IT8224885A1 - Improvements related to rotary actuators - Google Patents
Improvements related to rotary actuators Download PDFInfo
- Publication number
- IT8224885A1 IT8224885A1 IT1982A24885A IT2488582A IT8224885A1 IT 8224885 A1 IT8224885 A1 IT 8224885A1 IT 1982A24885 A IT1982A24885 A IT 1982A24885A IT 2488582 A IT2488582 A IT 2488582A IT 8224885 A1 IT8224885 A1 IT 8224885A1
- Authority
- IT
- Italy
- Prior art keywords
- piston
- cylinder
- connecting rod
- shaft
- away
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/068—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the helical type
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/24—Nozzles specially adapted for fire-extinguishing attached to ladders, poles, towers, or other structures with or without rotary heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
Description
D E S C R I Z I O N E DESCRIPTION
dell?invenzione industriale dal titolo: of the industrial invention entitled:
"Perfezionamenti relativi ad azionatori ruotanti", "Improvements relating to rotary actuators",
RIASSUNTO SUMMARY
Un azionatore ruotante comprende un cilindro (12) con un coperchio d'estremit? sagomato a scodellino (15) e un pistone anulare scanalato internamente (11) con una biella (16) avente denti inclinati elicoidalmente (19) sulla sua superficie esterna. I denti (19) sono impegnati mediante un dado (14) fissato al cilindro, e le scanalature interne (23) del pistone sono impegnate d? un albero scanalato (20). che sporge da una estremit? del cilindro e che costituisce l'albero di uscita. L'estremit? della biella (16) lontana dal pistone ? chiusa a tenuta tramite un elemento a tappo (17) e un passaggio (31) attraverso il pistone pone l'interno della biella in comunicazione permanentemente aperta con lo spazio del cilindro in corrispondenza del lato opposto del pistone* Fluido pressurizzato pu? essere alimentato all'uno o all'altro lato del pistone e, quando il pistone si muove assialmente, esso ? costretto a ruotare dal dado (14), la rotazione essendo trasmessa all'albero di uscita attraverso il collegamento scanalato. A rotary actuator comprises a cylinder (12) with an end cover. cup shaped (15) and an internally splined annular piston (11) with a connecting rod (16) having helically inclined teeth (19) on its outer surface. The teeth (19) are engaged by means of a nut (14) fixed to the cylinder, and the internal grooves (23) of the piston are engaged d? a splined shaft (20). that protrudes from one end? of the cylinder and which constitutes the output shaft. The end? of the connecting rod (16) away from the piston? sealed by a plug element (17) and a passage (31) through the piston places the inside of the connecting rod in permanently open communication with the space of the cylinder at the opposite side of the piston * Pressurized fluid pu? be fed to either side of the piston and, as the piston moves axially, it? forced to rotate by the nut (14), the rotation being transmitted to the output shaft through the splined connection.
DESCRIZIONE DESCRIPTION
La presente invenzione riguarda azionatori ruotanti e ha una applicazione particolarmente utile ma non esclusiva nell'azionamento di un dispositivo di sorveglianza-controllo a distanza in applicazioni antincendio. The present invention relates to rotary actuators and has a particularly useful but not exclusive application in the operation of a remote monitoring-control device in fire-fighting applications.
Secondo la presente invenzione ? fornito un azionatore ruotante comprendente un pistone avente una biella la cui superficie esterna ? formata con una o pi? nervature e/o gole elicoidali, un cilindro in cui il pistone ? montato scorrevolmente e il quale racchiude completamente il pistone e la biella, un dado fissato relativamente al cilindro e impegnato con la nervatura o nervature e/o la gola o gole elicoidali sul pistone, un albero montato in un cuscinetto in corrispondenza dell'estremit? del cilindro lontana dalla biella per ruotare coassialmente col pistone, detto albero avendo una estremit? di esso sporgente dal cilindro e avendo la sua altra porzione d'estremit? in impegno scanalato con il pistone per l'intera estensione assiale del movimento scorrevole del pistone, e mezzi tramite i quali fluido di pressione pu? essere alimentato allo spazio del cilindro in corrispondenza di ciascun lato del pistone. According to the present invention? provided a rotary actuator comprising a piston having a connecting rod whose outer surface? formed with one or more? ribs and / or helical grooves, a cylinder in which the piston? slidably mounted and which completely encloses the piston and connecting rod, a nut fixed relative to the cylinder and engaged with the rib or ribs and / or the helical groove or grooves on the piston, a shaft mounted in a bearing at the end of the cylinder away from the connecting rod to rotate coaxially with the piston, said shaft having one end? of it protruding from the cylinder and having its other end portion? in slotted engagement with the piston for the entire axial extent of sliding movement of the piston, and means by which fluid of pressure can be fed to the cylinder space at each side of the piston.
Secondo una caratteristica preferita dell'invenzione , la biella ? cava e accoglie qualsiasi porzione dell'albero sporgente assialmente oltre le scanalature durante il movimento assiale del pistone e l'interno cavo del pistone ? chiuso a tenuta dallo spazio del cilindro circondante la biella ma ? in comunicazione permanentemente aperta con lo spazio del cilindro in corrispondenza del lato del pistone lontano dalla biella. According to a preferred feature of the invention, the connecting rod? hollows out and accommodates any portion of the shaft projecting axially beyond the grooves during axial movement of the piston and the hollow interior of the piston? sealed by the space of the cylinder surrounding the connecting rod but? in permanently open communication with the cylinder space at the side of the piston away from the connecting rod.
Sar? ora descritta una forma di realizzazione dell 'invenzione facendo riferimento al disegno accluso il quale rappresenta, in sezione assiale, unbzionatore ruotante secondo 1'invenzione. Sar? now described an embodiment of the invention with reference to the enclosed drawing which represents, in axial section, a rotary disconnector according to the invention.
Facendo riferimento al disegno, l'azionatore ? un azionatore idraulico includente un cilindro 10 ed un pistone 11. Il cilindro comprende un corpo principale 12 avente un primo capellotto d'estremit? anulare 13 fissato ad una estremit? di esso, e un dado 14 ed un secondo cappellotto d'estremit? anulare di forma a scodellino 15 fissato all1altra estremit?. Il pistone ha una biella cava la cui estremit? lontana dal pistone ? chiusa a tenuta mediante un elemento a tappo 17 avvitato nella biella e supportante un bullone d'arresto 18. La superficie esterna della biella ha una pluralit? di nervature o costolature elicoidali 19 che sono impegnate in gole complementari nel dado 14, in modo tale che il movimento assiale del pistone fa s? che il pistone e la biella abbiano a ruotare. L'angolo di rotazione pu? essere variato o variando la lunghezza della forma del filetto sul pistone oppure sostituendo il bullone d'arresto 18 con un bullone pi? lungo. Nell'esempio particolare illustrato, la lunghezza e l'angolo d'elica delle nervature o costolature elicoidali sono tali che il pistone ruota per due giri completi (720?) nello spostarsi da una estremit? all'altra della sua escursione assiale. La biella 16 ? racchiusa dal coperchio d'estremit? di forma a scodellino 15. Referring to the drawing, the actuator? a hydraulic actuator including a cylinder 10 and a piston 11. The cylinder comprises a main body 12 having a first end cap. ring finger 13 fixed at one end? of it, and a nut 14 and a second end cap? cup-shaped ring finger 15 fixed at the other end. The piston has a hollow connecting rod whose end? far from the piston? sealed by a plug element 17 screwed into the connecting rod and supporting a stop bolt 18. The outer surface of the connecting rod has a plurality of elements. of helical ribs or ribs 19 which are engaged in complementary grooves in the nut 14, so that the axial movement of the piston causes s? that the piston and the connecting rod rotate. The angle of rotation can? be varied or by varying the length of the shape of the thread on the piston or by replacing the stop bolt 18 with a bolt pi? long. In the particular example illustrated, the length and helix angle of the helical ribs or ribs are such that the piston rotates for two full revolutions (720?) As it moves from one end. to the other of its axial excursion. The connecting rod 16? enclosed by the end cover? cup-shaped 15.
Un albero di uscita 20 ? montato coassialmente con il pistone in un cuscinetto 22 nel coperchio d'estremit? 13 e ha una porzione d'estremit? sporgente dal cilindro. L'altra porzione d'estremit? dell'albero ? scanalata lungo la sua intera lunghezza entro il cilindro e si estende per tutta la lunghezza del cilindro, ed ? in impegno scanalato con una formazione complementare indicata da 23 nel pistone. In tal modo il movimento rotazionale del pistone 11 viene trasmesso all'albero di uscita 20. Una nervatura anulare 24 sull'albero ? disposta in una rientranza sulla faccia interna del coperchio d'estremit? 13 ed un anello elastico 25 impegnato in una gola nella cavit? posiziona la nervatura assialmente fra esso stesso e il fondo della cavit? o rientranza per riprendere le piccole spinte assiali sull'albero risultanti dall'attrito nel collegamento scanalato e dalla pressione del fluido agente sulla faccia d'estremit? interna dell'albero. An output shaft 20? mounted coaxially with the piston in a bearing 22 in the end cover? 13 and has an end portion? protruding from the cylinder. The other end portion? of the tree? grooved along its entire length within the cylinder and extends the entire length of the cylinder, and d? in splined engagement with a complementary formation indicated by 23 in the piston. Thus the rotational movement of the piston 11 is transmitted to the output shaft 20. An annular rib 24 on the shaft? arranged in a recess on the inner face of the end cover 13 and an elastic ring 25 engaged in a groove in the cavity? positions the rib axially between itself and the bottom of the cavity? or recess to resume the small axial thrusts on the shaft resulting from the friction in the splined connection and from the pressure of the fluid acting on the end face? internal shaft.
