WO2007112826A1

WO2007112826A1 - Conveyor apparatus

Info

Publication number: WO2007112826A1
Application number: PCT/EP2007/002142
Authority: WO
Inventors: Josef Schmidt; Jörg LEONHARDT; Günter Becker; Klaus Schwesinger
Original assignee: Sew-Eurodrive Gmbh & Co. Kg
Priority date: 2006-04-05
Filing date: 2007-03-12
Publication date: 2007-10-11
Also published as: CN101410318A; EP2004537A1; DE102006055253B4; DE102006055253A1; EP2004537B1; CN101410318B

Abstract

Conveyor apparatus, in particular for conveying people and/or loads against the direction of gravity, wherein the traversing platform has an electric drive which interacts with a toothed rack which is part of a module, wherein the drive can be supplied with power in a contactless fashion via a secondary coil which is inductively coupled to a primary conductor which is provided on the module.

Description

conveyor

Description:

The invention relates to a conveying device.

From EP 0 949 180 B1 a tow cable guide for construction hoists is known. The towing cable has a high weight, which increases with the height of the route of the construction hoist. The drive must be designed accordingly and it can be transported according to less payload against the gravitational direction.

From DE 91 16335 a construction hoist with rack and pinion drive is known. However, a tow cable is also necessary

The invention is therefore based on the object to improve the effectiveness of a conveyor, so to develop such a powerful.

According to the invention, the object is achieved in the conveying device according to the features indicated in claim 1.

Important features of the conveyor device are that it is modular in structure and at least one movably arranged, in particular recoverable, component comprises, wherein the component has an electric drive, which is supplied without contact with energy via at least one of the component included secondary coil, with a provided on the respective module primary conductor is inductively coupled.

The advantage here is that the platform is supplied wear-free. In addition, the modular design for extending the device by another module is advantageous. Because with a modular structure another module can be connected to the interface of the last module without any additional effort. The non-contact supply enables long lengths to be achieved without having to replace the supply cables. Compared to using a tow cable. With a trailing cable, the mass of the cable to be towed becomes larger and larger as it extends. Thus, the drive of the movably arranged component is increasingly loaded and it is with the component less conveyable goods. The conveyor is thus not only more effective and efficient but also more robust.

In the non-contact embodiment according to the invention, however, a primary conductor system section is to be provided on each module, which is correspondingly extended with the connection of the next module. In this way, the same mass of conveyed in the component is always eligible. Although a conductor rail would also have corresponding advantages, but is maintenance-intensive and not wear-free. In addition, when a conductor rail when removing the electrical power sparks, which should not be used in potentially explosive environments, such as wood-dusty and thus dust explosive environments.

The modular design also makes it possible for the component to receive a next module still to be connected as conveyed material and convey it to the end area of the conveying device. There, the transported module is connected to the conveyor. This joining comprises, after the mechanical connection, also a connection of the electrical components, in particular also an extension of the primary conductor system provided on the transported and connected module. After lengthening and energizing the module, it is thus also passable with the component. In this way, the conveyor device can be successively extended by one module in each case.

Another advantage is that for the production of the conveyor only one type of modules is always produce. The length of the conveyor is any multiple of the length of a module.

In an advantageous embodiment, in each case a connection module is provided in the connection region of two respectively adjacent modules

- For the completion of the primary conductor system, in particular for the electrical connection of the forward conductor and return conductor, or - for extension, in particular passage and for energizing the second

Module, the primary conductor system is providable.

The advantage here is that before the extension of the conveyor, the compound of the Hinleiters and return conductor is executable, so the completion of the elongated executed primary conductor loop. After lengthening, the primary conductor system of the newly added module is energized and then the said connection on the previous module separable. Thus, the connection module for effecting the energization of the extended primary conductor system is crucial.

In an advantageous embodiment, a locking device is provided on the connection module, with which forward conductor and return conductor of the primary conductor system are electrically separable or connectable. The advantage here is that the locking device can be executed with a mechanically realizable logic and thus the security can be increased. In particular, the locking device can be designed such that a separation of the Hinleiters from the return conductor only after the connection to the Hinleiter and return conductor portion of the adjacent module, ie passing, is effected. The advantage here is that the security is increased, since no separation of a substantial amount of current leading line takes place, but first the stream an additional current loop section is provided and then there is a separation of the parallel connection. Sparking is thus advantageously suppressed.

