EP2058094B1 - Log splitting device - Google Patents

Description

The present invention relates to a splitting device for logs, according to the preamble of claim 1. Such a splitting device is made US 4398581 A known.

Directly mounted on the crane pliers solutions, such as. B. off DE 10 2005 058 085 A1 are known, but have the disadvantage that they are too heavy with appropriate splitting force to be moved during all other operations during which they are not needed. However, grown splitters have the disadvantage that they require high set-up times. In addition, known splitters are often very massive, expensive or prone to damage.

Object of the present invention is therefore to provide a splitting device for logs available, which with a simple, yet durable Design allows high splitting forces and advantageously short set-up times.

According to the invention, this object is achieved by a splitting device according to claim 1. The splitting device according to the invention for logs, which is on a frame member of a vehicle or a movable implement, in particular the subframe of a mobile chipper, mounted or mounted, in this case has a splitter and connected to the splitter splitting fork, in which a log is inserted, wherein the splitter has a splitting wedge for splitting a log inserted into the splitting fork and the splitting device has a pivoting arrangement with which the splitter can be pivoted about an axis parallel to the Ausschiebeachse the splitting wedge pivot axis for adaptation to the orientation of the log.

The inventive gap device can be such. B. be mounted on the hacker subframe next to the crane. The cleaved trunk is thereby held with the crane in the gap fork, that an end face of the trunk protrudes only slightly over the split fork and the trunk is arranged with its longitudinal direction substantially perpendicular to the Ausschieb axis of the splitting wedge, so that the riving knife in the vicinity a trunk end is located on one side of the Holzstammumfangs. Now, the splitting process is initiated, in which the splitting wedge penetrates laterally into the trunk. When the riving knife begins to penetrate into the trunk, the trunk can be completely lowered by the crane, whereby due to the rotatability of the splitter by the pivoting arrangement, the splitting rack position adapts.

Due to the free pivotability of the splitter about a feed parallel axis no torques are transmitted to the Ausschubachse of the splitting wedge on the frame of the mobile chipper. Likewise, there are no torques between the split fork and the splitting wedge, which would occur without the pivotability of the splitter in a movement of the log during the splitting process. Likewise, it can be ensured that the splitting wedge along the longitudinal and thus fiber direction of the trunk into the wood penetrates and safely splits the trunk. After the removal of the tree trunk this is on the one hand in the split fork and on the other hand on the ground, which causes a corresponding deflection of the entire splitter. Now, the splitting process can be carried out completely and then the upwardly split stem part can be removed with the crane. The sufficiently split trunk can then be hacked in the hacker.

Further advantageously, the splitter is austeleskopierbar parallel to the Ausschiebeachse from a transport position to a working position. The splitting device according to the invention can be so firmly mounted on the hacker subframe and telescoped out if necessary, so that there are only minimal set-up times. During transport or when the splitter is not needed, it can be telescoped again to save space.

Further advantageously, in this case, the split fork is pivotally hinged to the splitter and is unfolded when Austeleskopieren the splitter on a positive guide and / or collapsed during Einteleskopieren a forced operation. This reduces the space requirement of the inventive splitting device in the transport position again. If, on the other hand, the splitter is moved to the working position, the splitting fork is automatically unfolded during the ejection movement of the splitter.

Furthermore advantageously, after the folding fork has been unfolded, the splitter can be pushed further into an end position. Further advantageously, the split fork is automatically secured after folding in the transport position. Advantageously, for folding and unfolding and for securing a lever mechanism is provided, via which the forced operation and the backup takes place.

Further advantageously, the pivoting assembly is blocked in the transport position. The splitter according to the invention is thus pivotable in the working position to transmit no torques on the frame when splitting the inserted trunk, in contrast, in the transport position rigidly on the mobile chipper secured. Advantageously, the pivoting possibility is blocked just before reaching the transport position on the frame element, in particular on the lower frame of the mobile chipper, arranged gate rollers.

Further advantageously, the splitter according to the invention has a triple telescope, the outer tube via the pivoting assembly on a frame member, in particular the subframe of a mobile chipper, mounted or mounted, the center tube is austeleskopierbar a hydraulic cylinder and carries the split fork, and the inner tube carries the riving knife and can be pushed out over a splitting cylinder. This results in a simple structure and stable arrangement over which the splitter is austeleskopierbar and relative to the frame member, in particular the subframe of a mobile chipper, is pivotable. Advantageously, outer, middle and inner tube are designed as a square tube.

Further advantageously, while the split fork is pivotally hinged to the center tube, wherein a lever mechanism is arranged on the outer tube, over which the Ausseleskopieren the center tube, the folding pliers unfolded and / or folded when Einteleskopieren the center tube. This results in a simple arrangement for automatically folding and unfolding the splitting pliers when loading and unloading the splitter.

