DE102011051438A1 - Deflection unit for a traction means of a lifting device and lifting device with the deflection unit - Google Patents

Abstract

The invention has for its object to provide a deflection with a sensor device for a traction means of a lifting device, which is particularly easy to integrate into the lifting device. It is also an object of the invention to propose a corresponding lifting device with the deflection unit. For this purpose, a deflection unit 7a, b is proposed for a traction means 6a, b of a lifting device 2, with a deflection roller 11 for deflecting the traction means 6a, b, with a carrying device 13, with a bearing device 15, wherein the deflection roller 11 on the bearing device 15 on the Carrying device 13 is rotatably mounted about an axis of rotation, with a signal generator 29 for generating a generator signal 32 in response to the rotational movement and / or the rotational position of the guide roller 11 relative to the support means 13, and with a sensor section 33 for outputting a sensor signal 35 based on the generator signal 32, and with a communication section 36, which is designed for the wireless transmission of a transmission signal 9 on the basis of the sensor signal 35 to an evaluation device 10.

Description

The invention relates to a deflection unit for a traction means of a lifting device, with a deflection roller for deflecting the traction means, with a support means and with a bearing device, wherein the deflection roller is rotatably mounted on the support means about a rotational axis via the bearing means, with at least one signal generator for generating a Generator signal in response to the rotational movement and / or the rotational position of the deflection roller relative to the support means, and having a sensor portion for outputting a sensor signal based on the generator signal. The invention also relates to a lifting device with this deflection unit.

Masts on forklifts are used to implement a vertical movement of piece goods and often have telescopic masts, which can be changed by means of hydraulic cylinders and chain hoists in height.

For example, the document describes DE 30 419 10 A1 a mast for a lift truck. This mast comprises three masts, of which in the extended state of the mast lowermost mast section are referred to as a mast and the other as extension masts. The masts are coupled together by chain hoists, which are deflected by rollers.

The publication EP 2105745A1 , which is probably the closest prior art, describes a measuring device that converts the relative movement between a rotatable wheel and a "cable". The measuring device comprises a rotatable cable wheel, over which the cable is guided, a ball bearing, via which the cable wheel is rotatably mounted on a stator and a sensor device, which receives the rotation of the cable wheel relative to the stator. One possible application of this measuring device is to record the vertical position of the forks of a forklift truck. The document indicates that the forklift trucks can have a lifting height of a few meters when used in a high-bay warehouse. The problem is that the forklift driver can not recognize the exact vertical position of the forks from his position on the forklift truck. The measuring device is intended to achieve an accurate measurement in order to enable the forklift driver to load or unload a load reliably in a high-bay warehouse. The sensor device is centrally located in the measuring device, wherein the measuring signals are transmitted via a data cable.

The invention has for its object to provide a deflection with a sensor device for a traction means of a lifting device, which is particularly easy to integrate into the lifting device. It is also an object of the invention to propose a corresponding lifting device with the deflection unit.

These objects are achieved by a deflection unit with the features of claim 1 and by a lifting device with the features of claim 12. Preferred or advantageous embodiments of the invention will become apparent from the dependent claims, the following description and the accompanying drawings.

In the context of the invention, a deflection unit is presented which is suitable and / or designed for deflecting a traction means of a lifting device. The lifting device is preferably a mast, as it is placed for example on a forklift.

The traction means may be formed as a cable, the usual way and preferably, however, the traction means is realized as a pull chain or as a chain hoist. The traction means can be deflected by the deflection unit by more than 90 degrees. In a preferred embodiment of the mast, the traction means can couple a mast with a load carriage or a mast with another mast, so that when the mast is extended, the load carriage or lifting mast is also extended. In particular, the coupled load carriage or the coupled lifting mast is lifted by a force transmitted via the traction means.

The deflection unit comprises a deflection roller, which is designed to support and optionally complement the guidance of the traction means. For example, the guide roller has lateral walls which guide the traction means laterally. Preferably, the deflection roller is rotationally symmetrical about an axis of rotation. Furthermore, the deflecting unit comprises a carrying device which fixes or supports the deflecting unit stationarily on the lifting device. The support means thus forms a stator and the deflection roller a rotor in the deflection unit.