In an advantageous embodiment, the forward conductor and the return conductor can be connected by means of a respective plug, which cooperates with the locking device, in particular by means of a latchable guide part. The advantage here is that the mechanical realized logical order is mandatory.

In an advantageous embodiment, the primary conductors are inserted in a plastic profile, at the end region of the plug is formed, in particular the latchable guide member. The advantage here is that a plug can be formed in a simple manner, which cooperates with the locking device.

In an advantageous embodiment, the primary conductors are designed as stranded cable comprehensive, the individual stranded wires are executed against each other isolated. The advantage here is that HF-strand is usable and thus a known variety of cables in a cost effective manner.

In an advantageous embodiment, the primary conductor is partially stripped in the end region and / or the strand is materially connected in pins of the plug, in particular by means of a solder joint. The advantage here is that, surprisingly, a solder joint at medium frequency is used and the efficiency in the energy transfer is only slightly variable. In an advantageous embodiment of the connector is a Kunststoffgehäuse urned borders or sprayed accordingly. The advantage here is that a plug is electrically isolated in a simple manner.

In an advantageous embodiment, the connection module comprises such capacitors connected in series or in parallel to the inductances of the primary conductor system that the associated resonance frequency substantially corresponds to the center frequency of the current fed into the primary conductor system. The advantage here is that a compensation of the Streckeninduktivitäten in the connection module can be integrated and thus no further connection devices for electrically connecting the capacitances with the primary conductor system are necessary.

Important features of the invention in the lifting device are that the lifting device, in particular for the transport of people and / or loads against the

Gravity direction is provided, wherein the driving platform has an electric drive, which cooperates with a rack, which is covered by a module,

wherein the drive is contactlessly supplied with energy via a secondary coil which is inductively coupled to a primary conductor provided on the module.

The advantage here is that a larger payload is transportable, as tow cables are savings. In addition, a rack is used, which ensures the safe transmission of high forces. Thus, the module is not only used to line, centering the platform along the track, so has a rail-like function, but it will also mechanical forces transmitted through the module.

Due to the modular design different high lifting devices can be realized with little effort. Therefore, it is particularly interesting to create modules that have the mechanical driving force, the mechanical-geometric centering of the platforms and the electrical power supply with optional integrated information transmission functionally integrated. Depending on the system, only corresponding numbers of modules need to be connected to each other. The non-contact supply also allows long service life because it is low-wear.

In an advantageous embodiment, the lifting device is a construction hoist. The advantage here is that even in polluted environment a secure power supply is possible. In addition, large loads are transferable with little effort.

In an advantageous embodiment, the module, the rack and a cable holder, in particular cable channel, comprises, which are connected by means of fastening means, wherein the cable holder is provided for receiving a primary conductor. The advantage here is that the module includes the components and are integrally formed in this.

In an advantageous embodiment, the module has at its two ends located in the direction of travel in each case an interface for connection to other similar modules. The advantage here is that different lengths can be produced, with only one type of modules is always provided.

In an advantageous embodiment, the modules are fastened by means of fastening means on a base body. The advantage here is that different bodies are used, including racks, rail or walls.

In an advantageous embodiment, the secondary coil is connected in series or in parallel with a capacitor such that the associated resonant frequency essentially corresponds to the frequency of the current fed into the primary conductor, in particular to allow a large air gap between the primary conductor and the secondary coil. The advantage here is that sand or other pollution can not cause a disruption of energy transfer.

In an advantageous embodiment, the traveling platform comprises rollers and / or wheels, which are provided for positioning on the module during the driving movement, wherein the module comprises corresponding running surfaces, in particular on the rack. The advantage here is that the module has a variety of functions, in particular the leadership and leadership function for the platform. In an advantageous embodiment Aiurniniurn- parts are arranged between the rack and Prirrsärleiter, in particular for shielding alternating magnetic fields and reducing heat generation on the rack. The advantage here is that the rack made of mechanically strong steel or cast steel, in particular surface hardened cast steel, is manufacturable and the heating of the rack is reduced.

