EP0392149A2 - Installation pour la lubrification centrale sous pression d'un mélangeur de cône à vis sans fin - Google Patents

Installation pour la lubrification centrale sous pression d'un mélangeur de cône à vis sans fin Download PDF

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Publication number
EP0392149A2
EP0392149A2 EP90102455A EP90102455A EP0392149A2 EP 0392149 A2 EP0392149 A2 EP 0392149A2 EP 90102455 A EP90102455 A EP 90102455A EP 90102455 A EP90102455 A EP 90102455A EP 0392149 A2 EP0392149 A2 EP 0392149A2
Authority
EP
European Patent Office
Prior art keywords
universal joint
bore
shaft
face
pressure lubrication
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
EP90102455A
Other languages
German (de)
English (en)
Other versions
EP0392149B1 (fr
EP0392149A3 (fr
Inventor
Alfred Sen. Bolz
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0392149A2 publication Critical patent/EP0392149A2/fr
Publication of EP0392149A3 publication Critical patent/EP0392149A3/fr
Application granted granted Critical
Publication of EP0392149B1 publication Critical patent/EP0392149B1/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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • B01F27/953—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis using only helical stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • B01F35/4121—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft at the top and at the bottom of the receptacle, e.g. for performing a conical orbital movement about a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/352—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/353—Lubricating systems
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis

