HK1125352B - Winch - Google Patents

Description

The invention relates to a wind with a drum, a drum bearing on which the drum is mounted in a way that the drum can be rotated about a rotating axis, a support device on which the drum bearing is mounted in a way that the drum can be rotated about a rotating axis via at least one swing joint, and a actuator for actively shifting the drum around the swing axis, as defined in the general concept of claim 1.

The construction machinery is known from the state of the art with a large number of different drum winds. In the case of soil treatment tools, for example a drill bit, a slit-wall mill, a soil-mixing bar or a drill bar, these are guided on a mast and are carried by a lifting rope.

In addition, windings can be used for conveyor hoses, hydraulic hoses or electrical cables.

For a high durability, a clean winding on the drum is essential. For this, it is known to deflect the drum to adjust a desired angle of entry of the hose or rope. The inlet is also important for a clean winding on the drum, which in turn has an impact on wear.

A type of winch is known from DE 103 43 079 B3, which corresponds to the general concept of independent claim 1.This printed document describes a winch for operating a lifting rope for carrying a ground handling tool for a construction machine with a drum, a winch frame in which the drum is stored around a rotating axis, a winch against which the wind frame is stored with the drum via a swing joint that can be rotated around a swing axis.

WO 03/053821 A1 describes a wind system with a drum that can be rotated around a pivot axis. The pivot axis cuts the drum shaft so that the drum shaft performs a rolling motion around the pivot axis when the drum is rotated. Hydro-cylinders are provided for active rotation of the drum.

GB 2 296 001 A, US 4 002 321, FR 2 278 619 A and GB 21 32 971 A show other windings with a drum which can be rotated around a pivot axis.

GB 882 874 and GB 1249 405 also cover wind turbines with deflectable drums, where the deflection is caused by the rope force.

The purpose of the invention is to provide a fan with an actively deflectable drum, which is compact and space-saving and reliably operates.

The invention solves the problem by a wind with the characteristics of claim 1.

The characteristics of the fan according to the invention include that the swing axis runs within the drum and that the actuator is at least partially located within the drum.

The basic idea of the invention is to exploit the interior of the drum by incorporating various elements, in particular the actuator. This results in a particularly compact and space-saving arrangement of the winds. Furthermore, the elements arranged in the interior of the drum are particularly protected against external disturbances, such as mechanical effects and weather effects, and are thus less likely to wear out. This increases the service life of the sensitive actuator in particular, so that maintenance and repair costs for wear-related failures can be reduced.

The compact and robust arrangement of the winds allows them to be used effectively even in confined spaces, and in particular it is convenient to arrange the winds on a mobile transport medium of limited size.

The windscreen according to the invention is particularly advantageous for hoses, but is also suitable for all types of ropes and electrical or data cables.

The swinging storage of the drum around a swing axis allows a large optimum angle of the hose's contact with the drum to be selected or modified in a suitable way to ensure particularly reliable and precise opening with one or more layers of winding and at the same time very low wear.

The actuator can be implemented in different ways. It is particularly advantageous if the actuator has a hydraulic element, in particular a hydraulic cylinder. With such an element, relatively large forces can be exerted in a small space. This allows even particularly heavy and fully loaded drums to be reliably moved.

The advantage is that the actuator is directed to the drum bearing on the one hand and to the support device on the other. The actuator can be directed to a hub screw of the drum bearing, for example. In this way, a swing axis can be realized in a particularly simple way, which runs inside the drum. At the same time, the actuator can also be conveniently arranged inside the drum.

The angle between the pivot axis and the rotating axis can be either a sharp or a blunt angle. It is advantageous if the pivot axis is oriented transversely to the rotating axis. However, the angle between the pivot axis and the rotating axis is approximately 90°. This allows a symmetrical arrangement of a drum storage, which is particularly suitable for absorbing tensile forces, such as those that may occur when operating a construction machine.

