DD156763A1 - DEVICE FOR FLOORING CUTTING WORKS ON HALF FEEDING MACHINES - Google Patents

Abstract

The invention relates to a device for Bodenfuehrung of cutting units on forage harvesting machines, which compensates in the longitudinal and transverse directions by means of a lifting device with vertical lifting floor irregularities. The essence of the invention is that in a lift arm (10) which is movably connected to a lifting device (3), a lifting hook (7) is arranged, which by means of a Fuehrungsbolzen (11) in a gate (12) of the working cylinder ( 13) is displaceable. For a better introduction of the lifting hook (7) into the lifting arm (10), the opening of the lifting arm (10) is conical and extends parallel to its end. To mount the cutting unit (1) of the lifting hook (7) is returned to a stop pin (15) and locked over a locking pin (16). About the lifting device (3), the cutting unit (1) from the trolley (18) is lifted, wherein the lifting hook (7) engages in a cutting unit receptacle (5) and the lower support (8) rests against the counter-layer (6) and with a safety pin (17) is secured. The Bodenfuehrung takes place in the direction of travel over the lifting hook (7) and in the transverse direction over the lower link (9), the coupling (14) and the movement of the lifting arm (10) in the link guide (12) of the lifting device (3).

Description

._ A -

Title of the invention

Device for guiding the floor of cutting units.n on forage harvesting machines

field of use

The invention relates to a device for BodenfCihrung of Schneidv / erken of forage harvesting machines in the longitudinal and transverse directions, in which a quick attachment and removal of the cutting mechanism is possible «

Characteristic of the known technical solutions

From some patents various systems for cutting height control on cutting units of agricultural machinery are already known, with which an adaptation of the cutting height is achieved to the respective soil profile · Thus, from DD-PS 75 664 a lifting and lowering device for the cutting of a harvester, in particular a forage harvester known, in which over two, laterally of the feeder arranged, movable handlebar pairs with

Be means of a hydraulic lift »and lowering device connected to the cutting * The upper and lower executioner are each connected to a coupling" The Hub "and lowering movement of the pairs of links is achieved by acting on the upper arms hydraulic working cylinder, at their Piston rod heads Long hole guides have »whereby a pendulum movement of the cutting mechanism is possible» To relieve the Schneidververkes between the upper arms and the chassis a tension spring system attached The disadvantage of this lifting and lowering device is the fact that additional support and supports a high material · And assembly work is required, as well as the hook and "eye-shaped training äer suspensions" aggregate the cultivation process is difficult.

In another known embodiment according to DD ~ PS 127 102 a lifting device for the cutting unit or other implements is described in which the hook of the lifting device coupling are mounted, which are connected to a pivoting subframe. Below the subframe, supports are arranged with a curved track on which the attachment rests with a horizontal roller. On the hook hydraulic cylinders are hinged and assigned to the side of the hook tension springs that hold the device in Schwiramstellung. When mounting the adapter, the hook is moved to the lowest position and blocked a slot guide in a piston rod head by a plug. When lifting the hook with the attached adapter, the rollers lay on the Kurbenbahn and roll up to this * After lifting the attachment is locked under the hook with a plug · The pendulum and ground copying is through the slot guide between hook and hydraulic cylinder and between Hook, coupling and subframe limited · A disadvantage of this lifting device is the high cost of materials for subframe, Zugfedernpakete and support with

Curve Bahne Moreover join TYansportfahrten with arre "· tiertem hook through the loose concern animal leading role on the cam track shocks on"

Object of the invention

The aim of the invention is to provide a device for guiding the ground of cutters on forage harvesting machines, which allows a uniform guidance of the ground by oscillation in longitudinal and transverse direction with the least possible use of materials and with structurally simple components

Principle of invention aer

The invention has for its object to provide a means for guiding the bottom of cutting units on forage harvesting machines, which allows in a simple design a quick An and dismantling and ensured by the special design of the lifting mechanism uniform Bo.denkopie * tion.

Erfindungsgeraäß this is achieved in that a cutting unit is connected via two, arranged next to the feeder, lifting devices with the Halmfuttererntemasehine »These are the cutter upper cutter support and lower abutments arranged» which are associated with the lifting hook and a lower support in conjunction, creating a * The lifting hook is connected to the lower bearing practicing a coupling in conjunction, so that a parallelism of the movement is achieved during the coupling process * The lifting hook is in an upper lifting arm, the opening for better management of Hubhakens is conical and runs parallel to the rear, guided and is connected via a guide pin with a working cylinder in connection · In the mounted position of the lifting hook is located with the guide pin in the parallel guide of the lifting arm ^

