Small-size four-wheel self-propelled spraying rod sprayer

Abstract

The present invention relates to the technical field of agricultural machinery and particularly to a small-size four-wheel self-propelled spraying rod sprayer. The small-size four-wheel self-propelledspraying rod sprayer comprises a vehicle frame, a walking system, a steering system, a spraying system and an engine; the vehicle frame comprises a vehicle frame chassis, a telescopic front vehicle axle, front vehicle axle legs, a telescopic rear vehicle axle and rear axle legs; the walking system comprises front walking wheels, rear walking wheels and a walking chain transmission mechanism for driving the rear walking wheels to rotate; and the spraying system comprises a liquid medicine box, a three-cylinder pump and a lifting type spraying mechanism. The front vehicle axle and the rear vehicle axle of the vehicle frame are both of telescopic structures, so that bidirectional adjustment of wheel distances is realized, and rolling of the wheels on crops during operation is effectively avoided; moreover, lifting of a spray rod is more convenient and faster, and labor intensity of an operator is greatly reduced; and in addition, all parts of the steering system are tightly matched, so that flexible controls of line changing, transition and steering in a small land block operation process in the sprayer operation process are realized.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a small four-wheel self-propelled boom sprayer. Background technique [0002] With the mechanization and intelligence of agricultural production, self-propelled sprayers, as a high-efficiency plant protection agricultural machinery, are widely used in weeding, pest control, sterilization, disease prevention and land fertilization in paddy fields and dry fields. The existing small four-wheel self-propelled boom sprayer has the following problems: 1. The wheel base cannot be adjusted according to the planting density of the crops. Therefore, when walking in the field, the crops will be crushed; 2. The spray boom The lifting of the boom is achieved through the plug-in cooperation between the lifting rod installed on the spray boom mounting frame and the sleeve assembled on the rear axle. When the spray boom is lifted, it is necessary to manually lift the spray boom mo...

AI Technical Summary

Problems solved by technology

The existing small four-wheel self-propelled boom sprayer has the following problems: 1. The wheel base cannot be adjusted according to the planting density of the crops. Therefore, when walking in the field, the crops will be crushed; 2. The spray boom The lifting of the boom is achieved through the plug-in cooperation between the lifting rod installed on the spray boom mounting frame and the sleeve assembled on the rear axle. When the spray boom is lifted, it is necessary to manually lift the spray boom mounting frame to the required height Fixed, the lifting process is cumbersome, and the labor intensity of the operator is relatively high; 3. The steering system is too crude, and the steering control is not precise, resulting in inflexible steering during the operation process, changing the field, and small plots

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