SI24541A - Logging winch with advanced management, winding and unwinding of tractive rope - Google Patents

Abstract

A forestry winch with advanced guide, winding and unwinding of the tow rope (2) comprising a frame in which it is rotatably mounted preferably by means of a PTO shaft of the tractor driven, and by means of a clutch and brake a retractable drum (1) with a threaded rope (2) , as well as on the aforementioned winch frame, an upper pulley (3) is attached, and in the interior of the winch box, a directional assembly (4) is arranged with pulleys (44, 45), at least one being driven and adapted to move through said traction (4) ropes (2). For this reason, the pulley (32) of the upper pulley (3) can be freely rotatable about its axis (320).

Description

Forest winch with sophisticated guidance, winding and unwinding of tow rope

The invention in the field of work operations and transport belongs to devices for lifting, lifting or towing, and more specifically to winches, namely to the structural details thereof.

The invention is based on the problem of how to design a tractor-mounted, tractor-driven, forest-driven winch with a housing and a winding drum mounted on the latter, as well as with the above-mentioned winch-mounted upper pulley for guiding and directing the tow rope while unrolling it. said winding drum or winding it on said winding drum, and with at least one assembly for controlled unscrewing of the tow roll from the winding drum arranged between the winding drum and the upper pulley in order to ensure smooth winding of the tow rope on the winding drum or unwinding of the tow rope winding drum so that there will be as many winch components as possible, especially the winding and / or winding drive components. unwinding of the tow ropes arranged inside the winch casing, which, unlike outside the casing, will be secured against weathering and mechanical damage.

• ·

A forestry winch driven by a tractor connected to a tractor and driven by a tractor is described, for example. in SI 9600339 A2 or SI22280 respectively. DE 20 2007 005538 or in SI 22281 respectively. DE 20 2007 005535, while one of the well-known solutions for the motor driven upper hoist of this type of winch is described in WO 2009/148414.

The forest winch of the aforementioned type, comprising, therefore, a housing with a built-in winding drum and an assembly for directing the tow rope during winding on said drum, an upper steel wire guide pulley attached to the housing, optionally a lower pulley under the latter, as well. as well as the steering assembly, which is arranged between the winding drum and the upper pulley, is known from the previously unpublished Slovenian patent application no. P201200174.

Said routing assembly is mounted rotatably around its vertical geometric axis in the winch housing, and in the area below the upper pulley, comprising a rope rotating about the horizontal geometric axis, which is fixed with its housing on the outer surface of the winch housing and in its upper area. The steering assembly is freely rotatable or, at least in each case, required to be rotatable about the vertical axis and optionally mechanically connected to the upper pulley or to the winch frame itself. The aforementioned routing assembly comprises a housing in which each of its rotational axes is freely rotatably mounted ropes, the said rope axes being horizontally spaced and parallel to each other, and the rotational axis of the lower rope is further away from said vertical axis of the routing assembly the axis of the upper rope so that the ropes are intended to guide the rope from the upper pulley along the vertical axis of the routing assembly to the upper rope and then across the lower rope toward the winding drum or in the opposite direction. This kind of routing assembly design • ·

otherwise it allows the rope to be guided smoothly while winding on the winding drum so that these ropes are positioned directly next to each other without spacing and without overlapping, and it also allows the rope to be routed to the upper pulley seamlessly while unrolling it from the drum. However, since the two ropes are freely rotatable, the drive rope for unrolling the rope from the drum must be secured in the area of the upper pulley, which is arranged on the outer surface of the winch casings. This, of course, means that the upper pulley rope drive assembly is exposed to weathering and the possibility of mechanical damage. As the drive is usually driven by a hydraulic motor, therefore, hydraulic connectors and lines are also present on the outer surface of the winch housing, which are also substantially exposed to these effects.

The invention relates to a winch with sophisticated guidance, winding and unwinding of a tow rope. Such a winch comprises a frame in which the pivotally driven tractor is driven by means of a cardan shaft of the tractor and, by means of a clutch and brake, a controllable winding drum with a coiled tow rope attached to it, as well as an upper pulley attached to said winch frame and a rotor arranged inside the winch housing. . Said tow rope extends from the winding drum through the routing assembly, the upper pulley and optionally through at least one lower pulley arranged below said upper pulley against the respective load, on the forestry winch between the winding drum and the upper pulley, above and below the pulley. a pulley, which is fixed with its housing outside the winch housing in the upper region thereof and comprises a rope rotating about the horizontal geometric axis, provided with a routing assembly which is freely rotatable or at least in each case required to be rotatable about its vertical axis, which preferably coincides with said vertical axis of the upper pulley, mechanically coupled to either the upper pulley or optionally directly to the winch frame. Said routing assembly comprises a housing in which each of its rotational axes is supported by ropes, said rows of axes being arranged horizontally and parallel to one another, and the rotational axis of the lower rope is further away from said vertical axis of the routing assembly than the rotational axis of the upper rope. . Accordingly, the ropes are provided to guide the rope from the upper pulley along the vertical axis of the routing assembly to the upper rope and then across the lower rope toward the winding drum, or in the opposite direction. The rotational axis of the upper rope is so arranged that the tangent to the upper rope coincides with the said vertical geometric axis of the routing assembly, the rope leg in the area of the upper rope, namely the rope branch running towards the upper pulley and the rope branch running towards the lower rope. the directions to the axis of the top row are encircled by a blunt angle, preferably selected in the range of 100 ° to 170 °, and particularly preferably between 120 ° and 150 °.

