EP2891798A1 - Dispositif de pompage de liquides épais, en particulier pour une pompe à liquides épais mobile - Google Patents
Dispositif de pompage de liquides épais, en particulier pour une pompe à liquides épais mobile Download PDFInfo
- Publication number
- EP2891798A1 EP2891798A1 EP14197774.4A EP14197774A EP2891798A1 EP 2891798 A1 EP2891798 A1 EP 2891798A1 EP 14197774 A EP14197774 A EP 14197774A EP 2891798 A1 EP2891798 A1 EP 2891798A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- bearing
- pumping device
- piece
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011345 viscous material Substances 0.000 title 2
- 238000005086 pumping Methods 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 32
- 230000008719 thickening Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0084—Component parts or details specially adapted therefor
- F04B7/0088—Sealing arrangements between the distribution members and the housing
- F04B7/0096—Sealing arrangements between the distribution members and the housing for pipe-type distribution 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
- F04B7/0233—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated a common distribution member forming a single discharge distributor for a plurality of pumping chambers
- F04B7/0258—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an orbital movement, e.g. elbow-pipe type members
Definitions
- the invention relates to a thick matter pumping device for forming a slurry pump, in particular mobile slurry pump, as it can be used for example for pumping concrete.
- the object of the invention is in particular to design a structural design of a pivotal connection between the S-tube and the output pipe piece simpler.
- the object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
- the invention relates to a thick matter pumping device, in particular for a mobile slurry pump, with an S-tube having an input and an output offset axially parallel to the input, with at least one bearing for supporting the S-tube, which has a bearing axis to in that the outlet of the S-tube is arranged at least substantially coaxially, and which has at least two bearing surfaces which are intended to absorb forces acting in the radial direction, and with an outlet tube piece adjoining the S-tube, provided for this purpose to be connected to the outlet of the S-tube.
- the bearing surfaces are at least partially formed as sealing surfaces, which are intended to seal the S-tube and the output tube piece against each other.
- a storage of the S-tube with respect to the starting pipe piece can be simplified, without at the same time a seal must be provided, which separates the bearing of the thick material.
- bearing surfaces are provided for both storage and the seal, a pivotal connection between the S-tube and the output pipe piece can be designed structurally simpler.
- bearing surfaces are to be understood as meaning, in particular, a bearing surface assigned to the S-tube and a bearing surface associated with the starting tube piece, which are provided for forming the bearing.
- the bearing surfaces are designed as sliding surfaces, which are provided to simultaneously form the sealing surfaces by their contact.
- On a arranged within the bearing surfaces seal is omitted.
- provided is intended to be understood in particular specially programmed, designed and / or equipped. The fact that an object is intended for a specific function should in particular mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
- the bearing is designed as a sliding bearing.
- the bearing can be structurally particularly simple.
- the bearing can be dispensed with a complex design with rolling elements that require a special seal, whereby the design can be kept structurally simple.
- the S-tube and / or the output tube piece on an inner wall, which merges directly into the associated bearing surface.
- the bearing can be made particularly compact, since in such a configuration additional components between the inner wall and the bearing surface is dispensed with.
- An “inner wall” should be understood in this context, in particular a surface that limits a filled during operation with thick matter space. Under “immediate merge into each other "should be understood in particular that the inner wall and the bearing surface continuously merge into one another, in particular without material jump.
- the bearing surfaces have a radial component in at least one partial region and an axial component in at least one partial region.
- the bearing surfaces radial forces that are necessary in particular for storage, and axial forces that are necessary for tight connection, are transmitted simultaneously, whereby a stable storage can be achieved with good sealing effect at the same time.
- a "radial component” is to be understood in particular as meaning that the bearing surface has a surface normal in at least one point whose component is greater than zero in the radial direction.
- an “axial component” is to be understood in particular that the bearing surface in at least one point has a surface normal whose component is greater than zero in the axial direction.
- the bearing surface can simultaneously have a radial and axial component in a partial area.
- the bearing surface has a first portion with only axial components and a second portion with only radial components.
- the bearing surfaces are each at least partially formed as inclined surfaces.
- the formation of the bearing surfaces can be realized particularly easily as sealing surfaces with axial and radial components.
- the bearing surfaces each have at least one step.
- the bearing surface can be subdivided particularly advantageously into subregions with an axial component and subregions with a radial component, whereby, depending on the design of the subregions, a particular high sealing effect and / or a particularly stable bearing can be realized.
- the bearing surfaces are at least partially formed as curved surfaces. As a result, a particularly stable guidance can be realized.
- the thick matter pumping device has at least one guide ring which forms at least one of the bearing surfaces.
