Hydraulic transmission system of tractor in hilly mountain area

A hydraulic transmission, hilly and mountainous area technology, applied in the direction of fluid pressure actuators, mechanical equipment, servo motors, etc., can solve the problems of turning and turning difficulties, large ground undulations, poor work quality, etc., to improve steering flexibility and ground clearance Larger, the effect of reducing the weight of the whole machine

Pending Publication Date: 2018-11-13
NANJING AGRI MECHANIZATION INST MIN OF AGRI
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Problems solved by technology

However, due to the large undulations of the ground, small and irregular fields, and many steep and curved slopes, conventional tractors h

Method used

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  • Hydraulic transmission system of tractor in hilly mountain area

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Embodiment

[0025] A hydraulic transmission system of a tractor in hilly and mountainous areas. Based on electromechanical-hydraulic integration technology, a full hydraulic transmission system is used, mainly including: full hydraulic travel drive system, which can improve the power of the machine and prevent the machine from slipping and breaking down; multi-mode steering system, reducing the turning radius, according to different operating fields Reasonable selection of steering mode; ramp adaptive system, automatically leveling the frame when the tractor goes up and down the slope, preventing the machine from rolling over and improving the ability to climb over the ridge; the lifting and horizontal hydraulic profiling system improves the working quality of the tractor traction machinery ;Intelligent seeding system, such as figure 1 shown:

[0026] The power source of the above five systems is the diesel engine equipped with the tractor. The rated speed of the diesel engine is 2000-25...

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Abstract

The invention relates to a hydraulic transmission system of a tractor in a hilly mountain area. According to the technical scheme, an engine is connected with a transfer case, the transfer case divides the power into three paths of power, wherein one paths of the power is distributed to a two-way variable plunger pump of a walking driving system, the second path of the power is distributed to a constant-voltage variable pump of a ramp self-adaptation system, and the third path of the power is distributed to a gear pump of a multi-mode steering system through a speed increasing mechanism; the walking driving system uses a single-pump four-motor configuration mode; the multi-mode steering system realizes switching among four modes, namely, a front wheel steering mode, a rear wheel steering mode, a four-wheel concentric steering mode and a four-wheel crab-shaped steering mode; the ramp self-adaptation system can adjust a tractor frame to be in a horizontal state in the uphill and downhillprocess of the tractor; a lifting profiling system ensures working parts to automatically keep the same distance as the ground, and also serves as an active lifting power part of the working parts; ahorizontal profiling system can enable the working parts to be changed and adjusted according to the fluctuation of the terrain; and an intelligent seeding system can adapt to the seeding requirements of different driving speeds and different crops, and the seeding consistency is high.

Description

technical field [0001] The invention relates to a hydraulic transmission system, in particular to a hydraulic transmission system of a tractor in hilly and mountainous areas. Background technique [0002] The area of ​​hilly and mountainous areas accounts for more than 1 / 3 of my country's land area. According to statistics, the production of grain in hilly and mountainous areas accounts for 55% of the country's total, and the output of oil crops accounts for about 49%. very important position. However, due to its large undulations, small fields, irregularities and many steep slopes, conventional tractors have problems such as poor passability, difficulty in turning and turning, and poor operation quality when operating in hilly and mountainous areas. bottleneck. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to: provide a hydraulic transmission system of a tractor in hilly and mountainous areas, which adopts a hydraulic system as a whole, has st...

Claims

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Application Information

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IPC IPC(8): F15B11/16F15B11/20
CPCF15B11/16F15B11/20
Inventor 扈凯张文毅纪要李坤严伟祁兵余山山
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI
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