EP0351666A1 - Vertikal-Rühr- und/oder Knetmaschine mit drehbar gelagertem Getriebegehäuse - Google Patents

Vertikal-Rühr- und/oder Knetmaschine mit drehbar gelagertem Getriebegehäuse Download PDF

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Publication number
EP0351666A1
EP0351666A1 EP89112428A EP89112428A EP0351666A1 EP 0351666 A1 EP0351666 A1 EP 0351666A1 EP 89112428 A EP89112428 A EP 89112428A EP 89112428 A EP89112428 A EP 89112428A EP 0351666 A1 EP0351666 A1 EP 0351666A1
Authority
EP
European Patent Office
Prior art keywords
housing
machine
lifting
gear
inner housing
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.)
Withdrawn
Application number
EP89112428A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rene Stiegelmann
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.)
Ika-Maschinenbau Janke & Kunkel & Co KG GmbH
Original Assignee
Ika-Maschinenbau Janke & Kunkel & Co KG GmbH
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 Ika-Maschinenbau Janke & Kunkel & Co KG GmbH filed Critical Ika-Maschinenbau Janke & Kunkel & Co KG GmbH
Publication of EP0351666A1 publication Critical patent/EP0351666A1/de
Withdrawn legal-status Critical Current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
    • B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • 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
    • B01F35/10—Maintenance of mixers
    • 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
    • B01F35/165—Making mixers or parts thereof

