FI79927C - UPPHAENGNINGSANORDNING VID LASTNINGS- OCH FLERPROCESSMASKIN. - Google Patents

Description

Loader device for the multifunction machine 7 9 9 27

The invention relates to a suspension device to be mounted on the boom end of a loader device by means of an upper joint for hanging a tipping multifunction machine 5, which suspension device includes a rotating motor for turning the body of the suspension device and with it a multifunction machine 10 tu by means of a transverse joint and the actuator is connected between the body of the hanger and the body of the food processor.

Loader multifunction machines that perform all other work steps except felling work are called loader processors. 15 Today, most processors can be equipped with so-called landfill site. The purpose of this dump head is to place the processor in an upright position. An upright position is required to effect adhesion to the tree. In practice, it is sufficient as long as the processor is even approximately upright when gripping the tree. Flush sawing is performed with a 20 processor cutting saw.

When the multifunction machine hangs freely, it naturally seeks a horizontal position, ie the center of gravity in the middle of the machine tends to the lowest point. By means of the cylinder in the hanger device, the multifunction machine 25 is turned parallel to the hanger device by pushing the body of the hanger device towards the pruning blade and the multifunction machine now settles almost vertically, as the center of gravity now tends to settle under the upper joint.

30 After the felling phase, the tree is pruned and cut when the tree is in a horizontal position. The multifunction machine hangs freely on this dump head, in addition, a so-called kourankäännin. This inverter controls the food processor around its vertical axis. In fact, this dump head is a hanger-35 device with which the multifunction machine is preferably raised to a vertical position by means of a hydraulic cylinder.

The problem with these dumpers, i.e. the hangers, is their high weight, large length and also price. These problems are due to the use of standard grapple winches in the hanger device. Due to the large diameter of the grapple turners, the turntable has to be placed right at the top of the hanging device and further the turntable must be in the tipping position above the multifunction machine 5. This is so that the food processor can turn upright enough. But now the length of the hanger becomes large because the inverter as a whole has to be placed in front of the pruning blades of the food processor.

The aim of the hanger according to the invention is to provide a short length of the hanger and yet to provide a sufficient vertical rise. The invention also aims at a structure that is as light and easy to use as possible. The features of the invention appear from the appended claims.

15

Even at the stage of gripping the wood, the crane boom can be used to push the multifunction machine against the frame without the multifunction machine tending unreasonably in its upright position away from the bottom of the wood surface, as with previous hangers. In the Kek-20 hanger according to the invention, the upper joint is located in the felling stage near the uppermost pruning blade. Thus, the torque caused by the horizontal pushing movement to turn the lower part of the food processor away is negligible. Furthermore, by placing the cylinder tilting the hanger in the middle stages of the hanger device, the stroke length of the cylinder 25 can be minimized. With a suitable selection of cylinder attachment points, as the hanger tilts toward the cutting saw, at some point the cylinder arm begins to protrude outward from the cylinder again. Such a situation occurs, for example, when the tree to be pruned is prevented from moving backwards, whereby the feeder 30 starts to drive the whole machine far forward, i.e. in the direction of the pruning blades. Since the multifunction machine is suspended in a horizontal position, it is sufficient as long as from this horizontal position the cylinder is able to generate even a small amount of torque required for the multifunction machine to rise vertically.

The invention will now be illustrated by reference to the accompanying drawings, which show an embodiment of the invention.

Figure 1 shows a hanger device and a multifunction machine for gripping an upright tree.

Figure 2 shows the hanger device and the multifunction machine in the pruning and cutting work phase.

Figure 3 shows the hanging device in section along the point 5-II marked in Figure 2.

Attaching lugs to the pins 4 and 5 are attached to the body 1 of the multifunction machine. The pin 4 attaches the lower body 6 of the hanger to the body 1 so that the lower body 6 can rotate about the pin 4 by about 140 °. The rotational movement can be controlled by a cylinder 10 7. The cylinder 7 is fixed to the body 1 by a pin 5 and to the lower size 6 by a pin 8. The attachment of the cylinder 7 thus allows the lower body 6 to rotate past the shortest position of the cylinder 7.

