EP2886414B1 - Transport device for wheel sets and bogies - Google Patents

Description

The invention relates to a transport device for wheelsets and bogies and a transport unit for this transport device.

According to [1], DE29503603U1 , Overhaul or replacement of the bogies and the drive motors and other components are often required in maintenance, overhaul and repair of rail vehicles. For this purpose, the bogies are dismantled, driven to a place of work, repaired, returned and then reassembled.

The geometry of a railway wheel and damage that may occur and may require the repair of a wheel set, for example, from [2], DE19834587C1 , known. A railway wheel comprises a wheel hub, a wheel disc, and on the outer circumference of a wheel rim with a tread and a flange, which is arranged on one side of the tread and this projects radially.

From [3], DE4405279C1 , An apparatus and method for exchanging bogies on rail vehicles are known. In this method, a truck moves in a tunnel on a track under a bogie to be replaced. As a result, a provided on the pallet Spindelhubtisch is raised to support a track bridge, which is unlocked in the sequence and lowered with the bogie released from the rail vehicle. With the truck, the bogie is driven via tracks and one or more turntables to a delivery point where the bogie is removed from the track bridge. This method therefore requires a complex and expensive infrastructure. Changes in the infrastructure, eg with the postponement of jobs, are therefore hardly or only with great effort feasible. If necessary, new rails have to be laid and expensive turntables have to be repositioned.

To avoid this expense, therefore, a lifting system for bogies is proposed in [1], which can be moved outside of rails on the floor of a workshop. The mobile lifting system consists of a carriage with a lifting mechanism arranged thereon with liftable and lowerable wheel support members, which serve to accommodate a bogie. The lifting system can be driven under a bogie, after which the lifting mechanism is driven with the wheel support members up to pick up the bogie and drive down. As a result, the dismantled bogie can be driven over the floor of the workshop on any path to the workplace.

This mobile lifting system still requires a complex infrastructure, which allows to drive under a bogie of a railway car in order to disassemble this. Furthermore, a complex lifting device is required, which takes up a lot of space.

A device for the transport of wheelsets is from [4], US6742232B2 , known. This transport device comprises a lift truck with a coupling device by means of which the lift truck can be coupled to one of the wheels of a wheelset. After coupling the wheel, the entire wheel set can be raised. The fork of the lift truck rests against the running surfaces of the coupled wheel and can cause damage to it. To manipulate the far beyond the fork of the lift truck extending wheelset very much space is required. Furthermore, occurring loads and moments are to be considered. If a rail vehicle is next to the transportable Bogie stands, this device can not be used.

The present invention is therefore an object of the invention to provide an improved transport device for wheelsets and bogies that can be moved outside of tracks.

In particular, a transport device is to provide, which is advantageously used and does not require a complex infrastructure to accommodate bogies from a track or settle in it. Furthermore, a transport unit for this transport device to create.

By means of the transport device wheel sets or bogies and preferably entire rail vehicles are detected with relatively little time, raised and can be transported away over the floor of a workshop. The use of the transport device should also be possible if hardly any free space is available in addition to the bogie to be transported.

The process of coupling to a wheel or to a bogie should be able to be performed at least semi-automatically.

The transport device should be simple and inexpensive and need virtually no maintenance.

Expensive and voluminous lifting devices should be avoided, so that the transport device for storage takes up little space. Inventive transport devices should therefore be stored and transported with little space requirement. Furthermore, inventive transport devices should have only a low weight.

The transport device according to the invention should also serve as a measuring scale in preferred embodiments.

This object is achieved with a transport device and a transport unit, which has the features specified in claim 1 or 16 features. Advantageous embodiments of the invention are specified in further claims.

The transport device, which serves the non-rail transport of a two-wheel set, a wheeled bogie, or a rail vehicle, comprises a caddy, which is movable by means of at least one running unit on a floor and which has at least one lifting device, by means of at least one of the wheels of the wheelset or bogie can be raised and held.

