ES1073005U - Rotary rotating connection device (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Windrower rake connection device (1) for connecting a rake rake (2) to a tractor (3), characterized in that it comprises: - a tripuntal hitch (4), comprising an upper part (7) and a lower part (9), where the upper part (7) comprises a first anchor (19) to connect said upper part (7) to an upper hitch (8) attached to the rear of the tractor (3) and pivotable with respect to the tractor (3) and the lower part (9) comprises two second anchors (20) to connect said lower part (9) to two lower elements (10) of connection located in the rear part of the tractor (3); - a swivel (5), to connect the tripuntal hitch (4) with a rocker (6), said swivel (5) being articulated with the rocker arm (6) through a third upper anchor (21) articulated with the upper part (7) and a third lower anchor (22) articulated with the lower part (9), allowing the rake (2) to take curves; y - a rocker (6) connected at its front end (15) to the rotary (5) and connected at its rear end (16) to the rake (2). (Machine-translation by Google Translate, not legally binding)

Description

Rake connection device spinner

Object of the invention

The present invention can be included within of the technical field of agriculture. Specifically, the object of the invention deals with a rake rake connection device to connect a rake to a tractor, which allows the rake accumulate fodder in rows without risk of tipping over.

Background of the invention

The utility model ES1028344 refers to a fodder rake to accumulate fodder from a plantation providing said fodder in cords or rows where the fodder can later be picked up easily.

The rake described in ES1028344 comprises a structure connectable to a tractor and that is formed by two first bars that carry through two supports a plurality of discs endowed with protruding spikes. In working position, the bars are arranged so convergent from the rear of the tractor backwards. The substantially vertical orientation of the discs and the arrangement convergent bars (not parallel to the direction of travel of the tractor) cause the contact of the spikes with the ground cooperating with the rotation of the disks caused by such contact, the forage is moved from the ground and accumulated in a cord during the March. The structure comprises an additional intermediate bar between the first two bars that carries a plurality of discs additional that release the fodder from the space between the two first bars, directing said forage towards the sides. The structure is connected at its rear (depending on the direction of the march) to at least one wheel that allows the advance of the rake dragged by the tractor.

The drawback of the rake described lies in the difficulty of avoiding the overturning of said rake, causing a serious accident, due to lack of stability due to the reduced distance between The rake wheels.

On the other hand, surface work cant cause uneven collection of fodder (fodder from the highest side it is collected to a lesser extent since the spikes they affect less strongly on the ground), and some requests excessive and uneven in the rake, since the spikes and the lower side discs are being hit against the ground with excessive force, which can cause serious material damage and premature breakdowns

Description of the invention

The present invention solves the problem mentioned by a rake connection device windrower, to hook a windrower rake to a tractor.

The connection device according to the invention provides stability to the rake, avoiding the risk of tipping over allowing the rotation of the rake along a vertical axis to take travel curves

The connection device comprises a hitch tripuntal, a swivel and a lift rocker, which are described next:

The tripuntal hitch comprises a part upper equipped with a first anchor to connect the upper part with an upper pivotable connection element with respect to the tractor and located at the rear of the tractor. The tripuntal hitch additionally comprises a bottom part provided with two seconds anchors to connect the bottom with two elements connection bottoms located at the rear of the tractor, by example below the top element, one on each right side and left of said upper element. In the back, the tripuntal hitch incorporates two third anchors, which connect said tripuntal hitch to the swivel. The tripuntal hitch with the three front anchors provide stability to the rake, preventing the raking from being overturned when dragged by the tractor.

The swivel is an element that allows you to connect the tripuntal hitch with the rocker, allowing the transmission of traction from the tractor to the rake, and allowing also the necessary rotation, with respect to a vertical axis, to take the curves. The rocker will be described below. Swivel it is articulated to the tripuntal hitch through the two third parties anchors arranged at the rear of the tripuntal hitch: one of the rear anchors joins the top of the swivel with the top of the tripuntal hitch and the other rear anchor joins the lower part of the tripuntal hitch with the lower part of the swivel. Preferably, the swivel is composed For a frame.

The rocker is an element connected to its end before the swivel and connected at its rear end to the rake, and that allows to transmit the turn of the back end of the rocker with respect to the previous end, in the direction of a horizontal axis perpendicular to the direction of travel, to raise or lower the rake with respect to the horizontal, moving from a descended position, from work, to a position elevated, transport.

The rocker can incorporate a leg of folding rest that allows rest on the floor of the rake in the work of hooking and unhooking the rake Regarding the tractor.

Additionally, the connection device of the invention can incorporate a lateral leveling device for lift one side of the rake (right or left) on the other side to be able to work safely and efficiency in banned terrain.

The lateral leveling device comprises a connection structure to connect the upper part of the tripuntal hitch with the bottom. This structure of connection is attached to the top and articulated to the part bottom along an axis with the direction of travel. The device lateral leveling additionally comprises first pistons, whose synchronized drive articulates the upper part than the lower part. First sayings pistons connect the right and left ends of the part top with the corresponding ends of the bottom. TO through controls arranged in the tractor cab, the user can drive the first pistons to produce the mentioned twist of the top of the tripuntal hitch respect from the bottom. This drive can also be performed. automatically.

In the presence of the leveling device side, the swivel transmits to the rocker the rotation of the part top of the tripuntal hitch with respect to the bottom, providing the rake with the orientation desired by the user in function of the ground cant. The first drive pistons transmits the turn of the top and of said connection structure, with respect to the lower part (and therefore, with respect to the tractor) towards the swivel that transmits in turn said rotation through the rocker to the rake.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to an example preferred practical implementation of it, is accompanied as integral part of that description, a set of drawings where with an illustrative and non-limiting nature, what has been represented next:

Figure 1.- Shows an overview in perspective of the device of the invention connected to a tractor and to a rake.

Figure 2.- Shows a view of the device the invention.

Figure 3.- Shows a detailed view of the tripuntal hitch and lateral leveling device.

Figure 4.- Shows another view of the hitch tripuntal and lateral leveling device.

Preferred Embodiment of the Invention

As can be seen in figure 1, the rake rake connection device (1) according to the invention is used to connect a rake rake (2) to a tractor (3), allowing the rake (2) to rotate with respect to the tractor (3) along an axis given by the direction of travel, providing the possibility of lifting one side of the rake (2) (right or left) with respect to the other side in order to work safely and efficiently on uneven ground, as well as providing the rake with anti-safety
I overturn.

Figure 2 shows that the device (1) connection includes a tripuntal hitch (4), a swivel (5) and a lift rocker (6), described below:

The tripuntal hitch (4) comprises three anchors located in the front area:

- a first anchor (21) arranged in the part upper (7) of the tripuntal hitch (4), said first connected hooking (21) to an upper pivotable connection element (8) with respect to the tractor (3) and located at the rear of said tractor (3), and

- two second anchors (22) arranged in the lower part (9) of the tripuntal hitch (4), connected said second anchors to two lower connecting elements (10) located at the rear of the tractor (3), below the upper element (8), one on each right and left side of said upper element (8). The tripuntal hitch arrangement (4) with the first anchor (21) and the second anchors (22) provide anti-roll stability to the rake.

The tripuntal hitch (4) also comprises a third upper anchor (19) and a third lower anchor (20), arranged on the back of the tripuntal hitch (4), which articulate said tripuntal hitch (4) with the swivel (5), allowing the rake (2) to take the curves.

The upper part (7) is connected to the lower part (9) by means of a connection structure (11) attached to the upper part (7) and articulated to the lower part (9) along an axis with the direction of travel. Drive synchronized of two first pistons (12) that connect the right and left ends of the top (7) with the corresponding ends of the bottom (9) allows the articulation of the upper part (7) with respect to the lower part (9). Through controls (not shown) arranged on the tractor (3), the user can drive the first pistons (12) to produce the aforementioned rotation of the upper part (7) of the hitch tripuntal (4) with respect to the lower part (9).

The swivel (5) allows to connect the hitch tripuntal (4) with the rocker (6), to transmit to the rocker (6) the rotation of the upper part (7) of the tripuntal hitch (4) with respect to the lower part (9), transmitting the orientation desired by the user depending on the terrain cant. The swivel (5) comprises a frame (14) fixed to the third anchors (19, 20). The first piston drive (12) transmits the rotation of the upper part (7) and of said structure (11) of connection, with respect to the lower part (9) - and therefore with respect from the tractor (3) - towards the swivel (5), which in turn transmits said rotation through the rocker (6) to the rake (2).

The rocker (6) is a substantially element plane connected at its front end (15) to two opposite sides of the swivel (5) and connected at its rear end (16) to the rake (2), and that allows to transmit the turn of the upper part (7) from the swivel (5) to the rake (2), around an axis with the direction of the march, to facilitate the work in the field cant. By means of a second piston (18) connected to the rake (2) and to the rocker arm (6), an end rotation can occur posterior (16) with respect to the anterior extreme (15), in the direction of a horizontal axis perpendicular to the direction of travel, to raise or lower the rake (2) with respect to the horizontal, moving from a descended position, from work, to a position elevated, transport.

The rocker (6) incorporates a leg (17) of folding rest that allows rest on the floor of the rake (2) in the work of hooking and unhooking the rake (2) with respect to the tractor (3).

Claims (5)

1. Device (1) for connecting the raking rake, for connecting a raking rake (2) to a tractor (3), characterized in that it comprises: - a tripuntal hitch (4), comprising a upper part (7) and a lower part (9), where the upper part (7) comprises a first anchor (19) to connect said part upper (7) to an upper hitch (8) attached to the rear of the tractor (3) and pivotable with respect to the tractor (3) and the bottom (9) comprises two second anchors (20) to connect said part lower (9) to two lower connecting elements (10) located in the rear of the tractor (3); - a swivel (5), to connect the hitch tripuntal (4) with a rocker (6), said swivel (5) articulated with the rocker (6) through a third anchor upper (21) articulated with the upper part (7) and a third bottom anchor (22) articulated with the bottom (9), allowing the rake (2) to take curves; Y - a rocker (6) connected at its end anterior (15) to the swivel (5) and connected at its rear end (16) to the rake (2). 2. Rake rake connection device (1) according to claim 1, characterized in that it further comprises a lateral leveling device comprising a connection structure for connecting the upper part (7) with the lower part (9), said connection structure (11) connected to the upper part (7) and articulated to the lower part (9) along an axis with the direction of travel, so that the drive synchronized, through controls arranged in the tractor (3), of two first pistons (12) connecting the right and left ends of the upper part (7) with the corresponding ends of the lower part (9), allows the articulation of the upper part (7) with respect to the lower part (9), providing the rake (2) with the orientation desired by the user according to the ground cant. 3. Swivel rake connection device (1) according to any one of claims 1 and 2, characterized in that it further comprises a second piston (18) connected to the rocker (6) and rake (2) to produce a turn from the rear end (16) with respect to the front end (15), in the direction of a horizontal axis perpendicular to the direction of travel, raising or lowering the rake (2) with respect to the horizontal, between a lowered, working position , to an elevated position, of transport. 4. Rake rake connection device (1) according to claim 1, characterized in that the swivel (5) comprises a frame (14) fixed to the connection structure (11) of the tripuntal hitch (4). 5. Rake rake connection device (1) according to any one of claims 1 to 4, characterized in that the rocker arm (6) incorporates a folding leg (17) to allow the rake (2) to rest on the ground ) in tasks of hooking and unhooking the rake (2) with respect to the tractor (3).