EP4089043A1 - Cable crane installation - Google Patents

Abstract

Cable crane system (1) with - at least one carriage (100), - at least one suspension cable (2) on which the at least one carriage (100) is or can be arranged to be movable, - at least one traction cable (3) (circulating cable) which is on the at least one carriage (100) is arranged, and- at least one cable winch device (4) for moving the at least one carriage (100), by means of which the at least one traction cable (3) can be wound up and unwound, the at least one cable winch device (4) comprises at least one electric motor (5) for operating the at least one cable winch device (4), and that the at least one electric motor (5) can be operated as a generator, the at least one electric motor (5) operated as a generator being driven by a displacement movement of the at least one carriage ( 100) can be driven.

Description

The invention relates to a cable crane system with at least one carriage, at least one carrying cable on which the at least one carriage is or can be arranged so that it can be moved, at least one traction cable (circulating cable) which is arranged on at least one carriage, and at least one cable winch device for moving the at least a carriage, by means of which the at least one traction cable can be wound up and unwound.

Such cable crane systems are well known from the prior art and are often used to bring wood in forestry work on rough terrain and on steep slopes. When used on steep slopes, two different types of delivery are known, one of which is downhill delivery.

During downhill transport, the felled trees are transported from a mountain or slope location to a valley location using the cable crane system. One or more felled trees are attached to the carriage, which then travels down the valley along the carrying cable using gravitational acceleration. In the valley, the felled trees can be further processed and/or transported away.

In order to be able to convey more trees, the carriage must be transported back up the mountain or slope. The cable winch device and the traction cable are provided for this purpose. The traction cable is designed as a circulating cable. This means that the traction cable is arranged on the carriage and deflected at the highest point of the cable crane system (mountain or hillside) and to the Winch device is performed. By winding up the traction cable using the cable winch device, the carriage can be guided back into the mountain or hillside position.

In the prior art, an internal combustion engine is used to drive the cable winch device. This comes with some disadvantages.

Combustion engines in particular are a heavy burden on the environment due to high levels of pollutant and noise emissions. In the forestry sector in particular, this is particularly problematic with regard to the effects on the forest ecosystem. In addition, the potential potential energy of the trees, which is caused by the difference in height between mountain or slope location and valley location, is not used sensibly. Rather, this energy is released into the environment unused by the necessary braking systems, for example as thermal energy.

The object of the invention is to at least partially eliminate the disadvantages described above and to specify a cable crane system that is improved compared to the prior art.

This object is solved by the features of independent claim 1.

According to the invention, it is therefore first of all provided that the cable winch device comprises at least one electric motor for operating the at least cable winch device. This solves the problems caused by internal combustion engines. An electric motor also has other advantages, for example that right from the start of available, large torque. A tree is often attached to the carriage and then lifted or moved away from its storage location by moving the carriage. Especially if trees have been stored for a long time, they may have grown in or sunken into the ground. Then this torque is an advantage in order to be able to move the trees easily.

However, simply replacing an internal combustion engine with an electric motor is not easily possible. In particular, the energy supply of the electric motor represents a major challenge.

As a rule, logging takes place in remote and difficult-to-reach places. It is therefore practically impossible to supply the electric motor from the mains.

Supplying power from a rechargeable battery also makes no sense. Either the battery would have to be extremely large in order to be able to provide sufficient energy even for several days of wood bringing work. However, such a battery and its transport to the place of use would not be economically viable. Or the battery would have to be recharged after each working day, for which it would have to be transported to a suitable charging station.

Operating or charging the electric motor or an energy store feeding the electric motor via a photovoltaic system is also not expedient. On the one hand, this is due to the fact that in the forest and also on shady slopes there is not enough sunlight for a photovoltaic system to produce enough energy. In addition, a photovoltaic system could easily be damaged.

According to the invention it is therefore further provided that the at least one electric motor can be operated as a generator, wherein the at least one electric motor operated as a generator can be driven by a displacement movement of the at least one carriage.