- a production can be simplified because of the formation of the bearing surfaces by means of an independent guide ring standardized manufacturing process for the formation of Storage surfaces can be used, such as a machining production of the guide ring by turning and / or milling.
- a guide ring is particularly advantageous for the S-tube associated bearing surface, since the S-tube is difficult to machine by its design.
- a guide ring can also be provided for the bearing tube piece assigned to the bearing surface.
- the guide ring is axially displaceable along the bearing axis.
- the guide ring can be provided to compensate for an axial clearance between the S-tube and the output pipe piece, which in particular manufacturing tolerances, but also wear and tear, can be easily compensated.
- the thick matter pumping device has a clamping element, which is provided to act on the guide ring with a biasing force has.
- a clamping element which is provided to act on the guide ring with a biasing force has.
- the output tube piece has a tube element and the clamping element is supported with one end against the guide ring and with one end against the tube element of the output tube piece.
- the thick matter pumping device has a material feed container which at least partially encloses the at least one bearing and which is provided to collect escaping material.
- FIGS. 1 and 2 show a slurry pump with a Dickstoffpumpvorraum, which is intended for mounting on a commercial vehicle.
- the sludge pump forms a mobile slurry pump.
- the sludge pump comprises a material feed tank 31 a for supplying thick material, two pumping cylinders 32 a, 33 a for generating a pumping power, the high-solids pumping device, which in particular has a subsequent to the pump cylinder 32 a, 33 a diverter 34 a, and a subsequent to the diverter valve 34 a delivery line 35 a to promote of the thick matter.
- the thick matter pump comprises an actuator, not shown.
- the actuator is provided for an opposite operation of the two pumping cylinders 32a, 33a.
- one of the pumping cylinders 32a, 33a executes one pumping stroke, while at the same time the other pumping cylinder 32a, 33a performs a suction stroke.
- Each of the pump cylinders 32a, 33a has an inlet and outlet opening 36a, 37a, through which the thick material during the suction stroke is sucked into the corresponding pump cylinder 32a, 33a and pressed out again from the pump cylinder 32a, 33a during the pumping stroke.
- the pump cylinders 32a, 33a are arranged axially parallel to one another.
- the pipe switch 34a is provided to connect the pump cylinders 32a, 33a alternately with the delivery line 35a.
- the pipe switch 34a has an S-tube 10a, which is arranged pivotably about a bearing axis 14a.
- the S-tube 10a has two switch positions. In the first switching position, the S-tube 10a connects the inlet and outlet opening 36a of the first pumping cylinder 32a with the conveying line 35a. In the second switching position, the S-tube 10a connects the inlet and outlet opening 37a of the second pumping cylinder 33a with the delivery line 35a.
- the inlet and outlet ports 36a, 37a of the other pumping cylinder 32a, 33a is connected to the material supply container 31 a, whereby depending on the switching position of a pump cylinder 32a, 33a with the delivery line 35a and the other pump cylinder 32a, 33a with the material feed container 31 a connected is.
- the actuator system is intended to control the pipe switch 34a in response to a movement of the pump cylinders 32a, 33a.
- the S-tube 10 a has an input 11 a and an axis-parallel to the input 11 a offset output 12 a.
- the thick matter pumping device comprises a bearing which pivotally supports the S-tube 10a.
- the input 11 a of the S-tube 10 a is arranged axially parallel to the bearing axis 14 a.
- the exit 12a of the S-tube 10a is arranged coaxially with the bearing axis 14a.
- the storage of the S-tube 10a is at least partially via the Akuatorik having adjusting elements, which are intended to pivot the S-tube 10a about the bearing axis 14a.
- the inlet 11 a of the S-tube 10 a is provided to be selectively connected to one of the pump cylinders 32 a, 33 a.
- the thick matter pumping device has a spectacle plate 38a with two recesses, which are each associated with one of the pumping cylinders 32a, 33a.
- the S-tube 10a is braced between the output tube piece 17a and the spectacle plate 38a.
- the spectacle plate 38a is arranged fixed to the frame. Depending on the switching position of the input 11 a of the S-tube 10 a is connected to either one or the other recess of the spectacle plate 38 a.
- the S-tube 10a is formed in several parts.
- the S-tube 10a has a tube member 29a and a not-shown on the input side arranged sliding ring, which is intended to be shifted for switching on the spectacle plate 38a.
- the S-tube 10a has a spring element not shown in more detail, which is arranged between the tubular element 29a and the sliding ring.
- the spring element is provided in particular for a pressure-tight connection of the sliding ring with the spectacle plate 38a.
- the axially displaceable sliding ring which is displaced when switching the S-tube 10a between the switching positions on the spectacle plate 38a, is provided in particular to compensate for tolerances of the spectacle plate 38a.
