US3673885A - Series of gear speed reducers - Google Patents

Series of gear speed reducers Download PDF

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Publication number
US3673885A
US3673885A US94439A US3673885DA US3673885A US 3673885 A US3673885 A US 3673885A US 94439 A US94439 A US 94439A US 3673885D A US3673885D A US 3673885DA US 3673885 A US3673885 A US 3673885A
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United States
Prior art keywords
series
reducers
characteristic
reducer
center distance
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Expired - Lifetime
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US94439A
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English (en)
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David Hansen
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Machinery and Gears Hansen NV
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Machinery and Gears Hansen NV
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    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/033—Series gearboxes, e.g. gearboxes based on the same design being available in different sizes or gearboxes using a combination of several standardised units
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/033—Series gearboxes, e.g. gearboxes based on the same design being available in different sizes or gearboxes using a combination of several standardised units
    • F16H2057/0335—Series transmissions of modular design, e.g. providing for different transmission ratios or power ranges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19679—Spur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2186—Gear casings

Definitions

  • the invention relates to a Series gear Speed reducers with at least n unequal center distances in increasing order, the ab- [52] US. Cl. ..74/421 R, 74/325 solute values of the las center distance of each speed reducer [51] Int. Cl r ..Fl6h 1/20, Fl6h 3/08 in the series, i.e. of the specific center distances, form an im- [58] Field of Search ..74/4l2 R, 42] R, 325 proper geometric progression of which the successive values of the ratio form a geometric progression.
  • Each reducer consists mainly of a housing and of gear sets.
  • the problem of execution consists of imagining a solution, within the above mentioned options, which enables an optimal use of the same housings and the same gear sets in a maximum number of valid combinations, i.e. combinations which meet practical requirements, the reducers having in none of the many combinations components which are needlessly overdimensioned with respect to one another.
  • the series has to be conceived in such a way that, although it consists of prefabricated material, each reducer closely approximates that, which would have been adopted if each case had been calculated separately.
  • the series of gear speed reducers is therefore characterized by very particular rules, on the one hand for the. establishment of a series of center distances and in the framework of options of a manufacturing nature the spacing of the sizes of the gears suitable to the series considered; and, on the other hand for the judicious choice, in this spacing, of the center distances and thus of the gears for each size of reducer in the given serres.
  • the specific center distance of a speed reducer can be the first or second center distance of other reducers in the series, so that the number of center distance'swith different absolute values, may be very close to the number of reducers in the given series, without being less.
  • the series of gear speed reducers is essentially characterized by the fact that the absolute values of the last center distance of each reducer in the series or specific center distance constitute an improper geometric progression, the successive values of whose ratio constitute a proper geometric progression.
  • each reducer of the series comprises gear sets such that the values of all prima'ry and overall reduction ratios of said reducers are part of the same geometric progression.
  • FIGS. 1 to 10 show, schematically and as a front view, the successive reducers of the series considered
  • FIG. 11 represents a table giving the selection of the specific center distances in the execution considered
  • FIG. 12 represents schematically and in perspective, a gear speed reducer with parallel input and output shafts
  • FIG. 13 represents schematically and in perspective, a gear speed reducer with perpendicular input and output shafts
  • FIG. 14 represents schemafically and in perspective, a gear speed reducer with a built-on motor, whose axis constitutes the primary axis of the reducer.
  • the series comprises reducers only with helical gears and three unequal center distances of increasing size, the third center distance being called the specific center distance.
  • the number n of reducers A, B, C, D, E, F, G, H, K, L (FIGS. 1 to 10) in the series equals 10, whereas the number of different center distances of the series in question is n 2 12, designated by the series a a a,, a a a a