As a result, on the one hand, the potential potential energy of the felled trees can be used when transporting them downhill. The carriage, together with the felled trees, travels down the support cable due to gravity. The traction cable is unwound over the deflection. When the traction cable is unwound, the at least one electric motor can be operated as a generator and driven by the unwinding. As a result, the potential potential energy of the felled trees can be converted into usable electrical energy.

This electrical energy can then subsequently be used, also with the interposition of an energy store, to feed the electric motor in order to move the carriage back up a mountain or slope. Thus, the problem of the energy supply of the electric motor is also solved by the subject of the invention.

Further advantageous embodiments of the invention are defined in the dependent claims.

Provision can preferably be made for the at least one cable winch device to comprise at least one cable drum onto which the at least one traction cable can be wound and unwound.

It can particularly preferably be provided that the at least one cable drum can be driven by the at least one electric motor and/or the at least one electric motor operated as a generator can be driven by the at least one cable drum when the traction cable is being unwound or wound up.

This represents a simple way of converting an unwinding movement of the traction cable during unwinding into a drive movement for the at least one electric motor operated as a generator.

Advantageously, the cable crane system can include at least one energy store for feeding the at least one electric motor, wherein the at least one energy store can be charged via the at least one electric motor operated as a generator.

The energy generated by the electric motor operated as a generator can be temporarily stored via the at least one energy store until it is required, for example to operate the at least one electric motor. Since the at least one energy store is charged each time the carriage travels downhill, it can be dimensioned significantly smaller than if it could only be charged once a day, for example.

In particular, the energy store can be designed as an accumulator. Since no excessively large capacities are required and the battery is essentially stationary, an inexpensive lead-acid battery or something similar can be used here. Of course, other rechargeable battery technologies or other energy stores, such as physical energy stores, are also fundamentally conceivable.

It can also be advantageous if the cable crane system has a battery management system (BMS) for monitoring, controlling and protecting the at least one energy store.

Safe and efficient charging and discharging of the at least one energy store can thus be ensured.

Provision can be made for the battery management system to monitor and/or regulate at least one of the following parameters: degree of charge (state of charge, SoC), voltage, current, current draw or consumption, temperature, degree of aging (state of health, SoH).

If the battery management system is part of the at least one energy store, a compact and small design of the crane cable system can be promoted.

Provision can particularly preferably be made for the at least one cable winch device to comprise a charging unit, via which at least one external consumer can be supplied with energy generated by at least one electric motor operated as a generator and/or energy stored in the energy store.

Excess energy, which is generated by the at least one electric motor operated as a generator, can therefore continue to be used in a sensible manner.

The charging unit can have at least one, preferably several, interfaces for connecting external consumers. The interfaces can include, for example, regular 230V sockets, 400V three-phase sockets, or Type 2 sockets for charging electric vehicles. In principle, however, it is conceivable to use sockets of any type.

It can also be provided that the charging unit includes a power converter unit.

The power converter unit can include, for example, inverters, step-up converters and/or step-down converters and so on, in order to be able to operate a wide variety of interfaces.

Advantageously, it can also be provided that the charging unit is designed for bidirectional charging.

This makes it possible to charge the at least one energy store via the at least one external consumer.

For example, electric chainsaws, electric pruners, electric debarking machines, mobile electric sawmills or also electric cars, electric excavators, electric trucks or the like can be provided as external consumers. Essentially, everyone can do it electrically operated device or vehicle can be charged via the energy generated by the at least one electric motor operated as a generator. The cable crane system acts as a "power plant", so to speak, which generates usable electrical energy from the potential energy of the felled trees.

The energy generated and thus available depends largely on the number of trees transported. The following "Proof-of-Concept" calculation is intended to roughly show that a cable crane system can actually provide enough energy to charge an electric car, for example.

Assuming only one tree load per carriage descent, a load of m = 2000kg on the carriage can be assumed. The altitude difference dH = 200m and F = 30 trips per day are assumed.

