EP1075931A2 - Exzenterpresse - Google Patents
Exzenterpresse Download PDFInfo
- Publication number
- EP1075931A2 EP1075931A2 EP00115332A EP00115332A EP1075931A2 EP 1075931 A2 EP1075931 A2 EP 1075931A2 EP 00115332 A EP00115332 A EP 00115332A EP 00115332 A EP00115332 A EP 00115332A EP 1075931 A2 EP1075931 A2 EP 1075931A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- eccentric
- gear
- shaft
- differential
- eccentric shaft
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/266—Drive systems for the cam, eccentric or crank axis
Definitions
- the present invention relates to an eccentric press with an eccentric shaft and a drive that is operationally connected to the eccentric shaft via a countershaft gear is.
- Such an eccentric press is e.g. known from DE 41 23 495.
- the performance of the The drive motor is stored with the help of a flywheel and via a countershaft transmission transferred to the eccentric shaft.
- This countershaft transmission can are a single or multi-stage spur gear. Through this countershaft transmission the comparatively high speed of the flywheel is said to be much lower Speed of the eccentric shaft can be reduced.
- the eccentric shaft then drives via a crank mechanism to the actual press ram in a known manner.
- the eccentric shaft can be a spur gear with which both translation levels are engaged.
- the spur gear of the eccentric shaft are designed to be significantly smaller. This also allows the eccentric press make it more compact. Due to the differential there is nevertheless an even load through both translation levels. The spur gear is through both gear ratios equally loaded and uneven wear is avoided.
- the countershaft transmission can be centered be arranged between the eccentrics. Then arise on both eccentrics Twist angle of the same size and direction. An inclination of the press ram can be effectively avoided.
- the differential gear can be a differential gear his.
- a differential gear can be made very compact.
- the countershaft transmission can have two parallel ones Have intermediate shafts, each one between the two gear ratios have arranged output device, both of which are operationally connected to the eccentric shaft are. In this way, a compact two-stage lay-up can be created produce. This allows spur gears with a smaller diameter to be used than this would be the case with a single-stage countershaft transmission.
- the output device has coupling teeth, with corresponding coupling teeth on the eccentric shaft and on the countershaft gear are engaged.
- the gear ratios can be preferably by single-stage spur gears are formed.
- Such a gearbox is particularly easy produce.
- flywheel is on the differential shaft of the differential gear acts. Then the energy of the flywheel can be centered in that Differential gear can be initiated. It can also prove beneficial if the drive is via the differential shaft. Then flywheel and drive can be combined with each other.
- the eccentric press 1 shows a schematic illustration of the eccentric press 1.
- the eccentric press 1 has a housing 2, the gear housing 2a and a press head piece 2b has, an eccentric shaft 3 in bearings 4 in the gear housing 2a and in Press head 2b is rotatably mounted.
- the eccentric shaft 3 is formed with several parts two lateral eccentric sections 5 and 6, each having eccentrics 7 and 8 each of which connecting rods 9 and 10 are rotatably mounted.
- the connecting rods 9 and 10 are known Way connected to a press ram, not shown, in the press head piece 26 of the housing 2 is guided to slide vertically.
- a drive section 11 mounted in the gear housing 2a, which is also approximately Has spur gear 12 arranged centrally between the connecting rods 9 and 10, which rotatably with the drive section 11 is connected.
- the drive section 11 is via couplings 13 and 14 connected to the two eccentric sections 5 and 6, respectively.
- the clutches 13 and 14 consist of coupling sleeves 15 or 16 and coupling wheels 21, 22 or 23, 24.
- the coupling sleeves 15 and 16 have internal teeth 17, 18 and 19, 20, respectively.
- the clutch wheels 21, 22, 23, 24 have corresponding external toothing.
- the clutch wheels 21, 23 are each rotationally fixed with the assigned eccentric sections 5, 6 connected.
- the clutch wheels 22, 24 are non-rotatably connected to the drive section 11.
- the housing In the housing are also two parallel intermediate shafts 25 and 25 'in bearings 26 and 26 'rotatably mounted.
- the intermediate shafts 25 and 25 'each have a rotationally fixed connected spur gear 27 and 27 ', each of which engages with the spur gear 12 are located.
- the spur gear 27 or 27 ' is approximately centered on the intermediate shaft 25 or 25' appropriate.
