EP3668808A1 - Direct drive for border winder in metalworking - Google Patents
Direct drive for border winder in metalworkingInfo
- Publication number
- EP3668808A1 EP3668808A1 EP18755467.0A EP18755467A EP3668808A1 EP 3668808 A1 EP3668808 A1 EP 3668808A1 EP 18755467 A EP18755467 A EP 18755467A EP 3668808 A1 EP3668808 A1 EP 3668808A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- rotor
- winding mandrel
- winding
- winder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005555 metalworking Methods 0.000 title claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 117
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000006249 magnetic particle Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 17
- 230000009467 reduction Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/10—Mechanisms in which power is applied to web-roll spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/02—Supporting web roll
- B65H18/028—Both ends type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
- B65H2402/44—Housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/90—Machine drive
- B65H2403/92—Electric drive
- B65H2403/923—Synchronous motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/90—Machine drive
- B65H2403/94—Other features of machine drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2555/00—Actuating means
- B65H2555/20—Actuating means angular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/173—Metal
Definitions
- the invention relates to a winder in metalworking, wherein the winder comprises at least one winding mandrel for winding a strip-shaped material, preferably metal material, and a drive with an electric motor.
- winding machines are used in many places. For example, located on the inlet side of a strip processing plant a decoiler for the metal strips to be processed, while a take-up reel is provided at the outlet side. Furthermore, paper winders are used for unwinding and winding up paper liners. In the area of trimming shears, hem winder with one or two winding mandrels are used.
- DE 28 44 882 A1 describes an exemplary hem winder. The hem winder is driven by an electric motor, which cooperates via a gear and a telescopic coupling with a two-part winding mandrel.
- Hem winder are arranged for a good fillability of the so-called winding chamber advantageously below the trimming shear. This bothers in the current designs a comparatively large amount of space, caused by the complex drive train of the machine, which is composed of many moving components, such as one or more clutches, a transmission, a cardan shaft, a brake and a classic three-phase motor. A reduction of the installation space of hem winder, in particular in the longitudinal direction, ie the axial direction of the winding mandrel is therefore desirable.
- the winding mandrel In coiling machines for unwinding and winding of metal bands, the winding mandrel is driven with the interposition of a complex reduction gear, usually provided with an oil circulation lubrication.
- the conventional electric motors are mounted either on the gearbox or behind the gearbox.
- the winding mandrel is rotatably supported by rolling bearings in the housing or on the frame of the winder.
- the transmission of the torque from the drive to the winding mandrel is now carried out via one or more clutches, a drive spindle, which may be designed as a propeller shaft, a reduction gear with gears, bearings, brake means and other mechanical components.
- a drive spindle which may be designed as a propeller shaft, a reduction gear with gears, bearings, brake means and other mechanical components.
- the problem may arise that both the clutch and the transition from the transmission to the clutch and from the clutch to the rotor of the drive against torsional loads are not torsionally stiff to the desired extent. Due to the torsional compliance, the speed and the angle of rotation of the mandrel can oscillate against the drive, which can lead to problems in the control accuracy. This results in high costs and power losses in the drive train. Many moving parts must be protected by appropriate protection devices, they also lead to high maintenance and reduce reliability.
- An object of the invention is to provide a winder in metal working with at least one winding mandrel for winding a band-shaped material, preferably metal material, and a drive, which overcomes at least one of the above-mentioned technical disadvantages.
- the winder should have a high reliability in a compact design.
- the winder is preferably used for unwinding and winding of metal strips in metalworking, in particular of bands and hems, which arise in the processing of metal strips of steel or non-ferrous metals, the so-called non-ferrous metals.
- the winder may also be designed for unwinding and winding paper, such as paper liners.
- the winder according to the invention has at least one winding mandrel.
- the term "winding mandrel” hereby includes any cylindrical - not only circular cylindrical - rotatably mounted body, which is designed for unwinding or winding such strips or bands.
- the mandrel may be made in several parts, or it may be provided a plurality of mandrels, which cooperate according to preferred embodiments described later.
- the winder further comprises a housing.
- the housing does not have to be closed, but rather also a frame, a base frame and the like fall under the name "housing".
- the housing has one or more bearings for rotatably supporting the mandrel or a shaft which is connected to the winding mandrel on.
- the winder has at least one drive which has an electric motor with a stator and a rotor.
- the electric motor can be designed as a compact motor with its own bearings or bearings.
- the electric motor may be a permanent magnet three-phase motor, it preferably has a motor housing or motor frame, in which the rotor is mounted, which is for example in the conventional manner by the force exerted by a magnetic field on current-carrying conductor of a coil in rotation.