This results in the theoretically achievable energy at these values: $$\begin{array}{l}\mathrm{E}=\mathrm{m}\cdot \mathrm{G}\cdot \mathrm{ie}\cdot \mathrm{f}=2000\mathrm{kg}\cdot 9.81\mathrm{m}/{\mathrm{<figure-callout\; id="2"\; label="s"\; filenames="imgf0001.png,imgf0002.png"\; state="\{\{state\}\}">s</figure-callout>}}^{\mathrm{2}}\cdot 200\mathrm{m}\cdot 30=117.72\cdot {10}^6\mathrm{J}=\\ 32.67\mathrm{kWh}\end{array}$$

If one also includes the efficiency of the energy store η _battery =0.9, the electric motor operated as a generator η _Gen =0.92, the remaining electrical components η _E =0.95 and the mechanics η _m =0.99, the result is the actually usable energy becomes: $${\mathrm{n}}_{\mathrm{battery\; pack}}\cdot {\mathrm{n}}_{\mathrm{gene}}\cdot {\mathrm{n}}_{\mathrm{S}}\cdot {\mathrm{n}}_{\mathrm{m}}\cdot \mathrm{E}=25.44\mathrm{kWh}$$

Thus, the energy that is generated and available over a day in the worst case is 25.44 kWh. As a rule, of course, several trees are attached to the carriage, which multiplies the energy generated, for example quadruples with an average of four trees per trip. In addition, there are usually more than 30 trips per day and there are often larger differences in altitude.

If, for example, four trees are transported per trip on average, at least around 100 kWh are available, with which even electric cars with the largest battery capacities currently available can be fully charged.

As described in the introduction, trees are transported from a mountain or hillside location to a valley location when they are brought downhill. This means that the felled trees are removed from top to bottom. As a result, the height difference is reduced in the course of a timber harvesting process, since the trees in a higher position are removed after a certain time. This would result in an ever lower energy yield.

With a smaller height difference, there is also a smaller path that the trees have to be conveyed. With a shorter distance, however, the load, i.e. the mass, which is transported with the carriage, can also be increased. As a result, the losses caused by the smaller difference in height can be compensated for and an essentially constant energy yield can be ensured.

Particularly preferably, it can be provided that the carriage comprises at least two rollers, via which the carriage can be slidably arranged on a suspension cable, at least one hoist winch and a drive unit for driving the at least one hoist winch, and a further energy storage device for feeding the drive unit, with the additional Energy store can be charged via a generator that travels with the carriage.

In cable crane trolleys from the prior art, it is common for the drive unit to include an internal combustion engine for driving the at least one hoist winch. This comes with several disadvantages. On the one hand, the demands on such a combustion engine are extremely high due to the inclinations, vibrations and emission standards that occur, which has a negative effect on the costs. On the other hand, internal combustion engines pollute the environment heavily due to high levels of pollutant and noise emissions. In addition, energy that is generated when driving downhill with a load and could be used (recuperation) is wasted due to the necessary braking process.

If an electric motor is provided to drive the at least one hoisting winch, the problem of energy supply arises. Energy stores, which come into question for such a carriage in terms of their dimensions, generally have too low a capacity for meaningful operation of the carriage. In addition, kinetic energy, which would be available when driving downhill with a load, cannot be used in a trolley without energy recovery.

If it is provided that the energy store can be charged via a generator that travels with the carriage, the problem of the energy supply can be solved by the energy store being charged by the generator that travels with the carriage during operation. An energy storage device with a lower capacity and therefore suitable dimensions can thus be used, since the energy storage device is repeatedly charged during operation of the carriage.

Provision can preferably be made for the generator to be driven by a displacement movement of the carriage and/or by a rolling process of the at least one hoist winch.

As a result, the energy store is charged during the (quite numerous) movements of the carriage and/or unrolling processes of the hoist winch and enables energy-autonomous use of the carriage when pulling or lifting the load with the hoist winch.

A further battery management system can also be provided for monitoring, regulating and protecting the further energy store.

