DD272210B5

DD272210B5 - STABKRUEMELWALZE

Info

Publication number: DD272210B5
Application number: DD31592188A
Authority: DD
Inventors: Bruno Bredschneider; Heinz Kuehn; Katrin Schumann
Original assignee: Leipzig Bodenbearbeitung Veb
Priority date: 1988-05-20
Filing date: 1988-05-20
Publication date: 1993-08-26
Also published as: DE3914480A1; FR2631512A1; DD272210A1; FR2631512B1

Description

Hierzu 1 Seite ZeichnungenFor this 1 page drawings

Field of application of the invention The invention relates to a bar roller for tillage equipment and their combination with sowing equipment, Fertilization and crop protection. Bar crumb rollers are used in agriculture for surface treatment of the soil after plowing, in preparation

des Saatbettes und zunehmend gleichzeitig auch als Abstützelement für Gerätekombinationen zur Tiefenbegrenzungthe seedbed and increasingly at the same time as a support for device combinations for depth limitation

angewendet.applied.

Characteristic of the known state of the art Stabkrümelwalzen that simultaneously edit the soil surface ready to seed, support the combination of devices and equipment

genutzt werden, die vom Traktor getragen werden, müssen leicht sein, eine hohe Stabilität aufweisen und dürfen nicht zurused by the tractor must be light, have high stability and must not be used

Tend to constipation. Stabkrümelwalzen consist of a roll shell, which is formed of a number of parallel rods, which means Support disks are mounted on the roll axis. Depending on the length of the iUcrum roller further support discs are arranged between the end plates. On the one hand, this restricts the deformation of the bars by stones, but on the other hand increases the risk of clogging. The Support discs are possible designed as flat, flat slices to counteract the constipation, but what a

geringere Stabilität der WaUe zur Folge hat.lower stability of the balance.

In order to achieve a higher stability, it is known to arrange oblique struts inside the roller (DE 2734437)

oder die Stäbe gegeneinander verschränkt auf den Stützscheiben zu befestigen (SU Urheberschein 1094 585). Auch sehr breite, profilierte Stützscheiben sind bekannt (GB Patent 1438815), die aber wieder zur Verstopfung der Walze führen, weil sich dieor to fasten the rods folded against each other on the supporting disks (SU certificate 1094 585). Also very wide, profiled support discs are known (GB Patent 1438815), but again lead to blockage of the roller, because the

eindringende Erde en den Profilen festsetzt. Um die Lager der Stabkrümelwalze in den Walzenkörper hinein zu verlegen, sind hohl geprägte Endscheiben bekannt (FR-Patent 2405628). Die Abstützung der Stäbe im Inneren der Walze erfolgt dann wieder mit flachen Stützscheiben.penetrating earth in the profiles. In order to lay the bearings of the bar crumb roller into the roll body, hollow embossed end plates are known (FR patent 2405628). The support of the rods inside the roller is then again with flat support discs.

US Pat. No. 4,344,490 discloses a rotary harrow consisting of a rotary harrow and a bar crumb roller arranged behind it.

kombiniertes Bodenbearbeitungsgerät bekannt. Die Stabkrümelwalze weist flache Stützscheiben auf, die in ihren Randbereichen mit Ausnehmungen versehen sind, welche den Umfang der Stützscheiben unterbrechen. Dadurch kann zwar die Masse dercombined soil cultivation device known. The Stabkrümelwalze has flat support discs, which are provided in their edge regions with recesses which interrupt the circumference of the support discs. Thus, although the mass of

Stabkrümelwalze lowered, the stability is not increased. By GB Patent 1,600,278 a disc harrow is known, the discs in the middle work area of loose

achsparallelen Stäben durchsetzt sind. Die Scheibenegge behält dabei ihre Grundfunktion bei. Im Sinne einer Stabkrümelwalze ist sie nicht einsetzbar. Die Stäbe behindern den normalen Erdfluß der schräg angestellten Scheibenegge, führen zu einemparaxial rods are interspersed. The disc harrow maintains its basic function. In the sense of a Stabkrümelwalze she is not applicable. The rods hinder the normal earth flow of the inclined disc harrow, lead to a

erhöhten Zugkraftbedarf und sind an den in der Regel gehärteten Scheiben nicht dauerhaft zu befestigen.increased traction requirement and are not permanently attached to the generally hardened discs.

