EP2356339B1 - Clamping device for cylinder bush and its use and flushing pump with a clamping device - Google Patents
Clamping device for cylinder bush and its use and flushing pump with a clamping device Download PDFInfo
- Publication number
- EP2356339B1 EP2356339B1 EP09804237.7A EP09804237A EP2356339B1 EP 2356339 B1 EP2356339 B1 EP 2356339B1 EP 09804237 A EP09804237 A EP 09804237A EP 2356339 B1 EP2356339 B1 EP 2356339B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder liner
- clamping device
- clamping
- cylinder
- measuring
- 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.)
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Links
- 238000011010 flushing procedure Methods 0.000 title description 21
- 238000000034 method Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 210000003128 head Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/164—Stoffing boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
Definitions
- the invention relates to a clamping device for cylinder liners of a pump system and a piston or plunger pump for conveying rinsing fluid when drilling holes in particular in the field of oil and gas extraction.
- This pump system consists of a pump unit and a driving rotary drive device.
- the invention relates to the use of a clamping device in a piston or plunger pump.
- the injection of the mud or drilling fluid through the pump system when drilling holes in the drill string or borehole pursues several goals.
- the drilling fluid is used for discharging the excavated cuttings or debris, the cooling and lubricating of the drilling tool located at the bottom of the hole or its drive.
- the pressure generated in the borehole must balance with the gases and liquids in the surrounding rock.
- pressure and flow are generated by the movement of one or more displacers (pistons) that create a periodically changing, outwardly sealed working space.
- These reciprocating engines are characterized in that they the rotational movement of the rotary drive device via a crank mechanism in an axial movement that moves the piston, implemented.
- a variation is the execution of the piston as a plunger there.
- the working space is formed by the cylinder liner and the piston moving in it.
- the cylinder liner in its particular application in rinse pumps has features compared to e.g. to internal combustion engines or other piston pumps.
- these cylinder liners are subject to increased wear due to the extremely aggressive and, in particular, solids-laden abrasive medium, the drilling fluid.
- the pressure and volume flow of a rinsing pump can not be adjusted exclusively by the variation of the speed, but also by the variation of the piston used. This is done by inserting different pistons with matching cylinder liners into the pumps.
- the cylinder liner must be pressed with a defined contact force against the receptacle to ensure the function of the local seal. Both components form the high pressure section of the System. Leaks in this area are both dangerous and costly.
- Both the work environment and the existing tool must be considered extremely rough in the drilling industry.
- the existing drilling fluid is usually aggressive.
- another requirement is a fastener that is robust and corrosion resistant.
- cylinder liners are connected via three different systems to the pressurized part of the rinsing pump, called the water part.
- the first system has a conical flank wing clamp in which the contact force is provided by a cone.
- the contact pressure is generated by screws that pull the clamp around the cylinder liner and the receptacle.
- the clamp lies with its straight edge on the cylinder liner and with the conical part on the corresponding counterpart on the receptacle.
- the wing clamps have the great disadvantage that they are very bulky and the torque can be applied only very inaccurate over a torque wrench on the cylinder liner. In addition, this factor scatters strongly due to the conical surface, which can be worn and / or soiled (oily), which has a direct influence on the transmitted contact force.
- the assembly of the clamp is extremely power consuming and carries a certain risk of injury. A check of the contact pressure is not possible without renewed tightening.
- the second system has a hydraulically pre-tensioned pin with spring clamp.
- the bearing bolts are elongated with a hydraulic pump or the hydraulic force acts against separate spring package and thus generates a deflection.
- the system is bolted torque-free. After releasing the pressure, the required contact pressure is purely mechanical in the system.
- the hydraulic system offers the great advantage of an exact contact force of the cylinder liner, which is also referred to as a liner.
- a liner which is also referred to as a liner.
- the disadvantage however, that cylinder liner and clamping element in two crane strokes and thus must be lifted separately into it.
- a hydraulic pump and hydraulic oil must be available.
- the hydraulic components and in particular the filler neck tend to be damaged or susceptible to interference and repair. Due to the more complex structure, the system is about twice as expensive as the wing clamp with liner holder.
- a subsequent control of the contact force is also not possible here, although there is the risk of loosening or loosening of the cylinder liner or the liner due to vibration through the drilling process or the flushing process.
- the third system clamps the cylinder liner by an external thread.
- the clamp has an externally threaded member which is slipped over the cylinder liner and supported against it. Together, these elements are screwed into an inner thread attached to the water part, wherein the required contact force is applied by the pitch of the thread.
- This system is both mechanically very simple and easy to use. Through the thread a very uniform contact force is applied to the seal. However, the only but very imprecise way of applying torque is to continue hammering the nut with a hammer for as long as the mechanic's power allows. The only control is the leak control during operation. The thread is also susceptible to corrosion and damage, which, with the concomitant wear to an even greater dispersion of Contact force leads. In addition, the force of the mechanic provides a barely calculable factor.
- DE 3831909 A1 discloses a hydraulic cylinder with a cylinder tube and an end flange with guide bore for a piston rod.
- the end flange is inserted with a plug-in socket in the cylinder tube.
- the cylinder tube is surrounded by a clamping ring in the region of the plug-in socket. Further, orthogonal to the longitudinal axis of the guide bore mounting holes for receiving clamping screws are provided, which penetrate the clamping ring, the cylinder tube and the plug-in socket.
- This pipe / flange connection is used as a pneumatic or hydraulic motor, in particular as a drive for swing arms in robotics.
- the end flange and the plug-in socket is described as a one-piece component and together have the guide bore for the piston rod, wherein in the guide bore and on the plug-in sealing rings are mounted with which a perfect seal of the plug-in socket with the cylinder tube and the piston rod is reached in the piston rod guide.
- the clamping ring is secured by means of a centering pin on the cylinder tube for introducing the mounting holes against rotation, for which purpose the centering pin penetrates through the cylinder tube through into the plug-in socket.
- D1 Disadvantage of D1 is the leadership of the piston rod in the cylinder, which leads to a statically indeterminate storage of the piston rod, whereby increased wear equal to several wearing parts occurs. Furthermore, this guide leads to a time-consuming piston change. A quick assembly and disassembly of the piston and the cylinder liner is prevented. Also, the print media supply is expensive and can not be used in a pump with integrated print media supply. Another disadvantage is the orthogonal to the longitudinal axis of the plug-in action of the described pipe / flange connection.
- the US 4,981,401 discloses an adjustable tension screw with adjustable stress level.
- the document describes a screw which is inserted into an axial cavity and with which the voltage within the component can be measured.
- the screw also contains a display that - once the screw is in use - indicates that a pre-set value has been reached.
- the adjustable bolt of the D 2 shows a complex mechanism that allows incorrect operation and is not suitable for applications for conveying rinsing fluid when drilling holes due to the prevailing harsh conditions.
- the WO 2008/074428 A1 (D3) describes a fluid working machine for compressing fluids, preferably high pressure gases, with a linear motor, at least one cylinder, a solid-state piston axially movable in the cylinder, or an axially movable fluid piston and at least one between the cylinder and the solid-state piston or the liquid piston formed compression space is equipped.
- the linear motor transmits a translatory drive force to the solid-state piston or the liquid piston.
- the liquid piston or "liquid piston” assumes the function of a solid-state piston, wherein the liquid piston is driven translationally by the Wandermangnetfeld generated by means of coils of the linear motor.
- the object of the invention is therefore to provide a fastening device which avoids the disadvantages of the prior art and at the same time is inexpensive and easy to use and a uniform and defined contact pressure of the sealing surface of the cylinder liner, and thus their function guaranteed. Furthermore, it is an object of the invention to provide a suitable piston or plunger pump and a method for mounting.
- the inventive clamping device for a cylinder liner of a piston or plunger pump is characterized in that on the piston or plunger pump a cylinder sleeve receptacle and a clamping element are provided and the cylinder liner or a part of the cylinder liner between the clamping element and the cylinder liner receptacle is arranged and the clamping element and the Cylinder socket receptacle are interconnected by connecting means, wherein the connecting means or the clamping element having means for measuring or controlling at least one strain.
