Greenhouse external heat preservation quilt crossing type paving and rolling device

Abstract

The invention belongs to the field of facility horticulture, and discloses a greenhouse external heat preservation quilt crossing type paving and rolling device. A quilt rolling shaft is arranged above a greenhouse; the two sides of the greenhouse are each provided with a supporting track system; the quilt rolling shaft moves back and forth between two greenhouse feet along tracks of arc-shaped rack guide rails in the supporting track systems; the span and the height of the arc-shaped rack guide rails are both larger than the corresponding size of a gable wall of the greenhouse; one end of a heat preservation quilt is fixed on the greenhouse feet, and the other end is wound and fixed on the quilt rolling shaft; the two ends of the quilt rolling shaft are each provided with a gear; a power connecting part and an axial limiting part are reserved at the two ends of the quilt rolling shaft respectively; a power transmission mechanism is installed outside the gable wall on one side of the power connecting part; and the power connecting part is fixedly connected with an output shaft of a speed reducer in the power transmission mechanism. According to the greenhouse external heat preservation quilt crossing type paving and rolling device, by means of the supporting of supporting rails on the two sides, load distribution on the quilt rolling shaft is more uniform, deformation of the quilt rolling shaft is effectively reduced, and limitation of the quilt rolling shaft on the shed length is broken through.

Description

technical field [0001] The invention belongs to the technical field of facility gardening, and in particular relates to a roll-laying device for external heat preservation of a greenhouse. Background technique [0002] Plastic greenhouses are the type of facility gardening that has the largest application area and the widest range of applications in China. It has the advantages of low cost, good light transmission performance, and high land utilization rate. The prefabricated plastic greenhouses can be factory-produced, further reducing construction costs. . However, due to insufficient thermal insulation performance, it is usually difficult for plastic greenhouses in most northern regions to achieve overwintering production, and the utilization rate of the facilities throughout the year is not high. The external thermal insulation plastic greenhouse combined with the external thermal insulation quilt system of the solar greenhouse and the greenhouse structure is a new type...

AI Technical Summary

Problems solved by technology

[0004](1) Affecting lighting

The insulation quilt parked on the ridge will block the sunlight from entering the shed, thus forming a shadow belt in the shed and affecting the lighting of the plants in the shed

[0005](2) Concentrated load

This requires arranging more columns in the middle of the greenhouse, increasing the construction cost, and too many columns are not conducive to mechanized operations in the greenhouse

[0006](3) Affects ventilation

An arched greenhouse external insulation quilt roll-over rolling system developed by the Chinese Academy of Agricultural Sciences (Zhan Zhengpeng, Yang Qichang, Zhang Yi, Ma Qianlei, Zhang Jinfang, Song Guoxiang, Yang Hua. The arched greenhouse external insulation quilt roll-over rolling system Design and simulation test [J]. Journal of China Agricultural University, 2020, 25(04): 102-112.) discloses that the rolling quilt rod and rope rolling rod are supported by bearing housings and placed on the gutters on both sides. Put it on the rolling quilt rod and place it on one side of the gutter, and fix the other side on the draw bar. The draw bar fixes the side of the heat preservation quilt to move on the arched roof to reduce the load on the shed surface, but the gap between the heat preservation quilt and the shed surface The relative sliding will inevitably cause friction on the film

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