According to the invention, at least one transport unit with a first wheel-holding unit and a second wheel-holding unit is provided, which is coupled with a lifting drive and is mounted axially displaceable against the first wheel-holding unit such that the wheel-holding units can be pressed against the wheel rim from two sides, preferably the wheel rim, of the wheel. so that the wheel can be lifted upwards.

The inventive transport device is modular and has at least one transport unit, which can be coupled to a wheel of a wheelset. To transport a wheelset, therefore, two transport units are preferably provided by means of which both wheels of a wheelset can be detected and lifted. For the transport of a bogie with two sets of wheels therefore four transport units are coupled to the wheels.

The lifting device with the mutually displaceable Radhalteeinheiten allows a wheel of a wheel by to detect and vertically lift a horizontal displacement of at least one of the wheel support units from both sides. The wheel holding units also allow to detect the wheel flange of the wheel so that the tread is not contacted and therefore can not be damaged.

It is particularly advantageous that the wheel or the bogie can be removed directly from rails that are embedded in the floor of a workshop. When using the inventive transport device can therefore be dispensed with a complex infrastructure, for example, has a tunnel within which a lifting device is driven under a bogie. Since the wheelset or the bogie can be removed directly from the rails, as they are usually provided in workshops, also results in the advantage that provided on each transport unit lifting device must overcome only a small stroke and therefore regardless of their specific design with relatively low Dimensions can be realized. By converting the horizontal movement of the wheel holding units in a vertical movement of the held wheel results in a particularly low overall height of the transport units, resulting in many advantages. The transport units can be manufactured easily, inexpensively and with little weight, as well as stored space-saving and flexibly. The transport units can be driven under a rail vehicle and have a large distance below the rail vehicle to the substructure of the rail vehicle. The transport units are therefore easily visible and advantageous manipulated. The track laterally of the rails on which the bogie rests, may have a minimum width of, for example, half a meter, so that the transport units are universally applicable.

The two wheel holding units preferably have inclined support surfaces, which are preferably aligned approximately tangentially to the wheel rim of the wheels of the rail vehicle in the region of the engagement. In this way, a wheel, preferably the wheel flange, of the wheel holding units, which together form a V-shape, can be grasped and lifted from two sides. Preferably, the wheel holding units have at least one vertically oriented locking plate, which ensures that the wheel flange can not escape laterally from the wings. So that the two wheel holding units can be pushed against one another without friction occurring on the wheel, preferably at least one of the wheel holding units is provided with running elements, such as treadmills, tracks, sliding elements and / or rolling elements, preferably a roller circulation unit.

Roller circulating units that can run around a wheel holding unit are known e.g. in the company publication of Schaeffler KG, 66424 Homburg / Saar, Germany, dated August 2007. On the other hand, the person skilled in the art can also use any other bearing devices, in particular roller bearings, which make it possible to carry and displace high loads without friction.

Each of the transport units has a transport frame, which is preferably provided with at least one guide rail, along which at least the first wheel holding unit is displaceably mounted. Preferably, at least the first wheel holding unit is connected via a support arm with the guide rail. So that torques acting on the support arm can be absorbed, it is preferably held by at least two guide rails. In a preferred embodiment, the support arm has a first recess for the implementation of the drive spindle and more Recesses that are positively adapted to the associated guide rails. The support arm is therefore positively held by preferably two guide rails slidably and preferably aligned perpendicular to the guide rails. Blocking the support arm during its displacement along the guide rails is therefore avoided even under high load. By means of the lifting device therefore very high loads can be raised and carried. With appropriate dimensioning, it is also possible to lift bogies together with the rail vehicle from a first pair of rails to settle within a workshop for procedures and elsewhere on a second pair of rails.

For the method of transport units, the transport racks are preferably provided with running units at both ends. The two wheel holding units are preferably arranged along the common axis of gravity of the two running units, so that a uniform load distribution is achieved and resulting torques compensate each other.

The two running units preferably each have a drive body which is provided with running elements. The running elements are preferably arranged such that they can lie or roll at least approximately on a plane parallel to the ground. Preferably, each drive has a plurality of running elements, such as wheels or rollers, on which the load can be divided. In this way, the load on the individual running elements, but also the load on the floor of the workshop reduced. Moldings in the floor of the workshop, which could hinder the journey of the transport units, are avoided.