- the exit 12a of the S-tube 10a is intended to be connected to the delivery line 35a.
- the thick matter pumping device has an outlet tube piece 17a, to which the delivery line 35a is connected.
- the output pipe piece 17a is designed as a frame-mounted component.
- the delivery line 35a is permanently but releasably connected to the output pipe piece 17a.
- the output tube piece 17a is arranged after the S-tube 10a.
- the S-tube 10a is pivotally supported relative to the output tube piece 17a about the bearing axis 14a defined by the bearing.
- the outlet 12a of the S-tube 10a which is arranged substantially coaxially with the bearing axis 14a, is always connected to the outlet tube 17a, irrespective of the switching position of the S-tube 10a, i. the thick matter, which is pressed into the S-tube 10 a via the inlet 11 a, is always guided into the outlet tube piece 17 a and thus into the delivery line 35 a, regardless of the switching position of the S-tube 10 a.
- the bearing has a bearing 13a with two bearing surfaces 15a, 16a.
- the first bearing surface 15a is associated with the S-tube 10a.
- the second bearing surface 16a is associated with the output pipe piece 17a.
- the bearing surfaces 15a, 16a are rotationally symmetrical. In cross-sectional planes perpendicular to the bearing axis 14a, the bearing surfaces 15a, 16a each have a round inner cross-section. The bearing surfaces 15a, 16a each form a sliding surface, which is in direct contact with the respective other bearing surface 15a, 16a.
- the bearing surfaces 15a, 16a are simultaneously formed as sealing surfaces, which are provided to connect the S-tube 10a and the output tube piece 17a tightly together.
- the bearing surfaces 15a, 16a are sealed from each other.
- the S-tube 10a and the outlet tube piece 17a are braced against each other in the axial direction.
- a sealing effect, which is provided by the bearing surfaces 15a, 16a designed as sealing surfaces, depends in particular on a clamping force with which the S-tube 10a and the outlet tube piece 17a are pressed against one another.
- the bearing 13a is designed as a slide bearing which at the same time forms a seal for the connection between the S-tube 10a and the outlet tube piece 17a.
- the connection between the S-tube 10a and the output tube piece 17a is sealed in the illustrated embodiment only by the bearing 13a.
- On an additional sealing element, such as in particular within the bearing 13 a or adjacent to the bearing 13 a arranged sealing ring is omitted.
- the S-tube 10a and the output tube piece 17a each have a surface which forms an inner wall 18a, 19a in a partial region, which is provided for guiding the thick material, and which form the bearing surfaces 15a, 16a in a further partial region 20a, 23a.
- the inner wall 18a of the S-tube 10a and the inner wall 19a of the output tube piece 17a each pass directly into the associated bearing surface 15a, 16a.
- the surfaces each have a rounding or an edge. On one edge, the inner wall 18a of the S-tube 10a passes directly into the bearing surface 15a associated with the S-tube 10a.
- At the other Edge goes over the inner wall 19a of the output pipe piece 17a directly into the output pipe piece 17a associated bearing surface 16a.
- the S-tube 10a and the output tube piece 17a have a common, the bearing axis 14a circumferential contact line.
- the contact line is defined as a minimum radius line along which the bearing surface 15a associated with the S-tube 10a and the bearing surface 16a associated with the output tube 17a contact.
- the inner walls 18a, 19a pass into the corresponding bearing surface 15a, 16a.
- the bearing surfaces 15a, 16a have over their entire extent a radial component and an axial component. Due to the axial component, the bearing surfaces 15a, 16a are provided to provide the sealing effect. In particular, the axial component of the bearing surfaces 15a, 16a receives an axial biasing force with which the output tube piece 17a and the S-tube 10a are pressed against each other. Due to the axial component, the output tube piece 17a and the S-tube 10a are supported against each other in the axial direction. The radial component of the bearing surfaces 15a, 16a receives the forces acting in the radial direction on the S-tube 10a and supports them against the outlet tube piece 17a, which in turn is fixed to the frame. Due to the radial component, the bearing surfaces 16a, 16a are provided to arrange the output 12a of the S-tube 10a and the output tube piece 17a coaxially with the bearing shaft 14a.
- the bearing surfaces 15a, 16a are formed as inclined surfaces, which at the same time have the radial component and the axial component.
- the bearing surfaces 15a, 16a have over their entire area surface normal, which include an oblique angle with the bearing axis 14a.
- the bearing surfaces 15a, 16a are thus formed with respect to the bearing axis 14a each as inclined surfaces. The surfaces at approximately the same angle at each point of the respective bearing surface 15a, 16a with the bearing axis 14a.
- the angle which the surface normals of the bearing surface 16a associated with the output tube piece 17a include with the bearing axis 14a is 135 degrees at each point.