- a preferred clamping device is characterized in that the outer diameter of the cylinder liner or a part of the cylinder liner greater than the inner diameter of the cylinder liner receptacle and / or the clamping element is formed, whereby advantageously the use of existing or available liner or cylinder liners is possible. Furthermore, the handling is facilitated and the clamping device optimized in its design for use. As a rule, cylinder liners having an inner diameter of 3 to 10 inches, preferably 5 to 7.5 inches are used.
- a further advantageous embodiment of the clamping device according to the invention provides that the clamping element is formed as part of the cylinder liner. As a result, the handling during assembly or disassembly can be improved due to fewer parts.
- a particularly preferred embodiment of the clamping device according to the invention is characterized in that a guide element for the cylinder liner is preferably arranged in the form of a sleeve on the clamping element, whereby the cylinder liner during assembly and disassembly can be performed and handled better and easier and against tilting but also damage is better protected.
- Another very advantageous clamping device is characterized in that at least one device for the installation and removal preferably a lifting eye is arranged on the clamping element and / or the guide element and / or the cylinder liner. This is easier to handle, especially if the arrangement is tailored to the design of the device. The optimal vote of the arrangement of the installation and removal of the clamping element, the guide element and / or the cylinder liner is given when the lifting of the cylinder liner this is aligned approximately axially to the cylinder liner receptacle.
- a preferred clamping device is designed such that the cylinder liner receptacle is formed as part of the piston or Plungerpumpengephaseuses or the valve block of the piston or plunger pump, whereby the advantage of an improved and simpler design is connected.
- a further advantageous clamping device provides that the connecting means each consist of a fastening element, preferably a stud, with an axially extending bore, in the form of a shaft, in which a measuring or control device is arranged, consisting of a projecting beyond the end face of the fastener Measuring pin, which is preferably anchored at its inner end to the shaft and at the protruding end a rotatable display element which is freely rotatable when the fastener is unloaded, but cooperates with the end face of the fastener under pressure and is secured against rotation when the fastener is subjected to a predetermined tensile load or strain.
- no tool or additional measuring devices is necessary to perform a measurement and control of the strain or the contact pressure of the cylinder liner during assembly or operation of the mud pump.
- a particularly advantageously configured clamping device is characterized in that a further measuring or control device is arranged on a measuring or control device, consisting of a protruding over the end face of the first measuring pin second measuring pin, wherein the first shaft-shaped measuring pin has an axially extending bore and wherein the second measuring pin is anchored at its inner end preferably on the shank of the first measuring pin or the shaft of the fastener and at the protruding end a second rotatable display element which is freely rotatable when the fastener is unloaded, but with the end face of the first Measuring pin or the first display element cooperates under pressure and is secured against rotation when the first measuring pin is subjected to a second predetermined tensile load, which is greater than the first predetermined tensile load or strain voltage.
- a preferred variant of the clamping device according to the invention provides that cylinder liners are used with the same outer diameter and different inner diameters, which advantageously the same clamping device for cylinder liners with different sized pistons or plungers and thus can be used in different performance ranges of the flushing pumps.
- a piston or plunger is arranged, which is tuned to the inner diameter of the cylinder liner, cooperates with the cylinder liner and is connected to a drive.
- a seal is arranged between the cylinder liner and the wear plate or between the cylinder liner to the valve block.
- the embodiment of the inventive clamping device are arranged on the outside of the cylinder liner and / or inside in the cylinder liner receptacle indentations.
- the recesses facilitate the guidance during assembly and disassembly of the cylinder liners, because the friction surfaces are reduced while maintaining optimum guidance is still guaranteed.
- the piston or plunger pump according to the invention for use as a flushing pump has at least one of the above-described advantageous clamping devices for a cylinder liner.
- the disadvantages of the flushing pumps are avoided according to the prior art and optimizes the transport of flushing of the type mentioned by lower cost, especially in the easier assembly and disassembly of the cylinder liners.
- the inventive method for mounting a cylinder liner of a piston or plunger pump is characterized by the advantageous use of one of the described clamping devices, whereby a simpler and safer assembly is achieved.
- FIG. 1 shows a clamping device for a cylinder liner 5 as part of a rinsing pump.
- the front part of a flushing pump is shown in section, wherein 100 represents a flushing pump with the clamping device 5 according to the invention.
- a rinsing pump can have several cylinder liners with the corresponding pistons or plungers.
- the piston rod 36 in. It consists of a crosshead rod 30, on which a baffle plate 35 is attached, which protects the underlying part of the pump from flushing outlet in a seal failure.
- a connecting member 33 is attached via a wing clamp.
- the actual piston rod 36 is connected to the connecting member 33 .
- the piston nut 38 At the front end of the actual piston 14 is attached via the piston nut 38 .
- Link 33, wing clamp 34 and piston nut 38 are used for quick assembly and disassembly of the piston 14 and cylinder liner. 5
- the cylinder liner 5 seals via its sealing surface 20 to the valve block 25 .
- the sealing package is as follows: In front of the cylinder liner 5 and on its sealing surface 20 , a seal 19 is arranged. This presses on a wear plate 17, which serves to prevent Austechniker and damage from the valve block 25 . The wear plate 17 also seals via a seal 18 to the actual valve block.
- the cylinder liner 5 is pressed against the seal assembly via the cylinder liner receptacle 2 and fasteners 3 , whereby the required pressure must be applied to the seal face 20 or seal 18 .
- the illustrated device is in the FIGS. 2 and 3 shown enlarged and described in more detail.
- the piston 14 is placed in a translatory movement via the crosshead rod 30 and the crank drive connected thereto and the rotary drive device.
- flushing is sucked in and expressed.
- the fluid is sucked in via the flushing flow 21 into the suction-side valve block 22 via the inner valve 23 .
- In the forward stroke of this valve 23 closes again and the fluid is under pressure through the pressure-side valve 24 in the central Pressed pressure line 26 , which connects all other cylinders not shown here among themselves.
- the fluid leaves at 27 the flushing pump.
- valve blocks 22 and 25 are interconnected and screwed together via the screw 28 to the front panel 1 of the Spülpumpegekoruses 13 .
- the entire housing 13 is mounted on a stable frame or carriage 32
- FIG. 2 shows a clamping device for cylinder liners a flushing pump.
- the cylinder sleeve receiver 2 On the front plate 1 of a pump housing 13, which is only partially shown, of a rinsing pump, the cylinder sleeve receiver 2 is fastened.
- the cylinder sleeve receptacle 2 receives the front part of the liner or the cylinder liner 5 and forms together with the water part of the flushing pump a pressure chamber, which is designed in this embodiment for up to 350 bar operating pressure.
- the cylinder liner 5 is guided by a clamping element 4 , to which a further sleeve-shaped cylinder liner guide element 8 is connected on the pump side. This cylinder liner guide element 8 is fixedly connected to the clamping element 4 .
- a lifting eye 6 is arranged at the upper part of the cylinder liner guide element 8 , with which the clamping element 4 including the cylinder liner 5 therein lighter with the cylinder liner receptacle 2 and the valve block 25 or the front panel 1 of the pump housing can be connected.
- the lifting eye 6 can also be arranged on the clamping element 4 and advantageously serves as an assembly aid for the cylinder liner 5. Particularly advantageous is the arrangement of the lifting eye 6 on the clamping element 4 or the cylinder liner guide element 8 such that the cylinder liner 5 in horizontal position in the lifting position Position is more easily and without tilting or damage in the cylinder liner receptacle 2 to be introduced. It is also possible to arrange a plurality of lifting eyes as an assembly aid on the clamping element 4 and / or the cylinder liner guide element 8 .
- the inner diameter of the cylinder liner 5 of the matching piston (not shown) is guided axially.
- the inner diameter of the cylinder liner 5 may have different diameters.
- the outer diameter of the cylinder liner 5 corresponds in this embodiment, with the exception of a clamping shoulder 7, the inner diameter of the clamping element 4 and the cylinder liner guide element 8.
- the valve block 25 side facing the cylinder liner 5 in a partial region, the clamping shoulder 7, an outer diameter the is greater than the inner diameter of the clamping element 4 and the cylinder liner guide member 8 and the inner diameter of the cylinder liner receptacle 2.