In preferred embodiments, cylindrical rollers are provided as running elements, so that the load can be transmitted to the floor of the workshop over a relatively large contact area. For example, For example, cylindrical rollers having a length of, for example, 25cm to 50cm are used so that openings in the floor of the workshop, e.g. also sunken rails, can be run over easily.

In a particularly preferred embodiment, preferably both drive bodies are rotatably mounted in the running units. In this embodiment, the drive bodies can preferably be rotated in any direction, which is why the transport unit can be driven in any direction from the present location. While driving the direction of travel can be changed by appropriate rotation of the drives either.

The drive body are held by means of bearing units, which are preferably designed as a ring bearing or pivot bearing. For example, the storage unit comprises a disc-shaped rotating ring connected to the drive body, which is rotatably mounted on a bearing ring connected to the transport frame. The rotary ring preferably has an outer toothing, in which a gear can engage, which is coupled to a rotary drive. The rotary ring and the bearing ring may form a plain bearing or may be separated by rolling bearing elements.

Preferably, the drive body comprise a wheel well, in which the running elements are mounted by means of bearing shafts or bearing axles.

Preferably, at least the first or the second running unit has a running drive, which is coupled to the running elements of the first and / or the second running unit. In preferred embodiments are both running units with a running drive understand. The transport units can therefore be driven by an electric motor within the factory floor procedure. The bearing units can also be constructed identically or mirror-symmetrically.

In further preferred embodiments, the transport units are provided with local control units, which make it possible to operate the transport units remotely and / or automatically or semi-automatically. Preferably, the local control units with sensors, preferably optical sensors, optionally connected to a camera, by means of which the position of the transport units relative to a wheel can be determined. Based on the position data, the running units, ie the rotary drive and the running drive of each running unit can be controlled such that the transport unit can be automatically moved to the coupling position. Preferably or alternatively, sensors are provided by means of which the position of the railroad track can be determined so that the transport unit can be moved into a defined position relative to the railroad track. As a result, the wheel can be automatically detected and raised by mutual displacement of the wheel holding units.

Individual functional sequences, such as the coupling to a wheel, are preferably hard-coded, so that they can run automatically.

In preferred embodiments, the local control units are preferably connected via a radio interface with a central control unit, which can preferably synchronize at least some of the functions of the transport units, so that two, four or even eight transport units can be controlled synchronously. The Central control unit or the local control units can preferably control the rotary actuators, the running drives and the lifting drives.

Any data can be transferred between the local control units and the central control unit. Preferably, for example, by means of strain gauges in the transport units, the load of the drive spindle to be measured, which is proportional to the load. In preferred embodiments, the transport units can therefore advantageously serve as measuring scales. The load data determined by the individual transport units are preferably collected in the central control unit, added up and made available to the user.

In further preferred embodiments, the transport units are further provided with rechargeable batteries, which provide the electrical energy required by the drive units, the control unit and the radio unit. The transport device with the transport units can therefore be operated autonomously.

Fig. 1

eine erfindungsgemässe Transportvorrichtung 100 mit vier Transporteinheiten 1A, 1B, 1C und 1D, die an die Räder 9 von zwei Radsätzen 90 eines Drehgestells 900 angekoppelt sind;

Fig. 2

eine erfindungsgemässe Transportvorrichtung 100 mit zwei Transporteinheiten 1A und 1B, die derart an die Räder 9 eines Radsatzes 90 angekoppelt sind, dass deren Längsachsen x parallel zum zugehörigen Rad 9 ausgerichtet sind;

Fig. 3a

eine der Transporteinheiten 1 von Fig. 1 oder Fig. 2 von oben gezeigt;

Fig. 3b

die Transporteinheit 1 von Fig. 3a von unten gezeigt;