- the two bearing surfaces 15a, 16a are thus oriented in each point antiparallel to each other.
- the axial component of the bearing surface 15a, which is associated with the S-tube 10a is oriented along the flow direction 39a of the thick material.
- the axial component of the bearing surface 16a, which is associated with the output pipe piece 17a is oriented counter to the flow direction 39a of the thick material.
- the bearing surface 15a which is associated with the S-tube 10a, is formed in the shape of a cylindrical cone, the tip of which is directed along the flow direction 39a of the thick material.
- the bearing surface 16a which is associated with the output pipe piece 17a, formed in the form of a funnel, which tapers along the flow direction 39a.
- the multipart S-tube 10a has an output side arranged guide ring 26a, which is fixedly connected to the tube member 29a.
- the guide ring 26a forms the bearing surface 15a associated with the S-tube 10a.
- the S-tube 10a has a sealing ring 40a, which seals the guide ring 26a and the tube element 29a against each other.
- the guide ring 26a has a recess which is provided for receiving the sealing ring 40a.
- the output pipe piece 17a is also formed in several parts.
- the output pipe piece 17a has a short pipe element 30a for connecting the feed line 35a and a guide ring 27a.
- the guide ring 27a forms the bearing surface 16a, which is associated with the output pipe piece 17a.
- the guide ring 27a of the output tube piece 17a is axially displaceable relative to the tube element 30a of the output tube piece 17a along the bearing axis 14a.
- the pipe member 30a is provided to guide the guide ring 27a of the output pipe piece 17a along the bearing shaft 14a.
- the guide ring 27 a has a recess which is provided for receiving a sealing ring 41 a.
- the thick matter pumping device has a clamping element 28a, which is provided to apply a biasing force to the guide ring 27a of the starting pipe section 17a.
- the clamping element 28a is executed in the illustrated embodiment in the form of a clamping ring.
- the clamping element 28a has a first end, with it is supported against the pipe member 30a of the output pipe piece 17a and a second end with which it is supported against the guide ring 27a.
- the clamping element 28a is formed from an elastically deformable material.
- the biasing member 28a is formed of a rubbery material and forms a resiliently compressible bulk body that completely fills a region between the guide ring 27a and the tubular member 30a.
- the clamping element 28a may also be formed by a spring element, for example in the form of a spiral spring or a plate spring.
- the clamping element 28a and the input-side spring element generate the clamping force with which the S-tube 10 is clamped between the spectacle plate 38a and the output tube piece 17a. Due to the additional support of the S-tube 10a via the acoustics, the biasing force that generates the tensioning element 28a essentially acts between the guide rings 26a, 27a. The biasing force of the spring element, however, acts essentially on the sealing ring.
- the two biasing forces add up to the clamping force, which causes the connection between the spectacle plate 38 a and the input 11 a of the S-tube 10 a and the connection between the output 12 a of the S-tube 10 a and the output tube piece 17 a play, thus the connection to the spectacle plate 38a and the connection to the output tube piece 17a is sealed.
- the seal which is formed by the two corresponding bearing surfaces 15, a 16a, is open in the direction of an environment. Radially outwardly of the bearing 13a formed by the two bearing surfaces 15a, 16a, a clearance 42a left open between the S-tube 10a and the outlet tube 17a opens toward the environment. Thick material, which is pressed between the two bearing surfaces 15a, 16a and overcomes the seal, enters this space 42a.
- the material supply container 31 a surrounds the bearing 13 a partially. Relative to a direction of gravity along which a natural gravity acts on the horizontal orientation of the slurry pump, the material supply container 31 a is arranged below the bearing 13 a. The free space 42 a is opened in the direction of the material feed container 31 a. Thick material, which passes through the bearing 13 a, thereby falls into the material feed container 31 a.
- FIGS. 4 to 16 twelve further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the other embodiments, in particular the FIGS. 1 to 3 , can be referenced. To distinguish the embodiments, the letter a in the reference numerals of the embodiment in the FIGS. 1 to 3 by the letters b to n in the reference numerals of the embodiments of the FIGS. 4 to 16 replaced. With regard to identically designated components, in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the other embodiments, in particular the FIGS. 1 to 3 , to get expelled.
- FIG. 4 shows a further embodiment of a Dickstoffpumpvoriques with an S-tube 10b and an output tube piece 17b.
- the S-tube 10b has a tube member 29b and a guide ring 26b formed integrally with the tube member 29b, which unlike the embodiment in FIGS. 1 to 3 a groove and an inserted into the groove guide member 43b has.
- the tubular element 29b and the guide element 43b together form a bearing surface 15b assigned to the S-tube 10b.