- the electric motor is a torque motor or synchronous motor.
- Such motors can produce very high torques at relatively low speeds, making them particularly suitable as motors for direct drives. For example, can be dispensed with a reduction gear in many cases when using a torque motor.
- the rotor is connected to the winding mandrel, whereby the rotation of the rotor is transmitted to the winding mandrel.
- the stator is mounted directly on the housing of the winder and / or the rotor is directly connected to the winding mandrel or the above-mentioned shaft of the winding mandrel.
- Any drive housing or motor housing, drive frame or motor frame is considered as part of the stator.
- the relevant mechanical components are in direct contact with each other, preferably in a rigid manner. This can be achieved for example by screwing, riveting or welding, but also a one-piece design is included.
- the drive functions as a direct drive to the rotary operation of the winding mandrel. If the stator of the drive is connected directly to the housing, the housing of the machine and the drive are "locked” to one another in this way. Due to the special integration on the one hand a very high torsional stiffness speed between the electric motor and the winding mandrel is achieved, on the other hand, complex mechanical Components, such as gears, clutches, cardan shafts, etc., in the drive train accounts. This simplifies the powertrain, it is compact, low-maintenance, lightweight and reliable. The winder achieves at low cost an improvement in the control properties of the winding mandrel, due to the high torsional stiffness.
- the illustrated drive system allows a simple increase in drive power, for example, in a conversion or modernization of the system, when about new materials to be processed without the existing drive must be replaced.
- the maintenance work on the winder is reduced, whereby the production time of the plant can be extended.
- this is accompanied by a reduction of safety-related expenses.
- the degrees of freedom of the machine are increased in terms of function and design.
- the reduction in the drive train is favorable in terms of any standardization or standardization of such drive systems.
- the housing can also be used as a heat sink or cooling surface of the electric motor.
- media such as hydraulic oil and / or cooling water, is also possible from the drive side of the winding mandrel.
- the electric motor is designed as an internal rotor, wherein the rotor is connected directly to the winding mandrel or directly to a shaft of the winding mandrel.
- the electric motor of the drive can be designed as an external rotor, in which case a jacket section of the winding mandrel is connected to the rotor.
- a "shell section” is understood to mean not only the outermost circumference of the cylindrical mandrel, but also further inward
- Sections as far as they allow a connection with the external rotor, are included.
- the shaft if the winding mandrel has such, can be mounted on the drive side in the housing or in the drive according to this embodiment.
- embodiments are also possible in which it is possible to dispense with a shaft because of the close connection of the jacket section to the rotor.
- the shell portion of the winding mandrel and the rotor are preferably connected directly to each other to further improve the Drehsteif ig speed, which according to a particularly preferred embodiment, an integral or partially integral formation is included.
- the housing preferably supports the mandrel only on one side, while on the
- the winding mandrel is mounted on the shaft or the rotor in the drive.
- Winding mandrel and the rotor share a storage.
- the shaft can be mounted on the housing via two bearings, whereby a bearing for the rotor in the drive can optionally be omitted.
- two winding mandrels are provided along an axis, wherein at least one of the two in the axial direction displaceable and frontally engageable with the other winding mandrel or can be pressed against it.
- mutually facing end faces of the two winding mandrels are preferably each designed to be conical and complementary to one another.
- the two mandrels can be considered in this case as mandrel halves of one and the same winding mandrel. According to this preferred
- Embodiment the supplied metal strip automatically by
- Winding mandrels can be driven apart, for example, by pressure medium cylinder and towards each other.
- a winding mandrel connected to the drive, while the other winding mandrel is entrained by adhesion between the end faces or via a possible clamped metal strip and thus manages without its own drive.
- the direct drive shown here allows both mandrels can each be provided with its own drive without the advantages of a compact space can be abandoned.
- This two-sided drive is a particularly preferred embodiment, since it makes the power transmission to the winding mandrel and the weight distribution uniform, resulting in advantages for the control technology. If two cooperating
- Mandrels are provided and the two mandrels in
- two drives are connected on opposite sides of the housing with the mandrel in order to equalize the power and weight distribution and / or to increase the drive power while maintaining a compact space.
- the rotor of the drive is preferably connected to the winding mandrel without the interposition of a torque transmission, in particular a reduction gear.
- a torque transmission By dispensing with a torque transmission, there is a direct and immediate torque transmission from the drive to the winding mandrel.
- torque train includes all those types of transmissions that convert input torque or input speed into output torque or output speed of other magnitude, thus performing torque conversion.
