EP1132620B1 - Transmission for deep well pump - Google Patents

Transmission for deep well pump Download PDF

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Publication number
EP1132620B1
EP1132620B1 EP01103803A EP01103803A EP1132620B1 EP 1132620 B1 EP1132620 B1 EP 1132620B1 EP 01103803 A EP01103803 A EP 01103803A EP 01103803 A EP01103803 A EP 01103803A EP 1132620 B1 EP1132620 B1 EP 1132620B1
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EP
European Patent Office
Prior art keywords
pump
transmission
gear
input shaft
gearwheel
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 - Lifetime
Application number
EP01103803A
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German (de)
French (fr)
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EP1132620A3 (en
EP1132620A2 (en
Inventor
Erwin Kobensen
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Siemens AG
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A Friedrich Flender AG
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Publication of EP1132620A2 publication Critical patent/EP1132620A2/en
Publication of EP1132620A3 publication Critical patent/EP1132620A3/en
Application granted granted Critical
Publication of EP1132620B1 publication Critical patent/EP1132620B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/28—Safety arrangements; Monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions

Definitions

  • the invention relates to a transmission for one in one Conveyor pump set up in a deep borehole with the characteristics of The preamble of claim 1.
  • Rotating deep well pumps, especially for production of petroleum are placed at the foot of a borehole. you will be over a rotating rod that protrudes beyond the borehole, driven by an electric motor via a gearbox.
  • the Actuator rod has only one in relation to its length small diameter. When introducing a torque to The drive of the deep borehole pump twists the drive rod in the elastic range and thus acts as a torsion spring can store a lot of energy according to its length. At the Switching off the electric motor or even in the event of a power failure stored energy released and over the Transmission output shaft in the transmission and the electric motor initiated.
  • WO 88/07126 describes a generic transmission for an in a deep well installed feed pump known with a centrifugal brake to break down the in the drive train Feed pump stored energy is provided.
  • the Centrifugal brake engages the input shaft of the gearbox and slows them down from excessive speeds tolerable speeds.
  • Such mechanical Friction brakes have the disadvantage that these brakes do them are difficult to dose, subject to high wear and that the pump shaft remains under tension (Danger of accident).
  • WO 97/10437 describes a drive for a deep borehole pump known in which a liquid pump for controlled degradation the stored energy from the transmission output shaft is used.
  • the liquid pump is over one Overrunning clutch connected to a shaft of the transmission. at normal operation, i.e. with the direction of rotation of the Downhole pump will not rotate from the freewheel transfer. In the opposite direction of rotation the Rotational movement initiated in the liquid pump. This sucks the liquid pump from a reservoir a viscous Liquid on and promotes this again via a throttle valve back.
  • the throttle valve is set or dimensioned so that that a gradual degradation of the stored energy takes place and the drive in the permissible speed range remains.
  • DE 534 429 embodies a gear pump Braking device for the driven shaft of differential gears described, the task of which is Rotational speed of this shaft in both directions regulate.