  • the number of specific center distances also equals 10 and each of the specific center distances i.e. a to a,,,, may be found as a first, a second or a third center distance in the reducers of the series.
  • the center distances a to 0 are used respectively 1, 3, 3, 4, 5, 3, 4, 2, 2, l, I, and l times, which means that there are some 30 center distances obtained from 1 2 different center distances.
  • the absolute values of the ten specific center distances a up to a in the series of the ten gear speed reducers may be considered to form a geometric progression in which the common ratio h is itself a variable, i.e. an improper geometric progression, and the successive values of h constitute a proper geometric progression, whose constant ratio is equal to p.
  • the values a,h and p are calculated in function of the characteristic torques of the different sizes, which lies in the sphere of any qualified person familiar with the manufacture and the sale of gear speed reducers.
  • the series of center distances a to a is represented as follows, taking into consideration that a, is any given center distance of the series in question:
  • variable common ratios h it is represented as follows, taking into consideration that h, is any given variable common ratio in the series:
  • the characteristic torques of the successive sizes are chosen in such a way that they equal the characteristic torques of the last center distance of the reducer, i.e. of the specific center distance. Moreover, the utmost has been done to bring close together the torques, calculated in function of surface durability and of strength, establishing however the fact that the characteristic torque is determined by the calculation of the surface durability.
  • the characteristic torque T calculated according to a given process of calculation (in the example, the process put forward by A.G.M.A. American Gear Manu facturers Association) may be expressed by the relationship;
  • T K a b" 9 in which If is a constant exponent for all characteristic torques, being function of the raw material, the reduction ratio and the rotational speed of the secondary shaft; a is the center distance, b indicates the face width of the gears, f and g are constant numbers.
  • the characteristic torque T of any given specific center distance a, may be written, according to the relationships (8) and (9):
  • the series of characteristic torques T may be written as follows; taking in consideration that 7 ⁇ is any given characteristic torque taken from the series T up to T,,:
  • variable ratios k is, as is also series (2), a geometric progression.
  • the series of variable ratios k is expressed as follows, taking into consideration that k, represents any given ratio from the Taking the relationship (16) into consideration, one can Combining the series of the torques T (11) and of the ratio lo (16), one obtains:
  • the ratio k which is the relationship between two successive characteristic torques, thus varies by application of what precedes in a continuous and known way from one extwo center distances, selected from the series of specific center distances, shown above.
  • the permissible capacities of the incorporated gear sets can be compared to one Heme value to the other one another and the most economical speed reducer will naturally be obtained, when the various characteristic capacities are as By choosing values 2 and m the Senes Ofk close as possible to one another and aim towards equality. lnz i 29 21 ht h T T k d deed, in this case, one avoids as much as possible, that one mm re a ons m w c 1 an are gear set should be overdimensioned in regard of the other one.
  • the gears I f used in center distances, other than the specific center 8 distance, will be chosen from the series of specific center the gs (8) (9) and 10) become respecnvely: distances.
  • the table of FIG. 11 illustrates the application of what precedes.
  • each order number corresponds naturally a term in the series R 20 and consequently a reduction ratio.
  • the table on page 19 gives the relation: order number reduction ratio, for the ratios from 1 to 100.
  • speed reducers which, thanks to a relatively small number of different parts, enable not only a maximum number of combinations, but also such combinations as to meet almost all required applications with middle-sized speed reducers, with a harmoniously spread range of reduction ratios, being amply dimensioned, and showing no unnecessary overdimensioning of the components in a reducer with respect to one another.
  • each gear speed reducer being part of a series of reducers, according to claim 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)
  • Control Of Transmission Device (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Saccharide Compounds (AREA)
US94439A 1970-03-11 1970-12-02 Series of gear speed reducers Expired - Lifetime US3673885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE49971 1970-03-11

