GR1009047B - Plough aided by a suspension ring-type lamella easily adaptable to new and old plough constructions - Google Patents

Abstract

Novelty: a suspension ring-type lamella liable to be adapted to new or old ploughs is disclosed Purpose: to prevent the breaking of plough’s connecting and structural parts when meeting strong obstacles. Technical features: the invention proposes a simple and cheap manner to convert ordinary ploughs into ploughs aided by suspension spring-type lamella adaptable to the same frame, bases and small-sized triangular base whereon there are firmly screwed the triangular bases- mouldboards Γ, the plowshares Y, the land sides Φ, and the metal termination T. The screws (2,3,4) are eliminated and only the big basic pin 1 is kept to retain the base of the plough Σ, the small triangular base P being rotating around it. A suspension spring-type lamella is adapted to the backside of each plough’s base Σ so that the soil resistance torque is conveyed,via the security screw A, from the plowshare Y to said lamella. This security screw A adjoins and compresses the lamella E; being firmly screwed on the metal termination T, it protects the whole system from potential damage and normalizes tillage.

Description

Plow with susta-type plate assist and easy adaptation to new and old plow designs

Introduction

One of the most basic tools of agricultural tractors is the harrow, with which the fields are plowed. During the plowing process, the windrowers encounter strong obstacles, e.g. stones, resulting in their breakage or the breakage of the plow links (Figure 1) at the points of connection of the yoke (Y) with the triangular tipper base (C) or of the triangular tipper base (C) with the plow base (S) or the connections (B) between the base of the plow and the entire body-frame of the plow. These connections are made between the aforementioned parts with pins or screws from 20mm to 10mm thick. At the same time, jumping over obstacles requires continuous bouncing, which, apart from damage to the connections of the plow parts and to the plow itself, leads to uneven and not deep plowing.

Problem to be solved - improving technology and capabilities

Advanced type plows often use hydraulic assistance for each U-triangular base-reverse (Y-C) system whether they are 3-uin, 4-uin, etc. plows or use spring systems adapted in various ways to each u-in-triangular base -reverser (Y-C). These systems allow the retreating oscillation of the system that supports the plow when it encounters obstacles or hard ground and at the same time due to this oscillation the plowing is facilitated, the plow reaches greater or optimal depths reducing accidents and the breakage of links, glues etc. in plow system.

These systems or types of plows are rather highly complex in construction, greatly increase the cost of the plow, and make it very difficult to impossible to adapt an old type of plow to a spring assisted one. They also seriously change the construction philosophy of the entire plow from the original classic plow design, so that it is impossible for new plow manufacturers to adopt without great expense this type of flexibility in the plow system.

Description of the present invention

The present invention proposes a simple and cheap way (with the minimum change in the construction characteristics of the plow) that is applied to any system (plough base-triangular base-reversal-fabric (S-G-Y)), whatever they may be on the plow frame. Keeping the frame (K) and the plow bases (S) the same, the same triangle-reverser bases (C) and tines (Y) and the same links (1,2, 3, 4 and (B) ) by simply incorporating a blade (E) on the back (exactly opposite to the plowing direction) of each base (S) of the plough, can be modified into a blade assisted plough.

In particular, figure 1 shows a very simply modified plow. Each plow base (S) is attached with screws (B) to the plow body-frame. The system has as many plow bases (S) as there are plowshares (Y) (eg 3-hyno, 4-hyno, etc.). The triangular base-reverse-fabric system (C-Y) is firmly screwed onto a small triangular base (P), as is the headstock (Φ) which helps in straight plowing without oscillations. This small triangular base (P) is screwed to the base of the plow (S) with the screws or screws (1,2,3,4).

