ES2352620A1 - Quick grade nude adjustable in height and disc size. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Quick harrow knot, with coupling system (2, 3) removable to the chassis of the machine, together with a shock absorber and a swing arm (5) intended to be coupled with the bushing (7), where the swingarm (5) has at one of its ends a plurality of holes (53) for fixing, by screwing, a fork (6), which in turn has a plurality of holes (61) that correspond to the holes (53) of the arm (5), joining this fork (6) to the hub (7) preferably by welding. The fixing fork (6) has a semicircular area in its lower part for coupling to the hub (7), inclined with respect to the ground preferably 15º c, while in its upper part it has two extensions, which include the holes (61), between which the arm (5) is arranged for its attachment. (Machine-translation by Google Translate, not legally binding)

Description

Knot for quick height adjustable height and disk size

Object of the invention

The present invention consists of a knot of fast height-adjustable harrow, intended to work the land through two discs that penetrate the ground, which is coupled to any machine chassis of any dimension thanks to its hitch system, and that allows the same reuse disk, through its height adjustment, and always with the Optimal inclination for maximum performance.

Background of the invention

They are known in different agriculture devices for land work, where they are used different types of harrow that are mounted on the chassis of the working machine The discs are fixed to the hub and this usually goes fixed to oxycut structures immovably, and some times, without the possibility of disassembling them, for example joining them by welding.

There are some devices that have designed different types of clamps for joining the harrow to the machine chassis. This is the case, for example, of the utility model ES 1066069, which describes a fast harrow support, of the type that incorporates a clamp for fixing to the chassis and a damping group formed by a deformable triangle, and whose arm is fixed by a rear limb - Lower a receiver bushing with one or more cutting discs. Said clamp is constituted by the functional combination of a semi-clamp, the one that joins the arm articulately, and the one that also articulately receives the damping group, which remains constant for any section of the tubular chassis, and a variable angular flange or recess, for its adaptation to different sections of tubular chassis, with the particularity that the aforementioned flange is provided both on its outer face and on its inner side of marginal ribs that stiffen its structure and improve the grip on the tubular chassis in the tightening of the screws that relate the flange to the clamp itself, the flange being provided to incorporate polygonal necks framing the holes for the fixing screws, which immobilize the heads of the
same.

However, as with the rest of the stands currently on the market, these devices show inconveniences as to the expense incurred in the wear of discs. The dragging of the disks on the ground should be done at a certain height and at a certain depth, so that when the discs are worn, there is no other possibility more than change them. In addition, these systems only allow the use of a type of discs, with the limitations that this entails

The assembly and disassembly of the parts results complicated and slow, because for this, we must disassemble the harrow by complete, because these systems are based on fixed systems of only one piece.

Description of the invention

The present invention consists of a knot for fast harrow, which is mounted as a whole in the chassis of any Agricultural machine, with double disc system. This system allows working with various types of discs, since the different jobs, different lands and various crops make it You need to mount different types of discs.

This system allows the regulation of the working height. A screw fork system allows adaptation to any type of chassis already manufactured, varying the position of the screws between the fork and the main arm. In this way, it allows you to raise or lower the working height according to what is convenient
niente

In addition, it allows to mount any type of disc and model of the same in the knot, whether they are saucer discs with highlight or flat plate discs, as well as any diameter.

Using said knot for fast harrow is They get great savings on disk consumption. The fast tier, in its definition, it is a machine that protects the ground by working at about 10 centimeters deep. Thus, if the structure is fixed, when the disk is consumed these 10 centimeters (5 centimeters of radius) becomes unusable. Using the knot of proposed tier, when the disk is consumed 10 centimeters, Screw the fork a screw underneath, getting follow Wearing it. This system allows the same disk can be reused several times, with the consequent saving associated.

Screwable fork system facilitates both the assembly of the pieces, and the disassembly in case of Repair or breakdown. Disassembling the fork prevents disassembly the whole piece, something that currently, no fast tier allows, They are based on fixed systems in one piece.

Specifically, the proposed system comprises a mooring head intended to be attached to the chassis of the head of the machine, aided by a folding tongue that engages, preferably screwed to said mooring head, constituting a kind of clamp that adapts to the dimension of the chassis to which it is intended. In turn, the mooring head is fixed tilting mode, on the top, to a tube for the housing a helical spring, and at the bottom, a arm with fall protection, also tilting.

The arm with fall protection is one of the fundamental parts of the invention. Said arm has a hole zipper that allows height adjustment of the disk. In addition, it includes a stop for fixing the spring and a fall support. Together with said arm, a fork of fixing, with a series of holes coinciding with the holes arranged on the arm, intended for fixing the screws. This fork, in its lower part is constituted by an area semicircular inclined between 13 and 18ºC with respect to the ground and 30ºC degrees with respect to the chassis, optimum angle for the work of the land. This tube will be attached to the bushing, preferably by welding.

