A rear-mounted disc mower is a common agricultural machine.
The following provides a detailed introduction to its structure, operating principle, performance characteristics, and application scenarios:
Structural Components
The drive system, which primarily uses shaft input and diesel engine belt input, transmits tractor power to the cutting system, rotating the cutterhead.
The frame is the mower's supporting structure, used to mount and secure other components and ensure stability during operation.
The cutting system consists of a cutterhead and blades. The blades are secured to the cutterhead with bolts and are movable. When the cutterhead rotates at high speed, the blades cut the grass by inertia.
The hydraulic lift system uses a single-cylinder hydraulic system or leverages the tractor's hydraulic pressure to lift the machine, thereby controlling the cutting height.
Operating Principle: A rear-mounted disc mower is connected to the tractor's rear suspension frame and is powered by the tractor's power take-off shaft. Power is transmitted through the drive system to the cutting system's cutterhead, causing it to rotate at high speed, driving the blades.
The inertia generated by the high-speed rotation of the blades cuts the grass.
When encountering hard objects, the blades automatically rebound to prevent them from breaking. Furthermore, the hydraulic lift system adjusts the mower's height as needed to control the cutting height.
Features
High Mowing Efficiency: Multiple disc cutters operate simultaneously at a high speed, enabling large areas to be mowed in a short time, improving efficiency.
Clean Cutting: The disc mower's blades maintain a relatively stable cutting height during rotation, resulting in a more even cut and facilitating subsequent grass collection and processing.
Excellent Contour Control: Some mowers are equipped with mechanical floating systems or hydraulic-pneumatic suspension systems that automatically adjust the mower's height to the surface, maintaining an appropriate distance from the ground.
This provides excellent contour control, ensuring a close cut and protecting the grass from damage.
Excellent Protection: The blades are retracted when encountering large obstacles, preventing damage. Some mowers also feature an automatic safety release mechanism that automatically releases the mower bar when it encounters an obstacle, protecting mower components from damage.
Simple Structure and Low Maintenance: Compared to some other types of lawn mowers, rear-mounted disc mowers have a relatively simple mechanical structure. They utilize a rubber belt drive, eliminating complex gear transmission mechanisms. This results in excellent operating stability, low failure rates, and low maintenance costs.
Applications
Forage Harvesting: Primarily used for harvesting various types of forage, such as natural grasslands and artificial pastures, to provide high-quality feed for livestock.
Roadside and Public Facility Projects: Suitable for weeding along roadsides and mowing lawns in public green spaces, maintaining a clean and tidy roadside landscape and public areas.
Orchard and Woodland Clearing: In orchards, it can be used to remove weeds between rows of fruit trees, reducing competition for nutrients and water. In woodlands, it can also be used to clear weeds and low shrubs between trees, facilitating forest management.
