Telescopic truss structure for field operation

Abstract

The invention discloses a telescopic truss structure for field operation, which comprises a power device, a transmission mechanism and a plurality of trusses sequentially sleeved from outside to inside in a sliding manner. Meanwhile, except for a first stage of truss and a truss on the innermost layer, the outer end of each truss on other layers is provided with an extending pulley and the inner end of the truss is provided with a retracting pulley; an extending steel wire rope is arranged on each extending pulley; both ends of each extending steel wire rope are respectively fixed at the inner ends of two trusses adjacent to the truss with the corresponding extending pulley; each retracting pulley is provided with a retracting steel wire rope; and both ends of each retracting steel wire rope are respectively fixed at the outer ends of two trusses adjacent to the truss with the corresponding retracting pulley. The telescopic truss structure adopts the telescopic structure, so as to effectively improve a spraying range of spraying operation for each time, can also stably and reliably bear required field operation tools, and has high operating efficiency.

Description

technical field [0001] The invention relates to agricultural equipment, in particular to a telescopic truss mechanism for farmland operations. Background technique [0002] Although my country is a large agricultural country, the mechanization level of crop field management in my country is still relatively low, especially in crop field spraying (pesticides and foliar fertilizers, etc.) and crop seed production assisted pollination. The current crop field management in my country is dominated by manual and semi-mechanized operations, which is a labor-intensive production mode, which requires a lot of labor and labor intensity, and the field management method is extensive, the effective utilization rate of agricultural resources is low, and it is difficult to obtain crop yield and quality. At the same time, it brings serious pollution of water and soil resources, ecological system imbalance, decline in the quality of agricultural products, and threats to people's health. It ca...

AI Technical Summary

Problems solved by technology

However, the currently used spray booms are folding, and the folding control mechanism is complex. When working in the field, due to the unevenness of the farmland, the spray booms are prone to swing when the machine is walking, and it is difficult to keep the spray booms moving parallel to the ground; With the increase of the length of the boom, the balance of the spray boom is more difficult to control, and the two ends are easy to touch the ground, causing damage to the parts; and due to the defect of the connection method at the folding joint of the spray boom, the spray boom will inevitably vibrate when walking with the power machinery, which may easily cause spraying. Rod beams and folding joints are damaged; due to the limited load capacity at the folding joints, the width of the folding method is limited, and it is difficult to further expand the working width

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