Fig. 4a

die Transporteinheit 1 von Fig. 3a mit zwei Laufeinheiten 11, 12 mit in Lagereinheiten 110, 120 drehbar gelagerten Laufwerken 112, 122, die derart ausgerichtet sind, dass die Transporteinheit 1 senkrecht zu seiner Längsachse fahren und mit den beiden Radhalteeinheiten 14, 15 ein Rad 9 erfassen kann;

Fig. 4b

die Transporteinheit 1 von Fig. 4a mit den Laufwerken 112, 122 in Laufrichtung parallel zur Längsachse ausgerichtet und mit gegeneinander gefahrenen Radhalteeinheiten 14, 15, mittels denen ein schematisch gezeigtes Rad 9 erfasst abgehoben wurde;

Fig. 5a

die Transporteinheit 1 von Fig. 4a mit einem in einer Schiene (nicht gezeigt) gehaltenen Rad 9;

Fig. 5b

die Transporteinheit 1 von Fig. 5a mit dem aus der Schiene (nicht gezeigt) abgehobenen Rad 9;

Fig. 6a

die Transporteinheit 1 mit dem in der Schiene 50 gehaltenen Rad 9 von Fig. 5a in einer Schnittdarstellung entlang der in Fig. 2 eingezeichneten Schnittlinie A--A;

Fig. 6b

die Transporteinheit 1 von Fig. 6a mit dem aus der Schiene 50 angehobenen Rad 9.

Fig. 7a

die Transporteinheiten 1A, 1B von Figur 1, die durch zwei Verbindungsvorrichtungen 161, 162 miteinander verbunden und wahlweise gegeneinander verschiebbar sind; und

Fig. 7b

die beiden gegeneinander verschobenen Transporteinheiten 1A, 1B von Figur 7a.

The invention will be explained in more detail with reference to drawings. Showing:

Fig. 1

an inventive transport device 100 with four transport units 1A, 1B, 1C and 1D, which are coupled to the wheels 9 of two sets of wheels 90 of a bogie 900;

Fig. 2

an inventive transport device 100 with two transport units 1A and 1B, which are coupled to the wheels 9 of a wheel set 90, that their longitudinal axes x are aligned parallel to the associated wheel 9;

Fig. 3a

one of the transport units 1 of Fig. 1 or Fig. 2 shown from above;

Fig. 3b

the transport unit 1 of Fig. 3a shown from below;

Fig. 4a

the transport unit 1 of Fig. 3a with two running units 11, 12 with rotatably mounted in bearing units 110, 120 drives 112, 122, which are aligned such that the transport unit 1 run perpendicular to its longitudinal axis and with the two wheel holding units 14, 15 can detect a wheel 9;

Fig. 4b

the transport unit 1 of Fig. 4a aligned with the drives 112, 122 in the direction parallel to the longitudinal axis and against each other driven wheel holding units 14, 15, by means of which a schematically shown wheel 9 has been detected lifted;

Fig. 5a

the transport unit 1 of Fig. 4a with a wheel 9 held in a rail (not shown);

Fig. 5b

the transport unit 1 of Fig. 5a with the wheel 9 lifted off the rail (not shown);

Fig. 6a

the transport unit 1 with the wheel 50 held in the rail 9 of FIG Fig. 5a in a sectional view along the in Fig. 2 drawn section line A - A;

Fig. 6b

the transport unit 1 of Fig. 6a with the raised from the rail 50 wheel 9th

Fig. 7a

the transport units 1A, 1B of FIG. 1 through two connecting devices 161, 162 with each other connected and optionally mutually displaceable; and

Fig. 7b

the two mutually shifted transport units 1A, 1B of Figure 7a ,

Fig. 1 shows a transport device 100 according to the invention with four transport units 1A, 1B, 1C and 1D, which are coupled to the wheels 9 of two wheelsets 90 of a bogie 900.

The bogie 900 has been decoupled from the rails, so that it can now be moved on the basis of the transport device 100 and the four transport units 1A, 1B, 1C and 1D of the transport device 100 on the floor 5 of a workshop.

