EP3268121A2

EP3268121A2 - Stirring rod assembly and transport and storage container for liquids with a stirring rod assembly

Info

Publication number: EP3268121A2
Application number: EP16703736.5A
Authority: EP
Inventors: Carsten BÜSCH; Peter BLÖMER; Ulrich Paul
Original assignee: Protechna SA
Current assignee: Protechna SA
Priority date: 2015-03-11
Filing date: 2016-01-26
Publication date: 2018-01-17
Anticipated expiration: 2036-01-26
Also published as: SA517382275B1; MY188721A; RU2690341C2; CA2977717C; US20180056257A1; ES2765867T3; WO2016142090A2; WO2016142090A3; EP3369477B1; IL254135A0; JP2018512269A; RU2017131897A3; IL254135B; MX2017011114A; KR101946939B1; AR103770A1; CN205797138U; DE102015210904B4; DK3369477T3; ZA201706128B

Abstract

The invention relates to a stirring rod assembly (29) for connection to an agitator that can be combined with a container (20) for receiving liquids, wherein the container comprises in an upper base wall (26) a filling opening, which can be closed with a lid (28), for filling the container, wherein the stirring rod assembly has a rod-shaped stirring element carrier (30) which is designed as a hollow shaft for receiving a stirrer shaft, and stirring elements (32) which are pivotably connected to the stirring element carrier, such that, in an assembly configuration, the stirring elements are pivoted with a free end of a stirring element relative to a rotational axis of the stirring element carrier. According to the invention, a spring device is arranged between the stirring elements and the stirring element carrier in such a way that, in an operating configuration, the stirring elements are subjected to centrifugal force as a result of a rotation of the stirring element carrier and assume a pivoting position, which is dependent on the rotational speed of the stirring element carrier, with a stirring angle δ with respect to the axis of rotation, wherein the free ends of the stirring element are arranged at a stirring distance r from the axis of rotation and wherein the spring force, which increases with an increasing stirring angle, counteracts the centrifugal force.

Description

Stirring bar arrangement and transport and storage containers for liquids with a stirring bar arrangement

The invention relates to a Rührstabanordnung for connection to a combinable with a container for receiving liquids agitator, wherein the container in an upper bottom wall a closable with a lid Einfüllö opening for filling the container up, wherein the Rührstabanordnung a rod-shaped, as a hollow shaft to Including a stirring agitator shaft formed Rührorganträger and with the Rührorganträger pivotally connected stirring elements, such that the stirring elements are pivoted in a mounting configuration with a free Rührorganende carrier against a rotational axis of the Rührorgan- carrier.

A stirring rod assembly of the type mentioned is known from EP 2 620 210 AI. The stirring elements of the known stirring rod arrangement are pivoted against the stirring member carrier in a mounting configuration in which the stirring rod arrangement can be inserted into a container for receiving liquids and secured in this position via a latching connection on the stirring element carrier. To transfer to an operating configuration in which the stirring elements are with their Rührorganenden in a radially spaced from the stirrer carrier position, the stirring elements must be manually pivoted. The present invention has for its object to propose a Rührstabanordnung of the type mentioned, which allows automatic transfer of the stirring members of the mounting configuration in the operating configuration.

To achieve this object, the stirring rod arrangement according to the invention has the features of claim 1.

According to the invention, a spring device is arranged between the stirring elements and the stirring element carrier, such that the stirring elements assume a rotational position of the stirring element carrier dependent on the rotational speed of the stirring element carrier in an operating configuration in Fo lge rotation position of the Rührorganträgers pivoting position with a trained relative to the axis of rotation δ, such that the free Rührorganenden are arranged in a stirring distance r from the axis of rotation and the spring force is greater with increasing stirring angle.

According to the invention, therefore, an automatic pivoting of the stirring members is provided, such that the stirring member ends are pivoted open during operation of the stirring rod assembly as a result of the centrifugal force acting on the stirring member ends and arranged in a stirring distance from the axis of rotation. This not only makes it possible to carry out the transfer of the stirring elements of the Montagekonfigurati- on in the operating configuration without manual intervention. In addition, the desired distance of the stirring element ends can be adjusted by the Rührorganträger on the selection of a suitable speed of the stirring rod. The spring force acts as a restoring force, which counteracts the centrifugal force and, with decreasing rotational speed, restores the stirrer ends against the axis of rotation. acts. Thus, residual quantities of liquids which accumulate in a narrowed bottom area of the container can be stirred up, in particular even in the container, without the risk of collision of the stirring element ends with the container wall. The restoring spring action also has the consequence that even agitators from a

Low density material in a liquid of comparable density can not float, but are effective in a desired stirring depth in the liquid.

It is particularly advantageous if the free stirrer elements of the stirrers are arranged below the pivot bearings formed on the agitator carrier in the assembly configuration, since the stirrers can thus be pivoted directly against one another in the assembly configuration so that the stirrer assembly is inserted through the filling opening of the stirrer bar Container in the container relevant cross section in the range of mutually pivoted stirrers is as low as possible.

