EP0368923A1 - Transmission a bielle cruciforme - Google Patents

Transmission a bielle cruciforme

Info

Publication number
EP0368923A1
EP0368923A1 EP88907076A EP88907076A EP0368923A1 EP 0368923 A1 EP0368923 A1 EP 0368923A1 EP 88907076 A EP88907076 A EP 88907076A EP 88907076 A EP88907076 A EP 88907076A EP 0368923 A1 EP0368923 A1 EP 0368923A1
Authority
EP
European Patent Office
Prior art keywords
pins
cross
crank
slide
crank drive
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.)
Pending
Application number
EP88907076A
Other languages
German (de)
English (en)
Inventor
Kurt Dönitz
Normann Wendel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albek & Partner GmbH
Original Assignee
Albek & Partner GmbH
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 Albek & Partner GmbH filed Critical Albek & Partner GmbH
Publication of EP0368923A1 publication Critical patent/EP0368923A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/14—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation perpendicular to the axis of rotation

Definitions

  • the present invention relates to a cross crank drive, with the aid of which a linear reversing movement using a rotary drive and vice versa can be generated from a linear rotary movement.
  • the present invention has therefore set itself the task of producing reversing cross-crank drives, which have increased transmission angles and increased stroke compared to conventional thrust cranks.
  • This object is achieved according to the invention with a cross crank drive with a crank rotatable in a frame, which engages with pins in operation in slots in a slide which is guided in scenes, the crank having two pins arranged at an angle of 90 ° to the axis of rotation of the crank, that the carriage has two intersecting slots at an angle of 90 °, each extending at an angle of 45 ° to the direction of thrust of the slide and that in operation the first pin and the second pin is guided in the first slot and the second slot.
  • this crank mechanism represents a double cross loop.
  • the function of the invention is that the pins abut against the slot flanks arranged at 45 ° to the direction of slide movement and move them when rotating and vice versa when pressed on the pins set them in a circular motion.
  • the pins remain in the slots arranged at 90 ° to each other, i.e. they do not change them, which results in a decisive advantage of the present invention, which is that at least one pin always remains connected to the slots, especially when the other runs through the open crossing point.
  • top and bottom dead centers occur at the moment when the connecting line of the pins intersects the direction of movement of the slide at 90 °.
  • flanks and pins can also be toothed with one another, as a result of which the device runs particularly smoothly.
  • the slots can be open flanks which are arranged on one side and are arranged in an X-shape with respect to one another, since the pins only abut against them while maintaining the direction of rotation.
  • an embodiment as intersecting slots is preferred, in which the slots are symmetrically opposite one another. It is also fundamentally possible to make the slots open in such a way that the flanks form two opposite angles in a V-shape, leaving a distance between their tips which is necessary for the passage of the pins, but not both pins constantly or vice versa Drive flanks.
  • the slots run out in semicircular shells, the diameter of which is slightly larger than that of the pins or of the ball bearings possibly running on them, so that the slots have sufficient play with them.
  • Piston drives can advantageously be produced with the present invention, the slides being connected to pistons assigned to them.
  • the piston can be arranged particularly rigidly on the slide, since connecting rod bearings are no longer required.
  • the slide can also be arranged between two disks connected by the pins and optionally a shaft. The pins are guided in the carriage or its slots, as described above, the disks being able to be attached using the pins alone. If the shaft is also to serve as a connecting link, it is proposed to provide the slide with an axial opening which extends in the direction of movement and which leaves play on all sides with respect to the axis.
  • flywheels are assigned to the pins and, if appropriate, to the central axis, which overcome the dead centers with the aid of their moment of inertia.
  • the different required cycle times are easy to achieve by arranging the adjacent pins offset by the desired angle.
  • the cross-crank drive according to the invention shows simple and thus controllable sine curves with respect to the cross-slide speed with regard to the cross-slide speed and the cross-slide acceleration.
  • the stroke is over 40% higher. Because of the missing pendulum movement of the connecting rod, there are no disturbing vibrations. In addition, no higher order mass forces have to be taken into account, which are responsible for resonance phenomena in the higher speed range in the thrust crank mechanism, from which a better vibration behavior is derived. Higher harmonic components are therefore eliminated, which favors the smooth running of the transmission.
  • the piston is rigidly connected to the slide via a push rod.
  • the piston and cylinder on the one hand and the slide drive on the other hand can be spatially separated from one another and kinematically connected by the push rod.
  • a particularly simple construction of such motors can be derived from this.
  • the passage of the push rod through the cylinder cover and the gear housing are simple sliding seals, cylinder and gear thus form separate units which can also be serviced separately.