Provision can preferably be made for the generator to be driven via a parabolic disc.

In particular, it can also be provided that the generator is driven via a parabolic disc, which is wrapped by a traction cable (circulating cable).

These exemplary embodiments represent an uncomplicated, cost-effective and efficient option for charging the energy storage device, since the energy storage device is charged with every movement of the carriage. If the carriage moves downwards, the generator can also generate a braking effect. In this way, the generator can be used twice.

In the present application, a parabolic disk is referred to as a disk whose outer running groove has a parabolic contour in cross section for accommodating the traction cable winding(s).

It can also be provided that the generator is used as a drive unit, supporting the movement of the carriage by means of the traction cable guided over the parabolic disk.

This is advantageous if there are counter gradients on the suspension cable, for example if a suspension cable sags heavily in flat sections between two supports of a cable crane system. With the support of the generator used as a drive unit, such sections can be passed without any problems.

Provision can preferably be made for the drive unit to comprise an electric motor, the electric motor preferably being operable as a generator during a rolling process of the at least one hoist winch.

This energy can thus also be used to charge the energy store. Here, too, the as Generator-powered electric motor act as a brake. So energy is recuperated.

According to one aspect of the invention, the at least one carriage and the at least one hoisting winch can be operated simultaneously and the possibility of using the generator as a drive unit can support the movement of the carriage on the supporting cable via the traction cable wound around the parabolic disc.

Particularly advantageously, it can be provided that the at least one energy store can be charged by means of the control unit depending on a state of charge of the further energy store and/or the further energy store can be charged depending on a state of charge of the at least one energy store

As a result, the energy store that requires the most energy can be charged in each case. If one of the energy storage devices is already fully charged, the other energy storage device can be charged. As a result, as much energy as possible can be converted into usable electrical energy.

In one exemplary embodiment, it can be provided that the at least one carriage and/or the at least one cable winch device can be remotely controlled via a remote control, preferably a radio remote control.

The at least one carriage and/or the at least one cable winch device can/can preferably be used for this purpose Have radio module for receiving and / or sending data from or to the remote control.

A remote controllability of the at least one carriage and/or the at least one cable winch device has several advantages. On the one hand, it represents the simplest way of controlling the at least one carriage. On the other hand, a user can use a remote control not only to control the at least one hoist winch, but also to receive and monitor parameters and properties of the drive unit, the energy storage device and/or the generator as well as change. If the cable winch can also be controlled via the remote control, one or more users can operate a complete cable crane system via the remote control.

Provision can particularly preferably be made for the at least one cable winch device, the at least one carriage and/or the at least one external consumer to be in a preferably wireless data connection with one another.

This basically enables communication between the at least one cable winch device, carriage and/or the at least one external consumer. In interaction with other components of a cable crane system, in particular the control unit described below, this data connection can be used for a variety of purposes.

• des wenigstens einen Elektromotors,
• des wenigstens einen Energiespeichers,
• der Ladeeinheit,
• der Antriebseinheit,
• des Generators,
• des weiteren Energiespeichers,
• einer Fernsteuerung, und/oder
• einer Datenverbindung

umfasst.Provision can preferably be made for the cable crane system to have at least one control unit for open-loop and/or closed-loop control

• the at least one electric motor,
• the at least one energy store,
• the loading unit,
• the drive unit,
• of the generator
• further energy storage,
• a remote control, and/or
• a data connection

includes.

The entire cable crane system can thus be controlled and/or regulated via the control unit. In particular, however, the interaction of the energy stores and electric motors or generators can be controlled and regulated with one another.

According to one embodiment, it can be provided that the at least one control unit is arranged on or in the at least one cable winch device and/or on or in the at least one carriage or separately from the at least one cable winch device and the at least one carriage.

As a rule, the control unit will be arranged on or in the at least one cable winch device, since space requirements and weight play less of a role in the at least one stationary cable winch device than, for example, in the carriage.

