US20130129535A1 - Pump - Google Patents
Pump Download PDFInfo
- Publication number
- US20130129535A1 US20130129535A1 US13/813,791 US201113813791A US2013129535A1 US 20130129535 A1 US20130129535 A1 US 20130129535A1 US 201113813791 A US201113813791 A US 201113813791A US 2013129535 A1 US2013129535 A1 US 2013129535A1
- Authority
- US
- United States
- Prior art keywords
- fixing
- pump body
- pump
- drive mechanism
- body drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
-
- 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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
-
- 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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/047—Pumps having electric drive
-
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Definitions
- the invention relates to a pump, in particular a diaphragm pump, for conveying a fluid.
- the fluid to be conveyed is taken to mean a medium to be conveyed, such as a liquid, a gas, a gas mixture or a liquid/gas mixture.
- the pump is preferably used in continuous operation in small sewage plants. Small sewage plants of this type are often used to purify waste water in buildings which do not have their own sewage system connection.
- the pump is preferably used to introduce air into the waste water.
- the waste water is thus enriched with oxygen. Bacteria are thus activated for the biological or bacterial purification of the waste water.
- the pump is therefore preferably an aeration pump.
- a large number of pumps are known from the prior art and are used in small sewage plants, for example.
- the disadvantage in these known pumps is that their wearing parts—such as their diaphragm—often have to be exchanged after a few years.
- the exchange of the wearing parts is relatively time-consuming Technical skill is generally necessary to exchange the wearing parts.
- the invention is therefore based on the object of providing a pump, the wearing parts of which can be exchanged particularly easily and quickly.
- the core of the invention is that the at least one pump body drive mechanism can be locally fixed by the at least one fixing device. In particular, this prevents the fixed pump body drive mechanism being able to unintentionally move or be moved during maintenance work. A simple exchange of a pump body is thus possible, for example,
- a pump body drive mechanism comprising at least one drive magnet is attracted by at least one stationary drive magnet and is fixed thereto.
- the release of the magnets is generally very difficult.
- a pump body drive mechanism of this type preferably has at least a first drive magnet. It is advantageous if the at least one pump body drive device furthermore has at least one second drive magnet arranged adjacent to the at least one pump body drive mechanism to move the at least one pump body drive mechanism along the displacement path. Another configuration of the pump body drive device is alternatively possible.
- the at least one pump body may, for example, be configured as a diaphragm. However, it may also be a piston. Two pump bodies are preferably provided. It is also advantageous if two fixing devices are provided. These can preferably be actuated independently of one another. The fixing devices may, however, also be coupled to one another for common actuation.
- the configuration according to claim 2 allow simple actuation or handling of the fixing device.
- An actuating device is preferably provided for each fixing device. However, two fixing devices may also be actuated by one actuating device.
- the actuating device may be displaceably or pivotably mounted on the pump housing. It preferably comprises at least one actuating means. Examples of possible actuating means are an actuating handle or a handle trough. The actuating means may, however, have been produced by knurling.
- the actuating device may be mounted on the inside or outside of the pump housing. With inside mounting of the actuating device, the actuating means is preferably configured as an actuating handle or lever, which can then project from the pump housing through a recess formed in the pump housing.
- the configuration according to claim 3 leads to an extremely functionally reliable fixing of the pump body drive mechanism.
- the fixing part may engage, preferably positively, in the pump body drive mechanism.
- the pump body drive mechanism then preferably has at least one corresponding recess or opening for this.
- the fixing part may, however, also rest on the outside of the pump body drive mechanism. It may rest thereon laterally or on the end face.
- the fixing part may, however, also partially encompass the pump body drive mechanism in a clamp-like manner
- Each fixing device preferably has one or two fixing parts.
- the configuration according to claim 4 in a functionally reliable manner, prevents a further displacement of the pump body drive mechanism along its displacement path.
- the pump body drive mechanism may also be fixed, however, alternatively or additionally, transverse to its displacement path.
- the at least one fixing part is preferably configured in such a way that, in its fixing position, it fixes the pump body drive mechanism in the direction of its displacement path and preferably also transverse to its displacement path.
- the fixings acting in different directions can be achieved by common fixing parts or by fixing parts which are separate from one another.
- the configuration according to claim 5 allows an extremely precise placing of the pump body drive mechanism. It can thus be guided precisely to its desired fixing position.
- the configuration according to claim 8 results in an extremely high functional reliability. Moreover, a pump of this type is extremely easy to handle during maintenance.
- the configuration according to claim 9 produces an extremely functionally reliable fixing device.
- the coupling wedge and the fixing part configured in the manner of a wedge have a sliding connection with one another by means of their wedge faces. An actuation of the coupling wedge leads to a movement of the fixing part, whereby a movement deflection takes place.
- Two wedge mechanisms per fixing device are preferably provided.
- Each fixing device preferably also has two fixing parts, it being possible for a spring element to be provided between these fixing parts for the movement thereof into their release position.
- the spring element may be configured as a leaf spring, helical spring, elastomer spring or as a spring block. Instead of spring elements, corresponding guides may also be provided, which bring about a return of the fixing parts. A swallowtail guide may, for example, be used for this.
- the fixing parts, in the fixing position preferably rest laterally on the pump body drive mechanism.
- the configuration according to claim 10 also leads to an extremely reliable fixing of the pump body drive mechanism.
- the encompassing body in the fixing position, preferably encompasses the pump body drive mechanism in the region of its longitudinal sides.
- a positive connection is preferably present between the encompassing body and the pump body drive mechanism.
- the configuration according to claim 11 leads to an easy and functionally reliable actuation of the fixing part.
- the link is preferably configured in or on the actuating device, while the link pin is connected to the fixing part.
- the link is configured on the fixing part, while the link pin is provided on the actuating device.
- the configuration according to claim 12 is particularly operationally reliable.
- the configuration according to claim 13 has an extremely simple structure.
- the link is then preferably configured as a link cam or control cam.
- a spring element, which brings the fixing part into contact with the link cam, is preferably associated with each fixing part.
- the configuration according to claim 14 is again extremely simple with regard to structure. It is also extremely assembly-friendly and functionally reliable.
- the configuration according to claim 15 leads to an extremely high operating reliability.
- FIG. 1 shows a perspective view of a pump according to the invention in accordance with a first embodiment
- FIG. 2 shows a section through the pump shown in FIG. 1 ,
- FIG. 3 shows an exploded view of the pump shown in FIGS. 1 and 2 ,
- FIG. 4 shows a view which shows the actuating device or fixing device of the pump shown in FIGS. 1 to 3 ,
- FIG. 5 shows a section along the section line V-V shown in FIG. 4 .
- FIGS. 6 and 7 show sections through the pump shown in FIGS. 1 to 3 , the pump body drive mechanism being released.
- FIG. 8 shows a view of the pump shown in FIGS. 1 to 3 , the fixing device being located in its centring position
- FIG. 9 shows a section along the section line IX-IX in FIG. 8 .
- FIGS. 10 and 11 show sections through the pump shown in FIGS. 1 to 3 , the fixing device being located in its fixing position
- FIG. 12 shows a perspective view of a pump according to the invention, in accordance with a second embodiment
- FIG. 13 shows an exploded view of the pump shown in FIG. 12 .
- FIG. 14 shows a perspective view of the fixing devices, the actuating devices and the pump body drive mechanism of the pump shown in FIGS. 12 and 13 ,
- FIG. 15 shows a perspective view of the actuating device of the pump shown in FIGS. 12 and 13 .
- FIG. 16 shows a view of the pump shown in FIGS. 12 and 13 , the fixing device being in its release position
- FIGS. 17 and 18 show sections through the pump shown in FIGS. 12 and 13 , the fixing device being in a centring position
- FIG. 19 shows a section through the pump shown in FIGS. 12 and 13 , the fixing device being in its fixing position
- FIG. 20 shows a perspective view of a pump according to the invention in accordance with a third embodiment
- FIG. 21 shows a section through the pump shown in FIG. 20 .
- FIG. 22 shows a further section through the pump shown in FIG. 20 , the pump body drive mechanism being released
- FIG. 23 shows a perspective view of the actuating device of the pump shown in FIGS. 20 to 22 .
- FIG. 24 shows a perspective view of the fixing devices and the actuating device of the pump shown in FIGS. 20 to 22 .
- FIG. 25 shows a section corresponding to FIG. 22 , the fixing devices being in their fixing position
- FIG. 26 shows a perspective view of a pump according to the invention in accordance with a fourth embodiment
- FIGS. 27 and 28 show sections through the pump shown in FIG. 26 , the pump body drive mechanism being released
- FIG. 29 shows a perspective view of the fixing devices shown in FIGS. 26 to 28 , the actuating devices and the pump body drive mechanism,
- FIG. 30 shows a section through the fixing devices, the actuating devices and the pump body drive mechanism of the pump shown in FIG. 26 , the pump body drive mechanism being released,
- FIG. 31 shows a section corresponding to FIG. 30 , the fixing devices being in their centring position
- FIG. 32 shows a section corresponding to FIGS. 30 and 31 , the fixing devices being in their fixing position.
- a pump according to the first embodiment comprises a pump housing 1 , diaphragms 2 and a diaphragm drive mechanism 3 for actuating the diaphragms 2 .
- the diaphragms 2 and the diaphragm drive mechanism 3 are housed in the pump housing 1 .
- the diaphragms 2 and the pump housing 1 together limit pumping chambers 4 , which can be changed with regard to their volume.
- the diaphragms 2 are flexible and impermeable to fluid.
- the pump housing 1 comprises a panel 5 , which is U-shaped in design.
- the panel 5 therefore has a U-base 6 and two U-legs 7 projecting perpendicularly from the U-base 6 .
- the open sides of the panel 5 are in each case closed when the pump is assembled.
- a first panel cover (not shown) is provided for this.
- two second panel covers (not shown) are provided, which then oppose one another and rest laterally on the U-base 6 and the U-legs 7 .
- the panel covers are preferably screwed to the panel 5 by screws. They together form a U-shape, the first panel cover forming the U-base.
- the U-base 6 , the U-legs 7 and the panel covers are plate-shaped in each case. They together limit a cuboid receiving space 8 and together form the pump housing 1 .