- the output pipe piece 17b includes a pipe member 30b and a guide ring 27b, which are formed integrally with each other unlike the previous embodiment.
- the guide ring 27b of the output tube piece 17b forms a bearing surface 16b associated with the output tube piece 17b.
- the bearing surfaces 15b, 16b are also oriented differently.
- the guide member 43b of the S pipe 10b may be made of a material other than the pipe member 29b and the guide ring 26b of the S pipe 10a and / or the guide ring 27b of the output pipe piece 17b.
- the groove into which the guide member 43b is inserted fixes the guide member 43b in the radial direction, whereby the guide member 43b of the S-tube 10b may be made of a softer material than the tube member 29b of the S-tube 10b and / or the guide ring 27b of the output pipe piece 17b.
- a sealing effect can be improved.
- the S-tube 10b may also have a guide ring 26b formed separately from the tube element 29b with an additional guide element 43b.
- FIG. 5 shows an embodiment of a thick matter pumping device with an S-tube 10c and an output tube piece 17c.
- the S-tube 10c has a tube member 29c which simultaneously forms a guide ring 26c having a bearing surface 15c for forming a bearing 13c for supporting the S-tube 10c with respect to the outlet tube 17c.
- the bearing surface 15c associated with the S-tube 10c is thus designed directly through the tubular element 29c in this exemplary embodiment.
- the output tube piece 17c has a guide ring 27c axially displaceable along a bearing axis, which has a groove and a guide element 43c inserted into the groove.
- the guide member 43c may, according to the previous embodiment, be made of a different material than the guide ring 27c. In particular, it is conceivable to produce the guide element 43c from a plastic or another non-metallic material.
- FIG. 6 shows an embodiment of a thick matter pumping device with an S-tube 10 d and an output tube piece 17 d, which substantially the embodiment in the FIGS. 1 to 3 like.
- the S-tube 10d and the output tube piece 17d each have a tube member 29d, 30d and a guide ring 26d, 27d.
- the guide rings 26d, 27d which form a bearing 13d for supporting the S-tube 10d in relation to the starting tube piece 17d, have mutually facing bearing surfaces 15d, 16d for supporting the pivotable S-tube 10d with respect to the frame-fixed output tube piece 17d.
- the S-tube 10d has a connecting element 44d, which connects the guide ring 26d to the tube element 30d.
- the connecting element 44d is designed in the form of a bolt, which is in particular provided to transmit forces directed along a bearing axis.
- the connecting element 44d can also be designed as a securing ring.
- the guide ring 27d of the output pipe section 17d has a contact contour for the clamping element 28d, which is provided to the clamping element 28d in the radial direction to back up.
- the clamping element 28d is designed in the form of a ring. The contact contour engages in the assembled state in the clamping element 28d and secures the clamping element 28d radially inside.
- the guide ring 27d of the output tube piece 17d has a recess which is introduced into the bearing surface 16d and which is provided for a guide element 43d.
- the guide element 43d which forms a part of the bearing surface 16d and thus also the sealing surface in the assembled state, can be made of different materials. Depending on the material, the guide element 43d forms a sealing element, which is intended to increase a sealing effect of the bearing surfaces 15d, 16d, and / or a bearing element, which is intended to reduce a friction between the bearing surfaces 15d, 16d.
- the guide element 43d can also form a wear element.
- FIG. 7 shows an embodiment of a thick matter pumping device with an S-tube 10e and an output tube piece 17e, which substantially the embodiment in FIG. 6 like.
- the S-tube 10e and the output tube piece 17e each have a tube member 29e, 30e and a guide ring 26e, 27e.
- the guide rings 26e, 27e which form a bearing 13e for supporting the S-tube 10e with respect to the starting tube piece 17e, have mutually facing bearing surfaces 15e, 16e for supporting the pivotable S-tube 10e with respect to the frame-fixed output tube piece 17e on.
- a material feed container 31 e shown, with which the output pipe piece 17e is firmly connected.
- the material supply container 31 e encloses the bearing 13e partially.
- the output tube piece 17e of the thick matter pumping device has a spacer and / or locking ring 46e.
- the spacer and / or locking ring 46e is provided to axially fix a clamping element 28e.
- a minimum distance between the guide ring 27e and the pipe element 29e of the output pipe section 17e can be defined.
- the spacer and / or locking ring 46e is designed as a sheet metal element, for the different strengths can be provided.
- FIG. 8 shows an embodiment of a thick matter pumping device with an S-tube 10f and an output tube piece 17f, which basically the embodiment of the FIGS. 1 to 3 like.
- the S-tube 10f and the output tube piece 17f each have a tube member 29f, 30f and a guide ring 26f, 27f.
