CN220721186U - Steering control device and trailer control system - Google Patents

Abstract

The utility model relates to the field of trailer control devices, and provides a steering control device and a trailer control system. The steering control device comprises a steering wheel shaft, a steering main pin and a driving device, wherein the steering wheel shaft can adjust the steering wheel angle of the trailer; one end of the steering main pin is connected with a steering wheel shaft; the driving device is connected with the other end of the steering main pin and drives the steering wheel shaft to rotate, so that the steering wheels of the trailer are driven to coaxially rotate. The trailer control system comprises a tractor, a trailer and a steering control device, wherein the tractor is provided with a tractor trailer device, and the trailer is provided with a trailer device. According to the steering control device and the trailer control system, the driving device is connected with one end of the steering main pin and drives the steering wheel shaft connected with the other end of the steering main pin to rotate, so that the steering wheel of the trailer is driven to coaxially rotate, the tractor is convenient to pull the trailer to linearly reverse, and the reversing track of the trailer is smoother and controllable.

Description

Steering control device and trailer control system

Technical Field

The utility model relates to the technical field of vehicle control, in particular to a steering control device and a trailer control system.

Background

When the traction vehicle pulls the trailer to go forward and turn through the traction device, the articulated part of the trailer is required to have relative rotation freedom degree, so that the trailer and the central axis of the traction vehicle form a certain angle, the trailer tires are prevented from sideslip, and excessive resistance is further generated. However, this rotational freedom makes it difficult for the driver to control the direction of movement of the trailer when the tractor is backing, especially on long and narrow terrain, where failure to control the direction of movement of the trailer can easily result in tipping of the trailer. Most of the existing solutions are to control the steering direction of the trailer by controlling the steering angle of the tractor. But the motion of the tractor is transferred to the trailer, and is influenced by the terrain, the precision of the hinging device and the like, so that the steering control of the tractor is rough, and the motion trail of the whole trailer is disordered.

Disclosure of Invention

The utility model aims to provide a steering control device and a trailer control system, wherein a driving device is connected with one end of a steering main pin and drives a steering wheel shaft connected with the other end of the steering main pin to rotate, so that a steering wheel of a trailer is driven to coaxially rotate, the tractor is convenient to pull the trailer to linearly reverse, and the reversing track of the trailer is smoother and controllable.

In order to achieve the above object, the present utility model provides a steering control device for adjusting the steering wheel angle of a trailer when the trailer is reversed, the steering control device comprising a steering wheel shaft, a steering kingpin and a driving device; the steering wheel axle can adjust the steering wheel angle of the trailer; one end of the steering main pin is connected with the steering wheel shaft; the driving device is connected with the other end of the steering main pin and drives the steering wheel shaft to rotate, so that the steering wheels of the trailer are driven to coaxially rotate.

In some embodiments, the drive means comprises a pushing device and a steering swing comprising a first end and a second end, the first end being connected to the kingpin and the second end being connected to the output end of the pushing device.

In some embodiments, the pushing device is an electric putter, the electric putter is disposed along a width direction of the trailer, the steering knuckle is disposed along a length direction of the trailer, and the electric putter drives the second end of the steering knuckle to rotate about the first end such that the kingpin and the steering wheel shaft rotate.

In some embodiments, the electric push rod is a bidirectional electric push rod, and the bidirectional electric push rod can drive the steering main pin and the steering wheel shaft on two sides of the trailer to rotate at the same time on two ends of the width direction of the trailer.

In some embodiments, the number of the electric pushing rods is two, the two electric pushing rods are symmetrically arranged, and the two electric pushing rods are respectively connected with the steering main pins on two sides of the trailer.

In some embodiments, the output end of the electric putter is further provided with a ball joint, and the ball joint is connected to the second end of the steering swing.

In some embodiments, the trailer is provided with a tube shaft in the width direction, two ends of the tube shaft are provided with main pin sleeve shafts, and the steering main pin and the steering wheel shaft are coaxially arranged on the main pin sleeve shafts.

In some embodiments, the drive device comprises an electric pushrod coupled to the tube shaft via a mounting bracket disposed along a length of the trailer.

According to another aspect of the present application, there is further provided a trailer control system including a tractor, a trailer, and a steering control device in any of the above embodiments; the tractor is provided with a tractor pulling device; the trailer is provided with a trailer hitch, the trailer hitch is connected with the tractor hitch, and the trailer hitch has steering freedom degrees in the forward and backward directions.