For the purpose of the method of the transport device 100, in this preferred embodiment, a central control unit 60 is provided by means of which data can be transferred to local control units in order to synchronously control the transport units 1A, 1B, 1C and 1D (see Fig. 3a ).

Fig. 2 shows a transport device 100 according to the invention with two transport units 1A and 1B, which are coupled to the wheels 9 of a wheelset 90, that their longitudinal axes x are aligned parallel to the associated wheel 9.

The wheel set 90 shown has a wheel axle 95 with two wheels 9, whose wheel rim 91 has a running surface 911 and a wheel flange 912 which stands on the associated transport unit 1A, 1B.

Fig. 2 shows further that the transport units 1A, 1B each have a first running unit 11 with first rollers 114 and a second running unit with second rollers 124.

The bogie 90 of Fig. 1 and the wheelset 90 of Fig. 2 can therefore be lifted on the basis of the coupled transport units 1 optionally from railroad tracks, moved across the floor of a workshop and placed elsewhere in railroad tracks again. Out Fig. 1 and Fig. 2 It can be seen that the transport units 1 have a very low height and thus take up little space. The transport units 1 can therefore also be used when the bogie to be transported stands between two pairs of tracks on which railway carriages are located. Furthermore, the transport units 1 can also be easily mounted if the bogie 900 is not yet decoupled from the rail vehicle. Transport units 1 can even be mounted on two bogies of a rail vehicle in order to lift it from the rails and drive it over the floor of the workshop. The transport device 100 with the transport units 1 also requires no special infrastructure, but only the floor 5 of the factory, over which the transport units 1 are driven to the tracks. The measures provided for the transport units 1 lifting devices are designed such that the wheels 9 can be decoupled from the tracks. The corresponding stroke corresponds to the height of the flange and is relatively low. It will be described below that the lifting operation is carried out by a horizontal displacement of device parts of the transport units, which is why the height of the transport units does not change even when the lifting device is actuated. The height of the transport units 1 can therefore, as shown, be reduced to approximately the height of the rollers 114, 124.

Fig. 3a shows one of the transport units 1 of Fig. 1 or Fig. 2 from above. Fig. 3b shows the transport unit 1 of Fig. 3a from underneath.

The transport unit 1 shown comprises a transport frame 10, which on one side holds a first running unit 11 and on the other side a second running unit 12. Furthermore, the transport frame 10 comprises a first guide rail 101 and a second guide rail 102, by means of which a perpendicular thereto aligned support arm 134 is slidably held. On the caddy 10 is further a lifting drive 131, preferably an electric motor, is provided, which drives a drive spindle 132 which is aligned parallel to the guide rails 101, 102 and which engages in a spindle bearing 133 which is connected to the support arm 134. In the embodiment shown, the support arm 134 has a mounting opening 1342 into which the spindle bearing 133 is inserted and through which the drive spindle 132 is guided. By rotation of the drive spindle 132, the support arm 134 can therefore be moved back and forth along the guide rails 101, 102.

The support arm 134 is further connected to a first wheel holding unit 14, which is axially displaceable with the support arm 134 against a second wheel holding unit 15, which is fixedly connected to the transport frame 10. The two wheel holding units 14, 15 have bearing surfaces 141, 151 which are inclined relative to one another such that, after the two wheel holding units 14, 15 are pushed together, they rest approximately tangentially on the flange 912 of the held wheel 9. Laterally, the wheel holding units 14, 15 are provided with locking plates 142, 152, which ensure that the held wheel 9 can not escape laterally from the wings 141, 151. In preferred embodiments, both sides of the wings 141, 151 each have a locking plate 142, 152 are provided.

When the two wheel holding units 14, 15 move together, they therefore become approximately tangential to the wheel flange 912 of the wheel 9 applied, so that the wheel 9 is displaced or displaced vertically upward on further pushing the wheel holding units 14, 15, as will be shown below.