wherein the shank of the guide pin rests against a stop pin in the lift arm and is locked via a socket pin »In this position, the lift arm and the coupling simultaneously the lower support with the help of the lifting device moved forward and down, the tension spring forces the side between the lift arm and chassis »The lifting hook engages in the cutting unit and the lower support against the counterpart, with which it is locked with a securing bolt and secured against lifting off the lower support, whereby there is still so much play that the Uneven ground movements occurring can be compensated · By the lifting device, the cutting unit is lifted from the trolley. For the working position of the locking pin is released on the lifting arm and the working cylinder extended, whereby the lifting hook with the guide pin in the backdrop can perform a pendulum movement · At the same time the tension springs are claimed so far that acting through the tension spring float position the ground pressure of the cutting on the sanding shoes · reduced

embodiment

The invention is explained in more detail below in an embodiment * In the accompanying drawings show:

Fig. II The side view of a forage harvester with transport trolley and cutting unit;

Fig. 2: the side view of a cultery feed crop machine

with attached cutting mechanism ^

FIG. 3 is a plan view of the attached cutting unit; FIG.

4: the detail "Z" of Fig. 2,

5 shows the section A-A of FIG. 4,

Fig. 6: the detail "Z" of Fig. 2 with locked

lifting hook,

Rig · 7s the detail "Y" of Fig. 2 »

The cutting unit 1 of a self-propelled harrow forage harvester 2, not shown, is connected to the chassis 4 via two movable lifting devices 3. On the cutting mechanism 1, an upper cutting attachment 5 and an abutment 6 are attached, which are attached to the lifting hook 7 and a lower support at the lower handlebar engageable 9 _e the wegliche fore and aft be "lifting hook 7 is in the lifting arm 10 pin 11 on a guiding" bearing which is movably guided in the connecting link 12 of the working cylinder 13 and is biased on both sides of the lifting hook through springs 14 " For a better introduction of the lifting hook 7 into the lifting arm 10, the opening is conical and runs parallel to the rear. At the lower part of the lifting arm 10, a coupling 14 is connected, which is the connection to the lower arm 9 _S of vertically variably connected to the chassis 4 _e made for the implementation of the attachment and dismantling operation of the working cylinder 13 in its rear Pulled end position, wherein the lifting hook 7 is located in the parallel guide and rests with its shank on a stop pin 15. With a locking pin 16 of the lifting hook 7 is locked in this position and placed on the lifting device 3 in the lowest position and under the cutting unit holder 5 and counter 6 gefah «ren« By a locking pin 17, the counter-layer 6 with the lower support 8 on the lower arm 9 arrested * This is intended to prevent lifting of the cutting mechanism 1 from the lower support 8 when reversing. By raising the lifting device 3, the cutting mechanism 1 is lifted by the transporting carriage 18. For the harvesting operation, the cutting mechanism 1 is brought into working position the necessary oscillation of the cutting unit 1 about the transverse axis of the locking pin 16 is released and the working cylinder 13 extended ·

Here, the bearing in aer gate 12 by guide pin 11 lifting hook 7 is so far released until the on both sides of the lifting arm IO on the guide pin 11 to the cutting · "work relief manually pretensioned tension springs are stressed 20 and thus the ground pressure under the sanding pads 19 so acting through the Floating position is reduced * When occurring bumps, the cutting unit 1 by the vertically movable lower arm 9 and the lift arm 10 can adapt to the soil profile without the working cylinder 13 must be adjusted * Between the arre «oriented lower support 8 and aer counter 6 is so much Play, öa ^> the movements occurring when bumps are compensated »

Claims (1)

claims 1 * means for ground guidance of cutting works at Halm "" forage harvesting machines characterized in longitudinal · »and transverse direction, wherein the recording of the cutters by means of a Hubvorrich" tung with a vertical reciprocating motion and tension springs a minimal ground pressure of the sanding sole is adjustable ^ that in a lifting hook (10) with a guide pin (11) in the backdrop (12) of a working cylinder (13) back and forth movably mounted and prestressed by tension springs (20), with a locking pin (16) lockable is * 2 _e means for ground guidance of cutting works at Halm · »forage harvesting machines according to item 1, characterized ,, that the lifting arm (10) has a conical opening to A ·» guidance of the lifting hook (7), which is designed parallel discontinued after the end and in the parallel guide has a stop pin (15) has » Ζ "means for ground guidance of Schneidvverken to Halra» forage harvesting machines according to item 1 and 2, characterized in that the lifting hook (7) for turning on "and dismantling of the cutting mechanism (1) (in the parallel guide on the stop bolts (15), and fitting the guide pin 11) is immovable in the scenery (12) is lockable » For this. -! ..... pages drawings