DE202004000950U1 - Linear servo component for lifting devices like hospital beds includes a guide screw with a threaded section and a worm wheel to engage a motor shaft - Google Patents
Linear servo component for lifting devices like hospital beds includes a guide screw with a threaded section and a worm wheel to engage a motor shaft Download PDFInfo
- Publication number
- DE202004000950U1 DE202004000950U1 DE200420000950 DE202004000950U DE202004000950U1 DE 202004000950 U1 DE202004000950 U1 DE 202004000950U1 DE 200420000950 DE200420000950 DE 200420000950 DE 202004000950 U DE202004000950 U DE 202004000950U DE 202004000950 U1 DE202004000950 U1 DE 202004000950U1
- Authority
- DE
- Germany
- Prior art keywords
- linear actuator
- actuator according
- chamber
- worm wheel
- motor shaft
- 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.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 241000237858 Gastropoda Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2071—Disconnecting drive source from the actuator, e.g. using clutches for release of drive connection during manual control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2084—Perpendicular arrangement of drive motor to screw axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/209—Arrangements for driving the actuator using worm gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Description
Ein Linearstellglied ist eine Konstruktion unter Verwendung einer Baugruppe aus einem Motor, einem Getriebe und einer Verbindungsstange zum Auslösen einer Drehung einer Führungsschraube, um für lineares Ein- und Ausfahren eines Innenrohrs zu sorgen. Ein derartiges Linearstellglied wird allgemein bei Krankenbetten, Hubeinrichtungen oder anderen Vorrichtungen angewandt, die Ein- und Ausfahrbewegungen erfordern.A linear actuator is a construction using an assembly from an engine, a transmission and a connecting rod for causing rotation of a lead screw to for linear To ensure that an inner tube is retracted and extended Such a linear actuator is common with sick beds, lifting equipment or others Applied devices that require moving in and out.
Bei einem typischen Linearstellglied wirkt die Last der Führungsschraube auf ein Axiallager (Gegendrucklager). Da das Axiallager nur die axiale Last der Führungsschraube abstützen kann, ist die Lastkapazität des Linearstellglieds sehr eingeschränkt. So kann es durch Überlastung des Linearstell glieds zu Sicherheitsproblemen kommen.With a typical linear actuator acts the load of the lead screw on a thrust bearing (counter pressure bearing). Since the thrust bearing only the axial load of the lead screw support can is the load capacity of the linear actuator is very limited. This can be due to overload of the linear actuator lead to safety problems.
Der Erfindung liegt die Aufgabe zugrunde, ein Linearstellglied mit verbesserter Lastkapazität, verbesserter Anwendungssicherheit und gleichmäßiger Betätigung zu schaffen.The invention is based on the object Linear actuator with improved load capacity, improved application safety and even actuation create.
Diese Aufgabe ist durch das Linearstellglied gemäß dem beigefügten Anspruch 1 gelöst. Das erfindungsgemäße Linearstellglied verfügt insbesondere über zwei Kugellager, die so wirken, dass sie eine radiale bzw. eine axiale Last abstützen. Daher ist die Lastkapazität des Linearstellglieds verbessert, wodurch auch die Anwendungssicherheit verbessert ist. Außerdem können dadurch Gegendruckkräfte besser aufgefangen werden, und die Einfahrbewegung kann gleichmäßiger ausgeführt werden.This object is achieved by the linear actuator according to the appended claim 1 solved. The linear actuator according to the invention has especially about two ball bearings that act so that they are radial or one Support axial load. Hence the load capacity of the linear actuator is improved, which also increases application safety is improved. Moreover can thereby counter pressure forces can be better absorbed, and the entry movement can be carried out more evenly.
Die Erfindung wird nachfolgend anhand einer durch Figuren veranschaulichten Ausführungsform näher erläutert.The invention is described below an embodiment illustrated by figures explained in more detail.
