Steering mechanism of automatic driving robot

Abstract

The utility model discloses an automatic driving robot steering mechanism which comprises a steering driving mechanism fixing support fixed in an automobile, a steering driving mechanism is arranged on the steering driving mechanism fixing support, and an output shaft of the steering driving mechanism is in transmission connection with a steering wheel claw disc right opposite to a steering wheel. And the steering wheel claw disc is connected with a steering wheel. An original vehicle does not need to be modified, the system rigidity is good, the control precision is high, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the field of automatic driving, and in particular to a steering mechanism of an automatic driving robot. Background Art

[0002] At present, unmanned driving, as a key technology and research direction of intelligent vehicles, has attracted great attention at home and abroad, and has achieved certain research results. For unmanned vehicles, realizing automatic steering is an important condition for their normal driving.

[0003] The current market application of automatic driving steering wheels requires the original vehicle structure to be changed, which will affect the original vehicle qualification announcement, causing great difficulties for the later vehicle after-sales warranty, and the installation is very troublesome. In addition, the system stiffness is not guaranteed satisfactorily, which affects the control accuracy and thus the automatic driving performance.

[0004] In addition, the existing autonomous driving steering wheel is not a modular structure, and its disassembly and assembly are inconvenient. Utility Model Content

[0005] In view of the above problems, the utility model provides a new steering mechanism of an autonomous driving robot to solve the problem in the prior art that the original vehicle structure needs to be changed.

[0006] A steering mechanism for an autonomous driving robot, characterized in that it includes a steering drive mechanism fixing bracket fixed inside a car, the steering drive mechanism is arranged on the steering drive mechanism fixing bracket, the output shaft of the steering drive mechanism is transmission-connected to a steering wheel claw facing a steering wheel, driving the steering wheel claw to rotate synchronously, and the steering wheel claw is connected to the steering wheel.

[0007] Preferably, the steering wheel claw plate is detachably connected to the steering wheel, and the steering wheel claw plate is provided with a lock for connecting the steering wheel handle. The lock structure is adopted to facilitate disassembly and assembly. Further, the lock includes a U-shaped fixed block and an arc-shaped movable block, the U-shaped fixed block is adapted to the steering wheel handle, one side of the U-shaped fixed block is connected to the steering wheel claw plate, and the other side of the U-shaped fixed block is rotatably connected to one side of the arc-shaped movable block; when the arc-shaped movable block bypasses the steering wheel handle and clamps the steering wheel handle, the arc-shaped movable block is fixed by the locking member.

[0008] Preferably, the steering wheel claw plate includes a claw plate connecting flange, a connecting rod swing arm and a lock buckle, the center of the claw plate connecting flange is fixedly connected to the output shaft of the steering drive mechanism, a plurality of connecting rod swing arms are evenly distributed on the circumference of the claw plate connecting flange, the connecting rod swing arm includes a first swing arm and a second swing arm, and one end of the first swing arm is rotatably connected to the claw plate connecting flange, the other end of the first swing arm is rotatably connected to one end of the second swing arm, and the other end of the second swing arm is respectively connected to a lock buckle. The connecting rod swing arm can be folded and extended to adapt to steering wheels of different diameters, and has high versatility.

[0009] Preferably, the steering drive mechanism fixing bracket includes a main body support for fixedly connecting to the automobile chassis, and a steering fixing support arranged on the main body support for installing the steering drive mechanism. The steering fixing support is a hollow structure, and the output shaft of the steering drive mechanism passes through the steering fixing support and is connected to the steering wheel claw.

[0010] Preferably, the steering drive mechanism is installed on a steering drive mechanism fixing bracket directly facing the steering wheel.

[0011] Beneficial effects of the utility model:

[0012] 1. When the utility model is used as a post-installation mechanism, there is no need to modify the original vehicle and it will not affect the original vehicle qualification announcement.

[0013] 2. The utility model can be adapted to steering wheels of different diameters through the steering wheel claw plate, and has high versatility.

[0014] 3. The utility model can adopt a modular structure. By loosening the steering wheel claw to separate the steering wheel claw from the steering wheel, and removing the steering drive mechanism fixing bracket, the entire autonomous driving robot steering mechanism can be removed, which can achieve convenient and quick disassembly and assembly.

[0015] 4. The system of the utility model has good rigidity and high control accuracy, which is conducive to significantly improving the performance of automatic driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of the steering mechanism of the autonomous driving robot.

[0017] Figure 2 Schematic diagram of the steering mechanism of the autonomous driving robot.

[0018] Figure 3 A schematic diagram of a steering wheel claw.

[0019] Figure 4 This is a partial enlarged schematic diagram of the steering wheel claw. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the implementation methods of the present application, not all of the implementation methods; and the structures shown in the accompanying drawings are only schematic and do not represent physical objects. It should be noted that based on these embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0021] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion in this article, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical or equivalent elements in the process, method, article or device including the elements.

[0022] The terms "upper", "lower", "inner", "outer", etc. do not constitute absolute spatial relationship limitations, but are only concepts of relative positions, which can be understood by those skilled in the art.

[0023] See also Figure 1 and 2 , a steering mechanism of an autonomous driving robot mainly includes a steering drive mechanism fixing bracket, a steering drive mechanism and a steering wheel claw plate.