The windpipe according to the invention is characterized, among other things, by the fact that the swing axis runs inside the drum. Such an arrangement can be carried out very compactly and space-saving. The drum swing bearing with the drum is stored on a support device via a swing joint. Such a swing joint can be used to absorb a significant part of the wind pull forces, so that a swing of the drum swing around the swing axis is possible with particularly low power consumption.

According to the invention, the actuator is at least partially located inside the drum, which allows for a particularly compact wind structure with special protection of the sensitive actuator against external mechanical influences.

It is also appropriate, according to the invention, to provide a deflection measuring device to measure a deflection, in particular a deflection angle, of the drum in relation to the support device, and, if appropriate, to provide a deflection measuring device with a set-value and/or an incremental value.

The actuator according to the invention for actively deflecting the drum into the pivot axis ensures particularly reliable opening and/or unwinding with low wear.

In principle, the actuator may have a gearbox which, for example, mechanically converts a slope of the mast into a bending angle. However, it is particularly suitable if the actuator has at least one hydraulic cylinder which can be directed to a hub of the drum-drill bearing on the one hand and to the support device on the other. This provides a particularly reliable and low-maintenance actuator.

A particularly useful embodiment of a wind according to the invention is characterized by the fact that a longitudinal measuring device is provided for measuring a length of tube opened and/or unwound by the drum. With known dimensions of the wind and/or the tube, such a length measurement can be used to locate an upcoming winding, i.e. an entry point, with respect to a longitudinal axis of the drum. This in turn allows the momentally optimal bending angle to be determined and the drum to be deflected accordingly via the actuator.

Finally, a particularly precise drum deflection is made possible by the provision of a control device for controlling the actuator, which is connected in particular to the deflection measuring device, in accordance with a further development of the invention.

The windscreen according to the invention is preferably a free-falling windscreen or a free-falling windscreen with residual traction and/or automatic towing.

It is advantageous if the support device has a C-shaped cross section with two support arms, on which the drum drum bearing is held over one rotating bolt each. This arrangement allows a very stable construction of the winds to be realized with little material consumption. At the open area of the support device, the hose can be extracted especially easily. The two support arms, which are directed over one rotating bolt each on the hub of the drum drum bearing, ensure an even distribution of the mechanical loads over the entire flow of the drum drum. This reduces the voltage of their rotation, which can lead to defects.

It is preferable to have a hose or cable connection which runs at least partly essentially along the axis of rotation of the drum. At such a connection, hoses can be connected to transport fluid media, for example suspensions, or to supply hydraulic or coolant. Cables for information transmission or electrical supply can also be connected. A so-called rotary conduit ensures a reliable connection between the stationary and the rotating part.

The axial arrangement of the drum with the axis of rotation prevents any twisting of the connected hose or cable even when the drum is rotated further, and a connection at this position is particularly easy to achieve by an installer and thus facilitates the connection of appropriate wires or devices.

The invention is characterised by the fact that a wind turbine is provided for in accordance with the invention.

The windpipe is particularly useful for operating a rope to carry a ground handling tool or a hose or cable to carry material or to supply hydraulics or electricity.

A further development of a construction machine according to the invention is to provide for a tilting device which makes it possible to tilt a mast to a base, in particular in relation to the direction of the hose and/or to an axis passing through the mast and the base, with a cross-sectional angle of up to 10°, preferably up to 5°, and to make holes and, where appropriate, piles with a corresponding horizontal inclination.

The invention also prefers to provide a tilt measuring device for measuring the transverse tilt of the mast relative to the base, which is connected to a control device for a wind turbine, the turbine being able to be used to deflect the drum according to the invention, which allows a transverse angle-dependent deflection of the drum around a swing axis in such a way as to minimise the bending effort of the rope when entering the drum.

In order to provide particularly large tensile forces, the invention prefers that the wind is located at the base body, and if appropriate, the wind is located at a part of the base body which is not inclined towards the base body by the tilt device.

The invention is further explained below by means of a preferred example of an embodiment, which is shown schematically in the drawings. Fig. 1a slanted front view of a windscreen according to the invention;Fig. 2a rear view of the windscreen according to Fig. 1;Fig. 3a view of the windscreen according to the invention in the deflected state; andFig. 4a view of the windscreen according to the invention in the non-deflected state.