- each yoke 9 is E-shaped and therefore has a central, finger-like projection 10 . Wound around each projection 10 is a coil 11 , by which electrical current can be carried.
- the projections 10 in each case form a core for the coils 11 and run toward one another.
- the yokes 9 and the coils 11 form electric drive magnets 12 .
- the diaphragm drive mechanism 3 Arranged between the yokes 9 and the associated coils 11 is the diaphragm drive mechanism 3 , which is configured as an armature, shuttle or the like.
- the armature 3 is moveable and plate-like. It has a rectangular, elongate shape and therefore a longitudinal centre axis 13 .
- the armature 3 can be axially displaced along its longitudinal centre axis 13 . It comprises a frame 14 with two window-like openings 15 , which are arranged next to one another in the direction of the longitudinal centre axis 13 .
- a permanent magnet 16 is inserted in each opening 15 . Opposite poles of the permanent magnets 16 are arranged next to one another.
- the permanent magnets 16 of the armature 3 are located in a magnetic field, which is produced by the electric drive magnets 12 when the coils 11 are provided with current.
- the armature 3 is moved axially between the yokes 9 .
- the armature 3 then oscillates along its longitudinal centre axis 13 . It moves, in this case, alternately in the direction of the mutually opposing U-legs 7 .
- the diaphragms 2 are fastened to the mutually opposing longitudinal ends of the armature 3 .
- the centres of the diaphragms 2 are in this case fixed to the armature 3 .
- compression discs may be provided on the armature 3 and rest on the inside of the diaphragms 2 .
- fixing discs rest on the diaphragms 2 and are screwed to the associated compression discs.
- each U-leg 7 Configured in each U-leg 7 is an opening 17 which completely passes through the U-leg 7 .
- the openings 17 are circular and oppose one another. Their centre point is located on the longitudinal centre axis 13 of the armature 3 when the pump is assembled.
- a pump head 18 which is a component of the pump housing 1 , is associated with each opening 17 .
- Each pump head 18 comprises a chamber part 19 , which is configured in a shell-like manner and is held by screws on the outside on the respective U-leg 7 .
- the pump heads 18 when the pump is assembled, oppose one another.
- the chamber part 19 in turn has a diaphragm clamping region 20 , which runs round the respective opening 17 and rests closely on the outside of the respective U-leg 7 .
- each chamber part 19 has a valve receiving region 21 , which is arranged spaced apart from the respective U-leg 7 with the formation of the respective pumping chamber 4 .
- Each chamber part 19 furthermore has a peripheral wall 22 , which connects the diaphragm clamping region 20 and the valve receiving region 21 to one another.
- the chamber part 19 tapers from the diaphragm clamping region 20 in the direction of the valve receiving region 21 .
- a pressure valve receiver 23 and a suction valve receiver 24 are formed in each valve receiving region 21 .
- the pressure valve receiver 23 is arranged adjacent to a pressure opening 23
- the suction valve receiver 24 is placed adjacent to a suction opening 26 .
- the pressure opening 25 and the suction opening 26 are in each case arranged in the valve receiving region 21 and pass through it completely.
- each pump head 18 comprises a valve cover 27 , which is placed tightly onto the outside of the respective chamber part 19 and adjoins the valve receiving region 21 .
- the valve cover 27 is screwed to the respective chamber part 19 .
- the valve cover 27 holds a suction valve plate 28 in the suction valve receiver 24 .
- the suction valve plate 28 can close the suction opening 26 .
- the valve cover 27 holds a pressure valve plate 29 in the pressure valve receiver 23 .
- the pressure valve plate 29 can close the pressure opening 25 .
- the valve plates 28 , 29 can be moved between a closing position, in which the opening 26 or 25 is released. They are pressure-controlled.
- Each valve cover 27 moreover has a pressure line 30 and a suction line 31 .
- the pressure lines 30 have a flow connection with the pressure openings 25
- the suction lines 31 have a flow connection to the suction openings 26 .
- the pump furthermore comprises two actuating devices 32 .
- Each actuating device 32 is non-rotatably connected to a fixing device 33 .
- the actuating devices 32 and the associated fixing devices 33 are in each case preferably configured in one piece. They form actuating/fixing units.
- the actuating/fixing units are cylinder-like in design. They each have a centre axis 34 . The actuating/fixing units oppose one another when the pump is assembled.
- Each actuating device 32 comprises an annular contact web 35 and an actuating handle 36 projecting radially from the contact web 35 .
- the contact webs 35 in each case have an outer face 37 and an inner face 38 opposing the outer face 37 .
- the external diameter of the contact webs 35 is larger than the diameter of the openings 17 .
- the inner faces 38 rest adjacent to the openings 17 on the U-legs 7 on the outside.
- the inner faces 38 of the actuating devices 32 face one another here.
- the diaphragms 2 rest on the outer faces 37 of the actuating devices 32 . They are held there by the chamber parts 19 , which are screwed to the pump housing 1 or to the respective U-leg 7 .
- the contact webs 35 may rest on the U-legs 7 on the inside.
- Each fixing device 33 comprises a base body 39 , which adjoins the inner face 38 of the respective contact web 35 .
- the base bodies 39 in each case have an external diameter, which is slightly smaller than the diameter of the openings 17 .
- the base bodies 39 project through the openings 17 into the receiving space 8 and rest on the limit wall 40 which limits the respective opening 17 and then forms a bearing face.
- Each base body 39 is point-symmetrical with respect to its centre of symmetry and has an elongate, rectangular, window-like opening 41 , which completely axially passes through the latter and goes through the centre axis 34 .
- Each opening 41 has a first longitudinal end 42 and a second longitudinal end 43 , which opposes the first longitudinal end 42 .
- the longitudinal ends 42 , 43 substantially run adjacent to the contact web 35 .
- the openings 41 furthermore in each case have two mutually opposing longitudinal sides 44 , 45 .
- the openings 41 divide the base body 39 substantially into two halves.
- the spacing of the longitudinal sides 44 , 45 with respect to one another is slightly larger than the width of the armature 3 .
- the spacing of the longitudinal ends 42 , 43 with respect to one another is slightly larger than the height of the armature 3 .
- Each base body 39 has an inside 46 , which, when the pump is assembled, projects into the receiving space 8 and is remote from the associated contact web 35 .
- Each base body 39 on the inside 46 , has a contact face 47 , which runs parallel to the contact web 35 and forms a fixing part for the axial fixing of the armature 3 .
- centring flanks 48 which adjoin the longitudinal side 44 or 45 of the respective opening 41 , are also provided on each base body 39 on the inside 46 thereof
- the centring flanks 48 issue from the contact face 47 of the respective base body 39 . They run obliquely to the contact base 47 .
- a centring flank 48 is located adjacent to the first longitudinal end 42 and the second longitudinal side 45 .
- the other centring flank 48 is arranged adjacent to the second longitudinal end 43 and the first longitudinal side 44 .
- the centring flanks 48 run from the contact face 47 in the direction of the centre axis 34 . They oppose one another obliquely.
- two opening bulges 49 adjoin each opening 41 and are provided in the region of the centre axis 34 in the base body 39 .
- a spring arm which is connected to the respective base body 39 , springs into each opening bulge 49 .
- the spring arms 50 are arcuate. They extend in a curved manner around the centre axis 34 . They can be radially deflected.
- the opening bulges 49 are, in each case, laterally limited by inner contact flanks 87 , which are provided on the base body 39 and extend adjacent to the free ends of the spring arms 50 .
- the contact flanks 87 extend parallel to one another.
- Each contact flank 87 borders on a longitudinal side 44 or 45 of the respective opening 41 and extends in the base body over a thick region thereof The contact flanks 87 extend perpendicular to the contact faces 47 .
- the function of the pump will be described below.
- the armature 3 which comprises the permanent magnets 16 , is located in the magnetic field.
- the permanent magnets 16 also produce a magnetic field.
- the permanent magnets 16 and the electric drive magnets 12 together form a pump body drive device or a diaphragm drive device.
- the armature 3 is provided with an oscillating movement by the magnetic fields along its longitudinal centre axis 13 . In the process, it is displaced along a displacement path.
- the armature 3 moves in two different directions, which, are opposed or in opposite directions to one another.
- two diaphragms 2 are actuated alternately.
- the centres of the diaphragms 2 are alternately pressed into the chamber parts 19 and then drawn into the receiving space 8 , so a fluid to be conveyed is conveyed.
- the fluid to be conveyed is sucked via at least one panel cover into the pump housing 1 by the diaphragms 2 .
- the fluid flows via at least one part region along the yokes 9 . It is then drawn into the suction lines 31 .
- the fluid arrives in the respective pumping chamber 4 .
- the fluid passes the respective suction valve plate 28 , which is then located in its release position.
- the pressure openings 25 are, in this case, closed by the pressure valve plates 29 .
- the fluid then leaves the pumping chambers 4 via the pressure openings 25 , which form fluid outlets.
- the suction valve plates 28 prevent an unintentional return of the fluid into the suction lines 31 .
- the fluid passes the respective pressure valve plate 29 , which is then in its release position. It then arrives in the pressure lines 30 .
- the fluid can then be removed via a collecting pressure connecting piece (not shown).
- the pump can be completely housed in an outer housing.
- the armature 3 In this operating state of the pump, the armature 3 is moveable along its displacement path.
- the actuating devices 32 or the fixing devices 33 are in each case in their release position or non-fixing position.
- the openings 41 are oriented in such a way that the armature 3 can pass through them.
- the openings 41 and the armature 3 have a common centre plane.
- the actuating devices 32 are to be manually pivoted from their release position about the centre axis 34 into their fixing position.
- the actuating devices 32 can be pivoted simultaneously or consecutively.
- the actuating handles 36 which allow a simple and reliable force transmission, are to be used for the manual pivoting of the actuating devices 32 .
- the pivoting of the actuating devices 32 leads to a corresponding pivoting of the fixing devices 33 about the centre axis 34 from their release position into their fixing position.
- a centring of the armature 3 firstly takes place. This centring is shown in FIGS. 8 and 9 . It takes place automatically during the displacement of the fixing devices 33 from their release position into their fixing position. The fixing devices 33 thus also ensure a centring.
