CN220009876U - Steering column and vehicle - Google Patents

Abstract

The utility model discloses a steering column and a vehicle, and belongs to the technical field of vehicles. The steering column includes: a first driving motor; one end of the steering shaft is coaxially connected with the power output shaft of the first driving motor, and the other end of the steering shaft is fixedly connected with the steering wheel; and the controller is electrically connected with the first driving motor and controls the first driving motor to drive the steering shaft to rotate. The controller drives the first driving motor to operate, the power output shaft of the first driving motor drives the steering shaft to rotate, torque is transmitted to one end of the steering wheel, and mechanical transmission errors possibly caused when a speed reducing mechanism is arranged between the driving motor and the steering shaft and abnormal noise generated by abrasion gaps of the speed reducing mechanism are avoided. The control condition of the steering wheel is matched with the steering condition of the wheel end, and the problem of hand feel dragging of the steering wheel is solved.

Description

Steering column and vehicle

Technical Field

The utility model belongs to the technical field of vehicles, and particularly relates to a steering column and a vehicle.

Background

A series of devices for changing or maintaining the running or reversing direction of an automobile, called a vehicle steering column, can control the running direction of the vehicle according to the driver's wishes. In a conventional steering column of a vehicle, the upper part of a steering shaft of the vehicle is fixedly connected with a steering wheel, the lower end of the rotating shaft is generally connected with a steering gear of the vehicle, and steering torque applied to the steering wheel by a driver is transmitted to the steering gear to realize steering of the vehicle.

The steering hand feeling of the steering wheel is easy to fluctuate due to mechanical transmission errors of various structures in the traditional steering column, and user experience is affected. Therefore, the steering-by-wire technology has developed, and the device comprises a steering-by-wire motor, a speed reducing mechanism and a steering shaft, wherein the steering-by-wire motor is connected with the steering shaft through the speed reducing mechanism to provide steering torque for the steering shaft.

The existing steer-by-wire technology has the following defects: because the speed reducing mechanism is arranged between the motor and the steering shaft, a certain mechanical transmission error can be caused, the steering shaft is not directly controlled by the wire control steering motor, and the hand feeling drag of the steering wheel is easy to be caused. In addition, abnormal sound may be generated due to a wear gap of the reduction mechanism.

Disclosure of Invention

The embodiment of the utility model aims to provide a steering column and a vehicle, which can solve the problems that the hand feeling of a steering wheel is easy to drag due to the mechanical transmission error of a speed reducing mechanism and the abrasion gap of the speed reducing mechanism generates abnormal sound.

In order to solve the technical problems, the utility model is realized as follows:

in a first aspect, an embodiment of the present utility model provides a steering column, comprising:

a first driving motor;

one end of the steering shaft is coaxially connected with the power output shaft of the first driving motor, and the other end of the steering shaft is fixedly connected with the steering wheel;

and the controller is electrically connected with the first driving motor and controls the first driving motor to drive the steering shaft to rotate.

Optionally, the steering column further comprises a first sleeve and a sliding cylinder;

the steering shaft is coaxially connected with a power output shaft of the first driving motor through a spline;

the first sleeve and the sliding sleeve are sleeved outside the power output shaft of the first driving motor and the steering shaft along the axial direction of the steering shaft;

one end of the first sleeve is fixedly connected with the first driving motor shell;

one end of the sliding cylinder is in sliding connection with the other end of the first sleeve, and the other end of the sliding cylinder is fixedly connected with the steering shaft.

Optionally, the steering column further comprises a fixing member;

the first driving motor is connected with the fixing piece, and the fixing piece is used for being fixedly connected with the body main body.

Optionally, the steering column further comprises a second driving motor, a first screw rod and a first sliding block;

the first screw rod is connected with the second driving motor;

the first sliding block is sleeved on the outer wall of the first screw rod and is in threaded connection with the first screw rod, and the first sliding block is fixedly connected with the sliding cylinder;

the second driving motor is fixedly connected with the first sleeve, the second driving motor is electrically connected with the controller, and the controller controls the second driving motor to drive the first screw rod to rotate.

Optionally, the steering column further comprises a second sleeve;

one end of the second sleeve is fixedly connected with the second driving motor, one end of the first screw rod extends into the inner cavity of the second sleeve from an opening at the other end of the second sleeve to be connected with the second driving motor, and the outer wall of the second sleeve is fixedly connected with the first sleeve.

