WO2007012532A1 - Couplage de raccordement et moteur a engrenages utilisant ledit couplage - Google Patents

Couplage de raccordement et moteur a engrenages utilisant ledit couplage Download PDF

Info

Publication number
WO2007012532A1
WO2007012532A1 PCT/EP2006/063557 EP2006063557W WO2007012532A1 WO 2007012532 A1 WO2007012532 A1 WO 2007012532A1 EP 2006063557 W EP2006063557 W EP 2006063557W WO 2007012532 A1 WO2007012532 A1 WO 2007012532A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
motor
shaft
shaped body
reduction gear
Prior art date
Application number
PCT/EP2006/063557
Other languages
English (en)
Inventor
Francesco Battistella
Original Assignee
Amer S.P.A.
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 Amer S.P.A. filed Critical Amer S.P.A.
Publication of WO2007012532A1 publication Critical patent/WO2007012532A1/fr

Links

Classifications

    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D2001/062—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end characterised by adaptors where hub bores being larger than the shaft

Definitions

  • the invention concerns a connection coupling between the shaft of a motor and the input shaft of a reduction gear.
  • the invention concerns also a gear motor that uses said coupling.
  • gear motors that combine a motor and a reduction gear in a single frame, with the purpose of providing power units having reduced dimensions and differentiated torques according to the user's needs.
  • the output shaft of the reduction gear is connected to the object to be set in motion, while the input shaft is connected to the motor shaft from which it receives the torque via the interposition of connection means.
  • connection means between the drive shaft of the motor and the input shaft of the reduction gear consist of a coupling with suitably shaped parts for connecting the two shafts.
  • each shaft is coupled to one shaped part of the coupling and is secured in that position through, for example, fastening pins, screw means or weldings whose function is to prevent the detachment of the motor from the reduction gear.
  • connection coupling between the two shafts must be made of a particularly resistant material, capable of transmitting the torque from the motor to the reduction gear without deformation and risks of breakages.
  • a further inconvenience, deriving from the previous one, is represented by the fact that the use of this type of coupling makes the gear motors more complex to assemble.
  • a further drawback is constituted by the fact that the couplings of this type involve greater problems related to the reliability of the gear motors, due to the greater number of components needed to make them.
  • the aim of the present invention is to overcome all the drawbacks described.
  • a first aim of the present invention is to carry out a connection coupling to be positioned between the drive shaft of a motor and the input shaft of a reduction gear that, though allowing a reduction in the overall dimensions of the gear motor, is less complex to construct than the equivalent couplings belonging to the known art.
  • connection coupling to be positioned between the drive shaft of a motor and the input shaft of a reduction gear, making gear motors easier to assemble compared to the known gear motors belonging to the known art.
  • a further equally important aim of the present invention is to carry out a connection coupling to be positioned between the drive shaft of a motor and the input shaft of a reduction gear that makes it possible to obtain more reliable reduction gears compared to equivalent products.
  • connection coupling to be positioned between the shaft of a motor and the input shaft of a gear motor that, according to the contents of the main claim, is characterized in that it comprises a single shaped body suited to be housed in a seat made in said shaft of said motor and in which it is possible to identify a shaped hole suited to house a tang belonging to said input shaft of said reduction gear, wherein said shaped body inside said seat and said tang inside said shaped hole mutually cooperate through one or more counteracting surfaces for the transmission of the torque from said motor to said reduction gear.
  • a gear motor of the type comprising a motor and a reduction gear connected through a coupling
  • said gear motor is characterized in that said coupling comprises a single shaped body suited to be housed in seat made in the shaft of said motor and in which it is possible to identify a shaped hole suited to house a tang belonging to the input shaft of said reduction gear, wherein said shaped body inside said seat and said tang inside said shaped hole mutually cooperate through one or more counteracting surfaces for the transmission of the torque from said motor to said reduction gear.
  • the shaped hole and the tang, as well as the shaped body and the seat have matching, substantially rectangular profiles that comprise the counteracting surfaces.
  • the latter are constituted by two flat surfaces opposing each other, included between two curved surfaces to define said rectangular profiles.
  • the shaped body is provided, at its end facing the reduction gear, with an annular collar whose diameter is greater than the diameter of the motor shaft, in order to create an axial stop element for containing a rolling bearing coupled to the motor shaft at the level of the seat.