Provision can be made for the at least one carriage to have a further control unit for controlling and/or regulating the carriage, in particular the drive unit, the generator and/or the further energy store.

As a result, the control unit of the cable crane system can be relieved, since not all control and/or regulation processes have to be processed via the control unit. In addition, control and/or regulation processes that only affect the carriage can be processed more quickly, since data does not first have to be transmitted between the carriage and the control unit, then processed at the control unit and finally sent back to the carriage.

If the electric motor is operated as a generator, it also acts as a brake, which brakes the movement of the carriage by braking the cable drum.

In addition to this, it can also be provided that the at least one cable winch device has at least one braking device.

This braking device is used to brake the at least one carriage in the event that the braking power of the at least one electric motor operated as a generator is too low or all energy stores are full and braking power can therefore no longer be achieved.

Such a braking device can, for example, an electrodynamic (eddy current brake) or hydrodynamic retarder or a wind vane.

In addition, a preferably mechanical dead man's switch can advantageously be provided, which brakes the carriage in the event of a power failure or the like.

A user interface can also be provided, preferably on the cable winch device and/or on the remote control.

This user interface can display a wide variety of data, for example the state of charge of the energy store and/or the additional energy store, the energy consumption of the at least one external consumer, etc.

A warning device is also conceivable. If both energy accumulators are fully charged, this warning device can warn a user that energy will be converted into unusable energy (heat energy when braking) on the next descent.

Provision can also be made for the cable crane system to have an automatic aiming system.

Without automatic targeting, an operator, a so-called winch operator, is required to brake the carriage in front of each support in order to ensure that the supports are safely driven over.

This is no longer necessary with an automatic aiming system, the carriage is automatically slowed down accordingly. All you have to do is carry out a programming run after the cable crane system has been set up.

Provision can preferably be made for the cable crane system to have maximum dimensions (L x W x H) of 5.8 m x 2.3 m x 2.3 m in a transport state.

This makes it possible to load the cable crane system into a 20-foot ISO container while it is being transported. The cable crane system is therefore easy to transport.

Provision can also be made for the cable crane system to remain at least partially on a transport vehicle, for example a truck or trailer, in an operating state.

For example, a tilting mast cable device and the at least one cable winch device can be arranged in a stationary manner on the transport vehicle. This favors quick erection and dismantling of the cable crane system.

Further advantageous embodiments of the invention are defined in the dependent claims.

Fig. 1

eine schematische Darstellung einer Seilkrananlage,

Fig. 2

eine schematische Seitenansicht eines Laufwagens,

Fig. 3a

eine schematische Frontansicht eines Laufwagens,

Fig. 3b

eine schematische Rückansicht eines Laufwagens, und

Fig. 4

ein schematisches Blockschaltbild einer Seilkrananlage.

Further details and advantages of the invention are based on the
Figure description with reference to the drawings explained in more detail below. Show in it:

1

a schematic representation of a cable crane system,

2

a schematic side view of a carriage,

Figure 3a

a schematic front view of a carriage,

Figure 3b

a schematic rear view of a carriage, and

4

a schematic block diagram of a cable crane system.

the figure 1 shows a schematic representation of a cable crane system 1. A carrying cable 2 can be seen, with a carriage 100 being movably mounted on the carrying cable 2 via rollers 102. The rollers 102 are arranged on support arms 112 .

The suspension cable 2 is stretched between two trees via bearing rollers 2a and then anchored to the ground (not visible). However, the carrying cable 2 can also be tensioned between a tree and a tipping mast cable device, between two tipping mast cable devices or between other suitable objects.

A traction cable 3 is arranged at one end on the carriage 100 and can be rolled up or down via a cable winch device 4 . The traction cable (circulating cable) 3 is guided over the deflection pulley 3a in such a way that rolling up the traction cable 3 by means of the cable winch device 4 leads to a movement of the carriage 100 in the direction of the deflection pulley 3a. A second deflection pulley 3b is used to guide the traction cable 3 parallel to the suspension cable 2 .