In some embodiments, the device further comprises a sensing device comprising an angle sensor and a connection pin disposed at a junction of the tractor hitch and the trailer hitch;

the angle sensor comprises a fixed end and a movable end, wherein the fixed end is arranged on the tractor pulling device, and the movable end is arranged on the connecting pin shaft.

Compared with the prior art, the steering control device and the trailer control system provided by the utility model have the following beneficial effects:

1. the driving device is connected with one end of the steering main pin and drives the steering wheel shaft connected with the other end of the steering main pin to rotate, so that the steering wheel of the trailer is driven to coaxially rotate, the tractor is convenient to pull the trailer to linearly reverse, and the reversing track of the trailer is smoother and controllable.

2. The electric push rod is driven to steer and swing by electric power, the steering wheel of the trailer can be automatically controlled to reverse according to the required steering angle, a driver does not need to manually operate the steering wheel, the occurrence of the events such as collision, scratch and the like caused by insufficient reversing experience or unskilled operation of the driver is avoided, and the safety of the trailer in the reversing process is ensured.

3. The sensing device can sense the deflection angle of the trailer so as to adjust the steering wheel angle of the trailer through the steering control device according to the deflection angle of the trailer, and the trailer can be more smoothly and controllably reversed.

Drawings

The above features, technical features, advantages and implementation of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.

FIG. 1 is a top view of a steering control device;

FIG. 2 is an installation view of a steering control apparatus;

fig. 3 is a structural view of a steering control apparatus;

FIG. 4 is a partial view of a steering control apparatus;

FIG. 5 is an exploded view of a steering control device;

fig. 6 is a structural diagram of the sensing device.

Reference numerals illustrate:

steering control device 1, steering kingpin 11, steering wheel shaft 12, driving device 13, electric putter 131, steering sway 132, ball joint 133, pipe shaft 14, kingpin sleeve 141, mounting bracket 142, trailer 2, trailer hitch 21, steering wheel 22, tractor hitch 3, sensing device 4, angle sensor 41, fixed end 411, movable end 412, mounting plate 42, and connecting pin 43.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Referring to fig. 1 to 5, the present application provides a steering control device 1 for adjusting the angle of a steering wheel 22 of a trailer 2 when the trailer 2 is reversed, the steering control device 1 including a steering wheel shaft 12, a steering kingpin 11, and a driving device 13: the steering wheel axle 12 is able to adjust the steering wheel 22 angle of the trailer 2; one end of a steering main pin 11 is connected with a steering wheel shaft 12; the driving device 13 is connected to the other end of the kingpin 11 and drives the steering wheel shaft 12 to rotate, thereby driving the steering wheel 22 of the trailer 2 to coaxially rotate.

In this embodiment, the driving device 13 is connected to one end of the steering main pin 11 and drives the steering wheel shaft 12 connected to the other end of the steering main pin 11 to rotate, so as to drive the steering wheel 22 of the trailer 2 to coaxially rotate, so that the tractor trailer device 3 can pull the trailer 2 to linearly reverse, and the reversing track of the trailer 2 is more controllable.

Specifically, the driving means 13 comprises a pushing device and a steering swing 132, the steering swing 132 comprising a first end and a second end, the first end being connected to the kingpin 11 and the second end being connected to the output of the pushing device.

Notably, one end of the steering wheel shaft 12 is coaxially connected to a spoke of the steering wheel 22 of the trailer 2 along the width direction of the trailer 2 through a wheel shaft flange, and the steering wheel shaft 52 is capable of driving the steering wheel 22 of the trailer 2 to rotate. The other end of the steering wheel shaft 12 is provided with a receiving groove along the height direction of the trailer, and the steering king pin 11 is inserted into the receiving groove and is disposed coaxially with the other end of the steering wheel shaft 12.

Further, the pushing device is an electric push rod 131, the electric push rod 131 is arranged along the width direction of the trailer 2, the steering swing 132 is arranged along the length direction of the trailer 2, and the electric push rod 131 drives the second end of the steering swing 132 to rotate around the first end, so that the steering kingpin 11 and the steering wheel shaft 12 rotate.

In this embodiment, the electric putter 131 is disposed along the width direction of the trailer 2, the steering swing 132 is disposed along the length direction of the trailer 2, and the output end of the electric putter 131 drives the steering swing 132 to rotate, which has a simple structure and low cost. Meanwhile, the electric push rod 131 is used for electrically driving the steering swing 132, so that the steering wheel 22 of the trailer 2 can be automatically controlled to reverse according to the required steering angle, a driver does not need to manually operate the steering wheel, the occurrence of the events such as collision, scratch and the like caused by insufficient reversing experience or unskilled operation of the driver is avoided, and the safety of the trailer 2 in the reversing process is ensured.