- the cylinder liner guide member 8 on the one Side and the cylinder liner shots 2 firmly clamped on the other side.
- four studs are used.
- the stud bolts are bolted to the cylinder liner receptacle 2 .
- the fastening elements 3 and studs have on their side facing the cylinder liner receptacle 2 on a head 11 of the fastener 3 , on whose end face 10 a measuring device 9 protrudes.
- the measuring device 9 is a device for measuring or checking at least one expansion stress.
- the strain measurement of the control of the contact pressure of the sealing surface of the cylinder liner 5 is used on the pressure-carrying element of the flushing pump as in this example, the wear plate 17 or the valve block 25.
- Such fasteners 3 with a torque or voltage measuring device 9 on the head are usually as Called Rotabolt.
- the part of the cylinder liner 5, which has a larger outer diameter than the rest of the cylinder liner 5 is referred to in this case as a clamping shoulder 7 of the cylinder liner 5 .
- the clamping shoulder 7 is designed such that it is clamped tight and tight between cylinder sleeve receptacle 2 and clamping element 4 .
- FIG. 3 represents the clamping device in cooperation with the cylinder liner in the section there. This is clearly visible as the cylinder liner 5 is pressed over the clamping shoulder 7 via the clamping element 4 against the valve block 25 .
- the cylinder liner 5 and / or the cylinder liner receptacle 2 can, as shown in this example, indentations on the mating surface 15 , which advantageously reduce the friction surface and allow easier guidance during installation and removal of the cylinder liner 5 .
- valve block 25 and cylinder liner 5 In order to create a pressure-tight space between the two elements valve block 25 and cylinder liner 5 , the following arrangement of sealing elements is located in this example.
- the cylinder liner 5 presses with the sealing surface 20 against the wear plate 17.
- the seal 19 is compressed.
- the cylinder liner 5 is guided on one side in the sleeve 8 of the clamping element 4 and guided on the other side in the cylinder liner receptacle 2 . This is connected via the screw 12 fixed to the valve block 25 and can be removed during disassembly on the Abdrückbohrept 16 .
- valve block 25 is connected via the screw 28 to the front plate 1 of the flushing pump.
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- Engineering & Computer Science (AREA)
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Description
Die Erfindung betrifft eine Klemmvorrichtung für Zylinderbuchsen eines Pumpensystems sowie eine Kolben- oder Plungerpumpe zum Fördern von Spülflüssigkeit beim Niederbringen von Bohrungen insbesondere auf dem Gebiet der Erdöl- und Erdgasförderung. Dieses Pumpensystem besteht aus einem Pumpenaggregat und einer antreibenden Drehantriebseinrichtung. Des Weiteren betrifft die Erfindung die Verwendung einer Klemmvorrichtung in einer Kolben- oder Plungerpumpe.The invention relates to a clamping device for cylinder liners of a pump system and a piston or plunger pump for conveying rinsing fluid when drilling holes in particular in the field of oil and gas extraction. This pump system consists of a pump unit and a driving rotary drive device. Furthermore, the invention relates to the use of a clamping device in a piston or plunger pump.
Das Einpressen der Spülung bzw. Bohrspülung durch das Pumpensystem beim Niederbringen von Bohrungen in den Bohrstrang bzw. das Bohrloch verfolgt mehrere Ziele. Die Bohrspülung dient dem Austragen des abgebauten Bohrkleins bzw. Abraums, dem kühlen und schmieren des an der Bohrlochsohle befindlichen Bohrwerkzeuges bzw. dessen Antriebs. Der im Bohrloch erzeugte Druck muss einen Ausgleich mit den im umliegenden Gestein befindlichen Gasen und Flüssigkeiten schaffen.The injection of the mud or drilling fluid through the pump system when drilling holes in the drill string or borehole pursues several goals. The drilling fluid is used for discharging the excavated cuttings or debris, the cooling and lubricating of the drilling tool located at the bottom of the hole or its drive. The pressure generated in the borehole must balance with the gases and liquids in the surrounding rock.
Zum Erzeugen des nötigen Volumenstroms, der im Bereich von 3000 l/min liegt und zum Erzeugen des erforderlichen Druckes, der bis zu 500 bar betragen kann, sind äußerst leistungsstarke Pumpensysteme erforderlich.To generate the required volume flow, which is in the range of 3000 l / min and to generate the required pressure, which can be up to 500 bar, extremely powerful pump systems are required.
Standardmäßig werden Druck und Volumenstrom über die Bewegung eines oder mehrerer Verdränger (Kolben), die einen sich periodisch verändernden, nach außen abgedichteten Arbeitsraum schaffen, erzeugt.By default, pressure and flow are generated by the movement of one or more displacers (pistons) that create a periodically changing, outwardly sealed working space.
Diese Hubkolbenmaschinen zeichnen sich dadurch aus, dass sie die rotierende Bewegung der Drehantriebseinrichtung über einen Kurbeltrieb in eine axiale Bewegung, die den Kolben bewegt, umsetzten. Eine Variation stellt die Ausführung des Kolbens als Plunger da.These reciprocating engines are characterized in that they the rotational movement of the rotary drive device via a crank mechanism in an axial movement that moves the piston, implemented. A variation is the execution of the piston as a plunger there.
Der Arbeitsraum wird dabei durch die Zylinderbuchse und der in ihr verfahrenden Kolben gebildet.The working space is formed by the cylinder liner and the piston moving in it.
Die Zylinderbuchse in ihrer speziellen Anwendung in Spülpumpen weist Besonderheiten im Vergleich zu z.B. zu Verbrennungsmotoren oder anderen Kolbenpumpen auf.The cylinder liner in its particular application in rinse pumps has features compared to e.g. to internal combustion engines or other piston pumps.
Zum einen sind diese Zylinderbuchsen erhöhtem Verschleiß durch das äußerst aggressive und insbesondere durch Feststoffe abrasive Fördermedium, der Bohrspülung, unterzogen.On the one hand, these cylinder liners are subject to increased wear due to the extremely aggressive and, in particular, solids-laden abrasive medium, the drilling fluid.
Zum anderen kann der Druck und Volumenstrom an einer Spülpumpe nicht ausschließlich durch die Variation der Drehzahl, sondern ebenfalls durch die Variation der eingesetzten Kolben eingestellt werden. Dies erfolgt, indem verschiedene Kolben mit passenden Zylinderbuchsen in die Pumpen eingesetzt werden.On the other hand, the pressure and volume flow of a rinsing pump can not be adjusted exclusively by the variation of the speed, but also by the variation of the piston used. This is done by inserting different pistons with matching cylinder liners into the pumps.
Somit stellen sich an die Zylinderbuchse und im Besonderen an ihre Befestigung folgende Anforderungen:Thus, the following requirements apply to the cylinder liner and in particular to their attachment:
Aufgrund von Verschleiß und Ein- bzw. Umstellung des Systems auf andere Drücke bzw. Volumina, muss die Befestigung kurze Rüstzeiten und geringen Arbeitsaufwand ermöglichen.Due to wear and tear and conversion of the system to other pressures or volumes, the attachment must enable short set-up times and low labor input.
Die Zylinderbuchse muss mit einer definierten Anpresskraft gegen die Aufnahme gepresst werden um die Funktion der dortigen Dichtung zu gewährleisten. Beide Komponenten bilden den Hochdruckteilbereich des Systems. Leckagen in diesem Bereich sind sowohl gefährlich als auch kostspielig.The cylinder liner must be pressed with a defined contact force against the receptacle to ensure the function of the local seal. Both components form the high pressure section of the System. Leaks in this area are both dangerous and costly.
Sowohl die Arbeitsumgebung als auch das vorhandenes Werkzeug müssen im Bereich der Bohrindustrie als äußerst rau bzw. grob bezeichnet werden. Darüber hinaus ist die vorhandene Bohrspülung in der Regel aggressiv. Somit stellt sich als weitere Anforderung an eine Befestigungsvorrichtung, das Sie robust und korrosionsbeständig ist.Both the work environment and the existing tool must be considered extremely rough in the drilling industry. In addition, the existing drilling fluid is usually aggressive. Thus, another requirement is a fastener that is robust and corrosion resistant.