Wie es aus den Figuren hervorgeht,
verfügt eine
Ausführungsform
eines erfindungsgemäßen Linearstellglieds
Der Motor
Die Führungsschraube
Das Innenrohr
Das Linearstellglied
Wie es aus den
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420000950 DE202004000950U1 (en) | 2004-01-22 | 2004-01-22 | Linear servo component for lifting devices like hospital beds includes a guide screw with a threaded section and a worm wheel to engage a motor shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420000950 DE202004000950U1 (en) | 2004-01-22 | 2004-01-22 | Linear servo component for lifting devices like hospital beds includes a guide screw with a threaded section and a worm wheel to engage a motor shaft |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004000950U1 true DE202004000950U1 (en) | 2004-04-01 |
Family
ID=32087820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200420000950 Expired - Lifetime DE202004000950U1 (en) | 2004-01-22 | 2004-01-22 | Linear servo component for lifting devices like hospital beds includes a guide screw with a threaded section and a worm wheel to engage a motor shaft |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202004000950U1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080273923A1 (en) * | 2007-05-03 | 2008-11-06 | Chia-Jung Wang | Telescoping rod structure for linear actuator |
EP2187097A1 (en) * | 2008-11-14 | 2010-05-19 | Nozag AG | Linear drive |
EP2194294A1 (en) * | 2008-12-05 | 2010-06-09 | Moteck Electric Corp. | Actuator for lifting device |
WO2011057632A1 (en) * | 2009-11-13 | 2011-05-19 | Linak A/S | Linear actuator |
DK178043B1 (en) * | 2004-08-20 | 2015-04-13 | Dewertokin Gmbh | Motor driven linear drive |
WO2016015731A3 (en) * | 2014-07-29 | 2016-06-02 | Linak A/S | Linear actuator |
CN110397709A (en) * | 2019-08-15 | 2019-11-01 | 泉州市杰斯特仪器设备有限公司 | A kind of servo linear driving device |
-
2004
- 2004-01-22 DE DE200420000950 patent/DE202004000950U1/en not_active Expired - Lifetime
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK178043B1 (en) * | 2004-08-20 | 2015-04-13 | Dewertokin Gmbh | Motor driven linear drive |
US8806972B2 (en) * | 2007-05-03 | 2014-08-19 | T-Motion Technology Co., Ltd. | Telescoping rod structure for linear actuator |
US20080273923A1 (en) * | 2007-05-03 | 2008-11-06 | Chia-Jung Wang | Telescoping rod structure for linear actuator |
EP2187097A1 (en) * | 2008-11-14 | 2010-05-19 | Nozag AG | Linear drive |
EP2194294A1 (en) * | 2008-12-05 | 2010-06-09 | Moteck Electric Corp. | Actuator for lifting device |
WO2011057632A1 (en) * | 2009-11-13 | 2011-05-19 | Linak A/S | Linear actuator |
JP2013510998A (en) * | 2009-11-13 | 2013-03-28 | リナック エー/エス | Linear actuator |
US8939043B2 (en) | 2009-11-13 | 2015-01-27 | Linak A/S | Linear actuator |
CN102667247A (en) * | 2009-11-13 | 2012-09-12 | 利纳克有限公司 | Linear actuator |
RU2549422C2 (en) * | 2009-11-13 | 2015-04-27 | Линак А/С | Linear actuator |
WO2016015731A3 (en) * | 2014-07-29 | 2016-06-02 | Linak A/S | Linear actuator |
CN106536984A (en) * | 2014-07-29 | 2017-03-22 | 利纳克有限公司 | Linear actuator |
EP3453919A1 (en) * | 2014-07-29 | 2019-03-13 | Linak A/S | Linear actuator |
US10432062B2 (en) | 2014-07-29 | 2019-10-01 | Linak A/S | Linear actuator |
CN110397709A (en) * | 2019-08-15 | 2019-11-01 | 泉州市杰斯特仪器设备有限公司 | A kind of servo linear driving device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20040506 |
|
R150 | Term of protection extended to 6 years |
Effective date: 20070221 |
|
R151 | Term of protection extended to 8 years |
Effective date: 20100222 |
|
R152 | Term of protection extended to 10 years |
Effective date: 20120308 |
|
R071 | Expiry of right | ||
R071 | Expiry of right |