Specifically, the width direction of the trailer 2 is the X-axis direction of the trailer 2, and the length direction of the trailer 2 is the Y-axis direction of the trailer 2. The second end of the steering swing 132 is located right in front of the first end, and at the same time, the output end of the electric push rod 131 is connected to the second end of the steering swing 132, and at this time, the driving direction of the electric push rod 131 is consistent with the deflection angle direction of the steering wheel 22 of the trailer 2. But the placement of the steer swing 132 includes, but is not limited to, this position. Referring to fig. 2, there are two electric pushers 131, and the two electric pushers 131 are symmetrically arranged and the two electric pushers 131 are respectively connected with the kingpins 11 on both sides of the trailer 2. The two electric pushers 131 include a first electric pusher and a second electric pusher, and output ends of the first electric pusher and the second electric pusher are opposite, so that the first electric pusher and the second electric pusher can respectively control the steering wheels 22 on the left side and the right side of the trailer 2.

It should be noted that, referring to fig. 4, the output end of the electric putter 131 is further provided with a ball joint 133, and the ball joint 133 is connected to the second end of the steering swing. The output end of the first electric putter, the steering swing 132 and the steering wheel shaft 12 are sequentially connected, the output end of the first electric putter pushes the steering swing 132 to the left side of the trailer 2, so that the ball joint 133 rotates around the first end of the steering swing 132, the steering wheel shaft 12 rotates along with the first end of the steering swing 132, and further the left steering wheel 22 of the trailer 2 deflects to the left side, and the second electric putter also operates. Although the first electric putter and the second electric putter can individually control the steering wheels 22 on the left and right sides of the trailer 2, for smooth reversing trajectory of the trailer 2, it is required that the first electric putter and the second electric putter should move in opposite directions at equal intervals so that the steering wheels 22 on the two sides of the trailer 2 are always parallel.

In a modified embodiment, the electric push rod 131 is a bidirectional electric push rod 131, and the bidirectional electric push rod 131 can simultaneously drive the kingpins 11 on both sides of the trailer 2 to rotate at both ends of the trailer 2 in the width direction.

Further, referring to fig. 2 and 3, a tube shaft 14 is provided in the width direction of the trailer 2, and a kingpin shaft 141 is provided at both ends of the tube shaft 14, the kingpin shaft 141 is connected to the steering wheel 22 of the tire of the trailer 2, and the kingpin 11 is mounted to the kingpin shaft 141.

In this embodiment, the pipe shaft 14 is arranged in the width direction of the trailer 2, and the steering main pin 11 and the steering wheel shaft 12 are mounted on main pin sleeve shafts 141 at two ends of the pipe shaft 14, so that the steering main pin 11 and the steering wheel shaft 12 are connected coaxially, and the steering main pin 11 can drive the steering wheel shaft 12 to rotate, thereby having stronger safety performance.

Specifically, the electric putter 131 is mounted to the tube shaft 14 by the mounting bracket 142, and the mounting bracket 142 is provided along the length direction of the trailer 2 and in the middle of the width direction of the tube shaft 14, so that the electric putter 131 and the steering wheel shaft 12 are coaxially mounted to the trailer 2, and the direction of the electric putter 131 is made to coincide with the width direction of the trailer 2.

In a variant embodiment, the drive means comprise an electrically controllable hydraulic steering mechanism or a motor-controlled worm gear mechanism.

Referring to fig. 1, the present application also provides a trailer 2 control system comprising a tractor, a trailer 2 and a steering control device 1 according to any of the above embodiments; the tractor is provided with a tractor pulling device 3; the trailer 2 is provided with a trailer hitch 21, the trailer hitch 21 being connected to the tractor hitch 3 and the trailer hitch 21 having a degree of freedom of steering in the forward direction.

In the present embodiment, the steering control device 1 can adjust the angle of the steering wheel 22 of the trailer 2 according to the deflection angle of the trailer 2, so that the trailer 2 can be more smoothly and controllably reversed.

Further, referring to fig. 6, the device further comprises a sensing device 4, the sensing device 4 comprises an angle sensor 41, and a connecting pin 43 is arranged at the joint of the tractor trailer hitch 3 and the trailer hitch 21; the angle sensor 41 includes a fixed end 411 and a movable end 412, the fixed end 411 is mounted to the trailer hitch 21, and the movable end 412 is mounted to the tractor hitch 3.