In the present invention the small triangular frame (P) is connected to the base of the plow (S) only with the basic screw or pin (1), 20mm thick. Around this screw it can be rotated together with the entire uni-triangular base-inverter-header (Y-C-F) system, once the screws (2,3,4) are completely removed. At the other end of the triangular base-wool system (C-Y), there is the usual metal finish (T) between which and on the triangular base (P) the plow base (S) slides and screws. In the proposed modification, the metal finish (T) is not firmly screwed to the base of the plow (S), but rests freely through a screw (A), only 7mm thick, on a plate (E) which is placed on the back of the base of the plow (S ) (exactly on the opposite side from the plowing direction) and constitutes the innovation proposed here. The blade (E) is about as long as the base of the plow (S), 30mm to 50mm wide (about the width of the base (S)), optimally 40mm, and 5mm to 12mm thick, optimally 10mm. The shaft (Y) encountering the changing soil resistance during plowing, pressure-relaxation (Π— X) in figure 1, can rotate around the screw (1) and this changing force due to the free rotation around the screw -pin (1) is transferred and continuously exerted on the susta-type plate (E), through the pin-screw (A), causing the plate to be compressed-relaxed. The screw (A) also has the role of safety in the event that the resistance of the iron is so great as to fully compress the plate (E) and threaten to break the links. In this case, the fine screw is destroyed and the cloth rotates freely in the direction (Π), avoiding the obstacle and without causing damage to the cloth (Y), the triangular base-turner (C), the plow base (Σ) and the links between them. At the same time, the constantly changing oscillation of the system on the susta-type plate, helps the smooth flow in plowing and the proper penetration of the wool into the ground each time, so that even the breakage of the thin safety screw is extremely rare.

As you can understand, the addition is done very simply on each base of the plow (S), it is cheap and depending on the tightening of the screw (D) that holds and presses the plate on the back of the base of the plow, we can also adjust its curvature of the susta type plate (E) and therefore also the tension of the beam (Y) with respect to the ground.

Example 1.

In a 4-arm plough, where each arm-triangular base-turner (Y-C) reaches an average plowing depth of 300mm and a plowing width of 300mm, plates (E) of length equal to the length of of the base of the plow (S) 1000mm, 8mm thick, and 50mm wide, as well as the width of the base of the plow (S). The single bolted triangular base-inverter-glass-header and metal trim (G-Y-F-T) system remained firmly bolted to the small triangular base (P). The small triangular base (P) was held on the plow base (S) only by the central screw (1), 20mm thick on the plow base (S) while the others (2,3,4) were removed, allowing the system to rotate around the pin-screw (1). Finally, at the end of the metal finish (T) which is also firmly connected to the small triangular base (P) and by construction embraces the base of the plow (S) from the rear side, the safety screw (A), 7mm thick, was placed. so that it rests-presses the plate (E) towards the back of the base (S), (plate compression gap in the style of the screw (A), 20mm) when the web (Y) finds the resistance of the ground. The plow was successfully used in demanding soils (relatively barren, with the presence of stones, rocks) plowing more than 100ha having only one breakage of the safety screw (A) which was repaired on site (adding a new screw (A) within 2 minutes by the operator of the agricultural tractor). At the same time, faster and smoother plowing was observed, as well as deeper in the places where the ground was soft. The obstacles were jumped without creating damage to the structural parts of the plow and the links between them.

Claims (5)

1. The conversion of the construction of new or existing plows of agricultural tractors without a major change in their design and with an easy and economical conversion of them, to assisted plows of the susta protection type when: in the same frame of the plow (figure 1) and bases of the plow (S), the same triangular bases, deflectors (C) and fins (Y) and the same small triangular base (P) on which are firmly screwed: the triangular bases-flippers (C), fins (Y), rectifiers (Φ) and the metal finish (T). The triangular base support screws (2,3,4) are removed and only the large main pin (1) is retained which holds the plow base (S) and around it the small triangular base (P) rotates. A spring-type plate (E) is placed on the back of each plow base (S) to which it is carried by means of the safety screw (A) which rests against and compresses the plate (E) and is firmly screwed to the metal end (T), the torque from the resistance of the soil to the weed (Y), protecting the entire system from damage (in the last case with its breakage) and smoothing the tillage. 2. Claim 1 for different lengths, widths, curvatures and thicknesses of the blade (E) depending on the sizes of the plow 3. Claim 1, for different values in the thickness of the two support screws or bolts (1) and safety (A). 4. Claim 1, applicable to various types and sizes of plows (3-way, 4-way, etc., as well as for various plowing depths and widths) 5.    Claim 1, with adjustable tension of the blade by means of the screw (D) supporting the blade (E) on the back of the plow base (S).