EP1695433A1 - Systeme permettant de fixer un rail magnetique d'un moteur lineaire electrique sur un support - Google Patents

Systeme permettant de fixer un rail magnetique d'un moteur lineaire electrique sur un support

Info

Publication number
EP1695433A1
EP1695433A1 EP04820608A EP04820608A EP1695433A1 EP 1695433 A1 EP1695433 A1 EP 1695433A1 EP 04820608 A EP04820608 A EP 04820608A EP 04820608 A EP04820608 A EP 04820608A EP 1695433 A1 EP1695433 A1 EP 1695433A1
Authority
EP
European Patent Office
Prior art keywords
carrier
magnetic rail
holder
magnetic
rail
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.)
Withdrawn
Application number
EP04820608A
Other languages
German (de)
English (en)
Inventor
Michael Muth
Jan Brand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1695433A1 publication Critical patent/EP1695433A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/30—Tracks for magnetic suspension or levitation vehicles
    • E01B25/32—Stators, guide rails or slide rails
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/26—Means for adjusting casings relative to their supports

Definitions

  • the invention relates to a device for fixing a magnetic rail of an electric linear motor to a carrier by means of at least one holder firmly anchored to the carrier, which overlaps the magnetic rail with stop shoulders on its upper side facing away from the carrier.
  • Such a device is e.g. made known by DE 10143808 AI.
  • the magnetic rail is then covered with permanent magnets on the upper side and firmly clamped to the carrier on the underside by means of lateral claw-like clamping pieces. There is a very high attraction between the permanent magnets and a coil part that can be moved over them.
  • the clamping pieces press the magnetic rail so firmly against the carrier that the magnetic rail remains securely fixed to the carrier even under the effect of this attractive force.
  • a device according to the preamble of claim 1 is known from WO 02/087061 AI.
  • the magnetic rail is fastened to the support profile by means of end plates at the end and stops made in the support. Gluing or potting the magnetic rail to the carrier is also proposed.
  • the invention has for its object to largely decouple the magnetic rail from the carrier.
  • the stop shoulders create a defined system for the magnetic rail on its top, so that the distance to the coil part of the linear motor remains independent of the flatness of the carrier and the thickness of the rail.
  • the electromagnetic interrelationships between the coil part and the magnet rail are not affected by different distances.
  • the clamping tongues can rest against the magnetic rail with a low preload so that it can stretch without any significant resistance. It is sufficient to allow the magnetic rail to bear against the stops with less pretension, so that different thermal expansions between the magnetic rail and the carrier can be compensated for in that the magnetic rail can expand in its longitudinal direction without the risk of being braced with the carrier. Since the magnetic rail no longer lies directly on the carrier, a large-area thermal contact is avoided, so that one-sided heating of the carrier along the magnetic rail can be largely avoided.
  • a defined distance can be set, which ensures a uniform height level of the stop shoulders.
  • the anchoring points with the carrier are outside the magnetic rail, which reduces the heat coupling.
  • the holder according to claim 4 can be kept so short that there is no significant tension to the carrier even with different thermal expansion.
  • a further decoupling of the magnetic rail from the carrier is achieved by the development according to claim 7.
  • the spring element according to claim 11 has the advantage that the spring can be relaxed before the holder is attached to the magnetic rail and tensioned in the applied state, which facilitates assembly.
  • FIG. 1 shows a plan view of a carrier with magnetic rails of a linear motor and with holders
  • FIG. 2 shows an enlarged section II from FIG. 1
  • FIG. 3 shows a section along the line III-III in FIG. 2
  • FIG. 4 shows a side view of the parts according to FIG. 2,
  • FIG. 5 shows an enlarged detail V from FIG. 3.
  • FIG. 1 shows an elongated carrier 1, on which a linear magnetic path formed from two magnetic rails 2 is fixed by means of holders 3.
  • the magnetic rails 2 are aligned at their ends by centering pins 4.
  • the magnetic rail 2 made of soft iron is removed from the carrier 1 on its facing top with permanent magnets 5.
  • the carrier 1 consists of a carbon fiber composite material (CFRP), the thermal expansion of which is considerably less than that of the soft iron of the magnetic rail 2.
  • CFRP carbon fiber composite material
  • the carrier 1 is, for. B. part of a movable positioning arm of an automatic placement machine for assembling electrical circuit boards with components.
  • a positioning arm is accelerated or braked very strongly and is therefore made as light as possible.
  • a longitudinal bracing with the magnetic rail 2 would therefore lead to considerable bending, which would impair the positional accuracy of a placement head driven by the linear motor.
  • the magnetic rail 2 is not fixed directly to the carrier 1, but is arranged at a distance from the carrier 1 by the holder 3.
  • a mobile coil part 6 of the linear motor can be moved via the permanent magnet 5.
  • Considerable attractive forces 12 arise between the coil part 6 and the permanent magnets 5, which must be transferred to the carrier 1 via the holder 3.
  • the holders 3 are anchored to the side of the magnetic rail 2 on the carrier 1 by means of screws 7 in a flat support and overlap the side edge of the magnetic rail 2 with a lateral projection 8.
  • the underside of the projection 8 facing the carrier 1 forms a stop shoulder 9 for the magnetic rail 2.
  • the spring element 10 is telescopically displaceably mounted in a base body of the holder 3 and can be pressed by a separate tension spring 14 in the form of a spiral compression spring in the direction of the stop shoulder 9, the tension spring 14 between the base body and a support shoulder 15 of the
  • Spring element 10 is clamped.
  • the spring element 10 consists of two parts screwed together, one of which has the support shoulder 15 and the other has the clamping tongue 11. By loosening this screw connection, the spring tension can be reduced in such a way that the magnetic rail 2 can be easily inserted between the clamping tongue 11 and the stop shoulder 9. The full preload is built up by subsequently tightening the screw connection.
  • the magnetic rails 2 are fixed longitudinally and transversely at the mutually facing ends by means of the centering pins 4 in the middle of the magnetic path.
  • the holder 3 and 2 in the magnetic rail 2 play-free center holes are provided in the projections.
  • elongated holes 16 are provided in the longitudinal direction, into which the centering pins 4 engage with longitudinal play. This fixes the magnetic rail in the transverse direction and allows it to move freely in the longitudinal direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

