RU2185046C1 - Sod drill - Google Patents

Abstract

FIELD: agricultural engineering. SUBSTANCE: sod drill has rotavator section with working members made in the form of L-shaped knives and equipped with sod tillage depth regulating mechanism. Rotavator section is mounted on frame and covered with housing. Seed guides, seed box with seeding units and covering rolls are arranged in housing rear part. L-shaped knives are disposed on outer and inner sides of rotavator section disks and are equipped with tine, wing with bent part, cutting edges and rear edge. Wing bent part is made trapezium-shaped and is bent upward at right angle with respect to tine. Sod tillage depth regulating mechanism may be made in the form of bracket adjustable in vertical plane and equipped with supporting skid mounted on rotavator section. Drill of such construction is used for sowing grass seeds into sod. EFFECT: compact and simplified construction, reduced power consumption, improved quality of sod tilling and sowing grass seeds. 2 cl, 4 dwg

Description

 The invention relates to agricultural production, in particular to seeders and combined units for sowing grass seeds in turf.

 A combined unit for tillage and sowing is known, containing disk working bodies sequentially connected on the frame, cultivators, a milling drum section with a casing and a seed sowing device, and a packer roller. Disc working bodies are hinged to the frame and connected in pairs by articulated transverse rods. Disk working bodies cut the edge of the groove in the plane of the extreme points of the wings of the knives of the milling section, and cultivators soften the soil in the area of the racks (disks) of the milling drum (A. S. USSR 1722272, class A 01 B 49/06 / Vorobev V.I. and other (USSR). - 3 pp., ill.).

 The disadvantage of this design is its complexity, metal consumption and high traction resistance due to the use of Cherenkov type cultivators.

 The closest in technical essence to the proposed invention is a sodder seeder for cavity sowing of grass seeds (RF Patent 2109424. Sod seeder / Sysuev V.A. et al. (RF). - 5 pp., Ill.).

 The seeder has disk knives sequentially located on the frame, a milling section with working elements in the form of L-shaped knives, which has a mechanism for adjusting the depth of sod processing and is closed by a casing, in the back of which there are seed guides, a seed box with sowing machines and rolling rollers. On the outer sides of the disks of the milling section, ring-shaped knives are installed with an outer diameter exceeding the diameter of the circle described by the extreme points of the blades of the L-shaped knives and with an inner diameter equal to or greater than the diameter of the disks of the milling section.

 The mechanism for adjusting the depth of processing the turf is made in the form of a height-adjustable bracket with a support roller, on both sides of which are mounted disk knives located in the same planes with circles described by the extreme points of the blades of the L-shaped knives mounted on the inner sides of the disks of the milling section.

 The packer rollers are placed across the working width between the tracks formed by the ring-shaped knife and the circular knife.

 The disadvantages of this seeder are the high energy consumption of milling sod, high metal consumption, cumbersomeness, as well as the complexity of manufacturing ring-shaped knives of the milling section.

 The invention is aimed at solving the following problem: the creation of a compact seeder for sowing grass seeds in a turf with less energy and metal consumption with high quality processing of turf and sowing grass seeds.

 The problem is solved due to the fact that the sod seeder contains a milling section sequentially located on the frame with working elements in the form of knives, which has a mechanism for adjusting the depth of sod processing and is closed by a casing in the back of which there are seed guides, a seed box with sowing machines and pressurizing rollers, knives of the milling section are L-shaped with the wing part bent parallel to the upright.

 When the seeder sod blades of an L-shaped milling section are cut, the sod layer is cut in width and depth in the zones of the extreme points of the blades of the L-shaped knives. Due to this, energy costs for the operation of the milling section are reduced, the quality of sod processing is improved, and tear pieces of sod from the edges of the processed tape are not observed. Thus, the main part of the energy consumed by the milling section is directed to grinding L-shaped knives of the chopped sod tape. Seeds are sown in a layer of cultivated soil from a seed box by means of sowing machines and seed guides. Further, the soil in the treated strip of sod is compacted by packer rollers.