Un primo e secondo punti di collegamento 26, 27 per l'alimentazione di fluido di pressione a lati opposti del pistone sono rispettivamente formati nei due coperchi d'estremit? 13, 15? Il punto di collegamento 26 conduce attraverso un corto passaggio assiale allo spazio del cilindro 29 in corrispondenza di un lato del pistone. Il punto di collegamento 27 conduce attraverso un passaggio radiale 29 all'interno della formazione a scodellino, ed un passaggio di trasferimento 30 si estende assialmente attraverso il dado allo spazio del cilindro in corrispondenza dell'altro lato del pistone. Un passaggio 31 si estende at First and second connection points 26, 27 for supplying pressure fluid to opposite sides of the piston are respectively formed in the two end covers. 13, 15? The connection point 26 leads through a short axial passage to the space of the cylinder 29 at one side of the piston. The connection point 27 leads through a radial passage 29 within the cup formation, and a transfer passage 30 extends axially through the nut to the cylinder space at the other side of the piston. A passage 31 extends to t
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8138839 | 1981-12-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8224885A0 IT8224885A0 (en) | 1982-12-21 |
IT8224885A1 true IT8224885A1 (en) | 1984-06-21 |
IT1155039B IT1155039B (en) | 1987-01-21 |
Family
ID=10526825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT24885/82A IT1155039B (en) | 1981-12-23 | 1982-12-21 | IMPROVEMENTS RELATING TO ROTATING ACTUATORS |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3246977A1 (en) |
FR (1) | FR2518414A1 (en) |
GB (1) | GB2113764A (en) |
IT (1) | IT1155039B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2182721A (en) * | 1985-11-09 | 1987-05-20 | Hytork Actuators Ltd | Improvements in or relating to fluid-pressure-operated actuators |
DE3639121A1 (en) * | 1986-11-15 | 1988-05-19 | Hausherr & Soehne Rudolf | Device for converting a stroke movement into a rotary movement |
DE3706121A1 (en) * | 1987-02-25 | 1988-09-08 | Wolf Woco & Co Franz J | Actuating drive |
GB2299562A (en) * | 1995-04-01 | 1996-10-09 | Nigel Howard Mckrill | Actuator for helicopter rotor blade aileron |
DE102015209725A1 (en) * | 2015-05-27 | 2016-12-01 | Nussbaum Technologies Gmbh | Hydraulically operated barrier |
CN110273938A (en) * | 2018-03-16 | 2019-09-24 | 西安博贤机电设备有限公司 | A kind of annular axis clutch cylinder |
CN109676364B (en) * | 2019-03-06 | 2024-04-02 | 成都华川电装有限责任公司 | Screw assembling device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1229392B (en) * | 1959-06-03 | 1966-11-24 | Pleiger Maschf Paul | Hydraulic swivel drive for left and right rotation with limited angle of rotation |
GB1055694A (en) * | 1964-06-04 | 1967-01-18 | Inst Schiffbautechnik Wolgast | Swivel device |
US3977305A (en) * | 1971-09-13 | 1976-08-31 | C.O. Hansen Maskinfabrik Af 1970 A/S | Operating mechanism for turning an axle end |
FR2455201A1 (en) * | 1979-04-27 | 1980-11-21 | Renault | Rotating hydraulic cylinder - is located between bearings and has splined piston and side connections for hydraulic fluid |
-
1982
- 1982-12-08 GB GB08234988A patent/GB2113764A/en not_active Withdrawn
- 1982-12-18 DE DE19823246977 patent/DE3246977A1/en not_active Withdrawn
- 1982-12-21 IT IT24885/82A patent/IT1155039B/en active
- 1982-12-22 FR FR8221594A patent/FR2518414A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
IT1155039B (en) | 1987-01-21 |
GB2113764A (en) | 1983-08-10 |
FR2518414A1 (en) | 1983-06-24 |
IT8224885A0 (en) | 1982-12-21 |
DE3246977A1 (en) | 1983-06-30 |
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