EP0703185B1 - Elektrozug mit drehzahlgeregelter Geschwindigkeit - Google Patents
Elektrozug mit drehzahlgeregelter Geschwindigkeit Download PDFInfo
- Publication number
- EP0703185B1 EP0703185B1 EP95250198A EP95250198A EP0703185B1 EP 0703185 B1 EP0703185 B1 EP 0703185B1 EP 95250198 A EP95250198 A EP 95250198A EP 95250198 A EP95250198 A EP 95250198A EP 0703185 B1 EP0703185 B1 EP 0703185B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- protective housing
- electric
- hoist according
- electric hoist
- electric motor
- 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.)
- Revoked
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
- B66D3/20—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing
- B66D3/22—Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing with variable-speed gearings between driving motor and drum or barrel
Definitions
- the invention relates to an electric train with speed-controlled lifting speed, especially electric chain hoist, in which an electric motor, a transmission, one of which Traction device wrapped wheel, the traction device and a load suspension device are connected to one another in terms of drive, with an electrical control in an external protective housing for the Electric motor, which is connected to a hand control switch.
- Such electric chain hoists are hoists driven by an electric motor use a link chain as a means of suspension and mainly for vertical transport be used by loads.
- the electrical control includes the Hand control switch a corresponding number of motor switching pairs, which are protected on Chain hoist are installed.
- Electric (chain) trains generally have one Speed for lifting and lowering the load according to the nominal speed of the engine and the selected gear ratio. For special ones Use cases require a second slower speed. In these In some cases, a pole-changing motor is selected that has an additional winding for the second Has engine speed and with additional switches of the electrical control is switched.
- the application area of electric (chain) hoists and the Ease of use could be significantly improved if the speed, i.e.
- the frequency converter control replaces the electromechanical mentioned Motor switch.
- the problem arises that the mounting location of the motor switch for the Incorporation of a frequency converter unsuitable or available there standing space is too small. In particular, losses must be dissipated as heat be and also it is necessary to use means for speed measurement to provide appropriate accuracy.
- the present invention is therefore based on the object Electric (chain) train with speed-controlled lifting speed so that easy installation of control electronics and a tachometer space-saving is possible and the heat loss is dissipated sufficiently can.
- the task is based on the electric train mentioned at the beginning speed-controlled lifting speed according to the invention solved in that the electrical control, the control electronics with a speed sensor system and that a frequency converter having a power semiconductor for the electric motor for dissipating the heat loss of the power semiconductors, is thermally connected to the protective housing. This makes it possible to install the Control electronics and the speed sensor system simple and space-saving carry out and at the same time dissipate the heat loss sufficiently.
- the protective housing is in the form of a cup-shaped hood having. This provides the necessary space, because that Protective housing adapts ideally to the other housing components, so that one compact unit is created.
- cup-shaped hood made of a good heat-conducting material consists. This promotes heat dissipation.
- the desired heat dissipation can advantageously be promoted thereby be that on the inside of the bottom of the pot a carrier for heat loss generating power semiconductor of a frequency converter is attached.
- the desired use of space is thereby further features of the invention supports that in a sub-box between protective housing and gear box a shaft end of the transmission or the electric motor protrudes on which a pulse wheel the sensor system is fixed.
- the pulse wheel can with the engine speed or one turn only slightly reduced speed and e.g. from a magnetic ring and one corresponding number of north and south poles for a magnetic sensor or consist of a reticle for an optical sensor.
- This arrangement can be carried out so that the scanning unit of the sensor system is attached to the swivel-out circuit board and the impulse wheel opposite on the gearbox or motor shaft.
- the closed housing of the compact unit of the electric train can now go further can be cooled by using the sensor opposite the shaft end Shaft end of the electric motor a fan wheel is rotatably arranged and that that Protective housing, the lower box, the gear box and the electric motor housing each closed from the outside, internally connected interiors form.
- the cooling air flow of the fan wheel is therefore by the electric motor Gearbox, the sensors up to the converter unit and out of there Protective housing guided out.
- the components for the Processing of the control command from the manual control switch, the speed detection, the Speed control of the electric motor and control of the frequency converter are arranged.
- the frequency converter installed in the protective housing is over Line connections to the power grid, the electric motor and the printed circuit board connected.
- Another improvement is that between the protective housing and Lower box and seals are inserted around a cable duct. Thereby is the protection of the frequency converter, the speed sensor system, the gearbox, the Electric motor and other components guaranteed.