[0024] The steering drive mechanism fixing bracket includes a body support 5 and a steering fixed support 3, both of which are metal structural parts. The body support 5 is fixed inside the car, and the overall structure is located in front of the driver's seat. The bottom of the body support 5 is fixedly connected to the car chassis by bolts. The steering fixed support 3 can be welded to the body support 5 or connected to the body support 5 by bolts. The steering fixed support 3 is a hollow structure to facilitate the output shaft of the steering drive mechanism to pass through. The steering fixed support 3 is located above the steering wheel, and the axis of its hollow part is coaxial with the center line of the steering wheel.

[0025] The steering drive mechanism 4 is installed on the steering fixed support 3 of the steering drive mechanism fixing bracket facing the steering wheel, and the corresponding flange surfaces are fixedly connected by bolts. The steering drive mechanism 4 includes but is not limited to a motor and a reduction mechanism. The output shaft of the steering drive mechanism 4 passes through the hollow structure of the steering fixed support 3 and is connected to the steering wheel claw plate 2.

[0026] The steering wheel claw plate 2 is connected to the steering drive mechanism 4, and the steering wheel claw plate 2 is fixedly assembled on the steering wheel 1, and the steering drive mechanism 4 drives the steering wheel claw plate 2 and the steering wheel 1 to rotate synchronously.

[0027] See also Figure 1-3The steering wheel claw plate 2 is installed facing the steering wheel. The steering wheel claw plate 2 includes a claw plate connecting flange 10, a connecting rod swing arm and a lock buckle 7. The center of the claw plate connecting flange 10 is fixedly connected to the output shaft of the steering drive mechanism. Several groups of connecting rod swing arms are evenly distributed around the claw plate connecting flange 10, and each group of connecting rod swing arms includes a first swing arm 9 and a second swing arm 8. One end of the first swing arm 9 is rotatably connected (hinged) to the claw plate connecting flange 10, and the other end of the first swing arm 9 is rotatably connected (hinged) to one end of the second swing arm 8. The other end of the second swing arm 8 is respectively connected with a lock buckle 7. The connecting rod swing arm can be folded and extended to adapt to steering wheels of different diameters, and has high versatility.

[0028] See also Figure 4 The lock buckle 7 includes a U-shaped fixed block 71 and an arc-shaped movable block 72. The U-shaped fixed block 71 is adapted to the steering wheel handle 11. One side of the U-shaped fixed block 71 is connected to the second swing arm 8, and the other side of the U-shaped fixed block 71 is rotatably connected (hinged) to one side of the arc-shaped movable block 72. When the arc-shaped movable block 72 bypasses the steering wheel handle 11 and clamps the steering wheel handle 11, the arc-shaped movable block 72 is fixed by the locking member. In this embodiment, the locking member includes a locking screw 73 and a screw connecting seat 74. Of course, the lock buckle 7 can also adopt other conventional mechanisms. The lock buckle structure is adopted, which is convenient for disassembly and assembly, and realizes the detachable connection between the steering wheel claw and the steering wheel.

[0029] When the utility model is used as a post-installation mechanism, there is no need to modify the original vehicle and the original vehicle qualification announcement will not be affected.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steering mechanism for an autonomous driving robot, characterized in that: It includes a steering drive mechanism fixing bracket fixed inside the car, the steering drive mechanism is arranged on the steering drive mechanism fixing bracket, the output shaft of the steering drive mechanism is transmission-connected with a steering wheel claw plate facing the steering wheel, driving the steering wheel claw plate to rotate synchronously, and the steering wheel claw plate is connected to the steering wheel.

2. The steering mechanism of the autonomous driving robot according to claim 1, characterized in that: The steering wheel claw plate is detachably connected to the steering wheel, and the steering wheel claw plate is provided with a lock buckle for connecting the steering wheel handle.

3. The steering mechanism of the autonomous driving robot according to claim 2, characterized in that: The lock includes a U-shaped fixed block and an arc-shaped movable block. The U-shaped fixed block is adapted to the steering wheel handle. One side of the U-shaped fixed block is connected to the steering wheel claw plate, and the other side of the U-shaped fixed block is rotatably connected to one side of the arc-shaped movable block. When the arc-shaped movable block passes around the steering wheel handle and clamps the steering wheel handle, the arc-shaped movable block is fixed by the locking piece.

4. The steering mechanism of the autonomous driving robot according to claim 2, characterized in that: The steering wheel claw plate includes a claw plate connecting flange, a connecting rod swing arm and a lock. The center of the claw plate connecting flange is fixedly connected to the output shaft of the steering drive mechanism. A plurality of connecting rod swing arms are evenly distributed around the circumference of the claw plate connecting flange. The connecting rod swing arm includes a first swing arm and a second swing arm. One end of the first swing arm is rotatably connected to the claw plate connecting flange, the other end of the first swing arm is rotatably connected to one end of the second swing arm, and the other end of the second swing arm is respectively connected to the lock.

5. The steering mechanism of the autonomous driving robot according to claim 1, characterized in that: The steering drive mechanism fixing bracket includes a main body support for fixedly connecting to the automobile chassis, and a steering fixing support arranged on the main body support for installing the steering drive mechanism. The steering fixing support is a hollow structure, and the output shaft of the steering drive mechanism passes through the steering fixing support and is connected to the steering wheel claw plate.

6. The steering mechanism of the autonomous driving robot according to claim 1, characterized in that: The steering drive mechanism is installed on the steering drive mechanism fixing bracket directly facing the steering wheel.

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