  • the seat has the shape of a fork.
  • the profile defined by the shaped hole of the coupling and by the tang of the reduction gear input shaft, as well as the profile defined by the shaped body of the coupling and by the seat present in the motor shaft, are defined by opposing flat surfaces, they create the counteracting surfaces necessary for the transmission of the torque from the motor shaft to the input shaft of the reduction gear.
  • the coupling houses the tang of the input shaft of the reduction gear and fits in the seat made in the motor shaft, the motor shaft is at least partially penetrated by the tang of the input shaft of the reduction gear, through the interposition of the coupling itself, and this reduces the axial dimensions of the gear motor in its whole.
  • the presence of the rolling bearing, externally coupled to the motor shaft at the level of the seat of the coupling makes it possible to constrain the coupling to the seat with no need to add pins or screw means or with no need to make weldings, as it happens with the known gear motors.
  • the coupling carried out according to the invention is made in a single piece, the gear motor in which it is used is less difficult to construct and to assemble and more reliable compared to the equivalent gear motors belonging to the known art.
  • FIG. 1 is an exploded view of a detail of a gear motor including the coupling that is the subject of the invention
  • the coupling subject of the invention is shown in Figure 1 , where it is indicated by 1 and where it can be observed that it connects the shaft A of a motor M to the input shaft I of a reduction gear R.
  • the invention is constituted by a single shaped body 2 in which it is possible to identify a shaped hole 3.
  • the shaped hole 3 houses a tang 4 belonging to the input shaft I of the reduction gear R, while the shaped body 2 is housed in a seat 5 made in the shaft A of the motor M.
  • the shaped body 2 inside the seat 5 and the tang 4 inside the shaped hole 3 mutually cooperate through pairs of counteracting surfaces 8, 9 and 10, 11 for the transmission of the torque from the motor M to the reduction gear R.
  • the shaped body 2 and the seat 5, as well as the shaped body 3 and the tang 4 have matching, substantially rectangular profiles comprising the counteracting surfaces 8, 9 and 10, 11 , respectively.
  • the profile between the shaped body 2 and the seat 5 comprises two opposite flat surfaces that make up the counteracting surfaces 8 and 9 and are included between two curved surfaces
  • the profile between the shaped hole 3 and the tang 4 comprises two opposite flat surfaces that make up the counteracting surfaces 10 and 11 and are included between two curved surfaces 14 and 15.
  • the seat 5 As to the seat 5 present in the drive shaft A of the motor M, it has the shape of a fork.
  • the shaped body 2 of the coupling 1 subject of the invention has an annular collar 21 with diameter greater than the diameter of the shaft A of the motor M, positioned at the end 20 of the shaped body 2 facing the reduction gear R.
  • Said annular collar 21 constitutes an axial stop surface for a rolling bearing 22 having the inner ring 23 externally coupled to the shaft A of the motor M at the level of the seat 5.
  • the diameter of the inner ring 23 is greater than the diameter of the drive shaft A and shorter than the diameter of the collar 21.
  • the rolling bearing 21 prevents the shaped body 2 of the coupling 1 from coming off the fork that makes up the seat 5.
  • the gear motor using the coupling subject of the invention needs no pins, screw means or weldings to maintain the connection between motor and reduction gear.
  • this embodiment of the invention is described only as an example, and does not represent a limitation for other possible embodiments where, for instance, the seat is a hole and therefore it is not necessary for the bearing to act also as an element that constrains the shaped body in the seat.
  • the coupling 1 is made with plastic materials of known type, which dampen the vibrations generated by the gear motor during operation.
  • the subject of the invention includes also a gear motor
  • connection coupling 1 constituted by a single shaped body 2, and the rolling bearing 22 are the only two elements used to connect the motor M with the reduction gear R. According to the above, the connection coupling that is the subject of the invention achieves all the set aims.
  • the coupling subject of the invention achieves the aim to connect the shaft of a motor and the input shaft of a reduction gear, ensuring a reduction in the overall dimensions of the gear motor; being constituted by a single shaped body, the coupling is also easier to construct compared to the equivalent couplings belonging to the known art.
  • the invention also achieves the aim to carry out a connection coupling to be positioned between the shaft of a motor and the input shaft of a reduction gear that simplifies the assembly of gear motors. Finally, the invention also achieves the aim to carry out a connection coupling to be positioned between the shaft of a motor and the input shaft of a reduction gear that makes the gear motor more reliable than equivalent products.
  • connection coupling that is the subject of the invention may be carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