Figures 1 to 4 show a wind according to the invention. The wind 1 has a cylindrical drum 10 for the reception of a hose or similar. On the surface of the drum 10 a profile 12 in the form of a protruding rifle is provided for the defined guidance and winding of the hose (not shown). Near its front sides 14, 14' are formed on the drum 10 circular coil walls 15, 15' to limit the lateral winding of the hose. The drum 10 is powered by a not shown drive motor, which is mounted on an outer axis base 17, with a rotating axis 13 rotating, which converges around the 13 cylindrical cylinders of the drum 10.

The tube is then connected to a rotary line 36 on the drum's rotation axis 13 and the rotary line 36 rotates with the drum 10 and forms a direct transition to a fixed connection 35 through which the tube can be connected to external devices, such as a pump. The drum 10 is stored on a hub disk 25 sections on a drum drill bearing 20.The swinging joint 40, 40' is formed at the 55' and 55' arms respectively as hinged joints with swing bolts. The supporting device 50 is directed via the swinging joints 40, 40' to the hub disc 25 in a way that it can be moved. The swinging axis 43 is formed by the connection line between the swinging joints 40, 40' and is perpendicular to the rotation axis 13 of the drum.

In the condition of the windpipe 1 shown in Fig. 3, the hydraulic cylinder piston rod has been moved one way inwards from the unshifted state of the drum 10 so that the rotation axis 13 of the drum 10 is deflected from the support device 50 by the angle of deflection α around the pivot axis 43. In the condition of the windpipe 1 shown in Fig. 4, the hydraulic cylinder piston rod has been removed from the piston housing and the drum 10 is in an unshifted state from the support device 50.

Claims (10)

1. Winch (1) comprising

   - a drum (10),

   - a rotary drum bearing (20), on which the drum (10) is supported in a rotating manner about an axis of rotation (13),

   - a supporting device (50), on which the rotary drum bearing (20) is supported in a pivotable manner together with the drum (10) by means of at least one pivot joint (40) about a pivot axis (43), and

   - an actuating drive (30) for the active pivoting of the drum (10) about the pivot axis,

   characterized in that

   - the pivot axis (43) extends inside the drum (10) and

   - in that the actuating drive (30) is arranged at least partially inside the drum (10).
2. Winch according to claim 1, characterized in that the actuating drive (30) has at least one hydraulic cylinder.
3. Winch according to claim 2, characterized in that the hydraulic cylinder is articulated on the one hand to a hub disk (25) of the rotary drum bearing (20) and on the other hand to the supporting device (50).
4. Winch according to any one of claims 1 to 3, characterized in thatthe pivot axis (43) is directed transversely to the axis of rotation (13), in that in particular the angle between the pivot axis (43) and the axis of rotation (13) amounts to approximately 90° and/or in that the pivot axis (43) extends approximately perpendicularly to a run-in plane of a hose or the like.
5. Winch according to any one of claims 1 to 4, characterized in that a pivot measuring device is provided for measuring a pivot angle (α) of the drum (10) with respect to the supporting device (50), which preferably has a set value transmitter.
6. Winch according to any one of claims 1 to 5, characterized in that a length-measuring device is provided for measuring a hose length wound onto and/or unwound from the drum (10).
7. Winch according to any one of claims 1 to 6, characterized in that a control device is provided for controlling the actuating drive (30), which is connected in particular to the pivot measuring device and/or the length measuring device.
8. Winch according to any one of claims 1 to 7, characterized in that the supporting device (50) has a C-shaped cross-section with two retaining arms (55, 55'), on which the rotary drum bearing (20) is retained by a respective pivot bolt.
9. Winch according to any one of claims 1 to 7, characterized in that a hose or cable connection (35) is provided, which extends at least partially in a substantial manner within the axis of rotation (13) of the drum (10).
10. Construction machine, in particular for foundation construction, characterized in that a winch (1) according to any one of claims 1 to 9 is provided.