阅读说明：本技术 一种履带式升降机智能转向控制方法及控制装置 (Intelligent steering control method and control device for crawler-type elevator ) 是由 李卫宗 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种履带式升降机智能转向控制方法及控制装置,通过控制所述驱动液压缸伸出所述伸缩液压杆,所述伸缩液压杆带动所述稳定支撑杆竖向移动,同时所述固定筒、所述转向筒和所述支撑座朝向地面移动,直至所述支撑座与地面接触,将所述车体向上抬起,然后控制所述调整驱动电机驱动所述转向螺杆转动,带动所述转向筒与所述固定筒轴向转动,从而使得所述车体进行轴向转动,改变所述车体的车头方向,从而可快速对所述车体进行转向,避免沿原路返回而耽误施工效率。(The invention discloses an intelligent steering control method and a control device of a crawler-type lifter, wherein a driving hydraulic cylinder is controlled to extend out of a telescopic hydraulic rod, the telescopic hydraulic rod drives a stable support rod to vertically move, meanwhile, a fixed cylinder, a steering cylinder and a support seat move towards the ground until the support seat is contacted with the ground, a vehicle body is lifted upwards, then an adjusting and driving motor is controlled to drive a steering screw rod to rotate, the steering cylinder and the fixed cylinder are driven to axially rotate, the vehicle body is axially rotated, the direction of the head of the vehicle body is changed, the vehicle body can be quickly steered, and the phenomenon that construction efficiency is delayed due to the fact that the vehicle returns along the original path is avoided.)

1. The intelligent steering control device of the crawler-type elevator is characterized by comprising a vehicle body, crawler wheels and a support assembly;

the crawler wheels are rotatably connected with the vehicle body and are positioned on one side of the vehicle body;

the support assembly comprises a telescopic hydraulic rod, a driving hydraulic cylinder, a stable support rod, an adjusting member and a stable member, the telescopic hydraulic rod is fixedly connected with the vehicle body and is positioned on one side of the vehicle body close to the crawler wheels, the driving hydraulic cylinder is fixedly connected with the vehicle body and is positioned on one side of the vehicle body close to the telescopic hydraulic rod, the stable support rod is fixedly connected with the telescopic hydraulic rod and is positioned at one end of the telescopic hydraulic rod far away from the vehicle body, and the stable member is rotatably connected with the stable support rod, is rotatably connected with the telescopic hydraulic rod and is positioned on one side of the stable support rod close to the telescopic hydraulic rod;

the adjusting component comprises a fixed cylinder, a steering cylinder, a supporting seat, a steering screw and an adjusting driving motor, the fixed cylinder is fixedly connected with the stable supporting rod, and is positioned at one end of the stable support rod far away from the telescopic hydraulic rod, the steering cylinder is rotationally connected with the fixed cylinder, and is positioned at one side of the fixed cylinder far away from the stable supporting rod, the supporting seat is fixedly connected with the steering cylinder, and is positioned at one side of the steering cylinder far away from the fixed cylinder, the steering screw is rotationally connected with the fixed cylinder, and is fixedly connected with the steering cylinder and is positioned at one side of the steering cylinder close to the fixed cylinder, the adjusting driving motor is fixedly connected with the fixed cylinder, and the output shaft of the adjusting driving motor is fixedly connected with the steering screw rod.

2. The intelligent steering control device of a crawler elevator according to claim 1,

the stabilizing member comprises a first inclined pull rod and a second inclined pull rod, one end of the first inclined pull rod is rotatably connected with the stabilizing support rod, is in sliding connection with the fixed cylinder and is positioned on one side, close to the fixed cylinder, of the stabilizing support rod; one end of the second inclined pull rod is rotatably connected with the stable support rod, the other end of the second inclined pull rod is rotatably connected with the telescopic hydraulic rod, and the second inclined pull rod is located on one side, close to the first inclined pull rod, of the stable support rod.

3. The crawler elevator intelligent steering control apparatus of claim 2,

the telescopic hydraulic rod comprises a supporting cylinder and a telescopic cylinder, the supporting cylinder is fixedly connected with the vehicle body, is rotatably connected with the first inclined pull rod and is positioned between the vehicle body and the stable supporting rod; the telescopic cylinder is connected with the supporting cylinder in a sliding mode, is fixedly connected with the stabilizing support rod and is located between the supporting cylinder and the stabilizing support rod.