Description of the drawings

To complete the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of the practical realization of it, is accompanied as an integral part of said description, a set of drawings where with character Illustrative and not limiting, the following has been represented:

Figure 1 shows an elevation view of the Quick tie knot proposed in the invention.

Figure 2.- shows a perspective view of the folding tongue, integral of the coupling system to the machine chassis

Figure 3.- shows a perspective view of the mooring head, integral of the coupling system to the machine chassis

Figure 4.- shows a view of the tube protector where the spring of the shock absorber assembly is included.

Figure 5.- shows a view of the arm swingarm, where the connection holes for the fork coupling.

Figure 6.- shows a perspective view from the fixing fork, on the upper part, to the arm by screwing, and at the bottom, to the hub by welding, preferably.

Figure 7.- shows an elevation view of the bushing for coupling the discs.

Preferred Embodiment of the Invention

The present invention consists of a knot of fast harrow, of those used to work the land, with huge advantages over existing nodes in the market. By a part, the knot described below is detachable from the chassis of the machine, adapting to anyone regardless of height of the same. Moreover, the described tiered knot provides big savings as far as discs are concerned, since it allows regulate the working height according to the needs, being able to use any type of disc existing in the market.

Said fast tie knot comprises a system coupling (2, 3) to the machine chassis, detachable, attached to a damping group and a swing arm (5) intended for engage with the bushing (7) for fixing at least one disk (1). The buffer group comprises a tube (4) for the housing and Spring protection. The coupling system (2, 3) consists on a mooring head (2) in whose upper part a flip tongue (3), so that the assembly acts as a hitch clamp, adapting to the chassis of any machine.

The swing arm design (5) is a part fundamental of the invention. Said arm (5) has one of its ends of a plurality of holes (53) for fixing, by screwing, of a fork (6), which in turn has of a plurality of holes (61) corresponding to the holes (53) of the arm (5), joining this fork (6) to the bushing (7) preferably by welding, so that the height adjustment of the disks (1) according to the needs, also allowing the reuse of said discs (1).

The union of the swing arm (5) to the rest of elements are performed, on the one hand, to the coupling system (2, 3), specifically to the mooring head (2) through one of its extremes In this area the arm (5) has a fall support (52). On the other hand, the arm joins the buffer group through a stop (51), having holes (53) in its lower part union with the bushing (7) through the fork (6).

The fixing fork (6) is essential for the union of the arm (5) with the bushing (7). It has in its lower part of a semicircular zone for coupling to the bushing (7), preferably by welding, while at the top It has two extensions, including the holes (61), between which the arm (5) is arranged for its union. This fork (6) is responsible for the height adjustment of the discs (1). Depending on which of the fork holes (6) and arm (5) the union is made, one height or another of the disk (1).

Since the optimal work of the land is achieved when the inclination of the discs (1) relative to the ground it is between 13 and 18ºC, the lower semicircular area of the fork (6) will be designed with said inclination, this being preferably inclination of 15ºC.

Claims (6)

1. Quick tie knot, comprising a coupling system (2, 3) to the machine chassis, detachable, attached to a damping group and a swing arm (5) intended to engage with the bushing (7) for fixing of at least one disc (1), characterized in that the tilting arm (5) has at one of its ends a plurality of holes (53) for fixing, by screwing, a fork (6), which in turn has of a plurality of holes (61) corresponding to the holes (53) of the arm (5), joining this fork (6) to the bushing (7) preferably by welding, so that the height adjustment of the disks is possible (1) according to the needs, also allowing the reuse of said discs (1). 2. Quick tie knot, according to claim 1, characterized in that the swing arm (5) is attached, on the one hand, to the coupling system (2, 3) through one of its ends, where it has a fall arrest support (52 ), and on the other hand, it is connected to the damping group through a stop (51), disposing in its lower part of the holes (53) connecting with the bushing (7) through the fork (6). 3. Quick tie knot, according to previous claims, characterized in that the fixing fork (6) has a semicircular area in its lower part for coupling to the bushing (7), while in its upper part it has two extensions, which they include the holes (61), between which the arm (5) is arranged for joining. 4. Fast harrow knot according to claim 3, characterized in that the lower semicircular area of the fork (6) is inclined relative to the horizontal of the ground in a range between 13 and 18 ° C, preferably being 15 ° C. 5. Quick tie knot according to previous claims, characterized in that the damping group comprises a tube (4) for housing and protection of a spring. 6. Quick tie knot, according to previous claims, characterized in that the coupling system (2, 3) consists of a mooring head (2) in whose upper part a flip tongue (3) is coupled, so that the assembly acts as a clamp, adapting to the chassis of any machine.