Hydraulic motor-driven and omni-directional leveling hillside crawler tractor
A hydraulic motor and tractor technology, which is applied in the field of agricultural machinery, can solve the problems of difficulty in meeting control requirements, complicated operation of mechanical gearboxes, high shifting and steering frequency, and achieves the effect of improving sloping land adaptability and promoting application value.
Inactive Publication Date: 2020-01-07
NORTHWEST A & F UNIV
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Problems solved by technology
[0003] When existing mountain tractors work on slopes, they usually do not level the body with changes in the terrain, so the stability of the tractor cannot be guaranteed
[0004] At present, the walking system of mountain crawler tractors generally adopts mechanical gearbox and steering mechanism, but the operation of mechanical gearbox is complicated and laborious, and the shifting and steering frequency of mountain crawler tractors are high when working on slopes, so the traditional mechanical walking system is difficult to meet manipulation requirements
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[0016] A hydraulic motor-driven omnidirectional leveling mountain crawler tractor of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0017] With reference to the accompanying drawings, a hydraulic motor-driven omnidirectional leveling mountain crawler tractor mainly includes a vehicle body horizontal leveling device, a vehicle body longitudinal leveling device and a full hydraulic drive system.
[0018] The body lateral leveling device of the omnidirectional leveling mountain crawler tractor driven by a hydraulic motor provided by the present invention mainly includes a lower frame 17, a slave rocker 18, a lateral leveling oil cylinder 19, a master rocker 20, and a trolley frame 21 , the main rocker 20, the lower frame 17, the trolley frame 21, and the slave rocker 18 constitute a "parallel four-bar mechanism". It is hinged with the supported lower frame 17, and the horizontal leveling cylinder 19 is respectively...
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The invention discloses a hydraulic motor-driven and omni-directional leveling hillside crawler tractor. The tractor mainly comprises a vehicle body transverse leveling device, a vehicle body longitudinal leveling device and a full hydraulic driving system; the vehicle body transverse leveling device adopts a parallel four-rod structure, the included angle between a connecting rod and a track roller frame is changed by controlling a transverse leveling oil cylinder on the single side of a frame, the supporting height of a main rocker at the side is adjusted, the vehicle body of the tractor always keeps horizontal, and the transverse stability of the tractor is improved; and the vehicle body longitudinal leveling device adopts a double-frame structure, the included angle between a lower-layer frame and an upper-layer frame is changed by controlling a longitudinal leveling oil cylinder, and longitudinal leveling of the vehicle body is realized. According to the tractor, two hydraulic motors are arranged on a tractor frame in a left-right symmetry mode to provide power for a driving wheel, a hydraulic pump is arranged on the tractor frame to complete conveying of hydraulic oil from anoil tank to a hydraulic valve, and the hydraulic valve is controlled to complete travelling, steering, speed and leveling instructions of the tractor; and the system can effectively improve the slopeadaptability, stability and operation convenience of the hillside tractor, and has good popularization and application value.
Description
technical field [0001] The invention relates to the field of agricultural machinery, in particular to the field of agricultural machinery in hilly and mountainous areas, in particular to an omnidirectional leveling mountainous crawler tractor driven by a hydraulic motor. Background technique [0002] my country has a large area of mountains and hills, a large population, and rich natural resources, but the level of agricultural mechanization in this area is relatively low, which seriously restricts its economic development. It is of great significance to promote the agricultural and social development of this area to vigorously develop agricultural machinery suitable for mountainous and hilly areas and improve the comprehensive agricultural production capacity of hilly and mountainous areas. [0003] When existing mountain tractors work on slopes, the vehicle body is usually not leveled with changes in the terrain, so the stability of the tractor cannot be guaranteed. [...
Claims
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IPC IPC(8): B62D55/116B60K11/02
CPCB60K11/02B62D55/116
Inventor 杨福增孙景彬刘琪许博张国强张亚洲刘志杰孟宠
Owner NORTHWEST A & F UNIV