  • crankshaft that is usually used conventionally allows the extremely simple manufacture of engines and the like, which is of particular importance for smaller workshops without special tools.
  • an engine manufactured according to the invention can be regulated within wide limits with regard to compression. Since the cylinder-piston unit and the gearbox do not have to be surrounded by a common housing, the adjustment of the push rod length can be made easily from the outside, for example with the aid of a threaded rod and lock nuts, without opening a housing.
  • 1 to 8 show the motion sequence of the kinematics.
  • Fig. 9 shows the slide guide.
  • 11 shows a two-stroke boxer engine.
  • Fig. 12 shows a four-stroke boxer engine.
  • the positions of the pins 5 and 6 are shown at 45 ° intervals with rotation about the axis 4.
  • the capital letters A to D show the end positions of the pins 5 and 6 in the slots 11, 11 ', 12 and 12' arranged perpendicular to each other.
  • the vertical dashed line indicates that the axis 4 remains stationary, the auxiliary circle 16 shows the circular path of the pins 5 and 6.
  • the slots 11, 11 ', 12 and 12' are part of a carriage (FIG. 9), the direction of movement of which, as indicated by the upper arrow, when the pins 5, 6 run clockwise about the axis 4 up to the angular position 180 ° (FIG. 5) runs to the right and reverses up to 360 °, the position at 315 ° being shown in FIG. 8.
  • FIGS. 1-8 when passing through the opening of the slot cross, the respective other pin remains in engagement with the latter, as is shown in FIGS. 2, 4, 6 and 8.
  • flank spacing is to be designed slightly larger than the pin diameter or, if a pivot bearing is to be arranged on it, as its diameter.
  • the same necessarily applies to the half-shells 13 located at positions A, B, C, D.
  • FIGS. 1-8 it is also indicated that the shaft 4 with its axis of rotation, about which the pins 5, 6 rotate, can pass through the carriage or its slots, since the latter extends along the central axis (FIG. 9, Pos. 14) of the slide relatively relocated.
  • Fig. 1 and Fig. 5 represent opposite dead centers of the sled. Should the sled e.g. are driven by pistons, the shaft 4 and the pins 5, 6 are to be assigned a flywheel to overcome the dead centers, or these are to be attached to such.
  • FIG. 9 shows the arrangement of the slots 11, 11 ', 12, 12' in a slide 1 on which axial push rods 7 are arranged.
  • the carriage is guided here with the aid of the scenes 9 and 10. Other guides are possible.
  • the slide movement runs along the auxiliary line 14, so that the push rods also only reciprocate linearly and the force is transmitted to an interacting element, for example a piston, while maintaining the vector direction and changing its sign only.
  • the pins 5, 6 and the shaft 4 are assigned two disks 2, 3, which can be designed as flywheels.
  • the shaft 4 penetrates the carriage and runs in the opening 15 without contact.
  • the pins 5, 6 also go through the carriage 1 and the disks 2, 3 are arranged on both sides of the carriage.
  • the shaft 4 can also be dispensed with, since two opposite flywheels can also be connected to one another only by the pins 5, 6.
  • the slide, slide guide, disks, shaft and pin can run in a sealed oil bath, the passage of the push stands through an appropriately sealed housing does not pose any difficulties, since their movement is only linear.
  • FIG. 10 shows the slide guide of FIG. 9 in a side view (tilted by 90 °), the push rod (7 or 8) emerging from the plane of the drawing.
  • the carriage 1 is guided in the rails 9, 10.
  • Disks 2, 3 are arranged on both sides and are connected to one another by the pins 5, 6 and the shaft 4.
  • FIG. 11 shows, as an application example, a simply constructed internal combustion engine, a two-stroke boxer engine, in which the pistons 17 are driven by the push rods 7.
  • the push rods 7 are rigidly arranged between the piston 17 and the slide 1.
  • the cylinder housing 19 is spatially separated from the slide 1 or the gear with the pins 5, 6 and the slots 11, 12 and has its own seals 20.
  • the push rod 7 can also be designed to be variable in length, for example via an internal thread on the slide, into which a corresponding external thread of the push rod engages.
  • the piston 17 together with the push rod can thus be screwed into the slide after the machine has come to a standstill in order to reduce the compression and, conversely, to increase it.
  • a scale can be attached to the push rod '7 for checking purposes.
  • the engine can therefore be adapted to changing fuels.
  • the known two-stroke engine is shown in principle, with 21 the inlet valves and 22 the exhaust valves.
  • FIG. 12 schematically shows a four-stroke boxer engine, to which the statements made in FIG. 11 largely also apply.
  • the present invention is of course not limited to a boxer arrangement, rather the pins 5, 6 can be arranged between the pairs of disks at any angle to one another, so that star, V and in-line engines can be easily constructed in the same simple manner.
  • the arrows indicate the direction of flow of the gases.
  • FIG. 13 shows a box compressor arrangement according to the invention, in which. the pistons are loaded on both sides, so that fourfold compression occurs; the pistons 17, 17 'have different surfaces for a graduated compression.
  • the carriage is not over the Push rod 7 driven by the pistons 17, 17 ', but the pins 5, 6 are connected to a motor and drive the slide 1 and, via this, the pistons 17, 17' for compression.
  • one side as an internal combustion engine and the other as a compressor.
  • the path of the gas to be compressed can also be cooled to increase the efficiency.