  • the pump housing with the two rotating ones inside Gears of this gear pump is on lines in which Control valves and check valves are arranged with a external oil tank connected.
  • This braking device is relatively expensive, since an external storage tank and external lines secured by valves for the Provision of the liquid are required.
  • the invention has for its object the generic To design gearboxes in such a way that the stored energy comes from the output shaft is broken down in a controlled manner in a simpler manner can be.
  • a gear pump is in the transmission integrated, which acts as a reverse brake.
  • the input shaft can necessarily vertically arranged output shaft horizontally become. This creates an overall compact gearbox Drive a deep well pump.
  • the invention is based on the idea that a Gear pump for conveying liquids is known to be the Delivery direction depends on the direction of rotation. In the Invention this is so by the arrangement of the gear pump exploited that in the operating direction of rotation of the gearbox air is sucked in on the inlet side and therefore none Liquid delivery takes place.
  • the opposite Direction of rotation that occurs when the gearbox through the stored energy from the output shaft of the transmission and the associated drive linkage of the deep well pump is driven, fluid is conveyed and pressure built up, since the inlet side is below the Liquid level. Oil becomes the liquid used, which also serves as a lubricating oil for lubricating the Gearbox serves.
  • the oil is pumped into a pressure chamber.
  • the pressure chamber is connected to the gearbox interior via a throttle connected.
  • the throttle causes an increase in pressure and thus a controlled breakdown of the stored energy. With increasing speed increases the torque of the gear pump, which is used for braking.
  • the gear is an angular gear and has a horizontal Input shaft 2 on one end in a gear housing 1 protrudes and at this end one with external teeth provided bevel pinion 3 carries.
  • a drive not shown, for. B. a Electric motor.
  • the input shaft 2 is in two bearings 4.1, 4.2 stored, which can be the same or different.
  • the bevel pinion 3 meshes with a corresponding one External toothing provided bevel gear 6, which is on a vertical arranged, hollow output shaft 5 is rotatably attached.
  • the Output shaft 5 is in two bearings 7, 8 and in a thrust bearing 9 stored in the gear housing 1.
  • the output shaft 5 is over a rod rod, not shown, with a likewise Feed pump, not shown, arranged in a deep borehole connected. This feed pump is used to extract petroleum.
  • the interior of the gear housing 1, in which the bevel pinion 3rd and revolve around the bevel gear 6 is partially up to one designed liquid level with lubricating oil filled.
  • the gear housing 1 is on one side through a cover 19 closed. On the opposite side are on the Gearbox housing 1 screwed two bearing flanges 12, 14 in which the bearings 4 supporting the input shaft 2 are provided. Out the input shaft 2 is sealed to the outer bearing flange led out.
  • a pump flange is located between the two bearing flanges 12, 14 13 clamped, which has an inner cavity. Within the cavity of the pump flange 13 is on the input shaft 2, a first gear 10 is attached in a rotationally fixed manner. The first gear 10 forms with a second one in the cavity of the pump flange 13 arranged gear 11 a gear pump.
  • the one pump chamber 15 of the gear pump stands with the Lube-filled interior of the gearbox 1 below of the liquid level in connection.
  • the other Pump chamber 16 is connected to a return flow channel 18, which in the interior of the gear housing 1 above the Liquid level empties.
  • a throttle 17 installed in the return flow channel 18 .

