RU169255U1 - TRAILED ATTACHMENT - Google Patents

Abstract

The utility model relates to agricultural engineering, namely to tractor semi-trailer units, allowing to organize wide-sowing sowing combinations of standard seeders. The technical result of the claimed utility model is to ensure the movement of the seeder working with a working width of 3.6 to 4.5 m and the regulation of the required distance between the two internal coulters of different seeders. The hitch attachment comprises a drawbar, a central frame, a chassis with wheels, traverses, a central link, nodes of a three-point linkage of seeders. The nodes of the three-point linkage of the seeders are formed by n brackets and mounted on traverses made of a rectangular pipe. The brackets are made in the form of levers with fixedly fixed rectangular flat plates, the surfaces of which are in contact with the corresponding surfaces of the traverse, and each bracket is movably fixed on the traverse with the help of a corner and fastening elements through the corresponding holes on rectangular flat plates and a corner. 5 cp f-ly.

Description

The utility model relates to agricultural engineering, namely to tractor semi-trailer units, allowing to organize wide-sowing sowing combinations of standard seeders.

When developing and creating agricultural sowing units, the following tasks are set: increasing labor productivity, reducing the number of main production workers (ODA), reducing sowing time, reducing the consumption rate of sowing material, reducing the time of sowing equipment from the transport state to working.

Particular attention is paid to solving problems of reliable fixation of attached equipment both in the transport and in the working position, as well as the convenience of the working process and ease of maintenance.

BACKGROUND

A three-point tractor attachment is known (SU 897132, published January 15, 1982), which is fixedly mounted to the tractor and does not allow adjusting the distance between the attachment.

There is a universal hitch of BPO seeders manufactured by Quivogne (France, http://www.quivogne.at/ru/archive/products/rama-stsepka-bpo/), designed for hanging three seeders of 4 m or two seeders of 6 m, in order to create maximum working width when sowing.

Known mechanical seeder JOHNDEERE 455 manufactured in the USA (http://selhoztehnik.com/seyalka-iohn-deere-455) in 2- and 3-seeder design with a working width of 7.6 m and 10.7 m, respectively. The seeder is hydraulically folding and has a transport width of 4.6 m.

DISADVANTAGES OF ANALOGUES

All of these analogues contain nodes of a three-point linkage of seeders that are fixedly mounted on the traverses and do not allow you to adjust the required distance between the two internal coulters of different manufacturers of seeders, which leads to non-compliance with the required row spacing between the internal coulters and negatively affects the quality of crops. If the row spacing is smaller, then the planting density of plants in this row will be higher, the development of plants will be worse, because for this series of nutrients will be lacking, which will ultimately reduce productivity. When the row spacing is larger than the required, an unused sown area is formed, which also negatively affects the yield of crops.

PROTOTYPE AND DISADVANTAGES

The closest analogue adopted for the prototype is the tractor semitrailer combination D9-120, manufactured by AMAZONE (Germany, http://selhoztehnika.net/products/seyalka-amazone-d9-120-super), consisting of three mechanical mounted on the frame seeders D9-40, with a total working width of 12 m. Owing to the presence of its own chassis on each section, it is possible to achieve high maneuverability and flexibility in operation even in very uneven surfaces. A special Huckepack system lifts all sections if necessary to perform a turn at the edge of the work area or transportation of the device. For more convenient transportation, it is possible to fold the side seeders to reduce the unit width to 6 m. To work with this model, a tractor with a capacity of 240 hp is required, equipped with two hydraulic outlets.

The disadvantage of the prototype is the excess working width (12 m), which when working in fields of 100-150 hectares and a head length of up to 1 km introduces specific inconvenience when making a U-turn. The transport length of 11.4 m is also negatively reflected when moving, especially when exiting from the height of the roadway on the field. The site of the three-point linkage of the seeders in the prototype is fixedly mounted on the traverses and does not allow you to adjust the required distance between the two internal openers of different manufacturers of seeders, which leads to non-compliance with the required row spacing between the internal openers and adversely affects the quality of the crops.

TECHNICAL RESULT

The technical result of the claimed utility model is to ensure the movement of the seeder with a working working width of 3.6 to 4.5 m and the regulation of the required distance between the two internal coulters of different seeders.

The technical result is achieved by the fact that in a trailed mounted device comprising a drawbar, a central frame, a chassis with wheels, traverses, central links, three-point linkage units of seeders, three-point linkage units of seeders are formed by n brackets mounted on crossheads made of a rectangular pipe, while the brackets are made in the form of levers with fixed rectangular flat plates, the surfaces of which are in contact with the corresponding surfaces of the yoke, and each bracket is movably fixed van on the plate via brackets and fastening elements through the respective openings on the rectangular flat plates and corner. Some levers in the brackets are made in the form of L-shaped flat plates, with holes in the form of an ellipse at the end, and other levers, double, are made C-shaped with holes for the central rod. Rectangular flat plates are fixedly fixed on the inside of the levers by welding. Bracket fastening elements on the traverse are made in the form of screws and nuts. Each bracket is fixed on the traverse at a distance corresponding to the adjusted distance between the internal seed coulters. Holes in the form of an ellipse on the levers provide vertical movement of the seeders during operation, copying field irregularities up to 160 mm.

