RU228490U1 - SOIL CULTIVATION WORKING BODY - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to soil-cultivating implements for weeding between rows. The soil-cultivating working element includes a paw, a trapezoidal cross-section stand tapering against the direction of movement and having in the front surface at a height greater than the depth of the paw stroke, a horizontal groove with a truncated ellipse profile and serrated sharpening, located on both sides of the paw and connected by a spring-loaded adjustment mechanism to the rear part of the stand, a cleaner consisting of two rollers put on a common horizontal hinge axis with the possibility of rotation and removal, with needles having trapezoidal plates with cutting blades at the end, a sickle-shaped knife with serrated sharpening of the blade, radially mounted on the inner end of the left roller close to the stand, creating a cutting pair with the groove of the stand during rotation, wherein the structure is equipped with a stem lifter made of two spring rods of round cross-section, each rod is attached to the corresponding end of the axis of the rollers of the cleaner with a threaded connection by means of a welded washer, the rods are spatially bent in such a way that they have a lower skid part directed at an acute angle downwards and laterally to the longitudinal axis of symmetry of the paw in front of its toe, a double spring coil at the end and an upper part bent upwards above the trajectory of movement of the rotor needles with cutting blades and laterally beyond the horizontal axis of the hinge with the rotors, and the spring coils of the two rods are connected to each other by an inserted pin with a washer and a retainer. The technical result is a decrease in the damage to cultivated plants. 4 fig.

Description

The utility model relates to agricultural engineering, in particular to soil-cultivating implements for weeding between rows.

A soil-cultivating working element is known [Author's certificate SU patent No. 1683509, IPC class A01B 35/02, 1991], which includes a paw, a stand, a cleaner with needles and a mechanism for connecting it to the stand, and levers connected by an adjustment mechanism.

The disadvantage of this design is one-sided surface loosening of the soil relative to the stand, not suitable for weeding between rows of cultivated plants, an energy-consuming method of cleaning the stand from enveloping weeds by pulling and the lack of a function for crushing weeds on the soil surface.

The closest analogue to the claimed one, adopted as a prototype, is a soil-cultivating working element [Author's certificate RU patent No. 215884, IPC cl. A01B 35/18, A01B 39/18, A01B 39/08, 2023], comprising a paw, a trapezoidal cross-section stand tapering against the direction of movement and having in the front surface at a height greater than the depth of the paw stroke, a horizontal groove with a truncated ellipse profile and serrated sharpening, a cleaner located on both sides of the paw and connected by a spring-loaded adjustment mechanism to the rear part of the stand, consisting of two rollers put on a common horizontal hinge axis with the possibility of rotation and removal, with needles having trapezoidal plates with cutting blades at the end, a sickle-shaped knife with serrated sharpening of the blade, radially mounted on the inner end of the left roller close to the stand, creating a cutting pair with the groove of the stand when rotating.

The technical result of the utility model is a reduction in the damage of cultivated plants.

The technical result is achieved due to the fact that the design has a stem lifter made of two spring rods of circular cross-section, each rod is attached to the corresponding end of the axis of the rollers of the cleaner by a threaded connection using a welded washer, the rods are spatially bent in such a way that they have a lower skid part directed at an acute angle downwards and sideways to the longitudinal axis of symmetry of the paw in front of its toe, a double spring coil at the end and an upper part bent upwards above the trajectory of movement of the rotor needles with cutting blades and sideways beyond the horizontal axis of the hinge with the rotors, and the spring coils of the two rods are connected to each other by an inserted pin with a washer and a retainer.

The specified set of essential features ensures the emergence of new properties in the claimed soil-cultivating working tool that differ from the prototype.

Thus, the declared features of the utility model meet the criterion of “novelty”.

Fig. 1 shows a diagram of a soil-cultivating working element, side view;

Fig. 2 - the same, rear view;

Fig. 3 - side view of the stem lifter;

Fig. 4 shows a view of the stem lifter from above.