Abstract

Un dispositif permet de générer un mouvement linéaire alternatif au moyen d'un entraînement rotatif et inversement de transformer un mouvement linéaire en un mouvement rotatif. L'entraînement rotatif comprend deux tenons (5, 6) qui tournent autour d'un axe central (4) et qui enclenchent un chariot à croix (1). Le chariot à croix (1) comprend un guidage et des coulisses (11, 12) ouvertes formant entre elles un angle de 90° et un angle de 45° avec le sens d'avancement du chariot à croix (1). Les coulisses reposent contre les tenons (5, 6) et ont une longueur égale à au moins deux fois l'écart entre les tenons (5, 6).
EP88907076A 1987-07-20 1988-07-19 Transmission a bielle cruciforme Pending EP0368923A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723929A DE3723929C1 (de) 1987-07-20 1987-07-20 Kreuzschubkurbeltrieb
DE3723929 1987-07-20

Publications (1)

Publication Number Publication Date
EP0368923A1 true EP0368923A1 (fr) 1990-05-23

Family

ID=6331940

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88907076A Pending EP0368923A1 (fr) 1987-07-20 1988-07-19 Transmission a bielle cruciforme
EP88201713A Expired - Lifetime EP0307020B1 (fr) 1987-07-20 1988-07-19 Moteur avec méchanisme de va-et-vient

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88201713A Expired - Lifetime EP0307020B1 (fr) 1987-07-20 1988-07-19 Moteur avec méchanisme de va-et-vient

Country Status (11)

Country Link
EP (2) EP0368923A1 (fr)
JP (1) JPH02504546A (fr)
CN (1) CN1036444A (fr)
AT (1) ATE77455T1 (fr)
AU (1) AU2139288A (fr)
DE (2) DE3723929C1 (fr)
ES (1) ES2013795A6 (fr)
HU (1) HUT62989A (fr)
IL (1) IL87012A0 (fr)
PL (1) PL273789A1 (fr)
WO (1) WO1989000652A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138210A1 (de) * 1991-11-21 1992-04-23 Anton Schad Kurbelgleitzapfenantriebsgetriebe zur umwandlung einer hin- und hergehenden bewegung in eine drehbewegung oder umgekehrt
WO1998027364A1 (fr) * 1996-12-17 1998-06-25 Jaroslav Fedor Convertisseur a papillon servant a convertir reciproquement des mouvements alternatifs et rotatifs
JP2005501204A (ja) * 2001-08-24 2005-01-13 スパングラー，ケンドール，リー 連続主ジャーナルをもつクランクシャフト、および対応する連結構造
DE10347265B4 (de) * 2002-11-05 2014-01-30 Schaeffler Technologies AG & Co. KG Wankstabilisator für das Fahrwerk eines Kraftfahrzeuges
CN101846166B (zh) * 2010-04-19 2014-06-25 靳北彪 高效曲柄连杆机构
DE102013010401A1 (de) * 2013-06-21 2014-12-24 Gösta Ernst Kurvengetriebe
CN112025911B (zh) * 2020-09-25 2022-09-30 张家港盛港非金属材料科技有限公司 一种板材复合前预处理装置及预处理方法
CN113602489B (zh) * 2021-10-11 2021-12-07 中国空气动力研究与发展中心低速空气动力研究所 一种大前进比旋翼桨叶反流失速主动控制后缘小翼装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE336956C (de) * 1918-12-18 1921-05-20 Weingarten Vorm Hch Schatz A G Schubgetriebe
US1369445A (en) * 1920-03-22 1921-02-22 Kruse Charles Mechanical movement
DE409919C (de) * 1923-06-26 1925-02-16 Gottfried Hillekum Zweitaktverbrennungsmaschine mit zwei gegenueberliegenden Zylindern
DE494867C (de) * 1928-08-30 1930-03-28 Paul Marchetti Getriebe, mit dem eine hin und her gehende Bewegung in eine drehende umgewandelt wird
DE727756C (de) * 1940-10-10 1942-11-11 Alexander Thusius Gemischverdichtende Zweitaktbrennkraftmaschine
DE920758C (de) * 1951-12-21 1954-11-29 Heinz Boerner Zweitaktbrennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8900652A1 *

Also Published As

Publication number Publication date
WO1989000652A1 (fr) 1989-01-26
DE3872119D1 (de) 1992-07-23
ATE77455T1 (de) 1992-07-15
PL273789A1 (en) 1989-03-06
HUT62989A (en) 1993-06-28
EP0307020B1 (fr) 1992-06-17
ES2013795A6 (es) 1990-06-01
DE3723929C1 (de) 1989-01-19
EP0307020A1 (fr) 1989-03-15
IL87012A0 (en) 1988-12-30
CN1036444A (zh) 1989-10-18
JPH02504546A (ja) 1990-12-20
AU2139288A (en) 1989-02-13

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