Earth working – Driven from or guided by stationary object – or anchored
Patent
1987-07-16
1990-07-31
DeMille, Danton D.
Earth working
Driven from or guided by stationary object, or anchored
172292, 111200, 901 21, 280 285, 305 34, A01B 5100, B25J 1100, B62D 5700
Patent
active
049443534
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to the agricultural machinery industry and more particularly to agricultural machines for various agricultural operations in the field: soil cultivation, sowing, crop cultivation and harvesting.
It is most advantageous to use the given type of machines on wetted and overwetted soils where the implements with an increased tractive force are needed.
PRIOR ART
At present different agricultural machines are used for cultivation of soil, sowing, crop cultivation and harvesting, comprising a self-propelled chassis, an attachment carrying a working member for performing agricultural operations in the field and means for controlling the working member.
A disadvantage of all the above-mentioned machines resides in an excessive compaction of soil resulting in disturbing the structure thereof which afterwards has an adverse effect on the crop yield.
Known to the prior art is, for example, an arrangement for placement of a fluid material in the soil, comprising a sowing apparatus, a propelling device for the sowing apparatus, a hopper for a fluid seed material and a delivery system connected by a pipeline with an air chamber (cf., for example, USSR Inventor's Certificate No. 257,899, cl. A01C 15/04, 1968). Such an arrangement is ganged up with a heavy tractor which involves a substantial compaction of soil.
Besides the arrangement does not possess a sufficient capacity for performing the above-mentioned agricultural operations.
Also known to the prior art is an arrangement for cropping, comprising a hopper for a seed material, a drive drum secured on a body, an elastic perforated element, a sowing apparatus and a harvesting mechanism (cf. USSR Inventor's Certificate No. 803,885, Int. cl. A01 C 7/00, 1979).
The given arrangement is also moved over a cultivated area by a propelling device based on a tractor and also suffers from the same disadvantages. Besides this arrangement has limited engineering capabilities because of a low tractive force developed by the propelling device. The use of the given arrangement is limited by a gradient of the crop area and a degree of soil preparation.
Also known in the prior art is an agricultural machine for sowing loose materials, comprising a self-propelled chassis, an attachment carrying the sowing apparatus and means for controlling the same (cf. USSR Inventor's Certificate No. 908,262, IPC A01 07/08, 1979).
The machine is ganged up with a self-propelled chassis and moved on the field sowing the required material. When the entire machine-and-self-propelled chassis assembly is moved on the field the soil is over-compacted under the action of the entire mass of the machine-and-self-propelled chassis assembly and the seed material contained therein, and the consumption of power by the moved machine is increasesd.
The machine cannot be used on wet soils, as its movement on the field becomes impossible. The operator is always in the zone of the working member operation which has an adverse effect on his fitness to work. A low tractive force does not allow the operating width to be increased for respective agricultural operations which extends the terms of the farm work completion.
It is an object of the present invention to eliminate the above-mentioned disadvantages of the arrangements heretofore described.
BRIEF DESCRIPTION OF THE INVENTION
It is the principal object of the invention to provide, in an agricultural machine, an arraangement for displacement of the working member over the surface of a field with the view to reduce the specific ground pressure, as well as to increase the tractive force on a working member.
This object is achieved by that an agricultural machine comprising a self-propelled chassis, an attachment carrying a working member with a rod for performing agricultural operations in the field and means for controlling the working member, according to the invention, is provided with an arrangement for displacement of the working member over the field surface, comprising a hermetic chamber with a port, a source of
REFERENCES:
patent: 3178732 (1965-04-01), Stibitz
patent: 3753409 (1973-08-01), Frazier
patent: 3757788 (1973-09-01), Renfroe
patent: 4577436 (1986-03-01), Dalle
Kryazhevskikh Nikolai F.
Shapovalov Jury P.
Shishkin Viktor V.
DeMille Danton D.
Trest "Juzhvodoprovod"
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