A soil-cultivating working element comprising a paw 1 (Fig. 1), a stand 2 of trapezoidal cross-section tapering against the direction of movement and having in the front surface at a height greater than the depth of the paw stroke, a horizontal groove 3 with a truncated ellipse profile and serrated sharpening, a cleaner located on both sides of the paw and connected by a spring-loaded adjustment mechanism 10 to the rear part of the stand, consisting of two rollers 4, 5 (Fig. 2), put on a common horizontal axis 6 of the hinge with the possibility of rotation and removal, with needles 7 having at the end a trapezoidal plate 8 with cutting blades, a sickle-shaped knife 9 with serrated sharpening of the blade, radially mounted on the inner end of the left roller close to the stand, creating a cutting pair with a groove 3 of the stand during rotation, wherein the design includes a stem lifter (Fig. 3, 4) made of two spring rods of circular cross-section, each rod is attached to the corresponding end of the axis of the cleaner rollers by a threaded connection using a welded washer 13, the rods are spatially bent in such a way that they have a lower skid part 14, 15 directed at an acute angle downwards and laterally to the longitudinal axis of symmetry of the paw in front of its toe, a double spring coil 16, 17 at the end and an upper part 11, 12 bent upwards above the trajectory of movement of the needles 7 of the rotors with cutting plates 8 and laterally beyond the horizontal axis 6 of the hinge with the rotors, and the spring coils 16, 17 of the two rods are connected to each other by an inserted pin 18 with a washer and a retainer.

The soil-cultivating working element operates as follows.

During the movement of the working element over the processed tulle, the paw 1 cuts the weeds and performs primary coarse-grained loosening of the soil between the rows. The rollers 4, 5 located behind the paw with their needles 7 with plates 8 go deep into the soil and receive a rotational movement relative to the axis 6. At the same time, the plates 8 with their blades perform secondary, finer-grained loosening of the upper soil layer and crush the weeds on the surface.

Weeds enveloping the stand 2 are caught by the groove 3 and are cut by the sickle-shaped knife 9 with each full revolution of the roller 4. The proposed profile of the groove, the sickle-shaped knife and the presence of serrated sharpening will ensure a reliable and less energy-intensive process of cutting weeds and crop residues. The design of the working element, symmetrical relative to the stand 2, with the arrangement of rollers 4, 5 on both sides of the stand, allows the use of the working element for processing the inter-rows of crops sown in a wide-row manner.

The stem lifter, made of two spatially curved rods of round cross-section, having spring coils 16, 17 connected to each other, allows for careful removal of the vegetative part of cultivated plants from the zone of action of needles 7 with plates 8 and thereby reduces damage to cultivated plants. Thus, the declared technical result is achieved.

Sources of information

1. Author's certificate SU patent No. 1683509, IPC class A01B 35/02, 1991.

2. Author's certificate RU patent No. 215884, IPC class A01B 35/18, A01B 39/18, A01B 39/08, 2023.

Claims (1)

A soil-cultivating working element comprising a paw, a trapezoidal cross-section stand tapering against the direction of movement and having in the front surface at a height greater than the depth of the paw stroke, a horizontal groove with a truncated ellipse profile and serrated sharpening, a cleaner located on both sides of the paw and connected by a spring-loaded adjustment mechanism to the rear part of the stand, consisting of two rollers put on a common horizontal hinge axis with the possibility of rotation and removal, with needles having trapezoidal plates with cutting blades at the end, a sickle-shaped knife with serrated sharpening of the blade, radially mounted on the inner end of the left roller close to the stand, creating a cutting pair with the groove of the stand when rotating, characterized in that the design has a stem lifter made of two spring rods of round cross-section, each rod is attached to the corresponding the end of the axis of the rollers of the cleaner by a threaded connection using a welded washer, the rods are spatially bent in such a way that they have a lower skid part directed at an acute angle downwards and laterally to the longitudinal axis of symmetry of the paw in front of its toe, a double spring coil at the end and an upper part bent upwards above the trajectory of movement of the rotor needles with cutting blades and laterally beyond the horizontal axis of the hinge with the rotors, and the spring coils of the two rods are connected to each other by an inserted pin with a washer and a retainer.