- the two centring flanks 48 of a fixing device 33 come to rest synchronously on the armature 3 .
- the armature 3 preferably has corresponding engagement faces 51 for the centring flanks 48 .
- the engagement faces 51 are located in the region of the longitudinal ends of the armature 3 and are substantially perpendicular to the longitudinal centre axis 13 . A relative movement takes place between the engagement faces 51 and the associated centring flanks 48 .
- the armature 3 is displaced from the actuating device 32 which has just been actuated along the longitudinal centre axis 13 in the direction of the other actuating device 32 .
- a centring of the armature 3 takes place in the direction of the longitudinal centre axis 13 .
- Each fixing device 33 presses the armature 3 away from it, which leads to a centring of the armature 3 .
- the armature 3 after centring, is located centrally between the U-legs.
- the centring flanks 48 during a centring of the armature 3 , also act in a direction which is perpendicular to the longitudinal centre axis 13 .
- the armature 3 is thus also radially centred with respect to the longitudinal centre axis 13 .
- the further the actuating devices 32 or the fixing devices 33 are pivoted into the fixing positions, the further the armature 3 is displaced with respect to its position.
- the diaphragms 2 fastened to the armature 3 prevent a pivoting of the armature 3 about the longitudinal centre axis 13 on actuation of the fixing devices 33 .
- the centring flanks 48 furthermore prevent the armature 3 from carrying out a pivoting movement about the longitudinal centre axis 13 upon actuation of the fixing devices 33 .
- the fixing devices 33 then reach their fixing positions. These are shown in FIGS. 10 and 11 .
- the contact faces 47 then rest flat on the longitudinal ends of the armature 3 and thus secure these axially.
- the openings 41 and the armature 3 are no longer oriented one after the other or with respect to one another.
- the armature 3 can no longer pass through the openings 41 .
- the spring arms 50 prevent the fixing devices 33 being able to be moved unintentionally from their fixing position. They furthermore also fix the armature 3 .
- the spring arms 50 in this case, rest on the armature 3 .
- the diaphragms 2 can then be removed from the armature 3 .
- the pump heads 18 are to be removed for this purpose.
- the contact flanks 87 of a base body 39 then rest laterally on the armature 3 on the opposing sides of the armature 3 .
- the contact flanks 87 of the two base bodies 39 are, in this case, spaced apart in the axial direction along the longitudinal centre axis 13 .
- the contact flanks 87 prevent both a rotation of the armature 3 about the longitudinal centre axis 13 and also prevent the latter approaching the coils 11 .
- the contact flanks 87 therefore form fixing parts, which fix the armature 3 transverse to its displacement path.
- the second embodiment of the invention will be described below.
- Identical components receive the same reference numerals as in the first embodiment, to which reference is hereby made.
- Structurally different, but functionally similar components receive the same reference numerals with an “a” thereafter.
- the essential difference between the first embodiment and the second embodiment is the configuration of the actuating devices 32 a and the fixing devices 33 a.
- the actuating devices 32 a and the fixing devices 33 a are configured separately here.
- the pump has two actuating devices 32 a.
- Each actuating device 32 a has an actuating disc 52 , which is circular and is housed in the receiving space 8 .
- the actuating handle 36 projects radially from the actuating disc 52 .
- the openings 41 axially pass through the actuating discs 52 , which are point-symmetrical.
- Each actuating disc 52 has an outer face 37 and an inner face 38 .
- Two centring webs 53 each with a centring flank 48 a project from each inner face 38 .
- the centring webs 53 extend curved in an arcuate manner They each have uniform curvature and extend at a constant spacing from the centre axis 34 .
- Each centring web 53 borders on a longitudinal side 44 or 45 of an opening 41 .
- the centring webs 53 of an actuating device 32 a are, in this case, arranged obliquely opposing one another adjacent to the longitudinal ends 42 , 43 .
- the centring flanks 48 a extend obliquely to the inner face 38 and to the centre axis 34 .
- each actuating disc 52 Furthermore provided in each actuating disc 52 are two links 54 , which issue from the inner face 38 thereof.
- the links 54 may be groove-like. They can, however, also completely pass through the actuating discs 52 .
- the links 54 of an actuating device 32 a are arranged adjacent to the longitudinal sides 44 or 45 . They oppose one another obliquely.
- Each link 54 has a radially outer idling portion 55 , a link pin actuating portion 56 adjoining the idling portion 55 and a radially inner fixing portion 57 adjoining the link pin actuating portion 56 .
- the fixing portions 57 are in each case arranged adjacent to the openings 41 . They run substantially straight. Their spacing from the centre axis 34 is substantially constant. Proceeding from the fixing portions 57 , the spacing in the link pin actuating portions 56 from the centre axis 34 increases greatly.
- the idling portions 55 again have a substantially constant spacing from the centre axis 34 .
- the pump furthermore has two fixing devices 33 a.
- Each fixing device 33 a in turn comprises two wedge mechanisms 58 .
- Each wedge mechanism 58 has an outer coupling wedge 59 and an inner gripping wedge 60 .
- a gripping wedge 60 is in each case associated with a coupling wedge 59 . These virtually form a wedge pair.
- Each wedge mechanism 58 has a carrier 61 .
- the carriers 61 in each case comprise a fixing piece 68 , which, when the pump is assembled, has a screw 63 passing through it and is located adjacent to the U-base 6 .
- the screws 63 are screwed into the yokes 9 , so the carriers 61 are also fixed to the yokes 9 thereby. Different securing is alternatively possible.
- each carrier 61 has a holder 64 , which is preferably configured in a rod-like manner and is connected to a fixing piece 62 .
- the holders 64 of a fixing device 33 a run parallel to one another. They extend parallel to the U-legs 7 and run away from the fixing pieces 62 perpendicular to the U-base 6 .
- a coupling wedge 59 is fastened to each holder 64 .
- Each coupling wedge 59 has an obliquely running, free wedge face 65 , which is remote from the associated holder 64 .
- the wedge faces 65 of a fixing device 33 a face one another.
- a link pin 71 is provided on each coupling wedge 59 and engages in the link 54 of the adjacent actuating device 32 a.
- the two holders 64 of a fixing device 33 a are connected to one another by two guide rods 66 .
- the guide rods 66 extend parallel to one another and substantially perpendicular to the holders 64 . They run parallel to the U-base 6 and to the U-legs 7 . They are fastened to the holders 64 in the region of the mutually opposing longitudinal ends of the holders 64 .
- the guide rods 66 extend at a spacing from the longitudinal sides of the armature 3 .
- the gripping wedges 60 are displaceably guided along the guide rods 66 . They have corresponding guide recesses 67 for this.
- Each gripping wedge 60 has an obliquely running wedge face 68 , which rests on the wedge face 65 of an associated coupling wedge 59 .
- each gripping wedge 60 has a free, straight gripping face 47 a, which is arranged opposing the wedge face 68 .
- the wedge faces 47 a form fixing parts to fix the armature 3 .
- the gripping faces 47 a of a fixing device 33 a face one another.
- At least one spring element 70 is provided between the two gripping wedges 60 of a fixing device 33 a.
- a pressure helical spring, which forms the spring element 70 is arranged here on each guide rod 66 .
- helical pressure springs 70 leaf springs are preferably provided.
- the helical pressure springs 70 are supported on the gripping faces 47 a of the gripping wedges 60 of a fixing device 33 a.
- the spring elements 70 when using, for example, guiding T-grooves on the sliding wedge faces 65 of the coupling wedges 59 , can also be completely dispensed with.
- the mode of functioning of the actuating devices 32 a or the fixing devices 33 a will be described below.
- the release position of the actuating devices 32 a or the fixing devices 33 a is assumed, which is shown in FIGS. 14 and 16 .
- the gripping faces 47 a of the wedge mechanisms 58 are spaced apart from one another there.
- the spacing of the gripping faces 47 a from one another is larger than the width of the armature 3 .
- the armature 3 can move along the longitudinal centre axis 13 .
- the armature 3 may pass through the openings 41 .
- At least one actuating device 32 a or fixing device 33 a has to be actuated to fix the armature 3 .
- the actuating handle 36 is preferably to be used for this.
- the centring flanks 48 a synchronously come to rest on the adjacent longitudinal end of the armature 3 , so the armature 3 is displaced along its longitudinal centre axis 13 .
- the armature 3 is pressed in the direction of the other actuating device 32 a.
- the idling portion 55 in this case, moves past the respective link pin 71 . No forces are transmitted between the respective link pin 71 and the links 54 .
- the idling portions 55 thus have no actuating function.
- the fixing device 33 a is not yet actuated.
- the final fixed position is shown in FIG. 19 .
- the gripping faces 47 a of a fixing device 33 a rest laterally in a planar manner on the armature 3 and oppose one another. They thus secure the armature 3 locally. It is also centred in the process. A clamping fixing is present here.
- the link pins 71 are in the fixing portions 57 . They are fixed there.
- the fixing devices 33 a ensure a fixing of the armature 3 at two points which are spaced apart from one another along the longitudinal centre axis 13 . A front and a rear fixing virtually takes place.
- a third embodiment of the invention will be described below with reference to FIGS. 20 to 25 .
- Identical components receive the same reference numerals as in the previous embodiments, to which reference is hereby made.
- Structurally different but functionally similar components receive the same reference numerals with a “b” thereafter.
- the actuating devices 32 b and the fixing devices 33 b are configured differently.
- the actuating devices 32 b are similar to the actuating devices 32 a according to the second embodiment.
- the pump has precisely one actuating device 32 b. Alternatively, however, two actuating devices 32 b may also be provided again.
- the actuating device 32 b again has a circular actuating disc 52 b, which is again point-symmetrical with respect to its centre axis 34 .
- An actuating handle 36 projects radially from the actuating disc 52 b.
- the actuating disc 52 b has an opening 41 passing through it on the end face.
- two links 54 b are provided in the actuating disc 52 b, which issue from the inner face 38 thereof
- the links 54 b may be groove-like. However, they may also completely pass through the actuating disc 52 b.
- the links 54 b extend in a curved manner around the centre axis 34 .
- Each link 54 b has a link pin actuating portion 56 b and a radially inner fixing portion 57 b.
