Tracked chassis for agricultural machinery

Abstract

A crawler chassis used for agricultural machinery, the two sides of the chassis frame are respectively connected with left and right annular crawler structures, the left and right annular crawler structures respectively include a circular crawler, and the annular crawler is equipped with front, rear and bottom belts. A driven wheel set consisting of two pulleys and two top pulleys, and the top pulley is located at the top of the inner side of the endless track and supports the endless track upwards, and a driving wheel is engaged with the top of the outer side of the endless track, and the driving wheel is located at the supporting position of the two top pulleys between them and press the ring track from top to bottom, so that the ring track forms an arc shape on the top to meet the transmission wrap angle of the outer teeth of the driving wheel; two legs are respectively set on both sides of the chassis frame to support the left and right ring track structures. Two top pulleys, adjusting the height of the feet can realize the height adjustment of the chassis frame; a speed change gearbox is arranged between the left and right ring track structures, and the output shafts of the speed change gear box are respectively connected to the drive wheels of the left and right ring track structures , and can achieve 90% of agricultural machinery. Turn in place or 180. U-turn on the spot.

Description

technical field [0001] The invention relates to a crawler-type mechanical chassis, in particular to a crawler-type paddy field, dry soil cultivator, crawler-type rotary tiller, crawler-type tractor, and crawler-type combine harvester which are suitable for use in rural areas. Background technique [0002] The existing known crawler paddy fields, dry soil tillage machines, crawler rotary tillers, crawler tractors, crawler combine harvesters and other agricultural machinery (hereinafter referred to as agricultural machinery) all use ring-shaped rubber crawlers, and the supporting driving wheels The drive structure is all crawler internal tension type front or rear drive structure. The "track internal tension type front or rear drive structure" mentioned here means that the output shaft of the transmission gearbox and the driving wheel are installed at the front or rear position of the inner ring of the track, and the track is driven by the driving wheel to achieve the purpose ...

AI Technical Summary

Problems solved by technology

[0005] Second, in response to the problems mentioned in one of the above, there is a structure with a middle-drive triangular track configuration, but this structure is also an internal tension structure of the driving wheel, that is, the driving wheel is installed on the upper side of the track in the middle of the chassis frame to drive the track , although the chassis frame can properly raise some heights from the ground, but in addition to the common defects of the known front (or rear) internal drive type, there are also defects: The installation position of other components is limited, the center of gravity of the machine must be raised, the stability is relatively poor, which brings unsafe factors, and it still cannot meet the needs of the height of the machine chassis from the ground for paddy fields with deep mud feet

[0010] Seventh, according to my country's national conditions, grain production in hills and mountainous areas is absolutely indispensable at present, and small-sized wheeled harvesters are also needed for planting one-season rice and wheat. If the crawler walking is replaced by rubber wheels, loading and unloading is very difficult and quite troublesome

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