- the electric train with speed-controlled lifting speed is in the embodiment shown as an electric chain hoist 1.
- the electric train consists of one main group Electric motor 2 with an electric motor housing 2a, from a gear 3, the can have several gear stages. In the exemplary embodiment there are two Gear stages shown with gears. The last gear stage is entered as wheel 4 Sprocket 4a and the traction means 5 here consists of a chain 5a, on the one Load suspension means 6, e.g. a crane hook, a bottom block u. Like. Are attached.
- A serves to regulate the speed and thus to regulate the lifting speed Electrical control 7, which consists of control electronics 7a, which means a manual control switch 26 is operated.
- the electrical control 7 in the form of the control electronics 7a has one Speed sensor 8 on, with a pulse wheel 8a, which in the example of Figure 2 on a Gearbox or motor shaft 17 is arranged and furthermore has a scanning unit 8b on.
- the pulse wheel 8a consists e.g. from a circumferential magnetic ring with a corresponding number of north and south poles for a magnetic sensor or but from a reticle for an optical sensor.
- the speed sensor system 8 is in one with the control electronics 7a a gear box 9 adjoining protective housing 10 and accordingly, a cooling accessible.
- the protective housing 10 which is on the outside, has the shape of a cup-shaped one Cover 10a.
- the cooling can e.g. due to a good heat-conducting material, through cooling slots, i.e. on the principle of heat flow and / or Heat conduction are built up. It is advantageous for this on an inside 11 of the Pot bottom 10b a carrier 12 for power semiconductors 13 that generate heat loss a frequency converter 14 housed.
- the inside 11 of the Protective housing 10 to improve the heat transfer with a black Provide surface 15.
- a shaft end 17a of the transmission 3 or the electric motor 2 projects into one Lower box 16 between the protective housing 10 and the gear box 9 a pulse wheel 8a of the sensor system 8 is arranged in a rotationally fixed manner at this shaft end 17a.
- An electronic circuit board 19 is installed in the lower box 16. To Removing the protective housing 10 can this circuit board 19 around a hinge 20th be pivoted outwards (after loosening the opposite screws) improved accessibility and access to the impulse wheel 8a.
- the sensor system 8 of the type provided that the scanning unit 8b of the sensor system 8 is attached to the pivotable circuit board 19 and the pulse wheel 8a opposite on the transmission or motor shaft 17th
- the cooling can also be carried out by circulating cooling air. This is on a shaft end 17b of the electric motor opposite the shaft end 17a 2 a fan wheel 23 arranged in a rotationally fixed manner.
- the cooling air flow of the fan wheel 23 is through 24 interiors that are connected to each other and closed to the outside 24a of the electric motor 2 and 24b of the gear box 9 and 24c of the lower box 16 or the protective housing 10, 10 at the end of the protective housing Cooling air slots, not shown, are attached.
- components 25 for the Processing the control command from the hand control switch 26 ( Figure 2) Speed detection, the speed control of the electric motor 2 and for the control of the frequency converter 14 is arranged.
- the frequency converter 14 installed in the protective housing 10 is about Line connections 27 to the power grid, the electric motor 2 and the printed circuit board 19 connected. Between the protective housing 10 and the lower box 16 and Seals 29 are inserted around the line bushing 28.
Description
- Figur 1
- einen axialen Schnitt durch die gesamte Einheit des Elektrozuges und
- Figur 2
- einen vergrößerten Teilschnitt des Schutzgehäuses mit Unterkasten sowie mit dem Handsteuerschalter.