Nach dem bekannten Stand der Technik werden Zylinderbuchsen über drei verschiedene Systeme mit dem druckführenden Teil der Spülpumpe, genannt Wasserteil, verbunden.According to the known state of the art, cylinder liners are connected via three different systems to the pressurized part of the rinsing pump, called the water part.
Das erste System weist eine Flügelklemme mit konischer Flanke auf, bei der die Anpresskraft durch einen Konus erbracht wird. Die Anpresskraft wird durch Schrauben erzeugt, die die Klemme um die Zylinderbuchse und die Aufnahme ziehen. Die Klemme liegt mit ihrer geraden Flanke an der Zylinderbuchse an und mit dem konischen Teil auf dem entsprechenden Gegenstück an der Aufnahme.The first system has a conical flank wing clamp in which the contact force is provided by a cone. The contact pressure is generated by screws that pull the clamp around the cylinder liner and the receptacle. The clamp lies with its straight edge on the cylinder liner and with the conical part on the corresponding counterpart on the receptacle.
Die Flügelklemmen haben den großen Nachteil, dass sie sehr unhandlich sind und das Drehmoment nur sehr ungenau über einen Drehmomentschlüssel auf die Zylinderbuchse aufgebracht werden kann. Darüber hinaus streut dieser Faktor durch die konische Fläche stark, diese kann abgenutzt und oder verschmutzt (ölig) sein, welches direkten Einfluss auf die übertragende Anpresskraft hat. Die Montage der Klemme ist äußerst kraftaufwendig und birgt eine gewisse Verletzungsgefahr. Eine Kontrolle der Anpresskraft ist nicht ohne erneutes Anziehen möglich.The wing clamps have the great disadvantage that they are very bulky and the torque can be applied only very inaccurate over a torque wrench on the cylinder liner. In addition, this factor scatters strongly due to the conical surface, which can be worn and / or soiled (oily), which has a direct influence on the transmitted contact force. The assembly of the clamp is extremely power consuming and carries a certain risk of injury. A check of the contact pressure is not possible without renewed tightening.
Das zweite System weist einen hydraulisch vorgespannten Bolzen mit Federklemmung auf. Bei diesem System werden die tragenden Bolzen mit einer hydraulischen Pumpe gelängt oder die hydraulische Kraft wirkt gegen ein separates Federpaket und erzeugt so eine Auslenkung. Das System wird drehmomentfrei verschraubt. Nach Ablassen des Druckes ist die erforderliche Anpresskraft rein mechanisch im System vorhanden.The second system has a hydraulically pre-tensioned pin with spring clamp. In this system, the bearing bolts are elongated with a hydraulic pump or the hydraulic force acts against separate spring package and thus generates a deflection. The system is bolted torque-free. After releasing the pressure, the required contact pressure is purely mechanical in the system.
Das hydraulische System bietet den großen Vorteil einer exakten Anpresskraft der Zylinderbuchse, die auch als Liner bezeichnet wird. Nachteilig ist allerdings, dass Zylinderbuchse und Klemmelement in zwei Kranhüben und somit getrennt hinein gehoben werden müssen. Zusätzlich muss eine Hydraulikpumpe und Hydrauliköl vorhanden sein. Die hydraulischen Komponenten sowie insbesondere der Einfüllstutzen neigen zur Beschädigung oder sind stör- und reparaturanfällig. Aufgrund des komplexeren Aufbaus ist das System ca. doppelt so teuer wie die Flügelklemme mit Lineraufnahme. Eine spätere Kontrolle der Anpresskraft ist auch hier nicht möglich, obwohl aufgrund von Vibration durch den Bohrvorgang bzw. den Spülungsvorgang die Gefahr des Lösens bzw. der Lockerung der Zylinderbuchse respektive des Liners besteht.The hydraulic system offers the great advantage of an exact contact force of the cylinder liner, which is also referred to as a liner. The disadvantage, however, that cylinder liner and clamping element in two crane strokes and thus must be lifted separately into it. In addition, a hydraulic pump and hydraulic oil must be available. The hydraulic components and in particular the filler neck tend to be damaged or susceptible to interference and repair. Due to the more complex structure, the system is about twice as expensive as the wing clamp with liner holder. A subsequent control of the contact force is also not possible here, although there is the risk of loosening or loosening of the cylinder liner or the liner due to vibration through the drilling process or the flushing process.
Das dritte System klemmt die Zylinderbuchse durch ein außen liegendes Gewinde. Die Klemme weist ein Element mit Außengewinde auf, welches über die Zylinderbuchse gestülpt wird und sich an ihr abstützt. Zusammen werden diese Elemente in ein am Wasserteil befestigten Innengewinde eingeschraubt, wobei durch die Steigung des Gewindes die erforderliche Anpresskraft aufgebracht wird.The third system clamps the cylinder liner by an external thread. The clamp has an externally threaded member which is slipped over the cylinder liner and supported against it. Together, these elements are screwed into an inner thread attached to the water part, wherein the required contact force is applied by the pitch of the thread.
Dieses System ist sowohl mechanisch sehr einfach aufgebaut als auch einfach in der Handhabung. Durch das Gewinde wird eine sehr gleichmäßige Anpresskraft auf die Dichtung aufgebracht. Allerdings besteht die einzige aber sehr ungenaue Möglichkeit der Aufbringung von Drehmoment darin, die Mutter mit einem Hammer so lange weiter zu schlagen, wie es die Kraft des Monteurs erlaubt. Die einzige Kontrolle stellt die Leckkontrolle im Betrieb da. Das Gewinde ist darüber hinaus anfällig für Korrosion und Beschädigung, was mit dem einhergehenden Verschleiß zu einer noch größeren Streuung der Anpresskraft führt. Darüber hinaus stellt die Kraft des Monteurs einen kaum zu kalkulierenden Faktor da.This system is both mechanically very simple and easy to use. Through the thread a very uniform contact force is applied to the seal. However, the only but very imprecise way of applying torque is to continue hammering the nut with a hammer for as long as the mechanic's power allows. The only control is the leak control during operation. The thread is also susceptible to corrosion and damage, which, with the concomitant wear to an even greater dispersion of Contact force leads. In addition, the force of the mechanic provides a barely calculable factor.
In der
Nachteil der D1 ist die Führung der Kolbenstange in dem Zylinder, die zu einer statisch unbestimmten Lagerung der Kolbenstange führt, wodurch ein erhöhter Verschleiß gleich mehrerer Verschleißteile auftritt. Des Weiteren führt diese Führung zu einem zeitintensiven Kolbenwechsel. Eine schnelle Montage und Demontage des Kolbens und der Zylinderbuchse wird dadurch verhindert. Auch ist die Druckmedienzuführung aufwendig und kann nicht in einer Pumpe mit integrierter Druckmedienzuführung eingesetzt werden. Weiterhin nachteilig ist die orthogonal zur Längsachse der Einsteckbuchse gerichtete Wirkung der beschriebenen Rohr/Flansch-Verbindung.Disadvantage of D1 is the leadership of the piston rod in the cylinder, which leads to a statically indeterminate storage of the piston rod, whereby increased wear equal to several wearing parts occurs. Furthermore, this guide leads to a time-consuming piston change. A quick assembly and disassembly of the piston and the cylinder liner is prevented. Also, the print media supply is expensive and can not be used in a pump with integrated print media supply. Another disadvantage is the orthogonal to the longitudinal axis of the plug-in action of the described pipe / flange connection.
Die
Der einstellbare Bolzen der D 2 zeigt eine aufwendige Mechanik, die Fehlbedienungen zulässt und für Einsatzgebiete zum Fördern von Spülflüssigkeit beim Niederbringen von Bohrungen aufgrund der dort herrschenden rauen Bedingungen nicht geeignet ist.The adjustable bolt of the
Die
Eine besondere Befestigung des Zylinders der Fluidarbeitsmaschine, die geeignet ist, kurze Rüstzeiten und geringen Arbeitsaufwand zumal in einer rauen Umgebung zu gewährleisten, ist bei dieser Druckschrift nicht offenbart.A special attachment of the cylinder of the fluid working machine, which is suitable to ensure short set-up times and low labor costs, especially in a harsh environment, is not disclosed in this document.