4. The crawler elevator intelligent steering control apparatus of claim 2,

the stabilizing component further comprises a sliding guide rail, the sliding guide rail is fixedly connected with the fixed cylinder, is in sliding connection with the first inclined pull rod, and is positioned on one side, close to the first inclined pull rod, of the fixed cylinder.

5. The intelligent steering control device of a crawler elevator according to claim 1,

the automobile body has the holding tank, the holding tank is located the automobile body is close to one side of adjustment driving motor, and with the adjustment driving motor cooperation.

6. An intelligent steering control method for a crawler-type elevator is characterized by comprising the following steps:

stopping the vehicle body stably, and controlling the driving hydraulic cylinder to extend out of the telescopic hydraulic rod;

the telescopic hydraulic rod drives the stable support rod, the fixed cylinder, the steering cylinder and the support seat to move towards the ground until the support seat is contacted with the ground;

controlling and adjusting a driving motor to drive a steering screw to rotate, so that the steering cylinder and the fixed cylinder axially rotate to drive the vehicle body to axially rotate;

adjusting the head of the vehicle body to a proper position;

and controlling the driving hydraulic cylinder to enable the supporting seat to be separated from the ground.

7. The intelligent steering control method for the crawler type elevator according to claim 6, wherein in the step of controlling the driving hydraulic cylinder so that the supporting base is disengaged from the ground,

the driving hydraulic cylinder drives the telescopic hydraulic rod to contract to drive the stabilizing support rod, the fixed cylinder, the steering cylinder and the support seat to move in opposite directions, so that the vehicle body is in contact with the ground.

Technical Field

The invention relates to the technical field of crawler elevators, in particular to an intelligent steering control method and device for a crawler elevator.

Background

The crawler-type lifter is special equipment for high-altitude operation with wide application. The shearing fork mechanical structure of the lifting platform has higher stability, a wide operation platform and higher bearing capacity, and enables the aerial work range to be larger and the lifting platform to be suitable for simultaneous operation of multiple persons.

The angle of adjustment constantly is needed when carrying out the operation to crawler-type lift to satisfy jacking equipment and can deliver to the construction position smoothly, however when narrow and small space operation, crawler-type lift is difficult to turn to in situ and turn around, thereby needs crawler-type lift to carry out long distance and go back and fall back and then carry out the position adjustment again, so influence the efficiency of construction.

Disclosure of Invention

The invention aims to provide an intelligent steering control method and an intelligent steering control device for a crawler type elevator, and aims to solve the technical problem that in the prior art, when the crawler type elevator works in a narrow space, the crawler type elevator is difficult to steer in place and turn around, so that the crawler type elevator needs to be rewound after running for a long distance and then to be subjected to position adjustment, and the construction efficiency is influenced.

In order to achieve the purpose, the intelligent steering control device for the crawler type elevator comprises a vehicle body, crawler wheels and a support assembly; the crawler wheels are rotatably connected with the vehicle body and are positioned on one side of the vehicle body; the support assembly comprises a telescopic hydraulic rod, a driving hydraulic cylinder, a stable support rod, an adjusting member and a stable member, the telescopic hydraulic rod is fixedly connected with the vehicle body and is positioned on one side of the vehicle body close to the crawler wheels, the driving hydraulic cylinder is fixedly connected with the vehicle body and is positioned on one side of the vehicle body close to the telescopic hydraulic rod, the stable support rod is fixedly connected with the telescopic hydraulic rod and is positioned at one end of the telescopic hydraulic rod far away from the vehicle body, and the stable member is rotatably connected with the stable support rod, is rotatably connected with the telescopic hydraulic rod and is positioned on one side of the stable support rod close to the telescopic hydraulic rod; the adjusting component comprises a fixed cylinder, a steering cylinder, a supporting seat, a steering screw and an adjusting driving motor, the fixed cylinder is fixedly connected with the stable supporting rod, and is positioned at one end of the stable support rod far away from the telescopic hydraulic rod, the steering cylinder is rotationally connected with the fixed cylinder, and is positioned at one side of the fixed cylinder far away from the stable supporting rod, the supporting seat is fixedly connected with the steering cylinder, and is positioned at one side of the steering cylinder far away from the fixed cylinder, the steering screw is rotationally connected with the fixed cylinder, and is fixedly connected with the steering cylinder and is positioned at one side of the steering cylinder close to the fixed cylinder, the adjusting driving motor is fixedly connected with the fixed cylinder, and the output shaft of the adjusting driving motor is fixedly connected with the steering screw rod.

