Front wheel mechanism for three-wheel material scattering vehicle

Abstract

The utility model relates to the technical field of vehicle equipment for livestock breeding, in particular to a front wheel mechanism for a three-wheel scattering vehicle, which comprises wheels, a steering arm, a transmission case and a steering wheel, the top of the steering arm is connected with the transmission case, the side of the steering arm is connected to a wheel shaft of the wheels, and a gear transmission unit and a chain wheel transmission unit are sequentially arranged in the transmission case. A torque amplifier is installed on a rotating shaft of the steering wheel, and the steering wheel is transmitted to the steering arm through the gear transmission unit and the chain wheel transmission unit in sequence so as to drive the wheels to steer. A torque amplifier is designed in the steering mechanism, steering force is transmitted to a steering wheel through gear transmission and chain transmission, and the steering wheel can steer easily and stably.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle equipment for animal husbandry, in particular to a front wheel mechanism for a three-wheeled material spreading vehicle. Background Art

[0002] The feeding site and feeding scale restrictions of livestock breeding power equipment require it to have the characteristics of small size, low cost, small turning radius, and maneuverability. However, there is little technical research on livestock power equipment for small and medium-sized livestock farms.

[0003] The inventors learned that the steering systems of existing small agricultural vehicles are mostly handlebar-type, and a few are steering wheel-type. The handlebar-type steering has no transmission ratio, and the driver's steering force directly acts on the handlebar, and the front wheel is steered by turning the front fork. The vehicle is difficult to control during driving, and the impact force of the road is directly transmitted to the handlebar, which requires a certain amount of strength and skills from the driver; a few steering wheel-type steering models use an open rack and pinion steering mechanism or a worm gear, which to a certain extent solves the problem of difficult steering operation, but the mechanism is complex and unreliable. Summary of the invention

[0004] In order to solve the existing situation that the steering operation is laborious, considering the complexity of the working conditions of the three-wheeled material spreading vehicle, the utility model provides a compact front wheel mechanism for the three-wheeled material spreading vehicle, which can achieve flexible, labor-saving and stable steering. The technical solution adopted by the utility model is as follows:

[0005] A front wheel mechanism for a three-wheeled material spreading vehicle comprises a wheel, a steering arm, a transmission box and a steering wheel, wherein the top of the steering arm is connected to the transmission box, and the side is connected to the wheel axle, a gear transmission unit and a sprocket transmission unit are arranged in sequence in the transmission box, a torque amplifier is installed on the rotating shaft of the steering wheel, and the steering wheel is transmitted to the steering arm via the gear transmission unit and the sprocket transmission unit in sequence, thereby driving the wheel to turn.

[0006] The front wheel mechanism of the three-wheeled material spreading vehicle, the gear transmission unit includes a driving gear, a driven gear and an idler gear, the driving gear is coaxially driven with the steering wheel, and the driving gear and the driven gear are respectively meshed with the idler gear.

[0007] The front wheel mechanism of the three-wheeled material spreading vehicle, the sprocket transmission unit includes a driving sprocket and a driven sprocket, the driven sprocket is coaxially driven with the driven gear, and the lower end of the rotating shaft where the driving sprocket is located is connected to the top of the steering arm.

[0008] The above-mentioned front wheel mechanism for the three-wheeled material-spreading vehicle also includes a limiting mechanism, which includes two steering limiting plates and a steering stop rod, and the steering limiting plates are distributed on the left and right and fixed on the lower support plate, and the lower support plate is located below the transmission box and fixed on the vehicle body, and the steering stop rod is fixed on the top of the steering arm, and the steering limiting plates are used to limit the rotation range of the steering stop rod with the steering arm.

[0009] The beneficial effects of the utility model are:

[0010] 1) A torque amplifier is designed in the steering mechanism, and the steering force is transmitted to the steering wheel through gear transmission and chain transmission, so that the steering wheel can achieve easy and stable steering.

[0011] 2) A steering limit mechanism is designed on the steering arm to limit the front wheel steering within a certain range to avoid the occurrence of steering lock and rollover hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0013] Figure 2 A side view schematic diagram of an embodiment of the utility model;

[0014] Figure 3 for Figure 1 Schematic diagram of the middle AA section;

[0015] Figure 4 for Figure 1 Schematic diagram of the cross section in the middle BB direction;

[0016] Figure 5 for Figure 1 Middle CC section view;

[0017] Figure 6 It is a partial schematic diagram of the steering limiting mechanism of an embodiment of the utility model.

