Gearbox of tracked carrier for agriculture and forestry

Abstract

The gearbox comprises a shell, an input shaft, a variable-speed shaft, a steering clutch shaft, an idle shaft, a left output shaft and a right output shaft, a first-gear driving gear and a second-gear driving gear are fixed to the input shaft, a first-gear driven gear and a second-gear driven gear are arranged on the variable-speed shaft in a sleeving mode, and first-gear and second-gear switching is achieved through a synchronizer; a central gear is fixed on the variable-speed shaft, a clutch gear, a left steering gear and a right steering gear are sleeved on the steering clutch shaft, the clutch gear is meshed with the central gear, and the left steering gear and the right steering gear are respectively connected with the clutch gear through a clutch B and a clutch C and are connected with the shell through a clutch A and a clutch D; a left duplex idle gear and a right duplex idle gear are fixed on the idle shaft, a left output gear and a left track driving wheel are arranged on the left output shaft, and a right output gear and a right track driving wheel are arranged on the right output shaft. The gear shifting mechanism has the parking function, gear shifting operation is easier and smoother, and noise is low.

Description

technical field [0001] The invention belongs to the technical field of crawler vehicle gearboxes, in particular to a crawler vehicle gearbox for agriculture and forestry. Background technique [0002] Compared with wheeled vehicles, tracked vehicles have strong off-road performance, heavy load, and can adapt to harsh working environments. Therefore, they have been widely used in military, industrial, agricultural and other fields. my country's terrain is complex, and plateaus, mountains, and hills account for a large proportion. When developing agricultural and forestry projects in these areas, it is difficult for large tracked vehicles to carry out operations. Many agricultural and forestry projects have high requirements for soil conditions, and wheeled vehicles are easy to crush the soil. , not conducive to crop growth. There is a great market demand for agricultural and forestry crawler vehicles suitable for complex terrain. The gearbox is the core component of the craw...

AI Technical Summary

Problems solved by technology

At present, the transmission structure of high-horsepower crawler vehicles is extremely complex, inconvenient to maintain, and the cost is high, and it is not suitable for the working environment of mountains and hills.

[0003] In the prior art, the Chinese invention patent with the notification number CN205859093U discloses a small crawler vehicle gearbox, which adopts mechanical gears to directly engage and disengage to shift gears, which is prone to failure to shift into gears or skipping gears, and the noise is loud and difficult to operate. uncomfortable

In addition, tooth clutches are commonly used in conventional agricultural and forestry tracked vehicle gearboxes. The unilateral tooth clutches must bear a huge load when turning, and the combined impact is large. The life of the dog clutches is low and it is prone to failure. The clutch is in the disengaged state, the vehicle does not have the parking function, and there are potential safety hazards

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