- 1
- Elektrokettenzug
- 2
- Elektromotor
- 2a
- Elektromotorgehäuse
- 3
- Getriebe
- 4
- Rad
- 4a
- Kettenrad
- 5
- Zugmittel
- 5a
- Kette
- 6
- Lastaufnahmemittel
- 7
- elektrische Steuerung
- 7a
- Steuerungselektronik
- 8
- Drehzahlsensorik
- 8a
- Impulsrad
- 8b
- Abtasteinheit
- 9
- Getriebekasten
- 10
- Schutzgehäuse
- 10a
- topfförmige Haube
- 10b
- Topfboden
- 11
- Innenseite
- 12
- Träger
- 13
- Leistungshalbleiter
- 14
- Frequenzumrichter
- 15
- schwarze Oberfläche
- 16
- Unterkasten
- 17
- Getriebe- bzw. Motorwelle
- 17a
- Wellen-Ende
- 17b
- Wellen-Ende
- 18 19
- Leiterplatine
- 20
- Scharnier
- 21
- Zentrierdorn
- 22
- Abstand
- 23
- Lüfterrad
- 24
- Inneres
- 24a
- Innenraum
- 24b
- Innenraum
- 24c
- Innenraum
- 25
- Bauteile
- 26
- Handsteuerschalter
- 27
- Leitungsverbindungen
- 28
- Leitungsdurchführung
- 29
- Dichtungen
Claims (13)
- Elektrozug mit drehzahlgeregelter Hubgeschwindigkeit, insbesondere Elektrokettenzug, bei dem ein Elektromotor (2), ein Getriebe (3), ein von dem Zugmittel (5) umschlungenes Rad (4), das Zugmittel und ein Lastaufnahmemittel (6) antriebsmäßig miteinander verbunden sind, mit einer elektrischen Steuerung (7) in einem auf dem Getriebekasten (9) aufgesetzten außenliegenden Schutzgehäuse (10) für den Elektromotor (2), die an einen handsteuerschalter (26) angeschlossen ist,
dadurch gekennzeichnet, dass die elektrische Steuerung (7) eine Steuerungselektronik (7a) mit einer Drehzahlsensorik (8) aufweist und dass ein Leistungshalbleiter (13) aufweisender Frequenzumrichter (14) für den Elektromotor (2) zur Ableitung der Verlustleistungswärme der Leistungshalbleiter (13) wärmeleitend mit dem Schutzgehäuse (10) verbunden ist. - Elektrozug nach Anspruch 1,
dadurch gekennzeichnet, daß das Schutzgehäuse (10) die Form einer topfförmigen Haube (10a) aufweist. - Elektrozug nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, daß die topfförmige Haube (10a) aus gut wärmeleitendem Werkstoff besteht. - Elektrozug nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß auf der Innenseite (11) des Topfbodens (10b) ein Träger (12) für Verlustwärme erzeugende Leistungshalbleiter (13) eines Frequenzumrichters (14) befestigt ist. - Elektrozug nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die Innenseite (11) des Schutzgehäuses (10) zur Verbesserung des Wärmeübergangs mit einer schwarzen Oberfläche (15) versehen ist. - Elektrozug nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß in einen Unterkasten (16) zwischen Schutzgehäuse (10) und Getriebekasten (9) ein Wellen-Ende (17a) des Getriebes (3) bzw. des Elektromotors (2) ragt, auf dem ein Impulsrad (8a) der Sensorik (8) drehfest angeordnet ist. - Elektrozug nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß in den Unterkasten (16) eine elektronische Leiterplatine (19) eingebaut ist, die nach Abnehmen des Schutzgehäuses (10) um ein Scharnier (20), das im Unterkasten (16) bzw. im Getriebekasten (9) befestigt ist, herausschwenkbar ist. - Elektrozug nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß die Abtasteinheit (8b) der Sensorik (8) auf der herausschwenkbaren Leiterplatine (19) befestigt ist und das Impulsrad (8a) gegenüberliegend auf der Getriebe- bzw. Motorwelle (17) angeordnet ist. - Elektrozug nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß zur exakten Positionierung der Abtasteinheit (8b) ein Zentrierdorn (21) in gleichem Abstand (22) zur Getriebe- bzw. Motorwelle (17 ) durch den Unterkasten (16) und durch die Leiterplatine (19) verlaufend angeordnet und befestigt ist. - Elektrozug nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß auf dem zum Wellen-Ende (17a) der Sensorik (8) gegenüberliegenden