DE2121001C3 - One-turn clutch for the binder shafts and needle drive of agricultural baling presses - Google Patents

Description

direction \>. i of the drive pulley inclined wcefüh- 20 dune.

rende run-up surface (23. 24) of the clutch You is solved by the fact that the only take-away

lock lever (22) is assigned. merorgan one in a plane perpendicular to the truss shaft

2. One-turn clutch according to claim I, the axially lying leaf spring attached to the clutch part, characterized in that both directions of rotation are used, which in the engaged position each have an inclined surface (23, 24) of the free end in a groove on one end face is assigned to the coupling locking lever (22). tnebsscheihe engages and the to · uncouple one

3. One-turn clutch according to claim 1 or 2. inclined in the direction of rotation of the drive pulley characterized in that the leaf spring (14) leading away contact surface of the clutch lock its free end is assigned two projecting noses bels.

Having (17 i8), one of which is used as a dome 30 by the enindungsgemäße embodiment, the

member (17) to engage in the groove (13) the number of coupling parts and their bearings

The drive pulley (10) is used, while the other, significantly reduced, simplifies the overall structure

the drive pulley offset nose (18) and maintenance and wear reduced,

a stop for the inclined surface (23, according to a special embodiment of the invention

24) of the clutch lock lever (22) . 35 dung can be used in both directions of rotation.

4. One-turn clutch according to claim 3, associated therewith the inclined surface of the clutch lock lever, characterized in that the cranked nose be.

(18) carries a roller (20) whose axis of rotation has been recognized as being particularly advantageous that the

runs approximately radially to the Binder shaft axis. Leaf spring at its free end two protruding

40 has lugs, one of which serves as a coupling element for engaging the groove of the drive pulley,

while the other, away from the drive pulley

The bent nose serves as a stop for the inclined surface of the clutch locking lever.

The invention relates to a single revolution clutch for 45 is provided with a roller the Binderwellen- and needle drive of agricultural the cranked lug whose axis of rotation approximately radially to the binder Tific balers, extends the shaft axis with the binder, so the device operates loading shaft fixedly connected, and at the same time the binding pin is particularly wear-resistant.

your controlling coupling part in both directions of rotation - An exemplary embodiment is shown in the drawing

effective driver organs for the permanent 50 and is described in more detail below, has revolving drive pulley and its F i g. I shows a side view of the invention

Clutch locking lever from the bale measuring wheel via a moderate switching device in the rest position, from the right Shift rod is controlled. seen in the direction of travel of the machine,

Switching devices of the type mentioned need F i g. 2 is a view according to FIG. 1 from the left,

the drivers, which are effective in both directions of rotation, have a horizontal cross-section through organs to be the binding needles from the press channel Fig. 1 and

to be able to do so, if the press as a result of an inj. 4 a representation during the binding organ-

stuffing or overloading during the binding process, cut in the line AB according to Fig.2. ganges comes to a standstill and has to be eliminated · On the baling channel 1 the binder plate 2 is screwed to 60 verder the disturbance of the piston by turning backwards, which is retracted on brackets 3 bearings 4 for the binder flywheel. derwelle 5 carries. From the German patent specification 947 268, from which the ring gears 6 for driving the binding apparatus and the invention is based, it is known to have a crank pin 8 on which a coupling part 7 made of cast iron is firmly connected to the binder shaft has, on which to attach the Na ratchet, which is mounted in opposite 65 delzugstange 9.

Directions of rotation act and the by a

set the clutch locking lever mounted in the disengaged element 4 and the clutch part 7 a drive pulley ter position are held. After triggering 10 freely rotatably mounted, which has a toothing

.lufweisl. those with a binding ring! enaniriebsriizel 11 κι intervention stands, of which it is in the direction of the arrow 12 is constantly driven. The drive pulley 10 has a groove 13 on one end face.

A leaf spring 14 is attached to the coupling part 7 with two screws IS so that it is in the gap / between the coupling part 7 and the drive disk 10 extends into the running area of the groove 13, whereby they i'a recess 16 with which they the Bini! erwel! e5 primordial. At its free end, the leaf spring 14 has a nose 17 which is coupled in It engages resiliently in the groove 13. The leaf spring ! 4 also has a nose 18 which is bent away from the drive pulley and on which an approximately radially . (Fixed bolt 19 extending away in the tie shaft is. on which a roller 20 is mounted.

