360 degree four-wheel steering farm vehicle

Abstract

The invention discloses a 360-degree four-wheel steering agricultural vehicle. The 360-degree four-wheel steering agricultural vehicle comprises upright column type wheel shafts, wherein each wheel shaft comprises a power shaft, a steering shaft and a protection sleeve which are sequentially arranged in a sleeving manner from inside to outside; the output end of each of a front driving axle and a rear driving axle converts horizontal power into vertical power through a gear tumbler I, and then the vertical power is transferred to each power shaft; the lower end of each power shaft converts the vertical power into the horizontal power through a gear tumbler II, and the horizontal power is transferred to the power input end of a hub; a turbine II is arranged on the steering shaft of each wheel shaft, a turbine I of a four-wheel steering control mechanism drives a worm matched with the turbine I, and the worm drives the turbine II matched with the turbine II, so that the corresponding steering shaft is driven to rotate. According to the 360-degree four-wheel steering agricultural vehicle, four wheels of the agricultural vehicle can rotate for 360 degrees, and the agricultural vehicle is convenient to operate and good in power performance.

Description

technical field [0001] The invention relates to an agricultural vehicle, in particular to an agricultural vehicle capable of four-wheel steering within an arbitrary angle of 360 degrees. Background technique [0002] With the acceleration of the pace of agricultural mechanization in our country, agricultural vehicles play an important role in the field of modern agriculture. For example, agricultural tractors are inseparable from it in sowing, fertilizing, plowing, land preparation, ridging, transplanting, cultivating soil, and harvesting. However, the current agricultural tractors have the problem of large turning radius and inability to turn in a small space during actual use, which brings certain constraints to the mechanization of the entire production process. When the tractor is working in the field, due to the limitation of the steering range of the wheels, the turning radius is large when turning at the head of the field, and a small part of the field will not be abl...

AI Technical Summary

Problems solved by technology

However, the current agricultural tractors have the problem of large turning radius and inability to turn in a small space during actual use, which brings certain constraints to the mechanization of the entire production process

When the tractor is working in the field, due to the limitation of the steering range of the wheels, the turning radius is large when turning at the head of the field, and a small part of the field will not be able to work. Caused tractors to often crush surrounding crops when turning

[0003] Now many people have proposed four-wheel steering to solve this problem. For example, Chinese patent CN 201633774U discloses a four-wheel steering controller for a vehicle, which realizes four-wheel steering of the vehicle, and can control the rear wheel steering at the same time by manipulating the gear lever. And the rear wheels can rotate in the same direction as the front wheels, and can also rotate in the opposite direction to the front wheels, but the end of the four-wheel steering controller is still connected to the steering rod, and the steering rod drives the car suspension device, thereby driving the wheels to turn. The structure of the transverse drive axle of the vehicle has not changed, so the steering angle is limited by the drive axle and cannot be turned arbitrarily, and there will still be some fields that cannot be operated

[0004] Aiming at the problem that wheel steering is affected by the drive axle structure and cannot turn 360 degrees, Chinese patent CN202186422U discloses a steering mechanism that can turn 360 degrees, which realizes wheel steering through chain sprockets, but this mechanism needs to install a motor on the wheel to realize Wheel drive, the power performance of the whole device is poor, and the sprocket chain structure is easy to be damaged and faulty, so it is not suitable for use in the field of agricultural vehicles

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