Wellen-Ende (17b) des Elektromotors (2) ein Lüfterrad (23) drehfest angeordnet ist und daß das Schutzgehäuse (10), der Unterkasten (16), der Getriebekasten (9) und das Elektromotorgehäuse (2a) jeweils nach außen verschlossene,im Innern (24) miteinander verbundene Innenräume (24a,24b,24c) bilden. - Elektrozug nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß auf der Leiterplatine (19) die Bauteile (25) für die Verarbeitung des Steuerbefehls vom Handsteuerschalter (26), die Drehzahlerfassung, die Drehzahlregelung des Elektromotors (2) und die Steuerung des Frequenzumrichters (14) angeordnet sind. - Elektrozug nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß der im Schutzgehäuse (10) eingebaute Frequenzumrichter (14) über Leitungsverbindungen (27) an das Stromnetz, den Elektromotor (2) und die Leiterplatine (19) angeschlossen ist. - Elektrozug nach Anspruch 12,
dadurch gekennzeichnet, daß zwischen Schutzgehäuse (10) und Unterkasten(16), sowie um eine Leitungsdurchführung (28) Dichtungen (29) eingelegt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4434373 | 1994-09-15 | ||
DE4434373A DE4434373C2 (de) | 1994-09-15 | 1994-09-15 | Elektrozug mit drehzahlgeregelter Geschwindigkeit |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0703185A2 EP0703185A2 (de) | 1996-03-27 |
EP0703185A3 EP0703185A3 (de) | 1996-12-27 |
EP0703185B1 true EP0703185B1 (de) | 2002-04-10 |
Family
ID=6529225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95250198A Revoked EP0703185B1 (de) | 1994-09-15 | 1995-08-11 | Elektrozug mit drehzahlgeregelter Geschwindigkeit |
Country Status (5)
Country | Link |
---|---|
US (1) | US5632469A (de) |
EP (1) | EP0703185B1 (de) |
JP (1) | JP3738060B2 (de) |
DE (1) | DE4434373C2 (de) |
ES (1) | ES2171499T3 (de) |
Families Citing this family (32)
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US5915673A (en) * | 1996-03-27 | 1999-06-29 | Kazerooni; Homayoon | Pneumatic human power amplifer module |
US5865426A (en) | 1996-03-27 | 1999-02-02 | Kazerooni; Homayoon | Human power amplifier for vertical maneuvers |
DE19634097C2 (de) * | 1996-08-23 | 1998-07-09 | Kostal Leopold Gmbh & Co Kg | Elektromotor |
ES2152852B1 (es) * | 1998-10-06 | 2001-10-01 | Tecnotrans Sabre S A | Conjunto compacto de moto-variador-reductor para accionamiento de maquinas industriales. |
US6435619B1 (en) | 1999-12-23 | 2002-08-20 | Geosteering Mining Services, Llc | Method for sensing coal-rock interface |
US6781130B2 (en) | 1999-12-23 | 2004-08-24 | Geosteering Mining Services, Llc | Geosteering of solid mineral mining machines |
US6465788B1 (en) | 1999-12-23 | 2002-10-15 | Frederick Energy Products Llc | Ruggedized photomultiplier tube and optical coupling in armored detector |
IT1317644B1 (it) * | 2000-05-18 | 2003-07-15 | Chiara Sozzi | Dispositivo di azionamento perfezionato per la trazione di cavi ocatene |
US6439544B1 (en) * | 2001-01-19 | 2002-08-27 | Conrad Rosenberg | Stair tow system and method |
US6634621B2 (en) * | 2001-08-03 | 2003-10-21 | Malcolm E. Keith | Lifting device and a method for lifting by using the same |
CA2789987C (en) * | 2002-03-22 | 2016-02-02 | General Electric Company | Instrumentation package and integrated radiation detector |
DE20211542U1 (de) * | 2002-07-10 | 2003-01-16 | Demag Cranes & Components Gmbh | Hängesteuereinrichtung |
JP4265902B2 (ja) * | 2002-11-05 | 2009-05-20 | 株式会社ミツバ | モータユニット |
US20050017228A1 (en) * | 2003-07-22 | 2005-01-27 | Werner Peter Harold | Winch control method and apparatus |
WO2005048435A1 (de) | 2003-11-13 | 2005-05-26 | Sew-Eurodrive Gmbh & Co. Kg | Kompaktantrieb |
US7334776B2 (en) * | 2004-07-08 | 2008-02-26 | Homayoon Kazerooni | Apparatus and method for vehicle on-board cargo handling system |