The stabilizing member comprises a first inclined pull rod and a second inclined pull rod, one end of the first inclined pull rod is rotatably connected with the stabilizing support rod, is in sliding connection with the fixed cylinder and is positioned on one side, close to the fixed cylinder, of the stabilizing support rod; one end of the second inclined pull rod is rotatably connected with the stable support rod, the other end of the second inclined pull rod is rotatably connected with the telescopic hydraulic rod, and the second inclined pull rod is located on one side, close to the first inclined pull rod, of the stable support rod.

The telescopic hydraulic rod comprises a supporting cylinder and a telescopic cylinder, the supporting cylinder is fixedly connected with the vehicle body, is rotatably connected with the first diagonal pull rod and is positioned between the vehicle body and the stable supporting rod; the telescopic cylinder is connected with the supporting cylinder in a sliding mode, is fixedly connected with the stabilizing support rod and is located between the supporting cylinder and the stabilizing support rod.

The stabilizing component further comprises a sliding guide rail, the sliding guide rail is fixedly connected with the fixed cylinder, is in sliding connection with the first inclined pull rod, and is positioned on one side, close to the first inclined pull rod, of the fixed cylinder.

The stabilizing member further comprises a hydraulic support rod, one end of the hydraulic support rod is rotatably connected with the first inclined pull rod, the other end of the hydraulic support rod is rotatably connected with the second inclined pull rod, and the hydraulic support rod is located between the first inclined pull rod and the second inclined pull rod.

The adjusting component also comprises a guide ring and an annular guide rail, wherein the guide ring is fixedly connected with the steering cylinder and is positioned on one side of the steering cylinder close to the fixed cylinder; the annular guide rail is fixedly connected with the fixed cylinder, is rotatably connected with the guide ring, and is positioned on one side, close to the guide ring, of the fixed cylinder.

The automobile body is provided with a containing groove, and the containing groove is located on one side, close to the adjusting driving motor, of the automobile body and matched with the adjusting driving motor.

The invention also comprises an intelligent steering control method of the crawler-type lifter, which comprises the following steps:

stopping the vehicle body stably, and controlling the driving hydraulic cylinder to extend out of the telescopic hydraulic rod;

the telescopic hydraulic rod drives the stable support rod, the fixed cylinder, the steering cylinder and the support seat to move towards the ground until the support seat is contacted with the ground;

controlling and adjusting a driving motor to drive a steering screw to rotate, so that the steering cylinder and the fixed cylinder axially rotate to drive the vehicle body to axially rotate;

adjusting the head of the vehicle body to a proper position;

and controlling the driving hydraulic cylinder to enable the supporting seat to be separated from the ground.

Wherein, in the process of controlling the driving hydraulic cylinder to separate the supporting seat from the ground,

the driving hydraulic cylinder drives the telescopic hydraulic rod to contract to drive the stabilizing support rod, the fixed cylinder, the steering cylinder and the support seat to move in opposite directions, so that the vehicle body is in contact with the ground.

According to the intelligent steering control method and the intelligent steering control device for the crawler-type lifter, the driving hydraulic cylinder is controlled to extend out of the telescopic hydraulic rod, the telescopic hydraulic rod drives the stable support rod to vertically move, meanwhile, the fixed cylinder, the steering cylinder and the support seat move towards the ground until the support seat is in contact with the ground, the vehicle body is lifted upwards, then the adjusting and driving motor is controlled to drive the steering screw rod to rotate, the steering cylinder and the fixed cylinder are driven to axially rotate, the vehicle body is axially rotated, the direction of the head of the vehicle body is changed, the vehicle body can be quickly steered, and construction efficiency is prevented from being delayed due to return along the original path.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a vehicle body of the invention.

