CN220009876U - Steering column and vehicle - Google Patents

Abstract

The utility model discloses a steering column and a vehicle, which belong to the technical field of vehicles. The steering column includes: a first drive motor; a steering shaft, one end of the steering shaft is coaxially connected to the power output shaft of the first drive motor, and the other end of the steering shaft is used to be fixedly connected to the steering wheel. ; Controller, the controller is electrically connected to the first drive motor, and the controller controls the first drive motor to drive the steering shaft to rotate. The controller in the utility model drives the first drive motor to run, and the power output shaft of the first drive motor drives the steering shaft to rotate and transmits the torque to one end of the steering wheel, which avoids the possibility of installing a deceleration mechanism between the drive motor and the steering shaft. The mechanical transmission error caused by the reduction mechanism and the abnormal noise caused by the wear gap of the reduction mechanism. Matching the steering situation of the steering wheel with the steering situation of the wheel end, solving the problem of the steering wheel feeling dragging.

Description

Steering column and vehicle

Technical field

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

Background technique

A series of devices used to change or maintain the direction of travel or reverse of a car is called the vehicle steering column, which can control the direction of the vehicle according to the driver's wishes. In a traditional vehicle steering column, the upper part of the vehicle's steering shaft is fixedly connected to the steering wheel, and the lower end of the rotating shaft is usually connected to the vehicle's steering gear to transmit the steering torque exerted by the driver on the steering wheel to the steering gear to achieve steering of the vehicle.

The various structures in the traditional steering column are prone to fluctuations in the steering wheel steering feel due to mechanical transmission errors, affecting the user experience. Therefore, steer-by-wire technology emerged as the times require. Its device includes a steer-by-wire motor, a reduction mechanism and a steering shaft. The steer-by-wire motor is connected to the steering shaft through a reduction mechanism to provide steering torque for the steering shaft.

The existing steering-by-wire technology has the following shortcomings: due to the deceleration mechanism provided between the motor and the steering shaft, a certain mechanical transmission error will occur. The steering-by-wire motor does not directly control the steering shaft, which can easily cause the steering wheel to feel sluggish. In addition, abnormal noise will occur due to the wear gap of the reduction mechanism.

Utility model content

The purpose of embodiments of the present invention is to provide a steering column and a vehicle that can solve the problem of mechanical transmission errors of the deceleration mechanism, which easily lead to the steering wheel feeling being sluggish and the wear gap of the deceleration mechanism causing abnormal noise.

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

In a first aspect, an embodiment of the present utility model provides a steering column, including:

first drive motor;

Steering shaft, one end of the steering shaft is coaxially connected to the power output shaft of the first drive motor, and the other end of the steering shaft is used to be fixedly connected to the steering wheel;

A controller, the controller is electrically connected to the first drive motor, and the controller controls the first drive motor to drive the steering shaft to rotate.

Optionally, the steering column also includes a first sleeve and a sliding sleeve;

The steering shaft and the power output shaft of the first drive motor are coaxially connected through splines;

Along the axial direction of the steering shaft, the first sleeve and the sliding sleeve are sleeved on the outside of the power output shaft of the first drive motor and the steering shaft;

One end of the first sleeve is fixedly connected to the first drive motor housing;

One end of the sliding tube is slidingly connected to the other end of the first sleeve, and the other end of the sliding tube is fixedly connected to the steering shaft.

Optionally, the steering column further includes a fixing member;

The first drive motor is connected to the fixing part, and the fixing part is used to be fixedly connected to the vehicle body.

Optionally, the steering column also includes a second drive motor, a first screw rod and a first slider;

The first screw rod is connected to the second drive motor;

The first slide block is sleeved on the outer wall of the first screw rod and is threadedly connected to the first screw rod. The first slide block is fixedly connected to the sliding barrel;

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

Optionally, the steering column further includes a second sleeve;

One end of the second sleeve is fixedly connected to the second drive motor, and one end of the first screw extends into the inner cavity of the second sleeve and the second screw through the opening at the other end of the second sleeve. The second driving motor is connected, and the outer wall of the second sleeve is fixedly connected to the first sleeve.