The two running units 11 and 12 are formed differently in this embodiment. The first running unit 11 is designed as a guide unit and comprises a first bearing unit 110 which rotatably supports a first drive body 112. The bearing units 110 are preferably designed as a ring bearing or pivot bearing. For example, the storage unit 110 comprises a disk-shaped rotary ring connected to the drive body 112 and rotatably mounted on a bearing ring connected to the transport rack 10. The rotary ring has an outer toothing, in which a schematically shown gear 1110 can engage, which is coupled to a rotary drive 111. The drive body 112 can be rotated by means of the rotary drive 111, preferably by 180 ° or 360 °.

In the illustrated embodiment, the first drive body 112 includes a wheel well 1121 in which three idlers 114 are rotatably mounted and interconnected via gears 115 and to a runner 113, e.g. an electric motor, are coupled. By operating the runner 113, therefore, all the rollers 114 can be preferably rotated in one direction or the other. By rotation of the drive body 112 and activation of the running drive 113, the first running unit 11 can therefore be driven in any direction.

The second running unit 12 is preferably constructed identically to the first running unit 11. In the present embodiment, however, the second running unit 12 is configured as a following unit, which comprises a second bearing unit 120, by means of which a second drive body 122 is rotatable is held. In the second drive body 122, four rollers 124 are rotatably mounted. The rollers 124 are coupled together by gears and may also be driven by a running drive, if desired. The second drive 122 can rotate automatically. However, it may also be connected to a rotary drive if so desired.

Fig. 3a also shows that the transport unit 1 is provided with a control unit 6, a radio unit 7 and with accumulators 8, which allow the transport unit 1 to operate autonomously. Furthermore, if necessary, sensors and actuators and / or switches are provided to detect measured variables and to operate the transport unit 1. In preferred embodiments, the transport units 1 extendable spacer elements, such as extendable pistons, which indicate when contacting a wheel 9, that the coupling position has been reached.

Fig. 4a shows the transport unit 1 of Fig. 3a with such aligned drives 112, 122, that the transport unit 1 can drive perpendicular to its longitudinal axis. The two wheel holding units 14, 15 were moved apart for receiving a wheel 9. The transport unit 1 can therefore be moved against a held in a rail wheel 9, wherein the two wheel holding units 14, 15 are driven over the flange 912 of the wheel 9 addition. Subsequently, the wheel holding units 14, 15 are driven against the flange 912.

Fig. 4b shows the transport unit 1 of Fig. 4a after a wheel 9 on the flange 912 has been detected and raised. For this purpose, the support arm 134 was moved with the first wheel holding unit 14 against the second wheel holding unit 15. Symbolically, the wheel flange 912 of the wheel 9 is shown by a broken line.

After lifting the bogie 900 this was first driven perpendicular to the rail to a driveway on the floor of the workshop. Subsequently, the two drives 112, 122 were rotated by 90 ° and aligned parallel to the road along which the held bogie 900 or the held wheelset 90 can now be removed.

Fig. 5a shows the transport unit 1 of Fig. 4a with a wheel 9 held in a rail (not shown), past which the two wheel holding units 14, 15 are guided.

Fig. 5b shows the transport unit 1 of Fig. 5a with the wheel 9 lifted off the rail (not shown) and the rotated drives 11 and 12.

Fig. 6a shows the transport unit 1 with the wheel 9 of Fig. 5a in a sectional view along the in Fig. 2 drawn section line AA. The wheel 9 is held in a rail 50, which is sunk into the floor 5 of the workshop. The flange 912 engages the rail 50 a.

Fig. 6a shows further that the wheel holding units 14, 15 are provided with bearing elements 143 and 153, on which the flange 912 is placed. Preferably, the bearing elements 143 and 153 are cylindrical rollers which, when the wheel holding units 14, 15 are displaced, can rotate around them. As mentioned, such roller circulation units are suitable for supporting and mutual displacement of high loads. The two wheel holding units 14, 15 can therefore be displaced without friction against the wheel 9 based thereon. The wheel 9 raised from the rail 50 may even be rotated to inspect the running surfaces 911. The expert can of course also use other bearing elements, which serve the same purpose.

Fig. 6b shows the transport unit 1 of Fig. 5a with the raised wheel 9 and the rotated drives 112, 122. The Figures 6a and 6b show that only a small lifting height is required, which can be easily overcome with a horizontal displacement of the support arm 134.

