Connecting rod steering mechanism

Abstract

The utility model discloses a connecting rod steering mechanism which comprises a rotating seat, a hydraulic cylinder is hinged in the rotating seat, a telescopic rod is arranged in the hydraulic cylinder, the connecting rod steering mechanism is characterized by further comprising a steering wheel and a driven wheel, one end of the telescopic rod is hinged with the steering wheel, and the other end of the telescopic rod is hinged with the driven wheel. A connecting rod is further hinged between the steering wheel and the driven wheel, the connecting rod steering mechanism further comprises a frame, the steering wheel and the driven wheel are connected with the frame in a running fit mode, the connecting rod steering mechanism works through a hydraulic cylinder to drive a telescopic rod to stretch out and draw back, and after the telescopic rod is hinged to a first connecting plate, a first wheel cover rotates around a fixing disc; and under the action of a second connecting plate, a connecting rod and a third connecting plate, a second wheel cover also rotates around a fixing disc on the upper side of the second wheel cover, and the function of simultaneously steering the power wheel and the driven wheel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power vehicle steering equipment, and particularly relates to a connecting rod steering mechanism. Background Art

[0002] In the field of AGV power vehicles, the driving wheels and driven wheels in the power vehicle mostly have the same layout as traditional automobiles. Generally, a set of steering wheels and multiple sets of driving wheels are provided, and then a differential and the like need to be set to realize the movement of the traditional AGV transporter. In actual situations, there will be cases where the vehicle body is long, the vehicle model is large, and it is inconvenient to turn and move. Since the traditional power vehicle can only move forward with power around a set of steering wheels, the driving wheels cannot assist in steering, which results in too large a turning radius and cannot adjust the driving wheels and steering wheels to the same angle. Therefore, it is very necessary to improve the steering structure. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a connecting rod steering mechanism, which can solve the problems in the above-mentioned prior art.

[0004] The utility model is realized by the following technical solutions: A connecting rod steering mechanism of the utility model includes a rotating seat, a hydraulic cylinder is hinged in the rotating seat, a telescopic rod is arranged in the hydraulic cylinder, and it is characterized in that it further includes a steering wheel and a driven wheel, one end of the telescopic rod is hinged with the steering wheel, a connecting rod is also hinged between the steering wheel and the driven wheel, and a frame is further included, and the steering wheel and the driven wheel are rotationally and cooperatively connected with the frame.

[0005] In a further technical solution, the steering wheel includes a first wheel cover, the driven wheel includes a second wheel cover, the telescopic rod is hinged with the first wheel cover, and the connecting rod is hinged with the first wheel cover and the second wheel cover.

[0006] In a further technical solution, wheels are rotatably arranged in the first wheel cover and the second wheel cover.

[0007] In a further technical solution, a reducer is arranged on one side of the first wheel cover, a motor is power-connected to one side of the reducer, an output end of the reducer is power-connected to a rotating shaft, the rotating shaft passes through the wheel, and the rotating shaft is power-connected to the wheel.

[0008] In a further technical solution, a first connecting plate is arranged on one side of the first wheel cover, a second connecting plate is arranged on the other side of the first wheel cover, the telescopic rod is hinged with the first connecting plate, and the connecting rod is hinged with the second connecting plate.

[0009] Further technical solution: A third connecting plate is provided on one side of the second shroud, and the connecting rod is hinged to the third connecting plate.

[0010] Further technical solution: The second connecting plate is arranged at the front side position of the first shroud, and the third connecting plate is arranged at the rear side position of the second shroud.

[0011] Further technical solution: A rotating disc is provided at the top of the first shroud and the second shroud. A fixed disc is rotatably arranged inside the rotating disc, and the frame is fixedly connected with the fixed disc.

[0012] Further technical solution: It further includes a hydraulic pump. A first pipe and a second pipe are communicated on one side of the hydraulic pump, and the first pipe and the second pipe are respectively communicated with two liquid inlet ends of the hydraulic cylinder.

[0013] Further technical solution: There are two sets of the steering wheels, driven wheels, rotating seats, hydraulic cylinders, telescopic rods and connecting rods, and the two sets are arranged in a mirror image. The steering wheels are respectively arranged at the diagonal positions of the frame, and the driven wheels are arranged at the other diagonal position of the frame.

[0014] The beneficial effects of the present utility model are as follows: First, through the connecting rod steering mechanism, a first connecting plate and a second connecting plate are respectively arranged on both sides of the first shroud, and a third connecting plate is arranged on one side of the second shroud. And in specific implementation, the second connecting plate can be arranged at the front side position of the first shroud, and the third connecting plate can be arranged at the rear side position of the second shroud, so that when the first shroud and the second shroud drive the driving wheel and the driven wheel to rotate around their rotating shafts respectively, the phenomenon that the connecting rod interferes with the bodies of the first shroud and the second shroud can be avoided, and the height of the connecting rod is higher than that of the motor and the reducer, which can also avoid this situation.