In an advantageous embodiment, the locking device comprises a pull rod for unlocking the shorting bridge, so disconnecting the electrical connection between Hinleiter and return conductor. The advantage here is that a hand-initiated introduction of

Separation of the short circuit and connecting to the downstream primary conductor system is executable.

In an advantageous embodiment, the locking device comprises at least one spring element, in particular whose spring force is directed and which is arranged such that a establishing of the electrical connection between Hinleiter and return conductor is effected. The advantage here is that a mechanically secured holding the switching state is effected.

Further advantages emerge from the subclaims.

Reference number list

1 driving platform 5 2 drive

3 module

4 first fastening means

5 basic body 20 rack

10 21 Cable duct

22 second fastening means

30 rack

31 module

32 connection module

15 33 Housing for secondary coil, which is inductively coupled to the right-hand primary conductor system

34 housing for secondary coil, which is inductively coupled to the left primary conductor system

35 forward

36 return conductor

37 Connector housing part 20 40 Litz cable

41 connector pins

42 guide part, latching 50 contact socket

60 Locking element 25 61 Clamping bracket

62 spring element

63 circlips

64 hole

65 gasket 30 66 borehole

67 end area

68 end area

70 connection area 80 pull rod Si spring mechanism

82 locking lever

83 locking assembly

K1 contact socket

K2 Contact socket K3 Contact socket K4 Contact socket C Capacitor

The invention will now be explained in more detail with reference to figures:

As a conveying device, a lifting device, in particular a construction hoist is described by way of example in FIG. However, the invention also relates to other modular conveyor devices comprising a movably arranged component. In this case, this component is conveyed, that is movable by the conveyor device. Depending on requirements, the component absorbs conveyed goods, such as humans, animals and / or loads.

FIG. 1 shows a construction hoist, that is to say a hoisting apparatus, in which the traveling platform 1 is provided as a movably arranged, conveyable component for transporting the payload. In this case, an electric drive 2 is arranged and connected to the driving platform 1, which cooperates with the rack 20 of the module 3, which is shown in more detail in Figure 2.

The module 3 comprises the rack 20 and a cable channel 21, which is connected to fastening means 22 on the rack 20.

The module 3 is designed such that it has at its two ends an interface for connecting to similar modules 3. Thus, many modules 3 are arranged in a row.

With these modules 3 a route can be assembled.

The modules 3 are fastened by means of the fastening means 4 on a base body, such as wall or rail.

After attachment of the modules to the main body 5, a usable as a primary conductor cable is inserted into the cable channel, preferably clipped. In the primary conductor, a medium-frequency alternating current from a power source is fed. In this case, frequencies between 10 and 100 kHz are advantageously used.

The drive 2 is equipped with a secondary coil which is moved along the parallel to the rack installed primary conductor and is inductively coupled to the primary conductor for transmitting high power, in particular more than 100 watts. Preferably, the Secondary coil and its means for cooling, so their cooling device, designed so that benefits up to 2kW are transferable.

The secondary coil is connected with at least one capacitor in series and / or in parallel such that the resonance frequency substantially corresponds to the center frequency. In this way, even with a weak inductive coupling, which occurs for example at a large air gap between the primary conductor and secondary conductor, a high efficiency in the transmission secured.

In further embodiments of the invention more than one secondary coil in the direction of travel are arranged one behind the other to make greater power transferable. In addition, services in the range of more than 10 kW in total are transferable.

In further embodiments of the invention, the secondary coil wound around a U-shaped C-shaped core.

In further embodiments according to the invention not only one primary conductor but a plurality of primary conductors are provided, in particular a forward conductor and the associated return conductor. In this case, then the secondary coil is wound around an E-shaped core. In this case, the middle leg of the E between the forward conductor and return conductor is arranged.

Preferably, the fastening means are connectable by means of clip connection with the respective components.

