Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
  • H02K41/02—Linear motors; Sectional motors
  • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
  • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
  • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
  • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
  • B67C3/22—Details
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
  • B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
  • B67C7/0006—Conveying; Synchronising
  • B67C7/004—Conveying; Synchronising the containers travelling along a circular path
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
  • H02K2201/15—Sectional machines

Definitions

• the invention relates to a drive for rotary machines with a fixed and a rotatable machine part.
• Such rotary machines are used for example as a container treatment machines in which drug or beverage containers, such as bottles or cans and the like., For. B. cleaned, filled and labeled.
• the containers handle turntables of different sizes. Depending on the size of the system and its intended use, these turntables can take on considerable proportions. They must be able to cope with high speeds and yet be precisely adjustable in their speed, for example to be able to compensate for fluctuations in capacity.
• Such rotary machines are driven by means of a servomotor, which moves via a gear, a pinion, which engages in a toothing on the rotating machine part and this rotates.
• the disadvantage here is the complicated structure of the overall arrangement by the need for a transmission, which must be designed very precisely and therefore consuming due to the requirements described. This also increases the susceptibility to failure of the entire system and must be regularly maintained. Since such systems are often operated in conjunction with large amounts of liquids, the overall arrangement must also be encapsulated watertight, which further increases the cost.
• the object of the invention is to provide a drive for the described rotary machines, which is constructed simpler and cheaper while maintaining the control accuracy and at the same time offers less wear and susceptibility to errors.
• the invention achieves this by a drive with the features of claim 1.
• a drive constructed can be completely dispensed with the use of a servo motor with gearbox.
• a ring with regularly spaced permanent magnet or electromagnet.
• an electromagnetic stator is arranged on the fixed part of the machine, as it is also used in a modified form in linear electric drives. This is bent and adjusted in its radius to the radius of the magnetic ring. He covers only a sub-sector of the rotating magnetic rim.
• the stator has a coil arrangement in the interior, which makes it possible to exert a tangential force on the magnets opposite to it and thus to make them rotate together with the entire rotatable machine part.
• the size of the stator as well as the number and arrangement of the integrated coils depends on the size, the necessary forces and speeds.
• the field generated by the coils such as field strength and field frequency, accurate control of both the generated moments and the resulting speeds can be achieved independently.
• the corresponding drive is combined with a ball slewing connection, which carries the rotatable part of the machine.
• the magnets may be arranged, for example, on the outer circumference of the rotatable part of the ball pivot connection and the stator corresponding to the fixed part of the rotary joint.
• the drive according to the invention is significantly smaller and more compact and can completely dispense with a transmission. Moreover, apart from the rotatable machine part, it no longer has any additional rotatable parts and is shifted into a typically dry area of the machine so that it is no longer exposed to any liquids or cleaning agents, which considerably reduces the susceptibility and maintenance intensity of the overall system.
• a measuring device is provided, for example in the form of an arranged on the axis of rotation optical Winkelpositionsgebers.
• FIG. 1 is a schematic side view of a rotary machine according to the prior art
• FIG. 2 is a partially sectioned side view of a rotary machine with the drive according to the invention
• Fig. 3 is a schematic plan view of a first embodiment of the drive according to the invention.
• Fig. 4 is a schematic plan view of a second embodiment of the drive according to the invention.
• a generally designated 1 rotary machine according to the prior art is shown in more detail in Fig. 1. It has a fixed machine part 2 and a rotatable machine part 3, which are connected to each other via a ball slewing 4. On the rotatable part outside filling stations 5 are arranged, with which beverage bottles 6 are filled with content.
• a toothing 7 is arranged in which a pinion 8 engages, which is driven by a servomotor 10 via a gear 9.
• a servomotor 10 By an appropriate supply of the servomotor 10 with power can thus drive the rotatable part of the machine and control in speed.
• FIG. 2 the drive according to the invention in Fig. 2 is shown in more detail.
• container treatment machine has a fixed machine part 22 and a rotatable machine part 23, which is a Central axis of rotation 21 can be rotated.
• a ball pivot connection 24 is provided which rotatably connects the rotating machine part 23 to the fixed machine part 22 and supports it.
• An electromagnetic stator 28 is circumferentially arranged on the outside of the ball pivot connection 24 and covers an angle sector of the connection.
• the stator 28 includes a coil assembly that allows to generate a changing electromagnetic field. This is regulated by means of a control unit, not shown.
• a magnetic field is generated by the stator 28 which exerts a tangential force on the lying in its range magnets 27 so that they are shifted, for example, clockwise, which the rotatable assembly results in rotation of the rotatable member 23.
• both the desired torque and the desired speed can be adapted to the requirements and are thus, for example, a controlled start-up of the system or shutdown allow.
• FIG. 4 An alternative embodiment is shown in Fig. 4 in more detail.
• a ring 34 which is fixedly connected to the rotating part of a corresponding rotary machine, not shown, in this case has on its inner circumference a plurality of magnets 37.
• a stator 38 Opposite a stator 38 is arranged, the coils are located on its outer periphery and thus allow analogous to the procedure described above, to put the machine in rotation.
• the invention is not limited to the above embodiments, but can be modified in many ways without departing from the spirit. So the exact configurations are the Rotary machines not specified.
• the number and arrangement of the magnets is variable within wide ranges, in particular dependent on the size and the forces and speeds to be achieved. Also, more than one stator can be used.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Electromagnetism (AREA)
• Power Engineering (AREA)
• Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
• Motor Or Generator Frames (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Permanent Magnet Type Synchronous Machine (AREA)
• Linear Motors (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=38924408

Family Applications (1)

Country Status (8)

Cited By (4)

Families Citing this family (18)

Citations (5)

Family Cites Families (12)

• 2006
  • 2006-08-19 DE DE102006039090A patent/DE102006039090A1/de not_active Ceased
• 2007
  • 2007-08-16 BR BRPI0714532-2A patent/BRPI0714532A2/pt not_active IP Right Cessation
  • 2007-08-16 JP JP2009524123A patent/JP2010502160A/ja active Pending
  • 2007-08-16 EP EP07818032A patent/EP2059471A1/de not_active Ceased
  • 2007-08-16 WO PCT/EP2007/007226 patent/WO2008022737A1/de not_active Ceased
  • 2007-08-16 MX MX2009001833A patent/MX2009001833A/es active IP Right Grant
  • 2007-08-16 CN CN200780052053.6A patent/CN101679011B/zh not_active Expired - Fee Related
• 2009
  • 2009-02-18 US US12/372,981 patent/US8302767B2/en not_active Expired - Fee Related

Patent Citations (5)

Non-Patent Citations (1)

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