Abstract

The gear is constructed for angled drive. The conical pinion (3) on the input shaft (2) meshes with the conical wheel on the output shaft (5). An additional toothed wheel (10) is assembled onto the input shaft, forming a gear pump with a second toothed wheel. This transfers fluid against the operational rotation of the gear. Preferred Features: One pump chamber (15) of the gear pump is below the fluid level. The other pump chamber is connected via a restriction (17) above the fluid level with the oil-filled interior.

Description

Die Erfindung betrifft ein Getriebe für eine in einem Tiefbohrloch aufgestellte Förderpumpe mit den Merkmalen des Oberbegriffes des Anspruches 1.The invention relates to a transmission for one in one Conveyor pump set up in a deep borehole with the characteristics of The preamble of claim 1.

Rotierende Tiefbohrlochpumpen, insbesondere für die Förderung von Erdöl, werden am Fuß eines Bohrloches angeordnet. Sie werden über eine rotierende Stange, die über das Bohrloch hinausragt, über ein Getriebe von einem Elektromotor angetrieben. Die Antriebsstange hat im Verhältnis zu ihrer Länge nur einen geringen Durchmesser. Bei Einleitung eines Drehmomentes zum Antrieb der Tiefbohrlochpumpe verdrillt sich die Antriebsstange im elastischem Bereich und wirkt somit als Torsionsfeder, die entsprechend ihrer Länge sehr viel Energie speichern kann. Beim Abschalten des Elektromotors oder auch bei Stromausfall wird die gespeicherte Energie freigegeben und über die Getriebeausgangswelle in das Getriebe und den Elektromotor eingeleitet. Da die Laufwiderstände von Getriebe und Motor nur gering sind und das Getriebe entsprechend seiner Übersetzung die Drehzahl noch erhöht, können durch die gespeicherte Energie beim Rücklaufen sehr hohe Geschwindigkeiten auftreten, die den gesamten Antrieb explosionsartig zerstören können. Der Antrieb muss somit mit einer Bremsvorrichtung ausgerüstet sein, die einen kontrollierten Abbau der gespeicherten Energie möglich macht.Rotating deep well pumps, especially for production of petroleum are placed at the foot of a borehole. you will be over a rotating rod that protrudes beyond the borehole, driven by an electric motor via a gearbox. The Actuator rod has only one in relation to its length small diameter. When introducing a torque to The drive of the deep borehole pump twists the drive rod in the elastic range and thus acts as a torsion spring can store a lot of energy according to its length. At the Switching off the electric motor or even in the event of a power failure stored energy released and over the Transmission output shaft in the transmission and the electric motor initiated. Because the running resistance of the gearbox and motor only are low and the gearbox according to its translation Speed even higher, can be saved by the stored energy Rewinds occur at very high speeds can destroy the entire drive explosively. The drive must therefore be equipped with a braking device that controlled reduction of the stored energy possible makes.

Aus der WO 88/07126 ist ein gattungsgemäßes Getriebe für eine in einem Tiefbohrloch aufgestellte Förderpumpe bekannt, das mit einer Zentrifugalbremse zum Abbau der in dem Antriebsstrang der Förderpumpe gespeicherten Energie versehen ist. Die Zentrifugalbremse greift an die Eingangswelle des Getriebes an und bremst diese von überhöhten Geschwindigkeiten auf verträgliche Geschwindigkeiten ab. Solche mechanischen Reibungsbremsen haben den Nachteil, dass diese Bremsen sie schlecht zu dosieren sind, einem hohen Verschleiß unterliegen und dass die Pumpenwelle unter Vorspannung verbleibt (Unfallgefahr).WO 88/07126 describes a generic transmission for an in a deep well installed feed pump known with a centrifugal brake to break down the in the drive train Feed pump stored energy is provided. The Centrifugal brake engages the input shaft of the gearbox and slows them down from excessive speeds tolerable speeds. Such mechanical Friction brakes have the disadvantage that these brakes do them are difficult to dose, subject to high wear and that the pump shaft remains under tension (Danger of accident).

Aus der WO 97/10437 ist ein Antrieb für eine Tiefbohrlochpumpe bekannt, bei dem eine Flüssigkeitspumpe zum kontrollierten Abbau der gespeicherten Energie aus der Getriebeausgangswelle verwendet wird. Die Flüssigkeitspumpe ist über eine Freilaufkupplung mit einer Welle des Getriebes verbunden. Bei normalem Betrieb, das heißt bei Förderdrehrichtung der Tiefbohrlochpumpe wird keine Drehbewegung von dem Freilauf übertragen. Bei entgegengesetzter Drehrichtung wird die Drehbewegung in die Flüssigkeitspumpe eingeleitet. Hierbei saugt die Flüssigkeitspumpe aus einem Reservoir eine viskose Flüssigkeit an und fördert diese über ein Drosselventil wieder zurück. Das Drosselventil ist so eingestellt bzw. dimensioniert, dass während des Rückdrehens ein allmählicher Abbau der gespeicherten Energie stattfindet und der Antrieb dabei im zulässigen Drehzahlbereich bleibt.WO 97/10437 describes a drive for a deep borehole pump known in which a liquid pump for controlled degradation the stored energy from the transmission output shaft is used. The liquid pump is over one Overrunning clutch connected to a shaft of the transmission. at normal operation, i.e. with the direction of rotation of the Downhole pump will not rotate from the freewheel transfer. In the opposite direction of rotation the Rotational movement initiated in the liquid pump. This sucks the liquid pump from a reservoir a viscous Liquid on and promotes this again via a throttle valve back. The throttle valve is set or dimensioned so that that a gradual degradation of the stored energy takes place and the drive in the permissible speed range remains.

In der DE 534 429 ist eine als Zahnradpumpe ausgebildete Bremsvorrichtung für die getriebene Welle von Differential-Getrieben beschrieben, deren Aufgabe darin besteht, die Drehgeschwindigkeit dieser Welle in beiden Drehrichtungen zu regeln. Das Pumpengehäuse mit den beiden darin umlaufenden Zahnrädern dieser Zahnradpumpe ist über Leitungen, in denen Regelventile und Rückschlagventile angeordnet sind, mit einem externen Ölbehälter verbunden. Diese Bremsvorrichtung ist verhältnismäßig aufwendig, da ein externer Speichertank und externe, durch Ventile abgesicherte Leitungen für die Bereitstellung der Flüssigkeit erforderlich sind. Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Getriebe derart zu gestalten, dass die gespeicherte Energie aus der Abtriebswelle in einfacherer Weise kontrolliert abgebaut werden kann.DE 534 429 embodies a gear pump Braking device for the driven shaft of differential gears described, the task of which is Rotational speed of this shaft in both directions regulate. The pump housing with the two rotating ones inside Gears of this gear pump is on lines in which Control valves and check valves are arranged with a external oil tank connected. This braking device is relatively expensive, since an external storage tank and external lines secured by valves for the Provision of the liquid are required. The invention has for its object the generic To design gearboxes in such a way that the stored energy comes from the output shaft is broken down in a controlled manner in a simpler manner can be.

Diese Aufgabe wird bei einem gattungsgemäßen Getriebe erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Eine vorteilhafte Ausgestaltung der Erfindung ist Gegenstand des Unteranspruches.This task is carried out in a generic transmission according to the invention by the characterizing features of Claim 1 solved. An advantageous embodiment of the Invention is the subject of the dependent claim.

Bei der Erfindung ist in das Getriebe eine Zahnradpumpe integriert, die als Rücklaufbremse wirkt. Durch die Verwendung eines Winkelgetriebes kann die Eingangswelle bei notwendigerweise vertikaler Abtriebswelle horizontal angeordnet werden. Dadurch entsteht insgesamt ein kompaktes Getriebe zum Antrieb einer Tiefbohrlochpumpe.In the invention, a gear pump is in the transmission integrated, which acts as a reverse brake. By using it of an angular gear, the input shaft can necessarily vertically arranged output shaft horizontally become. This creates an overall compact gearbox Drive a deep well pump.

Der Erfindung liegt der Gedanke zugrunde, dass bei einer Zahnradpumpe zur Förderung von Flüssigkeiten bekanntlich die Förderrichtung von der Drehrichtung abhängig ist. Bei der Erfindung wird dieses durch die Anordnung der Zahnradpumpe so ausgenutzt, dass in der Betriebsdrehrichtung des Getriebes an der Einlaufseite Luft angesaugt wird und somit keine Flüssigkeitsförderung stattfindet. Bei entgegengesetzter Drehrichtung, die anfällt, wenn das Getriebe durch die gespeicherte Energie aus der Abtriebswelle des Getriebe und dem damit verbundenen Antriebsgestänge der Tiefbohrlochpumpe angetrieben wird, wird Flüssigkeit gefördert und Druck aufgebaut, da sich die Einlaufseite unterhalb des Flüssigkeitsspiegels befindet. Als Flüssigkeit wird Öl verwendet, das gleichzeitig als Schmieröl zur Schmierung des Getriebes dient. Das Öl wird in einen Druckraum gefördert. Der Druckraum ist über eine Drossel mit dem Getriebeinnenraum verbunden. Die Drossel bewirkt einen Druckanstieg und somit einen kontrollierten Abbau der gespeicherten Energie. Mit steigender Drehzahl erhöht sich das Drehmoment der Zahnradpumpe, welches zum Bremsen ausgenutzt wird.The invention is based on the idea that a Gear pump for conveying liquids is known to be the Delivery direction depends on the direction of rotation. In the Invention this is so by the arrangement of the gear pump exploited that in the operating direction of rotation of the gearbox air is sucked in on the inlet side and therefore none Liquid delivery takes place. In the opposite Direction of rotation that occurs when the gearbox through the stored energy from the output shaft of the transmission and the associated drive linkage of the deep well pump is driven, fluid is conveyed and pressure built up, since the inlet side is below the Liquid level. Oil becomes the liquid used, which also serves as a lubricating oil for lubricating the Gearbox serves. The oil is pumped into a pressure chamber. The The pressure chamber is connected to the gearbox interior via a throttle connected. The throttle causes an increase in pressure and thus a controlled breakdown of the stored energy. With increasing speed increases the torque of the gear pump, which is used for braking.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher erläutert. Es zeigen:

