Agricultural tractor

Abstract

The invention provides an agricultural tractor which comprises a lifter assembly, the lifter assembly comprises an assembly rack with an oil tank, a connecting part is arranged at the rear end of the assembly rack, lifting arms are symmetrically arranged at the two ends of the assembly rack, and the connecting part is connected with the lifting arms. The lifting arm comprises an outer lifting arm and an inner lifting arm, the outer lifting arm is rotatably mounted outside the oil tank through a main shaft, the inner lifting arm is positioned in the oil tank and is rigidly connected with the main shaft so as to synchronously rotate with the outer lifting arm, and a ball head buckle is arranged at the end part of the outer lifting arm; a lifter oil cylinder is hinged into the oil tank, an output shaft of the lifter oil cylinder is hinged to the inner lifting arm and used for driving the outer lifting arm to rotate, and the lifter oil cylinder is located below the horizontal plane where the axis of the main shaft is located. The agricultural tractor is large in lifting force, stable in lifting and falling, high in safety and good in reliability, and has a locking function.

Description

technical field The invention relates to a tractor, in particular to an agricultural tractor. Background technique With the development of industry, the progress of agriculture has also been significantly improved. Various equipments have appeared, which have replaced traditional cattle and manual initialization production, and the production efficiency has also been greatly improved. Taking walking tractors as an example, it is popular A type of transportation and agricultural machinery in Chinese towns and villages, powered by diesel engines, its small, flexible and powerful features make it very popular with farmers. According to the work performance, it can be divided into driving type, traction type and driving traction type. The drive type is mainly equipped with rotary tillers, so it is also called power tiller; the traction type is mainly matched with traction farm tools; the dual-purpose type can be matched with rotary tillers, as well as with traction farm tools o...

AI Technical Summary

Problems solved by technology

In the prior art, the lifter cylinder (including various pipelines) is located outside, and the heat generated by long-term stress cannot be dissipated quickly, which affects the service life; and is easily affected by other components. When it is affected by other equipment (or components ) impact, it is easy to damage the oil cylinder, and even pressurize the oil cylinder, which is poor in safety; and the acceleration at the moment of pressurization of the oil cylinder is relatively large, resulting in instant shock and vibration, and at the same time collides with the rear-end agricultural equipment. If things go on like this, stability and service life will be affected ; At the same time, when the lifter is under pressure for a long time, the vibration generated during driving increases the force on the lift arm, which puts a greater pressure on the oil circuit. Affected by working conditions, when the pipeline connection or pipe When the road leaks due to various reasons, the oil cylinder loses pressure, causing the lifting arm to lose its supporting force, which can easily cause varying degrees of damage to the rear-end agricultural equipment, and even cause safety accidents

Images