- the link pin actuating portions 56 b start in the region of the longitudinal ends 42 or 43 of the opening 41 . They extend according to FIG. 23 from the opening 41 clockwise and in the process approach the centre axis 34 .
- the link pin actuating portions 56 b in the region adjacent to the longitudinal ends 42 , 43 , have a first radius of curvature, which is larger than a second radius of curvature, which is present at the inner end of the link pin actuating portions 56 b.
- Adjoining the inner end of the link pin actuating portions 56 b are the fixing portions 57 b, which run straight and have substantially a constant spacing from the centre axis 34 .
- the pump has two fixing devices 33 b.
- Each fixing device 33 b has a carrier 61 b, which is fastened by a fixing piece 62 b to the adjacent yoke 9 .
- At least one guide rod 66 b is fastened to each fixing piece 62 b.
- Two guide rods 66 b are provided here per fixing piece 62 b and run parallel to one another.
- the guide rods 66 b extend parallel to the U-legs 7 and substantially perpendicular to the U-base 6 .
- Two clamp-like, elongate fixing parts 47 b are displaceably guided on the guide rods 66 b.
- the fixing parts 47 b are configured identically.
- Each fixing part 47 b has two guide recesses 67 b, which have the guide rods 66 b passing through them.
- the fixing parts 47 b in each case have an elongate groove-like or channel-like encompassing receiver 75 .
- the encompassing receivers 75 have introduction openings 72 , which oppose one another.
- Each encompassing receiver 75 has two longitudinal sides and two longitudinal ends 76 .
- a centring flank 48 b which is configured as an oblique face and axially limits the encompassing receiver 75 .
- a centring flank 63 which is configured as an oblique face and laterally limits the encompassing receiver 75 , is provided on each longitudinal side.
- the centring flanks 48 b oppose one another.
- the length of the encompassing receivers 75 reduces from the outside to the inside in the region of the centring flanks 48 b.
- the centring flanks 73 oppose one another.
- the width of the encompassing receivers 75 reduces from the outside to the inside in the region of the centring flanks 73 .
- an axially projecting link pin 71 is provided on each longitudinal end 76 of a fixing part 47 b. When the pump is assembled, the link pins 71 engage in the links 54 b.
- the mode of functioning of the pump will be described in more detail below.
- the operating position shown in FIG. 22 is assumed.
- the fixing parts 47 b are located there spaced apart from the armature 3 , so the latter is released and can move along its longitudinal centre axis 13 .
- the actuating device 32 b has to be pivoted by its actuating handle 36 about the centre axis 34 .
- the links 54 b are also moved accordingly.
- a relative movement takes place between the links 54 b and the link pins 71 .
- the link pins 71 move along the link pin actuating portions 56 b in the direction of the fixing portions 57 b.
- the fixing parts 47 b are actuated and moved toward one another along the guide rods 66 b, which is brought about by the link coupling.
- the fixing position which is shown in FIG. 25 , the fixing parts 47 b and the armature 3 are engaged.
- the two longitudinal sides of the armature 3 are located in the encompassing receivers 75 .
- the link pins 71 are locally secured in the fixing portions 57 b.
- the fixing devices 33 b ensure fixing of the armature 3 at two points, which are spaced apart from one another along the longitudinal centre axis 13 . A front and a rear fixing virtually takes place.
- the centring flanks 48 b bring about a centring of the armature 3 along the longitudinal centre axis 13 . Furthermore, the centring flanks 73 bring about a centring of the armature 3 transversely to its longitudinal centre axis 13 .
- FIGS. 26 to 32 A fourth embodiment of the invention will be described below with reference to FIGS. 26 to 32 .
- Identical components received the same reference numerals as the previous embodiments, to which reference is hereby made.
- Structurally different, but functionally similar components receive the same reference numerals with a “c” thereafter.
- the actuating devices 32 c and the fixing devices 33 c are configured differently.
- the pump comprises two actuating devices 32 c and two fixing devices 33 c .
- Two fixing pieces 62 c are provided here, which are fastened, when the pump is assembled, adjacent to the U-base 6 on the yokes 9 .
- Two mutually parallel holders 64 c are rigidly connected to each fixing piece 62 c and run away from the U-base 6 and in each case have a bearing opening 79 at their free end.
- the holders 64 c extend perpendicularly to the U-base 6 .
- the bearing openings 79 of a fixing device 33 c have a common bearing axis, which runs parallel to the U-base 6 .
- a fixing part 47 c is displaceably guided parallel to the U-base 6 in each bearing opening 79 .
- the fixing parts 47 c are in each case configured in a pin-like or bolt-like manner, with them preferably being circular in cross section. They in each case have an outer actuating end 80 and an inner fixing end 81 opposing the actuating end 80 .
- the fixing parts 47 c taper conically in the region of their fixing ends 81 with the formation of centring parts 48 c.
- the fixing parts 47 c in each case have a radially projecting head.
- a helical spring 82 is arranged on each fixing part 47 c. The latter in each case rests on the head of the fixing part 47 c and on the respective holder 64 c and presses the fixing part 47 c outwardly or away from the respective holder 64 c.
- the actuating devices 32 c are in each case annular. They in each case have a radially projecting actuating handle 36 .
- Two control cams 54 c which are identically configured and run at the edge on the respective actuating device 32 c around the centre axis 34 , are provided in each actuating device 32 c.
- the control cams 54 c are open toward the centre axis 34 .
- Each control cam 54 c has a control cam beginning 84 and a control cam end 85 .
- the radial spacing of the base face limiting the control cams 54 c from the centre axis 34 in each decrease from the control cam beginning 84 with the formation of a link pin actuating portion 56 c in the direction of the control cam end 85 . The decrease can take place regularly or irregularly.
- Fixing recesses 86 are configured in the armature 3 .
- the fixing recesses 86 are conically configured and are open toward the adjacent fixing parts 47 c.
- the fixing recesses 86 taper from the outside to the inside.
- the heads of the fixing parts 47 c rest on the inside of the control cams 54 c.
- the heads are pressed by the helical springs 82 onto the control cams 54 c.
- the fixing ends 81 of the fixing parts 47 c of a fixing device 33 c face one another.
- the fixing parts 47 c form link pins 71 c.
- FIG. 30 The mode of functioning of the pump will be described in more detail below.
- the starting point is FIG. 30 in this case.
- the armature 3 is released.
- the fixing ends 81 are spaced apart from the fixing recesses 86 .
- the actuating ends 80 slide on the control cams 54 c.
- the fixing parts 47 c are pressed toward one another or in the direction of the armature 3 by the control cams 54 c in the link pin actuating portions 56 c.
- the armature 3 is locally fixed.
- the fixing parts 47 c and the fixing recesses 86 have a positive connection.
- the fixing devices 33 c ensure a fixing of the armature 3 at two points, which are spaced apart from one another along the longitudinal centre axis 13 . A front and a rear fixing virtually takes place.
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- Engineering & Computer Science (AREA)
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- Reciprocating Pumps (AREA)
Abstract
Description
- The invention relates to a pump, in particular a diaphragm pump, for conveying a fluid. The fluid to be conveyed is taken to mean a medium to be conveyed, such as a liquid, a gas, a gas mixture or a liquid/gas mixture. The pump is preferably used in continuous operation in small sewage plants. Small sewage plants of this type are often used to purify waste water in buildings which do not have their own sewage system connection. The pump is preferably used to introduce air into the waste water. The waste water is thus enriched with oxygen. Bacteria are thus activated for the biological or bacterial purification of the waste water. The pump is therefore preferably an aeration pump.
- A large number of pumps are known from the prior art and are used in small sewage plants, for example. The disadvantage in these known pumps is that their wearing parts—such as their diaphragm—often have to be exchanged after a few years. The exchange of the wearing parts is relatively time-consuming Technical skill is generally necessary to exchange the wearing parts.
- The invention is therefore based on the object of providing a pump, the wearing parts of which can be exchanged particularly easily and quickly.
- This object is achieved according to the invention by the features disclosed in
claim 1. The core of the invention is that the at least one pump body drive mechanism can be locally fixed by the at least one fixing device. In particular, this prevents the fixed pump body drive mechanism being able to unintentionally move or be moved during maintenance work. A simple exchange of a pump body is thus possible, for example, - For example, during maintenance work, it can thus also be prevented that a pump body drive mechanism comprising at least one drive magnet is attracted by at least one stationary drive magnet and is fixed thereto. The release of the magnets is generally very difficult. A pump body drive mechanism of this type preferably has at least a first drive magnet. It is advantageous if the at least one pump body drive device furthermore has at least one second drive magnet arranged adjacent to the at least one pump body drive mechanism to move the at least one pump body drive mechanism along the displacement path. Another configuration of the pump body drive device is alternatively possible.
- The at least one pump body may, for example, be configured as a diaphragm. However, it may also be a piston. Two pump bodies are preferably provided. It is also advantageous if two fixing devices are provided. These can preferably be actuated independently of one another. The fixing devices may, however, also be coupled to one another for common actuation.
- Further advantageous configurations are disclosed in the sub-claims.
- The configuration according to
claim 2 allow simple actuation or handling of the fixing device. An actuating device is preferably provided for each fixing device. However, two fixing devices may also be actuated by one actuating device. The actuating device may be displaceably or pivotably mounted on the pump housing. It preferably comprises at least one actuating means. Examples of possible actuating means are an actuating handle or a handle trough. The actuating means may, however, have been produced by knurling. The actuating device may be mounted on the inside or outside of the pump housing. With inside mounting of the actuating device, the actuating means is preferably configured as an actuating handle or lever, which can then project from the pump housing through a recess formed in the pump housing. - The configuration according to
claim 3 leads to an extremely functionally reliable fixing of the pump body drive mechanism. The fixing part may engage, preferably positively, in the pump body drive mechanism. The pump body drive mechanism then preferably has at least one corresponding recess or opening for this. The fixing part may, however, also rest on the outside of the pump body drive mechanism. It may rest thereon laterally or on the end face. The fixing part may, however, also partially encompass the pump body drive mechanism in a clamp-like manner Each fixing device preferably has one or two fixing parts. - The configuration according to
claim 4, in a functionally reliable manner, prevents a further displacement of the pump body drive mechanism along its displacement path. The pump body drive mechanism may also be fixed, however, alternatively or additionally, transverse to its displacement path. The at least one fixing part is preferably configured in such a way that, in its fixing position, it fixes the pump body drive mechanism in the direction of its displacement path and preferably also transverse to its displacement path. The fixings acting in different directions can be achieved by common fixing parts or by fixing parts which are separate from one another. - The configuration according to
claim 5 allows an extremely precise placing of the pump body drive mechanism. It can thus be guided precisely to its desired fixing position. - The configurations according to
claims - The configuration according to claim 8 results in an extremely high functional reliability. Moreover, a pump of this type is extremely easy to handle during maintenance.