Fig. 1
den Längsschnitt durch ein Getriebe für eine Förderpumpe gemäß dem Schnitt I - I nach Fig. 2 und
Fig. 2
den Schnitt II - II nach Fig. 1.
An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it:
Fig. 1
the longitudinal section through a gear for a feed pump according to section I - I of FIG. 2 and
Fig. 2
the section II - II of FIG. 1st

Das Getriebe ist ein Winkelgetriebe und weist eine horizontale Eingangswelle 2 auf, die mit einem Ende in ein Getriebegehäuse 1 hineinragt und an diesem Ende ein mit einer Außenverzahnung versehenes Kegelritzel 3 trägt. An das außen liegende Ende der Eingangswelle 2 greift ein nicht gezeigter Antrieb, z. B. ein Elektromotor an. Die Eingangswelle 2 ist in zwei Lagern 4.1, 4.2 gelagert, die gleich oder unterschiedlich sein können. The gear is an angular gear and has a horizontal Input shaft 2 on one end in a gear housing 1 protrudes and at this end one with external teeth provided bevel pinion 3 carries. To the outer end of the Input shaft 2 engages a drive, not shown, for. B. a Electric motor. The input shaft 2 is in two bearings 4.1, 4.2 stored, which can be the same or different.

Das Kegelritzel 3 kämmt mit einem mit einer entsprechenden Außenverzahnung versehenen Kegelrad 6, das auf einer vertikal angeordneten, hohlen Abtriebswelle 5 drehfest befestigt ist. Die Abtriebswelle 5 ist in zwei Lagern 7, 8 und in einem Axiallager 9 in dem Getriebegehäuse 1 gelagert. Die Abtriebswelle 5 ist über eine nicht gezeigte Gestängestange mit einer ebenfalls nicht gezeigten, in einem Tiefbohrloch angeordneten Förderpumpe verbunden. Diese Förderpumpe dient der Förderung von Erdöl.The bevel pinion 3 meshes with a corresponding one External toothing provided bevel gear 6, which is on a vertical arranged, hollow output shaft 5 is rotatably attached. The Output shaft 5 is in two bearings 7, 8 and in a thrust bearing 9 stored in the gear housing 1. The output shaft 5 is over a rod rod, not shown, with a likewise Feed pump, not shown, arranged in a deep borehole connected. This feed pump is used to extract petroleum.

Der Innenraum des Getriebegehäuses 1, in dem das Kegelritzel 3 und das Kegelrad 6 umlaufen, ist teilweise bis zu einem konstruktiv festgelegten Flüssigkeitsspiegel mit Schmieröl gefüllt.The interior of the gear housing 1, in which the bevel pinion 3rd and revolve around the bevel gear 6 is partially up to one designed liquid level with lubricating oil filled.