- the drive can be connected in certain embodiments via a spindle and / or a cardan shaft with the shaft. This is particularly suitable for drives with high performance or in adverse environmental conditions, such as in the hot rolling mill, into consideration.
- the drive has at least one catching magnet, which may be arranged, for example, annularly around a rotor extension.
- the capture magnet is designed to capture magnetic particles and keep them away from the electric motor. Thereby, despite the integral structure of the drive, magnetic particles can be prevented from getting into the electric motor, thereby improving the reliability of the drive.
- the drive in addition to the electric motor to a brake and / or holding device, for rapid braking and optionally locking the machine.
- the drive described above can be modular.
- the electric motor as the base module can be extended by a brake module.
- the drive can be extended by further modules, which are preferably cylindrical or disc-shaped.
- Possible extension modules include, for example, a power increase module with drive means (such as rotor and stator) to increase the performance of the base module and / or a transmission module. So that the modules can be combined with each other, they have technically compatible components, in particular interconnectable or mutually flangeable housing.
- Such a modular construction can increase the repetition frequency of identical parts (motor disks, stator disks, stator laminations, stator coils, brake disks, brake pads, etc.), thereby reducing the cost and increasing the reliability of the apparatus.
- the drive preferably has a rotary encoder or speedometer for measuring the angle of rotation and / or the rotational speed.
- the rotary encoder can be provided as a separate module or as part of a module. Likewise, a sensorless driving is possible.
- the drive may also be equipped with a cooling device.
- a cooling device This can be arranged for example as a separate module between the brake and the electric motor and / or as a cooling jacket in the motor housing of the drive.
- the cooling can be formed by means of a fan and / or as water or fluid cooling.
- the drive may have one or more integrated inverters.
- the drive described here is particularly well applicable as a direct drive for winding mandrels in coiling lines for unwinding and winding metal bands or metal strips.
- the invention is most preferably used in the industrial environment of metalworking, in the steel and non-ferrous industries, the invention may be practiced in other fields.
- winding applications in paper machines or textile machines are mentioned by way of example.
- FIG. 1 shows two schematic cross sections through a modular drive which is suitable as a direct drive for winders.
- FIG. 2 shows schematically a band reel with a modular direct drive.
- FIG. 3 shows schematically a seam winder with two direct drives.
- FIG. 1 contains detail parts a) and b), which show by way of example two forms of how the modules set forth below can be combined to produce the drive. Other individual arrangements are of course possible. Together with a suitable diameter graduation, a modular construction kit is provided as the basis for economical production of direct drives.
- the drive is mounted directly on a shaft 1.
- the shaft 1 is preferably used in an integral manner as a rotor shaft of the drive and as a shaft of a working machine, such as one of the winder shown below.
- the drive has bearing plates 2 with rolling bearings, which can store the shaft 1 and at the same time serve as a warehouse of the working machine.
- the drive is divided into modules for power adjustment, plus a basic module provided, which is composed essentially of a rotor element 3, which is a rotor according to the present application, winding elements 10 and a housing member 9.
- the housing element 9 is part of the stator of the drive.
- a winding element 5 is provided for receiving end windings.
- expansion modules 4 An individual extension or adaptation of the drive to the desired working condition is made possible by expansion modules 4. Further, a holding module 6 can be mounted. The modules and elements are preferably interconnected by Werankerverschraubungen 7. Steps and grooves in the respective modules and elements ensure a tolerance-based seat. Optionally, an encoder module 8 can be added. The base module and optionally further modules of the drive can be arranged both between the end shields 2 and also outside, according to a so-called flying bearing, explained in more detail below with reference to FIG.
- the above design is an exemplary way of modular construction of drives, especially direct drives. It is particularly suitable for driving reels and winders, but not limited to this type of machine. Rather, the modular drive is also applicable to other work machines, such as support and work rolls, pulley sets, winches and shears.
- FIG. 2 shows schematically a band reel with a modular direct drive.
- FIG. 2 b shows a reel shaft 101, which is a winding mandrel according to the present application and is supported by the bearings 102.
- the reel shaft 101 may be the shaft 1 of Figure 1, but it may also be integrally connected thereto.
- the bearings 102 may be the bearing plates 2 with the built-in roller bearings of Figure 1, whereby a close connection between the drive and the working machine is realized.
- the bearings 102 are on a base frame 103, which acts as a housing of the band reel, even if this is not the tape reel encloses.
- a base module 104 From the base frame 103, a base module 104, an expansion module 105, such as a power upgrade module, and a brake module 106 are held, which together build the drive for the reel.
- a media and / or energy duct 107 may be provided on the side opposite to the reel shaft 101.