According to the invention, it is contemplated that at least one of said ropes of the rotor assembly is available as a drive rope to move the tow rope in the area of the routing assembly and that the upper pulley rope is freely rotatable about its horizontal geometric axis.

In a preferred embodiment of the invention, the upper rope of the routing assembly is provided as a drive rope.

It is further preferred according to the invention if at least one pressure roller is arranged directly adjacent to each drive rope of the routing assembly radially pressed in the direction of said routing rope drive.

It is particularly advantageous if two pressure spaced cylinders are spaced parallel to said upper rope assembly, which are both radially pressed in the direction of said upper rope assembly.

According to the invention, it is further provided that directly adjacent to the upper rope of the steering assembly are two spaced apart cylinders spaced parallel to each other on each side of the axis of rotation of the steering assembly, said support being optionally via a hydraulic cylinder via at least one lever movable in the direction of said upper rope of the routing assembly.

In a preferred embodiment of the invention, further, each drive rope of the steering assembly is driven by a hydraulic motor. In particular, it is advantageous if the drive line is driven by a hydraulic motor and via a suitable gearbox with a suitable gear ratio, in particular e.g. via a chain notebook.

The invention will now be explained in more detail by way of an exemplary embodiment schematically illustrated in the accompanying drawing showing

FIG. 1 shows schematically illustrated portions of a forest winch through which a tow rope is passed, namely a winding drum, a diversion assembly and an upper pulley;

FIG. 2 is a preferred embodiment of a forwarding forestry winch assembly in perspective;

FIG. 3 is a preferred embodiment of the forestry winch diversion assembly in perspective perspective;

FIG. 4 is a preferred embodiment of the rotor assembly of the forestry winch in cross section in plane IV - IV according to FIG. 3.

The forest winch, with advanced guidance, winding and unwinding of the draw rope 2, comprises in the sketch a non-illustrated frame in which the rotary bearing is advantageously driven by a non-illustrated PTO shaft of the tractor driven by a non-illustrated clutch and also an unmanaged brake control reel 1 (Fig. 1) a tow rope 2 coiled with a tow rope 2 as well as a top pulley 3 attached to said winch frame and a routing assembly 4 arranged inside the winch housing. The routing assembly 4 is essentially intended to guide the tow rope 2 during winding onto the drum 1, such that these ropes are located directly next to each other, with no gap and, in particular, no overlapping which could result in damage to the tow rope 2.

Said tow rope 2 extends from the winding drum 1 through the rotor assembly 4 of the upper pulley 3 and optionally through at least one further lower pulley 3 arranged below said upper pulley 3 against each load not shown in the diagram, wherein between the winding drum 1 and the upper pulley 3, namely above the winding drum 1 and below the upper pulley 3, which with its casing 31 is fixed outside the winch casing in the upper region thereof and comprises, in the example shown, a freely rotating cord 32 rotating about a horizontal geometric axis 30 , intended routing assembly 4.

Said routing assembly is arranged inside the winch housing and is freely rotatable or at least in each case required as rotatable about vertical axis 40, which preferably coincides with said vertical axis 30 of the upper pulley 3, • ·

mechanically connected either to the upper pulley 3 or optionally directly to the winch frame. Said routing assembly 4 comprises an enclosure 41 in which each of its rotary axles 440, 450 are rotatably mounted rows 44.45.

Said axes 440, 450 of rows 44, 45 are horizontally spaced and parallel to one another, and the rotational axis 450 of the lower rope 45 is further away from said vertical axis 40 of the routing assembly 4 than the rotary axis 440 of the upper rope 44. In this way, said rows 44, 45 for guiding the rope 2 from the upper pulley 3 along the vertical axis 40 of the routing assembly 4 to the upper rope 44 and then through the lower rope 45 towards the winding drum 1, or in the opposite direction.

Further, (Fig. 4), the rotational axis 440 of the upper rope 44 is arranged so that the tangent to the upper rope 44 coincides with said vertical geometric axis 40 of the routing assembly 4, legs 21, 22 of rope 2 in the area of the upper rope 44, namely towards the upper rope 44. pulley 3, the running arm 22 of rope 2 and in the direction of the lower rope 45, the running arm 21 of rope 2, in the direction of the axis 440 of the upper rope 44, is surrounded by a soluble angle a, preferably selected in the range between 100 ° and 170 °, particularly preferably between 120 ° and 150 °.

Typically, the forest winch according to the invention is that at least one of said ropes 44, 45 of the routing assembly 4 is available as a drive rope for moving the rope 2 in the area of the routing assembly 4. Accordingly, the rope 32 of the upper pulley 3 is freely rotatable around its own. axis 320, resulting in a significant simplification of the upper pulley 3 and a reduction in the number of winch parts disposed outside the winch housing, thereby exposing it to external influences and the possibility of mechanical damage.