In this embodiment, the sensing device 4 is used to sense the deflection angle of the trailer 2. The tractor trailer device 3 can rotate relative to the connecting pin 43, and the movable end 412 is connected with the connecting pin 43 and rotates along with the connecting pin 43. The connecting pin 43 allows the trailer 2 a steering freedom for adapting the steering of the tractor, making the tractor to pull the trailer 2 forward or turn more flexible and reliable.

Specifically, the connecting pin 43 is partially pinned so that the tractor trailer 3 can rotate relative to the connecting pin 43; the trailer pulling device 21 is provided with a mounting groove matched with the cross section of the connecting pin shaft 43, and the connecting pin shaft 43 is fixedly arranged in the mounting groove; the movable groove is arranged at the corresponding position of the tractor trailer hitch device 3, and the connecting pin shaft 43 can rotate relative to the movable groove, so that the trailer 2 has steering freedom degree. Further, a mounting plate 42 is also included, and the fixed end 411 is mounted to the tractor hitch 3 by the mounting plate 42. Specifically, the mounting plate 42 is Z-shaped, and one end of the mounting plate 42 is mounted to the fixed end 411 and the other end is mounted to the tractor trailer 3.

In a variant embodiment, the sensing means 4 are GPS for determining the attitude of the tractor and the trailer 2 and thus the angle of deflection of the tractor and the trailer 2.

In another variant embodiment, the sensing device 4 comprises a laser generating device and a laser receiving device, the laser generating device is mounted on the tractor trailer device 3, the laser receiving device is mounted on the trailer device 21, and the deflection angle of the tractor and the trailer 2 is judged by the position of the laser receiving device receiving the laser of the laser generating device.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. A steering control device for adjusting the steering wheel angle of a trailer when the trailer is reversed, comprising:

a steering axle capable of adjusting a steering wheel angle of the trailer;

the steering main pin is connected with the steering wheel shaft at one end;

and the driving device is connected with the other end of the steering main pin and drives the steering wheel shaft to rotate, so that the steering wheel of the trailer is driven to coaxially rotate.

2. A steering control apparatus according to claim 1, wherein,

the driving device comprises pushing equipment and steering swing, the steering swing comprises a first end and a second end, the first end is connected with the steering main pin, and the second end is connected with the output end of the pushing equipment.

3. A steering control apparatus according to claim 2, wherein,

the pushing equipment is an electric push rod, the electric push rod is arranged along the width direction of the trailer, steering swing is arranged along the length direction of the trailer, and the electric push rod drives the second end of the steering swing to rotate around the first end, so that the steering main pin and the steering wheel shaft rotate.

4. A steering control apparatus according to claim 3, wherein,

the electric push rod is a bidirectional electric push rod, and the bidirectional electric push rod can drive the steering main pin and the steering wheel shaft on two sides of the trailer to rotate at the two ends of the width direction of the trailer.

5. A steering control apparatus according to claim 3, wherein,

the two electric push rods are symmetrically arranged and are respectively connected with the steering main pins on two sides of the trailer.

6. A steering control apparatus according to claim 5, wherein,

the output end of the electric push rod is also provided with a spherical hinge joint, and the spherical hinge joint is connected with the second end of the steering swing.

7. A steering control apparatus according to claim 1, wherein,

the trailer is characterized in that a pipe shaft is arranged in the width direction of the trailer, main pin sleeve shafts are arranged at two ends of the pipe shaft, and the steering main pin and the steering wheel shaft are coaxially arranged on the main pin sleeve shafts.

8. A steering control apparatus according to claim 7, wherein,

the driving device comprises an electric push rod, the electric push rod is connected to the pipe shaft through a mounting frame, and the mounting frame is arranged along the length direction of the trailer.

9. A trailer control system, comprising:

the tractor is provided with a tractor pulling device;

the trailer is provided with a trailer pulling device which is connected with the tractor pulling device and has steering freedom degrees in the forward and backward directions;

the steering control apparatus according to any one of claims 1 to 8.

10. A trailer control system as claimed in claim 9, wherein,

the device comprises a tractor trailer device, a trailer device, a sensing device and a control device, wherein the sensing device comprises an angle sensor and a connecting pin shaft, and the connecting pin shaft is arranged at the joint of the tractor trailer device and the trailer device;

the angle sensor comprises a fixed end and a movable end, wherein the fixed end is arranged on the tractor pulling device, and the movable end is arranged on the connecting pin shaft.