The deflection roller is rotatably mounted on the support device via a bearing device about a rotation axis. In principle, it is possible that the bearing device is designed as a slide bearing, but it is preferred that the bearing device is realized as a rolling bearing. Particularly preferably, the deflection roller forms an outer ring assembly and the support means an inner ring assembly of the bearing device. In a change in the height of the lifting device, the traction means is moved over the deflection unit, thereby rotating the deflection roller.

The deflection unit further comprises a signal generator, which is designed to generate a generator signal as a function of the rotational movement and / or the rotational position of the deflection roller relative to the support device. In particular, the signal generator converts the mechanical movement between deflecting roller and carrying device into an electrical signal as a generator signal. In particular, the signal generator is designed as a converter between mechanical and electrical energy. However, in other embodiments of the invention, the signal generator may also be based on an optical, capacitive, inductive or tactile measuring principle. It is also possible for the sensor generator to generate the generator signal on the basis of at least one magnetoresistive or Hall effect-based sensor which scans magnetic fields or magnetic field changes of generator magnets during the rotational movement of the deflection roller relative to the carrying device.

The deflection unit further comprises a sensor section, which is designed to output a sensor signal on the basis of the generator signal. The generator signal can thus be referred to as a raw signal, whereas the sensor signal represents a signal derived therefrom. In particular, the sensor signal represents a rotational speed or an angular position or angle increments during the rotational movement of the deflection roller relative to the support device.

According to the invention, a communication section is proposed, which is designed for the wireless transmission of a transmission signal based on the sensor signal to an evaluation device, so that a wireless connection section between the communication section and the evaluation device is established. The communication section thus forms an interface of the deflection unit, wherein the interface is cordless, in particular shaft-supported, in particular radio-supported.

For example, it is possible for the wireless connection to be via a proprietary protocol. However, it is preferable - not least for reasons of development costs - that an already available wireless, in particular standardized transmission is used. For example, the transmission via W-LAN, blue-tooth, infrared, etc. could take place. The transmission has proved to be particularly advantageous over ZIGBEE, which forms a radio network standard. This technology makes it possible to establish a wireless connection on short distances of, for example, 10 m to 100 m.

In principle, it could be sufficient if the wireless transmission extends only in one direction, namely from the deflection unit to the evaluation device, in order to output the transmission signals to the evaluation device. However, it is preferred that the wireless transmission is bidirectional in order to be able to transmit information or data from the evaluation device or from other devices to the deflection unit. In particular, in the case of a bidirectional transmission, a reset of the deflection unit or the transmission of a reference signal can take place. Particularly preferably, the deflection unit is formed addressable, so that it can be selectively addressed.

The evaluation device can be designed, for example, to read out or to determine and display a current lifting height of the lifting device on the basis of the transmission signal. It is also possible that the evaluation device is signal-technically coupled to a plurality of deflection units of a lifting device, wherein each of the deflection units provides a transmission signal and wherein the evaluation device is designed to determine the lifting height from the plurality of transmission signals. In this embodiment, the lifting device is scalable, so that the lifting height of multi-stage lifting devices, in particular Hubmastgerüsten can be measured. In particular, the evaluation device makes it possible to detect the path (for example via an integration of the transmission signal over time), the rotational speed or the acceleration (for example via a derivative according to the time of the transmission signal) of the deflection roller and indirectly a determination of the deflection Lifting height (eg after a previous referencing to a zero position). However, the evaluation can also be carried out locally by the sensor section in the deflection unit, so that the transmission signal is e.g. already a lifting height or a travel path are transmitted as data.

The advantage of the invention lies in the fact that it is possible to dispense with sensitive data cables for the transmission of measured data from the deflection unit. Conventionally, lifting devices are used in warehouses or other logistic transshipment points and must therefore be implemented very robust. Straight data cables are particularly vulnerable in such harsh environments. Due to the design of the invention with the communication section can be completely dispensed with these sensitive data cable. Another advantage that results from the wireless transmission of the transmission signal is that the integration or assembly of the deflection is simplified in the lifting device, since the cabling in terms of data cable is eliminated. In addition, the deflection unit need not have a cable connection for a data cable, which is always a possible source of intrusion of dirt from the environment.

In a particularly preferred embodiment of the invention, the deflection unit is designed to be energy self-sufficient, so that it is also possible to dispense with power cables for supplying the deflection unit with energy.

Particularly preferably, the deflection unit has a memory section which is designed to supply the communication section and / or the sensor section with energy. The storage section may be formed, for example, as a replaceable battery, a rechargeable battery or a capacitor. In particular, the storage section is integrated in the deflection unit.