- The configuration according to
claim 9 produces an extremely functionally reliable fixing device. The coupling wedge and the fixing part configured in the manner of a wedge have a sliding connection with one another by means of their wedge faces. An actuation of the coupling wedge leads to a movement of the fixing part, whereby a movement deflection takes place. Two wedge mechanisms per fixing device are preferably provided. Each fixing device preferably also has two fixing parts, it being possible for a spring element to be provided between these fixing parts for the movement thereof into their release position. The spring element may be configured as a leaf spring, helical spring, elastomer spring or as a spring block. Instead of spring elements, corresponding guides may also be provided, which bring about a return of the fixing parts. A swallowtail guide may, for example, be used for this. The fixing parts, in the fixing position, preferably rest laterally on the pump body drive mechanism. - The configuration according to
claim 10 also leads to an extremely reliable fixing of the pump body drive mechanism. The encompassing body, in the fixing position, preferably encompasses the pump body drive mechanism in the region of its longitudinal sides. A positive connection is preferably present between the encompassing body and the pump body drive mechanism. - The configuration according to
claim 11 leads to an easy and functionally reliable actuation of the fixing part. The link is preferably configured in or on the actuating device, while the link pin is connected to the fixing part. According to an alternative embodiment, the link is configured on the fixing part, while the link pin is provided on the actuating device. - The configuration according to
claim 12 is particularly operationally reliable. - The configuration according to
claim 13 has an extremely simple structure. The link is then preferably configured as a link cam or control cam. A spring element, which brings the fixing part into contact with the link cam, is preferably associated with each fixing part. - The configuration according to
claim 14 is again extremely simple with regard to structure. It is also extremely assembly-friendly and functionally reliable. - The configuration according to claim 15 leads to an extremely high operating reliability.
- Four embodiments of the invention will be described below by way of example with reference to the accompanying drawings, in which:
-
FIG. 1 shows a perspective view of a pump according to the invention in accordance with a first embodiment, -
FIG. 2 shows a section through the pump shown inFIG. 1 , -
FIG. 3 shows an exploded view of the pump shown inFIGS. 1 and 2 , -
FIG. 4 shows a view which shows the actuating device or fixing device of the pump shown inFIGS. 1 to 3 , -
FIG. 5 shows a section along the section line V-V shown inFIG. 4 , -
FIGS. 6 and 7 show sections through the pump shown inFIGS. 1 to 3 , the pump body drive mechanism being released. -
FIG. 8 shows a view of the pump shown inFIGS. 1 to 3 , the fixing device being located in its centring position, -
FIG. 9 shows a section along the section line IX-IX inFIG. 8 , -
FIGS. 10 and 11 show sections through the pump shown inFIGS. 1 to 3 , the fixing device being located in its fixing position, -
FIG. 12 shows a perspective view of a pump according to the invention, in accordance with a second embodiment, -
FIG. 13 shows an exploded view of the pump shown inFIG. 12 , -
FIG. 14 shows a perspective view of the fixing devices, the actuating devices and the pump body drive mechanism of the pump shown inFIGS. 12 and 13 , -
FIG. 15 shows a perspective view of the actuating device of the pump shown inFIGS. 12 and 13 , -
FIG. 16 shows a view of the pump shown inFIGS. 12 and 13 , the fixing device being in its release position, -
FIGS. 17 and 18 show sections through the pump shown inFIGS. 12 and 13 , the fixing device being in a centring position, -
FIG. 19 shows a section through the pump shown inFIGS. 12 and 13 , the fixing device being in its fixing position, -
FIG. 20 shows a perspective view of a pump according to the invention in accordance with a third embodiment, -
FIG. 21 shows a section through the pump shown inFIG. 20 , -
FIG. 22 shows a further section through the pump shown inFIG. 20 , the pump body drive mechanism being released, -
FIG. 23 shows a perspective view of the actuating device of the pump shown inFIGS. 20 to 22 , -
FIG. 24 shows a perspective view of the fixing devices and the actuating device of the pump shown inFIGS. 20 to 22 , -
FIG. 25 shows a section corresponding toFIG. 22 , the fixing devices being in their fixing position, -
FIG. 26 shows a perspective view of a pump according to the invention in accordance with a fourth embodiment, -
FIGS. 27 and 28 show sections through the pump shown inFIG. 26 , the pump body drive mechanism being released, -
FIG. 29 shows a perspective view of the fixing devices shown inFIGS. 26 to 28 , the actuating devices and the pump body drive mechanism, -
FIG. 30 shows a section through the fixing devices, the actuating devices and the pump body drive mechanism of the pump shown inFIG. 26 , the pump body drive mechanism being released, -
FIG. 31 shows a section corresponding toFIG. 30 , the fixing devices being in their centring position, and -
FIG. 32 shows a section corresponding toFIGS. 30 and 31 , the fixing devices being in their fixing position. - A first embodiment of the invention will be described below with reference to
FIGS. 1 to 11 . A pump according to the first embodiment comprises apump housing 1,diaphragms 2 and adiaphragm drive mechanism 3 for actuating thediaphragms 2. Thediaphragms 2 and thediaphragm drive mechanism 3 are housed in thepump housing 1. Thediaphragms 2 and thepump housing 1 together limit pumpingchambers 4, which can be changed with regard to their volume. Thediaphragms 2 are flexible and impermeable to fluid. By actuating thediaphragms 2 by thediaphragm drive mechanism 3, a fluid is conveyed by changing the volume of thepumping chambers 4. Thediaphragms 2 form pump bodies, while thediaphragm drive mechanism 3 is a pump body drive mechanism. - The
pump housing 1 comprises apanel 5, which is U-shaped in design. Thepanel 5 therefore has a U-base 6 and twoU-legs 7 projecting perpendicularly from the U-base 6. The open sides of thepanel 5 are in each case closed when the pump is assembled. Opposing the U-base 6, a first panel cover (not shown) is provided for this. Furthermore, two second panel covers (not shown) are provided, which then oppose one another and rest laterally on the U-base 6 and theU-legs 7. The panel covers are preferably screwed to thepanel 5 by screws. They together form a U-shape, the first panel cover forming the U-base. The U-base 6, the U-legs 7 and the panel covers are plate-shaped in each case. They together limit acuboid receiving space 8 and together form thepump housing 1. - Provided in the receiving
space 8 are twoyokes 9, which are arranged spaced apart from one another and are preferably formed from an iron material. Theyokes 9 are fastened to thepanel 5. They are preferably fixed to the U-base 6. Eachyoke 9 is E-shaped and therefore has a central, finger-like projection 10. Wound around eachprojection 10 is acoil 11, by which electrical current can be carried. Theprojections 10 in each case form a core for thecoils 11 and run toward one another. Theyokes 9 and thecoils 11 formelectric drive magnets 12. - Arranged between the
yokes 9 and the associated coils 11 is thediaphragm drive mechanism 3, which is configured as an armature, shuttle or the like. Thearmature 3 is moveable and plate-like. It has a rectangular, elongate shape and therefore alongitudinal centre axis 13. Thearmature 3 can be axially displaced along itslongitudinal centre axis 13. It comprises aframe 14 with two window-like openings 15, which are arranged next to one another in the direction of thelongitudinal centre axis 13. Apermanent magnet 16 is inserted in eachopening 15. Opposite poles of thepermanent magnets 16 are arranged next to one another. - The
permanent magnets 16 of thearmature 3 are located in a magnetic field, which is produced by theelectric drive magnets 12 when thecoils 11 are provided with current. By providing thecoils 11 with current, thearmature 3 is moved axially between theyokes 9. Thearmature 3 then oscillates along itslongitudinal centre axis 13. It moves, in this case, alternately in the direction of the mutually opposing U-legs 7. - The
diaphragms 2 are fastened to the mutually opposing longitudinal ends of thearmature 3. The centres of thediaphragms 2 are in this case fixed to thearmature 3. For this purpose, compression discs may be provided on thearmature 3 and rest on the inside of thediaphragms 2. On the outside, fixing discs rest on thediaphragms 2 and are screwed to the associated compression discs. - Configured in each U-leg 7 is an
opening 17 which completely passes through theU-leg 7. Theopenings 17 are circular and oppose one another. Their centre point is located on thelongitudinal centre axis 13 of thearmature 3 when the pump is assembled. - A
pump head 18, which is a component of thepump housing 1, is associated with eachopening 17. Eachpump head 18 comprises achamber part 19, which is configured in a shell-like manner and is held by screws on the outside on therespective U-leg 7. The pump heads 18, when the pump is assembled, oppose one another. Thechamber part 19 in turn has adiaphragm clamping region 20, which runs round therespective opening 17 and rests closely on the outside of therespective U-leg 7. Furthermore, eachchamber part 19 has avalve receiving region 21, which is arranged spaced apart from the respective U-leg 7 with the formation of therespective pumping chamber 4. Eachchamber part 19 furthermore has aperipheral wall 22, which connects thediaphragm clamping region 20 and thevalve receiving region 21 to one another. Thechamber part 19 tapers from thediaphragm clamping region 20 in the direction of thevalve receiving region 21. - A
pressure valve receiver 23 and asuction valve receiver 24 are formed in eachvalve receiving region 21. Thepressure valve receiver 23 is arranged adjacent to a pressure opening 23, while thesuction valve receiver 24 is placed adjacent to asuction opening 26. Thepressure opening 25 and thesuction opening 26 are in each case arranged in thevalve receiving region 21 and pass through it completely. - Furthermore, each