Fig. 2 is a schematic view of the structure of the telescopic hydraulic rod of the present invention.

Fig. 3 is a schematic view of the mounting structure of the driving cylinder of the present invention.

Fig. 4 is a schematic view of the structure of the adjustment member of the present invention.

Fig. 5 is a schematic structural view of the stabilizing member of the present invention.

Fig. 6 is a schematic view of a connection structure of a steering screw and a steering cylinder of the present invention.

FIG. 7 is a flow chart of a method of intelligent steering control of a crawler lift of the present invention.

In the figure: the device comprises a vehicle body 1, a track wheel 2, a support assembly 3, an 11-accommodating groove, a telescopic hydraulic rod 31, a driving hydraulic cylinder 32, a stable supporting rod 33, an adjusting component 34, a stable component 35, a crawler elevator intelligent steering control device 100, a supporting cylinder 311, a telescopic cylinder 312, a fixed cylinder 341, a steering cylinder 342, a supporting seat 343, a steering screw 344, an adjusting driving motor 345, a guide ring 346, an annular guide rail 347, a first inclined pull rod 351, a second inclined pull rod 352, a sliding guide rail 353 and a hydraulic supporting rod 354.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 6, the invention provides an intelligent steering control device 100 for a crawler elevator, comprising a vehicle body 1, crawler wheels 2 and a support assembly 3; the crawler wheel 2 is rotatably connected with the vehicle body 1 and is positioned on one side of the vehicle body 1; the support assembly 3 comprises a telescopic hydraulic rod 31, a driving hydraulic cylinder 32, a stable support rod 33, an adjusting member 34 and a stable member 35, the telescopic hydraulic rod 31 is fixedly connected with the vehicle body 1 and is positioned at one side of the vehicle body 1 close to the track wheels 2, the driving hydraulic cylinder 32 is fixedly connected with the vehicle body 1 and is positioned at one side of the vehicle body 1 close to the telescopic hydraulic rod 31, the stable support rod 33 is fixedly connected with the telescopic hydraulic rod 31 and is positioned at one end of the telescopic hydraulic rod 31 far away from the vehicle body 1, and the stable member 35 is rotatably connected with the stable support rod 33 and is rotatably connected with the telescopic hydraulic rod 31 and is positioned at one side of the stable support rod 33 close to the telescopic hydraulic rod 31; the adjusting member 34 includes a fixed cylinder 341, a turning cylinder 342, a supporting seat 343, a turning screw 344 and an adjusting driving motor 345, the fixed cylinder 341 is fixedly connected to the stable supporting rod 33 and is located at one end of the stable supporting rod 33 away from the telescopic hydraulic rod 31, the turning cylinder 342 is rotatably connected to the fixed cylinder 341 and is located at one side of the fixed cylinder 341 away from the stable supporting rod 33, the supporting seat 343 is fixedly connected to the turning cylinder 342 and is located at one side of the turning cylinder 342 away from the fixed cylinder 341, the turning screw 344 is rotatably connected to the fixed cylinder 341 and is fixedly connected to the turning cylinder 342 and is located at one side of the turning cylinder 342 close to the fixed cylinder 341, the adjusting driving motor 345 is fixedly connected to the fixed cylinder 341 and is located at one side of the fixed cylinder 341 close to the turning screw 344, an output shaft of the adjusting drive motor 345 is fixedly connected with the steering screw 344.

Further, referring to fig. 2, the telescopic hydraulic rod 31 includes a support cylinder 311 and a telescopic cylinder 312, the support cylinder 311 is fixedly connected to the vehicle body 1, rotatably connected to the first diagonal draw bar 351, and located between the vehicle body 1 and the stable support rod 33; the telescopic cylinder 312 is slidably connected to the supporting cylinder 311, is fixedly connected to the stabilizing support rod 33, and is located between the supporting cylinder 311 and the stabilizing support rod 33.