Optionally, the steering column also includes a third drive motor, a second screw rod, a second slide block, a connecting piece and a swing rod;

The second screw rod is connected to the third drive motor;

The second slider is sleeved on the outer wall of the second screw rod and is threadedly connected to the second screw rod. The outer wall of the second slider is provided with a connecting shaft, and the connecting shaft is connected to the second screw rod. The axis of the screw is vertical;

The end of the connecting shaft is hinged to the connecting piece, the connecting piece is hinged to one end of the swing rod and the first sleeve, and the other end of the swing rod is hinged to the fixed piece;

The first drive motor is hingedly connected to the fixing member;

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

Optionally, the steering column further includes a third sleeve;

One end of the third sleeve is fixedly connected to the third drive motor, and one end of the second screw extends from the opening at the other end of the third sleeve into the inner cavity of the third sleeve and the The third drive motor is connected, and the outer wall of the third sleeve is fixedly connected to the first sleeve.

Optionally, a collapse structure is provided between the first sleeve and the sliding cylinder.

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

In a second aspect, an embodiment of the present invention provides a vehicle, including the steering column described in any of the above embodiments.

In the embodiment of the present invention, the power output shaft and the steering shaft are coaxially connected, and the controller is electrically connected to the first drive motor. The controller can receive attitude information or road condition driving information from the vehicle, and then drive the first drive motor to operate. , the power output shaft of the first drive motor drives the steering shaft to rotate and transmits the torque to one end of the steering wheel, which avoids the mechanical transmission error that may be caused when a reduction mechanism is set up between the drive motor and the steering shaft, as well as the wear gap of the reduction mechanism. The abnormal noise produced matches the steering situation of the steering wheel with the steering situation of the wheel end, solving the problem of the steering wheel's sluggish feel.

The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, it can be implemented according to the contents of the specification, and in order to make the above and other objects, features and advantages of the present utility model more clear. It is obvious and easy to understand, and the specific implementation modes of the present invention are specifically mentioned below.

Description of the drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a schematic structural diagram of a steering column provided by an embodiment of the present utility model;

Figure 2 is an exploded schematic diagram of the structure of the first drive motor and the steering shaft in the embodiment of the present utility model;

Figure 3 is a schematic diagram of the structural connection between the first drive motor and the steering shaft in the embodiment of the present utility model;

Figure 4 is a schematic structural diagram of the height adjustment device in the embodiment of the present utility model;

Figure 5 is a schematic structural diagram of the angle adjustment device in the embodiment of the present utility model;

Figure 6 is a schematic structural diagram of a collapse component in an embodiment of the present invention.

Explanation of reference symbols:

1-first drive motor, 11-power output shaft, 21-steering shaft, 22-fixed bearing, 3-controller, 4-fixture, 5-height adjustment device, 51-second drive motor, 52-first Screw, 521-end cover, 53-second sleeve, 531-limiting cylinder, 54-first slide block, 541-connecting plate, 6-angle adjustment device, 61-third drive motor, 62-second Screw, 63-connecting piece, 64-swing rod, 65-third sleeve, 66-second slide block, 661-connecting shaft, 67-connecting rod, 7-collapse component, 71-first sleeve, 72-Slip barrel.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, not all of the embodiments. . Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

The terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that embodiments of the invention can be practiced in sequences other than those illustrated or described herein, and that "first," "second," etc. are distinguished The objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

The steering column and vehicle provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

Referring to Figures 1 to 3, the steering column provided by the embodiment of the present invention includes: a first drive motor 1; a steering shaft 21. One end of the steering shaft 21 is connected to the power output shaft of the first drive motor 1. 11 is coaxially connected, and the other end of the steering shaft 21 is used for fixed connection with the steering wheel; controller 3, the controller 3 is electrically connected to the first drive motor 1, and the controller 3 controls the third drive motor 1. A driving motor 1 drives the steering shaft 21 to rotate.

Specifically, Figure 1 shows a schematic structural diagram of the steering column provided by the embodiment of the present invention. Figure 2 shows a schematic structural diagram of the first drive motor 1 and the steering shaft 21 in the embodiment of the present utility model. Figure 3 shows A schematic diagram of the structural connection between the first drive motor 1 and the steering shaft 21 in the embodiment of the present invention is shown. The steering column includes the first drive motor 1, the power output shaft 11, the steering shaft 21 and the controller 3. The power output shaft 11 of the first drive motor 1 is coaxially connected to one end of the steering shaft 21, and the other end of the steering shaft 21 is used to be fixedly connected to the steering wheel. When the first driving motor 1 is running, the power output shaft 11 rotates and drives the steering shaft 21 to rotate. The first drive motor 1 adopts a low-speed, high-torque direct drive motor, which has the function of decelerating and increasing torque, and has the characteristics of dynamic and precise rotation control of one end of the steering wheel.