- a cooling fan may be provided on the outside of the modules of the drive, wherein, for example, a separate cooling fan 109 may be assigned to each module, as shown in the figure section 2a, or alternatively a cooling fan 108 may span a plurality of modules, as shown in the figures cutouts 2b and 2c is shown.
- a cooling module (not shown) may be flanged to the drive as a cylindrical element, in the same way as the expansion module 105 or brake module 106.
- FIG. 3 schematically shows a winder with two drives 200a and 200b, which can each be designed in accordance with the exemplary embodiments of FIGS. 1 or 2 set out above.
- the two drives 200a, 200b each have a rotor 201a, 201b and a stator 202a, 202b.
- the winder has two winding mandrels 300a and 300b which may also be considered as two halves of one and the same winding mandrel.
- the winding mandrels 300a and 300b may each have a shaft (not shown), which is also referred to as a shaft journal, which in turn directly with the rotor 201 a, 201 b of corresponding drive 200a, 200b is connected, for example, is clamped therein.
- the winding mandrel 300a, 300b is connected in this way directly to the rotor 201 a, 201 b of the drive 200a, 200b.
- the rotor of the drive with the reference numeral 201 a, 201 b instead of the reference numerals 1 and 3 of Figure 1, to make it clear that the drive shown in Figure 1 an exemplary, albeit good suitable direct drive.
- Reference numeral 302 denotes the housing of the winder.
- the housing 302 has a winding chamber 303 in which the strip material is wound up.
- the two winding mandrels 300a and 300b project at least partially into the winding chamber 303, wherein the winding mandrels 300a and 300b are arranged along an axis and are rotatably supported by corresponding bearings (not shown) which may be provided in the housing.
- winding mandrels 300a, 300b are slidably provided in the axial direction, so that their end faces 301a, 301b can be brought into engagement or can be pressed against each other and released again.
- mutually facing end faces 301 a, 301 b of the two winding mandrels 300 a, 300 b are preferably each formed conically and complementary to each other.
- the supplied metal strip can be detected automatically by driving the two winding mandrels 300a, 300b against each other.
- the two winding mandrels 300a, 300b can be moved apart and through each other by means of pressure cylinders, electromotives or in some other way.
- each of the two winding mandrels 300a, 300b is driven by its own direct drive 200a, 200b.
- Such a double-sided drive equalizes the distribution of torque on the
- Winding mandrel 300a, 300b and the weight distribution which may result in advantages for the control technology. If the two winding mandrels 300a, 300b in the contracted state are not completely non-positively and / or positively engaged with each other, a small speed difference between the two drives 200a, 200b can be compensated. According to an alternative embodiment, it is possible that a winding mandrel is connected to a drive, while the other winding mandrel is entrained by frictional connection between the end faces or via a possible clamped metal strip and in this case has no own drive.
- a drive-side bearing for the rotor 201a, 201b or the associated winding mandrel 300a, 300b may be dispensed with.
- the stator 202a, 202b of the driver 200a, 200b is directly, i. mechanically rigid in this case, connected to the housing 302.
- the winder has at least one drive 200a, 200b for the rotary operation of the winding mandrel 300a, 300b, on the one hand ensuring a high torsional stiffness between the drive 200a, 200b and the winding mandrel 300a, 300b, on the other side a or multiple conventional powertrain components such as transmissions, clutches, cardan shafts, etc. may be omitted.
- drives 200a, 200b in the figure 3 are each runners, it should be noted that one or more drives can also be designed as an external rotor.
- the stationary parts of the electric motor ie the stator
- the rotor runs around the outside of the stator.
- the rotor can pass directly into the mandrel, integrally formed with this or be rigidly connected thereto.
- the jacket portion of the winding mandrel is in contact with the rotor.
- the wave of Winding mandrel is optionally rotatably mounted in a built-in drive bearing.
- the winding mandrel may optionally be dispensed with a shaft and its bearings.
- the direct drive or drives 200a, 200b according to FIG. 3 can furthermore be equipped with a cooling device (not shown).
- a cooling device (not shown).
- This can be arranged for example as a separate, cylindrical module between a high-performance brake and the electric motor and / or as a cooling jacket in the housing of the drive.
- the cooling can be formed by a fan and / or as water or fluid cooling.
- the modular structure shown in FIG 1 can be extended accordingly.
- a passage for media, such as hydraulic oil and / or cooling water is possible from the drive side by corresponding lines through the rotor 201 a, 201 b and optionally through the associated winding mandrel 300 a, 300 b are performed.
- the tight, integral connection between the drive and the mandrel allows a space-saving plant construction. This is accompanied by simplifications in plant construction, for example by a foundation saving, better accessibility of the plant, a reduction in the reserve parts, a reduction in maintenance costs, a reduction of the hall.