[0015] Second, the driving wheel and the driven wheel are hinged through the connecting rod. When the hydraulic cylinder and the telescopic rod push the driving wheel to rotate, the driven wheel can be driven to rotate in the same direction through the connecting rod, realizing an efficient steering function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present utility model is described in detail by the following specific embodiments and accompanying drawings.

[0017] Figure 1 It is a schematic structural diagram of an actual installation of a connecting rod steering mechanism of the present utility model;

[0018] Figure 2 For Figure 1 the schematic diagram of the oil circuit layout in

[0019] Figure 3 ForFigure 1 Schematic diagram of the middle connecting rod structure;

[0020] Figure 4 for Figure 1 Schematic diagram of the middle link structure after steering;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the middle power wheel from a top view;

[0022] Figure 6 for Figure 5 Schematic diagram of the front structure of Zhongdongli;

[0023] Figure 7 for Figure 6 Schematic diagram of the AA direction;

[0024] Figure 8 for Figure 1 A schematic diagram of the structure of the driven wheel from a top view;

[0025] In the figure, there are mounting holes 11, a frame 12, a telescopic rod 13, a first tube 14, a hydraulic cylinder 15, a rotating seat 16, a second tube 17, a hydraulic pump 18, a first connecting plate 21, a first wheel cover 22, a second connecting plate 23, a connecting rod 24, a third connecting plate 25, a second wheel cover 26, a rotating disk 31, a fixed disk 32, a motor 33, a reducer 34, a wheel 35, and a rotating shaft 41. DETAILED DESCRIPTION

[0026] like Figures 1 - 8 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship are consistent. The utility model is a connecting rod steering mechanism, including a rotating seat 16, a hydraulic cylinder 15 is hingedly arranged in the rotating seat 16, a telescopic telescopic rod 13 is arranged in the hydraulic cylinder 15, and also includes a steering wheel and a driven wheel. One end of the telescopic rod 13 is hingedly arranged with the steering wheel, and a connecting rod 24 is also hingedly arranged between the steering wheel and the driven wheel.

[0027] Advantageously, the steering wheel includes a first wheel cover 22 , the driven wheel includes a second wheel cover 26 , the telescopic rod 13 is hingedly arranged on the first wheel cover 22 , and the connecting rod 24 is hingedly arranged on the first wheel cover 22 and the second wheel cover 26 .

[0028] Advantageously, the steering wheel includes a first wheel cover 22, a first connecting plate 21 is provided on one side of the first wheel cover 22, a second connecting plate 23 is provided on the other side of the first wheel cover 22, the telescopic rod 13 is hinged to the first connecting plate 21, the connecting rod 24 is hinged to the second connecting plate 23, the driven wheel includes a second wheel cover 26, a third connecting plate 25 is provided on one side of the second wheel cover 26, and the connecting rod 24 is hinged to the third connecting plate 25.

[0029] Advantageously, the second connecting plate 23 can be arranged at the front side position of the first wheel cover 22, and the third connecting plate 25 can be arranged at the rear side position of the second wheel cover 26, so that when the first wheel cover 22 and the second wheel cover 26 drive the driving wheel and the driven wheel to rotate around their rotating shafts respectively, the interference between the connecting rod 24 and the bodies of the first wheel cover 22 and the second wheel cover 26 can be avoided.

[0030] Advantageously, wheels 35 are rotatably arranged inside the first wheel cover 22 and the second wheel cover 26.

[0031] Advantageously, a speed reducer 34 is provided on one side of the first wheel cover 22, a motor 33 is power-connected to one side of the speed reducer 34, an output end of the speed reducer 34 is power-connected to a rotating shaft 41, the rotating shaft 41 passes through the wheel 35, and the rotating shaft 41 is power-connected to the wheel 35.

[0032] Advantageously, a rotating disk 31 is provided at the tops of the first wheel cover 22 and the second wheel cover 26, a fixed disk 32 is rotatably arranged inside the rotating disk 31, and a frame 12 is further included, and the frame 12 is fixedly and cooperatively connected to the fixed disk 32.

[0033] Advantageously, a plurality of mounting holes 11 are provided inside the frame 12, and the fixed disk 32 is fixedly installed through the mounting holes 11.

[0034] Advantageously, a hydraulic pump 18 is further included, a first pipe 14 and a second pipe 17 are communicated with one side of the hydraulic pump 18, and the first pipe 14 and the second pipe 17 are respectively communicated with two liquid inlet ends of the hydraulic cylinder 15 to realize the function of driving the telescopic rod 13 to extend and retract by the hydraulic cylinder 15.

[0035] In the first embodiment, two sets of link steering mechanisms are provided, and the two sets are arranged in a mirror image, that is, the steering wheels are respectively arranged at the diagonal positions of the frame 12, and the driven wheels are also arranged at the other diagonal position of the frame 12.

[0036] Advantageously, the rotating seats 16 are installed on the left and right sides of the frame 12, and the hydraulic cylinders 15 on the left and right sides extend the telescopic rods 13 towards the rear side and the front side respectively.