Specifically, the controller 3 is electrically connected to the signal receiving end of the first drive motor 1 , and the controller 3 can be fixed on the first drive motor 1 or other vehicle devices. When the vehicle needs to enter the steer-by-wire mode, the controller 3 communicates and interconnects with the vehicle driving control device or related interaction modules through wired or wireless methods to send and receive data, including but not limited to status information interaction, diagnostic information interaction and OTA movement. Communication interaction, in which the controller 3 analyzes the vehicle steering angle signal, torque signal, vehicle speed signal, road condition information, etc., processes these signals, and sends them to the first drive motor 1, which drives the power output shaft 11 The steering shaft 21 is driven to rotate to transmit torque to one end of the steering wheel, so that the steering condition of the steering wheel matches the steering condition of the wheel end. In some embodiments, when the vehicle enters assisted driving or unmanned driving, the controller 3 can control the first drive motor 1 to silence the steering wheel, that is, the wheel end turns, but the steering wheel does not rotate; when the real vehicle is driving , can sense the steering angle information at the steering wheel end at the same time, compare it with the steering angle information at the wheel end, and transmit the feedback adjustment information to the control module at the wheel end such as the wheel steering gear, thereby adjusting the wheel steering; when entering the game working condition, you can Provides signal input to the game control module.

In the steering column provided by the embodiment of the present invention, the power output shaft 11 of the first drive motor 1 and the steering shaft 21 are coaxially connected, eliminating the need for a reduction mechanism provided between the first drive motor 1 and the steering shaft 21. After receiving and analyzing the vehicle steering angle signal and torque signal, the controller 3 drives the operation of the first drive motor 1. The first drive motor 1 drives the power output shaft 11 and the steering shaft 21 to rotate synchronously, and directly transmits the torque to one end of the steering wheel. , to avoid mechanical transmission errors that may be caused when a reduction mechanism is set between the drive motor 1 and the steering shaft 21, as well as abnormal noise caused by the wear gap of the reduction mechanism, so that the steering situation of the steering wheel matches the steering situation of the wheel end. Solve the problem of steering wheel lag.

Optionally, referring to Figures 1, 3 and 6, the steering column also includes a first sleeve 71 and a sliding barrel 72; the steering shaft 21 and the power output shaft 11 of the first drive motor 1 Coaxially connected through splines; along the axial direction of the steering shaft 21, the first sleeve 71 and the sliding cylinder 72 are sleeved on the power output shaft 11 of the first drive motor 1 and the steering The outside of the shaft 21; one end of the first sleeve 71 is fixedly connected to the housing of the first drive motor 1; one end of the sliding tube 72 is slidingly connected to the other end of the first sleeve 71, so The other end of the sliding tube 72 is fixedly connected to the steering shaft 21 .

Specifically, as shown in Figures 1, 3 and 6, one end of the steering shaft 21 is connected to the power output shaft 11 through splines. In some embodiments, an internal spline at one end of the steering shaft 21 can be connected to the power output shaft 11. The external splines of the steering shaft 11 are assembled and connected, or the external splines of one end of the steering shaft 21 are assembled and connected with the internal splines of the power output shaft 11. The former connection method is preferably used. When the height of one end of the steering wheel changes, the steering shaft 21 can slide relative to the power output shaft 11 along the axial direction, that is, the up and down height change of one end of the steering wheel will be transmitted to the power output shaft 11 through the steering shaft 21 . The first sleeve 71 and the sliding sleeve 72 are sleeved on the outside of the power output shaft 11 and the steering shaft 21 of the first drive motor 1 , wherein one end of the first sleeve 71 is fixedly connected to the housing of the first drive motor 1 , the other end of the first sleeve 71 is slidingly connected to one end of the sliding tube 72 , and the other end of the sliding tube 72 is fixedly connected to the steering shaft 21 . When the steering shaft 21 slides relative to the power output shaft 11 along the axis, the sliding cylinder 72 can be driven to slide relative to the first sleeve 71 along the axis. On the contrary, when the sliding cylinder 72 slides relative to the first sleeve 71 along the axis, At this time, the steering shaft 21 can also be driven to slide relative to the power output shaft 11 along the axial direction.