pump head 18 comprises avalve cover 27, which is placed tightly onto the outside of therespective chamber part 19 and adjoins thevalve receiving region 21. Thevalve cover 27 is screwed to therespective chamber part 19. In this case, thevalve cover 27 holds asuction valve plate 28 in thesuction valve receiver 24. Thesuction valve plate 28 can close thesuction opening 26. Moreover, thevalve cover 27 holds apressure valve plate 29 in thepressure valve receiver 23. Thepressure valve plate 29 can close thepressure opening 25. Thevalve plates opening pressure line 30 and asuction line 31. The pressure lines 30 have a flow connection with thepressure openings 25, while thesuction lines 31 have a flow connection to thesuction openings 26. - The pump furthermore comprises two
actuating devices 32. Eachactuating device 32 is non-rotatably connected to a fixingdevice 33. Theactuating devices 32 and the associated fixingdevices 33 are in each case preferably configured in one piece. They form actuating/fixing units. The actuating/fixing units are cylinder-like in design. They each have acentre axis 34. The actuating/fixing units oppose one another when the pump is assembled. - Each
actuating device 32 comprises anannular contact web 35 and anactuating handle 36 projecting radially from thecontact web 35. Thecontact webs 35 in each case have anouter face 37 and aninner face 38 opposing theouter face 37. The external diameter of thecontact webs 35 is larger than the diameter of theopenings 17. When the pump is assembled, the inner faces 38 rest adjacent to theopenings 17 on the U-legs 7 on the outside. The inner faces 38 of theactuating devices 32 face one another here. Thediaphragms 2 rest on the outer faces 37 of theactuating devices 32. They are held there by thechamber parts 19, which are screwed to thepump housing 1 or to therespective U-leg 7. - Alternatively, the
contact webs 35 may rest on the U-legs 7 on the inside. - Each fixing
device 33 comprises abase body 39, which adjoins theinner face 38 of therespective contact web 35. Thebase bodies 39 in each case have an external diameter, which is slightly smaller than the diameter of theopenings 17. When the pump is assembled, thebase bodies 39 project through theopenings 17 into the receivingspace 8 and rest on thelimit wall 40 which limits therespective opening 17 and then forms a bearing face. - Each
base body 39 is point-symmetrical with respect to its centre of symmetry and has an elongate, rectangular, window-like opening 41, which completely axially passes through the latter and goes through thecentre axis 34. Eachopening 41 has a firstlongitudinal end 42 and a secondlongitudinal end 43, which opposes the firstlongitudinal end 42. The longitudinal ends 42, 43 substantially run adjacent to thecontact web 35. Theopenings 41 furthermore in each case have two mutually opposinglongitudinal sides openings 41 divide thebase body 39 substantially into two halves. The spacing of thelongitudinal sides armature 3. The spacing of the longitudinal ends 42, 43 with respect to one another is slightly larger than the height of thearmature 3. - Each
base body 39 has an inside 46, which, when the pump is assembled, projects into the receivingspace 8 and is remote from the associatedcontact web 35. Eachbase body 39, on the inside 46, has acontact face 47, which runs parallel to thecontact web 35 and forms a fixing part for the axial fixing of thearmature 3. - Two centring flanks 48, which adjoin the
longitudinal side respective opening 41, are also provided on eachbase body 39 on the inside 46 thereof The centring flanks 48 issue from thecontact face 47 of therespective base body 39. They run obliquely to thecontact base 47. Acentring flank 48 is located adjacent to the firstlongitudinal end 42 and the secondlongitudinal side 45. Theother centring flank 48, on the other hand, is arranged adjacent to the secondlongitudinal end 43 and the firstlongitudinal side 44. The centring flanks 48 run from thecontact face 47 in the direction of thecentre axis 34. They oppose one another obliquely. - Furthermore, two opening bulges 49 adjoin each
opening 41 and are provided in the region of thecentre axis 34 in thebase body 39. A spring arm, which is connected to therespective base body 39, springs into each openingbulge 49. Thespring arms 50 are arcuate. They extend in a curved manner around thecentre axis 34. They can be radially deflected. - The opening bulges 49 are, in each case, laterally limited by inner contact flanks 87, which are provided on the
base body 39 and extend adjacent to the free ends of thespring arms 50. The contact flanks 87 extend parallel to one another. Eachcontact flank 87 borders on alongitudinal side respective opening 41 and extends in the base body over a thick region thereof The contact flanks 87 extend perpendicular to the contact faces 47. - The function of the pump will be described below. By providing the
coils 11 with current, the latter produce a magnetic field. Thearmature 3, which comprises thepermanent magnets 16, is located in the magnetic field. Thepermanent magnets 16 also produce a magnetic field. Thepermanent magnets 16 and theelectric drive magnets 12 together form a pump body drive device or a diaphragm drive device. Thearmature 3 is provided with an oscillating movement by the magnetic fields along itslongitudinal centre axis 13. In the process, it is displaced along a displacement path. Thearmature 3 moves in two different directions, which, are opposed or in opposite directions to one another. - Owing to the oscillating movement of the
armature 3, twodiaphragms 2 are actuated alternately. The centres of thediaphragms 2 are alternately pressed into thechamber parts 19 and then drawn into the receivingspace 8, so a fluid to be conveyed is conveyed. - The fluid to be conveyed is sucked via at least one panel cover into the
pump housing 1 by thediaphragms 2. In thepump housing 1, the fluid flows via at least one part region along theyokes 9. It is then drawn into the suction lines 31. Via thesuction openings 26, which form fluid inlets, the fluid arrives in therespective pumping chamber 4. The fluid, in the process, passes the respectivesuction valve plate 28, which is then located in its release position. Thepressure openings 25 are, in this case, closed by thepressure valve plates 29. The fluid then leaves thepumping chambers 4 via thepressure openings 25, which form fluid outlets. Thesuction valve plates 28 prevent an unintentional return of the fluid into the suction lines 31. The fluid passes the respectivepressure valve plate 29, which is then in its release position. It then arrives in the pressure lines 30. The fluid can then be removed via a collecting pressure connecting piece (not shown). The pump can be completely housed in an outer housing. - The exchange of a
diaphragm 2 will be described in more detail below. In this case, the operating state of the pump is assumed, which is shown inFIGS. 6 and 7 . Thearmature 3 is not driven during the diaphragm exchange. Thecoils 11 are without current. - In this operating state of the pump, the
armature 3 is moveable along its displacement path. Theactuating devices 32 or the fixingdevices 33 are in each case in their release position or non-fixing position. Theopenings 41 are oriented in such a way that thearmature 3 can pass through them. Theopenings 41 and thearmature 3 have a common centre plane. - The
actuating devices 32 are to be manually pivoted from their release position about thecentre axis 34 into their fixing position. Theactuating devices 32 can be pivoted simultaneously or consecutively. The actuating handles 36, which allow a simple and reliable force transmission, are to be used for the manual pivoting of theactuating devices 32. The pivoting of theactuating devices 32 leads to a corresponding pivoting of the fixingdevices 33 about thecentre axis 34 from their release position into their fixing position. - A centring of the
armature 3 firstly takes place. This centring is shown inFIGS. 8 and 9 . It takes place automatically during the displacement of the fixingdevices 33 from their release position into their fixing position. The fixingdevices 33 thus also ensure a centring. The twocentring flanks 48 of a fixingdevice 33 come to rest synchronously on thearmature 3. Thearmature 3 preferably has corresponding engagement faces 51 for the centring flanks 48. The engagement faces 51 are located in the region of the longitudinal ends of thearmature 3 and are substantially perpendicular to thelongitudinal centre axis 13. A relative movement takes place between the engagement faces 51 and the associated centring flanks 48. Because of the inclined course of the centring flanks 48, thearmature 3 is displaced from theactuating device 32 which has just been actuated along thelongitudinal centre axis 13 in the direction of theother actuating device 32. By actuating the twoactuating devices 32, a centring of thearmature 3 takes place in the direction of thelongitudinal centre axis 13. Each fixingdevice 33 presses thearmature 3 away from it, which leads to a centring of thearmature 3. Thearmature 3, after centring, is located centrally between the U-legs. Furthermore, the centring flanks 48, during a centring of thearmature 3, also act in a direction which is perpendicular to thelongitudinal centre axis 13. Thearmature 3 is thus also radially centred with respect to thelongitudinal centre axis 13. The further theactuating devices 32 or the fixingdevices 33 are pivoted into the fixing positions, the further thearmature 3 is displaced with respect to its position. - The
diaphragms 2 fastened to thearmature 3 prevent a pivoting of thearmature 3 about thelongitudinal centre axis 13 on actuation of the fixingdevices 33. The centring flanks 48 furthermore prevent thearmature 3 from carrying out a pivoting movement about thelongitudinal centre axis 13 upon actuation of the fixingdevices 33. - The fixing
devices 33 then reach their fixing positions. These are shown inFIGS. 10 and 11 . The contact faces 47 then rest flat on the longitudinal ends of thearmature 3 and thus secure these axially. Theopenings 41 and thearmature 3 are no longer oriented one after the other or with respect to one another. Thearmature 3 can no longer pass through theopenings 41. Thespring arms 50 prevent thefixing devices 33 being able to be moved unintentionally from their fixing position. They furthermore also fix thearmature 3. Thespring arms 50, in this case, rest on thearmature 3. Thediaphragms 2 can then be removed from thearmature 3. The pump heads 18 are to be removed for this purpose. - Furthermore, the contact flanks 87 of a
base body 39 then rest laterally on thearmature 3 on the opposing sides of thearmature 3. The contact flanks 87 of the twobase bodies 39 are, in this case, spaced apart in the axial direction along thelongitudinal centre axis 13. The contact flanks 87 prevent both a rotation of thearmature 3 about thelongitudinal centre axis 13 and also prevent the latter approaching thecoils 11. The contact flanks 87 therefore form fixing parts, which fix thearmature 3 transverse to its displacement path. - With a reverse actuation of the
