For tractors: focus on heavy load impact resistance + steering adaptation
Spiral bevel gears (meshing surface is more than 30% larger), some high-horsepower models superimpose planetary gear sets Coarse shaft thick box (shaft diameter ≥ 50mm, box wall thickness 10–15mm, cast steel material) must have a differential to realize the speed difference between the inner and outer wheels when turning
For harvesters: focus on multi-module collaboration + overload protection
Parallel shaft helical gears or cycloidal needle wheels (single-stage speed ratio up to 1:87) and multiple output shafts (2–4 pieces) are mostly adopted, with independent seals, and the key shafts are equipped with friction plate clutches or shear pins to prevent seizing damage
For planters: focus on precise speed regulation + self-locking
Worm gears (with self-locking function) or frequency conversion planetary gears are commonly used
Thin shaft light cabinet (shaft diameter 15–30mm, aluminum alloy cabinet, wall thickness 3–5mm)
Support variable seeding, and can be connected to the agricultural machinery ECU to achieve stepless speed regulation
Rotary tiller
Main components: drive shaft assembly, suspension frame, gearbox assembly, frame, cutter shaft assembly
Structural features :
The power is input to the intermediate gearbox through the universal joint drive shaft and then to the tool shaft
Multi-blade rotary tiller blade mounted on the tool shaft (e.g. 1GKN-250 model with 72-blade knife)
The frame is load-bearing, and the retaining plate and the vibration roll work together to achieve soil crushing and leveling
Corn harvester mower
Four components: knife teeth, cutters, guide plates, and conveyors
Structural features
The blade teeth are straightened and scimitarized, and the straw is rotated at high speed
The cutter is frame-type welded steel tube structure, which ensures rigidity
The conveyor includes chains, grooves and transmission devices to efficiently convey crops
Reciprocating lawn mower
Core structure: Traction device, power transmission device, mowing device, flattening device, hydraulic system mowing device is composed of moving knife, fixed knife and blade guard, and the average speed of the moving tool is 1.6–2.0 m/s and the forward speed of the operation is 6–8 km/h through the crank slider or swing ring mechanism