If the spring device is designed as a leg spring, in particular the above-described cross-sectional minimization can still be supported, since the leg spring can be installed radially on the outside of the stirrers with the smallest possible radial projection.

Preferably, one leg of the leg spring is supported above the pivot bearing on the agitator carrier and the other leg of the leg spring is supported on the stirrer.

In a further advantageous embodiment, the Federeinrich- device is designed as a spiral spring, which requires the smallest possible installation space. For example, one end of the coil spring may be arranged on a pivot pin of the pivot bearing and the other end on the agitator. If the spring device is designed as an electrically conductive connection between the agitator carrier and the stirring element, a reliable electrostatic discharge independent of the design of the pivot bearing can take place from the liquid to be stirred via the stirring elements into the agitator carrier.

It is particularly advantageous when the spring device is made of an electrically conductive plastic, wherein in a particularly preferred embodiment, the Rührstabanordnung total with all its components in plastic, preferably electrically conductive plastic, is executable.

If the spring device is formed from a material extension formed on the stirring element, it is possible to design the spring device together with the stirring element in a single production process, for example in an injection molding process. In addition, an integral connection between the spring device and the stirring element is thereby realized, so that it is possible to dispense with special, separately formed connection devices.

This is also the case for the connection of the spring device with the Rührorganträger the case when the spring device with a free terminal connection is positively connected, for example via a latching connection, with the Rührorganträger.

Also, regardless of the arrangement of a spring means on the stirring rod, it proves to be advantageous in a Rührstabanordnung of the aforementioned type, when the stirring members are made of electrically conductive plastic.

Also, regardless of the arrangement of a spring device on the stirring rod arrangement, it proves to be advantageous if the stirring means a bearing end and a web connected to the bearing end, comprising stirrer end formed with a flow tube, wherein the flow tube has a tube wall.

Due to the formation of the Rührorganendes with a flow tube, a stabilization of the rotating in a flow medium Rührorganendes is effected in the flow direction.

If the pipe wall is formed such that in a section perpendicular to the longitudinal axis of the web above a pipe axis, the length of the pipe wall in the flow direction is greater than below the pipe axis, above the pipe axis in the flow direction a longer surface profile is formed as below the flow axis, so that on the Aufühorganenden acting buoyancy is increased and a stabilization of Rührorganenden in the liquid flow during operation is the result.

Moreover, if a surface area of a buoyancy surface formed by an upper part of the pipe wall is inclined at an angle to the direction of flow, a desired buoyancy force can be set at the agitator ends via the choice of the angle of attack as a function of the rotational speed of the stirring rod arrangement. Thus, it is possible, for example, to make a special adjustment of the stirring rod to the viscosity or other material condition of the liquids aufzurührenden by a suitable choice of the angle of attack.

Preferably, the pipe wall is formed as a slender cone, such that a flow inlet cross section of the flow tube is inclined to a flow outlet cross section of the flow tube at a pipe angle, so that thereby influencing the buoyancy force is possible.

When the flow tube at a flow inlet cross-section has a storage edge with an annularly shaped storage surface, the a web surface of the web connects, depending on the design and size of the storage area also a desired flow resistance of the stirring element can be adjusted.

It is particularly advantageous if the storage area is inclined relative to the axis of rotation by a storage surface angle in the direction of flow, so that apart from the area size of the storage area, the flow resistance can be adjusted over the storage area angle.

Preferably, the storage surface has at least one surface segment, which is inclined relative to a planar partial surface of the storage surface by a surface segment angle, so that in the manner of a known from aerodynamics or flight mechanics wing flap at a defined point attacking additional buoyancy force can be generated, the Influencing the relative arrangement of Rührorganendes serves in the flow environment. In particular, depending on the medium to be stirred, selected angular ranges for the surface segment angle may prove advantageous. The surface segment angle β i, β ₂ is preferably between 5 and 90 °, in particular between 5 and 45 °, particularly preferably between 5 and 20 °, and in particular between 10 and 15 °, particularly preferably 10 °.

Depending on the desired direction of action of the particular buoyancy force generated by the salaried surface segment, the surface segment may be inclined counter to the direction of flow or in the direction of flow. It is particularly advantageous if the surface segment is changeable in its inclination relative to the flat partial surface of the storage surface, so that adaptation of the buoyancy effect induced by the surface segment to the respective medium to be stirred by means of the stirring rod arrangement can be achieved. Preferably, the surface segment is formed as a ring segment, such that an outer edge of the surface segment is formed by the peripheral edge of the storage surface and a connecting edge of the surface segment in the transition to the partial surface tangent to the flow inlet cross-section of the flow tube.

In particular, when a buoyancy moment is to be generated at the end of the stirring element by means of the surface segments, it is advantageous if the storage surface has two surface segments, which are preferably arranged opposite one another. Preferably, the surface segment angle ß i, ß ₂ are equal in magnitude.

