NO20150107A1 - ELECTRICAL LINEAR ACTUATOR - Google Patents

ELECTRICAL LINEAR ACTUATOR

Info

Publication number
NO20150107A1
NO20150107A1 NO20150107A NO20150107A NO20150107A1 NO 20150107 A1 NO20150107 A1 NO 20150107A1 NO 20150107 A NO20150107 A NO 20150107A NO 20150107 A NO20150107 A NO 20150107A NO 20150107 A1 NO20150107 A1 NO 20150107A1
Authority
NO
Norway
Prior art keywords
spindle
actuator
gearbox
sleeve
angle drive
Prior art date
Application number
NO20150107A
Other languages
Norwegian (no)
Other versions
NO337035B1 (en
Inventor
Ståle Johannessen
Original Assignee
Staale Johannessen As
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 Staale Johannessen As filed Critical Staale Johannessen As
Priority to NO20150107A priority Critical patent/NO20150107A1/en
Publication of NO337035B1 publication Critical patent/NO337035B1/en
Publication of NO20150107A1 publication Critical patent/NO20150107A1/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06Means for converting reciprocating motion into rotary motion or vice versa
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20Screw mechanisms
    • F16H2025/2031Actuator casings

Description

Foreliggende oppfinnelse vedrører en lineær aktuator. Aktuatoren omdanner en roterende bevegelse mottatt fra en motor, slik som en elektromotor, til en lineær bevegelse. En slik aktuator kan ha mange bruksområder, for eksempel kan den brukes til å drive ei stempelpumpe. The present invention relates to a linear actuator. The actuator converts a rotary motion received from a motor, such as an electric motor, into a linear motion. Such an actuator can have many applications, for example it can be used to drive a piston pump.

Lineære aktuatorer finnes i en mengde utførelser. En utgave omfatter en sentral spindel som drives av en motor. Spindelen har et spiralformet spor. Utenpå spindelen ligger det en sylinder. I den indre veggen på sylinderen er det et tilsvarende spor. En eller flere kuler ligger i sporene og kobler spindelen til sylinderen. Føringer hindrer sylinderen fra å dreie seg. Når spindelen roteres vil sylinderen forflyttes lineært. Linear actuators are available in a variety of designs. One version includes a central spindle driven by a motor. The spindle has a spiral groove. Outside the spindle there is a cylinder. In the inner wall of the cylinder there is a corresponding groove. One or more balls lie in the grooves and connect the spindle to the cylinder. Guides prevent the cylinder from turning. When the spindle is rotated, the cylinder will move linearly.

I kjente aktuatorer må spindelen opplagres i begge ender. Dette kan være en ulempe i situasjoner hvor det er umulig å anordne en opplagring i den ytre enden av spindelen. In known actuators, the spindle must be stored at both ends. This can be a disadvantage in situations where it is impossible to arrange a storage at the outer end of the spindle.

Det er en hensikt med foreliggende oppfinnelse å frembringe en lineær aktuator som unngår den ovenfor nevnte ulempe, og derfor har et videre anvendelsesområde. It is an aim of the present invention to produce a linear actuator which avoids the above-mentioned disadvantage, and therefore has a wider field of application.

Dette løses med en aktuator slik det fremgår av de etterfølgende patentkrav. This is solved with an actuator, as is evident from the subsequent patent claims.

Oppfinnelsen vil nå bli beskrevet i detalj med henvisning til de vedføyde tegninger, hvor The invention will now be described in detail with reference to the attached drawings, where

Fig. 1 viser aktuatoren i langsgående snitt, Fig. 1 shows the actuator in longitudinal section,

Fig. 2 viser aktuatoren i tverrsnitt, og Fig. 2 shows the actuator in cross-section, and

Fig. 3 viser en komponent som inngår i aktuatoren. Fig. 3 shows a component included in the actuator.

Som Fig. 1 viser omfatter aktuatoren en motor 1 som driver en spindel 3 via en gearboks 2 og/eller et vinkeldrev (ikke vist). Motoren kan være enhver type som egner seg til formålet. Dette er for en stor del avhengig av hvilke kraftkilder som er tilgjengelig. Fortrinnsvis brukes en elektromotor, men aktuatoren kan også drives av pneumatiske eller hydrauliske motorer. Likeledes kan gearboksen være enhver egnet type slik som et planetgear. Aktuatoren kan også omfatte et vinkeldrev, spesielt om det er ønskelig å begrense aktuatorens dimensjoner i lengderetningen. Vinkeldrevet kan være montert mellom motoren og gearboksen, eller mellom geraboksen og spindelen 3. Funksjonene til vinkeldrevet og gearboksen kan også være kombinert i et snekkedrev. As Fig. 1 shows, the actuator comprises a motor 1 which drives a spindle 3 via a gearbox 2 and/or an angle drive (not shown). The engine can be any type suitable for the purpose. This largely depends on which power sources are available. An electric motor is preferably used, but the actuator can also be driven by pneumatic or hydraulic motors. Likewise, the gearbox can be any suitable type such as a planetary gear. The actuator can also comprise an angle drive, especially if it is desired to limit the dimensions of the actuator in the longitudinal direction. The angle drive can be mounted between the motor and the gearbox, or between the gear box and the spindle 3. The functions of the angle drive and the gearbox can also be combined in a worm drive.

I spindelen 3 er det et dobbelt spiralformet spor 6, idet sporet starter ved den ene enden av spindelen, går rundt og langs spindelen til den andre enden av spindelen, og så går tilbake til utgangspunktet med motsatt skrueretning. Sporet 6 danner således en kontinuerlig sløyfe. In the spindle 3 there is a double helical groove 6, the groove starting at one end of the spindle, going around and along the spindle to the other end of the spindle, and then returning to the starting point with the opposite screw direction. The track 6 thus forms a continuous loop.

Utenpå spindelen 3 er det plassert ei hylse 4. I veggen på hylsa 4 er det to langsgående hull 10a, 10b (Fig. 2). I hullene 10a, 10b er det satt inn to langsgående føringsstenger lia, 11b. Stengene er i en ende festet til gearboksen 2. Stengene hindrer hylsa 4 fra å rotere, dvs. at hylsa 4 bare kan bevege seg lineært i forhold til spindelen 3. A sleeve 4 is placed on the outside of the spindle 3. In the wall of the sleeve 4 there are two longitudinal holes 10a, 10b (Fig. 2). In the holes 10a, 10b, two longitudinal guide rods 11a, 11b are inserted. The rods are attached at one end to the gearbox 2. The rods prevent the sleeve 4 from rotating, i.e. that the sleeve 4 can only move linearly in relation to the spindle 3.

I et tverrgående hull 8 i veggen på hylsa 4 er det satt inn en medbringer 5. Medbringeren kan rotere i hullet 8 og holdes i hullet 8 av et lokk 12 som dekker åpningen på hullet. Medbringeren, vist i detalj i Fig. 3, omfatter et sylindrisk legeme 5a og en kniv 5b som er montert i enden av sylinderen. Kniven griper inn i sporet 6 og er utformet med en konkav egg tilpasset den runde spindelen 3. Når spindelen 3 dreies vil medbringeren 5 drive hylsa 4 med seg. Når medbringeren 5 kommer til enden av spindelen 3 (og sporet 6), vil den rotere ca. en kvart omdreining i hullet 8, og følge sporet 6 tilbake mot motsatt ende av spindelen 3. Hylsa vil på denne måten drives ut og inn i forhold til spindelen. A driver 5 is inserted in a transverse hole 8 in the wall of the sleeve 4. The driver can rotate in the hole 8 and is held in the hole 8 by a lid 12 which covers the opening of the hole. The driver, shown in detail in Fig. 3, comprises a cylindrical body 5a and a knife 5b which is mounted at the end of the cylinder. The knife engages in the slot 6 and is designed with a concave egg adapted to the round spindle 3. When the spindle 3 is turned, the driver 5 will drive the sleeve 4 with it. When the driver 5 reaches the end of the spindle 3 (and the slot 6), it will rotate approx. a quarter of a turn in the hole 8, and follow the groove 6 back towards the opposite end of the spindle 3. In this way, the sleeve will be driven out and in in relation to the spindle.

Spindelen kan også være utstyrt med bare et enkelt spiralspor, men da må The spindle can also be equipped with only a single spiral groove, but then it must

drieretningen på spindelen (dvs. motoren) omkastes når medbringeren kommer til enden av sporet for å drive hylsa i motsatt retning. Aktuatoren kan da være utstyrt med endebrytere som er innrettet til enten å stoppe motoren når medbringeren når enden av sporet, eller innrettet til å kaste om motorens dreieretning. the direction of rotation of the spindle (ie the motor) is reversed when the carrier reaches the end of the slot to drive the sleeve in the opposite direction. The actuator can then be equipped with limit switches which are arranged to either stop the motor when the carrier reaches the end of the track, or arranged to reverse the direction of rotation of the motor.

Claims (4)

