DD201364A1 - LIFTING AND SWIVELING DEVICE FOR ADAPTERS ON SELF-OPERATING AGRICULTURAL MACHINES - Google Patents

Abstract

The invention relates to a lifting and pivoting device for picking up and setting adapters on e.g. Dolly with the aim of achieving a maximum excavation height and the greatest distance to the collection organs. It is the task solved to create a lifting device whose lifting kinematics is improved by a zwangskraeftefreie arrangement of Uebertragungsglieder, these are on the frame (1) and below each of a lifting arm (2, 2 ') next to the feed shaft (3) depending on a support ( 4, 4 '). The support (4, 4 ') can be locked at the bearing end via a spring-loaded ball and has a recess (6) at the end. When lifting the adapter (7) engages the support (4, 4 ') in the system (11, 11') u. after further lifting the adapter (7) is pivoted forwards and upwards. The invent. is for self-propelled harvesting. applicable.

Description

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Title of the invention. , , ^:

Lifting and swiveling device for adapters on self-propelled agricultural machines

Field of application of the invention

The invention relates to a lifting and swiveling device for adapters on self-propelled agricultural machines for picking up and setting down on transport trolleys.

Characteristic of the known technical solutions

Lifting devices have hitherto been designed for the purpose of receiving adapters and their mounting on the base machine. It was also important to achieve a good soil adaptation as well as a precise assignment to the following working aggregates. For this reason, the lifting height for such devices was limited and, in most cases, was sufficient only for picking up and settling on the ground. Thus, in the DD-PS 127 102 a beyond the plant of the adapter in working position beyond curved track created to ensure a higher lifting and simultaneous Wegschweriken of the working bodies.

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But this curved path has the ITachteil that they can not be increased to a lifting height, which extends over the transport wheel of Einachsanhängers, since the design freedom is limited to the front by the adapter. Furthermore, a disadvantage are the larger forces that occur when the distance of the cam track from the swing radius of the lifting device increases and thus overload the lifting hydraulics.

Object of the invention

The invention aims to provide a device which realizes a maximum excavation height and the greatest possible distance to the intake organs and avoids high loads on the lifting device »

Explanation of the essence of the invention

The invention has for its object to provide a lifting device whose lifting kinematics is improved by a positive force free arrangement of the transmission elements and which is independent of the type of lifting device of the basic machine according to the invention this is achieved in that the frame frame of the agricultural machine below each of a lifting arm and both sides The support is connected to the adapter in a form-locking or releasable manner and can be locked in three positions · Öö Unterstellun serves to plague the supports during the work of the adapter, the middle position is the ready position for applying the adapter before lifting and the superposition is needed to settle and pick up from the trolley. The fixation of the supports in the individual positions is carried out according to the known principle by engaging a spring-loaded ball in a recess of the bearing pin,

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At the other end of the support there is a recess in which the adapter rests with the corresponding counter bearing. When dismantling the adapter, the supports are pivoted from the lower position to the middle position and thus to the abutment and raised the adapter. At the same time, the support pivots upwards and at the same time pushes the adapter forwards away from the working elements »In the highest position of the lifting device, a transport vehicle is moved up with the adapter to z, B. and lowered thereon. When driving away from the trolley, the supports slide on guide slopes downwards until they automatically engage in the upper position. The re-cultivation is done by sliding the supports on the guide slope to the counter bearing of the adapter and after further lifting its own weight is applied to the supports. After lifting off the trailer, the adapter is lowered down to the middle position of the supports and is now resting on the curved track * The supports are swiveled to the lower position during the working process and thus the adapter can freely hang on the lifting device Copy floor _t where it is not obstructed by the supports · Since the supports describe a forwardly offset cam track when lifting the adapter, which comes close to the cam track of the lift arms, no major forces occur in the hydraulic system. A further advantage is that the solution according to the invention on lower arms, as they are used in conventional lifting devices, and thus greatly simplifies the adaptation to different adapters. This contributes to a better utilization of the agricultural machine over the entire harvest campaign «

embodiment

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing show:

Fig. 1 is a side view of the lifting device with supports Fig. 2 is a plan view of the lifting device with supports

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On the frame 1 of the self-propelled agricultural machine is below a lifting arm 2; 2 ¹ on both sides of a feed shaft 3 each have a support 4; 4 ^f arranged. These are each locked in a bearing 5 via a known spring-loaded ball lock, not shown, and have at the opposite * end a recess 6 for fixing to an adapter 7 · In a sub 8, 9 and 10 center position are the supports 4; 4 'locked and during the work process they remain in the subordination 8 # To dismantle the adapter 7, the supports 4> 4 ^{1 are} pivoted to the center position 9, where they after lifting in a system 11; 11 ^f snap into position * When lifting further, the adapter 7 swings upwards and away from the feed chute 3 _# After setting down z, B _# on a cutting unit carriage, the supports 4 remain; 4 'in the upper position 10 or they are swung back to the sub 8 when transporting »

Claims (1)

2362 19 6 invention claim Lifting and pivoting device for adapter .an self-propelled agricultural machines with upper lifting arm and lower curved path, characterized in that on a frame (1) of the agricultural machine below the lifting arms (2, 2 ') each a pivotable support (4; 4') on both sides of a Feed shaft (3) is arranged, which is optionally directly to the adapter (7) "via a system (11; 11 ^f ) in communication, wherein the support (4; 4 ') is preferably lockable in several positions» For this 1 sheet drawings