In further embodiments according to the invention, the travel platform has a control integrated on or in the drive. In addition, information is transferable by high-frequency modulation on the medium-frequency current.

FIG. 3 shows a further exemplary embodiment according to the invention. In this case, each module 31 comprises a toothed rack 30 on which the traveling platforms are movably arranged.

At the lower end of each module 31, a connection module 32 is arranged, which serves for the electrical extension or the terminations of the primary conductors associated with the respective primary conductor systems. The travel platforms comprise a plurality of housings, in particular the housings 33 for that secondary coil which is inductively coupled to the right-hand primary conductor system, and the housings 34 for that secondary coil which is inductively coupled to the left-hand primary conductor system. The secondary coils are connected in series or in parallel, wherein the associated resonance frequencies of the center frequency of the fed into the primary conductor systems flows substantially corresponds.

In Figure 3, a right and a left primary conductor system are shown, each laid as an elongated closed electrical loop. In this case, each primary conductor system thus comprises an elongate current conductor loop, which in turn in each case comprises a forward conductor 35 provided in the line conductor profile and a return conductor 36 provided in the line conductor profile. The elongated portions of the current loop are connected to respective connectors, including connector housing parts 37, to the connection module 32. In this case, the structure of the plug is shown in Figure 4a to 4c and illustrates the Verschaltungsart of the connection module 32 with reference to FIG 5.

By using the two parallel installed primary conductor systems, the double power can be transferred without contact to the lift, ie driving platform. The traveling platform is not shown in FIGS. 3 and 9, but comprises the illustrated housings (33, 34). The housing (33,34) is designed to accommodate E- or alternatively also U-shaped cores around which the secondary winding is provided around. In this way, the secondary coils are inductively coupled as well as possible to the primary conductor system, although a large air gap is foreseeable, which deteriorates the inductive coupling. Due to the large air gap, minor contamination between the secondary coil and the primary conductor system does not disturb much. Since the secondary coil is operated with the described capacity in resonance, a high efficiency is achievable despite the high air gap and the associated deteriorated inductive coupling.

The construction hoist is built up successively from the modules 31. The connection module 32 of the respective uppermost connection module serves as a line termination and for this purpose has an electrical connection between the forward conductor and the return conductor. After placing the next module, the short circuit is then canceled by means of a mechanical locking device, when the conductor loop of Hinleiter and return conductor of the next connection module 31 is connected. In Figure 4a, the items of the plug are shown exploded. In this case, two Litzenkabel 40 are provided in parallel in Linienleiterprofü 35 of the Hinleiters. Thus, the double primary current is feasible. On the stripped end portions of the stranded cable 40 connector pins 41 are soldered. With these and the latchable guide member 42, the entire plug is inserted into contact sockets 50 of the connection module 32.

In Figure 4b is a sectional view of the connector and the line conductor profile is shown. FIG. 4c shows an external view of the connector and the line conductor profile.

FIG. 5 shows the connection module 32 of the lower module 31 and the primary conductors belonging to the line conductor profile (35, 36), which are electrically connected in the contact sockets 50 of the connection module 32 of the upper module 31.

Before connecting the upper module, the contact sockets K1 and K3 are connected. In addition, the contact sockets K2 and K4 are connected. Thus, the double primary current is durchleitbar. The connection is effected by the locking device.

As soon as the connection module 32 of the upper module 31 is connected to the connection module 32 of the lower module 31 by means of the line conductor profiles (35, 36) comprising the forward and return conductors, the separation of the connection of the contact sockets K1 and K3 as well as K2 and K4 is.

The connection module 32 also comprises capacitors C, which are connected in series with the inductors of the primary conductor system and are dimensioned such that the associated resonant frequency of the primary conductor system together with capacitors essentially corresponds to the center frequency of the current fed in.

In Figure 6, a part of the locking device is shown in more detail. In this case, the housing is not shown but only one on the housing wall, oriented towards the plug provided seal 65th

When inserting the guide member 42 of the clamp is against the spring force of the spring element 62 is moved so that it is pushed out with its one end portion 67 of a borehole 66. Thus, now the safety bracket 63 in the direction of Bore 64 are pulled out. The arranged in an oblique recess of the securing bracket 63 locking element 6Q is pressed with its end portion 58 into a recess of the guide member 42 and thus locks the same.