Object of the invention The invention aims to extend the life of the bar crumb roller by increasing its stability. Essence of the invention The invention has for its object to make the support disks of the Stabkrümelwalze so and order them so

daß eine Erhöhung der Stabilität, insbesondere der Querstabilität erreicht wird, wobei gleichzeitig der Materialaufwand und dasthat an increase in stability, in particular the transverse stability is achieved, at the same time the cost of materials and the

Weight should be lowered and blockages are further reduced. According to the invention this is achieved in that all support disks are formed as hollow discs and on the Roll axis are arranged, that their hollow surfaces, starting from the center of the roll axis, mirror image outwards to

den Walzenlagern hin ausgerichtet sind.The roller bearings are aligned.

The roller bearings are arranged within the cavity of the end plates. With this design and arrangement of the support disks, a simple and effective solution has been found that the Stability of the cylindrical roller significantly increased, the weight reduced, the blockage even on wet ground

vermindert und mit geringem Aufwand herstellbar ist.reduced and can be produced with little effort.

Die Hohlscheiben setzen besonders dem Querverzug der Walze einen erheblichen Widerstand entgegen und zwar nach beiden Richtungen. Die Hohlscheiben können im Material schwächer sein als plane Scheiben, bzw. es kann auch mit weniger Scheiben die gleiche Stabilität erzielt werden. An der glatten Hohlscheibe können sich kaum Erdreste festsetzen, so daß auch nicht in dem Maße mit Verstopfungen gerechnet werden muß, wie es mit den quer verstrebten Walzen oder durch die Verwendung profilierter Stützscheiben bekannt ist. Die Erhöhung der Querstabilität läßt auch die Verringerung der Anzahl der Stäbe zu, so daß damit weitere Materialeinsparungen und geringe Verstopfungen erreichbar oind. Die Unterbringung der Walzenlager in der Hohlscheibe ermöglicht die dichte Nebeneinanderreihung der Stabkrümelwalze, so daß keine unbearbeiteten Streifen entstehen.The hollow discs, in particular, provide considerable resistance to the transverse distortion of the roller, namely in both directions. The hollow discs may be weaker in the material than flat discs, or it can be achieved with fewer discs, the same stability. On the smooth hollow disk hardly earth residues can settle, so that not to the extent must be expected with blockages, as is known with the transverse braced rollers or by the use of profiled support discs. The increase in the transverse stability also allows for the reduction in the number of rods, so that thereby further material savings and low blockages oind achievable. The placement of the roller bearings in the hollow disc allows the dense juxtaposition of the Stabkrümelwalze so that no unprocessed stripes arise.

embodiment The invention will be explained in more detail below with reference to an embodiment. In the accompanying drawing show Fig. 1; View of bar crumb roller Fig. 2: juxtaposed Stabkrümelwalzen Fig. 3: support disk with openings Fig.4: Support disc with recesses. The Stabkrümelwalze 1 is attached to the brackets 2 on the frame 3 of a device. It consists of the bars A ₁ which are secured with support disks 5 on the roll axis 6. The end plates 7 are arranged close to the roller bearings 8, with which the Stabkrümelwalze 1 rotatably attached to the brackets. 2

gelagert ist.is stored.

The support discs 5 and the similarly shaped end plates 7 are formed as hollow discs, the hollow surfaces 9 of

der Mitte der Walzenachse 6 beginnend nach außen zu den Walzenlagern 8 hin ausgerichtet sind. Die Walzenlager 8 sind imStarting from the middle of the roll axis 6 starting outward to the roller bearings 8 are aligned. The roller bearings 8 are in

Cavity 10 of the end plates 7 housed. In order to achieve an additional mass reduction, the support disks 5

bzw. die Endscheiben 7 mit Durchbrüchen 11 oder mit Ausnehmungen 12 versehen sein.or the end plates 7 may be provided with openings 11 or 12 with recesses.

Claims

1. Stabkrümelwalze with a roll shell of parallel bars, with support discs on the
Roller axle are fastened, characterized in that all support disks (5,7) are formed as hollow discs and are arranged on the roller shaft (6) that their hollow surfaces (9), starting from the center of the roller axis (6), mirror image outwards the roller bearings (9) out
are aligned.

2. Stabkrümler according to claim 1, characterized in that the roller bearings (8) within the
Cavity (10) of the end plates (6,7) are arranged.