In the embodiment, the vehicle body 1 is a rectangular body, four ends of the bottom of the vehicle body 1 are provided with driving wheels, the driving wheels are provided with two walking crawlers which are respectively arranged on two sides of the vehicle body 1 to drive the movement of the vehicle body 1, a telescopic bracket is arranged on the top of the vehicle body 1, and an operation platform is arranged on the top of the telescopic bracket; the driving hydraulic cylinders 32 are installed inside the car body 1, the number of the driving hydraulic cylinders 32 may be two or more than two, and the driving hydraulic cylinders are installed on the front and rear sides of the car body 1, the telescopic hydraulic rods 31 are installed at the output ends of the driving hydraulic cylinders 32, each telescopic hydraulic rod 31 includes a supporting cylinder 311 and a telescopic cylinder 312, the fixed cylinder 341 is installed at the bottom of the car body 1 in a threaded manner and is driven by hydraulic oil with the supporting cylinder 311, the stabilizing support rod 33 is installed at the free end of the supporting cylinder 311 in a threaded manner, the stabilizing support rod 33 is horizontally disposed, the fixed cylinder 341 is installed at one end of the stabilizing support rod 33 far away from the supporting cylinder 311 in a threaded manner, the fixed cylinder 341 is a cylinder, and the stabilizing support rods 33 are installed on the two sides of the outer side surface of the fixed cylinder 341 in opposite directions, the number of the stabilizing support rods 33 is two, or may be other numbers larger than two, and the fixing cylinder 341 is supported by the stabilizing support rods 33; the steering cylinder 342 is rotatably mounted at the bottom of the fixed cylinder 341, the support seat 343 is mounted at the bottom of the steering cylinder 342 through threads, and the support seat 343 is a circular metal plate and has good support stability; the end of the turning screw 344 is fixed to the turning cylinder 342 by a screw, and the other end of the turning screw passes through the fixed cylinder 341 and is fixed to the output end of the adjustment driving motor 345 by a screw, thereby controlling the driving hydraulic cylinder 32 to extend out of the telescopic hydraulic rod 31, the telescopic hydraulic rod 31 drives the stable supporting rod 33 to move vertically, meanwhile, the fixed cylinder 341, the steering cylinder 342 and the support base 343 move toward the ground until the support base 343 contacts the ground, the vehicle body 1 is lifted upward, then the adjusting driving motor 345 is controlled to drive the turning screw 344 to rotate, so as to drive the turning cylinder 342 and the fixed cylinder 341 to axially rotate, therefore, the vehicle body 1 rotates axially, the direction of the head of the vehicle body 1 is changed, the vehicle body 1 can be quickly steered, and delay of construction efficiency due to return along the original path is avoided.

Further, referring to fig. 5, the stabilizing member 35 includes a first diagonal draw bar 351 and a second diagonal draw bar 352, one end of the first diagonal draw bar 351 is rotatably connected to the stabilizing support bar 33, is slidably connected to the fixed cylinder 341, and is located at one side of the stabilizing support bar 33 close to the fixed cylinder 341; one end of the second diagonal tie rod 352 is rotatably connected to the stabilizing support rod 33, and the other end of the second diagonal tie rod is rotatably connected to the telescopic hydraulic rod 31 and is located at one side of the stabilizing support rod 33 close to the first diagonal tie rod 351.

In this embodiment, the centers of the first diagonal tension rod 351 and the second diagonal tension rod 352 are connected by a rotating shaft, one end of the first diagonal tension rod 351 and the stable support rod 33 are rotated by the rotating shaft, the other end of the first diagonal tension rod 351 and the fixed cylinder 341 are rotated by the rotating shaft, one end of the second diagonal tension rod 352 and one side end of the stable support rod 33 away from the first diagonal tension rod 351 are rotated by the rotating shaft, the other end of the second diagonal tension rod 352 and the support cylinder 311 of the telescopic hydraulic rod 31 are rotated by the rotating shaft, so that the stable support rod 33, the fixed cylinder 341 and the telescopic hydraulic rod 31 are supported by the first diagonal tension rod 351 and the second diagonal tension rod 352, and the vehicle body 1 is supported more stably during the lifting process.

Further, referring to fig. 5, the stabilizing member 35 further includes a sliding guide 353, and the sliding guide 353 is fixedly connected to the fixed cylinder 341, slidably connected to the first diagonal tension rod 351, and located at a side of the fixed cylinder 341 close to the first diagonal tension rod 351.