On the safety bracket 63 and the bridge for electrically connecting the contact sockets K1 and K3 and K2 and K4 is provided.

It is important in the construction according to FIG. 6 that the withdrawal of the bridge can only be carried out after the insertion of the guide part 42 into the locking device. Thus, it is ensured that first the primary conductor sections of the new module are to be electrically connected and then the bridge is to be pulled out, ie to separate the termination of the primary conductor loop section of the preceding module:

In Figure 7, a simpler and faster connection is possible in a further embodiment of the invention. This is achieved by the two

Plug housing parts 37 are held together via a connecting portion 70, so that only a single insertion movement is executed. Thus, if a module as shown in Figure 9, to be placed and added to the upper end of the building elevator, the connector parts, comprising the connector housing 37, brought with a hand movement in conjunction with the contacts K1 and K3. Then then the must

Locking mechanism can be actuated, as shown in Figure 8, to perform the electrical energization of the primary conductor can.

In FIG. 8, essential parts of connection module 32 are shown. As already mentioned, after connecting the connector parts, comprising connector pins 41, in the mating connector parts of the contacts (K1, K2, K3, K4) designed as sockets, unlocking of the shorting bridge is made possible by pulling out the pull rod 80, wherein the locking levers 82 counter to Spring force of the spring element 81 arranged between them are pressed apart. Thus, then the locking assembly 83 is actuated, so that a withdrawal of the connector is prevented from the contacts. In this way, security against accidental and deliberate or expertly faulty disconnection of the primary conductors is increased.

In Figure 9 is still shown how the construction hoist partially indicated in Figure 3 is assembled. The module to be connected is shown at a distance from the elevator. It is mechanically connected after touchdown. Thereafter, the connectors are plugged in and thus the primary conductor after disconnecting the Kurzεchlussbrücke, a'so the electrical termination of the primary conductor system, in particular for the electrical connection of the Hinleiter and return conductor, the penultimate module of the elevator can be energized.

Incidentally, important features are apparent to those skilled in the figures from the figures.

In further embodiments of the invention, further electrical loads from the primary conductor system can be supplied by correspondingly further secondary coils are coupled to the primary conductor system. For example, an additional secondary coil can be coupled to one of the modules on the side remote from the platform of the primary conductor system, from which further consumers can be supplied, such as drills for processing the building to be built or associated lighting. Even a test-powered powering already installed in the building units is thus possible. Thus, for example, memories of control electronics of such units can be written during the construction phase in which no energization of the building is provided.

In further embodiments of the invention, other electrical loads from the primary conductor system can be supplied by further accordingly

Secondary coils are coupled to the primary conductor system. For example, an additional secondary coil can be coupled to one of the modules on the side remote from the platform of the primary conductor system, from which further consumers can be supplied, such as drills for processing the building to be built or associated lighting. Even a test-powered powering already installed in the building units is thus possible. Thus, for example, memories of control electronics of such units can be written during the construction phase in which no energization of the building is provided.

In further embodiments of the invention, the travel platform on a control cabinet, in which a controller and the motor of the drive supplying inverter are provided. In addition, information is transferable by high-frequency modulation on the medium-frequency current. Thus, the controller is in data exchange with a central control unit located on the ground. The control in the platform is also used for data exchange with the inverter connected and thus able to realize complex control processes. For this purpose, sensors and other actuators are provided which are connected to the controller. The inverter is also connected to a braking resistor for dissipation of generator-generated energy of the motor. In addition, the motor is also provided with an electromagnetically actuated brake.

Claims

claims:

1. conveyor device,

wherein the conveying device can be built up from modules and comprises at least one movably arranged, in particular conveyable, component, in particular traveling platform,

characterized in that the component, in particular traveling platform, has an electric drive which can be supplied with energy in a non-contact manner via at least one secondary coil encompassed by the component, which is inductively coupled to a primary conductor provided on the respective module.