Definitions

  • the invention relates to a vertical stirring and / or kneading machine with a gear housing rotatably mounted in a machine housing, in which at least one stirring and / or kneading tool rotating in a container and rotatable about its own axis is mounted, the gear housing housing the machine housing is removable.
  • Such known vertical stirring and / or kneading machines have in their machine housing a rotatably mounted gear housing, which in turn forms the web of a planetary gear arranged in its interior.
  • a ring gear arranged on the outside of the gear housing meshes with the output gear of a drive motor. Due to the rotation of the gearbox caused by the drive motor, the tools mounted with their shafts parallel but eccentrically to the axis of the gearbox in the gearbox are rotated in the container and possibly around the central and coaxial to the axis of the housing Tool offset.
  • the planetary gear which may also have two planetary stages, the driving force of the drive motor acting on the gear housing is also used for the self-rotation of the tools.
  • the inherent speeds of the stirring and / or kneading tools are coordinated so that the blades of the tools intersect in their enveloping circles, but do not touch.
  • the machine housing and the container are usually kept at a distance above the machine base in the position of use of the machine, also referred to here briefly as “vertical kneading machine", so that the container containing the product to be treated after the mixing process, for example, only has to be lowered and removed from the kneading machine.
  • the tooth flank backlash must not exceed a predetermined value if contact between the tools intersecting in the enveloping circles of their blades or with the container wall is to be reliably avoided in the container.
  • the horizontally divisible gear housing creates two housing parts, of which only one, namely the lower and / or inner housing part, has the tool shaft (s) with all their drive wheels, bearings, etc.
  • the upper and / or outer housing part has practically no gear parts and is correspondingly light.
  • the long tool shafts are also mounted in the lower and / or inner housing part, the upper and / or outer housing part of the gear housing of the vertical kneading machine according to the invention can be lifted off with a hoist with a comparatively low load capacity and hook height.
  • the transmission housing consists essentially of an outer housing and an inner housing, that the inner housing is arranged at least with its upper area facing away from the base area in the outer housing and releasably connected to it, and in that relative to the outer housing the tool shaft (s) of the tool (s) is (are) supported by this inner housing, which can be removed at the bottom.
  • This version of the transmission housing can be made particularly compact, even if the driving force of the drive motor acts on the outer housing and only the inner housing has the tool shaft (s) with all their drive wheels, bearings and the like.
  • the outer housing and the inner housing form an at least largely double-walled gear housing in the region of the inner housing covered by the outer housing, and if the viewing openings are provided on the inner housing in this region.
  • the viewing openings arranged in this area on the circumferential surface and on the end face of the inner housing facing away from the standing surface are covered by the outer housing in the use position of the kneading machine according to the invention.
  • a labyrinth seal is provided between the outer housing and the machine housing for sealing the drive area of the mixing and / or kneading machine from its product area, and if for this purpose the outer housing preferably has an annular groove on its end face facing the product area, into which a groove connected to the machine housing is provided Engages web.
  • the outer housing is approximately cup-shaped in cross section and the inner housing arranged at least in regions is approximately sleeve-shaped.
  • the inner housing is detachably connected to the end face of the outer housing which faces away from the base surface by means of screws or the like, its screw head or the like from above, that is to say from the end face which faces away from the base surface the outer housing is operable.
  • the end face of the machine housing facing away from the base surface is expediently designed as a removable cover.
  • the simple and time-saving inspection and inspection of the gear parts located in the gear housing is favors if the inner housing is designed to be open on its end face facing away from the standing surface and further viewing openings are preferably arranged in the area of its peripheral surface which can be covered by the outer housing.
  • the open design of the end face of the inner housing means that the shafts and at least some of the gears connected to them in a rotationally fixed manner are easily accessible. Since further viewing openings arranged on the circumferential surface of the inner housing can be covered by the outer housing in the use position of the transmission housing, the penetration of dirt or product particles into the area of bearings and gearwheels of the transmission is made even more difficult and prevented.
  • an advantageous embodiment according to the invention provides that the edge area of the outer casing facing the product area and the area of the inner casing adjoining it seal by positive locking.
  • a further development according to the invention provides that the inner housing has an annular flange on which the end face of the outer housing facing the product area is seated in the use position and which preferably projects outward to the groove of the labyrinth seal arranged in the end face of the outer housing.
  • a sealing ring can be provided on the flange surface of the ring flange which acts on the end face of the outer housing.
  • a further development of its own protection worthy of protection in which the machine housing and the container in the use position of the mixer and / or kneading machine is held at a distance above the machine base, provides that the vertical mixer and / or kneading machine has a lifting device for Lowering and raising of the lower part of the gearbox housing or the inner housing.
  • the distance of the machine housing from the standing surface which is otherwise provided for removing or replacing the container, is also used to remove the lower housing part or the gear housing.
  • the lower part of the housing or the inner housing can be lowered using the lifting device in a space-saving manner and with little time and effort down to the footprint, at the same time exposing the viewing openings, which provide an insight into the gearbox and a control allow, for example, the backlash and backlash.
  • the lifting device consists essentially of a lifting carriage which can preferably be raised and lowered via a hydraulic cylinder in each case and a supporting frame which can be placed on the lifting carriage and supports the inner housing in the use position of the lifting device. While the inner housing is received by the support frame in the use position of the lifting device, it can be together with the Lower or raise the support frame over the lifting slides.