- two spur gears 28 and 29 are non-rotatable, but offset in the axial direction on the intermediate shafts 25 and 25 'respectively.
- the Spur gear 28 is non-rotatably on the intermediate shaft 25 and the spur gear 29 on the intermediate shaft 25 '.
- the spur gears 28 and 29 and 27, 27 ' are thereby perpendicular to the eccentric shaft offset from one another, as can be clearly seen in FIG. 2
- a differential gear 30 is provided.
- the differential gear 30 has via a non-rotatably arranged on a differential shaft 31 planet carrier 32.
- Die Differential shaft 31 is rotatably supported in bearings 33 and 34 in the housing 2.
- Bevel gears 37 and 38 can be rotated on the planet carrier in bearings 35 and 36, respectively stored. Crown wheels 39 and 40 are rotatably mounted on the differential shaft, which are known in each case with the bevel gears 37 and 38 in a differential gear Are engaged.
- the ring gears 39 and 40 are each with spur gears 41 and 42 non-rotatably connected, which in turn in the respective spur gears 28th and 29 comb.
- the differential gear 30 forms together with the spur gears 12, 27, 27 ', 28, 29, 41 and 42 a countershaft transmission 43, the spur gears 41, 28 and 42 and 29 each form parallel translation stages 44 and 45.
- the eccentric press also has a clutch 46 and a flywheel 47.
- the flywheel 47 is rotatably mounted on the differential shaft 31. In the indented State connects the clutch 46 to the differential shaft 31 in a rotationally fixed manner Flywheel 47.
- a brake 48 is provided on the side opposite the clutch 46.
- the differential shaft 31 becomes rotationally fixed with the transmission housing 2a connected.
- Clutch 46 and brake 48 are always actuated alternately.
- the eccentric press 1 has a drive which is controlled by an electric Drive motor 49 is formed.
- One rotatably on the output shaft of the drive motor attached pulley 50 drives the flywheel 47 via a belt 51.
- the drive takes place via a drive motor 49, wherein the power of the drive motor on the pulley 50 the belt 51 and on the flywheel 48 is applied.
- the clutch 46 is in the engaged state, so that the Power is transmitted to the differential shaft 31.
- the eccentric press according to the invention makes it possible to face the countershaft transmission to make conventional eccentric presses extremely compact.
- By the Connecting two gear ratios 44 and 45 in parallel can be much smaller Use spur gears.
- the use of two parallel intermediate shafts is also possible a particularly compact design of the eccentric press.
- the differential gear prevents uneven wear of the gear ratios 44 and 45 takes place.
- the performance of the Drive motor always evenly distributed on both gear ratios 44 and 45. Due to the central drive of the eccentric shaft 3, the angle of rotation for the two eccentrics 7 and 8 with respect to the spur gear 12 essentially the same, so that an inclined position of the press ram, not shown, is prevented.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
- Fig. 1
- eine schematische Darstellung der erfindungsgemäßen Exzenterpresse;
- Fig. 2
- eine teilweise Darstellung des Vorgelegegetriebes der erfindungsgemäßen Exzenterpresse.
Claims (10)
- Exzenterpresse mit zumindest einer Exzenterwelle (3) mit einem Antrieb (49), der über ein Vorgelegegetriebe (43) mit der Exzenterwelle betriebsverbunden ist, dadurch gekennzeichnet, daß das Vorgelegegetriebe ein Ausgleichsgetriebe (30) aufweist, mit dem die Leistung des Antriebs auf zwei parallel geschaltete Übersetzungsstufen (44, 45) des Vorgelegegetriebes aufteilbar ist.
- Exzenterpresse nach Anspruch 1, dadurch gekennzeichnet, daß die Exzenterwelle ein Stirnrad (12) aufweist, mit dem sich die beiden Übersetzungsstufen in Eingriff befinden.
- Exzenterpresse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Exzenterwelle zumindest zwei Exzenter aufweist und das Vorgelegegetriebe die Antriebsleistung zwischen den beiden Exzentern auf die Exzenterwelle überträgt.
- Exzenterpresse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Stirnrad der Exzenterwelle etwa mittig zwischen den Exzentern angeordnet ist.
- Exzenterpresse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Ausgleichsgetriebe ein Differentialgetriebe ist.