Publications (1)

Publication Number Publication Date
US3673885A true US3673885A (en) 1972-07-04

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US94439A Expired - Lifetime US3673885A (en) 1970-03-11 1970-12-02 Series of gear speed reducers

Country Status (24)

Country Link
US (1) US3673885A (xx)
JP (1) JPS5544250B1 (xx)
AT (1) AT309937B (xx)
BE (1) BE747171A (xx)
BG (1) BG29575A3 (xx)
CA (1) CA940742A (xx)
CH (1) CH541745A (xx)
DE (1) DE2061021C3 (xx)
EG (1) EG10451A (xx)
ES (1) ES387118A1 (xx)
FI (1) FI56581C (xx)
FR (1) FR2083822A5 (xx)
GB (1) GB1338610A (xx)
IE (1) IE35008B1 (xx)
IL (1) IL35783A (xx)
LU (1) LU62678A1 (xx)
MY (1) MY7400267A (xx)
NL (1) NL148691B (xx)
NO (1) NO150331C (xx)
OA (1) OA03611A (xx)
PH (1) PH11473A (xx)
TR (1) TR16895A (xx)
YU (1) YU44071A (xx)
ZA (1) ZA708120B (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943788A (en) * 1973-08-22 1976-03-16 Firma Zahnraderfabrik Renk Aktiengesellschaft Planar gear train
US5067361A (en) * 1990-04-14 1991-11-26 Sepp Lachenmaier Transmission series
EP1045169A2 (de) * 1999-04-16 2000-10-18 Flender-Himmelwerk Gmbh Getriebereihe
US6263760B1 (en) * 1998-07-21 2001-07-24 Varvel S.P.A. Speed varying device
EP1132653A1 (fr) * 2000-03-10 2001-09-12 Moteurs Leroy-Somer Procédé de fabrication d'une série de réducteurs et série de réducteurs ainsi réalisée
EP1215417A2 (de) * 2000-12-13 2002-06-19 SEW-EURODRIVE GMBH & CO. Baureihe von Getrieben und Verfahren zur Fertigung einer Baureihe
WO2006039997A1 (de) * 2004-10-08 2006-04-20 Sew-Eurodrive Gmbh & Co. Kg Getriebereihe
US7828147B2 (en) 2004-04-24 2010-11-09 Inrange Systems, Inc. Multi-layer medication carrier
US8019471B2 (en) 2004-04-24 2011-09-13 Inrange Systems, Inc. Integrated, non-sequential, remote medication management and compliance system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705812A1 (de) * 1987-02-24 1988-09-01 Flender A F & Co Zahnradgetriebereihe
EP0648317B1 (en) * 1992-07-06 1996-08-14 Hansen Transmissions International Nv Series of gear units
US5680793A (en) * 1992-07-06 1997-10-28 Hansen Transmission International Nv Series of gear units
DE10039835B4 (de) * 2000-08-16 2010-11-04 Zf Friedrichshafen Ag Gehäuse für Kraftfahrzeuggetriebe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1728279A (en) * 1927-12-17 1929-09-17 Clifford H Ramsey Speed-changing unit
US3358525A (en) * 1965-03-30 1967-12-19 Olsen Clarke Gears Ltd Gearboxes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL76635C (xx) * 1949-10-31
DE1203075B (de) * 1959-12-16 1965-10-14 Zd Y V I Narodni Podnik Getriebegehaeuse
DE1191649B (de) * 1961-09-21 1965-04-22 Boites De Vitesses Ind Baukastensystem fuer Zahnraederwechselgetriebe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1728279A (en) * 1927-12-17 1929-09-17 Clifford H Ramsey Speed-changing unit
US3358525A (en) * 1965-03-30 1967-12-19 Olsen Clarke Gears Ltd Gearboxes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943788A (en) * 1973-08-22 1976-03-16 Firma Zahnraderfabrik Renk Aktiengesellschaft Planar gear train
US5067361A (en) * 1990-04-14 1991-11-26 Sepp Lachenmaier Transmission series
US6263760B1 (en) * 1998-07-21 2001-07-24 Varvel S.P.A. Speed varying device
EP1045169A2 (de) * 1999-04-16 2000-10-18 Flender-Himmelwerk Gmbh Getriebereihe
EP1045169A3 (de) * 1999-04-16 2001-08-16 Flender-Himmelwerk Gmbh Getriebereihe
EP1132653A1 (fr) * 2000-03-10 2001-09-12 Moteurs Leroy-Somer Procédé de fabrication d'une série de réducteurs et série de réducteurs ainsi réalisée
FR2806142A1 (fr) * 2000-03-10 2001-09-14 Leroy Somer Procede de fabrication d'une serie de reducteurs et serie de reducteurs ainsi realisee
EP1215417A2 (de) * 2000-12-13 2002-06-19 SEW-EURODRIVE GMBH & CO. Baureihe von Getrieben und Verfahren zur Fertigung einer Baureihe
EP1215417A3 (de) * 2000-12-13 2005-01-19 Sew-Eurodrive GmbH & Co. KG Baureihe von Getrieben und Verfahren zur Fertigung einer Baureihe
US7828147B2 (en) 2004-04-24 2010-11-09 Inrange Systems, Inc. Multi-layer medication carrier
US8019471B2 (en) 2004-04-24 2011-09-13 Inrange Systems, Inc. Integrated, non-sequential, remote medication management and compliance system
WO2006039997A1 (de) * 2004-10-08 2006-04-20 Sew-Eurodrive Gmbh & Co. Kg Getriebereihe

Also Published As

Publication number Publication date
ZA708120B (en) 1971-08-25
BE747171A (nl) 1970-09-11
CH541745A (fr) 1973-09-15
OA03611A (fr) 1971-03-30
IL35783A0 (en) 1971-02-25
JPS5544250B1 (xx) 1980-11-11
NL7017701A (xx) 1971-09-14
GB1338610A (en) 1973-11-28
TR16895A (tr) 1973-09-01
NO150331B (no) 1984-06-18
AT309937B (de) 1973-09-10
IL35783A (en) 1973-03-30
NL148691B (nl) 1976-02-16
DE2061021C3 (de) 1982-04-08
BG29575A3 (en) 1980-12-12
EG10451A (en) 1976-05-31
FI56581C (fi) 1980-02-11
IE35008B1 (en) 1975-10-15
IE35008L (en) 1971-09-11
YU44071A (en) 1982-02-28
MY7400267A (en) 1974-12-31
PH11473A (en) 1978-02-01
DE2061021B2 (de) 1977-11-17
FI56581B (fi) 1979-10-31
DE2061021A1 (de) 1971-09-23
FR2083822A5 (xx) 1971-12-17
ES387118A1 (es) 1973-05-16
LU62678A1 (xx) 1971-08-17
CA940742A (en) 1974-01-29
NO150331C (no) 1984-09-26

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