GB1375467A - - Google Patents
Info
- Publication number
- GB1375467A GB1375467A GB2523172A GB2523172A GB1375467A GB 1375467 A GB1375467 A GB 1375467A GB 2523172 A GB2523172 A GB 2523172A GB 2523172 A GB2523172 A GB 2523172A GB 1375467 A GB1375467 A GB 1375467A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- ratios
- clutch
- gears
- friction clutch
- 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
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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
- F16H2037/045—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion comprising a separate gearing unit for shifting between high and low ratio range
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0065—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising nine forward speeds
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
- F16H2200/0091—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising three reverse speeds
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
1375467 Change-speed gear WERKZEUGMASCHINENKOMBINAT "FRITZ HECKERT" KARL - MARX - STADT VEB 30 May 1972 25231/72 Heading F2D A machine-tool change-speed gear, shown in Fig. 1, as producing eighteen ratios forward and reverse, and in Fig. 2, not shown, twenty-four ratios, but capable of two hundred ratios, comprises a main train of four parallel shafts 2, 3, 4, 7, which can, through a friction clutch 25, selectively directly connect the input and output shafts 2, 7, at, e.g. six, or eight ratios, and an auxiliary gear on parallel shafts 5, 6, which can, through at least one positive selector clutch 34, 37, be selectively interposed between the main train and the final output shaft 7, to provide, e.g. three ranges of ratios, the main gear having wheels which can be selectively clutched thereto by friction clutches, whilst the positive clutches 34 or 37 select ratios in the auxiliary gear. Synchronization is therefore necessary for only these two positive clutches 34, 37 of the auxiliary gear. The input shaft 2 is driven through a clutched reverse gear 40-51 by a motor 9 capable of being mounted in different positions, and optionally of polechanging to increase the number of ratios. The clutches are all electromagnetically engaged, and control may be by punched card, magnetic tape or computer. In Fig. 1, the auxiliary train provides three ranges, high, medium and low, each giving six ratios as follows. High range.-The main gear drives direct from input 2 to output 7, ratios one to six being as follows. First (highest output speed), friction clutch 12, gears 11, 16, 22, friction clutch 23, shaft 4, friction clutch 25, gears 24, 38 and output shaft 7. Second, friction clutch 15, gears 14, 19 shaft 3 to gear 16, then as for first. Third, gears 13 17, friction clutch 18, shaft 3 to gear 16, then as for first and second. Fourth, friction clutch 12, gears 11, 16, shaft 3, gears 20, 26, friction clutch 27, shaft 4, friction clutch 25, and gears 24, 38 to output 7. Fifth, clutch 15, gears 14, 19, shaft 3, then as for fourth. Sixth, gears 13, 17, friction clutch 18, shaft 3, then as for fourth and fifth. Medium range.-The friction clutch 25, used only for direct connection of the main gear to output 7 in the'high range, is released, and replaced by engagement of the friction clutch 31 connecting the main to the auxiliary gear 5, 6, and the auxiliary gear dog clutch 34 on the output shaft 7 is engaged. In the six to seven shift to medium range the dog clutch 34 synchronizes as the output shaft 7 slows down during shift, synchronism being detected by input and output driven tacho-generators 10, 39, controlling a bridge circuit, not described, permitting clutch engagement. The six medium range ratios (seventh to twelfth) follow the six high range ratios above described, as far as the shaft 4, and thereafter pass to output 7 through gears 21, 28, 29, friction clutch 31, shaft 5, gears 32, 33 and dog clutch 34 to output 7. Low range.