In a preferred embodiment of the invention, the deflection unit comprises a generator section, which is designed to supply the communication section and / or the sensor section with energy. The generator section may be provided as an alternative or in addition to the storage section. In the latter case, the generator section can also be designed to supply the storage section with energy. The generator section provides the energy based on the rotation of the diverting pulley about the support. Thus, the necessary energy for operating the sensor section and the communication section is generated from the functional rotational movement during normal operation of the diverter according to a generator or dynamo principle.

The deflecting unit with the self-sufficient power supply and the wireless transmission of the transmission signal is preferably designed as a ready-to-install unit, which eliminates any cabling.

It is particularly preferred if the deflection unit has a receiving space for the signal generator, the sensor section, the generator section, the communication section and optionally additionally the memory section, wherein the receiving space is integrated in the deflection unit. The advantage of this embodiment is again in a simple assembly or disassembly possibility of the deflection, since it can be replaced in its entirety, without having to invest further work for cabling. In particular, compared to conventional mechanical pulleys a space neutrality is achieved.

In a general embodiment of the invention, the receiving space can be distributed over several sections in the deflection unit. However, it is preferred that the receiving space is formed contiguous.

In a particularly preferred embodiment of the invention, the receiving space is realized as an annular space, which is arranged axially offset from the bearing device between the deflection roller and the carrying device. This positioning of the receiving space has the advantage that the carrying device may have a central opening for receiving a supporting structure of the lifting device, and said components are nevertheless accommodated in the deflecting unit in a space-saving manner. In particular, the annular space and the bearing device overlap in a projection in the axial direction to the axis of rotation.

In a preferred structural embodiment of the invention, the bearing device is designed as a single-row ball bearing. Through the use of a single-row ball bearing, the bearing device is designed to be very narrow in the axial extent, so that the annular space can be arranged adjacent to the bearing device. Particularly preferably, the single-row ball bearing is designed as a four-point bearing and / or vollkugelig, ie without a cage realized. This embodiment allows a space-saving, low-friction and at the same time well-defined guidance of the deflection roller on the support device.

In a particularly preferred structural implementation, the carrying device is designed as a support ring, which carries a raceway of the bearing device and forms a receptacle for an axle or a bolt of the lifting device. In particular, the support ring has exactly one raceway in particular for the single-row ball bearing. The receiving space is arranged adjacent to the track. Thus, the support device is realized as the inner ring assembly of the bearing device and preferably integrally formed. In particular, with a one-piece design, the receptacle for the axis or the bolt in diameter can be made particularly large, but without having to make the outer diameter of the deflection roller too large.

In a possible realization of the invention, the receiving space is sealed off from the environment by a seal between the deflection roller and the carrying device, in particular the supporting ring, in order to prevent soiling of the receiving space.

In a particularly preferred embodiment of the invention, a part of the signal generator, in particular a stator part, the sensor section, the generator section and optionally in addition the communication section is formed as a common mechatronics module, wherein the generator section provides the energy based on the generator signal of the signal generator. The signal generator thus assumes a double function by the generator signal on the one hand to derive the Sensor signal is used by the sensor section and the other to provide the power supply through the generator section. The combination of the two functions in a mechanical component allows a significant reduction of the required space for the mechatronics module.

Particularly preferably, the mechatronic assembly is designed as a ring body. In this annular body thus all of the aforementioned components are included, so that on the one hand, the space is kept very compact and on the other hand, an exchange of mechatronics assembly can be easily performed.

In a preferred constructional realization of the invention, the signal generator is designed as a claw-pole generator which comprises a series of magnets revolving around the rotation axis and a claw arrangement. Preferably, the magnet row is arranged on the deflection roller as a rotor and the jaw arrangement on the support device as a stator. In principle, however, the arrangement could also be chosen vice versa. Upon rotation of the pulley about the support means, the magnet array is rotated relative to the jaw assembly. The jaw assembly comprises two jaw carriers with jaws, the jaws being alternately arranged in the direction of rotation. As a result of the relative movement of the magnetic row and the jaw arrangement, a magnetic flux alternating in its direction is generated in the jaw arrangement. Between the jaw carriers as Flußleitblechen a revolving coil is provided, in which the changing magnetic flux induces a voltage whose magnitude and / or frequency depends on the rotational speed, and which forms the generator signal. On the one hand, the generator signal can be converted into the sensor signal by the sensor section and, on the other hand, rectified by the generator section and used as a power supply.

In a preferred development of the invention, the deflection unit has a circuit carrier, in particular an electrical circuit board, which is arranged between the jaw carriers and carries the generator section and / or the sensor section and / or the communication section and / or the memory section. Due to the integration of the circuit carrier with the mentioned sections between the jaw carriers, the mechatronic module is very compact in its external dimensions, so that it barely increases the deflection unit.

Another object of the invention relates to a lifting device, in particular designed as a material handling vehicle, in particular as a forklift, with the features of claim 12. The lifting device has at least a first Hubpartner and a second Hubpartner. It is possible that the Hubpartnern are two masts or that it is a mast and a load carriage, in particular a fork section of a forklift. The Hubpartner are coupled via one or the traction means, which transmits the lifting force for lifting the second Hubpartners and is guided over a deflection unit, as described above.

Further features, advantages and effects of the invention will become apparent from the following description of preferred embodiments of the invention. Showing:

1 a schematic block diagram of a material handling vehicle with a lifting device as a first embodiment of the invention;

2 a schematic three-dimensional representation of a deflection unit for the lifting device in the 1 as an embodiment of the invention;

3 a half-cut view of the deflection in the 2 ;

4 a schematic longitudinal sectional view along the axis of rotation of the deflection in the preceding figures;

5 a block diagram of the components in the deflection unit in the preceding figures;

6 a section of the deflection of the 2 . 3 and 4 ;

7 another section of the deflection of the 2 . 3 and 4 ;

8th a schematic longitudinal section through another deflection unit as a further embodiment of the invention.

In the 1 is a schematic representation of an industrial truck 1 with one as a mast 2 trained lifting device illustrated as an embodiment of the invention. Industrial trucks or ground-based conveyors, for example forklifts, are used for horizontal movement, lifting and stacking of piece goods 3 , Such masts 2 However, in other embodiments may also be arranged stationary or positioned on other funding.

The mast 2 includes three masts 4a , b, c, which are telescopically displaceable in the vertical direction. The mast 4a is as a stand mast and the masts 4b , c formed as traversing masts. At the mast 4a is a load carriage 5 also mounted höhenbewegbar. Lifting 4a and mast 4c are over a chain hoist 6a connected to each other, which via a deflection unit 7a on the mast 4b arranged to be deflected more than 90 degrees. A first end of the chain hoist 6a is on the mast 4a , a second end is on the mast 4c established. In or on the mast 4a is a lifting cylinder 8a arranged, which preferably hydraulically the mast 4b and thus the deflection unit 7a moves in the vertical direction. By the method of the deflection unit 7a in the vertical direction, is the mast 4c over the chain hoist 6a carried in the vertical direction.

In the mast 4c is another lifting cylinder 8b arranged, which is formed, a deflection unit 7b also to move in the vertical direction. About the deflection unit 7b is a second chain hoist 6b placed, which on the one hand to the mast 4c and on the other hand on the load carriage 5 is attached. For a vertical movement of the deflection unit 7b thus becomes the load carriage 5 move in vertical direction. In modified embodiments, the mast 2 Also have a larger number of masts, which are coupled in analog system.

The basic function of the diverters 7a , b is according to the 1 a deflection of the chain hoist 6a , b. Thus, it would be sufficient in principle that the deflection units 7a , b are formed as simple mechanical deflection rollers.

In the in the 1 shown mast 2 However, these are as "intelligent" diverting units 7a , b formed, the one during the deflection of the chain hoist 6a Detecting b detected rotational movement and a based on this rotation movement transmission signal 9 to an evaluation device 10 transfer. The evaluation device 10 is formed, the transmission signals 9 to interpret and from this a lifting height H of the load carriage 5 derive and display if necessary. It is assumed that the chain hoists 6a , b slip-free over the deflection units 7a , b. With knowledge of the structural design of the mast 2 can through the evaluation 10 the lifting height H can be determined. The transmission signals 9 do not necessarily have to be sent directly to the evaluation device 10 It is also possible that these are first introduced into a receiver, into a bus system, for example a CAN bus, or the like, and from there to the evaluation device 10 be passed on.