On the binder plate 2, a clutch lock lever 22 is mounted on a bearing block 21, which on his ^ Liwcnkbaron lever end two ridden against each other. in L'mlaufnchtung sloping away from the drive pulley 10 run-on inclined surfaces 23 and 24 for the roller 20 and twist which a nose 25 to limit the run-on for both directions of movement serves. The clutch lock lever 22 has a stop 26 that controls its pivoting movement limited to the binder shaft by bearing on the bearing block 21. Located in this limit position the coupling locking lever with its inclined surfaces 23, 24 in the orbit of the roller 20 of the leaf spring 14.

Furthermore, the clutch locking lever 22 has a release device (not shown) to the rear directed bearing point 27 on which a coupling member 28 is pivotably mounted on which about a second bearing pin 29 which leads to the Ballenmeßrad shift rod 30 is articulated. Between two bearing points 27 and 29, a slot 31 is arranged on the coupling member 28, in which a tension spring 32 is hooked, the counter bearing 33 is welded to the console 3, and via the coupling link 28 both the clutch lock lever 22 forward into its locked position and the shift rod 30 in Frictional or positive connection with the Ballenmeßrad pulls. Furthermore, the coupling member 28 has a control pin 34 extending parallel to the binder shaft. the one with the drive pulley 10 connected cam 35 cooperates and its movement upwards through a on the binder shaft bearing 4 arranged fixed stop 36 is limited.

In the uncoupled position, the leaf spring 14 is supported by the on the run-up bevel 23 on the nose 25 adjacent roller 20 from drive pulley 10

ίο stretched away (Fig. 1 to 3). As soon as the bale measuring wheel the Schaltsiange 30 is released, it works Coupling member 28 around the pivot point 27 with its control pin 34 upwards in the area of the constantly revolving cam 35. This presses with the

on the stop 36 sliding control pin 34 the coupling member 28 back (Fig. 4), both the Clutch lock lever 22 from its position of engagement with the clutch leaf spring 14 and via the shift rod 30 the release device on Ballenmelirud

is posted in their starting position. The leaf spring 14, which is no longer locked, now also strikes their nose 17 on the rim of the drive pulley 10 and finally in the driving groove 13, whereby about the coupling part? the binding process is started.

In the meantime, the cam 35 has released the coupling member 28 again, and the tension spring 32 pulls over the coupling member moves the clutch locking lever 22 into its locking position, which is loaded by the stop 26

is true. If now the leaf spring 14 with the binder shaft 5, the rotation causing the binding process has performed, its roller 20 runs on the run-up slope 23 of the clutch lock lever. disengages the nose 17 and ensures

position on the nose 25 is the correct rest position for the binding devices and binding needles.

If the press is blocked during the binding process and tilted by turning backwards is, the effective in both directions of rotation groove 13 takes the leaf spring 14 and thus the binding apparatus and the needles back to their original position, the disengagement by running on the roller 20 takes place on the run-up slope 24 of the clutch lock lever up to the nose 25.

1 sheet of drawings

Claims (1)

of the clutch locking lever, they are coupled with the continuously rotating drive pulley and cause a working rotation of the binding 1. One-turn clutch for the binder shaft shaft. During this rotation are through and needle drive of agricultural bai- 5 a special cam on the tie shaft lenpresseii. these firmly connect the gearshift rod and thus the clutch lock lever with the tie shaft huridenes and, at the same time, the binding needles return to their starting point under the tension of a spring Coupling part brought into position in both directions of rotation, so that the switching pawls are disengaged effective driving organs for the constant umvverden. as soon as the binding apparatus and that is to say, binding machines end Has drive pulley and whose io your have reached their starting position. Must have Coupling locks are turned back from the bale measuring wheel via press as a result of clogging, so a SchalMange is controlled, thereby disengaging the ratchets characterized in that the only takeaway is a fixed stop on the frame. mcrorgan one in a plane transverse to the binder- These known devices require a shaft axis lying on the coupling part (7) 15 multiple rollers. Bearings and lubrication points, Stigte leaf spring (14) is used to reduce this large construction effort in indented and the Position with its free end in a groove (13) to reduce construction costs, but at the same time the operational safety to increase safety on one end face of the drive pulley (10) and to carry out maintenance work engages and the one in circulation to reduce the decoupling, is the task of the present invention