Aufgabe der Erfindung ist es daher, eine Befestigungsvorrichtung anzugeben, die die Nachteile des Standes der Technik vermeidet und gleichzeitig kostengünstig und einfach in der Handhabung ist sowie eine gleichmäßige und definierte Anpresskraft der Dichtfläche der Zylinderbuchse, und somit ihre Funktion, gewährleistet. Des Weiteren ist es Aufgabe der Erfindung eine hierfür geeignete Kolben- oder Plungerpumpe sowie eine Verfahren zur Montage anzugeben.The object of the invention is therefore to provide a fastening device which avoids the disadvantages of the prior art and at the same time is inexpensive and easy to use and a uniform and defined contact pressure of the sealing surface of the cylinder liner, and thus their function guaranteed. Furthermore, it is an object of the invention to provide a suitable piston or plunger pump and a method for mounting.
Die Aufgabe wird durch die Merkmale der Ansprüche 1 und 13 und 14 gelöst. Die Unteransprüche geben weitere vorteilhafte Ausgestaltungen der Erfindung an.The object is solved by the features of
Die erfinderische Klemmvorrichtung für eine Zylinderbuchse einer Kolben- oder Plungerpumpe ist dadurch gekennzeichnet, dass an der Kolben- oder Plungerpumpe eine Zylinderbuchsenaufnahme sowie ein Spannelement vorgesehen sind und die Zylinderbuchse oder ein Teil der Zylinderbuchse zwischen dem Spannelement und der Zylinderbuchsenaufnahme angeordnet ist und das Spannelement und die Zylinderbuchsenaufnahme durch Verbindungsmittel miteinander verbunden sind, wobei die Verbindungsmittel oder das Spannelement Einrichtungen zur Messung oder Kontrolle mindestens einer Dehnungsspannung aufweisen. Mit dieser Vorrichtung ist es vorteilhaft möglich, die Anpresskraft der Dichtfläche der Zylinderbuchse gleichmäßig zu gestalten und während der Montage und des Betriebes der Pumpe einfach, zuverlässig und schnell sowie ohne zusätzliche Werkzeuge oder Messeinrichtungen die Anpresskraft bzw. Dehnungsspannung zu messen und somit zu kontrollieren.The inventive clamping device for a cylinder liner of a piston or plunger pump is characterized in that on the piston or plunger pump a cylinder sleeve receptacle and a clamping element are provided and the cylinder liner or a part of the cylinder liner between the clamping element and the cylinder liner receptacle is arranged and the clamping element and the Cylinder socket receptacle are interconnected by connecting means, wherein the connecting means or the clamping element having means for measuring or controlling at least one strain. With this device, it is advantageously possible to make the contact pressure of the sealing surface of the cylinder liner uniform and to measure during assembly and operation of the pump easily, reliably and quickly and without additional tools or measuring devices, the contact force or strain and thus to control.
Eine bevorzugte Klemmvorrichtung ist dadurch gekennzeichnet, dass der Außendurchmesser der Zylinderbuchse oder eines Teils der Zylinderbuchse größer als der Innendurchmesser der Zylinderbuchsenaufnahme und / oder des Spannelementes ausgebildet ist, wodurch vorteilhaft der Einsatz vorhandener bzw. verfügbarer Liner bzw. Zylinderbuchsen möglich ist. Des Weiteren wird die Handhabung erleichtert und die Klemmvorrichtung in ihrer Ausgestaltung für den Einsatz optimiert. In der Regel kommen Zylinderbuchsen mit einem Innendurchmesser von 3 bis 10 Zoll, vorzugsweise von 5 bis 7,5 Zoll zum Einsatz.A preferred clamping device is characterized in that the outer diameter of the cylinder liner or a part of the cylinder liner greater than the inner diameter of the cylinder liner receptacle and / or the clamping element is formed, whereby advantageously the use of existing or available liner or cylinder liners is possible. Furthermore, the handling is facilitated and the clamping device optimized in its design for use. As a rule, cylinder liners having an inner diameter of 3 to 10 inches, preferably 5 to 7.5 inches are used.
Eine weitere vorteilhafte Ausgestaltung der erfindungsgemäßen Klemmvorrichtung sieht vor, dass das Spannelement als Teil der Zylinderbuchse ausgebildet ist. Dadurch kann die Handhabung bei der Montage bzw. Demontage aufgrund geringerer Teileanzahl verbessert werden.A further advantageous embodiment of the clamping device according to the invention provides that the clamping element is formed as part of the cylinder liner. As a result, the handling during assembly or disassembly can be improved due to fewer parts.
Eine besonders bevorzugte Ausgestaltung der erfindungsgemäßen Klemmvorrichtung ist dadurch gekennzeichnet, dass an dem Spannelement ein Führungselement für die Zylinderbuchse vorzugsweise in Form einer Hülse angeordnet ist, womit die Zylinderbuchse bei der Montage und Demontage besser und leichter geführt und gehandhabt werden kann und gegen Verkantungen aber auch Beschädigungen besser geschützt ist.A particularly preferred embodiment of the clamping device according to the invention is characterized in that a guide element for the cylinder liner is preferably arranged in the form of a sleeve on the clamping element, whereby the cylinder liner during assembly and disassembly can be performed and handled better and easier and against tilting but also damage is better protected.
Eine weitere sehr vorteilhafte erfindungsgemäße Klemmvorrichtung ist dadurch gekennzeichnet, dass an dem Spannelement und / oder dem Führungselement und / oder der Zylinderbuchse mindestens eine Einrichtung für den Ein- und Ausbau vorzugsweise ein Hebeauge angeordnet ist. Damit ist eine leichtere Handhabung verbunden, insbesondere wenn die Anordnung auf die Bauweise der Vorrichtung abgestimmt ist. Die optimale Abstimmung der Anordnung der Ein- und Ausbaueinrichtung an dem Spannelement, dem Führungselement und/oder der Zylinderbuchse ist dann gegeben, wenn beim Anheben der Zylinderbuchse diese in etwa axial zur Zylinderbuchsenaufnahme ausgerichtet ist.Another very advantageous clamping device according to the invention is characterized in that at least one device for the installation and removal preferably a lifting eye is arranged on the clamping element and / or the guide element and / or the cylinder liner. This is easier to handle, especially if the arrangement is tailored to the design of the device. The optimal vote of the arrangement of the installation and removal of the clamping element, the guide element and / or the cylinder liner is given when the lifting of the cylinder liner this is aligned approximately axially to the cylinder liner receptacle.
Eine bevorzugte Klemmvorrichtung ist derart ausgestaltet, dass die Zylinderbuchsenaufnahme als Teil des Kolben- oder Plungerpumpengehäuses oder des Ventilblockes der Kolben- oder Plungerpumpe ausgebildet ist, womit der Vorteil einer verbesserten und einfacheren Bauart verbunden ist.A preferred clamping device is designed such that the cylinder liner receptacle is formed as part of the piston or Plungerpumpengehäuses or the valve block of the piston or plunger pump, whereby the advantage of an improved and simpler design is connected.
Eine weitere vorteilhafte Klemmvorrichtung sieht vor, dass die Verbindungsmittel jeweils aus einem Befestigungselement vorzugsweise einem Stehbolzen, mit einer sich axial erstreckenden Bohrung, in Form eines Schaftes bestehen, in welchem eine Mess- oder Kontrolleinrichtung angeordnet ist, bestehend aus einem über die Stirnfläche des Befestigungselementes herausstehenden Messstift, der an seinem inneren Ende vorzugsweise an dem Schaft verankert ist und an dem hervorstehenden Ende ein drehbares Anzeigeelement aufweist, welches frei drehbar ist, wenn das Befestigungselement unbelastet ist, aber mit der Stirnfläche des Befestigungselementes unter Druck zusammenwirkt und gegen Verdrehen gesichert ist, wenn das Befestigungselement einer vorbestimmten Zugbelastung oder Dehnungsspannung ausgesetzt ist. Durch diese bevorzugte Ausgestaltung ist kein Werkzeug oder zusätzliche Messeinrichtungen notwendig, um eine Messung und Kontrolle der Dehnungsspannung bzw. des Anpressdruckes der Zylinderbuchse während der Montage oder des Betriebes der Spülungspumpe durchzuführen.A further advantageous clamping device provides that the connecting means each consist of a fastening element, preferably a stud, with an axially extending bore, in the form of a shaft, in which a measuring or control device is arranged, consisting of a projecting beyond the end face of the fastener Measuring pin, which is preferably anchored at its inner end to the shaft and at the protruding end a rotatable display element which is freely rotatable when the fastener is unloaded, but cooperates with the end face of the fastener under pressure and is secured against rotation when the fastener is subjected to a predetermined tensile load or strain. By this preferred embodiment, no tool or additional measuring devices is necessary to perform a measurement and control of the strain or the contact pressure of the cylinder liner during assembly or operation of the mud pump.