The transmission between the diverters 7a , b and the evaluation device 10 takes place at least in sections wirelessly, wherein the deflection units 10 each have a wireless interface. The transmission takes place via the so-called ZIGBEE standard.

The 2 shows in a schematic three-dimensional representation of the deflecting units 7a , b in an enlarged view. From this representation it can be seen that the deflection unit 7a , b a pulley 11 has which side walls 12a , b, between which the chain hoist 6a , b is guided. The pulley 11 is rotatable relative to a support ring 13 stored. The support ring 13 has a receiving opening 14 for an axle or a bolt of the lifting masts 4a , b, c on, leaving the support ring 13 stationary and stationary on the masts 4a , c can be arranged. Alternatively, the deflection 7a , b over the support ring 13 on the piston rod of the lifting cylinder, eg lifting cylinder 8b be arranged. In the in the 2 The view shown, the deflection unit shows 7a , b similar to an exclusively mechanical deflection roller, in particular, has the central receiving opening 14 a free diameter greater than 50% of the diameter of the pulley 11 in the area of the support for the chain hoist 6a , b is.

The 3 shows the deflection unit 7a , b in a schematic longitudinal sectional view. From this longitudinal sectional view it can be seen that between the deflection roller 11 and the support ring 13 a storage facility 15 is arranged. The storage facility 15 is designed as a single row ball bearing. It is a four-point bearing with the pressure lines crossed. The storage facility 15 is formed cage-free, the rolling elements 16 are arranged vollkugelig.

The outer ring 17 the storage facility 15 is as a separate component in the pulley 11 used, in particular pressed. The inner ring 18 forms together with a hub portion which the receiving opening 14 has, the one-piece support ring 13 ,

As can be seen in particular from the 4 shows that a schematic longitudinal section of the deflection 7a , b shows, points the storage facility 15 on the outer lateral surface in the outer ring 17 a circumferential groove 19 on, in which a circlip 20 is inserted. The circlip 20 is partially in a corresponding, circumferential groove 21 , on the side facing the axis of rotation in the deflection roller 11 , The pulley 11 points between the side walls 12a , b a leadership recess 22 and axially centered in the guide recess 22 a guide groove 23 on, with the guide groove 23 axially at about the height of the raceways 17 . 18 the storage facility 15 is arranged.

By using a single-row ball bearing as a storage facility 15 instead of, for example, a double-row ball bearing is between the pulley 11 and the inner ring 18 on both sides of the storage facility 15 a space 24a . 24b provided. The installation spaces 24a , b are by means of seals 25a , b sealed to the environment. In addition, in the storage facility 15 each Wälzkörperraumdichtungen 26a , b arranged so that the installation space 24a , B are axially sealed in each case sealed in both directions. The installation space 24b is in the radial direction relative to the installation space 24a enlarged and serves as a recording room 27 for a mechatronics module 28 ( 5 ), which takes over the measurement of the rotational movement and the transmission.

The 5 shows the mechatronics module 28 in a schematic block diagram illustrating the operation. A signal generator 29 has a rotor section 30 and a stator section 31 on, wherein the rotor section 30 relative to the stator section 31 upon rotation of the pulley 11 around the support ring 13 is moved. The signal generator generates by the relative movement 29 a generator signal 32 , which on the one hand to a sensor section 33 and on the other to a generator section 34 is forwarded. Although in the block diagram in the 5 a parallel distribution of the generator signal 32 to the sensor section 33 and the generator section 34 is shown, this distribution can also be serial. In the sensor section 33 becomes the generator signal 32 in a sensor signal 35 converted or further processed and sent to a communication section 36 to hand over. The communication section 36 transmits the transmission signal 9 based on the sensor signal 35 and thus based on the generator signal 32 to the evaluation device 10 ,

In the generator section 34 becomes the generator signal 32 conditioned, so that this to the power supply of the sensor section 33 and the communication section 36 can be used. Optionally, in addition, the generated energy becomes a storage section 37 charged, which as energy buffer the sensor section 33 and the communication section 36 in addition or as an alternative to the generator section 34 can supply with energy. The storage section 37 may be formed as a capacitor or as an accumulator or as a battery or a combination of these energy storage.

The 6 shows a schematic three-dimensional section of the deflection 7a , b in the area of the mechatronics module 28 , wherein radially inward of the support ring 13 and radially outward a portion of the pulley 11 is shown. On the pulley 11 is on the radial inside a series of magnets as a rotor section 30 the signal generator 29 arranged. The magnet series has a large number of magnets 38 which are arranged in the direction of rotation and alternate in polarity.