  • the kneading machine according to the invention has a lifting carriage on each of two opposite sides, if each of the lifting carriages is movably guided on two vertical guide columns and its hydraulic cylinder is preferably arranged between the two guide columns, and if the hydraulic cylinders of both lifting carriages are controlled synchronously.
  • the support frame has a frame, preferably a chassis, possibly a driven chassis, and if the lifting carriages up to can be lowered under the support frame. If the frame is designed as a carriage, the inner housing can be moved easily and without further lifting operations from the area of the kneading machine according to the invention.
  • the support frame expediently has a support ring or preferably two mutually opposite support surfaces on which the ring flange arranged on the outer peripheral surface of the inner housing rests with its flange surface facing the standing surface in the use position of the lifting device.
  • a particularly advantageous further development according to the invention provides that a total of at least three upward-pointing centering sleeves are provided on the support surfaces, which bear against the peripheral surface of the ring flange resting on the support surfaces and position the inner housing between the support surfaces. By means of these centering sleeves, the inner housing can be placed on the Only support surfaces of the support frame in a defined position.
  • each of the two lifting carriages preferably has two upward-pointing centering pins which engage in the centering holes of the support frame in the position of use of the lifting device, the inner housing is centered on the support frame and this in turn is centered on the lifting carriage .
  • the two housing parts of the gear housing are automatically assembled in the correct position without further alignment of these parts with one another being necessary.
  • the risk of damaging the labyrinth seal arranged on the outer housing, for example when installing the inner housing is considerably reduced, even if the installation is not carried out by experts.
  • the lifting device also serves to lower and raise the container, and if the container preferably has centering holes on an annular and / or fastening flange for engaging the centering mandrels of the lifting carriages.
  • the container preferably has centering holes on an annular and / or fastening flange for engaging the centering mandrels of the lifting carriages.
  • An embodiment according to the invention which has its own worthy of protection, provides that a cover lifting device is provided for lifting and placing the cover which can be removed from the machine housing.
  • a cover lifting device is provided for lifting and placing the cover which can be removed from the machine housing.
  • the machine housing can be opened easily and quickly to attach the screw heads to the outer housing Screws connecting the inner housing.
  • Fig. 1 shows a generally designated 1 vertical mixer and kneading machine, which is also referred to here briefly as "kneading machine 1".
  • the kneading machine 1 has in a machine housing 2 a rotatably mounted gear housing 3, which serves as a web of a planetary gear 4 arranged in the rest of the gear housing.
  • three tools 5 are rotated about their own axis, the tool shafts 6 of which are arranged approximately parallel to the axis of rotation of the gear housing 3.
  • the tool shaft 6a of the centrally arranged tool 5a is mounted approximately coaxially to the axis of rotation of the gear housing 3, the tool shafts 6b of the two outer tools 5b are arranged eccentrically in the gear housing 3. Due to the eccentric arrangement of the tool shafts 6b, the two outer tools 5b rotating about their own axis additionally run around the centrally arranged tool 5a in a container 7 containing the product to be mixed.
  • the two outer tools 5b on their tool shafts 6b each have a planet gear 10 connected to them in a rotationally fixed manner, which meshes with a fixed sun gear 11.
  • a further planet gear 12 of the outer tools 5b meshes with a sun gear 13, which is connected in a rotationally fixed manner to the tool shaft 6a of the centrally arranged tool 5a and which together form a second planetary stage 14.
  • this second planetary stage 14 the self-rotation of the two outer tools 5b is also transmitted to the centrally arranged tool 5a.
  • the reduction in the second planetary stage 14, i. H. the ratio of the natural speeds of the outer tools 5b to the natural speed of the centrally arranged tool 5a is selected such that the tools 5 cutting in the enveloping circles of their blades 8 cannot touch each other.
  • the gear 4 of the kneading machine 1 must also be subjected to regular inspection, inspection and, if necessary, repair and overhaul at very short intervals, since mixed material has penetrated into the gear housing 3 and also into the area of bearings and gear wheels could, which is particularly dangerous even with very small amounts of explosive material, for example.
  • All dynamic and static seals located in the transmission housing 3 must also be checked for leaks and the bearing play and the tooth flank play of the gear wheels must be checked.
  • the tooth flank backlash of the gear wheels 12, 13 of the second planetary stage 14 must not exceed a predetermined value if contact between the tools 5 intersecting in the enveloping circles of their blades or with the container wall is to be avoided in the container.
  • the transmission housing 3 is divided horizontally according to the invention and essentially consists of an outer housing 15 and an inner housing 16.
  • the inner housing 16 with its the The end face of the kneading machine 1 is arranged in the upper area facing away from the outer housing 15 and is encased by the latter.
  • the outer housing 15 and the inner housing 16 form an at least largely double-walled gear housing 3 in the region of the inner housing 16 covered by the outer housing 15.
  • the tool shafts 6 of the tools 5 with all their drive wheels 10, 11, 12 and 13 are only arranged in the inner housing 16, which can be removed from the outer housing 15 and can be removed from the machine housing 2 downwards.
  • the inner housing 16 from the machine housing 2 are in the From the outer housing 15 coverable area of its peripheral surface, exposed in Fig. 1 exposed openings through which, for example, the bearing or tooth flank play of the gears of the transmission 4 can be examined easily and in a time-saving manner.
  • Fig. 2 shows that the machine housing 2 and the container 7 in the use position of the kneading machine 1 is held at a distance above the machine footprint. Due to this distance of the machine housing 2 from the machine standing surface, the container 7 can easily be removed from the kneading machine 1, emptied or exchanged. From Fig. 2 it is clear that in the kneading machine 1 according to the invention, this distance is also used for the expansion of the inner housing 16 and the tool shafts 6 with all their drive wheels. In contrast to a gear unit which is to be installed in the kneading machine from above, no lifting device with a high load capacity or hook height is required in the kneading machine according to the invention. The installation and removal of the gear 4 from the kneading machine 1 can therefore be carried out comparatively easily, quickly and in a space-saving manner.
