Conveying system having plurality of moving devices for transporting objects along conveying section

Abstract

The utility model relates to a conveying system with a plurality of moving devices used for conveying objects along a conveying road section, each moving device is respectively provided with at least one electric consumer, and each moving device is supplied with electric power in an inductive mode through a primary conductor which is fixedly arranged, is applied with alternating current and is laid along the conveying road section. Wherein the secondary coils are fixed on a side of the mobile device facing the primary conductor, and wherein the one or more first secondary coils are oriented perpendicular to the one or more second secondary coils.

Description

Technical Field

[0001] The utility model relates to a conveying system with a plurality of moving devices for conveying objects along a conveying section, in particular to a conveying system. Background Art

[0002] It is known that objects can be transported by means of moving devices. Utility Model Content

[0003] It is therefore an object of the invention to improve a conveying system, in particular a transport system, having a moving device, wherein the moving device is to be continuously supplied with power.

[0004] According to the present invention, this object is achieved by a conveying system, in particular a transport system, of a mobile device having the following characteristics.

[0005] With regard to a conveying system, in particular a transport system, having a plurality of moving devices, in particular platforms, in particular mobile pallets (skillets), for transporting objects along a conveying path, an essential feature of the invention is that each moving device has at least one electrical consumer.

[0006] Each mobile device is supplied with electric power inductively by a fixed primary conductor to which an alternating current is applied and which is laid along the conveying section.

[0007] wherein the secondary coil is fastened, in particular in a rotationally fixed manner, to a chassis / frame of the mobile device on a side of the mobile device facing the primary conductor, in particular on the bottom side of the mobile device, in particular the secondary coil is inductively coupled to the primary conductor,

[0008] Therein, one or more first secondary coils are oriented perpendicularly to one or more second secondary coils, in particular wherein the axis of rotation of the first secondary coils by 90° relative to the second secondary coils is parallel to the normal direction of the base surface of the conveyor section.

[0009] The advantage here is that the mobile device can be transported by the transport system in different orientations. The operator or fitter can thus easily work on all sides of the received object. The lifting mechanism is powered via inductive coupling as a consumer and the secondary coil is wound around a ferrite core which allows energy to be transferred only in a first orientation and not in other orientations.

[0010] In an advantageous embodiment, the mobile device is powered in a first orientation via one or more first secondary coils and in a second orientation via one or more second secondary coils.

[0011] In particular, the movement device is rotated in the second orientation about a rotation axis parallel to the normal direction of the flat base surface of the conveying section by a non-zero angle, in particular 90°. This has the advantage that power supply can be achieved on different power paths depending on the orientation.

[0012] In an advantageous design, the secondary coils are designed to be structurally identical to each other, in particular identical to each other. The advantage here is that low-cost mass production can be achieved, and multiple secondary coils can be arranged on the bottom side of the mobile device without significantly increasing costs.

[0013] In an advantageous embodiment, one or more first secondary coils are designed to be structurally identical to one or more second secondary coils, in particular identical thereto, but are in particular arranged rotated by 90° relative to one another, in particular about a rotation axis parallel to the normal direction of the base surface of the conveyor section. This has the advantage that cost-effective production can be achieved and a large number of secondary coils can be provided at low cost.

[0014] In an advantageous embodiment, each secondary coil is connected in series or in parallel with a capacitor, so that the resonance frequency of the oscillating circuit formed thereby is identical to the frequency of the alternating current applied in the primary conductor. This has the advantage that a high efficiency can be achieved even if the inductive coupling between the primary conductor and the respective secondary coil fluctuates.

[0015] In an advantageous design, the first secondary coil is arranged along a first straight line.

[0016] Wherein, the second secondary coil is arranged along the second straight line,

[0017] In particular, the first straight line is perpendicular to the second straight line, and / or the first straight line and the second straight line form a plane parallel to the base surface of the conveying section. The advantage here is that when power is supplied via the first secondary coil, the first straight line is parallel to the conveying section direction, and when power is supplied via the second secondary coil, the second straight line is parallel to the conveying section direction.