A tube 9 is attached to the lower body 6. Inside the tube 9 there is a shaft 10 which is mounted on the tube 9 axially and radially. The shaft 10 is attached by a pin 17 to a cross member 18. The cross member 18 is further attached by a pin 12 to the crane boom 13. The cross member 18, pins 17 and 12 allow the multifunctional body 1 to hang freely regardless of the relative position of the body 6 and body 1. A pivot motor 11 is attached to the pipe 9. Another possibility would be to attach the motor to the lower frame of the hanger. Furthermore, a cutting and felling saw 15, feed rollers 3 and pruning blades 2 are attached to the frame 1. In Figure 1, no felling sawing of the wood 14 to be felled has yet been performed. The focus of the food processor is located at point 19, Figure 1.

Operation of the suspension device: In Fig. 1 the arm 30 of the cylinder 7 is pushed out, whereby the lower body 6 is close to the body 1. Further the tube 9 follows the front edge of the body 1 at 10. It is also noted that the straight line between the pins 4 and 12 does not pass through the center of gravity 19; the center of gravity 19 remains closer to the tree 14. But the line parallel to the axis 10 is even further away from the center of gravity 19. It is also noted that the angle A between the axis 10 and the horizontal plane is significantly less than 90 *. Until now, in hangers, this corresponding angle is close to 4,79927 90 *. By placing the reversing motor 11 in the hanger in an oblique position, the cylinder 7 can be placed partially parallel to the reversing motor 11, which saves the overall length of the hanger.

5

Figure 1 shows the point 20 where the tube 9 and the body 1 meet. But now the tube 9 can be made considerably thinner than the reversing motor 11. By placing the shaft 10 and at the same time the thin tube 9 at an angle (angle A), the attachment point 10 12 can be obtained in a very advantageous position. As can be seen, the pin 12 is located only slightly higher than the point 16. The importance of the point 16 is emphasized when the boom 13 pushes the multifunction machine against the wood in the tipping position. Only a negligible torque is turned between the pin 12 and point 16 15 to turn the lower part of the food processor away from the wood. Point 16 means the edge of the top pruning blade.

In Fig. 2, in the pruning and cutting position, the multifunction machine hangs freely on the pin 12, whereby the pin 12 and the pin 4 are on approximately the same vertical line. Without wood 20, the center of gravity 19 would also be approximately on the line connecting the pins 12 and 4.

The magnitude of the angle A between the shaft 10 and the horizontal can be reduced up to 45 °. In this case, it would be advantageous for the shaft 10 to be suspended from the boom 13 by a constant angular velocity joint. This is because when rotating the multifunction machine 11 the torque requirement varies unreasonably when using a conventional cross joint, especially if the pins 17 and 18 cannot be brought close to each other in the axial direction 10 due to structural reasons.

30

Figure 3 shows the point of attachment of the cylinder 7 to the body l. Since the pin 5 is shorter than the inner distance of the body 6, the body 6 can turn past the pin 5. When the body 6 passes the pin 5, the pins 8, 5 and 4 are on the same line. At this point, the cylinder arm 35 starts to protrude again if the body 6 continues to pivot around the pin 4 towards the saw 15. In this way a very short stroke length can be obtained for the cylinder 7. In the position of Fig. 2, the bypass situation has not yet occurred.

Claims (4)

A suspension device, mounted on the end of a loading machine's crane arm (13) by means of an upper link (12, 18, 17) for suspending a fall and multi-process machine (1), the suspension device comprising a rotator (11) for rotating the suspension device. frame (6,9) and the multi-process machine (1), a swing mechanism, e.g. a hydraulic cylinder (7) for pivoting the multi-process machine to the desired vertical or horizontal position, wherein the suspension of the multi-process machine (1) in the body of the suspension device (6,9) is arranged by a transverse link (4) and the pivot mechanism (7) is arranged between the body of the suspension device (6,9) and the body (1) of the multi-process machine, characterized in that the body of the suspension device (6,9) comprises a bushing or a tube (9) and one at the upper link (12,18). 17) fixed shaft (10) mounted within the bushing or tube, the axial bearing, of which substantially the entire suspension device supporting the bearing, is mounted under said bushing or tube (9) and the rotary shaft (10) of the suspension device is arranged so that its extension falls behind the center of gravity (19) of the substantially free-hanging multi-process machine (1), i.e. on the same page as say (15). Suspension device according to claim 1, characterized in that the axis of the rotor (1i) or its extension (10) joins the upper link (12,18,17) and the body of the rotor (11) to the body of the suspension device (6,9). under the bushing or tube (9). 30 Suspension device according to claim 1 or 2, characterized in that said bearing bearing is independent of the rotor (11). Suspension device according to any of claims 1-3, characterized in that the upper link (12,18,17) is of a constant angular velocity link type.