In a preferred embodiment of the forestry winch, the upper rope 44 of the steering assembly 4 is available as the drive rope.

According to the invention, it is further preferred if at least one pressure roller 46, 47 radially pressed in the direction of said drive line 44, 45 is arranged directly adjacent to each drive rope 44, 45.

It is particularly advantageous if two pressure spacers 46, 47 are spaced parallel to the upper row 44, both radially pressed in the direction of the upper row 44. In such a case, they can be arranged directly adjacent to the upper row 44. two pressure rollers 46, 47 parallel to each other, which are mounted in a common carrier 48 on each side of the axis 40 of rotation of the steering assembly 4, said carrier 48 being, by means of a hydraulic cylinder 8, optionally movable in at least one lever. directions to the top lane 44.

It is further preferred according to the invention that the drive line 44, 45 is driven by a motor 9, in particular through a suitable gearbox 90 with a corresponding gear ratio, e.g. chain notebook.

Thanks to the mentioned concept, virtually all vital parts of the winch winch, and in particular all the drive elements, arranged inside the winch casing, are thus protected from external influences and protected from mechanical damage.

Claims (8)

PATENT APPLICATIONS A forest winch with sophisticated guidance, winding and unwinding of a tow rope (2) comprising a frame in which it is pivotally mounted, preferably driven by a tractor PTO shaft and driven by a clutch and brake, a retractable reel (1) with a retractable tow rope (1) 2), as well as the upper pulley (3) fastened to said winch frame and a routing assembly (4) arranged inside the winch housing, said tow rope (2) extending from the winding drum (1) through the routing assembly (4), upper a pulley (3), and optionally at least one lower pulley arranged below the upper pulley (3) below each load, between the winding drum (1) and the upper pulley (3), namely above the winding drum (1), and below the upper pulley (3), which with its housing (31) is fixedly fixed outside the winch housing in the upper region thereof and comprises a string (32) rotating about horizontally not the geometric axis (30), the intended steering assembly (4), which is freely rotatable or at least in each case required to be rotatable about a vertical axis (40), preferably coinciding with said vertical axis (30) of the upper pulley (3), mechanically coupled either with the upper pulley (3) or optionally directly with the winch frame, said routing assembly (4) comprising a housing (41) in which each rope (44, 45) is supported by each around its rotary axis (440, 450) wherein said axes (440, 450) are horizontally spaced and parallel to one another, and the rotational axis (450) of the lower rope (45) is further away from said vertical axis (40) of the steering assembly (4) than the rotary axis (440) ) of the upper rope (44) so that the ropes (44, 45) are provided to guide the rope (2) from the upper pulley (3) along the vertical axis (40) of the routing assembly (4) to the upper rope (44) and then across the lower rope (44). cords (45) against the winding drum (1) or in the opposite direction, and wherein the rotational axis (440) of the upper rope (44) is so arranged that the tangent to the upper rope (44) coincides with said vertical geometric axis (40) of the steering assembly (4), of the rope arm (21, 22) in the region of the upper rope (44), namely, towards the upper pulley (3) the running arm (22) of the rope (2) and in the direction towards the lower rope (45) the running arm (21) of the rope (2), viewed in the direction of the axis (440) ) the upper strings (44) are encircled by a blunt angle (a), preferably selected in the range between 100 ° and 170 °, and especially preferably between 120 ° and 150 °, characterized in that at least one of said strings (44, 45) of the steering assembly (4) is provided as a drive train to move the tow rope (2) in the area of the steering assembly (4), with the rope (32) of the upper pulley (3) being freely rotatable about its horizontal geometric axis ( 320). Forest winch according to claim 1, characterized in that the upper rope (44) of the routing assembly (4) is available as a drive rope. Forest winch according to claim 1 or 2, characterized in that at least one pressure roller (46, 47) radially pressed in the direction toward said is arranged directly next to each drive rope (44, 45) of the steering assembly (4). the drive ropes (44, 45) of the routing assembly (4). Forest winch according to claim 3, characterized in that two parallel spaced pressure cylinders (46, 47) are arranged adjacent to the top row (44) of the routing assembly (4), both of which are radially pressed in the direction toward said at the same time. the upper ropes (44) of the routing assembly (4). 5. The forest winch according to claim 4, characterized in that two parallel spaced pressure cylinders (46, 47) arranged in a common carrier (48) are arranged directly adjacent to the top rope (44) of the routing assembly (4). on its side of the vertical axis (40) of rotation of the steering assembly (4), said carrier (48) being movable in the direction of the upper rope (44) of the steering assembly (4) by means of a hydraulic cylinder (8). Forestry winch according to any one of the preceding claims, characterized in that each drive rope (44, 45) of the steering assembly (4) is driven by a hydraulic motor (9). Forestry winch according to claim 6, characterized in that each drive rope (44, 45) of the steering assembly (4) is driven by a hydraulic motor (9) and through a suitable gearbox (90) with a corresponding gear ratio. Forest winch according to claim 7, characterized in that the gearbox (90) is a chain gear.