Optionally, referring to Figures 1 to 3, the steering column further includes a fixing part 4; the first drive motor 1 is connected to the fixing part 4, and the fixing part 4 is used to be fixedly connected to the body of the vehicle body.

Specifically, as shown in Figures 1 to 3, the fixing part 4 is connected to the first drive motor 1, and multiple fixing points are provided on the fixing part 4 for fixed connection with the vehicle device to ensure that the steering column can be fixed. On the whole vehicle device, the torque generated when the steering wheel rotates at the same time will not interfere with the vehicle's driving posture and direction adjustment.

Optionally, referring to Figures 1 to 4, the steering column also includes a second drive motor 51, a first screw 52, and a first slider 54; the first screw 52 and the second drive motor 51 connection; the first slider 54 is sleeved on the outer wall of the first screw rod 52 and is threadedly connected to the first screw rod 52. The first slider 54 is fixed to the sliding cylinder 72. Connection; the second drive motor 51 is fixedly connected to the first sleeve 71, the second drive motor 51 is electrically connected to the controller 3, and the controller 3 controls the second drive motor 51 to drive The first screw 52 rotates.

Specifically, Figure 4 shows a schematic structural diagram of the height adjustment device 5 in the embodiment of the present invention. As shown in Figures 1 to 3, the height adjustment device 5 includes a second drive motor 51, a first screw rod 52 and a first screw. The slider 54, in which the second drive motor 51 is a linear stepper motor, is connected to the first screw rod 52 with 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 threadedly connected to the first screw rod 52. The first slider 54 is provided with a connecting plate 541, and the connecting plate 541 is connected to the sliding cylinder 72 through threaded fasteners. Fixed connection, fixed points on the sliding cylinder 72 are not shown in the figure. The second drive motor 51 is electrically connected to the controller 3. The controller 3 sends a steering wheel height adjustment command to the second drive motor 51. The second drive motor 51 drives the first screw rod 52 to rotate, and is affected by the external thread structure of the first screw rod 52. Under the influence of rotation, the first slider 54 moves along the axis direction, synchronously driving the sliding cylinder 72 and the steering shaft 21 to move, completing the adjustment of the up and down height of the steering wheel, thereby adapting to the needs of different drivers' body shapes and driving habits.

Optionally, referring to Figures 1 to 4, the steering column also includes a second sleeve 53; one end of the second sleeve 53 is fixedly connected to the second drive motor 51, and the first lead screw One end of 52 extends from the opening of the other end of the second sleeve 53 into the inner cavity of the second sleeve 53 and is connected to the second drive motor 51. The outer wall of the second sleeve 53 is connected to the second drive motor 51. A sleeve 71 is fixedly connected.

Specifically, as shown in FIGS. 1 to 4 , the second drive 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 drive motor 51 , and the other end of the second sleeve 53 is fixedly connected to the second drive motor 51 . An opening is provided at one end. One end of the first screw rod 52 extends from the opening at the other end of the second sleeve 53 into the inner cavity of the second sleeve 53 and is connected to the second drive motor 51 . Two symmetrical threaded fasteners are provided on the side wall of the second sleeve 53 for fixed connection with the A position of the first sleeve 71 . In addition, since the power output shaft 11 of the second drive motor 51 is not coaxial with the first screw rod 52, the second sleeve 53 also provides a rotation direction from the power output shaft 11 of the second drive motor 51 to the first screw rod 52. conversion structure. The end of the second sleeve 53 away from the second drive motor 51 is provided with a limiting sleeve 531 to restrict the movement of the first slider 54 along the axis toward the second drive motor 51 so as to prevent the movement from being too large and interfering with the second sleeve. 53 collision. The other end of the first screw rod 52 is provided with an end cap 521 to restrict the movement of the first slider 54 along the axis in a direction away from the second driving motor 51 so as to prevent it from slipping off the first screw rod 52 .