- the guide rings 26f, 27f which form a bearing 13f for supporting the S-tube 10f with respect to the output tube piece 17f, have mutually facing bearing surfaces 15f, 16f for supporting the pivotal S-tube 10f opposite to the frame-fixed output tube piece 17f.
- the bearing surfaces 15f, 16f are designed as curved surfaces.
- the bearing surface 15f associated with the S-tube 10f has surface normal including an angle of 0 degrees to 90 degrees with a bearing axis.
- the angle that the surface normal at a point of the bearing surface 15f has depends on a radial distance of the point from the bearing surface 15f. The greater the distance between the bearing axis and the point of the bearing surface 15f, the greater the angle between the surface normal and the bearing axis.
- the bearing surface 15f has a constant curvature in the illustrated embodiment over its entire radial extent. In the radial direction, the bearing surface 15f is designed in the form of a circular segment.
- the bearing surface 16f assigned to the starting pipe piece 17f has surface normal, which enclose an angle of 180 degrees to 270 degrees with the bearing axis.
- the angle that the surface normal has at a point on the bearing surface 16f also depends on a radial distance of the point from the bearing surface 16f. The greater the distance between the bearing axis and the point of the bearing surface 16f, the greater the angle between the surface normal and the bearing axis.
- the surface normals of the bearing surfaces 15f, 16f are always oriented in antiparallel. The bearing surface 15f, 16f are therefore always flat on each other.
- FIG. 9 shows an embodiment of a Dickstoffpumpvoriques with an S-tube 10g and an output tube piece 17g, which is substantially similar to the embodiment in FIG. 8 is executed.
- the S-tube 10g and the output tube piece 17g each have a tube member 29g, 30g and a guide ring 26g, 27g.
- the guide rings 26g, 27g which form a bearing 13g for supporting the S-tube 10g with respect to the starting tube piece 17g, have mutually facing bearing surfaces 15g, 16g for supporting the pivotable S-tube 10g with respect to the frame-fixed output tube piece 17g.
- the bearing surfaces 15g, 16g are designed as curved surfaces.
- the S-tube 10g has an additional connecting element 44g, which may be in the form of a securing bolt or securing ring.
- the connecting element 44g is intended to produce a non-positive and / or positive connection between the tubular element 29g and the guide ring 26g.
- the output pipe piece 17g also has an additional connection member 45g provided to connect the guide ring 27g of the output pipe piece 17g to the pipe member 30g of the output pipe piece 17g.
- the connecting element 45g which may be designed in the form of a bolt or ring, is provided to connect the guide ring 27g and the tubular element 30g axially displaceable relative to one another.
- a sealing ring 40g, 41g is provided in each case.
- FIG. 10 shows another embodiment of a thick matter pumping device with an S-tube 10h and an output tube piece 17h.
- the S-tube 10h and the output tube piece 17h each have a tube member 29h, 30h and a guide ring 26h, 27h.
- the guide rings 26h, 27h which form a bearing 13h for supporting the S-tube 10h with respect to the starting tube piece 17h, have mutually facing bearing surfaces 15h, 16 for supporting the pivotable S-tube 10h with respect to the frame-fixed output tube piece 17h.
- the S-pipe 10h associated bearing surface 15h which is completely formed by the integrally formed guide ring 26h of the S-tube 10h, is subdivided into subregions 20h, 21h, 22h, in which it has alternately a radial component and an axial component.
- the bearing surface 15h has surface normal, which are oriented parallel to the bearing axis.
- the bearing surface 15h has surface normal, which are oriented perpendicular to the bearing axis.
- the bearing surface 15h In the radially outer portion 22h, the bearing surface 15h has surface normal, which are again oriented parallel to the bearing axis.
- the bearing surface 15h is facing outwardly with respect to the bearing axis.
- bearing surface 16h Corresponding to the output pipe piece 17h associated bearing surface 16h, which is completely formed by the integrally formed guide ring 27h of the output pipe section 17h, also divided into three sub-areas 23h, 24h, 25h, in which it has alternately a radial component and an axial component.
- the bearing surface 16h In the radially inner subregion 24h, the bearing surface 16h has surface normal, which are oriented antiparallel to the bearing axis. In the adjacent central portion 24h, the bearing surface 16h surface normal, which are oriented perpendicular to the bearing axis and radially inward. In the radially outer portion 25h, the bearing surface 16h has surface normal, which are again oriented in antiparallel to the bearing axis.
- FIG. 11 shows an embodiment of a thick matter pumping device with an S-tube 10i and an output tube piece 17i, which substantially the embodiment in FIG. 10 like.
- the S-tube 10i and the output tube piece 17i each have a tube member 29i, 30i and a guide ring 26i, 27i.