Further advantageously, the splitting fork is pivotally hinged to the splitter and has at its free end two tips with an exception therebetween, wherein the splitting fork can be folded in the transport position over the splitter, that the tips are arranged on both sides of the splitter. This results in a particularly space-saving possibility to fold the split fork during the transport position on the splitter. The pivot axis of the split fork relative to the splitter is substantially parallel to the loading direction of the logs.

The present invention further comprises a vehicle or mobile working device, in particular a mobile hoeing machine, with a splitting device, as described above, wherein the splitter via the pivoting arrangement relative to the vehicle or movable working device is pivotable. The splitting device is in this case mounted on a frame element of the vehicle or of the movable working device, in particular on the subframe of a mobile hoeing machine, so that the splitter can be pivoted via the pivoting arrangement relative to the frame of the vehicle or movable working device, so that the splitter with the splitting fork can be adapted can be pivoted about the orientation of the inserted into the split fork log around an axis parallel to the Ausschiebeachse the splitting wedge pivot axis.

Advantageously, while the pivot axis of the pivoting arrangement is aligned substantially horizontally. The split fork thus forms an upwardly open receptacle, in which logs can be inserted to be split by lateral insertion of the splitting wedge into the log. Due to the pivotability of the splitter, a tilting of the splitting device relative to the log is prevented and the forces occurring during a movement of the log are minimized, so that a good gap performance is ensured and damage to the splitter is prevented by a movement of the log.

Figur 1:

die erfindungsgemäße Spaltvorrichtung mit einem eingelegten Holzstamm, welcher im wesentlichen horizontal ausgerichtet ist,

Figur 2:

die erfindungsgemäße Spaltvorrichtung mit einem eingelegten Holzstamm, welcher schräg von oben nach unten ausgerichtet ist, so dass sich der Spalter mit dem Stamm mitgedreht hat,

Figur 3:

die erfindungsgemäße Spaltvorrichtung beim Austeleskopieren in eine Arbeitslage und

Figur 4:

die erfindungsgemäße Spaltvorrichtung in ihrer Transportlage.

The present invention will now be described in more detail with reference to an embodiment and drawings. Showing:

FIG. 1:

the inventive splitting device with an inserted log, which is oriented substantially horizontally,

FIG. 2:

the splitting device according to the invention with an inserted log, which is oriented obliquely from top to bottom, so that the splitter has rotated with the trunk,

FIG. 3:

the inventive gap device when Austeleskopieren in a working position and

FIG. 4:

the inventive splitting device in its transport position.

FIG. 1 shows the embodiment of the inventive splitting device with an inserted log 1. The splitting device in this case has a splitter with a retractable splitting wedge. With the splitter, a gap fork 3 is connected, which forms an upwardly open receptacle for the trunks. In the split fork 3 of the tree trunk 1 is inserted so that the longitudinal axis 20 of the log substantially perpendicular to the Ausschiebeachse 21 of in FIG. 1 invisible splitting wedges, which is laterally inserted into the log 1, is arranged.

According to the invention, the splitting device in this case has a pivoting arrangement, with which the splitter can be pivoted about an axis parallel to the Ausschiebeachse 21 of the splitting wedge pivot axis 22 for adaptation to the orientation of the log 1. The swivel assembly comprises in the embodiment 2 along the pivot axis 22 arranged bearing points 5, via which the gap device about the pivot axis freely pivotable on a frame member of a vehicle or movable implement, in the embodiment of the subframe of a mobile chipper, mountable.

How out FIG. 2 can be seen, the gap device according to the invention by the free pivoting about the pivot axis 22 of the orientation of the tree trunk 1 adapt, z. B. if this is stored on the ground and so rests with one end in the split fork 3 and with the other end on the ground and thus has an obliquely downwardly extending longitudinal direction 20. Without the pivoting assembly 5 high torques would be transmitted via the splitting device to the frame of the implement during such a movement of the tree trunk, so that the splitter would be significantly burdened. Moreover, if the splitting wedge 4 has already been driven into the tree trunk, the tree trunk 1 would act as a lever between the splitting tongs 3 and the wedge 4, and could so destroy the entire splitting device. By means of the pivoting device according to the invention, however, the splitting device adapts to the orientation of the tree trunk 1, so that this load and the corresponding damage can be effectively prevented. In addition, the pivotability ensures the correct alignment of the splitting wedge against the trunk, which allows a safe splitting.