[0037] Advantageously, two sets of the first pipe 14 and the second pipe 17 are provided inside the hydraulic pump 18, and the first pipe 14 and the second pipe 17 are communicated with the hydraulic cylinders 15 on both sides.

[0038] During actual setting, a storage battery is provided in the frame 12 to supply power to the motor 33 so that the motor 33 can perform power transmission.

[0039] After the link steering mechanism works through the hydraulic cylinder 15, it drives the telescopic rod 13 to expand and contract. After the telescopic rod 13 is hinged to the first connecting plate 21, the first wheel cover 22 rotates around the fixed disk 32. Under the action of the second connecting plate 23, the link 24 and the third connecting plate 25, the second wheel cover 26 also rotates around the fixed disk 32 on its upper side, realizing the simultaneous steering function of the driving wheel and the driven wheel. The specific steering state can be referred to in the attached Figure 4 .

[0040] After the hydraulic pump 18 works, it controls the hydraulic cylinder 15 to drive the telescopic rod 13 to expand and contract through the first pipe 14 and the second pipe 17.

[0041] After the motor 33 works, it drives the reducer 34 to work. The output end of the reducer 34 drives the rotating shaft 41 and the wheel 35 to rotate. In the driven wheel, the wheel 35 can rotate inside the second wheel cover 26. Due to its driven function, it does not need to be driven by the motor 33 and the reducer 34.

[0042] During specific implementation, if two sets of mirror-image link steering mechanisms are provided in the frame 12, the driving wheels and the driven wheels in the two sets of link steering mechanisms can rotate in the same direction to achieve crab-like movement; or the two sets of link steering mechanisms can rotate in opposite directions, so that the radius of the power vehicle during turning is smaller.

[0043] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A connecting rod steering mechanism, comprising a rotating seat (16), a hydraulic cylinder (15) is hingedly arranged in the rotating seat (16), a telescopic telescopic rod (13) is arranged in the hydraulic cylinder (15), characterized in that: It also includes a steering wheel and a driven wheel, one end of the telescopic rod (13) is hingedly arranged on the steering wheel, a connecting rod (24) is also hingedly arranged between the steering wheel and the driven wheel, and it also includes a frame (12), and the steering wheel and the driven wheel are rotatably connected to the frame (12).

2. A connecting rod steering mechanism according to claim 1, characterized in that: The steering wheel comprises a first wheel cover (22), the driven wheel comprises a second wheel cover (26), the telescopic rod (13) is hingedly arranged with the first wheel cover (22), and the connecting rod (24) is hingedly arranged with the first wheel cover (22) and the second wheel cover (26).

3. A connecting rod steering mechanism according to claim 2, characterized in that: Wheels (35) are rotatably arranged inside the first wheel cover (22) and the second wheel cover (26).

4. A connecting rod steering mechanism according to claim 3, characterized in that: A reducer (34) is provided on one side of the first wheel cover (22), and a motor (33) is provided on one side of the reducer (34) in power connection, and a rotating shaft (41) is provided on the output end of the reducer (34) in power connection, and the rotating shaft (41) passes through the wheel (35), and the rotating shaft (41) is provided in power connection with the wheel (35).

5. The connecting rod steering mechanism according to claim 2, characterized in that: A first connecting plate (21) is provided on one side of the first wheel cover (22), and a second connecting plate (23) is provided on the other side of the first wheel cover (22); the telescopic rod (13) is hingedly connected to the first connecting plate (21), and the connecting rod (24) is hingedly connected to the second connecting plate (23).

6. A connecting rod steering mechanism according to claim 5, characterized in that: A third connecting plate (25) is provided on one side of the second wheel cover (26), and the connecting rod (24) and the third connecting plate (25) are hingedly arranged.

7. A connecting rod steering mechanism according to claim 6, characterized in that: The second connecting plate (23) is arranged at the front side of the first wheel cover (22), and the third connecting plate (25) is arranged at the rear side of the second wheel cover (26).

8. The connecting rod steering mechanism according to claim 2, characterized in that: A rotating disk (31) is arranged on the top of the first wheel cover (22) and the second wheel cover (26), a fixed disk (32) is arranged to rotate inside the rotating disk (31), and the frame (12) is fixedly connected to the fixed disk (32).

9. The connecting rod steering mechanism according to claim 1, characterized in that: It also comprises a hydraulic pump (18), one side of which is connected to a first pipe (14) and a second pipe (17), and the first pipe (14) and the second pipe (17) are respectively connected to two liquid inlet ends of the hydraulic cylinder (15).

10. A connecting rod steering mechanism according to any one of claims 1 to 9, characterized in that: The steering wheel, driven wheel, rotating seat (16), hydraulic cylinder (15), telescopic rod (13) and connecting rod (24) are arranged in two groups, and the two groups are arranged in a mirror image. The steering wheel is arranged at a diagonal position of the frame (12), and the driven wheel is arranged at another diagonal position of the frame (12).

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