- Exzenterpresse nach Anspruch 5, dadurch gekennzeichnet, daß das Ausgleichsgetriebe ein Kegelraddifferentialgetriebe ist.
- Exzenterpresse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Vorgelegegetriebe zwei parallel Zwischenwellen (25, 25') aufweist, die jeweils eine zwischen den beiden Übersetzungsstufen angeordnete Abtriebseinrichtung (27, 27') aufweisen, die beide mit der Exzenterwelle betriebsverbunden sind.
- Exzenterpresse nach Anspruch 7, dadurch gekennzeichnet, daß die Abtriebseinrichtung jeweils ein Stirnrad (27) ist, das sich mit dem Stirnrad der Exzenterwelle in Eingriff befindet.
- Exzenterpresse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Übersetzungsstufen durch vorzugsweise einstufige Stirnradgetriebe gebildet werden.
- Exzenterpresse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Schwungrad auf die Differentialwelle (31) des Differentialgetriebes wirkt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999138450 DE19938450C2 (de) | 1999-08-13 | 1999-08-13 | Exzenterpresse |
| DE19938450 | 1999-08-13 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1075931A2 true EP1075931A2 (de) | 2001-02-14 |
| EP1075931A3 EP1075931A3 (de) | 2002-11-13 |
| EP1075931B1 EP1075931B1 (de) | 2009-08-26 |
Family
ID=7918320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20000115332 Expired - Lifetime EP1075931B1 (de) | 1999-08-13 | 2000-07-14 | Exzenterpresse |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1075931B1 (de) |
| DE (2) | DE19938450C2 (de) |
| ES (1) | ES2329966T3 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7310988B2 (en) | 2002-07-10 | 2007-12-25 | Aida Engineering Co., Ltd. | Drive device for a mechanical press |
| CN108943792A (zh) * | 2018-09-05 | 2018-12-07 | 山东迈特力重机有限公司 | 一种双联凸轮传动机构 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2881880A (en) * | 1956-09-19 | 1959-04-14 | Niagara Machine & Tool Works | Power press drive mechanism |
| AT270324B (de) * | 1967-02-15 | 1969-04-25 | Simmering Graz Pauker Ag | Zahnradgetriebe mit Leistungsverzweigung |
| GB1279607A (en) * | 1968-10-04 | 1972-06-28 | Modern Wheel Drive Ltd | Improvements relating to gear drives |
| US3559498A (en) * | 1969-03-26 | 1971-02-02 | Kennedy Van Saun Co | Floating pinion mounting for reduction gear units |
| US3610065A (en) * | 1969-10-23 | 1971-10-05 | Teru Hayashi | Power transmission gear system |
| DE2739596A1 (de) * | 1977-08-31 | 1979-03-08 | Mannesmann Ag | Getriebe, insbesondere schiffsgetriebe |
| DD295589A5 (de) * | 1990-07-25 | 1991-11-07 | Umformtechnik Erfurt Gmbh,De | Einrichtung zur Nutzbremsung an Exzenter- oder Kurbelpressen |
-
1999
- 1999-08-13 DE DE1999138450 patent/DE19938450C2/de not_active Expired - Fee Related
-
2000
- 2000-07-14 ES ES00115332T patent/ES2329966T3/es not_active Expired - Lifetime
- 2000-07-14 DE DE50015729T patent/DE50015729D1/de not_active Expired - Lifetime
- 2000-07-14 EP EP20000115332 patent/EP1075931B1/de not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7310988B2 (en) | 2002-07-10 | 2007-12-25 | Aida Engineering Co., Ltd. | Drive device for a mechanical press |
| EP1380405B1 (de) * | 2002-07-10 | 2013-04-24 | Aida Engineering Co., Ltd. | Antriebseinrichtung für eine mechanische Presse |
| CN108943792A (zh) * | 2018-09-05 | 2018-12-07 | 山东迈特力重机有限公司 | 一种双联凸轮传动机构 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50015729D1 (de) | 2009-10-08 |
| DE19938450C2 (de) | 2001-11-08 |
| EP1075931A3 (de) | 2002-11-13 |
| DE19938450A1 (de) | 2001-03-01 |
| EP1075931B1 (de) | 2009-08-26 |
| ES2329966T3 (es) | 2009-12-03 |
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