RU2368122C1 - Dump rake - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: this invention relates to agricultural engineering and can be used in cured or wizened plant windrower. The dump rake comprises frame, rake bar, lifting shaft as well as liftering and lowering mechanism. The rake bar is fitted with spring teeth. The liftering rake is equipped with cantilever fitted cleaning rods located between spring teeth. Each cleaning rod consists of two rods of unequal length coupled together with a gland. The gland is located in front of the spring teeth. The shorter rod is intended for stroke limitation in a vertical plane.

EFFECT: when windrowing, the shorter hinged rod moves down by gravity and enables the spring teeth to return to their operating position, which improves rake performance reliability.

2 cl, 3 dwg

Description

The invention relates to agricultural machinery and can be used for raking in rolls of dried or dried plant matter.

Known transverse hay rake containing a frame, a rake bar, a lifting shaft, spring teeth, cleaning rods, console mounted to the rake bar and passing between the spring teeth, wheels (RU No. 20071239, class A01D 76/00). The disadvantage of this rake is that in their work there are failures due to the incomplete return of the spring teeth to their original position.

The closest in their technical essence are the transverse rake containing the frame, rake bar, lifting shaft, spring teeth, cleaning rods cantileverly attached to the rake bar and passing between the spring teeth, the lifting and lowering mechanism, wheels (A.N. Karpenko, etc. Agricultural Machines, Moscow, Kolos. 1976, pp. 225-226).

The disadvantage of this rake is that they have failures due to the inability to return them to their working position after lifting. This is because the spring teeth quickly become loose at the attachment points and at the moment of lowering to the working position they do not let the cleaning rods pass between them, but overlap them. As a result of this, either their incomplete lowering occurs, or the teeth themselves or the cleaning rods break.

The technical essence of the present invention is to improve the operational characteristics of the transverse rake and increase the reliability of their work.

The present problem is solved in that in the transverse rake containing the frame, a rake bar with spring teeth mounted on it, a lifting shaft with cleaning rods cantileverly mounted on it, passing between the spring teeth, wheels and a lifting and lowering mechanism, each of the cleaning rods is made of two unequal lengths of rods connected by a hinge, while the hinge is installed in front of the spring teeth, and a shorter length of the rod is made with the possibility of limiting the stroke in the vertical plane. The free end of a shorter rod is curved upward in a vertical plane.

The free end of the shorter cleaning rod is curved upward in a vertical plane.

The novelty of the technical solution is that the cleaning rod is made of two pivotally connected components.

The purpose of the invention is achieved in that in the working position due to the back-up of the roll, the cleaning rod plays its usual role, and when dropping the roll, its smaller end on the hinge lowers into a vertical position and does not prevent the teeth from returning to the working position.

Figure 1 shows a transverse rake at the time of dropping the roll.

Figure 2 shows the position of the cleaning rod of the transverse rake during the collection of plant mass with a rake.

Figure 3 shows the position of the cleaning rod at the initial moment after the roll is reset.

The transverse rake consists of a rake 1 attached to the shaft 2, which in turn is mounted on the frame 3. Rows of spring teeth 4 are installed on the rake 1, and a cleaning rod 5 made of two unequal lengths of rods is cantilevered to the shaft 2 6 and 7, interconnected by a hinge 8 installed in front of the spring teeth 4. A rod of shorter length 7 is configured to limit the stroke in the vertical plane. For this, above the hinge 8 connecting it to a longer length with a rod, a support heel 9 is made on it. A rake bar is pivotally attached (not shown) to the lifting shaft 2 and by means of the lifting mechanism 10 to the frame 3. The frame 3 is mounted on wheels 11.

The transverse rake works as follows. When moving in the working position (with the rows of spring fingers down), the plant material accumulated by the rake props up the smaller bar 7 of the cleaning rod 5 and levels it to a horizontal position. The further course of the bar is limited to fifth 9. At the moment of roll dropping by a transverse rake, the rake shaft 3 raises the rake bar 1 with spring teeth 4, the smaller bar 7 of the cleaning rod 5 loses support and falls down to the vertical position under the influence of its weight. The spring teeth 4 after dropping the roll are lowered without encountering interference on their way. With a further set of raked plant mass, the raked material props up large 6 and less than 7 rods and lifts the latter to a horizontal position, while they enter between the spring teeth 4. In order for the smaller rod 7 of the cleaning rod 8 not to bite into the raked material, its end is bent up in the vertical plane.

Claims (2)

1. A transverse rake containing a frame, a rake bar with spring teeth mounted on it, a lifting shaft with cleaning rods cantileverly mounted on it passing between the spring teeth, wheels and a lifting and lowering mechanism, characterized in that each of the cleaning rods is made of two unequal length of the rods connected by a hinge, while the hinge is installed in front of the spring teeth, and a shorter length of the rod is made with the possibility of limiting the stroke in the vertical plane. 2. Rake according to claim 1, characterized in that the free end of the shorter rod is made curved upward in a vertical plane.

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