If the carriage 100 travels down the valley, ie in the direction of the cable winch device 4, the traction cable 3 is unwound from a cable drum 4a (not shown). When rolling, the cable drum 4a drives the electric motor 5 (not visible) operated as a generator, whereby the potential energy of the carriage 100 with the load in the form of a tree is converted into usable electrical energy and the carriage 100 is also braked.

Here again there is the possibility of arranging the deflection rollers 3a and 3b not on a tree but on a tilting mast cable device or another suitable object.

This energy can then be used to operate the electric motor 5 . For this purpose, the energy can be temporarily stored in the energy store 6 . The energy store 6 is not shown, but can be adjacent to the cable winch device 4, for example.

Various external loads V can also be charged and/or operated via interfaces 7a of a charging unit 7 using the generated energy. An electric chainsaw and an electric truck are shown here as examples.

The traction cable 3 is also performed in the carriage 100, which is mainly in the figure 2 is better visible.

The carriage includes a hoist winch 103 with a hoist rope 103a. A fastening means 103b is provided on the hoist rope 103a, via which loads can be fastened to the hoist rope 103a. The lifting means 103b can be a loop, a gripper or the like, for example. In the present exemplary embodiment, the load is a tree, but in principle other loads can also be transported by a carriage according to the invention.

the figure 1 also shows a remote control 8, via which the carriage 100 and the cable winch device 4 can be remotely controlled. The wireless connection between these components is marked by corresponding symbols.

the figure 2 shows a schematic side view of a carriage 100. It can be seen how the carriage 100 is arranged on the supporting cable 2 such that it can be moved via the rollers 102.

The traction cable 3 is connected to the carriage 100 at an attachment point 3c and is moved in the pulling direction Z in order to move the carriage in the direction of the deflection roller 3a. After being deflected via the deflection roller 3a, the traction cable 3, guided by the guide roller 3d, is guided into the carriage 100. The traction cable 3 then loops around the parabolic disc 106 in the carriage 100.

Accordingly, the parabolic disk 106 is rotated with each movement of the traction cable 3 . About a belt drive 107a is the Transfer the rotational movement of the parabolic disc 106 to a generator 107, which converts the rotational movement into electrical energy. The traction cable 3 is then guided out of the carriage 100 again via a further guide roller 3d.

A hoist winch 103 with a hoist cable 103a can also be seen. The hoist rope 103a can be rolled up or down on a drum 103c of the hoist winch 103 . The drum 103c is driven by a further electric motor 104a of the drive unit 104 via a belt drive 104b and via a transmission with a brake 104c. A hoisting rope guide roller 103d serves to guide the hoisting rope 103a. A lifting device 103b is only indicated.

When the hoist rope 103a is unwound, in particular when a load is hanging on the hoist rope 103a, the further electric motor 104a can be operated as a generator and thus convert the rotational movement of the drum 103c into electrical energy when unwound via the belt drive 104b.

The generator 107, the further electric motor 104a, the energy store 105, the further control unit 108 and the radio module 110 are correspondingly connected to one another with electrical lines, not shown.

The energy store 105 can be charged via the further control unit 108 with the energy generated by the generator 107 and/or the further electric motor 104a operated as a generator. The other control unit 108 monitors and regulates or controls the charging process, so that the Energy storage 105 is always charged properly and efficiently.

In addition, the further electric motor 104a can also be controlled via the control unit 108 . Corresponding control commands can, for example, be received by the radio module 110 and processed and forwarded by the control unit 108 .

The control unit 9 can be relieved by this further control unit 108 since only the control and/or regulating processes relating to the carriage 100 can be carried out directly on the carriage 100 . In particular, the further control unit 108 can also receive commands from the control unit 9, for example via the radio module 110, and further process and forward them.

In addition, data such as sensor data from the generator 7, the additional electric motor 4a or the additional battery management system 105a can also be sent via the radio module 110 to the remote control 8 and/or the control unit 9 for further processing.

the Figure 3a shows a schematic front view of a carriage 100 according to the invention, the Figure 3b a schematic rear view of a carriage 100 according to the invention.