Optionally, referring to Figures 1 to 5, the steering column also includes a third drive motor 61, a second screw rod 62, a second slider 66, a connecting piece 63 and a swing rod 64; the second screw rod 62 is connected to the third drive motor 61; the second slider 66 is sleeved on the outer wall of the second screw rod 62 and is threadedly connected to the second screw rod 62. The second slider 66 The outer wall is provided with a connecting shaft 661, which is perpendicular to the axis of the second screw 62; the end of the connecting shaft 661 is hinged to the connecting piece 63, and the connecting piece 63 is connected to the swing rod. One end of 64 is hinged to the first sleeve 71, and the other end of the swing rod 64 is hinged to the fixing member 4; the first driving motor 1 is hinged to the fixing member 4; the third driving motor 61 is fixedly connected to the first sleeve 71, and the third driving motor 61 is electrically connected to the controller 3. The controller 3 controls the third driving motor 61 to drive the second screw rod 62 to rotate. .

Specifically, Figure 5 shows a schematic structural diagram of the angle adjustment device 6 in the embodiment of the present invention. As shown in Figures 1 to 4, the angle adjustment device 6 includes a third drive motor 61, a second screw rod 62, Two slide blocks 66, connecting pieces 63 and swing rods 64. The third driving motor 61 is a linear stepper motor and is connected to the second screw rod 62 with a threaded structure. The second slide block 66 is sleeved on the outer wall of the second screw rod 62 and is threadedly connected with the first screw rod 52 . Two connecting shafts 661 are symmetrically provided on the side wall of the second slider 66. The two connecting shafts 661 can be a split structure or an integrated structure and penetrate the second slider 66. Each connecting member 63 is provided with three hinge points. , respectively used for hinged connection with the connecting shaft 661, the first sleeve 71 and the swing rod 64, wherein the first sleeve 71 is hinged with the connecting piece 63 at position C, and the other end of the swing rod 64 is hinged with the fixed piece 4. The third drive motor 61 is electrically connected to the controller 3. The controller 3 sends a steering wheel angle adjustment command to the third drive motor 61. The third drive motor 61 drives the second screw rod 62 to rotate, and is affected by the external thread structure of the second screw rod 62. Under the influence of rotation, the second slider 66 moves in the axial direction, driving the connecting piece 63 to rotate around the axis of the connecting shaft 661. At this time, the swing rod 64 rotates around the hinge axis of the swing rod 64 and the fixed piece 4, which is the D-D axis in Figure 1. Driven by the connecting piece 63, both the first sleeve 71 and the steering shaft 21 rotate. Correspondingly, the first drive motor 1 rotates around the E-E axis in Figure 1 to realize the pitch angle adjustment function of the steering wheel. The connecting rod 67 is connected between the two connecting parts 63 to form a consistent rotation range of the connecting parts 63 on both sides, thereby ensuring the stability of the rotation of the steering shaft 21 .

In addition, the embodiment of the present utility model can realize the triggering of different scenarios through the height adjustment device 5 and the angle adjustment device 6, such as the vehicle welcome function, avoidance function and identity recognition entry, as well as the adjustment of the central control virtual buttons or physical adjustment handles.

Optionally, referring to Figures 1 to 5, the steering column further includes a third sleeve 65; one end of the third sleeve 65 is fixedly connected to the third drive motor, and the second wire One end of the rod 62 extends from the opening at the other end of the third sleeve 65 into the inner cavity of the third sleeve 65 and is connected to the third drive motor 61 , and the outer wall of the third sleeve 65 is connected to the third sleeve 65 . The first sleeve 71 is fixedly connected.

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

Optionally, referring to FIGS. 1 to 6 , a collapse structure is provided between the first sleeve 71 and the sliding cylinder 72 .

Specifically, Figure 6 shows a schematic structural diagram of the collapse assembly 7 in the embodiment of the present invention. The collapse assembly 7 includes a first sleeve 71 and a sliding barrel 72. One end of the first sleeve 71 is connected to the first drive motor. The shell of 1 is fixedly connected, the other end is slidingly connected to one end of the sliding tube 72, and the other end of the sliding tube 72 is fixedly connected to the steering shaft 21. A collapse structure is provided between the first sleeve 71 and the slip sleeve 72. When the interaction force between the two exceeds a preset threshold, collapse slip will occur. That is, when the vehicle has an accident such as emergency stop or collision, the steering The shaft 21 will instantly receive a downward force along the direction of gravity, driving the sliding cylinder 72 to slide in the axial direction. A strong sliding force will be generated between the first sleeve 71 and the sliding cylinder 72, and the collapse between the two will occur. The structure collapses and deforms to absorb collision energy to reduce collisions with drivers. During this process, the friction force between the first sleeve 71 and the sliding sleeve 72 sliding against each other is the collapse force value. During the production of vehicle parts, the collapse force value can be fed back by monitoring the pressing force, which may cause subsequent damage to the product. The collapse absorption energy can be better predicted.