Das Getriebegehäuse 1 ist an der einen Seite durch einen Deckel 19 verschlossen. An die gegenüberliegende Seite sind an das Getriebegehäuse 1 zwei Lagerflansche 12, 14 geschraubt, in denen die die Eingangswelle 2 tragenden Lager 4 vorgesehen sind. Aus dem äußeren Lagerflansch ist die Eingangswelle 2 abgedichtet hinausgeführt.The gear housing 1 is on one side through a cover 19 closed. On the opposite side are on the Gearbox housing 1 screwed two bearing flanges 12, 14 in which the bearings 4 supporting the input shaft 2 are provided. Out the input shaft 2 is sealed to the outer bearing flange led out.

Zwischen den beiden Lagerflanschen 12, 14 ist ein Pumpenflansch 13 eingespannt, der einen inneren Hohlraum aufweist. Innerhalb des Hohlraumes des Pumpenflansches 13 ist auf der Eingangswelle 2 ein erstes Zahnrad 10 drehfest befestigt. Das erste Zahnrad 10 bildet mit einem zweiten in dem Hohlraum des Pumpenflansches 13 angeordneten Zahnrad 11 eine Zahnradpumpe.A pump flange is located between the two bearing flanges 12, 14 13 clamped, which has an inner cavity. Within the cavity of the pump flange 13 is on the input shaft 2, a first gear 10 is attached in a rotationally fixed manner. The first gear 10 forms with a second one in the cavity of the pump flange 13 arranged gear 11 a gear pump.

Der eine Pumpenraum 15 der Zahnradpumpe steht mit dem mit Schmieröl gefüllten Innenraum des Getriebegehäuses 1 unterhalb des Flüssigkeitsspiegels in Verbindung. An den anderen Pumpenraum 16 ist ein Rückflusskanal 18 angeschlossen, der in den Innenraum des Getriebegehäuses 1 oberhalb des Flüssigkeitsspiegels einmündet. In dem Rückflusskanal 18 ist eine Drossel 17 eingebaut.The one pump chamber 15 of the gear pump stands with the Lube-filled interior of the gearbox 1 below of the liquid level in connection. The other Pump chamber 16 is connected to a return flow channel 18, which in the interior of the gear housing 1 above the Liquid level empties. In the return flow channel 18 a throttle 17 installed.

Während des Betriebes der durch das Getriebe angetriebenen Förderpumpe dreht sich zusammen mit der Eingangswelle 2 und dem Kegelritzel 3 das erste Zahnrad 10 der Zahnradpumpe in Richtung des Pfeiles 20. Dabei wird an der Einlaufseite im Pumpenraum 16 Luft angesaugt und durch die Zahnradpumpe in den mit Schmieröl gefüllten Innenraum des Getriebegehäuse 1 gefördert. Während des Betriebes verdrillt sich die Abtriebswelle 5 und die damit verbundene Gestängestange, die zu der Förderpumpe führt. Wird der Antrieb abgeschaltet, wird die so in der Abtriebswelle 5 und der Gestängestange durch Verdrillung gespeicherte Energie freigesetzt. Die freigesetzte Energie dreht über die Abtriebswelle 5 das Kegelritzel 3 und das damit über die Eingangswelle 2 verbundene erste Zahnrad 10 der Zahnradpumpe in Richtung des Pfeiles 21. Bei dieser Drehrichtung der Zahnradpumpe wird der Pumpenraum 15 zur Saugseite. Aus dem Pumpenraum 15, der mit dem Innenraum des Getriebegehäuses 1 unterhalb des Flüssigkeitsspiegel in Verbindung steht, fördert die Zahnradpumpe Schmieröl in den nun als Druckraum wirkenden Pumpenraum 16 und von dort über den Rückflusskanal 18 zurück in den Innenraum des Getriebegehäuses 1 zurück. Durch die in dem Rückflusskanal 18 angeordnete Drossel 17 wird ein Druck aufgebaut, der bewirkt, dass die Energie aus der Abtriebswelle 5 kontrolliert abgebaut wird.During operation of those driven by the gear Feed pump rotates together with the input shaft 2 and the Bevel pinion 3, the first gear 10 of the gear pump in the direction of the arrow 20. In this case, 16 Air sucked in and through the gear pump in the with lubricating oil filled interior of the transmission housing 1 promoted. During the Operation twists the output shaft 5 and thus connected rod that leads to the feed pump. Becomes the drive is switched off, so in the output shaft 5 and energy stored in the rod by twisting released. The released energy turns over Output shaft 5, the bevel pinion 3 and thus over the Input shaft 2 connected first gear 10 of the gear pump in Direction of arrow 21. In this direction of rotation of the Gear pump, the pump chamber 15 becomes the suction side. From the Pump chamber 15, which is connected to the interior of the transmission housing 1 communicates below the liquid level the gear pump lubricating oil in the now acting as a pressure chamber Pump chamber 16 and from there via the return flow channel 18 back into the interior of the transmission housing 1 back. By in the Backflow channel 18 arranged throttle 17 becomes a pressure constructed, which causes the energy from the output shaft 5th is broken down in a controlled manner.