Optionally, the steering column further comprises a third driving motor, a second screw rod, a second sliding block, a connecting piece and a swinging rod;

the second screw rod is connected with the third driving motor;

the second sliding block is sleeved on the outer wall of the second screw rod and is in threaded connection with the second screw rod, a connecting shaft is arranged on the outer wall of the second sliding block, and the connecting shaft is perpendicular to the axis of the second screw rod;

the end part of the connecting shaft is hinged with the connecting piece, the connecting piece is hinged with one end of the swinging rod and the first sleeve, and the other end of the swinging rod is hinged with the fixing piece;

the first driving motor is hinged with the fixing piece;

the third driving motor is fixedly connected with the first sleeve, the third driving motor is electrically connected with the controller, and the controller controls the third driving motor to drive the second screw rod to rotate.

Optionally, the steering column further comprises a third sleeve;

one end of the third sleeve is fixedly connected with the third driving motor, one end of the second screw rod extends into the inner cavity of the third sleeve from an opening at the other end of the third sleeve to be connected with the third driving motor, and the outer wall of the third sleeve is fixedly connected with the first sleeve.

Optionally, a crumple structure is disposed between the first sleeve and the slipping barrel.

Optionally, a fixed bearing is arranged between the steering shaft and the other end of the sliding cylinder.

In a second aspect, an embodiment of the present utility model provides a vehicle comprising a steering column according to any one of the embodiments described above.

In the embodiment of the utility model, the power output shaft is coaxially connected with the steering shaft, the controller is electrically connected with the first driving motor, the controller can receive the attitude information or road condition running information from the whole vehicle and further drive the first driving motor to run, the power output shaft of the first driving motor drives the steering shaft to rotate and transmits torque to one end of the steering wheel, so that mechanical transmission errors possibly caused by arranging a speed reducing mechanism between the driving motor and the steering shaft and abnormal sounds generated by abrasion gaps of the speed reducing mechanism are avoided, the control condition of the steering wheel is matched with the steering condition of the wheel end, and the problem of hand feeling drag of the steering wheel is solved.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of a steering column in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating the first driving motor and steering shaft in an embodiment of the present utility model;

FIG. 3 is a schematic view illustrating the connection of a first driving motor to a steering shaft in an embodiment of the present utility model;

FIG. 4 is a schematic view of a height adjusting device according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an angle adjusting device according to an embodiment of the present utility model;

FIG. 6 is a schematic illustration of a crush assembly in an embodiment of the present utility model.

Reference numerals illustrate:

1-first driving motor, 11-power output shaft, 21-steering shaft, 22-fixed bearing, 3-controller, 4-mounting, 5-height adjusting device, 51-second driving motor, 52-first lead screw, 521-end cover, 53-second sleeve, 531-spacing section of thick bamboo, 54-first slider, 541-connecting plate, 6-angle adjusting device, 61-third driving motor, 62-second lead screw, 63-connecting piece, 64-swinging rod, 65-third sleeve, 66-second slider, 661-connecting shaft, 67-connecting rod, 7-collapsing assembly, 71-first sleeve, 72-sliding section of thick bamboo.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The steering column and the vehicle provided by the embodiment of the utility model are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 1 to 3, a steering column according to an embodiment of the present utility model includes: a first drive motor 1; a steering shaft 21, wherein one end of the steering shaft 21 is coaxially connected with the power output shaft 11 of the first driving motor 1, and the other end of the steering shaft 21 is fixedly connected with a steering wheel; the controller 3 is electrically connected with the first driving motor 1, and the controller 3 controls the first driving motor 1 to drive the steering shaft 21 to rotate.

Specifically, fig. 1 shows a schematic diagram of a steering column structure provided by an embodiment of the present utility model, fig. 2 shows a schematic diagram of a first driving motor 1 and a steering shaft 21 in a split structure in an embodiment of the present utility model, and fig. 3 shows a schematic diagram of a first driving motor 1 and a steering shaft 21 in a structure connection in an embodiment of the present utility model, where the steering column includes the first driving motor 1, a power output shaft 11, the steering shaft 21 and a controller 3. The power output shaft 11 of the first drive motor 1 is coaxially connected with one end of a steering shaft 21, and the other end of the steering shaft 21 is fixedly connected with a steering wheel. When the first driving motor 1 is operated, the power output shaft 11 rotates and drives the steering shaft 21 to rotate. The first driving motor 1 adopts a low-speed high-torque direct-drive motor, has the functions of reducing speed and increasing torque, and has the characteristics of dynamics and accuracy in rotation control of one end of a steering wheel.