It can be seen that the carriage 100 has a support beam 111 to which the support arms 112 are also attached. The support arms 112 are arranged eccentrically, the rollers 102, however, in the middle. The rollers 102 rest on the suspension cable 2 . Of course, any suitable configuration of rollers 102 is conceivable and not just the one shown here.

The traction cable 3 is guided into the carriage 100 and up onto the parabolic disc 106 via the guide roller 3d. The traction cable 3 loops around the parabolic disc 106 once or twice, as a result of which it is driven by each movement of the traction cable 3 . It can be seen that the traction cable 3 on the parabolic disc 106 is offset by a carrying cable diameter, which makes a corresponding looping possible in the first place.

The parabolic disc 106 is connected to the belt drive 107a, which drives the generator 107, via a gear 106a.

In the Figure 3b the drum 103c of the hoist winch 103 can also be seen. A part of the hoisting rope 103a is wound on the drum 103c. The unwound portion of the hoist rope 103a is guided over the hoist rope guide pulley 103d.

the figure 4 shows a schematic block diagram of a cable crane system 1. A block diagram of the carriage 100 and the cable winch device 4 can be seen.

The carriage 100, the cable winch device 4 and the remote control 8 are in data connection D with one another via the radio modules 110 and 8a. The dotted lines show this indicates that it is a wireless connection, while the solid lines between the components of the cable winch device 4 and the carriage 100 indicate a wired connection. This could be implemented, for example, via a bus system such as a CAN bus.

It can be seen that the further control unit 108 is connected to all electrical components of the carriage 100 and the control unit 9 is connected to all electrical components of the cable winch device 4 . A battery management system 10 can also be seen here. The control unit 9 is also in a data connection with the further control unit 108 and the at least one external load V via the radio module 8a.

The control unit 9 can therefore receive data from all subsystems of the cableway system 1 and the at least one external consumer V, and also transmit commands, instructions, etc. to the subsystem.

The control unit 9 thus coordinates the entire cableway system 1. Some examples are given below of how this fact can be used to advantage.

The energy store 6 is fully charged and no energy is drawn from it, for example by external consumers V. The carriage 100 is driving downhill with the load and has to be braked.

The control unit 9 knows the status of the entire cableway system 1. Instead of now braking the carriage 100 via the at least one braking unit, and thereby releasing energy unused into the environment, the control unit 9 can use the generator 107 to brake the carriage 100 via the parabolic disc 106 to break. As a result, the additional energy store 105 can be charged.

If, for example, the additional energy store 105 is already fully charged but the energy store 6 is not, the control unit 9 can only brake the carriage 100 via the electric motor 5 operated as a generator and thereby charge the energy store 6 .

In addition, the required braking power can also be set via the control unit 9 .

If, for example, speed data of the carriage 100 are known from a speed sensor, the speed of the carriage 100 can also be kept constant via the control unit 9 . In areas with a steep incline, the carriage 100 can be braked more strongly and braked less strongly in flat sections, or it can even be supported in a displacement movement by the generator 107 operated as a motor and the parabolic disc 106 .

Reference list:

1

Cable Crane System

2

carrying rope
2a bearing rollers

3

pull rope
3a pulley
3b second pulley
3c anchor point
3d guide rollers

4

winch device
4a cable drum

5

electric motor

6

energy storage

7

loading unit
7a interface

8th

Remote control
8a radio module

9

control unit

10

battery management system

100

trolley

102

casters

103

hoist winch
103a hoist rope
103b lifting means
103c drum
103d hoist fairlead

104

drive unit
104a further electric motor
104b belt drive
104c gearbox with brake

105

energy storage
105a further battery management system

106

parabolic disc
106a gearbox

107

generator
107a belt drive

108

control unit

109

Remote control

110

radio module

111

support beam

112

carrier arms

D

Data Connection

V

external consumer

Z

pulling direction

Claims (15)