Definitions

  • This invention relates to a device for central pressure lubrication for a cone screw mixer, and in particular to a cone screw mixer with a rotary drive for the mixing screw arranged below the mixing container, which is otherwise constructed in accordance with the preamble of claim 1.
  • the mixing screw shaft is located outside the product area and below the bottom of the mixing container.
  • the mixing screw is preferably driven by means of a geared motor via a universal joint, which is exposed to particular loads during operation due to the mixing screw pivoting along the inner wall and in particular the mass of the screw and shaft plus any mixed material supported on the journals and bearings of the universal joint.
  • Such drives are therefore exposed to rapid wear without sufficient maintenance work that has to be carried out at very short intervals and in this case particularly concerns the lubrication of the spherical plain bearings.
  • This invention was therefore based on the object, in the case of cone screw mixers, to design the drive of the mixing screw arranged on the underside of the mixing container in such a way that adequate lubrication of the particularly loaded bearings during operation is ensured even over a longer period of time and, in connection therewith, the operating times to be guaranteed by the manufacturer are significant can be increased and adjusted to the guarantee level of other machines and devices.
  • central lubrications in various designs are known per se for complicated applications in machines and systems
  • the central pressure lubrication of the present invention is mainly based on cone screw mixers, the design of the universal joint drive with central lubricating oil guide also being accessible to other machines and devices can be.
  • the solution to the problem mentioned at the outset which is the basis of this invention, therefore provides that, for pressure lubrication of the joint bearings of the universal joint, the lower part of the universal joint flanged on the end of the motor drive shaft has an oil space fed by the lubricating oil system forms a recess on the output side of this molded-in, axially aligned, as a transmission part to the spherical bearings of the upper joint part, a concentric bore with a funnel-shaped extension opening out into a spherical socket on the end face towards the upper joint part and provided in the recess, which is provided as Ball socket formed end face spring-loaded against a connection element associated with this opposite the cross part of the universal joint in the form of a ball segment with a concentrically arranged in this and with the articulated bearings of the cross part via corresponding lubricating oil supplying these channels in communicating connection with the bore sealing, the front diameter of the funnel-shaped Extension in the region of the ball socket of the connecting piece is chosen such
  • an oil-resistant rubber sleeve Arranged around the universal joint is an oil-resistant rubber sleeve that encloses this and is formed like a bellows and has annular beads on the end faces, an upper, front bead using a retaining ring on the sealing bell that executes the pivoting movement of the mixing worm shaft and serves as the rotary joint sealing bell, as well as the upper joint part.
  • a lubricating oil supply to the joint bearings of the universal joint and to the other highly stressed bearings of the drive is created in a very simple manner, which in itself forms a lubricant circuit which runs from the lubricating oil supply system via the stationary housing flange to the rotating drive elements and on to the rotary and spherical bearings to be lubricated, and back to the supply system via the space enclosed by the oil-resistant rubber sleeve.
  • the shaft of the drive motor is supported on the housing flange so as to rotate vertically via an axial groove ball bearing, the housing flange-side, the lubricating oil supplying bore and the radial bore in the Drive shaft is arranged in one plane with this ball bearing, and the communicating connection takes place in the transition area from the stationary to the rotating part of the drive through the axial groove ball bearing.
  • the radii of the spherical segment-shaped connecting element of the universal joint and the end face of the connecting piece designed as a ball socket are identical and designed for the joint axis intersection of the universal joint, and the funnel-shaped extension the diameter of the bore penetrating this connecting piece along the longitudinal axis is adapted to that of the largest swivel angle of the bore of the connecting element assigned to the cross part in the entire swivel range while maintaining the full flow cross section.
  • the universal joint lower part flanged to the front side of the drive shaft is arched concentrically between the joint arms towards the cross part and forms an oil space above the drive shaft end side, in which the lubricating oil-supplying bore penetrating the shaft axially opens out, and in which the connecting piece spring-loaded in the socket concentrically in a socket or its bore is immersed.
  • the device for the central pressure lubrication usually consists of a lubricating oil reservoir 40 with a pump 42 preferably driven by the geared motor 41 of the mixing screw drive.
  • An intake line 43 leads from the reservoir 40 to the pump 42 and the flow line 28 leading from the pump 42 leads via a T-piece 44 connecting a safety circuit 46 to the pump to a connection bore 29 in the flange 24 of the drive housing 45.
  • a return line 27 connects the return bore 26 in the housing flange 24 with a reservoir 40.
  • a vent valve 47 is provided, which in the arrangement shown on the inlet side of the line of the Safety circuit is assigned.
  • the drive system of the cone screw mixer is shown in a sectional view rotated by 180 ° about the longitudinal axis in relation to FIG.
  • the mixing container 1 indicated schematically in this figure has a breakthrough arranged concentrically in the container bottom 3 for the sealing bell 30 which seals the product space 2 in a manner known per se from the mixing screw drive arranged on the underside.
  • the drive housing 45 attaches, the underside flange 24 of which rotatably supports the drive elements.
  • the block 41 shown in FIG. 1 contains a geared motor which is fastened to the drive housing flange 24 via an annular housing 48.
  • the drive shaft 5 is mounted in this housing 48 in a deep groove ball bearing 49, and in the housing flange 24 on an axial deep groove ball bearing 33 as well as in a cylindrical roller bearing 35.
  • the universal joint lower part 7 is flanged on the end face of the drive shaft 5, the joint arms 36 of which support the universal joint part 9 and the universal joint upper part 8 with the mixing worm shaft 4 so that they can rotate and pivot.
  • the lubricating oil is supplied under pressure from the supply system via the flow 28 to the flange-side bore 29 and, via the bore 29, reaches the roller bearing 35 on the one hand and the axial deep groove ball bearing 33 on the other hand Ball bearing 33 in the drive shaft 5, a radially inward bore 31 is provided, which merges into a longitudinally axially aligned and leading to the front side of the drive shaft 5 bore 32.
  • the lubricating oil flow is carried out from the stationary area in the form of the housing flange 24 to the rotating area of the mixing screw drive through the axial groove ball bearing 33 and thus arrives over the bores 31 and 32 to the universal joint flanged on the end face of the drive shaft 5.
  • This embodiment represents a further development compared to the basic embodiment, which is also in accordance with the invention, in which an annular groove is formed around the circumference of the drive shaft 5 in the same plane as the feed bore 29, from which the bores 31 and 32 lead to the end face of the drive shaft 5.
  • a connecting piece 12 is provided on the drive shaft end side according to the invention, which has an axially continuous bore 14 which communicates with the bore 32 which supplies the lubricating oil under pressure is in communicating connection.
  • This connecting piece 12 is on the end face in the form of a ball socket 13, and is acted upon in the direction of the cross part 9 of the universal joint by a spring 18.
  • the connecting piece 12 is concentric to the drive shaft 5 either in a correspondingly enlarged central bore 32 of the shaft 5 on the output side and with its end face penetrating a recess provided for this purpose in the flange-shaped base of the universal joint lower part 7, or alternatively in a preferred embodiment in a bushing 39 spring-loaded arranged concentrically in the flange of the universal joint lower part 7.
  • the flange of the lower part 7 has a curvature 37 in the center between the articulated arms 36, in the wall of which the bushing 39 is fixed concentrically to the shaft axis. This curvature 37 also forms an oil space 38 between the inside thereof and the end face of the drive shaft 5, into which the bore 32 supplying the lubricating oil opens.
  • a connecting element 19 Associated with the cross part 9 of the universal joint is a connecting element 19, which is designed in the form of a spherical segment with a radius 10 related to the intersection of the joint axes 11 and the counterpart of the one designed in the form of a ball socket 13 and the forms the same radius end face 16 of the spring-loaded connecting piece 12.
  • the connecting element 19 also has a central bore 20 which, on the one hand, is connected to the bore 14 of the connecting piece 12 by the contact pressure exerted by the spring 18 and thereby to the lubricating oil supply 28 and, on the other hand, is connected in the cross part 9 to distributor channels, which under Lubricating oil transferred to the cross part 9 via the connecting piece 12 and the connecting element 19 is distributed to the individual joint bearings of the universal joint.
  • This arrangement forms a space 21 which is completely sealed off from the outside, in which the lubricating oil discharged from the individual bearings can be collected cleanly and can flow through holes 50 within the oil space 21 to the return bore 26, from where it is returned to the supply system via the return 27 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Details Of Gearings (AREA)
  • Transmission Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP90102455A 1989-04-10 1990-02-08 Installation pour la lubrification centrale sous pression d'un mélangeur de cône à vis sans fin Expired - Lifetime EP0392149B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8904500U DE8904500U1 (de) 1989-04-10 1989-04-10 Einrichtung zur zentralen Druckschmierung für einen Konus-Schneckenmischer
DE8904500U 1989-04-10