The support ring 13 is non-rotatable with the stator section 31 the signal generator 29 coupled, which is a jaw assembly 39 includes, wherein the jaw assembly 39 two claw bearers 40a , b with claws 41a , b. The claw bearer 40a , b are formed as a in a radial plane to the axis of rotation extending sheet metal, on the radial outer side of the jaws 41a , B are bent at right angles, so that they extend in the axial direction. The claws 41a , b the claw carrier 40a , B are arranged alternately in the direction of rotation and positioned contactless to each other. Between the claw bearer 40a , b is a rotating coil 42 used, which is formed in the form of an annular disc.

The signal generator 29 is structurally considered as a so-called Klauenpolgenerator formed in which on the support ring 13 the claw bearer 40a , B are formed as two axially spaced, magnetically conductive, claw-like Flußleitbleche so that upon rotation of the deflection roller 11 a magnetic flux alternating in its direction between the pulley 11 and the support ring 13 arises. In the coil 42 between the jaws 40a , b is induced by the changing, magnetic flux, a voltage whose magnitude and / or frequency depends on the rotational speed and as an electrical signal, the generator signal 32 forms. The claw bearer 40a , b and the coil 42 , In particular, ring coil, the claw pole generator are on an axially elongated portion of the bearing device 15 arranged.

The trained as an electrical signal generator signal 32 can in the sensor section 33 For example, be interpreted as incremental signal, so that by counting signal maxima in the generator signal 9 to a change in the angular position between pulley 11 and support ring 13 can be concluded. Optionally, in addition, it is also possible to have an inhomogeneity in the sequence of claws 41a b (such as omitting one of the claws 41a , b or the change of a distance of adjacent claws), so that an additional signal characteristic is output per revolution and allows an absolute determination of the position or the angle of rotation of the deflection roller to a reference position. In the generator section 34 can the generator signal 9 smoothed and as operating voltage to the signal section 33 , the communication section 36 and optionally in addition to the memory section 37 be issued.

The 7 shows in a schematic three-dimensional representation of the deflection 7a , b in a section, wherein it can be seen that in a space between the jaw carriers 40a , b for a coil 42 is used and also another space 43 with an axial extent of exemplarily 2 mm remains.

How, in particular, from the 3 results in this remaining space is a circuit carrier 44 arranged in the form of an electronic circuit board, which is designed as an annular disk and extends circumferentially, wherein on the circuit carrier of the sensor section 33 , the generator section 34 , the communication section 36 and optionally even the memory section 37 are integrated. An antenna of the communication section 36 may be integrated on the circuit carrier or in the seal 25b be arranged.

For mounting the mechatronics module 28 Thus, only the side of the signal generator 29 with the integrated circuit carrier 44 in the recording room 27 be used and then with the seal 25b be completed. After the deflection unit 7a , b is energy self-sufficient and radio-supported, is the deflection unit 7a , b realized wirelessly.

The 8th shows a modified embodiment of the invention in a schematic longitudinal section. Same or corresponding parts of the previous embodiment and the embodiment of the 8th are provided with the same reference numerals, so that reference is also made to the preceding description. In contrast to the previous embodiment, the storage facility 15 formed in this embodiment as a double-row angular contact ball bearing in O arrangement.

LIST OF REFERENCE NUMBERS

LIST OF REFERENCE NUMBERS

1

 Industrial truck

2

 mast

3

 cargo

4a, b, c

 masts

5

 load carriage

6a, b

 chain

7a, b

 Return unit

8a, b

 lifting cylinder

9

 transmission signal

10

 evaluation

11

 idler pulley

12a, b

 side walls

13

 support ring

14

 receiving opening

15

 Storage facility

16

 rolling elements

17

 outer ring

18

 inner ring

19

 groove

20

 circlip

21

 groove

22

 guide recess

23

 guide

24a, b

 space

25a, b

 seals

26a, b

 Wälzkörperraumdichtung

27

 accommodation space

28

 Mechatronics assembly

29

 signal generator

30

 rotor section

31

 stator,

32

 signal generator

33

 sensor section

34

 generator section

35

 sensor signal

36

 Communication section,

37

 storage section

38

 magnets

39

 jaw assembly

40a, b

 claw carrier

41a, b

 steal

42

 Kitchen sink

43

 space

44

 circuit support

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3041910 A1 [0003]
• EP 2105745 A1 [0004]