[0018] In an advantageous embodiment, the first straight line intersects the center of gravity of the chassis of the mobile device or the center of gravity of the mobile device. An advantage here is that the first secondary coil is arranged centrally on the mobile device, so that the primary conductor is also oriented centrally relative to the mobile device.

[0019] In an advantageous embodiment, the distances between the base surface of the conveying section and the respective first secondary coil or second secondary coil are respectively the same value. This has the advantage that the secondary coils can be arranged on the bottom side of the moving device.

[0020] In an advantageous embodiment, the conveying system has a roller conveyor belt / roller track, on which the moving device rests and by which the moving device can be conveyed along the conveying path.

[0021] The mobile device has a plate-like base member which is placed on the rollers of the roller conveyor belt.

[0022] Especially wherein, the conveying system has side guides or side boundaries for the moving device, especially thereby can prevent lateral drift / yaw of the moving device. Advantageously, the moving device structure is very simple, and basically only the lifting mechanism needs to be constructed on the plate-shaped base part.

[0023] In an advantageous embodiment, each mobile device has a lifting mechanism, in particular a height-adjustable workbench, which has an electric motor, wherein the electric motor serves as an electrical consumer for the mobile device.

[0024] In particular, the vertical height of the objects received on the lifting device has different values ​​depending on the position of the mobile device along the travel path, in particular the objects are received in the mobile device at different heights at different path positions. This has the advantage that the working height is automatically adjusted when traveling over the conveying path, and this is preferably controlled as a function of the orientation.

[0025] In an advantageous embodiment, the conveying system has a rotating table placed on the base surface in the conveying section, which rotates the moving device by a non-zero angle, in particular 90°, about a rotation axis parallel to the normal direction of the flat base surface when passing over the rotating table. This has the advantage that the moving device can be oriented by the rotating table. Therefore, the moving device does not require a steering drive or the like.

[0026] In an advantageous design, the lifting mechanism lifts the received object to a first vertical position when powered by the first secondary coil, and lifts the received object to a second vertical position when powered by the second secondary coil.

[0027] In particular, the height of the object depends on the orientation of the mobile device. The advantage here is that the lifting mechanism does not need to be specifically controlled according to the position detected along the conveying section, but the working height is adjusted fully automatically according to the position of the mobile device in the conveying section.

[0028] In the method for operating a conveying system with a plurality of moving devices, an essential feature is that each moving device has an electrically driven lifting mechanism which lifts the objects received on the lifting mechanism to different height positions.

[0029] wherein, depending on the orientation of the mobile device relative to the conveying section of the conveying system, the mobile device is powered by the first secondary coil or the second secondary coil,

[0030] in,

[0031] - controlling the height of the object achieved by the lifting mechanism as a function of the orientation of the moving device relative to the conveying path, in particular automatically, and / or

[0032] - Depending on whether the power is supplied by the first secondary coil or the second secondary coil, the height of the object achieved by the lifting mechanism is controlled.

[0033] The advantage here is that the working height is automatically adjusted for the assembler without the need for control on the moving device. Since the orientation changes when passing the rotary table, the second secondary coil is now supplied with power instead of the first secondary coil. The working height is adjusted accordingly, so that a first working height is provided before passing the rotary table and a second working height is provided after passing the rotary table.

[0034] The utility model is not limited to the above-mentioned feature combination. For those skilled in the art, in particular, other reasonable combinations of the above-mentioned feature combination and / or individual features and / or features to be described below and / or features of the accompanying drawings can be obtained from the purpose proposed and / or the purpose proposed by comparison with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The utility model is described in detail below according to the accompanying drawings:

[0036] Figure 1 A schematic top view of a conveying system, in particular a transport system, according to the invention is shown, which has a moving device 1 , in particular a platform, in particular a mobile pallet, for transporting objects.

[0037] Figure 2 A plan view of the bottom side of a mobile device 1 is schematically shown.