[0018] In the figure: 1. steering wheel; 2. transmission box; 3. steering arm; 4. torque amplifier; 5. rolling bearing; 6. steering shaft; 7. steering limit plate; 8. steering lever; 9. lower support plate; 11. upper support plate; 14. driving gear; 15. driven gear; 16. idler; 17. driven sprocket; 18. driving sprocket. DETAILED DESCRIPTION

[0019] The content of the utility model is described in detail below in conjunction with the accompanying drawings.

[0020] The present embodiment is a front wheel mechanism for a three-wheeled material spreading vehicle, comprising a wheel, a steering arm 3, a transmission box 2 and a steering wheel 1. The top of the steering arm 3 is connected to the transmission box 2, and the side is connected to the wheel axle. A gear transmission unit and a sprocket transmission unit are sequentially arranged in the transmission box 2. A torque amplifier 4 is installed on the rotating shaft of the steering wheel 1. The steering wheel 1 is sequentially connected to the steering arm 3 via gears to drive the wheel to turn.

[0021] The transmission box 2 mainly comprises a horizontal upper support plate 10, a lower support plate 9 and a vertical side plate. The gear transmission unit and the sprocket transmission unit are both mounted on the upper support plate 10 and the lower support plate 9.

[0022] The gear transmission unit includes a driving gear 14 , a driven gear 15 and an idler gear 16 . The driving gear 14 is coaxially driven with the steering wheel 1 , and the driving gear 14 and the driven gear 15 are respectively meshed with the idler gear 16 .

[0023] The sprocket transmission unit includes a driving sprocket 17 and a driven sprocket 18 . The driven sprocket 18 is coaxially driven with the driven gear 15 . The lower end of the rotating shaft where the driving sprocket 17 is located is connected to the top of the steering arm 3 .

[0024] The mechanism is also provided with a limit mechanism, such as Figure 6 As shown, it includes two steering limit plates 7 and a steering stop rod 8, the steering limit plates 7 are fixed on the lower support plate 9 distributed on the left and right, the lower support plate 9 is located below the transmission box 2, and the steering stop rod 8 is fixed on the top of the steering arm 3. The steering limit plates 7 are used to limit the rotation range of the steering stop rod 8 with the steering arm 3. The rotation range limited in this embodiment is -75°~75°, which can avoid the problem of jamming or even overturning when the front wheels are turned.

Claims

1. A front wheel mechanism for a three-wheeled material spreading vehicle, characterized in that: The invention comprises a wheel, a steering arm (3), a transmission box (2) and a steering wheel (1); the top of the steering arm (3) is connected to the transmission box (2), and the side is connected to the wheel axle; a gear transmission unit and a sprocket transmission unit are arranged in sequence in the transmission box (2); a torque amplifier (4) is installed on the rotating shaft of the steering wheel (1); the steering wheel (1) is transmitted to the steering arm (3) through the gear transmission unit and the sprocket transmission unit in sequence, thereby driving the wheel to steer.

2. The front wheel mechanism for a three-wheeled material spreading vehicle according to claim 1, characterized in that: The gear transmission unit comprises a driving gear (14), a driven gear (15) and an idler gear (16); the driving gear (14) is coaxially driven with the steering wheel (1); and the driving gear (14) and the driven gear (15) are respectively meshed with the idler gear (16).

3. The front wheel mechanism for a three-wheeled material spreading vehicle according to claim 2, characterized in that: The sprocket drive unit comprises a driving sprocket (17) and a driven sprocket (18), wherein the driven sprocket (18) is coaxially driven with the driven gear (15), and the lower end of the rotating shaft where the driving sprocket (17) is located is connected to the top of the steering arm (3).

4. The front wheel mechanism for a three-wheeled material spreading vehicle according to claim 1, characterized in that: The vehicle also comprises a limiting mechanism, the limiting mechanism comprising two steering limiting plates (7) and a steering stop rod (8), the steering limiting plates (7) being fixedly mounted on a lower support plate (9) on the left and right sides, the lower support plate (9) being located below the transmission box (2) and fixedly mounted on the vehicle body, the steering stop rod (8) being fixedly mounted on the top of the steering arm (3), the steering limiting plates (7) being used to limit the rotation range of the steering stop rod (8) following the steering arm (3).

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