- the guide rings 26i, 27i the form a bearing 13i for supporting the S-tube 10i relative to the output tube piece 17i, have facing bearing surfaces 15i, 16i for supporting the pivotable S-tube 10i relative to the frame-fixed output tube piece 17i.
- the bearing surfaces 15i, 16i are each subdivided into subregions 20i, 23i in which they have only one axial component, and subregions 21i, 24i in which they have only one radial component.
- the S-pipe 10i associated bearing surface 15i is partially formed by the tubular element 29i and partially by the guide ring 26i.
- the portion 20i of the bearing surface 15i in which the bearing surface 15i has only an axial component, is partially formed by the tube member 29i and partially by the guide ring 26i.
- the portion 21 i of the bearing surface 15 i in which the bearing surface 15 i has only a radial component, is completely formed by the guide ring 26 i.
- the guide ring 26i is thereby provided for receiving radially acting forces.
- a sealing effect is provided by the tube member 29i and the guide ring 26i of the S-tube 10i.
- FIG. 12 shows a further embodiment of a Dickstoffpumpvortechnisch with an S-tube 10j and a Treatrohr Salt 17j, which substantially the embodiment in FIG. 10 like.
- the S pipe 10j and the output pipe piece 17j each have a pipe member 29j, 30j and a guide ring 26j, 27j.
- the guide rings 26j, 27j have mutually facing planar bearing surfaces 15j, 16j.
- the thick matter pumping apparatus has a bearing 13j which supports the S pipe 10j and the output pipe piece 17j against each other.
- the guide rings 26j, 27j on the bearing surfaces 15j, 16j facing sides each have a groove 47j, 48j.
- the bearing 13j has a guide member 49j disposed within the grooves 47j, 48j.
- the guide member 49j is provided for receiving radially acting forces.
- the guide element 49j is designed as an additional wear element.
- the guide member 49j is formed as a steel ring. It is conceivable that the steel ring has slots and / or recesses.
- the bearing surfaces 15j, 16j, the grooves 47j, 48j and the guide member 49j together form the bearing 13j for supporting the pivotable S-tube 10j with respect to the frame-fixed output tube piece 17j.
- FIG. 13 another embodiment of the invention is shown.
- the embodiment essentially corresponds to the exemplary embodiment in FIG. 12 .
- a thick matter pumping device has an S-tube 10k and an outlet tube 17k.
- the S pipe 10k and the output pipe piece 17k have pipe members 29k, 30k and guide rings 26k, 27k.
- the guide rings 26k, 27k have mutually facing planar bearing surfaces 15k, 16k.
- the thick matter pumping device has a bearing 13k which supports the S-tube 10k and the output tube 17k against each other.
- the tube element 29k has four recesses 50k on a side facing the guide ring 26k.
- the recesses 50k are arranged mirror-symmetrically to each other.
- the recesses 50k are formed as a blind hole.
- the guide ring 26k has four through holes 51k.
- the passage openings 51 k are arranged congruent to the recesses 50 k.
- the guide ring 27k has a groove 48k on a side facing the guide ring 26k.
- the recesses 50k, the through holes 51k and the groove 48k are intended to receive four guide elements 49k.
- the guide elements 49k are designed as wear bolts.
- the guide ring 27k receives by means of the groove 48k radially acting forces from the pipe element 29k.
- the guide rings 26k, 27k, the bearing surfaces 15k, 16k, the groove 48k and the guide elements 49k form the bearing 13k, which serves to mount the pivotable S-tube 10k with respect to the frame-fixed output tube piece 17k.
- FIG. 14 A further embodiment according to the embodiment in FIG. 10 is in FIG. 14 shown. It is a Dickstoffpumpvortechnisch with an S-tube 10l and an output pipe section 17l shown. Guide rings 26l, 27l are arranged coaxially with each other. Level bearing surfaces 15l, 16l of the guide rings 26l, 27l are arranged opposite to each other.
- the S-tube 10l and the output tube piece 17l have an additional wear element 52l.
- the additional wear element 52l is attached to a tubular element 30l.
- the additional wear element 52l is welded to the tube element 30l.
- the additional wear element can also be used in any manner that appears appropriate to a person skilled in the art with the tube element be connected.
- the additional wear element 52l has a rectangular cross-section.
- the additional wear element 52l serves to receive radial force from the tube element 29l in one or more subregions.
- FIG. 15 shows an embodiment of a Dickstoffpumpvortechnische with an S-tube 10m and an output tube piece 17m, which is substantially similar to the embodiment in FIG. 10 is trained.
- the tube element 29m has a groove 53m on a side facing the guide ring 26m.