2. Conveyor device according to at least one of the preceding claims, characterized in that in the connecting region of two respectively adjacent modules each have a connection module is provided, which - to complete the primary conductor system, in particular for the electrical connection of the forward conductor and return conductor, or optionally

- For extension, especially passage and for energizing the second module, the primary conductor system is providable.

3. Conveying device according to at least one of the preceding claims, characterized in that a connection module is provided on each module.

4. Conveyor device according to at least one of the preceding claims, characterized in that a locking device is provided on the connection module, with which forward conductor and return conductor of the primary conductor system are electrically separable or connectable.

5. Conveyor device according to at least one of the preceding claims, characterized in that the locking device is designed such that a disconnection of the electrical connection between Hinleiter and return conductor only after connecting the Hinleiters with the forward conductor of the adjacent module and after connecting the return conductor to the return conductor of the adjacent module, ie passing the Hinleiter- and return conductor currents, is effected.

6. Conveyor device according to at least one of the preceding claims, characterized in that

Hinleiter and return conductor can be connected by means of a respective plug, which cooperates with the locking device, in particular by means of a latchable guide member.

7. Fördervorrichiung according to at least one of the preceding claims, characterized in that the primary conductors are inserted in a plastic profile, at the end region of the plug 5 is formed, in particular the latchable guide member.

10 8. Conveying device according to at least one of the preceding claims, characterized in that the primary conductors are designed as stranded cable comprehensive, wherein the individual stranded wires are executed against each isolated.

9. Conveying device according to at least one of the preceding claims, characterized in that the primary conductor is partially stripped in the end region and / or the strand is materially connected in pins of the plug, in particular by means of solder connection.

20 10. Conveyor device according to at least one of the preceding claims, characterized in that the plug comprises a plastic housing or is encapsulated accordingly.

11. Conveying device according to at least one of the preceding claims,

25, characterized in that the connection module such, connected to the inductances of the primary conductor system in series or in parallel capacitances, that the associated resonant frequency substantially corresponds to the center frequency of the current fed into the primary conductor system current.

30

12. Conveyor device according to at least one of the preceding claims, characterized in that each module comprises at least one rack section.

5 13. Conveying device according to at least one of the preceding claims, characterized in that the conveying device is a lifting device, in particular for the transport of people and / or loads against the gravitational direction.

10 14. Conveying device according to at least one of the preceding claims, characterized in that the lifting device is a construction hoist.

15. Conveying device according to at least one of the preceding claims, 15 characterized in that the module comprises the rack portion and a cable holder, in particular cable channel, which are connected by means of fastening means, wherein the cable holder is provided for receiving a primary conductor.

20 16. Conveying device according to at least one of the preceding claims, characterized in that the module has at its two ends located in the direction of travel in each case an interface for connection to other similar modules.

25 17. Conveying device according to at least one of the preceding claims, characterized in that the modules by means of fastening means on a base body, in particular rail or

Wall, can be fastened or the modules are serially connected to each other to form the

Contraption. 30

18. Fördervorricπtuπg according to at least one of the preceding claims, characterized in that the secondary coil is connected in series or in parallel with a capacitor such that the associated resonant frequency of the frequency of the current fed into the primary conductor substantially corresponds, in particular to allow a large air gap between Primary conductor and secondary coil.

19. Conveying device according to at least one of the preceding claims, characterized in that the movably arranged component comprises rollers and / or wheels, which are provided for positioning and / or centering on the module during the driving movement, wherein the module comprises corresponding running surfaces, in particular on the rack.

20. Conveyor device according to at least one of the preceding claims, characterized in that between the rack and the primary conductor aluminum parts are arranged, in particular for shielding magnetic alternating fields and reducing heat generation on the rack.

21. Conveyor device according to at least one of the preceding claims, characterized in that the locking device comprises a pull rod for unlocking the shorting bridge, so separating the electrical connection between the forward conductor and the return conductor.

22. Conveyor device according to at least one of the preceding claims, characterized in that the locking device comprises at least one spring element, in particular whose spring force is directed and which is arranged such that a establishing of the electrical connection between Hinleiter and return conductor is effected.