actuating devices 32, thearmature 3 is released again. - With reference to
FIGS. 12 to 19 , the second embodiment of the invention will be described below. Identical components receive the same reference numerals as in the first embodiment, to which reference is hereby made. Structurally different, but functionally similar components receive the same reference numerals with an “a” thereafter. The essential difference between the first embodiment and the second embodiment is the configuration of theactuating devices 32 a and the fixingdevices 33 a. Theactuating devices 32 a and the fixingdevices 33 a are configured separately here. - The pump has two
actuating devices 32 a. Eachactuating device 32 a has anactuating disc 52, which is circular and is housed in the receivingspace 8. The actuating handle 36 projects radially from theactuating disc 52. Theopenings 41 axially pass through theactuating discs 52, which are point-symmetrical. Eachactuating disc 52 has anouter face 37 and aninner face 38. Two centringwebs 53 each with acentring flank 48 a project from eachinner face 38. The centringwebs 53 extend curved in an arcuate manner They each have uniform curvature and extend at a constant spacing from thecentre axis 34. Each centringweb 53 borders on alongitudinal side opening 41. The centringwebs 53 of anactuating device 32 a are, in this case, arranged obliquely opposing one another adjacent to the longitudinal ends 42, 43. The centring flanks 48 a extend obliquely to theinner face 38 and to thecentre axis 34. - Furthermore provided in each
actuating disc 52 are twolinks 54, which issue from theinner face 38 thereof. Thelinks 54 may be groove-like. They can, however, also completely pass through theactuating discs 52. Thelinks 54 of anactuating device 32 a are arranged adjacent to thelongitudinal sides link 54 has a radially outer idlingportion 55, a linkpin actuating portion 56 adjoining the idlingportion 55 and a radially inner fixingportion 57 adjoining the linkpin actuating portion 56. The fixingportions 57 are in each case arranged adjacent to theopenings 41. They run substantially straight. Their spacing from thecentre axis 34 is substantially constant. Proceeding from the fixingportions 57, the spacing in the linkpin actuating portions 56 from thecentre axis 34 increases greatly. The idlingportions 55 again have a substantially constant spacing from thecentre axis 34. - The pump furthermore has two fixing
devices 33 a. Each fixingdevice 33 a in turn comprises twowedge mechanisms 58. Eachwedge mechanism 58 has anouter coupling wedge 59 and an innergripping wedge 60. A grippingwedge 60 is in each case associated with acoupling wedge 59. These virtually form a wedge pair. - Each
wedge mechanism 58 has acarrier 61. Thecarriers 61 in each case comprise a fixingpiece 68, which, when the pump is assembled, has ascrew 63 passing through it and is located adjacent to the U-base 6. Thescrews 63 are screwed into theyokes 9, so thecarriers 61 are also fixed to theyokes 9 thereby. Different securing is alternatively possible. - Furthermore, each
carrier 61 has aholder 64, which is preferably configured in a rod-like manner and is connected to a fixingpiece 62. Theholders 64 of a fixingdevice 33 a run parallel to one another. They extend parallel to the U-legs 7 and run away from the fixingpieces 62 perpendicular to the U-base 6. Acoupling wedge 59 is fastened to eachholder 64. Eachcoupling wedge 59 has an obliquely running,free wedge face 65, which is remote from the associatedholder 64. The wedge faces 65 of a fixingdevice 33 a face one another. Alink pin 71 is provided on eachcoupling wedge 59 and engages in thelink 54 of theadjacent actuating device 32 a. - The two
holders 64 of a fixingdevice 33 a are connected to one another by twoguide rods 66. Theguide rods 66 extend parallel to one another and substantially perpendicular to theholders 64. They run parallel to the U-base 6 and to theU-legs 7. They are fastened to theholders 64 in the region of the mutually opposing longitudinal ends of theholders 64. Theguide rods 66 extend at a spacing from the longitudinal sides of thearmature 3. - The gripping
wedges 60 are displaceably guided along theguide rods 66. They have corresponding guide recesses 67 for this. Each grippingwedge 60 has an obliquely runningwedge face 68, which rests on thewedge face 65 of an associatedcoupling wedge 59. Furthermore, each grippingwedge 60 has a free, straightgripping face 47 a, which is arranged opposing thewedge face 68. The wedge faces 47 a form fixing parts to fix thearmature 3. The gripping faces 47 a of a fixingdevice 33 a face one another. At least onespring element 70 is provided between the twogripping wedges 60 of a fixingdevice 33 a. A pressure helical spring, which forms thespring element 70, is arranged here on eachguide rod 66. However, instead of helical pressure springs 70, leaf springs are preferably provided. The helical pressure springs 70 are supported on the gripping faces 47 a of the grippingwedges 60 of a fixingdevice 33 a. Thespring elements 70, when using, for example, guiding T-grooves on the sliding wedge faces 65 of thecoupling wedges 59, can also be completely dispensed with. - The mode of functioning of the
actuating devices 32 a or the fixingdevices 33 a will be described below. In this case, the release position of theactuating devices 32 a or the fixingdevices 33 a is assumed, which is shown inFIGS. 14 and 16 . The gripping faces 47 a of thewedge mechanisms 58 are spaced apart from one another there. The spacing of the gripping faces 47 a from one another is larger than the width of thearmature 3. Thearmature 3 can move along thelongitudinal centre axis 13. Thearmature 3 may pass through theopenings 41. - At least one
actuating device 32 a or fixingdevice 33 a has to be actuated to fix thearmature 3. The actuating handle 36 is preferably to be used for this. During an initial pivoting of anactuating device 32 a, the centring flanks 48 a synchronously come to rest on the adjacent longitudinal end of thearmature 3, so thearmature 3 is displaced along itslongitudinal centre axis 13. Thearmature 3 is pressed in the direction of theother actuating device 32 a. The idlingportion 55, in this case, moves past therespective link pin 71. No forces are transmitted between therespective link pin 71 and thelinks 54. The idlingportions 55 thus have no actuating function. The fixingdevice 33 a is not yet actuated. - On a further pivoting of the
actuating device 32 a, the linkpin actuating portions 56 arrive at therespective link pin 71. This is shown inFIGS. 17 and 18 . A force transmission takes place here between the linkpin actuating portions 56 and the link pins 71. In this case, a relative movement takes place between the mutually abutting wedge faces 65, 68. The gripping faces 47 a therefore approach one another. They also approach thearmature 3, which has already been centred and is now located between the gripping faces 47 a of the fixingdevices 33 a. When guiding the gripping faces 47 a of a fixingdevice 33 a together, thespring elements 70 are compressed. - The final fixed position is shown in
FIG. 19 . The gripping faces 47 a of a fixingdevice 33 a rest laterally in a planar manner on thearmature 3 and oppose one another. They thus secure thearmature 3 locally. It is also centred in the process. A clamping fixing is present here. The link pins 71 are in the fixingportions 57. They are fixed there. The fixingdevices 33 a ensure a fixing of thearmature 3 at two points which are spaced apart from one another along thelongitudinal centre axis 13. A front and a rear fixing virtually takes place. - With a reverse actuation of the
actuating devices 32 a, thearmature 3 is released again in an analogous manner. - A third embodiment of the invention will be described below with reference to
FIGS. 20 to 25 . Identical components receive the same reference numerals as in the previous embodiments, to which reference is hereby made. Structurally different but functionally similar components receive the same reference numerals with a “b” thereafter. Compared to the two previous embodiments, theactuating devices 32 b and the fixingdevices 33 b are configured differently. Theactuating devices 32 b are similar to theactuating devices 32 a according to the second embodiment. - The pump has precisely one
actuating device 32 b. Alternatively, however, twoactuating devices 32 b may also be provided again. Theactuating device 32 b again has a circular actuating disc 52 b, which is again point-symmetrical with respect to itscentre axis 34. An actuating handle 36 projects radially from the actuating disc 52 b. The actuating disc 52 b has anopening 41 passing through it on the end face. Furthermore, twolinks 54 b, are provided in the actuating disc 52 b, which issue from theinner face 38 thereof Thelinks 54 b may be groove-like. However, they may also completely pass through the actuating disc 52 b. Thelinks 54 b extend in a curved manner around thecentre axis 34. - Each
link 54 b has a linkpin actuating portion 56 b and a radially inner fixingportion 57 b. The linkpin actuating portions 56 b start in the region of the longitudinal ends 42 or 43 of theopening 41. They extend according toFIG. 23 from theopening 41 clockwise and in the process approach thecentre axis 34. The linkpin actuating portions 56 b, in the region adjacent to the longitudinal ends 42, 43, have a first radius of curvature, which is larger than a second radius of curvature, which is present at the inner end of the linkpin actuating portions 56 b. Adjoining the inner end of the linkpin actuating portions 56 b are the fixingportions 57 b, which run straight and have substantially a constant spacing from thecentre axis 34. - The pump has two fixing
devices 33 b. Each fixingdevice 33 b has acarrier 61 b, which is fastened by a fixingpiece 62 b to theadjacent yoke 9. At least oneguide rod 66 b is fastened to each fixingpiece 62 b. Twoguide rods 66 b are provided here per fixingpiece 62 b and run parallel to one another. Theguide rods 66 b extend parallel to the U-legs 7 and substantially perpendicular to the U-base 6. - Two clamp-like, elongate fixing
parts 47 b are displaceably guided on theguide rods 66 b. The fixingparts 47 b are configured identically. Each fixingpart 47 b has twoguide recesses 67 b, which have theguide rods 66 b passing through them. The fixingparts 47 b in each case have an elongate groove-like or channel-like encompassingreceiver 75. The encompassingreceivers 75 haveintroduction openings 72, which oppose one another. - Each encompassing