In FIG. 4 Furthermore, the articulation elements 18 are shown by means of which the pivoting arrangement 5 is pivotably mounted on a frame element of a vehicle or movable working device, in particular on the subframe of a mobile hoeing machine. The articulation elements 18 are screwed or welded to the frame element and have articulation points 19, which are bolted in alignment with the articulation points 5 on the splitting device. The bearing points 5 on the gap device are arranged on collar elements 24 on the outer tube 12, wherein the collar elements 24 between two plates of the hinge elements 18, in which the arm-side pivot points 19 are angebildet, are arranged.

How out FIGS. 1 to 4 It can be seen, the splitter is according to the invention austeleskopierbar parallel to the Ausschiebeachse 21 from its transport position into a working position. For this purpose, the splitter is constructed as a triple telescope, with an outer tube 12 which can be mounted on the pivoting assembly 5 on the frame member of the mobile chipper pivot. For this outer tube 12 is a center tube 2 austeleskopierbar about the hydraulic cylinder 13. At the head of the central tube 2 while the split fork 3 is arranged. The inner tube 26, which z. In FIG. 3 can be seen, while wearing the splitting wedge 4, which can be pushed out via a splitting cylinder, which is arranged in the central tube 2.

It is by a hydraulic cylinder 13, which is hinged on one side via a pivot point 16 on the outer tube 12 and on the other side via a pivot point 17 on the central tube 2, the central tube 2 from the outer tube 12, which is mounted on the frame of the vehicle or movable implement is telescoped. The inner tube 26 can be inserted and ejected via the splitting cylinder, which is arranged within the central tube 2. The splitting cylinder is mounted on a bearing point 23 at the rear end of the central tube 2 and a bearing point 25 on the inner tube 26. The inner tube 26 carries at its head end the splitting wedge 4, which has a cutting element and a wedge element. About the splitting cylinder so the splitting wedge 4 can be pushed along the Ausschiebeachse 21 and thus penetrates laterally into a tree trunk, which rests in the split fork 3. Outer tube, center tube and inner tube have in the embodiment of the inventive splitting device on a square profile in order to increase the rigidity of the assembly against rotation about the Ausschiebeachse 21.

Here, the split fork 3 is pivotally mounted at the head end of the central tube 2, wherein the pivot axis 11 extends substantially parallel to the longitudinal axis 20 of the inserted in the split fork 3 log. Furthermore, a lever arrangement of levers 6 and 7 is provided, which folds in and out the split fork 3 when the middle tube 2 is being scanned in and out. The lever arrangement is arranged on the outer tube 12 and engages via a recess 8 of the rigid levers 6 pivotally hinged lever member 7 on pin 9 of the split fork 3. Furthermore, in each case a guide 10 for the free end of the lever element 7 is provided on the gap fork 3 in addition to the pin 9.

If necessary, the splitter is telescoped and thus automatically the gap fork 3 unfolded, so that the receptacle 16 of the split fork points upward. The exception 16 of the split fork 3 has substantially the shape of a semicircle, so that a tree trunk can be inserted from above into the split fork 3.

In FIG. 3 the gap fork 3 is already fully unfolded, so that the tips 14 of the free end of the split fork 3 are opposite the riving knife 4. The tips 14 have hook elements 27, which are pressed during the splitting operation in the riving knife 4 opposite side of the tree trunk and keep it safe. The split fork 3 consists of a frame construction with two semicircular side walls, which are connected to each other via cross struts. At the articulating end, these side walls on Anlenkbuchsen, via which the gap fork 3 is pivotally mounted on the central tube 2 on the pivot axis 11. At the free end, these side walls form two tips 14, between which a recess 15 is located. With this recess, the split fork can be folded in the transport position on the splitting device, as in FIG. 4 is shown. In the in FIG. 4 shown transport position, the split fork 3 is folded so far that the laterally arranged tips 14 are arranged adjacent to the retracted center tube 2, so that there is an extremely space-saving arrangement.

FIG. 3 shows the splitting device in a partially telescoped position, FIG. 4 in the transport position, in which the center tube and the inner tube are completely telescoped. For automatic unfolding of the gap fork 3 when Austeleskopieren and automatic folding when Einteleskopieren the center tube 2, a lever assembly is provided. On the outer tube 12, mutually rigid levers 6 are arranged, on which a lever element 7 is pivotably mounted. The lever element 7 has at its free end an exception 8, which cooperates with a pin 9 which is arranged laterally on the gap fork 3.

At the in FIG. 4 shown transport position are the rigid lever 6 below the axis of rotation 11 of the split fork 3, so that the pivot axis of the lever member 7 is disposed in front of the axis of rotation 11 of the split fork 3 and the lever member 7 extends up to the back of the split fork 3. The lever element 7 is supported in this position with its back on the projecting axis of rotation 11 of the split fork 3, wherein the pins 9 engage on the split fork in the front of the tip of the lever member 7 arranged receptacle. If now the center tube 2 telescoped out of the outer tube 12, the projecting axis of rotation 11 pushes the lever member 7 forward so that this in turn pushes the cam 9 on the gap fork 3 forward and thus folds the gap fork 3 about the axis of rotation 11. Is the gap fork 3 unfolded so far that they are would continue to unfold by their own weight, come the tips of the lever member 7 with the guides 10, which are arranged in a semicircle around the cam 9, in contact, so that the split fork 3 is now supported on the lever member 7.

In FIG. 3 In this case, the split fork 3 is completely unfolded, so that the guides 10 are no longer supported on the lever element 7. The center tube 2 with the gap fork 3 can now be further into the in FIG. 1 shown working position are extended. The lever element 7 comes with the pin 9 and guides 10 on the split fork out of engagement and is held in this position by the holding elements 28 which abut counter-elements on the rigid levers 6. If the center tube 2 telescoped back with the split fork from the working position, the free ends of the lever member 7 come back with the pin 9 and the guides 10 on the split fork 3 into engagement, so that the split fork 3 automatically folds in further Einteleskopieren. The lever arrangement secures the gap fork 3 in the transport position.

Furthermore, arranged on the subframe of the mobile chipper crank rollers, which, which is not shown in the figures, shortly before reaching the transport position block the pivoting ability of the inventive splitting device about the pivot axis 22 and secure the gap device in the transport position.

The gap device according to the invention thus meets the requirement of high splitting forces, short set-up times and high stability and longevity. The splitting device is mounted on the subframe of the mobile hoeing machine next to the crane and unfolded as needed. If the splitter is moved into the working position during a part of the ejection movement, the gap fork 3 is opened and pushed further into the end position. In the working position, the splitter is freely rotatable about the pivot axis 22, which runs parallel to Ausschubachse 21, mounted to the columns of the inserted trunk 1 no To transmit torques to the Ausschubachse 21 of the splitting wedge 4 on the frame and to avoid damage to the splitting device.

The cleaved trunk is held by the crane in the gap fork 3, that an end face of the trunk protrudes only slightly beyond the gap fork 3. Now the splitting process is initiated. If the splitting wedge 4 begins to penetrate into the trunk 1, the trunk can be completely lowered by the crane, the orientation of the splitting fork 3 and of the splitter being adapted to the alignment of the trunk due to the pivotability. Now the trunk lies with one side in the split fork and with the other side on the ground, which causes a corresponding deflection of the entire splitter. Now you can finish the splitting process and then remove the upwardly split stem part with the crane. The sufficiently split trunk can now be hacked in the hacker.

Claims (8)

1. A splitting device for logs (1), which is mounted or mountable on a frame element of a vehicle or traveling implement, in particular on the lower frame of a mobile chipping machine, comprising a splitter or a splitting fork (3) connected with the splitter, into which a log (1) can be inserted, wherein the splitter includes a splitting wedge (4) to be pushed out for splitting a log (1) inserted into the splitting fork (3) and the splitting device includes a pivoting arrangement (5) with which the splitter can be pivoted about a pivot axis (22) parallel to the push-out axis (21) of the splitting wedge for adaptation to the orientation of the log,
   characterized in
   that the splitter comprises a triple telescope whose outer tube (12) is mounted or mountable on a frame element via the pivoting arrangement, whose middle tube (2) can be telescoped out via a hydraulic cylinder and carries the splitting fork, and whose inner tube (26) carries the splitting wedge and can be pushed out via a splitting cylinder.
2. The splitting device according to claim 1, wherein the splitter can be telescoped out parallel to the push-out axis from a transport position into a working position.
3. The splitting device according to claim 2, wherein the splitting fork is pivotally articulated to the splitter and is folded out via a forced guidance when the splitter is telescoped out and/or is folded in via a forced guidance when telescoping in.
4. The splitting device according to claim 2, wherein the pivoting arrangement is blocked in the transport position.
5. The splitting device according to claim 1, wherein the splitting fork is pivotally articulated to the middle tube and on the outer tube a lever mechanism is arranged, via which the splitting tongs are folded out when the middle tube is telescoped out and/or are folded in when the middle tube is telescoped in.
6. The splitting device according to any of the preceding claims, wherein the splitting fork is pivotally articulated to the splitter and at its free end includes two tips with an interposed cutout, so that in the transport position it can be folded over the splitter, so that the tips are arranged on both sides of the splitter.
7. A vehicle or traveling implement, in particular mobile chipping machine, comprising a splitting device according to any of the preceding claims, wherein the splitter is pivotable with respect to the vehicle or traveling implement via the pivoting arrangement.
8. The vehicle or traveling implement according to claim 7, wherein the pivot axis of the pivoting arrangement extends substantially horizontally.

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