Eine besonders vorteilhaft ausgestaltete Klemmvorrichtung ist gekennzeichnet dadurch, dass an einer Mess- oder Kontrolleinrichtung eine weitere Mess- oder Kontrolleinrichtung angeordnet ist, bestehend aus einem über die Stirnfläche des ersten Messstiftes herausstehenden zweiten Messstift, wobei der erste schaftförmige Messstift eine sich axial erstreckende Bohrung aufweist und wobei der zweite Messstift an seinem inneren Ende vorzugsweise am Schaft des ersten Messstiftes oder dem Schaft des Befestigungselementes verankert ist und an dem hervorstehenden Ende ein zweites drehbares Anzeigeelement aufweist, welches frei drehbar ist, wenn das Befestigungselement unbelastet ist, aber mit der Stirnfläche des ersten Messstiftes oder dem ersten Anzeigeelement unter Druck zusammenwirkt und gegen Verdrehen gesichert ist, wenn der erste Messstift einer zweiten vorbestimmten Zugbelastung ausgesetzt ist, die größer als die erste vorbestimmte Zugbelastung oder Dehnungsspannung ist. Mit dieser bevorzugten Klemmvorrichtung kann nicht nur eine bestimmte Minimalkraft sondern auch eine Maximalkraft gemessen werden, die vor allem die Kontrolle der Überbeanspruchung der Klemmvorrichtung oder der Zylinderbuchse ermöglicht. Hiermit wird zusätzlich zu der Kontrolle aller Befestigungselemente auf gleichmäßige Dehnungsspannung und damit Anpresskraft der Zylinderbuchse die Kontrolle der ersten Messeinrichtung ermöglicht.A particularly advantageously configured clamping device is characterized in that a further measuring or control device is arranged on a measuring or control device, consisting of a protruding over the end face of the first measuring pin second measuring pin, wherein the first shaft-shaped measuring pin has an axially extending bore and wherein the second measuring pin is anchored at its inner end preferably on the shank of the first measuring pin or the shaft of the fastener and at the protruding end a second rotatable display element which is freely rotatable when the fastener is unloaded, but with the end face of the first Measuring pin or the first display element cooperates under pressure and is secured against rotation when the first measuring pin is subjected to a second predetermined tensile load, which is greater than the first predetermined tensile load or strain voltage. With this preferred clamping device, not only a certain minimum force but also a maximum force can be measured, which allows above all the control of the overuse of the clamping device or the cylinder liner. This makes it possible to control the first measuring device in addition to the control of all fasteners to uniform strain and thus contact pressure of the cylinder liner.
Eine bevorzugte Variante der erfindungsgemäßen Klemmvorrichtung sieht vor, dass Zylinderbuchsen mit gleichem Außendurchmesser und unterschiedlichen Innendurchmessern einsetzbar sind, womit in vorteilhafter Weise die gleiche Klemmvorrichtung für Zylinderbuchsen mit unterschiedlich großen Kolben bzw. Plungern und damit in unterschiedlichen Leistungsbereichen der Spülungspumpen verwendet werden kann.
In der jeweiligen Zylinderbuchse ist ein Kolben oder Plunger angeordnet, der auf den Innendurchmesser der Zylinderbuchse abgestimmt ist, mit der Zylinderbuchse zusammenwirkt und mit einem Antrieb verbunden ist.A preferred variant of the clamping device according to the invention provides that cylinder liners are used with the same outer diameter and different inner diameters, which advantageously the same clamping device for cylinder liners with different sized pistons or plungers and thus can be used in different performance ranges of the flushing pumps.
In the respective cylinder liner, a piston or plunger is arranged, which is tuned to the inner diameter of the cylinder liner, cooperates with the cylinder liner and is connected to a drive.
In weiteren vorteilhaften Ausgestaltungen der erfindungsgemäßen Klemmvorrichtung ist zwischen der Zylinderbuchse und der Verschleißplatte oder zwischen der Zylinderbuchse dem Ventilblock eine Dichtung angeordnet. Damit wird die Dichtung der Zylinderbuchse bzw. des Spülungssystems verbessert und optimiert.In further advantageous embodiments of the clamping device according to the invention, a seal is arranged between the cylinder liner and the wear plate or between the cylinder liner to the valve block. Thus, the seal of the cylinder liner and the flushing system is improved and optimized.
Vorteilhaft ist auch die Ausgestaltung der erfinderischen Klemmvorrichtung, an der außen an der Zylinderbuchse und / oder innen in der Zylinderbuchsenaufnahme Einbuchtungen angeordnet sind. Die Einbuchtungen erleichtern die Führung bei der Montage- und Demontage der Zylinderbuchsen, da die Reibungsflächen reduziert werden wobei jedoch eine optimale Führung weiterhin gewährleistet ist.Also advantageous is the embodiment of the inventive clamping device, are arranged on the outside of the cylinder liner and / or inside in the cylinder liner receptacle indentations. The recesses facilitate the guidance during assembly and disassembly of the cylinder liners, because the friction surfaces are reduced while maintaining optimum guidance is still guaranteed.
Die erfindungsgemäße Kolben- oder Plungerpumpe zur Verwendung als Spülpumpe weist mindestens eine der oben beschriebenen vorteilhaften Klemmvorrichtungen für eine Zylinderbuchse auf. Damit werden die Nachteile der Spülungspumpen nach dem Stand der Technik vermieden und die Beförderung von Spülung der eingangs genannten Art durch geringeren Aufwand insbesondere bei der erleichterten Montage und Demontage der Zylinderbuchsen optimiert.The piston or plunger pump according to the invention for use as a flushing pump has at least one of the above-described advantageous clamping devices for a cylinder liner. Thus, the disadvantages of the flushing pumps are avoided according to the prior art and optimizes the transport of flushing of the type mentioned by lower cost, especially in the easier assembly and disassembly of the cylinder liners.
Das erfindungsgemäße Verfahren zur Montage einer Zylinderbuchse einer Kolben- oder Plungerpumpe ist durch die vorteilhafte Verwendung einer der beschriebenen Klemmvorrichtungen gekennzeichnet, wodurch eine einfachere und sicherere Montage erreicht wird.The inventive method for mounting a cylinder liner of a piston or plunger pump is characterized by the advantageous use of one of the described clamping devices, whereby a simpler and safer assembly is achieved.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.
Es zeigen
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eine Klemmvorrichtung einer Zylinderbuchse als Teil einer Spülpumpe,Figur 1 -
eine Klemmvorrichtung einer Zylinderbuchse einer Spülpumpe in Schrägansicht undFigur 2 -
die Klemmvorrichtung zusammen mit einer Zylinderbuchse im Schnitt.Figur 3
Show it
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FIG. 1 a clamping device of a cylinder liner as part of a rinsing pump, -
FIG. 2 a clamping device of a cylinder liner of a flushing pump in an oblique view and -
FIG. 3 the clamping device together with a cylinder liner in section.