receiver 75 has two longitudinal sides and two longitudinal ends 76. Provided on eachlongitudinal end 76 is acentring flank 48 b, which is configured as an oblique face and axially limits the encompassingreceiver 75. Acentring flank 63, which is configured as an oblique face and laterally limits the encompassingreceiver 75, is provided on each longitudinal side. The centring flanks 48 b oppose one another. The length of the encompassingreceivers 75 reduces from the outside to the inside in the region of the centring flanks 48 b. The centring flanks 73 oppose one another. The width of the encompassingreceivers 75 reduces from the outside to the inside in the region of the centring flanks 73. - Furthermore, an axially projecting
link pin 71 is provided on eachlongitudinal end 76 of a fixingpart 47 b. When the pump is assembled, the link pins 71 engage in thelinks 54 b. - The mode of functioning of the pump will be described in more detail below. In this case, the operating position shown in
FIG. 22 is assumed. The fixingparts 47 b are located there spaced apart from thearmature 3, so the latter is released and can move along itslongitudinal centre axis 13. - To change a
diaphragm 2, theactuating device 32 b has to be pivoted by its actuatinghandle 36 about thecentre axis 34. In this case, thelinks 54 b are also moved accordingly. A relative movement takes place between thelinks 54 b and the link pins 71. The link pins 71 move along the linkpin actuating portions 56 b in the direction of the fixingportions 57 b. In this case, the fixingparts 47 b are actuated and moved toward one another along theguide rods 66 b, which is brought about by the link coupling. In the fixing position, which is shown inFIG. 25 , the fixingparts 47 b and thearmature 3 are engaged. The two longitudinal sides of thearmature 3 are located in the encompassingreceivers 75. In the fixing position, the link pins 71 are locally secured in the fixingportions 57 b. The fixingdevices 33 b ensure fixing of thearmature 3 at two points, which are spaced apart from one another along thelongitudinal centre axis 13. A front and a rear fixing virtually takes place. - When the fixing
parts 47 b approach thearmature 3, the centring flanks 48 b bring about a centring of thearmature 3 along thelongitudinal centre axis 13. Furthermore, the centring flanks 73 bring about a centring of thearmature 3 transversely to itslongitudinal centre axis 13. - A fourth embodiment of the invention will be described below with reference to
FIGS. 26 to 32 . Identical components received the same reference numerals as the previous embodiments, to which reference is hereby made. Structurally different, but functionally similar components receive the same reference numerals with a “c” thereafter. Compared to the two previous embodiments, theactuating devices 32 c and the fixingdevices 33 c are configured differently. - The pump comprises two
actuating devices 32 c and two fixingdevices 33 c. Two fixingpieces 62 c are provided here, which are fastened, when the pump is assembled, adjacent to the U-base 6 on theyokes 9. Two mutuallyparallel holders 64 c are rigidly connected to each fixingpiece 62 c and run away from the U-base 6 and in each case have a bearing opening 79 at their free end. Theholders 64 c extend perpendicularly to the U-base 6. The bearingopenings 79 of a fixingdevice 33 c have a common bearing axis, which runs parallel to the U-base 6. A fixingpart 47 c is displaceably guided parallel to the U-base 6 in each bearingopening 79. The fixingparts 47 c are in each case configured in a pin-like or bolt-like manner, with them preferably being circular in cross section. They in each case have anouter actuating end 80 and an inner fixingend 81 opposing the actuatingend 80. The fixingparts 47 c taper conically in the region of their fixing ends 81 with the formation of centringparts 48 c. In the region of the actuating ends 80, the fixingparts 47 c in each case have a radially projecting head. Ahelical spring 82 is arranged on each fixingpart 47 c. The latter in each case rests on the head of the fixingpart 47 c and on therespective holder 64 c and presses the fixingpart 47 c outwardly or away from therespective holder 64 c. - The
actuating devices 32 c are in each case annular. They in each case have a radially projecting actuatinghandle 36. Twocontrol cams 54 c, which are identically configured and run at the edge on therespective actuating device 32 c around thecentre axis 34, are provided in eachactuating device 32 c. Thecontrol cams 54 c are open toward thecentre axis 34. Eachcontrol cam 54 c has a control cam beginning 84 and acontrol cam end 85. The radial spacing of the base face limiting thecontrol cams 54 c from thecentre axis 34 in each decrease from the control cam beginning 84 with the formation of a linkpin actuating portion 56 c in the direction of thecontrol cam end 85. The decrease can take place regularly or irregularly. - Fixing recesses 86 are configured in the
armature 3. Provided in the region of each longitudinal end of thearmature 3 are two fixingrecesses 86, which oppose one another and have a centre axis extending parallel to the U-base 6. The fixing recesses 86 are conically configured and are open toward the adjacent fixingparts 47 c. The fixing recesses 86 taper from the outside to the inside. - When the pump is assembled, the heads of the fixing
parts 47 c rest on the inside of thecontrol cams 54 c. The heads are pressed by thehelical springs 82 onto thecontrol cams 54 c. The fixing ends 81 of the fixingparts 47 c of a fixingdevice 33 c face one another. The fixingparts 47 c form link pins 71 c. - The mode of functioning of the pump will be described in more detail below. The starting point is
FIG. 30 in this case. According toFIG. 30 , thearmature 3 is released. The fixing ends 81 are spaced apart from the fixing recesses 86. During a pivoting of theactuating devices 32 c, the actuating ends 80 slide on thecontrol cams 54 c. In this case, the fixingparts 47 c are pressed toward one another or in the direction of thearmature 3 by thecontrol cams 54 c in the linkpin actuating portions 56 c. - As emerges from
FIG. 31 , owing to the conical configuration of the fixingparts 47 c and the fixing recesses 86, a centring of thearmature 3 takes place on introduction of the fixing ends 81 in the fixing recesses 86. - According to
FIG. 32 , thearmature 3 is locally fixed. The fixingparts 47 c and the fixing recesses 86 have a positive connection. The fixingdevices 33 c ensure a fixing of thearmature 3 at two points, which are spaced apart from one another along thelongitudinal centre axis 13. A front and a rear fixing virtually takes place.
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010038871A DE102010038871A1 (en) | 2010-08-04 | 2010-08-04 | pump |
DE102010038871.8 | 2010-08-04 | ||
PCT/EP2011/063239 WO2012016957A2 (en) | 2010-08-04 | 2011-08-01 | Pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130129535A1 true US20130129535A1 (en) | 2013-05-23 |
Family
ID=44543205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/813,791 Abandoned US20130129535A1 (en) | 2010-08-04 | 2011-08-04 | Pump |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130129535A1 (en) |
EP (1) | EP2601412B1 (en) |
JP (1) | JP2013532799A (en) |
CN (1) | CN103052800A (en) |
DE (1) | DE102010038871A1 (en) |
WO (1) | WO2012016957A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170298919A1 (en) * | 2016-04-18 | 2017-10-19 | Ingersoll-Rand Company | Direct drive linear motor for conventionally arranged double diaphragm pump |
EP3599428A1 (en) * | 2018-07-26 | 2020-01-29 | Lg Electronics Inc. | Pump assembly and cooking appliance therewith |
EP4012182A1 (en) * | 2020-12-09 | 2022-06-15 | Delavan AG Pumps, Inc. | Pump with quick connect pump head and pump monitoring and control systems |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL3377146T3 (en) * | 2015-11-20 | 2021-10-11 | Amf Medical Sa | Micropump and method of manufacturing a micropump |
WO2019044234A1 (en) * | 2017-08-28 | 2019-03-07 | パナソニックIpマネジメント株式会社 | Elastic support structure |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3027314A1 (en) * | 1980-07-18 | 1982-02-11 | J. Wagner Gmbh, 7990 Friedrichshafen | Membrane pump for high pressures - has interchangeable pumping units mounted on separate drive unit |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176382U (en) * | 1983-05-12 | 1984-11-26 | 御器谷 俊雄 | Reciprocating rod holding device for electromagnetic reciprocating motor |
JP2531877Y2 (en) * | 1988-12-15 | 1997-04-09 | 日東工器株式会社 | Electromagnetic diaphragm pump |
JPH05141361A (en) * | 1991-11-15 | 1993-06-08 | Matsushita Electric Works Ltd | Diaphragm pump |
US5466133A (en) * | 1994-06-30 | 1995-11-14 | Tuck, Jr.; Alan D. | Peristaltic pump and diaphragm therefor |
US6152704A (en) * | 1998-09-30 | 2000-11-28 | A-Med Systems, Inc. | Blood pump with turbine drive |
DE102008049900B3 (en) * | 2008-10-05 | 2010-01-07 | Thomas Magnete Gmbh | Membrane pump for conveying of hydraulic fluid in hydraulic system, has housing limiting accommodation chambers for drive block and valve block, and membrane arranged at side of front wall turned towards valve block and covering opening |
-
2010
- 2010-08-04 DE DE102010038871A patent/DE102010038871A1/en not_active Ceased
-
2011
- 2011-08-01 EP EP11741441.7A patent/EP2601412B1/en not_active Not-in-force
- 2011-08-01 WO PCT/EP2011/063239 patent/WO2012016957A2/en active Application Filing
- 2011-08-01 CN CN2011800380734A patent/CN103052800A/en active Pending
- 2011-08-01 JP JP2013522224A patent/JP2013532799A/en active Pending
- 2011-08-04 US US13/813,791 patent/US20130129535A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3027314A1 (en) * | 1980-07-18 | 1982-02-11 | J. Wagner Gmbh, 7990 Friedrichshafen | Membrane pump for high pressures - has interchangeable pumping units mounted on separate drive unit |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170298919A1 (en) * | 2016-04-18 | 2017-10-19 | Ingersoll-Rand Company | Direct drive linear motor for conventionally arranged double diaphragm pump |
EP3599428A1 (en) * | 2018-07-26 | 2020-01-29 | Lg Electronics Inc. | Pump assembly and cooking appliance therewith |
KR20200012309A (en) * | 2018-07-26 | 2020-02-05 | 엘지전자 주식회사 | Pump assembly and cooking appliance therewith |
US11561012B2 (en) | 2018-07-26 | 2023-01-24 | Lg Electronics Inc. | Pump assembly and cooking appliance with pump assembly |
KR102611409B1 (en) | 2018-07-26 | 2023-12-06 | 엘지전자 주식회사 | Pump assembly and cooking appliance therewith |
EP4012182A1 (en) * | 2020-12-09 | 2022-06-15 | Delavan AG Pumps, Inc. | Pump with quick connect pump head and pump monitoring and control systems |
Also Published As
Publication number | Publication date |
---|---|
CN103052800A (en) | 2013-04-17 |
WO2012016957A2 (en) | 2012-02-09 |
EP2601412A2 (en) | 2013-06-12 |
WO2012016957A3 (en) | 2012-05-24 |
EP2601412B1 (en) | 2014-07-02 |
JP2013532799A (en) | 2013-08-19 |
DE102010038871A1 (en) | 2012-02-09 |
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