Couplage de raccordement (1) pour l'arbre (A) d'un moteur (M) et l'arbre d'entrée (I) d'un engrenage de réduction (R). Il est constitué par un corps formé unique (2) adéquat pour être logé dans une assise (5) faite dans l'arbre (A) du moteur (M) et dans lequel il est possible d'identifier un trou formé (3) adéquat pour loger un tenon (4) appartenant à l'arbre d'entrée (I) de l'engrenage de réduction (R). Le corps formé (2) à l'intérieur de l'assise (5) et le tenon (4) à l'intérieur du trou formé (3) coopèrent mutuellement grâce à une ou plusieurs surfaces d'amortissement (8, 9, 10, 11) pour la transmission du couple du moteur (M) à l'engrenage de réduction (R).
PCT/EP2006/063557 2005-07-26 2006-06-26 Couplage de raccordement et moteur a engrenages utilisant ledit couplage WO2007012532A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI20050209 ITVI20050209A1 (it) 2005-07-26 2005-07-26 Giunto di collegamento e motoriduttore utilizzante tale giunto
ITVI2005A000209 2005-07-26

Publications (1)

Publication Number Publication Date
WO2007012532A1 true WO2007012532A1 (fr) 2007-02-01

Family

ID=36979789

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/063557 WO2007012532A1 (fr) 2005-07-26 2006-06-26 Couplage de raccordement et moteur a engrenages utilisant ledit couplage

Country Status (2)

Country Link
IT (1) ITVI20050209A1 (fr)
WO (1) WO2007012532A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152631A (en) * 1990-11-29 1992-10-06 Andreas Stihl Positive-engaging coupling for a portable handheld tool
US5568704A (en) * 1995-03-24 1996-10-29 Gmi Holdings, Inc. Clutchless screw drive door operator
WO2004035997A1 (fr) * 2002-10-17 2004-04-29 Ina-Schaeffler Kg Dispositif de reglage d'arbre a cames a entrainement electrique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152631A (en) * 1990-11-29 1992-10-06 Andreas Stihl Positive-engaging coupling for a portable handheld tool
US5568704A (en) * 1995-03-24 1996-10-29 Gmi Holdings, Inc. Clutchless screw drive door operator
WO2004035997A1 (fr) * 2002-10-17 2004-04-29 Ina-Schaeffler Kg Dispositif de reglage d'arbre a cames a entrainement electrique

Also Published As

Publication number Publication date
ITVI20050209A1 (it) 2007-01-27

Similar Documents

Publication Publication Date Title
US9435400B2 (en) Drive unit
US5284455A (en) Shaft coupling having multiple rib connectors
CA2418480A1 (fr) Manchons de fixation d'axe pour ensemble pompe submersible
US9903462B2 (en) Planetary gear transmission
AU595900B2 (en) Electromagnetic clutch
US20050081662A1 (en) Modular transmission
US20030131677A1 (en) Hypoid reducing device
EP2221509A3 (fr) Transmission de véhicule à moteur
EP1437253A3 (fr) Fourchette d'articulation avec flasque, supportée sur un arbre cannelé
WO2007012532A1 (fr) Couplage de raccordement et moteur a engrenages utilisant ledit couplage
US20060183558A1 (en) Driveshaft coupling
EP1129301B1 (fr) Raccord elastomere ameliore a moyeux a surface cylindrique
EP0947729A1 (fr) Réducteur à vis sans fin et engrenage hélicoidal
US20170299035A1 (en) Differential device
US6397992B1 (en) Inner hub for clutch/brake
EP1103407A3 (fr) Unité de prise de force avec roue dentée de sortie en deux pièces
JP2003130141A (ja) ハイポイド減速機のシリーズ、及びハイポイドギヤドモータのシリーズ
US4753130A (en) Transmission with interchangeable shafts to link one or more drives with one or more output shafts
JP2009085284A (ja) ピン連結構造及びそれを有する変速機の操作装置
US11701768B2 (en) Electric power tool
JP2697764B2 (ja) 自在軸継手
EP1025371A4 (fr) Piece d'accouplement elastomere a sabot composite
UA81444C2 (en) Shaft coupling unit
JP4214762B2 (ja) トルク伝達具の組み付け方法
US20050126323A1 (en) Hypoid geared motor and connection structure between motor pinion and hypoid pinion

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06763892

Country of ref document: EP

Kind code of ref document: A1