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How to arrange and install the rotary tiller?
Before rotating the tillage operation, properly arranging the rotary knife is a critical task. Incorrect installation can significantly impact the quality of the work, and due to unbalanced blade rotation, it may cause mechanical damage, increase vibration, and even pose safety risks.
To ensure the rotary cultivator functions effectively and avoids plowing or clogging, the knife shaft must be evenly distributed. The arrangement of blades on the shaft should meet several important criteria:
1. Install more than two blades to ensure equal soil cutting, resulting in high-quality tilling. After cultivation, the bottom of the furrow should be level.
2. During one full revolution of the cutter shaft, at the same angular position, there should always be a blade inserted into the soil. This ensures stable operation and balanced load distribution on the shaft.
3. For consecutive blades that enter the soil, the greater the axial spacing between them, the better. This helps prevent clogging and improves overall performance.
4. Left and right bending blades should be staggered as much as possible to balance the forces on both ends of the cutter shaft. Typically, the blades are arranged in a helical pattern for optimal performance.
There are three common methods for installing the rotary knife:
1. All blades are installed facing the center of the cutter shaft. This results in a raised middle after tilling.
2. Except for the outermost two blades, all others are installed outward. This creates a concave middle after tilling.
3. A mixed installation with staggered inner and outer blades leads to a smooth and even surface after tilling.
In Guangdong Province, the 12?K walking tractors are widely used and equipped with rotary cultivators. These machines typically have 16 blades on the cutter shaft. The left and right halves are arranged in a staggered manner, making them suitable for paddy fields, dry land, and especially vegetable cultivation, where precise tilling is essential.
When installing the rotary blade, it's crucial to orient the cutting edge toward the soil to ensure effective and efficient operation. Proper installation not only enhances performance but also extends the lifespan of the equipment and improves operator safety. Always double-check the blade orientation and spacing before starting the machine to avoid unnecessary wear and tear.