In the Figures 6a and 6b Furthermore, the bearing axles 1141, 1241 of the roller-shaped or roller-shaped running elements 114, 115 are shown.

The FIGS. 7a and 7b show the two transport units 1A and 1B in a preferred embodiment in which they are connected by two connecting devices 161, 162 with each other. The connecting devices 161, 162 comprise telescopically telescoping elements, of which preferably at least one pneumatic, hydraulic, electric drive unit or by means of a mechanical lever mechanism can be driven to move the connecting devices 161, 162 against each other or apart and adapt to the track width of the tracks or to make the wheel sets. For example, each of the connection devices 161, 162 includes a spindle connected to an electric motor, which is held by the connection device 161 of the first transport unit 1A and which engages in a thread in the connection device 162 of the second transport unit 1B. By executing a number of rotations of the spindles, a desired distance between the transport units 1A and 1B can be adjusted. By sensors, the distance can be measured, after which the control of the spindles takes place in dependence of the determined measured values.

Parallel to the mechanical connection of the two transport units 1A and 1B is preferably also an electrical connection, so that, for example, one of the two Transport units 1A or 1B can serve as a higher-level control unit and / or as a power supply unit. Control technology, one of the transport units 1A, 1B act as a master and the other as a slave. Both transport units 1A, 1B can thus be controlled synchronously by radio.

For the connection of the two transport units 1A and 1B, only a correspondingly dimensioned connecting device with only one drive device can be used.

In a further preferred embodiment, two pairs of transport units 1A, 1B and 1C, 1D interconnected by connecting devices 161, 162 are interconnected by a central connecting device so that the transport units 1A, 1B and 1C, 1D of FIG FIG. 1 be grouped together in a unit that is particularly easy to control. Also in this case, an electrical connection is preferably provided parallel to the mechanical connection, via which control signals can be transmitted and / or a power supply can take place.

LIST OF REFERENCE NUMBERS

1, 1A, ..., 1D

transport units

10

Caddy

100

transport device

101

first guide rail

102

second guide rail

11

first running unit

110

first storage unit

111

rotary drive

1110

rotary gear

112

first drive body

113

run drive

114

first running elements

1141

bearing axles

115

first gearbox

12

second running unit

120

second storage unit

122

second drive body

124

second running elements

125

second running gear

1241

second bearing axes

131

Linear actuator

132

drive spindle

133

spindle bearings

134

support arm

1341

Recess for the first guide rail

1342

Recess for the drive spindle

1343

Recesses for the second guide rail

14, 15

lifting device

14

second wheel holding unit

141

first wing

142

first backup plate

143

first bearing elements

15

first wheel holding unit

151

second wing

152

second backup plate

153

second bearing elements

161, 162

Connecting devices, if necessary telescopic

5

Floor of the workshop

50

Rail in the floor 5 of the workshop

6

local control unit

60

central control unit

7

radio unit

8th

energy storage

9

wheel

90

wheelset

900

bogie

91

rim

911

tread

912

flange

95

wheel axle

Claims (16)

1. Device (100) for the non-rail-bound transport of a wheel set (90) provided with two wheels (9) or a bogie (900) provided with wheelsets (90) with a transport frame (10), which is movable by means of at least two running units (11, 12) on a floor (5) is movable and which comprises at least one lifting device (14, 15), by means of which at least one of the wheels (9) of the wheelset (90) or the bogie (900) can be lifted and held, characterized in that at least two transport units (1) with a transport frame (10) each and a first wheel holding unit (15) and a second wheel holding unit (14) are provided, that are coupled to a lifting drive (131) and axially displaceable mounted with respect to the first wheel holding unit (15) in such a way that the wheel holding units (14, 15) can be pressed from two sides against the wheel rim, preferably against the wheel flange, of the wheel (9) such that the wheel (9) can be lifted upwards.
2. Transport device (100) according to claim 1, characterized in that the first wheel holding unit (14) and/or the second wheel holding unit (15)