US7097155B2 (en) * | 2004-07-16 | 2006-08-29 | Tulsa Winch, Inc. | Winch or hoist including a device for signaling when a preset minimum number of cable windings are left on a winding drum |
US7219879B2 (en) * | 2004-07-16 | 2007-05-22 | Tulsa Winch, Inc. | Apparatus for signaling rotation of a winch to an operator thereof |
US7559533B2 (en) * | 2006-01-17 | 2009-07-14 | Gorbel, Inc. | Lift actuator |
US7907045B2 (en) | 2007-03-19 | 2011-03-15 | Kito Corporation | Hoisting machine |
JP5355861B2 (ja) * | 2007-03-19 | 2013-11-27 | 株式会社キトー | 巻上機 |
DE102007039030A1 (de) | 2007-08-17 | 2009-02-26 | Hoffmann Fördertechnik GmbH Wurzen | Elektrokettenzug mit großer Hubhöhe und hoher Hubgeschwindigkeit |
DE102007047360B4 (de) | 2007-10-02 | 2011-02-17 | Hoffmann Fördertechnik GmbH Wurzen | Elektrokettenzug |
WO2009043324A1 (de) * | 2007-10-02 | 2009-04-09 | Hoffmann Fördertechnik GmbH Wurzen | Elektrokettenzug mit hoher hubgeschwindigkeit |
JP5539173B2 (ja) * | 2010-11-25 | 2014-07-02 | 株式会社キトー | 巻上機 |
JP2013136465A (ja) * | 2013-04-12 | 2013-07-11 | Kito Corp | 巻上機 |
CN103803441A (zh) * | 2014-02-18 | 2014-05-21 | 安徽强力重工起重机械有限公司 | 一种电动葫芦 |
JP6689084B2 (ja) * | 2016-01-25 | 2020-04-28 | 株式会社キトー | エンコーダの連結構造 |
CN106829702A (zh) * | 2017-03-31 | 2017-06-13 | 叶华 | 一种具备多种响应功能的拖拉装置 |
CN108862068B (zh) * | 2018-06-26 | 2020-08-28 | 合肥市春华起重机械有限公司 | 一种起重机用起升机构 |
CN110939410A (zh) * | 2019-12-26 | 2020-03-31 | 张海涛 | 一种用于皮带式抽油机的速度保护控制器 |
CN111943022A (zh) * | 2020-08-19 | 2020-11-17 | 山东鼎鲁建筑有限公司 | 一种桥梁检修用自升降设备 |
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DE969911C (de) * | 1950-03-28 | 1958-07-31 | Demag Zug Gmbh | Anordnung eines Apparatesatzes an oder in einer gekapselten Blockwinde |
GB741063A (en) * | 1952-10-17 | 1955-11-23 | Demag Zug Gmbh | Electric hoist |
FR1466692A (fr) * | 1966-01-22 | 1967-01-20 | Birfield Eng Ltd | Palan électrique |
DE3142473A1 (de) * | 1981-10-27 | 1983-05-11 | R. Stahl GmbH & Co , Elektrozugwerk, 7118 Künzelsau | Elektrokettenzug |
US4636962A (en) * | 1983-05-24 | 1987-01-13 | Columbus Mckinnon Corporation | Microprocessor-controlled hoist system |
AU570695B2 (en) * | 1984-09-21 | 1988-03-24 | Columbus Mckinnon Corporation | Microprocessor-controlled hoist system |
US4580640A (en) * | 1985-04-01 | 1986-04-08 | East Moline Metal Products Company | Stroke control responsive to impact of hydraulic hammer |
JPS6360898A (ja) * | 1986-08-29 | 1988-03-16 | 株式会社 キト− | 電気チエ−ンブロツクの操作装置 |
EP0257647B1 (de) * | 1986-08-29 | 1993-11-03 | Kabushiki Kaisha Kito | Bedienungsvorrichtung für elektrische Hubeinrichtung |
FI77754C (fi) * | 1986-12-23 | 1989-04-10 | Kone Oy | Lyftmotorenhet. |
DE3838058C3 (de) * | 1988-11-07 | 1996-04-11 | Mannesmann Ag | Antriebsüberwachung einer Antriebskette |
EP0529120A1 (de) * | 1991-08-24 | 1993-03-03 | ABUS Kransysteme GmbH & Co. KG. | Verfahren zur Regelung eines Hubwerkantriebs |
-
1994
- 1994-09-15 DE DE4434373A patent/DE4434373C2/de not_active Expired - Fee Related
-
1995
- 1995-08-11 ES ES95250198T patent/ES2171499T3/es not_active Expired - Lifetime
- 1995-08-11 EP EP95250198A patent/EP0703185B1/de not_active Revoked
- 1995-08-29 JP JP24358395A patent/JP3738060B2/ja not_active Expired - Fee Related
- 1995-09-15 US US08/529,015 patent/US5632469A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0703185A2 (de) | 1996-03-27 |
ES2171499T3 (es) | 2002-09-16 |
JPH0891784A (ja) | 1996-04-09 |
EP0703185A3 (de) | 1996-12-27 |
JP3738060B2 (ja) | 2006-01-25 |
DE4434373C2 (de) | 1999-04-01 |
DE4434373A1 (de) | 1996-03-28 |
US5632469A (en) | 1997-05-27 |
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