RU2239975C2 - Root undercutting apparatus - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: root undercutting apparatus has frame and bracket pivotally mounted on frame, and device for restricting angular motions of bracket and setting bracket at an angle of 1-25 deg by means of hydraulic cylinder pivotally connected with frame. Rear restricting device is made adjustable. One of wheels of root undercutting apparatus is spring-loaded. Contacts are positioned on frame and on spring-loaded wheel tine so as to be closed. Contacts are connected with current indicator and current source.

EFFECT: simplified construction and wider operational capabilities.

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Description

The invention relates to agricultural and forestry engineering, and in particular to technical means for cutting and digging seedlings in forest, fruit and ornamental nurseries.

Known working body of a digging machine, including a hinge hinged to the frame and a pivotally controlled controlled lifting-lowering cylinder [1].

A disadvantage of the known working body, adopted as a prototype, is limited functionality due to the constancy of the angle of penetration into the soil, which allows it to be used either on a digging or on an undercut (without a shaking device).

The technical result of the invention is the expansion of functionality, i.e. the use of technical equipment in two technological operations - cutting and digging of plants. At the same time, you need to know that when digging, the bracket is installed at a large angle to the horizon to ensure loosening of the formation with plants, and when trimming it is practically zero, because loosening of the reservoir should be minimal.

The specified technical result in the implementation of the invention is achieved by the fact that in the root cutter containing the frame on which the bracket is pivotally mounted, limiters of angular movement of the bracket are mounted with the possibility of installing the bracket at an angle of 1-25 ° by means of a hydraulic cylinder pivotally connected to the frame, and the rear limiter is made adjustable , one of the existing support wheels of the root-cutter is spring-loaded, while contacts with the possibility of closing, data with indicator and current source.

The essence of the proposed technical solution is illustrated by the drawing, where in Fig. 1 is a side view of the gun, in Fig. 2 is a diagram of a spring-loaded implement wheel with an indicator connecting circuit (signal light).

The root cutter consists of a frame 1 with an attachment 2, support wheels 3 and a cutting bracket 4. The cutting bracket is pivotally mounted on the frame 1 and connected to it by means of a pivotally mounted controlled hydraulic cylinder 5. Angular displacement limiters 6 and 7 are installed on the frame 1 of the root cutter, restricting movement cutting brackets 4 from a horizontal angle of 1 ... 2 ° to 10 ... 25 °, of which the rear stop 6 (along the way) is made adjustable. One of the wheels is spring-loaded using a spring 9. On frame 1 and rack 8 of the spring-loaded wheel, contacts 10 and 11 are mounted, closed through an indicator (signal light) 12 with a current source 13. The root cutter travel depth is adjusted by changing the position of the support wheels in height (by Fig. not shown).

The proposed root cutter works as follows.

I variant - pruning of roots (root-cutter)

A tractor with a mounted root cutter drives into the processed tape. The tractor driver, using the tractor’s hydraulic valve, controlling the hydraulic cylinder 5, moves the bracket back to contact with the stop 6, thereby installing the bracket at an angle of 10 ... 25 °, which ensures quick clamping of the bracket into the soil (hydraulic valve handle after the spring rests after the bracket rests in the limiter 6 will automatically return to neutral). Having started the movement of the tractor, the tractor operator lowers the hitch of the tractor with the root cutter to the "floating position", which ensures that the bracket is deepened to a working depth on the path 1 ... 1.5 m. After the support wheels 3 come into contact with the soil, the resistance to movement continues to deepen the bracket into the ground, compresses the spring 9, closing the contacts 10 and 11 of the electric circuit, turns on the indicator 12. The tractor driver, using the tractor’s control valve, controls the hydraulic cylinder 5, moves the bracket 4 to the stop 7 in the direction movement, thereby ensuring an almost horizontal position of the bracket (1 ... 2 ° to the horizontal), while the valve handle under the action of the return spring after the bracket rests on the limiter 7 will automatically return to tral position.

The location of the share of the bracket at an angle of 1 ... 2 ° to the horizon provides high-quality cutting of plant roots without loosening the soil.

II option - digging plants (digging bracket)

After deepening the bracket (the bracket is retracted to contact with the limiter 6 and fixed at an angle of 10 ... 25 ° to the horizontal), despite the signal of indicator 12, the tractor driver continues to move the unit, providing undercutting and intensive loosening of the formation. It is possible to change the angle of the bracket by changing the position on the frame of the rear organizer 6.

The proposed root cutter is quite simple in design. Its use is technically and economically feasible, since it will allow one tool to perform two operations - pruning and digging plants, which is especially important for nurseries, where the annual load is relatively small, and will give an economic effect.

Estimated need for root cutter 100 ... 200 pieces per year.

Sourse of information

1. A.S. 818535, Working body of the digging machine, cl. A 01 D 15/04, 1981 (prototype).

Claims (1)

A root cutter comprising a frame on which a bracket is pivotally mounted, characterized in that it is provided with limiters for angular displacement of the bracket with the possibility of mounting the bracket at an angle of 1-25 ° by means of a hydraulic cylinder pivotally connected to the frame, the rear limiter being made adjustable, one of the existing support wheels of the root cutter spring-loaded, while on the frame and the strut of the spring-loaded wheels mounted contacts with the possibility of closure associated with the indicator and the current source.

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