  • the outer housing 15 has a flange 17 which is clearly visible in FIG. 1 and which rests on a ring gear 19 which is rotatably mounted in the machine housing 2 and meshes with an output gear 18.
  • the screws 21 which connect the outer housing 15 to the ring gear 19 and are only shown in broken lines in FIG. 1 can be loosened and the outer housing 15 can be removed from the machine housing 2.
  • a lid lifting device 22 is provided for lifting and placing the lid 20 on the kneading machine according to the invention.
  • This cover lifting device 22 consists essentially of two telescopically interlocking sleeves 23, one of which is fastened to the cover opening 24 of the machine housing 2 and the other is connected to the cover 20 via a support arm 25.
  • the sleeves 23 of the cover lifting device 22 have in their interior a hydraulic cylinder, not visible here, which is arranged in the axis 26 of the sleeves 23 shown in phantom in FIG. 2. As shown in FIG. 2, after the cover 20 is lifted off, it can be simply and easily pivoted to the side.
  • Fig. 1 it can be seen that the approximately sleeve-shaped inner housing is connected to the end face 27 of the outer housing 15 facing away from the base by screws 28, the screw head of which can be operated from above, ie from the end face 27 of the outer housing 15.
  • the inner housing 16 can be lowered using a lifting device 29.
  • This lifting device 29 consists essentially of two lifting carriages 30 arranged on two mutually opposite sides, and a support frame 31 which can be placed on the lifting carriage 30 and supports the inner housing 16 in the use position of the lifting device 29.
  • the lifting carriages 30 are each vertically arranged between two kalen guide columns for the lifting slide 30 arranged hydraulic cylinders can be raised and lowered.
  • the guide columns and the two hydraulic cylinders lying opposite one another are covered by the front of the four columns 32 of the kneading machine 1 supporting the machine housing 2 at a distance above the standing surface in FIG. 2.
  • the support frame 31 has two mutually opposite, upwardly facing sheets 33, each of which is reinforced on the outside by a square tube 34. At the upward-facing free ends of these sheets 33, of which only the front one can be seen in FIG. 2, a contact surface 35 is provided, on which an annular flange 36 arranged on the outer circumferential surface of the inner housing 16 has its flange surface facing the standing surface rests in the use position of the lifting device 29.
  • Two upward-facing centering sleeves 37 are provided on each of the two support surfaces 35, which bear against the circumferential surface of the annular flange 36 of the inner housing 16 resting on the support surfaces 35 and position the inner housing 16 between the support surfaces 35.
  • each of the two lifting slides 30 also has two upward-pointing centering pins 38, which engage in the centering holes 39 of the support frame 31, indicated by dash-dotted lines in FIG. 2, in the use position of the lifting device 29, the inner housing 16 on the support frame 31 and the support frame 31 in turn centered on the lifting carriage 30.
  • the lifting device 29 also serves to lower and raise the container 7, the installation and removal of the Inner housing, the tools 5 and all of their drive wheels no additional lifting equipment required.
  • a labyrinth seal 42 is provided between the outer housing 15 and the machine housing 2 for sealing the drive region 40 of the kneading machine 1 from the product region 41 thereof.
  • the outer housing 15 has on its end facing the product area 41 an annular groove 43 into which a web 44 connected to the machine housing 2 engages.
  • a seal 45 is provided further above in FIG. 2. It is a particular advantage of the kneading machine 1 that the inner housing does not have to be mounted on the dynamic seal 45, for example as part of the inspection and inspection intervals, and therefore cannot be damaged.
  • the outer housing 15 is seated on the ring flange 36 of the inner housing 16 with its end facing the product area.
  • This ring flange 36 extends up to the arranged in the end face of the outer housing 15 annular groove 43 of the labyrinth seal 42 so that the gap formed between the outer housing 15 and the inner housing 16 is shielded by the web 44 of the labyrinth seal 42.
  • a sealing ring 46 is provided on the flange surface acting on the end face of the outer housing 15, so that penetration of, for example, dangerous mixed material, for example via the viewing openings or the upper, open end face of the inner housing 16, is largely avoided.
  • the support frame 31 has a chassis 47.
  • the lifting slides 30 can be lowered to below the support frame 31, so that the centering holes 39 of the lifting slides 30 come out of the centering pins 38.
  • the chassis 47 By means of this chassis 47, the removed inner housing 16 and the gear parts and tools 5 contained therein can be driven out of the area of the kneading machine 1, for example, into the workshop for overhaul, if, for example, a check is made by the upper, facing away from the base, open and designed as a viewing opening Front 48 of the inner housing 16 has resulted in an impermissible bearing play. It is also possible to work with the mutual use of two gears 4.
  • the gear 4 and all of its gear parts can be subjected to thorough inspection and inspection in a short time and with simple aids, such as, for example is necessary in the processing of fuels and explosives in short time intervals.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
EP89112428A 1988-07-22 1989-07-07 Vertikal-Rühr- und/oder Knetmaschine mit drehbar gelagertem Getriebegehäuse Withdrawn EP0351666A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824886A DE3824886A1 (de) 1988-07-22 1988-07-22 Vertikal-ruehr- und/oder knetmaschine mit drehbar gelagertem getriebegehaeuse
DE3824886 1988-07-22

Publications (1)

Publication Number Publication Date
EP0351666A1 true EP0351666A1 (de) 1990-01-24

Family

ID=6359287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112428A Withdrawn EP0351666A1 (de) 1988-07-22 1989-07-07 Vertikal-Rühr- und/oder Knetmaschine mit drehbar gelagertem Getriebegehäuse

Country Status (3)

Country Link
US (1) US5028141A (enrdf_load_stackoverflow)
EP (1) EP0351666A1 (enrdf_load_stackoverflow)
DE (1) DE3824886A1 (enrdf_load_stackoverflow)

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CN109158004A (zh) * 2018-09-26 2019-01-08 重庆腾治科技有限公司 用于混凝土防腐剂混合的搅拌装置
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CN111013461B (zh) * 2019-12-25 2021-11-19 重庆德庄农产品开发有限公司 连续式原料混合装置
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DE3824886A1 (de) 1990-01-25
DE3824886C2 (enrdf_load_stackoverflow) 1991-10-31
US5028141A (en) 1991-07-02

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