[0038] List of reference numerals:

[0039] 1 Mobile device

[0040] 2 Lifting mechanism

[0041] 20 Secondary coil

[0042] 30 Rotating table

[0043] 31 Side guides / side boundaries

[0044] 32 corner commutator DETAILED DESCRIPTION

[0045] The conveying system has a corner switch 32 and a rotating table 30 as well as a side guide device / side boundary 31 in the conveying section. The corner switch does not change the orientation of the mobile device 1, but causes the transport direction to change. The rotating table changes the orientation of the mobile device, especially the orientation changes by 90°. The side guide device / side boundary guides the mobile device 1 along the conveying section.

[0046] As shown in the figure, a lifting mechanism 2 is arranged on the moving device 1 , with which an object received on the moving device 1 , in particular a vehicle body, can be brought to a desired height.

[0047] The mobile devices 1 are arranged one after another along the track of the conveying system. During operation, the mobile devices 1 are accordingly transported one after another. For this purpose, a roller conveyor belt is arranged on the base surface of the conveying section, on which the mobile devices 1 are placed. For this purpose, rollers are arranged on the horizontal base surface, which are rotatably supported, and at least some of the rollers can be driven into rotational movement by motors. The axes of rotation of the rollers are arranged in a plane parallel to the flat base surface of the conveying section.

[0048] When the rollers rotate, the moving device 1 is conveyed along the roller conveyor belt. The side guides prevent the moving device 1 from lateral deviation. The moving device 1 is placed on the rollers via a base plate, while the rollers are arranged fixedly.

[0049] The contact surface, in particular the support line, lies in a plane parallel to the base surface of the conveying section. This plane is in particular a horizontal plane.

[0050] For example, in this way, a vehicle body as an object is guided along a rail in an assembly shop. Thus, an operator in the assembly shop can carry out the corresponding assembly steps on the vehicle body. By means of the lifting mechanism 2, the object received, in particular the vehicle body, can be brought into a specified vertical position, and thus the working height optimally suitable for the respective assembly step can be controlled.

[0051] The lifting mechanism 2 has an electric motor, which thus serves as an electrical consumer for the moving device 1 .

[0052] Preferably, an operator stands near the mobile device 1 laterally in the conveying direction of the mobile device 1, so that the required assembly steps can be performed. Preferably, the mobile device 1 is also designed to be accessible to the operator. However, since the mobile device 1 can be rotated 90° at the corresponding track position, only the processing work of the assembly steps performed on the front or rear of the object in the conveying direction can be performed simply and quickly. For this purpose, a rotating table is arranged along the conveying section, which is realized by rollers placed on the base surface of the conveying section at intervals in such a way that the mobile device 1 can be rotated 90° during the movement through the rotating table, in particular wherein the rotation axis is parallel to the normal direction of the base surface.

[0053] In particular, the conveying system has a fixed rotary table which enables the individual moving devices 1 respectively received by the rotary table to be rotated about a vertical axis when traveling past.

[0054] Then, the mobile device 1 rotated by 90° is further transported along the transport track of the transport system. Therefore, it is possible to process the side surface of the mobile device 1 which was previously difficult to process.

[0055] One or more electrical consumers of each mobile device 1 are powered by inductive coupling. For this purpose, each mobile device 1 has a secondary coil 20 on its underside. The secondary coil is inductively coupled or can be inductively coupled to a primary conductor that is laid on or in the base surface of the conveyor system along the conveyor track along which the mobile device 1 moves.

[0056] The primary conductors are acted upon by an alternating current, so that the electrical consumers of the respective mobile device 1 are supplied by the voltage induced in the respective secondary coil.

[0057] The capacitor is connected in series or in parallel with the secondary coil, and the parameters of the capacitor are determined so that the resonant frequency of the oscillating circuit formed by the capacitor and the secondary coil is equal to the frequency of the alternating current. In this way, high efficiency can be achieved even if the inductive coupling strength is weak.