Due to the fact that in the design of the inventive trailed attachment, the three-point linkage assemblies consist of brackets movably mounted on the traverses, it is possible to adjust the required distance between the two internal coulters of the mounted seeders, as well as to adjust the attachment points of the seeders from various manufacturers.

SUMMARY OF THE INVENTION, SUMMARY OF THE INVENTION

In FIG. 1 shows a General view of the inventive device, FIG. 2, 3, 4 - brackets of the three-point hitch assembly of seeders, where the following designations are accepted:

1 - drawbar;

2 - a central frame;

3 - chassis with wheels;

4 - traverses;

5 - central thrust;

6 - nodes of a three-point linkage of seeders;

7, 8 - brackets of a three-point hitch assembly of seeders;

9 - L-shaped lever;

10 - C-shaped lever;

11 - rectangular flat plates;

12 - corner;

13 - fasteners;

14 - holes in flat plates;

15 - holes in the corners;

16 - hole in the shape of an ellipse.

The inventive hitch attachment comprises a drawbar 1, a central frame 2, a chassis with wheels 3, traverses 4, central rods 5, nodes of a three-point linkage of seeders 6. A node of a three-point linkage of seeders is formed by n brackets 7, 8 that are installed on each cross-beam 4. One brackets 7 are made with levers of a L-shaped form 9, and others with levers of a C-shaped form 10 and with corners 12. Rectangular flat plates 11 are fixedly fixed to the levers 9 and 10. Each bracket 7 and 8 is movably fixed on the cross beams 4 using the angle 12 and elements mounted 13 through the corresponding holes 14 and 15 on rectangular flat plates 11 and corner 12. Some levers 9 in brackets 7 are made in the form of L-shaped flat plates, with holes in the form of an ellipse 16 at the end, and other levers 10 are made of double C- shaped flat plates, between which is located the central rod 5. Each crosspiece 4 is made of a rectangular pipe. The surface of the rectangular flat plates 11, fixedly mounted on the levers 9 and 10, are in contact with the corresponding surfaces of the beam 4. The fastening elements 13 of the brackets 7 and 8 on the beam 4 are made in the form of screws and nuts. Rectangular flat plates 11 are fixedly mounted on the inside of the levers 9 and 10 by welding. Each bracket 7 and 8 is fixed on the traverse 4 at a distance corresponding to the adjusted distance between the internal coulters of the seeder. The ellipse-shaped hole 16 on the levers of the L-shaped form 9 provides vertical movement of the seeders during operation, copying field irregularities up to 160 mm.

Each of the two mounted seeders is fixed with the lower axis to the brackets 7 and 8, and the upper axis to the central link 5. Moving along the traverse 4 brackets 7, 8 allows you to adjust the distance between the internal openers of the seeders. Also, the bracket 7 can move along the crosshead 4, allowing you to adjust the optimal operation of the lock closing the crosshead before transportation.

FINDINGS

Movable brackets placed on the cross beams of the inventive hitch attachment allow you to move seeders with a working width of 3.6 to 4.5 m, mounted on brackets and connected by a three-point linkage, and adjust the required distance between the two internal coulters in the open, working, position .

The levers and rectangular flat plate brackets are interconnected by welding and provide a reliable design. At the bottom of the bracket with a L-shaped lever there is an ellipse-shaped hole that allows the seeder mounted on the brackets of the three-point linkage assembly to move vertically during operation, copying field irregularities up to 160 mm.

The brackets are mounted on the horizontal surface of the crosshead and, after connecting with a screw-nut to the corner located on the opposite side of the crosshead, are securely fixed, ensuring stability of the adjusted distance between the internal coulters. In a similar manner, the bracket, which is the middle support of the three-point linkage, is moved and fixed. This design solution allows you to adjust the required distance between the two internal coulters of various seeder manufacturers.

A prototype was made, which is currently undergoing sea trials in one of the farms of the Chuvash Republic.

Claims (6)

1. A hitch attachment comprising a drawbar, a central frame, a chassis with wheels, traverses, central rods, three-point linkage units of seeders, characterized in that the three-point linkage units of the seeders are formed by n brackets mounted on crossheads made of a rectangular pipe, while the brackets made in the form of levers with fixed rectangular flat plates, the surfaces of which are in contact with the corresponding surfaces of the beam, and each bracket is movably fixed to the beam with schyu corner fastening elements and through corresponding holes in the flat rectangular plates and corner. 2. The hitch attachment according to claim 1, characterized in that one of the levers in the brackets is made in the form of L-shaped flat plates with ellipse-shaped holes at the end, and the other double arms are made C-shaped with holes for the central link. 3. The hitch attachment according to claim 1, characterized in that the rectangular flat plates are fixedly mounted on the inside of the levers by welding. 4. The hinged attachment according to claim 1, characterized in that the fastening elements of the brackets on the traverse are made in the form of screws and nuts. 5. The hitch attachment according to claim 1, characterized in that each bracket is fixed on the traverse at a distance corresponding to the adjusted distance between the internal openers of the seeders. 6. The hitch attachment according to claim 1, characterized in that the holes in the form of an ellipse on the levers provide vertical movement of the seeders during operation, copying field irregularities up to 160 mm.

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