A straw baler hydraulic system

Abstract

The invention discloses a hydraulic system of a straw packaging machine. The hydraulic system comprises a hydraulic oil tank, a main oil pump and an auxiliary oil pump. The main oil pump and the auxiliary oil pump are mounted on the hydraulic oil tank. The main oil pump passes a main oil pump electromagnetic unloading valve, an electromagnetic relief valve and a one-way valve. The auxiliary oil pump passes an auxiliary oil pump electromagnetic unloading valve to be connected with a main push hydraulic rod electro-hydraulic directional control valve to supply oil for the main push hydraulic rod. The main oil pump is connected with a door opening hydraulic rod electroc-hydraulic directional control valve, as the main push hydraulic rod stops working, the main oil pump electromagnetic unloading valve is closed, the main oil pump supplies oil for the door opening hydraulic rod through the door opening hydraulic rod electro-hydraulic directional control valve, and the auxiliary pump electromagnetic unloading valve unloads. The auxiliary oil pump is connected with a discharge hydraulic rod electro-hydraulic directional control valve, the auxiliary oil pump electromagnetic unloading valve is closed, and the auxiliary oil pump supplies oil for a discharge hydraulic rod through the discharge hydraulic rod electro-hydraulic directional control valve. The hydraulic system has the advantages that rapid compressing is achieved, working efficiency is increased, overhigh oil temperature is avoided; the door opening hydraulic rod electro-hydraulic directional control valve and the discharge hydraulic rod electro-hydraulic directional control valve are added so as to provide a novel working mode for the straw packaging machine.

Description

technical field [0001] The invention relates to a straw baler, in particular to a straw baler hydraulic system. Background technique [0002] The straw baler belongs to a kind of packing compression equipment, which compresses the straw with light weight and large stacking space together for easy transportation. The straw is the remaining part of the crops after harvesting. The existing straw treatment methods mainly include: 1. Burning, polluting the environment, Waste of resources; 2. Harvester packaging, the harvester bundles the straw when harvesting, but this kind of packaging is loose, small in size, and still needs to be reprocessed, which is not conducive to the recycling of resources; 3. Baler packaging, one packaging can reach 1 tons, easy to transport, use resource recycling. The existing straw baler uses a hydraulic system to meet the energy required for one baler weight. However, the hydraulic system of the existing baler has many problems such as continuous wo...

AI Technical Summary

Problems solved by technology

[0002] The straw baler belongs to a kind of packing compression equipment, which compresses the straw with light weight and large stacking space together for easy transportation. The straw is the remaining part of the crops after harvesting. The existing straw treatment methods mainly include: 1. Burning, polluting the environment, Waste of resources; 2. Harvester packaging, the harvester bundles the straw when harvesting, but this kind of packaging is loose, small in size, and still needs to be reprocessed, which is not conducive to the recycling of resources; 3. Baler packaging, one packaging can reach 1 tons, easy to transport, use resources to recycle

The existing straw baler uses a hydraulic system to meet the energy required for a baler, but the hydraulic system of the existing baler has many problems such as continuous work that leads to overheating and shutdown, and the compression of the straw by a single hydraulic rod.

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