In the present embodiment, the slide guide 353 is screw-fitted to the outer surface of the fixed cylinder 341, the end of the first diagonal tension rod 351 slides and rotates with the slide guide 353, and the end of the first diagonal tension rod 351 is rotatably supported by the movement guide, so that the movement of the first diagonal tension rod 351 is more stable.

Further, referring to fig. 5, the stabilizing member 35 further includes a hydraulic support rod 354, one end of the hydraulic support rod 354 is rotatably connected to the first diagonal tie bar 351, and the other end of the hydraulic support rod 354 is rotatably connected to the second diagonal tie bar 352 and is located between the first diagonal tie bar 351 and the second diagonal tie bar 352.

In this embodiment, two ends of the hydraulic support rod 354 are respectively rotatably mounted on the side surfaces of the first diagonal tie rod 351 and the second diagonal tie rod 352, and the first diagonal tie rod 351 and the second diagonal tie rod 352 are supported by the hydraulic support rod 354 during the rotation process, so that the first diagonal tie rod 351 and the second diagonal tie rod 352 are better in supporting effect.

Further, referring to fig. 4, the adjusting member 34 further includes a guiding ring 346 and an annular guiding rail 347, wherein the guiding ring 346 is fixedly connected to the steering cylinder 342 and is located on a side of the steering cylinder 342 close to the fixed cylinder 341; the annular guide rail 347 is fixedly connected to the fixed cylinder 341, rotatably connected to the guide ring 346, and located on a side of the fixed cylinder 341 close to the guide ring 346.

In this embodiment, the guide ring 346 is a circular ring and is screw-mounted around the steering cylinder 342 and close to the fixed cylinder 341, the annular guide 347 is screw-mounted on the top of the fixed cylinder 341, and the slide rail of the annular guide 347 is engaged with the guide ring 346 to guide and support the rotation of the steering cylinder 342 on the fixed cylinder 341, so that the rotation of the steering cylinder 342 and the fixed cylinder 341 is more stable.

Further, referring to fig. 4, the vehicle body 1 has an accommodating groove 11, and the accommodating groove 11 is located at a side of the vehicle body 1 close to the adjustment driving motor 345 and is matched with the adjustment driving motor 345.

In the present embodiment, the housing groove 11 is located at the bottom of the vehicle body 1, and the adjustment drive motor 345, the fixed cylinder 341, and the steering cylinder 342 are housed when the vehicle body 1 travels normally.

Referring to fig. 7, an intelligent steering control method for a crawler elevator includes the following steps:

s801: the vehicle body 1 is stopped stably, and the driving hydraulic cylinder 32 is controlled to extend out of the telescopic hydraulic rod 31;

s802: the telescopic hydraulic rod 31 drives the stable support rod 33, the fixed cylinder 341, the steering cylinder 342 and the support seat 343 to move towards the ground until the support seat 343 is contacted with the ground;

s803: controlling and adjusting a driving motor 345 to drive a steering screw 344 to rotate, so that the steering cylinder 342 and the fixed cylinder 341 axially rotate to drive the vehicle body 1 to axially rotate;

s804: adjusting the head of the vehicle body 1 to a proper position;

s805: the driving hydraulic cylinder 32 drives the telescopic hydraulic rod 31 to contract, so as to drive the stable support rod 33, the fixed cylinder 341, the steering cylinder 342 and the support base 343 to move in opposite directions, so that the vehicle body 1 is in contact with the ground.

In this embodiment, the driving hydraulic cylinder 32 is controlled to extend out of the telescopic hydraulic rod 31, the telescopic hydraulic rod 31 drives the stable support rod 33 to move vertically, and meanwhile, the fixed cylinder 341, the steering cylinder 342 and the support seat 343 move towards the ground until the support seat 343 contacts with the ground to lift the vehicle body 1 upwards, and then the adjustment driving motor 345 is controlled to drive the steering screw 344 to rotate to drive the steering cylinder 342 and the fixed cylinder 341 to rotate axially, so that the vehicle body 1 rotates axially, the direction of the vehicle head of the vehicle body 1 is changed, the vehicle body 1 can be steered quickly, and the situation that the construction efficiency is delayed due to the fact that the vehicle returns along the original path is avoided.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.