[0058] The secondary coil is wound around the ferrite core or is arranged on the ferrite core, in particular as a flat coil or a flat coil.

[0059] The ferrite core has an E-shaped or U-shaped cross section, wherein the legs of the E-shape or U-shape lie in a single plane, the normal direction of which is parallel to the travel direction, in particular the conveying direction, of the mobile device 1. In particular, the legs of the ferrite core, in particular the vertical projection of the legs in the plane, form the plane.

[0060] In particular, the normal direction of the plane is parallel to the base plane of the conveying section.

[0061] Preferably, the movement device 1 with the ferrite core is oriented such that the primary conductor is arranged between the legs of the imaginary extension of the E-shape or U-shape.

[0062] The primary conductor arranged in the base plane is therefore located between the legs of the E-shape or U-shape which are projected perpendicularly into the base plane.

[0063] When the mobile device 1 is rotated by 90°, no voltage is induced in the secondary coil wound around the ferrite core or in the secondary coil arranged on the ferrite core. Therefore, a further secondary coil with a further ferrite core is arranged on the bottom side of the mobile device, which further secondary coil with a further ferrite core is identical in structure, in particular identical, to the aforementioned secondary coil with a ferrite core, but is likewise arranged on the bottom side of the mobile device 1 in a manner rotated by 90°. Therefore, in each of the two rotational positions of the mobile device 1 relative to the primary conductor, the electrical load of the mobile device can be supplied inductively via at least one corresponding secondary coil.

[0064] Therefore, in order to be able to transmit higher power, not only the above-mentioned two secondary coils but also a greater number of secondary coils are fixed to the bottom side of the mobile device 1 .

[0065] Therefore, a plurality of first secondary coils and a plurality of second secondary coils are fixed on the bottom side of the mobile device 1, wherein, on the one hand, the first secondary coils are designed to be structurally identical to each other, in particular, identical to each other and parallel to each other, and on the other hand, the second secondary coils are designed to be structurally identical to each other, in particular, identical to each other and parallel to each other, but the second secondary coils are respectively rotated 90° relative to the first secondary coils. Preferably, the first secondary coils and the second secondary coils are structurally identical to each other, in particular, identical to each other.

[0066] The first secondary coil is arranged along a first line, in particular, along a first straight line. The second secondary coil is arranged along a second line, in particular, along a second straight line. The first line intersects the second line and is perpendicular to each other.

[0067] Preferably, the first line is arranged centrally relative to the mobile device 1, in particular with reference to the travel path. Thus, the vertical projection of the first line into the base surface of the travel path intersects with or contains the vertical projection of the center of gravity of the mobile device 1. The first line is therefore parallel to the direction of travel; before reaching the rotary table, the mobile device 1 is oriented such that the first line is oriented in the direction of travel. After driving over the rotary table and thus performing a 90° turn, the first line is perpendicular to the direction of travel and the second line is parallel to the direction of travel.

[0068] Preferably, the second line is arranged centrally on the mobile device 1 .

[0069] Alternatively, the two lines are arranged eccentrically, that is, at a certain distance from the center position, so that in a first rotational position, the electrical consumers of the mobile device are powered via the first secondary coil, and in a rotational position rotated by 90° relative to the first rotational position, the electrical consumers of the mobile device are powered via the second secondary coil.

[0070] In another embodiment of the present invention, each mobile device 1 has a power device, which is preferably designed as an electric drive device. In a further development, the mobile devices 1 are each designed to have their own controller for regulating the power device.

[0071] In a further embodiment of the invention, a sufficiently large walkable area for the operator is provided on the mobile device so that the operator can walk around the lifting mechanism 2. This area is parallel to the base surface of the conveying section.

[0072] In a further embodiment according to the invention, the moving device 1 is designed with its own drive unit, which drives drive wheels rolling on the base surface of the conveyor section and therefore does not require a roller conveyor belt.