- the motors are not or less endangered by collars or other falling parts.
- a major advantage of the concept presented here becomes clear in the thermal design of the motors. Due to the intimate connection of the drives with the working machine, the mass and the surface of the mechanical device for heat dissipation can be shared. The power of the electric motors can be increased without structural measures. The power loss of the powertrain is significantly reduced. On a forced ventilation or water cooling can be dispensed with in many cases.
- the Motors can be designed as internal rotor or external rotor.
- the integrated concept described also offers safety improvements, as it eliminates the need for rotating external drive parts such as cardan shafts, clutches, brake discs, etc. It eliminates components such as bearings, shafts, couplings, motor bases, gear bases, etc. A reduction of the moving parts also has a higher control accuracy result.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Winding Of Webs (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017214414.9A DE102017214414A1 (en) | 2017-08-18 | 2017-08-18 | Direct drive for hem winder in metalworking |
PCT/EP2018/072094 WO2019034680A1 (en) | 2017-08-18 | 2018-08-15 | Direct drive for border winder in metalworking |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3668808A1 true EP3668808A1 (en) | 2020-06-24 |
EP3668808B1 EP3668808B1 (en) | 2021-01-20 |
Family
ID=63209424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18755467.0A Active EP3668808B1 (en) | 2017-08-18 | 2018-08-15 | Direct drive for border winder in metalworking |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3668808B1 (en) |
CN (1) | CN111183105B (en) |
DE (1) | DE102017214414A1 (en) |
WO (1) | WO2019034680A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021101531B4 (en) * | 2021-01-25 | 2022-10-20 | Achenbach BuschhĂĽtten GmbH & Co. KG | Coil for winding or unwinding strip-shaped material and method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2844882A1 (en) | 1978-10-14 | 1980-04-30 | Schloemann Siemag Ag | Seaming strip reeling installation - is fitted with winding prongs made in two sections one of which is driven with other capable of axial movement |
JPS62130948A (en) * | 1985-11-28 | 1987-06-13 | Mitsubishi Heavy Ind Ltd | Spindle driving device for winder |
DE4039606A1 (en) * | 1989-12-13 | 1991-06-20 | Sundwiger Eisen Maschinen | REEL FOR WINDING AND / OR UNWINDING METAL TAPES WITH TAPE TENSIONS BETWEEN 10KN AND 1000KN |
DE4143597C5 (en) * | 1991-11-22 | 2008-06-26 | BaumĂĽller NĂĽrnberg GmbH | Printing machine with at least one electric motor driven, axially adjustable cylinder or other rotary body |
DE19621171A1 (en) * | 1996-05-24 | 1997-11-27 | Schloemann Siemag Ag | Directly driven reel |
AU2003229565A1 (en) * | 2002-03-24 | 2003-10-08 | Vomag Gmbh | Device for supporting a shaft |
EP1787929A1 (en) * | 2003-03-19 | 2007-05-23 | Voith Patent GmbH | Machine or machine section with at least one electric motor, preferably as a synchronous motor and/or shaft mounted and used for direct driving a core of a winding reel or for the direct drive of another swivel component, in particular for application in the paper industry and the relevant conversion method |
EP1697054B1 (en) * | 2003-12-12 | 2009-06-17 | WIFAG Maschinenfabrik AG | External rotor drive |
DE102008011589B3 (en) * | 2008-02-28 | 2009-04-09 | Metabowerke Gmbh | Electric hand tool with magnets to absorb dust |
DE102013216375A1 (en) * | 2013-08-19 | 2015-02-19 | Sms Siemag Ag | Hem winder for band-shaped material |
EP3141499A1 (en) * | 2015-09-09 | 2017-03-15 | Siemens Aktiengesellschaft | Drive for a conveyor belt assembly, method for mounting a drive to a belt conveyor system and belt conveyor system |
-
2017
- 2017-08-18 DE DE102017214414.9A patent/DE102017214414A1/en not_active Withdrawn
-
2018
- 2018-08-15 WO PCT/EP2018/072094 patent/WO2019034680A1/en unknown
- 2018-08-15 EP EP18755467.0A patent/EP3668808B1/en active Active
- 2018-08-15 CN CN201880063489.3A patent/CN111183105B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102017214414A1 (en) | 2019-02-21 |
CN111183105A (en) | 2020-05-19 |
WO2019034680A1 (en) | 2019-02-21 |
CN111183105B (en) | 2022-01-21 |
EP3668808B1 (en) | 2021-01-20 |
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