Claims (2)

  1. Transmission for a conveying pump which is placed in a deep borehole and which consists of a gearwheel transmission with a bevel pinion (3), which is arranged on an input shaft (2), and a bevel wheel (6), which is disposed in engagement with the bevel pinion (3) and which is arranged on a vertical driven shaft (5) driving the conveying pump, wherein the bevel pinion (3) and the bevel wheel (6) rotate in an inner chamber partly filled with lubricating oil and wherein the transmission is disposed in connection with a brake, characterised in that a gearwheel (10) is arranged on the input shaft (2) of the transmission and forms together with the second gearwheel (11) a gearwheel pump which acts as a recoil brake and conveys lubricating oil against the operating direction of rotation of the transmission.
  2. Transmission according to claim 1, characterised in that one pump chamber (15) of the gearwheel pump is connected below the liquid level with the inner chamber filled with lubricating oil and the other pump chamber (16) is connected, by way of a throttle (17), above the liquid level with the inner chamber filled with lubricating oil.
EP01103803A 2000-03-08 2001-02-16 Transmission for deep well pump Expired - Lifetime EP1132620B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10011187 2000-03-08
DE10011187A DE10011187A1 (en) 2000-03-08 2000-03-08 Gearbox for a deep borehole pump

Publications (3)

Publication Number Publication Date
EP1132620A2 EP1132620A2 (en) 2001-09-12
EP1132620A3 EP1132620A3 (en) 2001-11-28
EP1132620B1 true EP1132620B1 (en) 2003-04-09

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EP01103803A Expired - Lifetime EP1132620B1 (en) 2000-03-08 2001-02-16 Transmission for deep well pump

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US (1) US6419472B2 (en)
EP (1) EP1132620B1 (en)
AT (1) ATE237078T1 (en)
CA (1) CA2339427C (en)
DE (2) DE10011187A1 (en)

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AU2002951793A0 (en) * 2002-10-02 2002-10-24 Britton Marine (Australia) Pty Ltd Fire, Salvage and Cooling Pump
AU2003265735B2 (en) * 2002-10-02 2008-05-08 Britton Maritime Systems Pty Limited Engine coupled pump with 90 degree gearbox
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Also Published As

Publication number Publication date
EP1132620A3 (en) 2001-11-28
EP1132620A2 (en) 2001-09-12
CA2339427C (en) 2006-10-03
US20010021351A1 (en) 2001-09-13
DE50100148D1 (en) 2003-05-15
ATE237078T1 (en) 2003-04-15
CA2339427A1 (en) 2001-09-08
DE10011187A1 (en) 2001-09-13
US6419472B2 (en) 2002-07-16

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