Specifically, the controller 3 is electrically connected to the signal receiving end of the first driving motor 1, and the controller 3 may be fixed to the first driving motor 1 or other vehicle devices. When the vehicle needs to enter the steer-by-wire mode, the controller 3 is in communication interconnection with the whole vehicle driving control device or a related interaction module in a wired or wireless mode to send and receive data, including but not limited to state information interaction, diagnosis information interaction and OTA mobile communication interaction, wherein the controller 3 analyzes a vehicle steering angle signal, a torque signal, a vehicle speed signal, road condition information and the like, processes the signals and sends the signals to the first driving motor 1, and the first driving motor 1 drives the power output shaft 11 to drive the steering shaft 21 to rotate so as to transmit torque to one end of the steering wheel, so that the steering condition of the steering wheel is matched with the steering condition of the wheel end. In some embodiments, when the whole vehicle enters auxiliary driving or unmanned driving, the controller 3 may control the first driving motor 1 to silence the steering wheel, i.e. the wheel end turns, but the steering wheel does not rotate; when a real vehicle runs, steering angle information of a steering wheel end can be perceived at the same time, and feedback adjustment information is transmitted to a control module of a wheel end such as a wheel steering device through comparison with the steering angle information of the wheel end, so that the steering of the wheels is adjusted; when a game condition is entered, a signal input may be provided to the game control module.

According to the steering column provided by the embodiment of the utility model, the power output shaft 11 of the first driving motor 1 is coaxially connected with the steering shaft 21, a speed reducing mechanism arranged between the first driving motor 1 and the steering shaft 21 is omitted, when the controller 3 receives and analyzes the steering angle signal and the torque signal of a vehicle, the first driving motor 1 is driven to operate, the first driving motor 1 drives the power output shaft 11 to synchronously rotate with the steering shaft 21, the torque is directly transmitted to one end of a steering wheel, mechanical transmission errors possibly caused when the speed reducing mechanism is arranged between the driving motor 1 and the steering shaft 21, and abnormal noise generated by abrasion gaps of the speed reducing mechanism are avoided, so that the steering condition of the steering wheel is matched with the steering condition of a wheel end, and the problem of hand feeling drag of the steering wheel is solved.

Optionally, referring to fig. 1, 3 and 6, the steering column further comprises a first sleeve 71 and a slip cylinder 72; the steering shaft 21 is coaxially connected with the power output shaft 11 of the first driving motor 1 through a spline; the first sleeve 71 and the sliding cylinder 72 are sleeved outside the power output shaft 11 of the first driving motor 1 and the steering shaft 21 along the axial direction of the steering shaft 21; one end of the first sleeve 71 is fixedly connected with the first driving motor 1 shell; one end of the sliding cylinder 72 is slidably connected with the other end of the first sleeve 71, and the other end of the sliding cylinder 72 is fixedly connected with the steering shaft 21.

Specifically, as shown in fig. 1, 3 and 6, one end of the steering shaft 21 is connected to the power output shaft 11 through a spline, in some embodiments, an internal spline at one end of the steering shaft 21 may be assembled with an external spline of the power output shaft 11, or an external spline at one end of the steering shaft 21 may be assembled with an internal spline of the power output shaft 11, preferably in the former connection manner. When the height of one end of the steering wheel is changed, the steering shaft 21 can slide relatively to the power output shaft 11 in the axial direction, i.e., the amount of change in the height of one end of the steering wheel is transmitted to the power output shaft 11 through the steering shaft 21. The first sleeve 71 and the sliding cylinder 72 are sleeved outside the power output shaft 11 and the steering shaft 21 of the first driving motor 1, wherein one end of the first sleeve 71 is fixedly connected with the shell of the first driving motor 1, the other end of the first sleeve 71 is slidably connected with one end of the sliding cylinder 72, and the other end of the sliding cylinder 72 is fixedly connected with the steering shaft 21. When the steering shaft 21 slides relatively to the power output shaft 11 along the axial direction, the sliding cylinder 72 is driven to slide relatively to the first sleeve 71 along the axial direction, whereas when the sliding cylinder 72 slides relatively to the first sleeve 71 along the axial direction, the steering shaft 21 is driven to slide relatively to the power output shaft 11 along the axial direction.

Optionally, referring to fig. 1 to 3, the steering column further comprises a fixing member 4; the first driving motor 1 is connected with the fixing piece 4, and the fixing piece 4 is fixedly connected with the body main body.

Specifically, as shown in fig. 1 to 3, the fixing member 4 is connected to the first driving motor 1, and a plurality of fixing points are provided on the fixing member 4 for being fixedly connected to the whole vehicle device, so that the steering column is ensured to be fixed to the whole vehicle device, and meanwhile, torque generated when the steering wheel rotates does not interfere with the running posture and direction adjustment of the vehicle.

Optionally, referring to fig. 1 to 4, the steering column further includes a second driving motor 51, a first screw 52, and a first slider 54; the first screw rod 52 is connected with the second driving motor 51; the first slider 54 is sleeved on the outer wall of the first screw rod 52 and is in threaded connection with the first screw rod 52, and the first slider 54 is fixedly connected with the sliding cylinder 72; the second driving motor 51 is fixedly connected with the first sleeve 71, the second driving motor 51 is electrically connected with the controller 3, and the controller 3 controls the second driving motor 51 to drive the first screw rod 52 to rotate.

Specifically, fig. 4 shows a schematic structural diagram of a height adjusting device 5 according to an embodiment of the present utility model, and in combination with fig. 1 to 3, the height adjusting device 5 includes a second driving motor 51, a first screw rod 52 and a first slider 54, where the second driving motor 51 is a linear stepping motor and is connected to the first screw rod 52 having an external thread structure. The second drive motor 51 is fixedly connected to the first sleeve 71. The first slider 54 is sleeved on the outer wall of the first screw rod 52 and is in threaded connection with the first screw rod 52, the first slider 54 is provided with a connecting plate 541, the connecting plate 541 is fixedly connected with the sliding cylinder 72 through a threaded fastener, and a fixed point diagram on the sliding cylinder 72 is not shown. The second driving motor 51 is electrically connected with the controller 3, the controller 3 sends a steering wheel height adjusting instruction to the second driving motor 51, the second driving motor 51 drives the first screw rod 52 to rotate, the first sliding block 54 moves along the axis direction under the influence of rotation of an external thread structure of the first screw rod 52 and synchronously drives the sliding cylinder 72 and the steering shaft 21 to move, and the adjustment of the steering wheel height is completed, so that the steering wheel height adjusting device is suitable for the body shape and driving habit requirements of different drivers.

Optionally, referring to fig. 1 to 4, the steering column further comprises a second sleeve 53; one end of the second sleeve 53 is fixedly connected with the second driving motor 51, one end of the first screw rod 52 extends into the inner cavity of the second sleeve 53 from the opening at the other end of the second sleeve 53 to be connected with the second driving motor 51, and the outer wall of the second sleeve 53 is fixedly connected with the first sleeve 71.

Specifically, as shown in fig. 1 to 4, the second driving motor 51 is fixedly connected to the first sleeve 71 through the second sleeve 53, one end of the second sleeve 53 is fixedly connected to the second driving motor 51, the other end is provided with an opening, and one end of the first screw rod 52 extends into the inner cavity of the second sleeve 53 from the opening at the other end of the second sleeve 53 to be connected to the second driving motor 51. Two symmetrical threaded fasteners are provided on the side wall of the second sleeve 53 for fixedly connecting with the a position of the first sleeve 71. In addition, since the power output shaft 11 of the second driving motor 51 is not coaxial with the first screw 52, the provision of the second sleeve 53 also provides a switching structure of the power output shaft 11 of the second driving motor 51 to the rotational direction of the first screw 52. One end of the second sleeve 53, which is away from the second driving motor 51, is provided with a limiting cylinder 531 to restrict the movement of the first slider 54 along the axis toward the second driving motor 51, so as not to cause the excessive movement amplitude to collide with the second sleeve 53. The other end of the first screw rod 52 is provided with an end cap 521 to restrict movement of the first slider 54 in a direction away from the second drive motor 51 along the axis without slipping off the first screw rod 52.