   a) comprise inclined support surfaces (141; 151), which are aligned in the region of engagement preferably approximately tangential to the wheel rim of the wheel (9), and/or

   b) are laterally provided with at least one preferably vertically oriented locking plate (142) which can laterally hold the wheel (9).
3. Transport device (100) according to claim 1 or 2, characterized in that the first wheel holding unit (14) and/or the second wheel holding unit (15) is provided with running elements (143, 153), such as treadmills, running tracks, sliding elements and/or rolling elements, preferably roller circulation units.
4. Transport device (100) according to claim 1, 2 or 3, characterized in that the transport frame (10) has at least one guide rail (101, 102), along which a support arm (134) is guided, which holds the second wheel holding unit (15) and which is connected via a gearbox, in particular a spindle (132) aligned parallel to the guide rail (101, 102), with the lifting drive (131).
5. Transport device (100) according to one of the claims 1 - 4, characterized in that the transport frame (10) is holding at one end a first running unit (11) and at the opposite end a second running unit (12), whose common heavy axis preferably passes through the wheel holding units (14, 15), so that a uniform load distribution occurs.
6. Transport device (100) according to claim 5, characterized in that the first running unit (11) has a first drive body (112) provided with first running elements (114) and in that the second running unit (12) has a second drive body (124) provided with second running elements (124). 122) such that the first and second running elements (114, 124), such as wheels or rollers, lie at least approximately on a plane parallel to the ground (5).
7. Transport device (100) according to claim 6, characterized in that the first drive body (112) is rotatably mounted in a first bearing unit (110) and that the second drive body (122) is rotatably mounted in a second bearing unit (120) and that at least one the running units (11, 12) has a rotary drive (111) and a rotary gear (1110), by means of which the associated drive body (112, 122) is rotatable.
8. Transport device (100) according to claim 6 or 7, characterized in that the first drive body (112) has a first wheel housing (1121), in which the first running elements (114) with first bearing shafts (1141) are held and/or that the second drive body (122) has a second wheel housing (1221), in which the second running elements (124) with second bearing axles (1241) are held.
9. Transport device (10) according to claim 8, characterized in that at least the first or second running unit (11, 12) has a running drive (113) which is coupled to the running elements (114; 124) of the first and / or second running unit (11 , 12).
10. Transport device (100) according to one of the claims 1 - 9, characterized in that two transport units (1A, 1B) for the transport of a wheelset (90) or four transport units (1A, 1B, 1C, 1D) for the transport of a bogie (900) are provided, which preferably each have an electrical energy store (8).
11. Transport device (100) according to claim 10, characterized in that each two of the transport units (1A, 1B, 1C, 1D) are interconnected by at least one connecting device (161, 162), which is preferably telescopic and provided with a drive device, wherein two transport units (1A, 1B and 1C, 1D) connected to one another are preferably connected to one another by a central connecting device.
12. Transport device (100) according to one of the claims 1 - 11, characterized in that each transport unit (1) comprises at least one local control unit (6) which controls the lifting drive (131) and/or the rotary drive (111) and/or the running drive (113) is used, and which is preferably connected via a radio unit (7) with a central control unit (60).
13. Transport device (100) according to claim 12, characterized in that by means of the central control unit (60), the local control units (6) are controllable such that functional sequences running in at least one of the transport units (1A, 1B, 1C, 1D) are synchronized with each other.
14. Transport device (100) according to claim 12 or 13, characterized in that the local control units (6) are connected to sensors, preferably optical sensors, by means of which the position of the transport units (1A, 1B, 1C, 1D) relative to a wheel (9) are determined and the transport units (1A, 1B, 1C, 1D) are automatically movable into a coupling position in which the wheel holding units (14, 15) can be coupled to one of the wheels (9).
15. Transport device (100) according to one of the claims 1 - 14, characterized in that the transport unit (1) comprises at least one sensor by means of which a measured variable is detected, which is proportional to the load acting on the transport unit (1).
16. Transport unit (1) for a transport device (100) according to one of the claims 1-15.

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