RU231546U1 - SUPPORT AND DRIVE WHEEL OF A MANUAL PRECISION SEEDING DRILL - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to the working bodies of manual precision seeders.

The technical result of the utility model is an improvement in the quality of work on various soils.

The technical result is achieved due to the fact that twelve lugs are distributed with the same angular pitch, each lug is a nut welded to the sidewall of the rim and a pointed stud screwed into it from the side of the wheel mounting hole with the ability to change the length of the part of the stud protruding beyond the generatrix of the rim.

A support and drive wheel of a manual precision seeder, including a disk with a mounting hole, a rim and radially directed lugs attached to the rim with alternation on the right and left sides, wherein twelve lugs are distributed with the same angular pitch, each lug is a nut welded to the side of the rim and a pointed stud screwed into it from the side of the wheel mounting hole with the possibility of changing the length of the part of the stud protruding beyond the generatrix of the rim.

Description

The utility model relates to agricultural engineering, in particular to the working bodies of manual precision seeders.

A manual pneumatic precision seed drill is known [Author's Certificate RU patent No. 126556, IPC class A01C 7/02, 2013], consisting of a frame with wheels, a coulter located on the frame, a seed hopper and a pneumatic seeding device containing a seeding disk with holes, a compressor, a collector, and a seed pipe. A disadvantage of the known seed drill is the lack of lugs on the drive wheel. As a result, the drive wheel rolls along the soil prepared for sowing with slipping. The slip coefficient along the path length is variable, which causes inconsistency of the rotation frequency of the seeding disk driven by the wheel and, as a consequence, inconsistency of the distance between the sown seeds in a row.

Also known is a manual precision seed drill [Author's Certificate RU patent No. 16424, IPC class A01C 7/02, 2001], comprising a hopper with a metering shaft and a movable brush, a handle, a coulter and replaceable wheels on the seeder axle with lugs that are part of the generatrix of a cylindrical surface, bent at a right angle to the tangent surface.

The disadvantage of this seeder is that the presence of two support-drive wheels complicates the design and leads to repeated rolling of the support wheels on the already seeded part of the plot when sowing with narrow row spacing. At the same time, the lugs create a ridged surface of the field and disrupt the depth of seed placement.

The closest analogue to the claimed one, adopted as a prototype, is the support and drive wheel of the DB-S01-1 seeder, sold by the Scientific and Technical Center Agrosektor, Ryazan [Manual precision seeders for vegetables and other crops. Internet resource, https://agrosektor23.ru/seialki-ruchnye-tochnogo-vyseva/?y_ref=none&yclid=50096801950728191, (date of access 11.02.2024)], Fig. 1, including a disk 6 covered with elastic material 8 and soil lugs in the form of rods 7 welded to the side surfaces of the disk.

The disadvantage of the prototype is the low quality of work. On soils of different mechanical composition and different looseness, the adhesion force of the lugs to the soil varies in magnitude, which leads to a different coefficient of slip of the support-drive wheel, a different rotation frequency of the seeding unit disk driven by the wheel, and a change in the distance between the sown seeds in a row.

The technical result of the utility model is an improvement in the quality of work on various soils.

The technical result is achieved due to the fact that twelve lugs are distributed with the same angular pitch, each lug is a nut welded to the sidewall of the rim and a pointed stud screwed into it from the side of the wheel mounting hole with the ability to change the length of the part of the stud protruding beyond the generatrix of the rim.

The specified set of essential features ensures that the claimed support-drive wheel of a manual precision seed drill has new properties that are different from the prototype.

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

Fig. 1 shows a view of the prototype, Fig. 2 shows a diagram of the claimed support-drive wheel of a manual precision seed drill, side view, Fig. 3 shows a diagram of the lug and its attachment to the wheel rim.

A support and drive wheel of a manual precision seeder, comprising a disk 1 with a mounting hole 3, a rim 2 and radially directed lugs attached to the rim with alternation on the right and left sides, wherein twelve lugs are distributed with the same angular pitch, each lug is a nut 5 welded with a welding seam 9, Fig. 3, to the side of the rim 2 and a pointed stud 4 screwed into it from the side of the wheel mounting hole with the possibility of changing the length of the part of the stud protruding beyond the generatrix of the rim.

The manual precision seeder works as follows.

Before work, depending on the type of soil, change the length of the part of the soil-engaging pins that protrudes beyond the rim. When working on loose sandy and sandy loam soils, to increase traction, increase the length by screwing pins 4 into nuts 5, and on loamy soils, on the contrary, decrease the length.

When the seeder is rolled manually by the seeder, the support-drive wheel rolls on the soil with its rim 2. In this case, the ends of the studs 4 of the lugs are alternately driven into the soil, additionally loosening it and preventing the wheel from slipping. The weld seam 9 ensures the strength of the fastening of the lug nut to the wheel rim. The number of lugs and their dispersion with the same angular pitch ensures the constant simultaneous presence in the soil of at least one of their studs on each side of the rim, which ensures reliable rolling of the wheel without slipping and the stability of the rectilinear movement of the seeder.

Due to the absence of wheel slip on the soil, the number of its revolutions per unit of distance remains constant, the disc of the seed drill's seeding apparatus driven by the wheel also makes a constant number of revolutions per unit of distance, and the distance between the sown seeds remains constant when sowing on any type of soil

Thus, the stated technical result is achieved.

Sources of information:

1. Author's certificate RU patent No. 126556, IPC class A01C 7/02, 2013.

2. Author's certificate RU patent No. 16424, IPC class A01C 7/02, 2001.

3. Manual precision seeders for vegetables and other crops. Internet resource, https://agrosektor23.ru/seialki-ruchnye-tochnogo-vyseva/?y_ref=none«&yclid=50096801950728191, (date of access 11.02.2024)

Claims (1)

A support and drive wheel of a manual precision seeder, comprising a disk with a mounting hole, a rim and radially directed lugs attached to the rim with alternation on the right and left sides, characterized in that twelve lugs are distributed with the same angular pitch, wherein each lug is made in the form of a nut welded to the side of the rim and a pointed stud screwed into it from the side of the wheel mounting hole with the possibility of changing the length of the part of the stud protruding beyond the generatrix of the rim.