Optionally, referring to fig. 1 to 5, the steering column further includes a third driving motor 61, a second screw 62, a second slider 66, a connecting member 63, and a swing lever 64; the second screw 62 is connected with the third driving motor 61; the second sliding block 66 is sleeved on the outer wall of the second screw rod 62 and is in threaded connection with the second screw rod 62, a connecting shaft 661 is arranged on the outer wall of the second sliding block 66, and the connecting shaft 661 is perpendicular to the axis of the second screw rod 62; the end of the connecting shaft 661 is hinged with the connecting piece 63, the connecting piece 63 is hinged with one end of the swinging rod 64 and the first sleeve 71, and the other end of the swinging rod 64 is hinged with the fixing piece 4; the first driving motor 1 is hinged with the fixing piece 4; the third driving motor 61 is fixedly connected with the first sleeve 71, the third driving motor 61 is electrically connected with the controller 3, and the controller 3 controls the third driving motor 61 to drive the second screw 62 to rotate.

Specifically, as shown in fig. 5, which illustrates a schematic structural diagram of the angle adjusting device 6 in the embodiment of the present utility model, the angle adjusting device 6 includes a third driving motor 61, a second screw 62, a second slider 66, a connecting member 63, and a swinging rod 64, as shown in fig. 1 to 4. The third driving motor 61 is a linear stepping motor, and is connected to a second screw 62 having a screw structure. The second slider 66 is sleeved on the outer wall of the second screw rod 62 and is in threaded connection with the first screw rod 52. The side wall of the second sliding block 66 is symmetrically provided with two connecting shafts 661, the two connecting shafts 661 can be of a split structure or penetrate through the second sliding block 66 as a whole, each connecting piece 63 is provided with three hinge points which are respectively used for being hinged with the connecting shaft 661, the first sleeve 71 and the swinging rod 64, wherein the first sleeve 71 is hinged with the connecting piece 63 at the position C, and the other end of the swinging rod 64 is hinged with the fixing piece 4. The third driving motor 61 is electrically connected with the controller 3, the controller 3 sends a steering wheel angle adjustment instruction to the third driving motor 61, the third driving motor 61 drives the second screw rod 62 to rotate, the second sliding block 66 moves along the axial direction under the influence of the rotation of the external thread structure of the second screw rod 62, the connecting piece 63 is driven to rotate around the axis of the connecting shaft 661, at the moment, the swinging rod 64 rotates around the hinging axis of the swinging rod 64 and the fixing piece 4, namely the D-D axis in fig. 1, the first sleeve 71 and the steering shaft 21 are both rotated under the driving of the connecting piece 63, and accordingly, the first driving motor 1 rotates around the E-E axis in fig. 1, so that the pitching angle adjustment function of the steering wheel is realized. The connecting rod 67 is connected between the two connecting pieces 63 to form a consistency in the rotational amplitude of the connecting pieces 63 on both sides, thereby ensuring the rotational stability of the steering shaft 21.

In addition, the embodiment of the utility model can realize triggering of different scenes, such as the functions of welcome, avoidance and identification of vehicles, and the adjustment of a central control virtual key or an entity adjusting handle through the height adjusting device 5 and the angle adjusting device 6.

Optionally, referring to fig. 1 to 5, the steering column further comprises a third sleeve 65; one end of the third sleeve 65 is fixedly connected with the third driving motor 61, one end of the second screw 62 extends into the inner cavity of the third sleeve 65 from the opening at the other end of the third sleeve 65 to be connected with the third driving motor 61, and the outer wall of the third sleeve 65 is fixedly connected with the first sleeve 71.

Specifically, as shown in fig. 1 to 5, the third driving motor 61 is fixedly connected to the first sleeve 71 through the third sleeve 65, one end of the third sleeve 65 is fixedly connected to the third driving motor 61, the other end is provided with an opening, and one end of the second screw 62 extends into the inner cavity of the third sleeve 65 from the opening at the other end of the third sleeve 65 to be connected to the third driving motor 61. Two symmetrical threaded fasteners are provided on the side wall of the third sleeve 65 for fixedly connecting with the B position of the first sleeve 71.

Alternatively, referring to fig. 1 to 6, a crush structure is provided between the first sleeve 71 and the slipping cylinder 72.