Publications (3)

Publication Number Publication Date
EP0392149A2 true EP0392149A2 (fr) 1990-10-17
EP0392149A3 EP0392149A3 (fr) 1992-09-02
EP0392149B1 EP0392149B1 (fr) 1993-10-13

Family

ID=6838144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102455A Expired - Lifetime EP0392149B1 (fr) 1989-04-10 1990-02-08 Installation pour la lubrification centrale sous pression d'un mélangeur de cône à vis sans fin

Country Status (3)

Country Link
EP (1) EP0392149B1 (fr)
DE (2) DE8904500U1 (fr)
ES (1) ES2046548T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0517178A1 (fr) * 1991-06-06 1992-12-09 Helpmann Holding B.V. Sécheur et mélangeur conique avec bras orientable entraîné et dispositif d'étanchéité
RU2158628C1 (ru) * 1999-05-26 2000-11-10 Агафонов Юрий Михайлович Роторно-пульсационный аппарат агафонова

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720950A1 (de) * 1997-05-17 1998-11-19 Same Deutz Fahr Spa Schmiervorrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705461C (de) * 1938-02-13 1941-04-29 Auto Union A G Schmiervorrichtung fuer die Gelenke umlaufender gekapselter Hohlwellen
US2398944A (en) * 1942-07-21 1946-04-23 Blaw Knox Co Lubricated shaft bearing
DE902337C (de) * 1945-02-23 1954-01-21 Siemag Vertriebsgesellschaft M Schmiervorrichtung fuer Kupplungsspindeln, beispielsweise fuer Walzgerueste
GB868044A (en) * 1958-11-27 1961-05-17 Gelenkwellenbau Gmbh Improvements in and relating to the lubrication of universal joints
US3006168A (en) * 1960-02-17 1961-10-31 Dana Corp Self-lubricating universal joint
FR2248739A5 (en) * 1973-10-22 1975-05-16 Secmafer Sa Lubrication system for cardan joint - with sliding hollow connector inside the driven shaft to complete the circuit
NL7503175A (nl) * 1975-03-18 1976-09-21 Hoogovens Ijmuiden Bv Vloeistofdoorvoer door een machine-onderdeel.
DE7628766U1 (de) * 1976-09-15 1977-01-20 J. Engelsmann Ag, 6700 Ludwigshafen Stehender schneckenmischer
DE2725028C2 (de) * 1977-06-03 1985-07-25 Hartmann Kg, 4413 Beelen Mischgefäß, insbesondere für Flüssigkeiten
DE3245935A1 (de) * 1982-12-11 1984-06-14 Sen Alfred Bolz Konus-schneckenmischer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0517178A1 (fr) * 1991-06-06 1992-12-09 Helpmann Holding B.V. Sécheur et mélangeur conique avec bras orientable entraîné et dispositif d'étanchéité
RU2158628C1 (ru) * 1999-05-26 2000-11-10 Агафонов Юрий Михайлович Роторно-пульсационный аппарат агафонова

Also Published As

Publication number Publication date
ES2046548T3 (es) 1994-02-01
DE8904500U1 (de) 1990-05-10
EP0392149B1 (fr) 1993-10-13
EP0392149A3 (fr) 1992-09-02
DE59003047D1 (de) 1993-11-18

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