Optionally, referring to FIG. 6 , a fixed bearing 22 is provided between the steering shaft 21 and the other end of the sliding 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 sliding cylinder 72 to increase the connection force between the steering shaft 21 and the sliding cylinder 72 and ensure that the collapse assembly 7 Normal implementation of collapse functionality.

An embodiment of the present invention also provides a vehicle, including the steering column described in any of the above embodiments. The vehicle and the steering column have the same advantages, so they will not be described again here.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element.

The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. It is common skill in the art to Under the inspiration of this utility model, without departing from the purpose of this utility model and the scope protected by the claims, people can also make many forms, all of which fall within the protection of this utility model.

Claims (9)

1. A steering column, characterized in that it includes: first drive motor; Steering shaft, one end of the steering shaft is coaxially connected to the power output shaft of the first drive motor through splines, and the other end of the steering shaft is used to be fixedly connected to the steering wheel; A controller, the controller is electrically connected to the first drive motor, and the controller controls the first drive motor to drive the steering shaft to rotate; a first sleeve, one end of which is fixedly connected to the first drive motor housing; Sliding tube, one end of the sliding tube is slidingly connected to the other end of the first sleeve, and the other end of the sliding tube is fixedly connected to the steering shaft; Along the axial direction of the steering shaft, the first sleeve and the sliding sleeve are sleeved on the outside of the power output shaft of the first drive motor and the steering shaft. 2. The steering column according to claim 1, wherein the steering column further includes a fixing member; The first drive motor is connected to the fixing part, and the fixing part is used to be fixedly connected to the vehicle body. 3. The steering column according to claim 1, wherein the steering column further includes a second drive motor, a first screw rod and a first slider; The first screw rod is connected to the second drive motor; The first slide block is sleeved on the outer wall of the first screw rod and is threadedly connected to the first screw rod. The first slide block is fixedly connected to the sliding barrel; The second drive motor is fixedly connected to the first sleeve, the second drive motor is electrically connected to the controller, and the controller controls the second drive motor to drive the first screw rod to rotate. 4. The steering column according to claim 3, wherein the steering column further includes a second sleeve; One end of the second sleeve is fixedly connected to the second drive motor, and one end of the first screw extends into the inner cavity of the second sleeve and the second screw through the opening at the other end of the second sleeve. The second driving motor is connected, and the outer wall of the second sleeve is fixedly connected to the first sleeve. 5. The steering column according to claim 2, wherein the steering column further includes a third drive motor, a second screw rod, a second slide block, a connecting piece and a swing rod; The second screw rod is connected to the third drive motor; The second slider is sleeved on the outer wall of the second screw rod and is threadedly connected to the second screw rod. The outer wall of the second slider is provided with a connecting shaft, and the connecting shaft is connected to the second screw rod. The axis of the screw is vertical; The end of the connecting shaft is hinged to the connecting piece, the connecting piece is hinged to one end of the swing rod and the first sleeve, and the other end of the swing rod is hinged to the fixed piece; The first drive motor is hingedly connected to the fixing member; The third drive motor is fixedly connected to the first sleeve, the third drive motor is electrically connected to the controller, and the controller controls the third drive motor to drive the second screw rod to rotate. 6. The steering column according to claim 5, wherein the steering column further includes a third sleeve; One end of the third sleeve is fixedly connected to the third drive motor, and one end of the second screw extends from the opening at the other end of the third sleeve into the inner cavity of the third sleeve and the The third drive motor is connected, and the outer wall of the third sleeve is fixedly connected to the first sleeve. 7. The steering column according to claim 1, wherein a collapse structure is provided between the first sleeve and the sliding barrel. 8. The steering column according to claim 7, wherein a fixed bearing is provided between the steering shaft and the other end of the sliding tube. 9. A vehicle, characterized by comprising the steering column according to any one of claims 1 to 8.