Specifically, fig. 6 shows a schematic structural diagram of a crumple component 7 in the embodiment of the present utility model, where the crumple component 7 includes a first sleeve 71 and a sliding cylinder 72, one end of the first sleeve 71 is fixedly connected with the housing of the first driving motor 1, the other end is slidably connected with one end of the sliding cylinder 72, and the other end of the sliding cylinder 72 is fixedly connected with the steering shaft 21. The first sleeve 71 and the sliding cylinder 72 are provided with a crumple structure therebetween, crumple sliding is generated when the interaction force of the first sleeve 71 and the sliding cylinder 72 exceeds a preset threshold, namely, when an accident such as sudden stop or collision occurs to the vehicle, the steering shaft 21 is instantaneously subjected to downward force along the gravity direction to drive the sliding cylinder 72 to axially slide, a stronger sliding force is generated between the first sleeve 71 and the sliding cylinder 72, and the crumple structure between the first sleeve 71 and the sliding cylinder 72 generates crumple deformation to absorb collision energy so as to reduce collision to a driver. In the process, the friction force between the first sleeve 71 and the sliding cylinder 72 is a collapse force value, the collapse force value can be fed back through monitoring the pressing force during the production of the vehicle accessory, and the collapse energy absorption possibly occurring in the follow-up process of the product is better predicted.

Alternatively, referring to fig. 6, a fixed bearing 22 is provided between the steering shaft 21 and the other end of the slipping cylinder 72.

Specifically, as shown in fig. 6, a fixed bearing 22 is provided between the steering shaft 21 and the other end of the slipping cylinder 72 to increase the connection force between the steering shaft 21 and the slipping cylinder 72, ensuring the normal implementation of the crumple function of the crumple module 7.

The embodiment of the utility model also provides a vehicle, which comprises the steering column according to any one of the embodiments, and the vehicle and the steering column have the same advantages, so that the description is omitted here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (9)

1. A steering column, comprising:

a first driving motor;

one end of the steering shaft is coaxially connected with the power output shaft of the first driving motor through a spline, and the other end of the steering shaft is fixedly connected with a steering wheel;

the controller is electrically connected with the first driving motor and controls the first driving motor to drive the steering shaft to rotate;

one end of the first sleeve is fixedly connected with the first driving motor shell;

the sliding cylinder is characterized in that one end of the sliding cylinder is in sliding connection with the other end of the first sleeve, and the other end of the sliding cylinder is fixedly connected with the steering shaft;

and the first sleeve and the sliding sleeve are sleeved on the power output shaft of the first driving motor and the outside of the steering shaft along the axial direction of the steering shaft.

2. The steering column of claim 1, further comprising a fastener;

the first driving motor is connected with the fixing piece, and the fixing piece is used for being fixedly connected with the body main body.

3. The steering column of claim 1, further comprising a second drive motor, a first lead screw, and a first slider;

the first screw rod is connected with the second driving motor;

the first sliding block is sleeved on the outer wall of the first screw rod and is in threaded connection with the first screw rod, and the first sliding block is fixedly connected with the sliding cylinder;

the second driving motor is fixedly connected with the first sleeve, the second driving motor is electrically connected with the controller, and the controller controls the second driving motor to drive the first screw rod to rotate.

4. A steering column according to claim 3, further comprising a second sleeve;

one end of the second sleeve is fixedly connected with the second driving motor, one end of the first screw rod extends into the inner cavity of the second sleeve from an opening at the other end of the second sleeve to be connected with the second driving motor, and the outer wall of the second sleeve is fixedly connected with the first sleeve.

5. The steering column of claim 2, further comprising a third drive motor, a second lead screw, a second slider, a connector, and a swing lever;

the second screw rod is connected with the third driving motor;

the second sliding block is sleeved on the outer wall of the second screw rod and is in threaded connection with the second screw rod, a connecting shaft is arranged on the outer wall of the second sliding block, and the connecting shaft is perpendicular to the axis of the second screw rod;

the end part of the connecting shaft is hinged with the connecting piece, the connecting piece is hinged with one end of the swinging rod and the first sleeve, and the other end of the swinging rod is hinged with the fixing piece;

the first driving motor is hinged with the fixing piece;

the third driving motor is fixedly connected with the first sleeve, the third driving motor is electrically connected with the controller, and the controller controls the third driving motor to drive the second screw rod to rotate.

6. The steering column of claim 5, further comprising a third sleeve;

one end of the third sleeve is fixedly connected with the third driving motor, one end of the second screw rod extends into the inner cavity of the third sleeve from an opening at the other end of the third sleeve to be connected with the third driving motor, and the outer wall of the third sleeve is fixedly connected with the first sleeve.

7. The steering column of claim 1, in which a crush structure is disposed between the first sleeve and the slip tube.

8. A steering column according to claim 7 in which a fixed bearing is provided between the steering shaft and the other end of the slipping barrel.

9. A vehicle comprising a steering column according to any one of claims 1 to 8.