1. Aktuator omfattende en roterende motor (1) som er koblet til en inngang på en gearboks (2) eller og/eller et vinkeldrev, idet en utgang av gearboksen (2) og/eller vinkeldrevet er koblet til en spindel (3), idet spindelen har et langsgående spiralformet spor (6) rundt omkretsen, hvor aktuatoren videre omfatter ei hylse (4), idet hylsa (4) ligger utenpå spindelen (3), karakterisert vedat hylsa (4) har minst et langsgående hull (10), ei stang (11) er i en ende festet til gearboksen eller vinkeldrevet og ligger inne i det langstrakte hullet (10), hvor hylsa 84) har et tverrgående hull (8), en medbringer (5) som er montert i det tverrgående hullet (8) og holdes på plass med et lokk (9) som dekker det tverrgående hullet (8), idet medbringeren (5) omfatter en sylindrisk del (5a) som kan rotere i det tverrgående hullet (8) og en kniv (5b) som griper inn i sporet (6).1. Actuator comprising a rotary motor (1) which is connected to an input on a gearbox (2) or and/or an angle drive, an output of the gearbox (2) and/or the angle drive being connected to a spindle (3), the spindle having a longitudinal spiral groove (6) around the circumference, where the actuator further comprises a sleeve (4), the sleeve (4) being located outside the spindle (3), characterized in that the sleeve (4) has at least one longitudinal hole (10), a rod (11) is attached at one end to the gearbox or angle drive and lies inside the elongated hole (10), where the sleeve 84 has a transverse hole (8) ), a driver (5) which is mounted in the transverse hole (8) and held in place by a lid (9) covering the transverse hole (8), the driver (5) comprising a cylindrical part (5a) which can rotate in the transverse hole (8) and a knife (5b) that engages in the slot (6). 2. Aktuator ifølge krav 1, hvor sporet (6) omfatter to spiralformede deler som har motsatt skrueretning og er knyttet sammen i endene og dermed danner ei endeløs sløyfe.2. Actuator according to claim 1, where the groove (6) comprises two spiral-shaped parts which have the opposite screw direction and are joined at the ends and thus form an endless loop. 3. Aktuator ifølge krav 1, hvor kniven (5b) har en konkav ytre del som er tilpasset formen på spindelen (3).3. Actuator according to claim 1, where the knife (5b) has a concave outer part which is adapted to the shape of the spindle (3). 4. Aktuator ifølge krav 1, hvor aktuatoren omfatter både en gearboks og et vinkeldrev, idet vinkeldrevet er koblet foran eller bak gearboksen.4. Actuator according to claim 1, where the actuator comprises both a gearbox and an angle drive, the angle drive being connected in front or behind the gearbox.
NO20150107A 2015-01-22 2015-01-22 ELECTRICAL LINEAR ACTUATOR NO20150107A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20150107A NO20150107A1 (en) 2015-01-22 2015-01-22 ELECTRICAL LINEAR ACTUATOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20150107A NO20150107A1 (en) 2015-01-22 2015-01-22 ELECTRICAL LINEAR ACTUATOR

Publications (2)

Publication Number Publication Date
NO337035B1 NO337035B1 (en) 2016-01-04
NO20150107A1 true NO20150107A1 (en) 2016-01-04

Family

ID=61800202

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20150107A NO20150107A1 (en) 2015-01-22 2015-01-22 ELECTRICAL LINEAR ACTUATOR

Country Status (1)

Country Link
NO (1) NO20150107A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510459C2 (en) * 1996-03-26 1999-05-25 Linvent Ab Geared power unit for linear movement
DK2232100T3 (en) * 2008-01-12 2013-01-02 Linak As LINEAR ACTUATOR
DK2232101T3 (en) * 2008-01-12 2013-02-11 Linak As Linear actuator
US20140300228A1 (en) * 2013-04-05 2014-10-09 Festo Ag & Co. Kg Linear Actuator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510459C2 (en) * 1996-03-26 1999-05-25 Linvent Ab Geared power unit for linear movement
DK2232100T3 (en) * 2008-01-12 2013-01-02 Linak As LINEAR ACTUATOR
DK2232101T3 (en) * 2008-01-12 2013-02-11 Linak As Linear actuator
US20140300228A1 (en) * 2013-04-05 2014-10-09 Festo Ag & Co. Kg Linear Actuator

Also Published As

Publication number Publication date
NO337035B1 (en) 2016-01-04

Similar Documents

Publication Publication Date Title
US9677651B2 (en) Linear actuator
US9341432B1 (en) Drawstring cocking assembly
EP2650519A3 (en) Thrust reverser actuator with primary lock
US9222557B2 (en) Dual-screw linear actuator
JP2012518132A5 (en)
EP2907682A3 (en) Combination linear and rotary actuator
JP2011524193A5 (en)
DE502008000112D1 (en) Bevel gear units, in particular bevel helical gear units
EP1959163A3 (en) Linear actuator
EP2770218A3 (en) A self-contained electro-hydraulic bidirectional rotary actuator unit
EP4039197A3 (en) Endoscopic stitching device
WO2015016714A3 (en) A clean-out tool for cleaning out a well bore and a method for cleaning out a well bore using such a clean-out tool
CN104842423A (en) Rod-shaped material rotary cutting mechanism
EP3159577A3 (en) Actuator
ATE509553T1 (en) ROTARY DRIVE
RU2014153632A (en) LOCK AND ITS ROTARY SHUTTER
MX2018014815A (en) Gearbox assembly and headrest driver comprising same.
NO20150107A1 (en) ELECTRICAL LINEAR ACTUATOR
RU2016121155A (en) DEVICE FOR CHANGING THE DIRECTION OF THE ROTOR BLADE BLADES
RU2017134649A (en) LOCK HOUSING
US10634226B2 (en) Modular electric linear actuator facilitating assembly and disassembly
CN106895042A (en) A kind of cylinder structure that have straight-line displacement and rotary motion concurrently and can manipulate respectively
RU2017124813A (en) DRIVE PUMP DRIVE
CN105305719A (en) Worm transmission mechanism
CN204476915U (en) A kind of half-separation type swing cylinder

Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees