EP0537482A1 - Cadre de support pour dispositif de remuage - Google Patents

Cadre de support pour dispositif de remuage Download PDF

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Publication number
EP0537482A1
EP0537482A1 EP92115630A EP92115630A EP0537482A1 EP 0537482 A1 EP0537482 A1 EP 0537482A1 EP 92115630 A EP92115630 A EP 92115630A EP 92115630 A EP92115630 A EP 92115630A EP 0537482 A1 EP0537482 A1 EP 0537482A1
Authority
EP
European Patent Office
Prior art keywords
support frame
frame according
sliding plates
guide tube
guide
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
Application number
EP92115630A
Other languages
German (de)
English (en)
Other versions
EP0537482B1 (fr
Inventor
Jochen Pretzschel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KSB AG
Original Assignee
KSB AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KSB AG filed Critical KSB AG
Publication of EP0537482A1 publication Critical patent/EP0537482A1/fr
Application granted granted Critical
Publication of EP0537482B1 publication Critical patent/EP0537482B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
    • B01F27/251—Vertical beam constructions therefor

Definitions

  • the invention relates to a support frame for a circulating device arranged in a basin with solids-laden liquid, which can be moved up and down with the aid of a lifting device arranged on the support frame on a guide tube provided in the basin with a rectangular, in particular square cross-section, being releasably attached to the inside of the support frame , are in constant contact with the outer surface of the guide tube, are used for guiding and linear movement.
  • Such a support frame is known from EP-A-0 107 406.
  • the parts used for guiding and linear movement are formed here by bolts which are arranged on the front and rear of the support frame and by narrow slides provided on the side.
  • the main load must be absorbed by the bolts in accordance with the forces generated when lowering and lifting the unit, but also during its work. Since there is only a line contact between the bolts and the guide tube, there is a relatively high surface pressure in the contact area of the bolts. As practice shows, this inevitably leads to wear on the bolt and guide tube. The main reason for this are the vibrations exerted by the running aggregate.
  • a certain remedy is to cover the bolts with a wear-resistant plastic.
  • the liquid surrounding the unit is loaded with hard particles, there is also increased wear on the guide tube.
  • the plastic sheathing of the bolt withstands the particles arriving in the area of the contact surfaces comparatively well, the metal surface of the guide tube is very heavily loaded due to the still high surface pressure.
  • Deposits formed on the guide tube during operation represent a further source of malfunctions and wear.
  • the bolts sliding on the guide tube can be forced to make a non-uniform or rattling movement by inhibiting deposits.
  • chatter marks appear on the front and rear of the guide tube. Since such chatter marks inhibit the movement of the bolts, they are themselves responsible for the creation of new and deeper chatter marks. Finally, alone or in combination with deposits, this can lead to the support frame becoming stuck on the guide tube.
  • a rolling guide also applies that it causes a high surface pressure due to the small contact surface with the guide tube. So increased wear and chatter marks can also be expected there. This is not surprising, since a rolling guide is more sensitive to wedge-shaped deposits, which may prevent them from being formed by deep rolling. even favored.
  • the invention has for its object to provide a support frame of the type mentioned, which has a high security against seizing and which causes little wear on its guides and the guide tube.
  • the object is achieved according to the invention in that the parts serving for guiding and linear movement are formed by sliding plates which rest on all sides of the guide tube and which consist of a slidable plastic with good wear resistance.
  • the invention returns to the sliding guide, but performs this guide on a much larger area. This results in a greatly reduced surface pressure compared to the previously known solutions, that is to say also significantly less wear and a reduced risk of jamming.
  • the sliding plates are easy to manufacture and replace. A material can be used for them, which is stored at the place of use of the circulating device anyway, for example for equipping slide edges.
  • the support frame according to the invention can be adapted even better to the conditions existing during its use with the help of the configurations mentioned in the subclaims.
  • two separately arranged guides can be provided at the upper and lower ends of the supporting frame.
  • An additional lateral guide can be placed between these two guides, for which purpose the supporting frame is to be provided with lateral openings for sliding plates to be attached there.
  • the screws countersunk and to provide emergency contact surfaces on the supporting frame at the height of a predetermined maximum wear of the sliding plates.
  • the emergency contact surfaces if they are arranged in the immediate vicinity of the sliding plates, can also be used as a wear indicator, since they make the remaining thickness of the sliding plates recognizable.
  • the openings used to fasten the sliding plates in the supporting frame can be designed as elongated holes in order to enable the sliding plates to be adjusted relative to the guide tube.
  • the sliding plate used for the rear guide can be designed and arranged differently. It can be arranged as a continuous part on a carrier connected to the two side parts of the support frame. But it can also be separated into two individual parts, each of which is arranged on a separate carrier connected to a side part.
  • the latter design has the advantage that horizontal fastening webs can be provided on the guide tube, along which the open guides can slide past.
  • the support frame can also be designed so that the lateral and rear guide of the support frame and the receiving of the corresponding sliding plates parts are designed as two angles, which are connected to the support frame via hinges. This enables improved accessibility and easier assembly and disassembly of the sliding plates.
  • the sliding plates themselves can be angular. An additional advantage is obtained when the angles are fastened to the body of the supporting frame by means of bolt plugs guided in pipe receptacles and the bolt plugs are combined so that they can be unlocked together from outside the basin by means of a pull cable.
  • Polyamide is recommended as the plastic material for the sliding plates.
  • PE-UHMW an ultra-high molecular weight polyethylene, is preferred as particularly wear-resistant.
  • the support frame has two side parts (1) which enclose a support arm (2) firmly connected to them.
  • the - here only partially shown - support arm (2) is used to hold a - not shown - circulation device.
  • guides are arranged which enclose a guide tube - also not shown - of square cross section.
  • the guides are each formed by a wall (3) welded between side parts (1), two supports (4) fastened to the side parts (1) and by sliding plates (5) which are located on the inside of the wall (3) and the supports ( 4) are attached.
  • the bracket (4) is held by screws (6), which are attached to the inside of the side parts (1).
  • the screws (6) of the carrier (4) can be adjusted within elongated holes (7) to adapt the guide play.
  • the fastening of the sliding plates (5) which consist of a plastic sliding material, serve as countersunk screws (8).
  • the amount of countersinking is chosen so that the heads of the screws (8) lie outside a maximum permitted abrasion of the sliding plates (5).
  • the maximum permissible abrasion is determined by bolts (9) serving as an emergency bearing, which are arranged above and below the front and rear sliding plates (5) which are most stressed by abrasion. Since the bolts (9) also make it possible to recognize the thickness of the sliding plates (5) that are still present, they also serve as a comparative measure for an abrasion indicator.
  • the support frame also has a further lateral guide arranged approximately in the middle.
  • openings (10) are provided in the side parts (1), into which slide plates (11), which are arranged on fastening supports (12), are to be inserted.
  • the sliding plates (11) are of basically the same type as the sliding plates (5). Between the opening (10) and the slide plate (11) or the carrier (12) there are free spaces (14) through which deposits scraped off by the slide plate (11) can escape.
  • the guide is adjusted using spacers (13).
  • the additional lateral guides allow adjustment, but since they are not a supporting part, they are not a functionally necessary part of the guide. It is also not necessary in all cases to provide two vertically separate guides. In the case of vertically shorter, less loaded supporting frames, a single guide of the type according to the invention is sufficient.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Forging (AREA)
EP92115630A 1991-09-24 1992-09-12 Cadre de support pour dispositif de remuage Expired - Lifetime EP0537482B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131691 1991-09-24
DE4131691A DE4131691A1 (de) 1991-09-24 1991-09-24 Tragrahmen fuer eine umwaelzeinrichtung

Publications (2)

Publication Number Publication Date
EP0537482A1 true EP0537482A1 (fr) 1993-04-21
EP0537482B1 EP0537482B1 (fr) 1996-04-17

Family

ID=6441313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115630A Expired - Lifetime EP0537482B1 (fr) 1991-09-24 1992-09-12 Cadre de support pour dispositif de remuage

Country Status (3)

Country Link
EP (1) EP0537482B1 (fr)
AT (1) ATE136810T1 (fr)
DE (2) DE4131691A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241782A1 (de) * 1992-12-11 1994-06-16 Klein Schanzlin & Becker Ag An einer Führungseinrichtung absenkbare Umwälzeinrichtung
DE10114255A1 (de) * 2001-03-22 2002-10-02 Marcus Bednarsch Aggregateeinheit für Kleinkläranlagen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1325961A (fr) * 1962-05-17 1963-05-03 élimination des jeux des tubes de normes courantes destinés à coulisser les uns dans les autres
US4671872A (en) * 1986-03-18 1987-06-09 Air-O-Lator Corporation Aerator mast with azimuth lock and bottom stop
EP0259586A1 (fr) * 1986-09-10 1988-03-16 Dornier Gmbh Verrouillage de déploiement pour dispositif à longueur variable téléscopiquement
DE4015478C1 (fr) * 1990-05-14 1991-09-12 Abs Pumpen Ag, 5204 Lohmar, De

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950058A1 (de) * 1979-12-13 1981-06-19 Wilhelm 8951 Oberthingau Grotz Ruehrgeraet fuer tiefe jauchegruben u.dgl.
DE2950075A1 (de) * 1979-12-13 1981-06-19 Wilhelm 8951 Oberthingau Grotz Ruehrgeraet
US4464259A (en) * 1982-09-30 1984-08-07 Air-O-Lator Corporation Hydraulic horizontal mixer
DE3345643A1 (de) * 1983-12-16 1985-06-27 Moser, Barbara, 8152 Feldkirchen-Westerham Vorrichtung zum aufbereiten von vorzugsweise in behaeltern befindlichen fluessigkeiten, insbesondere von guelle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1325961A (fr) * 1962-05-17 1963-05-03 élimination des jeux des tubes de normes courantes destinés à coulisser les uns dans les autres
US4671872A (en) * 1986-03-18 1987-06-09 Air-O-Lator Corporation Aerator mast with azimuth lock and bottom stop
EP0259586A1 (fr) * 1986-09-10 1988-03-16 Dornier Gmbh Verrouillage de déploiement pour dispositif à longueur variable téléscopiquement
DE4015478C1 (fr) * 1990-05-14 1991-09-12 Abs Pumpen Ag, 5204 Lohmar, De

Also Published As

Publication number Publication date
ATE136810T1 (de) 1996-05-15
DE4131691A1 (de) 1993-03-25
DE59206024D1 (de) 1996-05-23
EP0537482B1 (fr) 1996-04-17

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