Claims (12)

Deflection unit ( 7a , b) for a traction device ( 6a , b) a lifting device ( 2 ), with a deflection roller ( 11 ) for deflecting the traction means ( 6a , b), with a carrying device ( 13 ), with a storage facility ( 15 ), wherein the deflection roller ( 11 ) via the storage facility ( 15 ) on the carrying device ( 13 ) is mounted rotatably about a rotation axis, with a signal generator ( 29 ) for generating a generator signal ( 32 ) in dependence of the rotational movement and / or the rotational position of the deflection roller ( 11 ) relative to the carrying device ( 13 ), and with a sensor section ( 33 ) for outputting a sensor signal ( 35 ) based on the generator signal ( 32 ), characterized by a communication section ( 36 ), which is used for the wireless transmission of a transmission signal ( 9 ) based on the sensor signal ( 35 ) to an evaluation device ( 10 ) is trained. Deflection unit ( 7a , b) according to claim 1, characterized by a memory section ( 37 ) for the supply of the communication section ( 36 ) and the sensor section ( 33 ) with energy. Deflection unit ( 7a , b) according to claim 1 or 2, characterized by a generator section ( 34 ) for the supply of the communication section ( 36 ) and the sensor section ( 33 ) and optionally in addition to the memory section ( 37 ), wherein the generator section ( 34 ) the energy based on the rotation of the pulley ( 11 ) around the carrying device ( 13 ). Deflection unit ( 7a , b) according to one of the preceding claims, characterized by a receiving space ( 27 ) for the signal generator ( 29 ), the sensor section ( 33 ), the generator section ( 34 ), the communication section ( 36 ) and / or the memory section ( 37 ), the receiving space ( 27 ) is integrated in the deflection unit. Deflection unit ( 7a , b) according to claim 4, characterized in that the receiving space ( 27 ) as an annular space axially offset from the bearing device ( 15 ) between the pulley ( 11 ) and the carrying device ( 13 ) is arranged. Deflection unit ( 7a , b) according to one of the preceding claims, characterized in that the storage device ( 15 ) is designed as a single-row ball bearing. Deflection unit ( 7a , b) according to one of the preceding claims 4 to 6, characterized in that the carrying device as a support ring ( 13 ), which has a career ( 18 ) of the storage facility ( 15 ) and a picture ( 14 ) forms for an axle or bolt, wherein the receiving space ( 27 ) adjacent to the track ( 18 ) is arranged. Deflection unit ( 7a , b) according to any one of claims 2 to 7, characterized in that a part of the signal generator ( 29 ), the sensor section ( 33 ), the generator section ( 34 ) and, optionally, the communication section ( 36 ) as a common mechatronics module ( 28 ) are formed, wherein the generator section ( 34 ) the energy based on the generator signal ( 32 ) of the signal generator ( 29 ). Deflection unit ( 7a , b) according to claim 8, characterized in that the mechatronic assembly ( 28 ) is formed as a ring body. Deflection unit ( 7a , b) according to one of the preceding claims, characterized in that the signal generator ( 29 ) is formed as Klauenpolgenerator, wherein the Klauenpolgenerator a rotating axis of rotation magnetic series ( 38 ) and a claw assembly ( 39 ), which upon rotation of the deflection roller ( 11 ) around the carrying device ( 13 ) rotate relative to each other, wherein the jaw assembly ( 39 ) two claw carriers ( 40a , b) with claws ( 41a , b) whose claws ( 41a , b) are arranged alternately in the direction of rotation at least for the most part. Deflection unit ( 7a , b) according to claim 10, characterized by a circuit carrier ( 44 ), which is between the jaw carriers ( 40a , b) is arranged and the generator section ( 34 ) and / or the sensor section ( 33 ) and / or the communication section ( 36 ) and / or the memory section ( 37 ) wearing. Lifting device ( 2 ) with at least one first hub partner ( 4a , c) and a second hub partner ( 4c . 5 ), whereby the hub partners ( 4a , c, 5 )) via a traction means ( 6a , b), the lifting force for lifting the second Hubpartners ( 4c . 5 ) and guided over a deflection unit, characterized in that the deflection unit ( 7a , b) is formed according to one of the preceding claims.

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