In das geschnittene und nur teilweise dargestellte Pumpengehäuse 13 ragt von links die Kolbenstange 36 herein. Sie besteht aus einer Kreuzkopfstange 30, auf der eine Prallscheibe 35 befestigt ist, die den dahinter liegenden Teil der Pumpe vor Spülungsaustritt bei einem Dichtungsversagen schützt. An die Kreuzkopfstange 30 ist ein Verbindungsglied 33 über eine Flügelklemme befestigt. Über eine weitere Flügelklemme 34 ist die eigentliche Kolbenstange 36 mit dem Verbindungsglied 33 verbunden. An dessen vorderem Ende ist der eigentliche Kolben 14 über die Kolbenmutter 38 befestigt. Verbindungsglied 33, Flügelklemme 34 und Kolbenmutter 38 dienen der schnellen Montage und Demontage von Kolben 14 und Zylinderbuchse 5. In the cut and only partially shown
Die Zylinderbuchse 5 dichtet über seine Dichtfläche 20 zum Ventilblock 25 ab. Im dargestellten Fall stellt sich das Dichtungspaket wie folgt dar: Vor der Zylinderbuchse 5 bzw. an seiner Dichtfläche 20 ist eine Dichtung 19 angeordnet. Diese drückt auf eine Verschleißplatte 17, die dazu dient, Ausspüler und Beschädigungen vom Ventilblock 25 abzuhalten. Die Verschleißplatte 17 dichtet ebenfalls über eine Dichtung 18 zum eigentlichen Ventilblock ab. Die Zylinderbuchse 5 wird dabei über die Zylinderbuchsenaufnahme 2 und Befestigungselemente 3 gegen das Dichtungspaket gepresst, wobei der erforderliche Druck auf die Dichtfläche 20 bzw. Dichtung 18 aufgebracht werden muss. Die dargestellte Vorrichtung wird in den
Der Kolben 14 wird über die Kreuzkopfstange 30 und den daran angeschlossenen Kurbeltrieb und der Drehantriebseinrichtung in eine translatorische Bewegung versetzt. Durch die Vor- und Zurückbewegung des Kolbens 14 und die Herstellung eines druckdichten Raumes über die Dichtfläche 37 wird Spülung angesaugt und ausgedrückt. Das Fluid wird dabei über den Spülungsfluss 21 in den saugseitigen Ventilblock 22 über das innen liegende Ventil 23 angesaugt. Im Vorhub schließt dieses Ventil 23 wieder und das Fluid wird unter Druck durch das druckseitige Ventil 24 in die zentrale Druckleitung 26 gepresst, die alle weiteren hier nicht dargestellten Zylinder untereinander verbindet. Das Fluid verlässt bei 27 die Spülpumpe.The
Die Ventilblöcke 22 und 25 sind untereinander verbunden und zusammen über die Verschraubung 28 an die Frontplatte 1 des Spülpumpegehäuses 13 geschraubt. Das gesamte Gehäuse 13 ist auf einem stabilen Rahmen oder Schlitten 32 montiertThe valve blocks 22 and 25 are interconnected and screwed together via the
In der Zylinderbuchse 5 wird der zu dieser passende Kolben (nicht dargestellt) axial geführt. Je nach Bedarf kann der Innendurchmesser der Zylinderbuchse 5 unterschiedliche Durchmesser aufweisen. Der Außendurchmesser der Zylinderbuchse 5 entspricht in diesem Ausführungsbeispiel mit Ausnahme einer Klemmschulter 7 dem Innendurchmesser des Spannelementes 4 sowie dem Zylinderbuchsenführungselement 8. In seinem vorderen, dem Ventilblock 25 zugewandten Seite weist die Zylinderbuchse 5 in einem Teilbereich, der Klemmschulter 7, einen Außendurchmesser auf, der größer ist als der Innendurchmesser des Spannelementes 4 und des Zylinderbuchsenführungselementes 8 sowie des Innendurchmessers der Zylinderbuchsenaufnahme 2. Mittels der Stehbolzen als Befestigungselemente 3 wird der den größeren Außendurchmesser aufweisende Teil der Zylinderbuchse 5 zwischen dem Spannelement 4 und in diesem vorzugsweise Ausführungsbeispiel dem Zylinderbuchsenführungselement 8 auf der einen Seite und der Zylinderbuchseaufnahmen 2 auf der anderen Seite fest verklemmt. In diesem vorteilhaften Ausführungsbeispiel finden vier Stehbolzen Verwendung. Es können jedoch auch drei oder mehr als vier Verbindungselemente 3 Verwendung finden. Die Stehbolzen werden mit der Zylinderbuchsenaufnahme 2 verschraubt. Die Befestigungselemente 3 bzw. Stehbolzen weisen auf ihrer der Zylinderbuchseaufnahme 2 entgegen gesetzten Seite einen Kopf 11 des Befestigungselementes 3 auf, an dessen Stirnseite 10 eine Messeinrichtung 9 herausragt. Bei der Messeinrichtung 9 handelt es sich um eine Einrichtung zur Messung oder Kontrolle von mindestens einer Dehnungsspannung. Insbesondere dient die Dehnungsmessung der Kontrolle der Anpresskraft der Dichtfläche der Zylinderbuchse 5 an dem druckführenden Element der Spülungspumpe wie in diesem Beispiel der Verschleißplatte 17 oder dem Ventilblock 25. Derartige Befestigungselemente 3 mit einer Drehmoment- bzw. Spannungsmesseinrichtung 9 am Kopf werden in der Regel auch als Rotabolt bezeichnet.In the cylinder liner 5 of the matching piston (not shown) is guided axially. Depending on requirements, the inner diameter of the cylinder liner 5 may have different diameters. The outer diameter of the cylinder liner 5 corresponds in this embodiment, with the exception of a clamping
Der Teil der Zylinderbuchse 5, der einen größeren Außendurchmesser aufweist als der Rest der Zylinderbuchse 5 wird in diesem Fall als Klemmschulter 7 der Zylinderbuchse 5 bezeichnet. Die Klemmschulter 7 ist derart ausgestaltet, dass sie fest und dicht zwischen Zylinderbuchsenaufnahme 2 und Spannelement 4 einzuklemmen ist.The part of the cylinder liner 5, which has a larger outer diameter than the rest of the cylinder liner 5 is referred to in this case as a clamping
Um einen druckdichten Raum zwischen den beiden Elementen Ventilblock 25 und Zylinderbuchse 5 zu schaffen, befindet sich in diesem Beispiel folgendes Arrangement von Dichtelementen. Die Zylinderbuchse 5 drückt mit der Dichtfläche 20 gegen die Verschleißplatte 17. Dabei wird die Dichtung 19 komprimiert.In order to create a pressure-tight space between the two
Die Zylinderbuchse 5 wird dabei auf der einen Seite in der Hülse 8 des Spannelementes 4 geführt und auf der anderen Seite in die Zylinderbuchsenaufnahme 2 geführt. Diese ist über die Verschraubung 12 fest mit dem Ventilblock 25 verbunden und kann bei der Demontage über die Abdrückbohrungen 16 entfernt werden.The cylinder liner 5 is guided on one side in the
Des Weiteren ist der Ventilblock 25 über die Verschraubung 28 mit der Frontplatte 1 der Spülpumpe verbunden.Furthermore, the
Claims (14)
- A clamping device comprising a clamping element (4), connecting means (3), a cylinder liner mounting (2) and a cylinder liner (5) of a reciprocating or plunger pump, characterized in that the cylinder liner (5) or a part of the cylinder liner (5) is arranged between the clamping element (4) and the cylinder liner mounting (2), and the clamping element (4) and the cylinder liner mounting (2) are connected to one another by connecting means (3), wherein the connecting means (3) are arranged axially with respect to the longitudinal axis of the cylinder liner (5), and the connecting means (3) or the clamping element (4) has devices (9) for measuring or checking at least one tensile stress.
- The clamping device as claimed in claim 1, characterized in that the outside diameter of the cylinder liner (5) or a part of the cylinder liner (5) is designed to be greater than the inside diameter of the cylinder liner mounting (2) and/or of the clamping element (4).
- The clamping device as claimed in claim 1 or 2, characterized in that the clamping element (4) is designed as part of the cylinder liner (5).
- The clamping device as claimed in one of claims 1 to 3, characterized in that a guide element (8) for the cylinder liner (5) is arranged on the clamping element (4).
- The clamping device as claimed in one of claims 1 to 4, characterized in that at least one device for fitting and removal, preferably a lifting eye (6), is arranged on the clamping element (4) and/or the guide element (8) and/or the cylinder liner (5).
