DD295299A5

DD295299A5 - CLOSED AGRICULTURAL FIELD SPRAY SYSTEM

Info

Publication number: DD295299A5
Application number: DD90341943A
Authority: DD
Inventors: Benno Wiemeyer
Original assignee: Amazonen-Werke H. Dreyer Gmbh U. Co. Kg,De
Priority date: 1989-06-23
Filing date: 1990-06-21
Publication date: 1991-10-31
Also published as: EP0403859B1; DE3920577A1; DE59000099D1; EP0403859A1

Abstract

Die Erfindung bezieht sich auf ein geschlossenes landwirtschaftliches Feldspritzensystem, bestehend aus einer an der Heckseite eines Schleppers ankuppelbaren Feldspritze mit Fluessigkeitstank, Pumpe, Dosierelementen und Verteilergestaenge und einem an der Frontseite des Schleppers ankuppelbaren zusaetzlichen Fluessigkeitstank mit zugeordneter Pumpe. Mit dieser wird Fluessigkeit aus dem frontseitigen Tank in den heckseitigen Tank des Schleppers gepumpt. Um auf einfache Weise einen kostenguenstigen Antrieb fuer die die Fluessigkeit aus dem auf der Frontseite angeordneten Tank foerdernden Pumpe zu schaffen, ist vorgesehen, dasz die die Fluessigkeit aus dem frontseitigen in den heckseitigen Tank foerdernde Pumpe an dem Rahmen der auf der Heckseite des Schleppers angekuppelten Feldspritze angeordnet ist. Fig. 1{Feldspritzensystem; Fluessigkeitstank; Foerderung; Fluessigkeit; Pumpe; Antrieb; Frontseite; Heckseite; Schlepper; Rahmen}The invention relates to a closed agricultural field spray system, consisting of an attachable to the rear side of a tractor sprayer with fluid tank, pump, dosing and Verteilergestaenge and an engageable on the front of the tractor additional fluid tank with associated pump. With this liquid is pumped from the front tank in the rear tank of the tractor. In order to easily provide a cost-effective drive for the liquid pumped from the front mounted tank pump, it is provided that the liquid pumped from the front side pump into the rear tank should be attached to the frame of the field sprayer coupled to the rear of the tractor is arranged. Fig. 1 {field spray system; Fluessigkeitstank; Promotion; Liquid; Pump; Drive; Front; Rear side; Tractor; Frame}

Description

embodiment Further details of the invention can be taken from the example description and the drawings. Show here Fig. 1: the closed agricultural field spray system, consisting of the on the three-point linkage of a

Schleppers angeordneten Feldspritze sowie einem an der Frontseite des Schleppers angeordneten Fronttanks in der Seitenansicht und in Prinzipdarstellung undTractor arranged field sprayer and arranged on the front of the tractor front tanks in the side view and in schematic representation and

2 shows the functional diagram of the field spray system according to the invention.

Das geschlossene lendwirtschaftliche Feldspritzensystem besteht aus dem an der Heckseite 1 eines Schleppers 2 angeordneten Feldspritze 3 und dem auf der Frontseite 4 des Schleppers 2 angeordneten Fronttank 5. Die Feldspritze 3 weist den Rahmen 6 auf, über den die Feldspritze 3 an den heckseitigen Drai-Punkt-Kraftheber 7 des Ackerschleppers 2 angebaut ist. Auf dem Rahmen 6 ist der Flüssigkeitstank 8 angeordnet. Des weiteren ist an den Rahmen 6 der Feldspritze 3 das Verteilergestänge 9 befestigt. Unterhalb des Flüssigkeitstanks 8 ist auf dem Rahmen 6 die Pumpe 10 befestigt, welche über eine Gelenkwelle 11 von der Schlepperzapfwelle angetrieben wird. Über die Pumpe 10 wird die Flüssigkeit aus dem Flüssigkeitstank 8 angesaugt und über die Dosierelemente 12 in bekannter und daher nicht näher dargestellter Weise den Verteilerdüsen 13 des Verteilergestänges 9 zugeführt.The closed lentwirtschaftliche field spray system consists of arranged on the rear side 1 of a tractor 2 sprayer 3 and arranged on the front side 4 of the tractor 2 front tank 5. The field sprayer 3 has the frame 6, via which the field sprayer 3 to the rear Drai point Power lift 7 of the tractor 2 is cultivated. On the frame 6, the liquid tank 8 is arranged. Furthermore, the distributor frame 9 is attached to the frame 6 of the field sprayer 3. Below the liquid tank 8, the pump 10 is mounted on the frame 6, which is driven via a propeller shaft 11 of the tractor PTO. About the pump 10, the liquid is sucked from the liquid tank 8 and fed via the metering elements 12 in a known and therefore not shown manner the distributor nozzles 13 of the manifold linkage 9.

Um eine ausreichend große Flüssigkeitsmonge auch von kleineren Schleppern mitführen zu können, ist auf der Frontseite 4 des Ackerschleppers 2 der Fronttank 5 über den Kuppelrahmen 14 angekuppelt. Der Fronttank 5 weist den Flüssigkeitsbehälter 15 auf. Unter dem auf der Heckseite 1 des Ackerschleppers 2 angeordneten Flüssigkeitstank 8 ist eine weitere Pumpe 16 angeordnet. Die Antriebswelle 17 der Pumpe 16 ist über das Kupplungsstück 18 drehfest mit der Welle 19 der Pumpe 10 gekuppelt, so daß die Pumpe 16 über die Pumpe 10 und der Gelenkwelle 11 von der Schlepperzapfwelle angetrieben wird. Die Pumpe 16 saugt über die Saugleitung 20 die sich im Flüssigkeitsbehälter 15 des Fronttanks 5 befindliche Flüssigkeit ab, so daß die Flüssigkeit aus dem Flüssigkeitsbehälter 15 des Fronttanks 5 von der Pumpe 16 über die Leitung 21 in den Flüssigkeitstank 8 der heckseitigen Feldspritze gefördert wird.In order to be able to carry a sufficiently large Flüssigkeitsmonge of smaller tractors, is coupled on the front side 4 of the tractor 2, the front tank 5 via the dome frame 14. The front tank 5 has the liquid container 15. Below the arranged on the rear side 1 of the tractor 2 liquid tank 8, a further pump 16 is arranged. The drive shaft 17 of the pump 16 is rotatably coupled via the coupling piece 18 with the shaft 19 of the pump 10, so that the pump 16 is driven by the pump 10 and the propeller shaft 11 of the tractor PTO. The pump 16 sucks via the suction line 20 located in the liquid container 15 of the front tank 5 liquid from, so that the liquid from the liquid container 15 of the front tank 5 is supported by the pump 16 via the line 21 into the liquid tank 8 of the rear sprayer.

Des weiteren kann zwischen der Pumpe 16 und dem Flüssigkeitsbehälter 15 des Fronttanks 5 eine Rückführleitung 22 vorgesehen sein, so daß die sich in den Flüssigkeitsbehälter 15 befindliche Flüssigkeit aufgerührt werden kann. Hierbei ist dann in entsprechender Weise in den Leitungen ein Drei-Wege-Hahn 23 anzuordnen, so daß wahlweise die Flüssigkeit in dem Flüssigkeitstank 15 von der Pumpe 16 aufgerührt oder bei Umstellung des Drei-Wege-Hahns 23 in den Flüssigkeitstank 8 der heckseitigen Feldspritze 3 gefördert wird.Further, a return line 22 may be provided between the pump 16 and the liquid tank 15 of the front tank 5, so that the liquid contained in the liquid tank 15 can be agitated. In this case, a three-way valve 23 is then to be arranged in a corresponding manner in the lines, so that either the liquid in the liquid tank 15 stirred by the pump 16 or upon conversion of the three-way valve 23 in the liquid tank 8 of the rear sprayer is encouraged.

Die Pumpe 16 ist in Längsrichtung verschiebbar auf dem Rahmen 6 angeordnet, so daß durch Verschieben der Pumpe 16 die Pumpe 16 von der Pumpe 10 abgekoppelt oder an diese angekoppelt werden kann.The pump 16 is slidably disposed on the frame 6 in the longitudinal direction, so that by moving the pump 16, the pump 16 can be decoupled from the pump 10 or coupled to this.

Claims

1. Closed agricultural field spray system, consisting of an attachable to the rear of a tractor sprayer with liquid tank, pump, dosing and distribution linkage and an engageable on the front of the tractor additional liquid tank with associated pump through which the liquid from the coupled to the front of the tractor Tank in the coupled to the rear side of the tractor tanks to pump, characterized in that the liquid from the front (15) in the rear-side tank (8) promotional pump '(16) on the frame (6) on the rear side (1) of the tractor (2) coupled field sprayer (3) is arranged.

2. Field spray system according to claim ^ characterized in that the two pumps (10,16) with their drive shafts (17,19) in alignment. are arranged one another, and that the two drive shafts (17,19) via a coupling piece (18) rotatably coupled to each other.

3. Field spray system according to claim 1, characterized in that from the front tank (5) the liquid pump (16) behind the rear tank (3) associated pump (10) is arranged, that the rear pump (16) displaceable in the longitudinal direction is arranged on the frame (6).

For this 2 pages drawings

Field of application of the invention

The invention relates to a closed agricultural field spray system in which a tractor is equipped with a front and a rear side liquid tank. The field spray system according to the invention is applicable in agricultural engineering.

Characteristic of the known state of the art

Commonly known is a field spray system having on the three-point power lift on the back of the tractor an agricultural sprayer with liquid tank, pump, metering and distribution linkage. The size of the liquid tank is limited due to the load capacity of the tractor's three-point power lift and the weight of the tractor. To remedy this situation, an additional liquid tank has already been arranged on the front of the tractor. This makes it possible to carry much more spray liquid. This liquid tank is associated with a pump, which is arranged on the frame of the arranged on the front side of the liquid tank. This pump, which pumps the liquid from the front tank into the tail tank, is usually driven by a hydraulic motor. In order to have a sufficient hydraulic line, it is necessary that in addition to the tractor hydraulics own hydraulic pump must be provided. As a result, this system is relatively expensive.

Object of the invention

The aim of the invention is to improve the effectiveness of closed agricultural field spray systems.

Explanation of the essence of the invention

The invention has for its object to provide a simple way for a cost-effective drive for the liquid from the pump arranged on the front side pump.

According to the invention, this object is achieved in that the liquid from the front side in the rear tank pump promoting is arranged on the frame of the coupled on the rear side of the tractor sprayer. As a result, the condition for an extremely cost-effective drive of the front-side tank associated pump is created. This makes it possible that the liquid pumping the liquid from the front tank is driven by the same drive as the pump associated with the rear tank. In a preferred embodiment it is provided that the two pumps are arranged with their drive shafts in alignment one behind the other, and that the two drive shafts are rotatably coupled to each other via a coupling part. As a result, a common drive of the two pumps is achieved in the simplest way. Thus, in the simplest way, when the field spray system, without liquid must be conveyed from the front tank, can be used without the second pump must be co-driven, the invention provides that the liquid pump from the front tank pump behind the assigned the rear tank Pump is arranged, and that the rear pump is arranged longitudinally displaceable on the frame. This makes it possible to decouple the rear pump from the drive by the pump is simply moved backwards.