WO2005033507A1 - Sliding device for a viscous material pump, and wear strip therefor - Google Patents
Sliding device for a viscous material pump, and wear strip therefor Download PDFInfo
- Publication number
- WO2005033507A1 WO2005033507A1 PCT/EP2004/007404 EP2004007404W WO2005033507A1 WO 2005033507 A1 WO2005033507 A1 WO 2005033507A1 EP 2004007404 W EP2004007404 W EP 2004007404W WO 2005033507 A1 WO2005033507 A1 WO 2005033507A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sliding
- wear strip
- pressing surface
- pressure plate
- wear
- Prior art date
Links
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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
-
- 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
- F04B15/023—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 supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
-
- 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
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
- F04B7/0034—Piston machines or pumps characterised by having positively-driven valving 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 slide device for a pump with two push-pull delivery cylinders for conveying thick materials, which are fed to the pump via a material feed container, with a substantially C-shaped swivel tube which engages in the material feed container and which is at its upper end Connected via a pipe rotating connection to a delivery line and pivotable relative to it about the axis of the pipe rotating connection and can be connected at its other end alternately to the openings of the delivery cylinders, and that on the opposite side of the delivery cylinders of the material feed container with a pressure plate against one Wear bar arranged in the interior of the material feed container can be supported and slidably abuts during the pivoting process.
- the invention further relates to a wear strip for such a slide device.
- Slider devices of this type are particularly suitable because of their compact design for truck-mounted concrete pumps, in which the end of the swivel tube which protrudes beyond the rear wall of the material feed container forms a connection to a delivery line via an extension tube, which is connected to the on the the front part of the chassis is at rest.
- the parts of the slide device which are exposed to high wear and tear are easily accessible from the top of the material feed container and can therefore be easily replaced.
- the wear strips of the known slide devices of this type have an elongated, essentially rectangular outline.
- the wear strip is provided with an abrasion-resistant material layer on its broad side facing the interior of the material feed container.
- the object of the invention is to develop a slide device of the type specified at the outset and a wear strip therefor, which allow a uniform removal of the material layer exposed to wear and thus smooth operation.
- the wear strip has a sliding and pressing surface with an effective sliding length for the pressure plate corresponding to the swivel deflection of the swivel tube, a sliding width at its ends corresponding to the diameter of the pressure plate and one in its central region in each case has a sliding width that decreases towards the center.
- the wear strip has an effective sliding and pressing surface for the pressure plate with an elongated outline which is wider at its ends than in its central region.
- the sliding and pressing surface expediently has a concave constriction on both sides, initially having a constant sliding width from its effective ends over a sliding length of at least 1.5 times the diameter of the pressure plate.
- a preferred embodiment of the invention provides that the sliding width of the sliding and pressing surface is smaller in the central region than the pressure plate diameter, the sliding width in the middle of the wear strip preferably being smaller than 0.7 times the pressure plate diameter.
- An advantageous embodiment of the invention provides that fastening tabs or fastening lugs are formed on the ends of the wear strip, which are offset from the sliding and pressing surface by at least the thickness of the abrasion-resistant material layer arranged there.
- Figure 1 shows a section of a two-cylinder thick matter pump in a partially broken-open diagram.
- Fig. 2 is an exploded view of the swivel tube of the two-cylinder thick matter pump according to Fig. 1;
- 3a and b are a top view and a partially sectioned side view of the wear strip.
- the two-cylinder slurry pump shown in the drawing is primarily intended for use in truck-mounted concrete pumps. It essentially consists of two delivery cylinders 10 with delivery drives hydraulically driven in push-pull. piston 12, a material feed container 14 and a slide device 20 which can be actuated by a reversing mechanism 18 and which can be actuated by a reversing mechanism 18 with a C-shaped swivel tube 16 and which can be actuated by a reversing mechanism 18 connected, the openings 22 on the inside of the material feed container 14 being delimited by an eyeglass-shaped wear plate 26.
- the reversing mechanism 18 depending on the direction of movement of the delivery pistons 12 in the delivery cylinders 10.
- material is sucked out of the material feed container 14 in the direction of the arrow 32 through the free opening 22 into the relevant delivery cylinder 10, while material in the direction of the arrows 34, 36, via the other delivery piston 12.
- 38 is transported through the swivel tube 16 into a delivery line located behind the rear wall 24 of the material feed container 14.
- the swivel pipe 16 is connected via a flange 40 to an extension pipe 42, which in turn is connected via a pipe swivel 43 to the delivery line leading, for example, to a concrete placing boom.
- the flange 40 is detachably connected by means of two clamping screws 44 to the reversing lever 46 of the reversing mechanism 18, which has at its lower end two bearing points 48, which are designed as ball sockets and face opposite, for the connection of a spherical ball head 50 of each of the two drive cylinders 52 having.
- the drive cylinders 52 are mounted with a further ball head 54 in a bearing point 56 which is fixed to the delivery cylinder and is designed as a ball socket.
- the Swivel tube 16 exerts a force acting perpendicular to the rear wall 24 of the material feed container via an externally actuated adjusting screw 62 and a corresponding wear strip 82.
- the wear ring 28 is additionally pressed against the respective opening edge of the wear plate 26 via hydrostatic forces within the swivel tube 16.
- the lower arm 80 of the swivel tube 16 carries on its side facing the wear strip 82 a pressure plate 84 which bears against the sliding and pressing surface 86 of the wear strip 82 which points into the interior of the material feed container 14. As can be seen in particular from FIG.
- the effective sliding and contact surface 86 of the wear strip 82 has an elongated contour which is wider at its ends 88 than in its central region 90.
- the sliding and pressing surface 86 is formed by an abrasion-resistant material layer 100 which protrudes beyond the plate plane 92 in question.
- the outward-pointing edge 94 of the effective sliding and pressing surface 86 is curved in a circle, with a radius of curvature which corresponds approximately to the radius of the circular pressure plate 84. From the outer edge 94, the sliding and pressing surface 86 initially has a constant sliding width b e corresponding to the diameter of the pressure plate 84 in the area of the ends 88.
- the invention relates to a slide device for a pump with two counter-clockwise delivery cylinders for conveying thick materials with an essentially C-shaped curved pivot tube which engages in a material feed container and which in the lower area is supported by a pressure plate 84 against one Wear bar 82 arranged in the material feed container can be supported and slidably bears against it when the pivoting tube is pivoted.
- its effective sliding and pressing surface 86 for the pressure plate 84 has an elongated outline which is wider at the ends 88 than in FIG middle area is 90.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04740721A EP1664531B1 (en) | 2003-09-11 | 2004-07-07 | Pump having a sliding device for a viscous material pump, and wear strip therefor |
DE502004002211T DE502004002211D1 (en) | 2003-09-11 | 2004-07-07 | PUMP WITH A SLIDING DEVICE FOR A NITROGEN PUMP AND WELDING STRIP FOR THIS |
AT04740721T ATE414405T1 (en) | 2003-09-11 | 2004-07-07 | PUMP WITH A SLIDE DEVICE FOR A THICK MATERIAL PUMP AND WEAR STRIP FOR THIS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10342338.9 | 2003-09-11 | ||
DE10342338A DE10342338A1 (en) | 2003-09-11 | 2003-09-11 | Slider device for a slurry pump and wear strip therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005033507A1 true WO2005033507A1 (en) | 2005-04-14 |
Family
ID=34398725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/007404 WO2005033507A1 (en) | 2003-09-11 | 2004-07-07 | Sliding device for a viscous material pump, and wear strip therefor |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1664531B1 (en) |
KR (1) | KR20060119978A (en) |
CN (1) | CN100400865C (en) |
AT (1) | ATE414405T1 (en) |
DE (2) | DE10342338A1 (en) |
ES (1) | ES2276315T3 (en) |
WO (1) | WO2005033507A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2162406A1 (en) * | 1971-12-16 | 1973-06-28 | Putzmeister Interholding Gmbh | CONCRETE PUMP WITH SWIVEL PIPE VALVE |
DE2841514A1 (en) * | 1978-09-23 | 1980-04-24 | Italiana Forme Acciaio | Changeover swivel valve for twin-cylinder concrete pump - uses hydraulic cylinder for lifting from sealing contact with pump cylinder seat during changeover movement |
DE3045885A1 (en) * | 1980-12-05 | 1982-06-09 | Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen | Pivoted pipe distributor for concrete pump - has distributor of concave pipe section mounted in funnel base |
WO1998011346A1 (en) * | 1996-09-14 | 1998-03-19 | Putzmeister Aktiengesellschaft | Pump for thick substances |
US6443718B1 (en) * | 2000-02-14 | 2002-09-03 | Multiquip, Inc. | Shuttle valve for concrete pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2614895A1 (en) * | 1976-04-07 | 1977-10-20 | Schlecht Karl | Twin cylinder reciprocating concrete pump - has conical distance piece between swinging discharge pipe and cylinder wear ring |
CN1004093B (en) * | 1985-04-01 | 1989-05-03 | 格哈德·胡德尔迈尔 | Sealing device for concrete pump |
CN1033872C (en) * | 1993-06-30 | 1997-01-22 | 三菱重工业株式会社 | Apparatus for controlling mechanism for pressing S-shaped sluice valve of concrete pump |
DE19804863A1 (en) * | 1998-02-09 | 1999-08-12 | Putzmeister Ag | Slide device for a two-cylinder slurry pump |
-
2003
- 2003-09-11 DE DE10342338A patent/DE10342338A1/en not_active Withdrawn
-
2004
- 2004-07-07 DE DE502004002211T patent/DE502004002211D1/en not_active Expired - Fee Related
- 2004-07-07 KR KR1020067005064A patent/KR20060119978A/en not_active Application Discontinuation
- 2004-07-07 EP EP04740721A patent/EP1664531B1/en not_active Not-in-force
- 2004-07-07 CN CNB2004800261788A patent/CN100400865C/en not_active Expired - Fee Related
- 2004-07-07 WO PCT/EP2004/007404 patent/WO2005033507A1/en active IP Right Grant
- 2004-07-07 AT AT04740721T patent/ATE414405T1/en not_active IP Right Cessation
- 2004-07-07 ES ES04740721T patent/ES2276315T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2162406A1 (en) * | 1971-12-16 | 1973-06-28 | Putzmeister Interholding Gmbh | CONCRETE PUMP WITH SWIVEL PIPE VALVE |
DE2841514A1 (en) * | 1978-09-23 | 1980-04-24 | Italiana Forme Acciaio | Changeover swivel valve for twin-cylinder concrete pump - uses hydraulic cylinder for lifting from sealing contact with pump cylinder seat during changeover movement |
DE3045885A1 (en) * | 1980-12-05 | 1982-06-09 | Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen | Pivoted pipe distributor for concrete pump - has distributor of concave pipe section mounted in funnel base |
WO1998011346A1 (en) * | 1996-09-14 | 1998-03-19 | Putzmeister Aktiengesellschaft | Pump for thick substances |
US6443718B1 (en) * | 2000-02-14 | 2002-09-03 | Multiquip, Inc. | Shuttle valve for concrete pump |
Also Published As
Publication number | Publication date |
---|---|
EP1664531A1 (en) | 2006-06-07 |
ES2276315T3 (en) | 2007-06-16 |
ATE414405T1 (en) | 2006-12-15 |
CN1849451A (en) | 2006-10-18 |
DE10342338A1 (en) | 2005-05-25 |
KR20060119978A (en) | 2006-11-24 |
CN100400865C (en) | 2008-07-09 |
DE502004002211D1 (en) | 2007-01-11 |
EP1664531B1 (en) | 2006-11-29 |
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