Cable crane system (1) with - at least one carriage (100), - at least one suspension cable (2) on which the at least one carriage (100) is or can be arranged so that it can move, - At least one traction cable (3) (circulating cable) which is arranged on the at least one carriage (100), and - at least one cable winch device (4) for moving the at least one carriage (100), by means of which the at least one traction cable (3) can be wound up and unwound, characterized in that the at least one cable winch device (4) comprises at least one electric motor (5) for operating the at least one cable winch device (4), and in that the at least one electric motor (5) can be operated as a generator, the at least one electric motor operated as a generator (5) can be driven by a movement of the at least one carriage (100). Cable crane system according to claim 1, wherein the at least one cable winch device (4) comprises at least one cable drum (4a) onto which the at least one traction cable (3) can be wound and unwound. Cable crane system according to claim 2, wherein the at least one cable drum (4a) can be driven by at least one electric motor (5) and/or the at least one as Generator-operated electric motor (5) when unwinding or winding up the traction cable (3) from the cable drum (4a) through the cable drum (4a) can be driven. Cable crane system according to one of claims 1 to 3, wherein the cable crane system (1) comprises at least one energy store (6) for feeding the at least one electric motor (5), the at least one energy store (6) being powered via the at least one electric motor (5 ) is chargeable. Cable crane system according to one of Claims 1 to 4, the at least one cable winch device (4) comprising a charging unit (7) via which at least one external consumer (V) is supplied with energy generated by the at least one electric motor (5) operated as a generator and/or energy stored in at least one energy store (6) can be fed. Cable crane system according to one of Claims 1 to 5, in which the at least one carriage (100) has at least two rollers (102) via which the at least one carriage (100) can be arranged in a movable manner on a carrying cable (2), at least one hoist winch (103) and a drive unit (104) for driving the at least one hoist winch (103), and a further energy store (105) for feeding the drive unit (104), the further energy store (105) via a generator traveling with the at least one carriage (100). (107, 104a) can be charged. Cable crane system according to claim 6, wherein the generator (107, 104a) is driven by a movement of the at least one carriage (100) and/or by a rolling process of the at least one hoist winch (103). Cable crane system according to one of claims 6 or 7, wherein the drive unit (104) comprises an electric motor (104a), wherein the electric motor (104a) can be operated preferably as a generator during a rolling process of the at least one hoist winch (103). Cable crane system according to one of claims 1 to 8, wherein the at least one cable winch device (4), the at least one carriage (100) and/or the at least one external consumer (V) are in a preferably wireless data connection (D) with one another. Cable crane system according to one of Claims 1 to 9, the at least one carriage (100) and/or the at least one cable winch device (4) being remotely controllable via a remote control (8), preferably a radio remote control. Cable crane system according to one of Claims 1 to 10, the cable crane system (1) having at least one control unit (9) for open-loop and/or closed-loop control - the at least one electric motor (5), - the at least one energy store (6), - the loading unit (7), - the drive unit (104), - the generator (107, 104a), - the further energy store (105), - a remote control (8), and/or - a data connection (D) includes. Cable crane system according to claim 11, wherein the at least one control unit (9) on or in the at least one cable winch device (4) and/or on or in the at least one carriage (100) or separately from the at least one cable winch device (4) and the at least one Carriage (100) is arranged. Cable crane system according to one of claims 11 or 12, wherein at least one of the carriages (100) has a further control unit (108) for controlling and/or regulating the carriage (100), preferably the drive unit (104), the generator (107, 104a) and / or the further energy store (105). Cable crane system according to one of claims 11 to 13, wherein by means of the control unit (9) the at least one energy store (6) depending on a state of charge of the further energy store (105) and/or the further energy store (105) depending on a state of charge of the at least one energy store (6) are/is chargeable Cable crane system according to one of Claims 1 to 14, characterized in that the cable crane system (1) has maximum dimensions of 5.8 mx 2.3 mx 2.3 m (LxWxH) in a transport state.

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