Remote bilateral balancing composite driver soft transmission system for agricultural greenhouse sunshading and heat preserving

Abstract

Provided is a remote bilateral balancing composite driver soft transmission system for agricultural greenhouse sunshading and heat preserving. The system comprises a power assembly, guide wheels, a greenhouse framework mesh bed, a quilt rolling shaft, a heat preserving quilt, an upper pulling rope and a lower pulling rope; the power assembly is connected with remote balancing composite drivers through the guide wheels, the upper pulling rope and the lower pulling rope; the heat preserving quilt is rolled on the quilt rolling shaft; the remote balancing composite drivers are connected through the quilt rolling shaft; one end of each secondary driving rope is fixed to the top of a greenhouse, the other end of each secondary driving rope is fixed to the bottom of the greenhouse, and each secondary driving rope is wound around a secondary driving roller of the corresponding remote balancing composite driver for one round; one end of each main driving rope is fixed to a main driving roller of the corresponding remote balancing composite driver, and the other end of each main driving rope is fixed to the bottom of the greenhouse. According to the remote bilateral balancing composite driver soft transmission system for agricultural greenhouse sunshading and heat preserving, a guarantee is provided for development of internal heat preserving from a pushing curtain type to a rolling type, the internal heat preserving effect is greatly improved, the material cost and the installation and maintenance cost are reduced, working is stable, stressing is uniform, and the security coefficient is high.

Description

technical field [0001] The invention belongs to the field of agricultural engineering equipment, and in particular relates to a soft transmission system of a remote bilateral balanced composite driver used for shading and heat preservation of agricultural greenhouses. Background technique [0002] Although the application of transmission technology for heat preservation and shading in agricultural greenhouses in my country has a history of more than 20 years, its application level is very backward, which is extremely disproportionate to the current level of agricultural development in our country. In the specific use of this device, the main problems are: what it adopts is a kind of unilateral power transmission technology. The length of the rotating rod is generally more than 15m. In this way, during the rotating process, due to the superposition of the weight of the rotating rod itself and the weight of the insulation layer, as well as the friction resistance between the i...

AI Technical Summary

Problems solved by technology

[0002] Although the application of transmission technology for heat preservation and shading in agricultural greenhouses in my country has a history of more than 20 years, its application level is very backward, which is extremely disproportionate to the current level of agricultural development in our country

In the specific use of this device, the main problems are: what it adopts is a kind of unilateral power transmission technology. The length of the rotating rod is generally more than 15m. In this way, during the rotating process, due to the superposition of the weight of the rotating rod itself and the weight of the insulation layer, as well as the friction resistance between the insulation layers during the rotation, the torque on the rotating rod is extremely unbalanced. Large deformation and twisting of the drive rod often occur during work, causing great damage to the device and production

2. The rotation direction of the rotating shaft is single. The device is driven by the motor and the reduction device in series, so the power output mode is single. In order to meet the needs of rolling up the insulation layer, the power design is often biased higher than the required power demand, resulting in a certain power waste.

More importantly, in the process of unfolding the insulation layer, since the power is transmitted outward by the drive rod, while the movement is unfolded layer by layer from the outside, this causes the power output and the movement of the insulation layer to be asynchronous, especially In rainy and snowy days, this kind of out-of-sync happens very frequently

In actual production, it is often necessary to use human power to complete the expansion of the insulation layer. Due to the cumulative effect of the previous torque, when the expansion radius of the insulation layer is less than a certain value, the expansion will suddenly accelerate, and this situation can easily cause casualties. ACCIDENT

3. The effect of resource utilization is poor. There must be a set of power equipment in each unit area of ​​heat preservation and shading to be driven. However, power sharing cannot be realized during the transmission process of a greenhouse, resulting in a great waste of resources.

4. The use effect in alpine areas is poor. In the production of agricultural vegetables in relatively alpine areas in my country, in order to improve the effect of heat preservation, double-layer heat preservation measures are also used, but the transmission technology currently used is still the method of unilateral power. Electric film rolls are used to insulate with plastic film. Therefore, in addition to the unbalanced movement of this technology, the span of the roll film is also limited. In addition, the heat conduction of the plastic film is fast, so it is impossible to achieve real insulation in the greenhouse in the alpine region.

5. The production method is not compatible with the high-efficiency agriculture, environmental protection agriculture and green agriculture advocated by the country today. The existing transmission device limits the expansion of the span area of ​​the greenhouse; it makes it difficult to use agricultural machinery in the greenhouse; on the other hand, the existing The device cannot effectively retract and unwind the thermal insulation PE film, resulting in the inability to effectively replace the air in the greenhouse with the outdoor air under the premise of thermal insulation. In the process of agricultural production, it is necessary to manually add dry ice technology to increase the concentration of carbon dioxide in the greenhouse to improve the quality of agricultural products. This in turn causes an artificial increase in the concentration of carbon dioxide in the atmosphere; at the same time, due to the inability to obtain effective air purification in the greenhouse, coupled with the internal environment of high temperature and high humidity, the land mildew and pests and diseases increase, resulting in various pesticides in production. At the same time, it will cause great damage to the health of those engaged in greenhouse production, which is not compatible with the current green and environmentally friendly production methods advocated by the state.

Images