- The clamping device as claimed in one of claims 1 to 5, characterized in that the cylinder liner mounting is designed as part of the reciprocating or plunger pump housing (13) or of the valve block (25) of the reciprocating or plunger pump.
- The clamping device as claimed in one of claims 1 to 6, characterized in that the connecting means (3) in each case consist of a fixing element in the form of a shaft, preferably a stud, with an axially extending hole, in which is arranged a measuring or checking device (9) consisting of a measuring pin which projects beyond the face (10) of the fixing element and which, at its inner end, is preferably anchored to the shaft and, at the protruding end, has a rotatable indicating element which can rotate freely when the fixing element is not loaded but acts together with the face surface of the fixing element under pressure and has a rotational locking device, wherein this can be adjusted to a predefined tensile load or tensile stress of the fixing element.
- The clamping device as claimed in one of claims 1 to 7, characterized in that a further measuring or checking device consisting of a second measuring pin which projects beyond the face of the first measuring pin is arranged on a measuring or checking device (9), wherein the first measuring pin, which is in the form of a shaft, has an axially extending hole and wherein, at its inner end, the second measuring pin is anchored to the shaft of the first measuring pin or to the shaft of the fixing element and, at the protruding end, has a second rotatable indicating element which can rotate freely when the fixing element is not loaded but acts together with the face surface of the first measuring pin or the first indicating element under pressure and has a rotational locking device, wherein this can be adjusted to a second predefined tensile load of the first measuring pin which is greater than the first predefined tensile load or tensile stress.
- The clamping device as claimed in one of claims 1 to 8, characterized in that cylinder liners (5) with the same outside diameter and different inside diameters can be used.
- The clamping device as claimed in one of claims 1 to 9, characterized in that a piston (14) or plunger, the outside diameter of which is matched to the inside diameter of the cylinder liner (5) and is connected to a drive, is arranged in the cylinder liner (5).
- The clamping device as claimed in one of claims 1 to 10, characterized in that a seal (19) is arranged between the cylinder liner (5) and the wear plate (17) or the valve block (25).
- The clamping device as claimed in one of claims 1 to 11, characterized in that recesses are arranged on the outside of the cylinder liner (5) and/or on the inside of the cylinder liner mounting (2).
- A reciprocating or plunger pump for use as a mud pump having at least one clamping device for a cylinder liner (5) as claimed in one of claims 1 to 12.
- A method for fitting a cylinder liner of a reciprocating or plunger pump, characterized in that a clamping device as claimed in one of claims 1 to 12 is used.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008060659A DE102008060659A1 (en) | 2008-12-08 | 2008-12-08 | Clamping device for cylinder liners and their use and rinsing pump with clamping device |
PCT/DE2009/001705 WO2010066234A1 (en) | 2008-12-08 | 2009-12-03 | Clamping mechanism for cylinder liners, use thereof, and mud pump comprising a clamping mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2356339A1 EP2356339A1 (en) | 2011-08-17 |
EP2356339B1 true EP2356339B1 (en) | 2013-04-17 |
Family
ID=42145575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09804237.7A Active EP2356339B1 (en) | 2008-12-08 | 2009-12-03 | Clamping device for cylinder bush and its use and flushing pump with a clamping device |
Country Status (4)
Country | Link |
---|---|
US (1) | US8511218B2 (en) |
EP (1) | EP2356339B1 (en) |
DE (1) | DE102008060659A1 (en) |
WO (1) | WO2010066234A1 (en) |
Cited By (2)
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US8511218B2 (en) | 2008-12-08 | 2013-08-20 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for cylinder sleeves and use thereof, and mud pump having a clamping |
CN106092760A (en) * | 2016-08-18 | 2016-11-09 | 无锡昌华机电制造有限公司 | Gas cylinder by hydrostatic pressure test Special pressing head |
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DE102011056712B4 (en) | 2011-12-20 | 2023-03-16 | Bentec Gmbh Drilling & Oilfield Systems | Valve cover for a mud pump in deep drilling operations |
WO2013143108A1 (en) * | 2012-03-30 | 2013-10-03 | Sichuan Honghua Petroleum Equipment Co., Ltd. | Assembly for mounting cylinder liners in drilling pump |
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US11578711B2 (en) | 2019-11-18 | 2023-02-14 | Kerr Machine Co. | Fluid routing plug |
US20220397107A1 (en) | 2019-11-18 | 2022-12-15 | Kerr Machine Co. | Fluid end assembly |
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Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2823689A (en) * | 1954-06-18 | 1958-02-18 | Donald V Healy | Electro-hydraulic servo valve |
DE1061625B (en) | 1955-08-03 | 1959-07-16 | Bendix Aviat Corp | Electro-hydraulic relay arrangement |
AT269655B (en) | 1966-05-20 | 1969-03-25 | Wirth Alfred & Co Kg | Pump, in particular flushing pump for drilling rigs |
US3820381A (en) | 1972-06-19 | 1974-06-28 | Gulf Oil Corp | Fastener system and method for inspecting same |
US4131050A (en) | 1977-07-05 | 1978-12-26 | The Solon Manufacturing Company | Visual load indicator |
DE3171047D1 (en) * | 1980-10-08 | 1985-07-25 | Rotabolt Ltd | Fastener device |
US4773272A (en) * | 1986-11-25 | 1988-09-27 | Trungold Emanuel H | Apparatus and method for measuring bolt tension in situ |
DE3831909A1 (en) * | 1988-09-20 | 1990-03-22 | Srt Steuerungs Regelungstech | Pipe/flange connection, particularly for hydraulic or pneumatic cylinders |
US4981404A (en) * | 1989-10-16 | 1991-01-01 | Arrow Support Systems Co. | Tension bolt having adjustable stress level |
GB8926729D0 (en) * | 1989-11-27 | 1990-01-17 | Rotabolt Ltd | Load-indicating fasteners |
GB9325388D0 (en) * | 1993-12-11 | 1994-02-16 | T M Kennedy & Co Ltd | Apparatus for reciprocating pumps |
DE19837692C2 (en) * | 1998-08-19 | 2003-04-03 | Bentec Gmbh Drilling & Oilfield Systems | Drilling device, drilling rig and method for drilling an exploration and production well |
GB0410263D0 (en) * | 2004-05-10 | 2004-06-09 | Spicket Valves & Pumps Ltd | Valve cap |
DE102006060147B4 (en) * | 2006-12-18 | 2009-05-14 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid-working machine |
DE102008060659A1 (en) | 2008-12-08 | 2010-06-10 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for cylinder liners and their use and rinsing pump with clamping device |
DE102009039022A1 (en) * | 2009-08-28 | 2011-03-03 | Bentec Gmbh Drilling & Oilfield Systems | Handling device for drill pipe, in particular so-called pipe handler or so-called top drive with pipehandler, and operating method therefor |
-
2008
- 2008-12-08 DE DE102008060659A patent/DE102008060659A1/en not_active Withdrawn
-
2009
- 2009-12-03 WO PCT/DE2009/001705 patent/WO2010066234A1/en active Application Filing
- 2009-12-03 EP EP09804237.7A patent/EP2356339B1/en active Active
-
2011
- 2011-06-06 US US13/154,198 patent/US8511218B2/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8511218B2 (en) | 2008-12-08 | 2013-08-20 | Bentec Gmbh Drilling & Oilfield Systems | Clamping device for cylinder sleeves and use thereof, and mud pump having a clamping |
CN106092760A (en) * | 2016-08-18 | 2016-11-09 | 无锡昌华机电制造有限公司 | Gas cylinder by hydrostatic pressure test Special pressing head |
CN106092760B (en) * | 2016-08-18 | 2019-05-31 | 无锡昌华机电制造有限公司 | Gas cylinder by hydrostatic pressure test Special pressing head |
Also Published As
Publication number | Publication date |
---|---|
US8511218B2 (en) | 2013-08-20 |
WO2010066234A1 (en) | 2010-06-17 |
EP2356339A1 (en) | 2011-08-17 |
DE102008060659A1 (en) | 2010-06-10 |
US20110236238A1 (en) | 2011-09-29 |
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