L'invention concerne un rail magnétique (2) d'un moteur linéaire magnétique, lequel rail s'appuie avec sa face supérieure contre des épaulements de butée (9) d'éléments de maintien à chevauchement, solidement ancrés sur un support (1) et placés à une hauteur définie au-dessus du support (1). La distance entre le support (1) et les épaulements de butée (9) est supérieure à l'épaisseur correspondante du rail magnétique (2), qui est pressé de façon définie contre les épaulements de butée (9) au moyen d'éléments flexibles (10) à faible précontrainte. Ainsi, la distance entre le rail magnétique (2) et une partie bobine (6) du moteur linéaire est maintenue à une valeur constante indépendamment de différences d'épaisseur et un gauchissement du rail magnétique (2), à déplacement longitudinal, avec le support (1) est évité en cas de dilatation thermique différente.
EP04820608A 2003-12-19 2004-11-26 Systeme permettant de fixer un rail magnetique d'un moteur lineaire electrique sur un support Withdrawn EP1695433A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003159820 DE10359820A1 (de) 2003-12-19 2003-12-19 Einrichtung zum Fixieren einer Magnetschiene eines elektrischen Linearmotors an einem Träger
PCT/EP2004/053117 WO2005062446A1 (fr) 2003-12-19 2004-11-26 Systeme permettant de fixer un rail magnetique d'un moteur lineaire electrique sur un support

Publications (1)

Publication Number Publication Date
EP1695433A1 true EP1695433A1 (fr) 2006-08-30

Family

ID=34683586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04820608A Withdrawn EP1695433A1 (fr) 2003-12-19 2004-11-26 Systeme permettant de fixer un rail magnetique d'un moteur lineaire electrique sur un support

Country Status (4)

Country Link
EP (1) EP1695433A1 (fr)
CN (1) CN1894842A (fr)
DE (1) DE10359820A1 (fr)
WO (1) WO2005062446A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009028148A1 (de) 2009-07-31 2011-02-03 Robert Bosch Gmbh Zahnradpumpe
JP5367593B2 (ja) * 2010-01-13 2013-12-11 株式会社東芝 ガス絶縁母線
DE102014119113B3 (de) * 2014-12-18 2016-04-14 Weiss Gmbh Verbundlinearführung mit Fixierungsmittel
CN107302128B (zh) * 2017-06-15 2020-08-28 昆山睿翔讯通通信技术有限公司 一种基于方向图可调的毫米波阵列天线的通信终端
CN113557205B (zh) * 2019-03-20 2023-03-28 雅马哈发动机株式会社 线性输送机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
OA08210A (fr) * 1986-02-24 1987-10-30 Sud Ouest Travaux Dispositif d'attache élastique pour rail de voies ferrées.
DE3912327A1 (de) * 1989-04-14 1990-10-18 Hamburger Hochbahn Ag Elastische schienenhalterung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2957110B2 (ja) * 1995-07-20 1999-10-04 学校法人君が淵学園 磁気浮上走行システムにおける磁気レールの取付機構
JP4273476B2 (ja) * 2000-02-18 2009-06-03 Ｓｍｃ株式会社 リニアアクチュエータ
CH695153A5 (de) * 2000-08-31 2005-12-30 Etel Sa Baueinheit eines Linearmotors und Verfahren zur Montage dieser Baueinheit.
CH695286A5 (de) * 2001-04-23 2006-02-28 Etel Sa Linearmotor mit integrierter Fuehrung.
DE10143808A1 (de) * 2001-09-06 2003-04-03 Rexroth Indramat Gmbh Sekundärteil eines Linearmotors
DE10221627A1 (de) * 2002-05-15 2003-11-27 Alexander Von Wilcken Fahrweg für eine Magnetschwebebahn

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
OA08210A (fr) * 1986-02-24 1987-10-30 Sud Ouest Travaux Dispositif d'attache élastique pour rail de voies ferrées.
DE3912327A1 (de) * 1989-04-14 1990-10-18 Hamburger Hochbahn Ag Elastische schienenhalterung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005062446A1 *

Also Published As

Publication number Publication date
DE10359820A1 (de) 2005-07-21
CN1894842A (zh) 2007-01-10
WO2005062446A1 (fr) 2005-07-07

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