RU2273975C1 - Manually operated cultivator - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: cultivator has hollow tine and electric engine for drill, said engine being fixed on tine and connected to drive shaft coupled through toothed transmission to horizontal shaft. Toothed transmission is mounted within casing. Working tools similar to cutters are detachably secured on ends of horizontal shaft protruding through casing. Hollow tine of cultivator is formed as straight pipe with flange at its one end for connection to casing of toothed transmission formed conical and to joining unit on its other end for attachment of electric drill. Electric engine for drill is used for rotation of drive shaft equipped at its ends with shanks for respective attachment within electric drill spindle and on drive gear of conical toothed transmission. Electric drill handle is used as electric engine controlling means. Bolts for attachment of cutter knives are positioned so that nuts are arranged at the side of ends of horizontal shaft extending from casing.

EFFECT: improved operating characteristics of cultivator and convenient employment thereof for cultivation of difficult-for-access soil plots and small area soil plots.

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Description

The invention relates to agricultural machinery, and in particular to small-sized mechanical implements for cultivating the soil in household and garden plots.

Known cultivator containing a drive of the working body, made in the form of a horizontal shaft with groups of working elements fixed on it, for example milling cutters, two trims with a brake element and control levers, characterized in that the drive is made in the form of a hollow rack, on the upper flange of which an electric motor is mounted and a pair of gears is located inside the flange, one of which is mounted on the reducer worm shaft located inside the rack, on the lower flange of which the gearbox is fixed, while the milling cutter s, located on both sides of the rack, are mounted on the shaft of the worm wheel of the gearbox, in addition, strips with a brake element and control levers are fixed on the outer side surfaces of the rack (RU patent No. 2116014, A 01 B 33/02, published on July 27, 1998 )

The disadvantages of the known cultivator are increased metal consumption, insufficient maneuverability in cramped conditions, significant dimensions of the working bodies and the weight of the product, difficult transportation conditions. In addition, a worm gear is used in the cultivator, which requires precision gearing and is a type of expensive gear.

The present invention is directed to solving the technical problem of reducing metal consumption and reducing the size of the drive to ensure compactness and the ability to replace the drive.

The technical result of the invention is to improve operational performance and ease of use when processing hard-to-reach and small areas.

The technical result is achieved by the fact that in a manual cultivator containing a hollow rack, on which is mounted an electric motor connected to the drive shaft, which is connected via a gear mounted in the housing to a horizontally located shaft, at the ends of which coming out of the housing, the working elements are removably fixed type milling cutters, as well as an electric motor control element, the hollow pillar is made in the form of a straight pipe with a flange at one end for connecting to the gear housing made conical, and with an attachment node at the other end for attaching an electric drill, the electric motor of which is used as an electric motor for rotating the drive shaft, made at the ends with shanks for fixing respectively in the electric drill spindle and on the pinion gear of the bevel gear, while the electric drill handle is used as motor control, and the bolts of the knives of the milling cutters are located by nuts on the side of the ends of a horizontally located shaft emerging from the housing .

These features are significant and interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

The present invention is illustrated by the specific example presented in the drawings, where:

figure 1 is a General view of a manual cultivator, a cross section;

FIG. 2 is a view A of FIG. 1 on a connection unit; FIG.

figure 3 - section aa in figure 2.

According to the present invention, a manual cultivator is a tool for performing a wide range of agricultural operations:

- continuous loosening of the soil;

- formation of furrows;

- row spacing processing (loosening, weeding, hilling);

- the formation of trunk circles with their embankment;

- digging holes for planting bushes and seedlings;

- digging trenches, etc.

The manual cultivator as a frame contains a hollow rack 1, on which is mounted an electric motor connected to the drive shaft 2, which through a gear 4 mounted in the housing 3 is connected to a horizontally located shaft 5, at the ends of which 6, coming out of the housing, workers are removably fixed milling cutter elements. Each cutter is made in the form of six knives 7, three mounted on each side of the disk 8, on which these 7 knives are bolted 9 tangentially with a deviation back from the direction of rotation of the cutter.

The hollow rack 1 is made in the form of a straight pipe with a flange 10 at one end for connecting to a gear case 3 made of a conical gear and with an attachment unit at the other end for attaching an electric drill 11 (not shown completely), the electric motor of which is used as an electric motor for rotation the drive shaft 2. The drive shaft 2 is made at the ends with shanks 12 for fixing, respectively, in the spindle 13 of the electric drill 11 and on the pinion gear 14 of the bevel gear.

The electric drill handle is used as an electric motor control element.

The bolts 9 of the attachment of the cutter knives are located by nuts 15 on the side of the ends of a horizontally located shaft emerging from the housing, which prevents the winding of plant stems on the hub. Each bolt fastens two knives at the same time, while the knives are mounted on the cutters so that when they are installed on a horizontal shaft, these knives are mirrored relative to the axis of the hollow rack 1.

The connection unit is intended for fastening the electric drill to the rack. This unit includes a receiving cup 16, calculated by the inner diameter for installing the bow of a particular electric drill, for example, IE 1023. The power characteristics of the electric drill determine the power of the cultivator itself. By changing the type of electric drill, you can adjust the power on the cutters. After installation in the glass by turning the electric drill, the groove is combined inside the spindle and the pen on the shank of the cone so that the drill fits snugly on the shank of the drive shaft 2. The shank is pressed against the electric drill spindle by a spring 17 located between the two washers 18.

Then, the grips in the form of L-shaped levers 19 are rotated, pivotally mounted on a rack and having a screw hole 20 in their body. After the levers are turned in the direction of entering their free ends into the through grooves in the wall of the receiving cup (Figs. 2, 3), the bolts 21 with washers 22 are screwed through the radial element of the rack into the screw hole of each lever. The levers are locked from turning. Since the free ends of these levers penetrate through the grooves in the wall of the glass into the cavity of this glass, they interact with the body of the electric drill, preventing it from leaving the glass.

The present invention allows to obtain a compact cultivator with a replaceable electric motor, which is an electric drill. The cultivator is controlled by analogy with the electric drill control. Holding the electric drill by the handle, press the button on the electric drill handle, which provides power to the electric motor, which drives the drive shaft and the bevel gear of the gear transmission. When the mills rotate, the cultivator moves away from the operator. Therefore, the magnitude of the speed of movement and the magnitude of the deepening of the cutters into the soil is regulated by the resistance value from the side of the operator himself, which he applies to the cultivator in the direction opposite to the direction of movement of the cultivator.

The present invention is industrially applicable, as it can be manufactured using known technologies used in mechanical engineering.

Claims (1)

A manual cultivator containing a hollow rack on which an electric motor is connected, connected to the drive shaft, which is connected via a gear mounted in the housing to a horizontally located shaft, at the ends of which coming out of the said housing, milling cutters and a control are removably fixed an electric motor, characterized in that the hollow rack is made in the form of a straight pipe with a flange at one end for connecting to the gear housing made of a conic, and with a node connections at the other end for mounting the electric drill, the electric motor of which is used as an electric motor for rotating the drive shaft, made at the ends with shanks for fastening respectively in the electric drill spindle and on the pinion gear of the bevel gear, while the electric drill handle is used as the electric motor control element, and bolts of fastening of knives of mills are located so that the nuts are located on the side of the ends of a horizontally located shaft coming out of the housing but.

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