- the guide ring 26m forms a pin 54m on a side facing the tube element 29m. In an assembled state, the pin 54m engages in the groove 53m.
- the tube member 29m and the guide ring 26m are connected to each other by a pin joint.
- Level bearing surfaces 15m, 16m of the guide ring 26m and the guide ring 27m are arranged opposite to each other.
- the additional wear element 52 m is arranged on surfaces of the guide rings 26 m, 27 m and of the tubular element 30.
- the additional wear element 52m is partially disposed between the guide ring 27m and the tube member 30m.
- the additional wear element 52m has an L-shaped cross section with two legs, wherein only one of the legs is arranged between the guide ring 27m and the tube element 30m. The other leg is intended in particular to limit an insertion depth of the guide ring 27m into the tube element 30m.
- the additional wear element 52m is attached to the tube member 30m to receive radially acting forces of the tube member 29m in one or more portions.
- FIG. 16 shows an embodiment of a Dickstoffpumpvoriques with an S-tube 10n and an output tube piece 17n, which substantially the embodiment in FIG. 10 like.
- the S-tube 10n and the output tube piece 17n each have a tube member 29n, 30n and a guide ring 26n, 27n.
- the guide rings 26n, 27n which form a bearing 13n for supporting the S-tube 10n with respect to the output tube piece 17n, have mutually facing bearing surfaces 15n, 16n for supporting the pivotable S-tube 10n with respect to the frame-fixed output tube piece 17n.
- the S-tube 10n associated bearing surface 15n, partially formed by the tube member 29n and partially by the guide ring 26n.
- An additional wear element 52n is disposed on the tube member 30n.
- the additional wear element 52n is formed as a wear roller.
- the additional wear member 52n is rotatably supported by a bolt 55n connected to the pipe member 30n.
- the tube element 30n has four additional wear elements 52n.
- the additional wear elements 52n are intended to receive radially acting forces of the tube element 29n.
- the additional wear elements 52n may be attached to the tube member 30n in any manner deemed appropriate by one skilled in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013114009.2A DE102013114009A1 (de) | 2013-12-13 | 2013-12-13 | Dickstoffpumpvorrichtung, insbesondere für eine fahrbare Dickstoffpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2891798A1 true EP2891798A1 (fr) | 2015-07-08 |
EP2891798B1 EP2891798B1 (fr) | 2022-09-28 |
Family
ID=52272835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14197774.4A Active EP2891798B1 (fr) | 2013-12-13 | 2014-12-12 | Dispositif de pompage de liquides épais, en particulier pour une pompe à liquides épais mobile |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2891798B1 (fr) |
DE (1) | DE102013114009A1 (fr) |
ES (1) | ES2934176T3 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001594A1 (fr) * | 1979-02-01 | 1980-08-07 | K Schlecht | Pompe a deux cylindres, en particulier pour le pompage de liquides epais |
DE3009746A1 (de) * | 1980-03-14 | 1981-10-01 | Stetter Gmbh, 8940 Memmingen | Steuerschieber einer betonpumpe |
EP0052192A1 (fr) * | 1980-11-14 | 1982-05-26 | Stetter GmbH | Dispositif pour pompes à béton |
DE3347288A1 (de) * | 1983-12-28 | 1985-07-18 | Karl Dipl.-Ing. 7000 Stuttgart Schlecht | Zweizylinder-pumpe, insbesondere zur foerderung von dickstoffen |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2244085B1 (fr) * | 1973-09-17 | 1979-10-19 | Case Co J I |
-
2013
- 2013-12-13 DE DE102013114009.2A patent/DE102013114009A1/de active Pending
-
2014
- 2014-12-12 EP EP14197774.4A patent/EP2891798B1/fr active Active
- 2014-12-12 ES ES14197774T patent/ES2934176T3/es active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001594A1 (fr) * | 1979-02-01 | 1980-08-07 | K Schlecht | Pompe a deux cylindres, en particulier pour le pompage de liquides epais |
DE3009746A1 (de) * | 1980-03-14 | 1981-10-01 | Stetter Gmbh, 8940 Memmingen | Steuerschieber einer betonpumpe |
EP0052192A1 (fr) * | 1980-11-14 | 1982-05-26 | Stetter GmbH | Dispositif pour pompes à béton |
DE3347288A1 (de) * | 1983-12-28 | 1985-07-18 | Karl Dipl.-Ing. 7000 Stuttgart Schlecht | Zweizylinder-pumpe, insbesondere zur foerderung von dickstoffen |
Also Published As
Publication number | Publication date |
---|---|
DE102013114009A1 (de) | 2015-06-18 |
ES2934176T3 (es) | 2023-02-17 |
EP2891798B1 (fr) | 2022-09-28 |
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