[0073] Preferably, the corresponding power device is supported in a rotatable manner and can therefore be rotated by 90°, or the power device is designed as a track drive (panzerantrieb) or has two drive wheels that can be rotated in different ways and are coaxial to each other, and the drive wheels can be driven separately. Instead of a rotating table, the rotation of the mobile device 1 is achieved by driving the mobile device.

Claims

1. A conveying system having a plurality of moving devices for transporting objects along a conveying section, Each mobile device has at least one electrical consumer. Each mobile device is supplied with electric power inductively by a fixedly arranged primary conductor to which an alternating current is applied and which is laid along the transmission line. On the side of the mobile device facing the primary conductor, the secondary coil is fixed on the chassis of the mobile device in a non-rotatable manner, and the secondary coil is inductively coupled to the primary conductor. It is characterized in that The one or more first secondary coils are oriented perpendicular to the one or more second secondary coils.

2. A conveying system according to claim 1 having a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The side of the mobile device facing the primary conductor is the bottom side of the mobile device.

3. The conveying system according to claim 1 having a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The rotation axis of the first secondary coil rotated 90° relative to the second secondary coil is parallel to the normal direction of the base surface of the conveying section.

4. A conveying system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The mobile device is powered via the one or more first secondary coils in a first orientation and powered via the one or more second secondary coils in a second orientation.

5. A conveying system according to claim 4 having a plurality of moving devices for transporting objects along a conveying section, It is characterized in that In the second orientation, the displacement device is rotated by a non-zero angle about an axis of rotation parallel to a normal direction of the planar base surface of the conveying section.

6. A conveying system according to claim 5 having a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The non-zero angle is 90°.

7. A conveying system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The one or more first secondary coils are designed to have the same structure as the one or more second secondary coils, but are arranged relative to each other to be rotated by 90° around a rotation axis parallel to the normal direction of the base surface of the conveyor section.

8. A conveying system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that Each secondary coil is connected in series or in parallel with a capacitor, so that the resonance frequency of the oscillating circuit formed thereby is the same as the frequency of the alternating current applied to the primary conductor.

9. A conveying system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The first secondary coil is arranged along a first straight line, The second secondary coil is arranged along a second straight line.

10. The conveying system according to claim 9, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The first straight line is perpendicular to the second straight line, and / or the first straight line and the second straight line form a plane parallel to a base surface of the conveying section.

11. The conveying system according to claim 9, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The first straight line intersects the center of gravity of the chassis of the mobile device or the center of gravity of the mobile device.

12. A conveyor system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveyor section, It is characterized in that The distances between the base surface of the conveying section and the respective first secondary coil or second secondary coil are respectively of the same value.

13. A conveying system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The conveying system has a roller conveyor belt on which the moving device is placed and by which the moving device can be conveyed along the conveying path. The moving device has a plate-like base member placed on the rollers of the roller conveyor belt, The conveyor system has lateral guides or lateral boundaries for the moving device, so that lateral drifting of the moving device can be prevented.

14. A conveyor system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveyor section, It is characterized in that Each mobile device has a lifting mechanism, which has a motor, which acts as an electrical consumer for the mobile device. Depending on the position of the mobile device along the travel section, the vertical height of the object received on the lifting mechanism has different values, and the object is received in the mobile device at different heights at different section positions.

15. A conveying system according to claim 14 having a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The lifting mechanism is a workbench with adjustable height.

16. A conveyor system according to any one of claims 1 to 3, comprising a plurality of moving devices for transporting objects along a conveyor section, It is characterized in that The conveying system has a rotating table placed on the base surface in the conveying section, which rotates the moving device by a non-zero angle about a rotation axis parallel to the normal direction of the flat base surface when passing over the rotating table.

17. A conveying system according to claim 16 having a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The non-zero angle is 90°.

18. The conveying system according to claim 14, comprising a plurality of moving devices for transporting objects along a conveying section, It is characterized in that The lifting mechanism lifts the received object to a first vertical position when powered by the first secondary coil, and lifts the received object to a second vertical position when powered by the second secondary coil. The height of the object is thus made dependent on the orientation of the mobile device.

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