-The friction clutch 31 is released and the main gear connected to the auxiliary by engagement of a dog clutch 37, whilst dog clutch 34 remains engaged. Ratios thirteen to eighteen again follow the six ratios of the main gear up to shaft 4, then through gears 21, 28, 29, 30, 36, dog clutch 37, shaft 6, gears 35, 32, 33 and dog clutch 34 to output 7. The dog clutch 37 is engaged when the output shaft 7 slows down to synchronism during the twelfth to thirteenth shift, the tacho-generators 10, 39 again detecting synchronism to control clutch engagement. By attaching the drive motor 9 to different shafts (Figs. 3, 4, not shown) the ratio range may be extended to fifty and doubled to one hundred by pole changing. Fig. 2, not shown, provides twenty-four ratios in three ranges of eight. The main gear has an additional meshing pair (63, 68) and friction clutch (69) between the first two shafts to provide the eight main ratios. The auxiliary gear has an additional stepped wheel pair (81, 82) meshing a wheel (86) fast on the second shaft (56), and a wheel (91) clutchable (at 90) to the final output shaft (57). Two dog clutches (84, 90) are used for the medium range, and two dog clutches (84, 92) for the low.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2523172A GB1375467A (en) | 1972-05-30 | 1972-05-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2523172A GB1375467A (en) | 1972-05-30 | 1972-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1375467A true GB1375467A (en) | 1974-11-27 |
Family
ID=10224330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2523172A Expired GB1375467A (en) | 1972-05-30 | 1972-05-30 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1375467A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4205561A (en) * | 1978-02-21 | 1980-06-03 | Pitney Bowes Inc. | Multiple drive train for small devices |
EP1138986A1 (en) * | 2000-03-30 | 2001-10-04 | Hitachi Ltd. | Apparatus and method for controlling an automatic transmission |
EP1522763A1 (en) * | 2003-08-07 | 2005-04-13 | HONDA MOTOR CO., Ltd. | Parallel shaft transmission |
WO2006123079A2 (en) * | 2005-05-18 | 2006-11-23 | Renault S.A.S. | Gearbox with lateral oil pump |
US7357844B2 (en) | 2002-03-01 | 2008-04-15 | Japan Science And Technology Agency | Soft magnetic metallic glass alloy |
CN100443768C (en) * | 2003-08-07 | 2008-12-17 | 本田技研工业株式会社 | Parallel shaft transmission |
CN108757852A (en) * | 2018-07-27 | 2018-11-06 | 重庆西玛福科技有限公司 | gearbox and mobile platform |
-
1972
- 1972-05-30 GB GB2523172A patent/GB1375467A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4205561A (en) * | 1978-02-21 | 1980-06-03 | Pitney Bowes Inc. | Multiple drive train for small devices |
EP1138986A1 (en) * | 2000-03-30 | 2001-10-04 | Hitachi Ltd. | Apparatus and method for controlling an automatic transmission |
US6514172B2 (en) | 2000-03-30 | 2003-02-04 | Hitachi, Ltd. | Control apparatus of automatic transmission and method of controlling the same |
US6705971B2 (en) | 2000-03-30 | 2004-03-16 | Hitachi, Ltd. | Control apparatus of automatic transmission and method of controlling the same |
US7357844B2 (en) | 2002-03-01 | 2008-04-15 | Japan Science And Technology Agency | Soft magnetic metallic glass alloy |
US7080567B2 (en) | 2003-08-07 | 2006-07-25 | Honda Motor Co., Ltd. | Parallel shaft transmission |
EP1522763A1 (en) * | 2003-08-07 | 2005-04-13 | HONDA MOTOR CO., Ltd. | Parallel shaft transmission |
CN100443768C (en) * | 2003-08-07 | 2008-12-17 | 本田技研工业株式会社 | Parallel shaft transmission |
WO2006123079A2 (en) * | 2005-05-18 | 2006-11-23 | Renault S.A.S. | Gearbox with lateral oil pump |
FR2885980A1 (en) * | 2005-05-18 | 2006-11-24 | Renault Sas | GEARBOX WITH SIDE OIL PUMP |
WO2006123079A3 (en) * | 2005-05-18 | 2007-03-01 | Renault Sa | Gearbox with lateral oil pump |
CN108757852A (en) * | 2018-07-27 | 2018-11-06 | 重庆西玛福科技有限公司 | gearbox and mobile platform |
CN108757852B (en) * | 2018-07-27 | 2023-09-22 | 重庆西玛福科技有限公司 | Gearbox and mobile platform |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |