Tracked chassis for field management machine

Abstract

A tracked chassis for a field management machine is characterized in that an engine portion, a speed change steering control portion, an operating portion and a handheld operating portion are mounted on a chassis support portion, an operating adjusting portion is connected with a tracked travel portion, a power output reduction portion is connected with a power input portion, a primary shifting transmission portion is connected with the power output reduction portion and a secondary shifting transmission portion, an intermediate sprocket transmission portion is connected with the secondary shifting transmission portion and a steering intermediate transmission sprocket, a left steering control portion is connected with the steering middle transmission sprocket through a left steering drive portion, a right steering control portion is connected with the steering middle transmission sprocket through a right steering drive portion, the primary shifting control portion is connected with the primary shifting transmission portion, and a driving position and reversing position shifting control portion is connected with the power input portion. The tracked travel portion uses track drive so that a vehicle is better in trafficability; the speed change steering control portion has an operating device transmission function, overall weight of the machine can be decreased, and the machine is more universal.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a crawler-type garden management machine chassis. Background technique [0002] At present, most of the pastoral management machines are driven by rubber wheels. However, due to the light weight of the pastoral management machines, after entering the field, the ground adhesion is small. When the resistance increases, the driving wheels are easy to slip. In order to improve the driving ability of the machine, when When the pastoral management machine is working in the field, the driving rubber wheel is usually changed to an iron driving wheel, and the convex teeth of the iron driving wheel in the circumferential direction are inserted into the soil deeply, which can improve adhesion and prevent slipping; but the iron driving wheel At the same time, the convex teeth of the wheel will destroy the surface of the mud bottom ditch, which is not conducive to the drainage ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the pastoral management machines are driven by rubber wheels. However, due to the light weight of the pastoral management machines, after entering the field, the ground adhesion is small. When the resistance increases, the driving wheels are easy to slip. In order to improve the driving ability of the machine, when When the pastoral management machine is working in the field, the driving rubber wheel is usually changed to an iron driving wheel, and the convex teeth of the iron driving wheel in the circumferential direction are inserted into the soil deeply, which can improve adhesion and prevent slipping; but the iron driving wheel At the same time, the convex teeth of the wheel will destroy the surface of the mud bottom ditch, which is not conducive to the drainage of the field. When walking on the road, due to the large circumferential gap between the convex teeth, the driving wheel contacts the ground in a polygonal surface, resulting in unstable driving of the machine. In order to solve the above problems , The pastoral management machine usually uses two sets of driving wheels, one set of rubber wheels, used for road driving and transfer of the pastoral management machine, and one set of iron driving wheels, used for field operations. Users can adjust and install different forms according to different needs. drive wheel

At the same time, the pastoral management machine mostly adopts a two-wheel structure. The two tires are on the same axis. The machine can rotate around the axis of the driving wheel during motion. The work quality is low and the operation is extremely inconvenient. The front end of the management machine is provided with a support wheel, which forms a three-point support structure by the driving wheel and the support wheel to enhance the driving stability of the machine, and the support wheel also plays the role of plowing depth adjustment and universal adjustment and guidance. One set of mechanism realizes three functions, however, the height adjustment of the support wheel is at the front end of the machine, and the driver is at the rear end of the machine, which makes it inconvenient to adjust the tillage depth

In order to take into account the guiding effect at the same time, a universal device is installed between the support wheel and the support frame, so the support wheel is usually designed to be small and narrow. , the support wheel is easy to sink, resulting in the loss of the above functions, which makes the control more difficult and the work quality lower

[0003] At present, the variable speed transmission system applied to the pastoral management machine is mainly composed of two sets of transmissions, the driving transmission for driving the machinery and the working device transmission for driving the working device. The power is transmitted from the engine to the main clutch through the pulley, and the main clutch transmits the power to the The power input shaft of the travel transmission and the input shaft of the transmission of the working device; the travel transmission is equipped with a speed adjustment device and a deceleration device, and some models with excellent performance are also equipped with a jaw clutch mechanism, and the transmission of the working device is usually equipped with a jaw clutch. , deceleration device; however, since the speed of the power input shaft of the driving transmission is about 100-200r / min, the applicable speed of the transmission of the working device is 200-300r / min, and the speed of the engine is about 2400-3000r / min; usually the speed of the driving transmission and the transmission of the working device The input shaft needs to be driven by a first-stage pulley, and its speed is 1200-1500r / min; therefore, the two sets of transmissions need to reduce the speed by 1 / 10 and 1 / 6 respectively. Big

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