 Thanks to the installation of L-shaped knives on the disks of the milling section, there is no need for a separate structural element for cutting the turf, in the mechanism of its mounting on the frame or on the working body of the seeder, and it remains only to justify the height of the bent part of the wing of the knife by feeding the turf to the cutter knife. Due to the bent part of the wing, the L-shaped working bodies of the milling section cut and grind the ribbon of sod of constant size without tearing pieces of sod from the edges.

 In addition, the forcefully rotating working body of the L-shaped milling section cuts the borders of the tapes in the turf more efficiently and with lower energy consumption.

 The combination of the above essential features provides a solution to our task and greatly simplifies the design of the unit, reduces metal consumption, energy consumption and traction resistance of the sod sowing machine, while the quality of sod processing and seed sowing is high.

где Н - высота отогнутой части крыла ножа;
π = 3,14;
Д - диаметр фрезы;

скоростной параметр;
ω - угловая скорость ножа фрезы;
V - поступательная скорость сеялки;
z - число ножей фрезы, размещенных в одной плоскости.The predominant embodiment of the bent portion of the wing of the L-shaped knife is offered in the form of a trapezoid with a height H, bent upward to the knife stand at a right angle, and

where H is the height of the bent part of the wing of the knife;
π = 3.14;
D is the diameter of the cutter;

speed parameter;
ω is the angular velocity of the cutter knife;
V is the translational speed of the seeder;
z is the number of cutter knives placed in one plane.

 The advantages of performing the bent part of the wing of an L-shaped knife of this shape are the low energy consumption of milling sod, low metal consumption, as well as the ease of manufacture with high quality processing of sod and sowing grass seeds.

 Thus, the set of essential features, taking into account the particular, predominant form of the structural design of the L-shaped knives, will lead to the preferred form of the sod planter.

 Figure 1 shows the General structural and technological scheme of the turf seeder; in FIG. 2 - layout of the working bodies of the sodder seeder, top view; figure 3 - knife milling section, side view; figure 4 - diagram of the knife of the milling section.

 The sodder seeder contains a frame 1, on which the milling section 2, a seed box with sowing devices 3, and rolling rollers are located 4. The milling section 2 has working bodies in the form of two disks 5, with L-shaped knives 6 installed on their outer and inner sides, and there is also a mechanism for adjusting the depth of sod processing, for example, in the form of a height-adjustable bracket 7 with a support ski 8. Each L-shaped knife 6 contains a rack 9, a wing 10 with a bent part 11, cutting edges 12, 13, 14 and the rear edge 15. The height of the bent portion 11 of the wing 10, substantiated The cutter, which is fed by the knife to the knife, has the shape of a trapezoid and is bent upward at a right angle to the stand 9. The working bodies of the milling section 2 are closed by a casing 16, the seed rulers 17 are installed in the back of it. The pressure on the soil of the milling section 2 and press rollers 4 is adjustable springs 18 and 19, respectively.

 The seeder sod works as follows.

 When moving the seeder sod, the L-shaped knives 6 of the milling section 2 move along an elongated cycloid (trachoid) 20 and the bent portion 11 of each knife cuts a layer of sod (a) along the length (AB) equal to or greater than the supply of sod to the cutter knife. Due to this, tapes of the processed turf with even lateral borders remain on the field surface. The depth of tillage is regulated by changing the length of the bracket 7 of the mechanism for adjusting the depth of cultivation of the turf. Seeds are sown into the treated soil layer from the seed box 3 by means of seed guides 17. The soil in the treated strip is compacted by packer rollers 4.

 Compared to the prototype, the turf seeder is compact, less energy consuming and metal consuming with high quality turf processing and sowing of grass seeds.

Claims (2)

 1. A sodder seeder, containing a milling section sequentially located on the frame with working elements in the form of knives, having a mechanism for adjusting the depth of sod processing and closed by a casing, in the back of which there are seed guides, a seed box with sowing devices and rolling rollers, characterized in that the knives made L-shaped with a wing portion bent parallel to the upright. 2. The seeder sod according to claim 1, characterized in that the part of the wing bent parallel to the upright is made in the form of a trapezoid with a height H, moreover

where H is the height of the bent part of the wing of the knife;
π = 3.14;
D is the diameter of the cutter;

speed parameter;
ω is the angular velocity of the cutter knife;
V is the translational speed of the seeder;
z is the number of cutter knives placed in one plane.

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