It may also be advantageous for the generation of a buoyancy torque if the area segment in the inflow direction and a surface segment are inclined counter to the inflow direction. If in a central web portion a buoyancy pocket is formed with a buoyancy surface which is inclined relative to the axis of rotation by an angle of inclination in the flow direction and with an angle of attack relative to the direction of flow, the buoyancy or flow resistance behavior of the agitation system can be suitably selected by suitably selecting the angle be influenced by the web surface.

Preferably, the Rührorganträger has at its upper axial end a connection device for connection to the lid, wherein the connection device has an axial stop for abutment against a formed in the bottom of a cover for receiving a bung stopper plug formed support edge defining a formed in the bottom piercing opening , This makes it possible that the Rührstabanordnung also independent of a combined with the Rührstabanordnung agitator means of the lid with the container connected is. In this way, the stirring rod arrangement can also be arranged on a container or remain without having to necessarily couple an agitator to the stirring rod arrangement.

The above advantageous embodiment of the Rührstabanordnung with the arranged at its upper axial end connection device thus proves to be independent of the other configuration of the Rührorganträgers, ie in particular regardless of whether a spring means between the Rührorganen and the Rührorganträger is arranged, and in particular independently how the stirrers are designed, as advantageous.

If the abutment of the abovementioned connection device is formed by a retaining ring accommodated in a securing ring receptacle of the connection device, this can be carried out particularly simply on the one hand, and on the other hand the design of the abutment as a securing ring which rests on the support edge permits a rotational movement as required between the stir bar assembly and the lid. Preferably, the circlip rests on the support edge only when the stirring rod assembly is at a standstill, whereas the circlip is raised from the support edge during rotation of the agitator assembly relative to the cover to reduce friction and, in particular, friction resulting from friction and thus possible contamination of the liquid received in the container to avoid.

Preferably, the locking ring receptacle is designed as a separate component which is connected in a form-fitting manner with the agitator carrier in order to form the connection device.

Alternatively, it is also possible, however, for the securing ring receptacle to be formed integrally with the stirring element carrier. It is particularly preferred if the securing ring receptacle is formed from a material extension formed on the stirring element carrier, which can be produced, for example, by a forming process on the contour of the stirring element carrier. If the Rührorganträger has at its lower axial end formed as a shaft hub connection means for connecting the Rührorgane, wherein the connection means is positively connected to the Rührorganträger and has for connection to the Rührorganen and training of pivot bearings journals, the Rührorganträger can be designed particularly simple and the Compared with this complex configured connection device can be manufactured separately. The design of the connection device on the agitator carrier can then take place by simply producing the form-fitting connection between the connection device and the agitator carrier.

It is particularly advantageous if the connection device simultaneously serves for connection to the agitator shaft of the agitator.

If the connection of the connecting device with the agitator shaft is formed positively, and this connection can be made without the aid of tools in a simple manner.

Preferably, the connection device has a first positive connection device for transmitting the torque of the agitator shaft to the Rührorgane and a second connection means for axially securing the connection device on the agitator shaft, so that not only a secure transmission of torque from the agitator shaft to the Rührstabanordnung by a positive connection device but also the axial securing of a defined axial relative position between agitator shaft and stirring rod arrangement takes place via a form-locking connecting device. Preferably, the Rührstabanordnung is formed so that it is connected to the lid and can be used together with the lid as a mounting unit in a filling opening of a container and connectable by means of a connection of the lid with the filling opening of the container with the container, so that one in their composite with the

Container secured combination of Rührstabanordnung with a container by a simple replacement of the standard arranged on the filling opening of the container lid can be made against a connected as a mounting unit with the Rührstabanordnung cover.

Preferably, to secure the connection of the lid with the Rührstabanordnung and forming a captive composite of the lid with the Rührstabanordnung the lid provided with a plug in the trough of the lid bung, such that the retaining ring in a both sides axially limited ring receiving space designed as a mounting unit Rührstabanordnung is included.

The present invention also relates, in particular, to a transport and storage container for liquids with a plastic container designed as an inner container, which has in an upper bottom wall a filling opening which can be closed with a lid for filling the container

Container and at a front side an outlet connection for connection of an outlet fitting and a two side walls, a rear wall and a front wall of the container interconnecting lower bottom wall for supporting the container on a pallet base of a provided with an outer jacket for receiving the container transport pallet, wherein the lid of the Container is provided with a Rührstabanordnung according to the above-described advantageous embodiments. Nachfo lying the invention is explained in detail with reference to the drawings. demonstrate:

1 is a longitudinal sectional view of a usable as an inner container for a transport and storage container for liquids container with a stirring rod assembly in Monta configuration;

Fig. 2 is a partial view of an upper axial end of the in Fig. 1st

shown Rührstabanordnung with inserted agitator shaft;

FIG. 3 shows the stirring rod arrangement shown in FIG. 2 with an axially raised agitator shaft; FIG.

FIG. 4 shows the stirring rod arrangement shown in FIG. 1 in a transport state in an enlarged partial sectional view; FIG.

Fig. 5 is an exploded view of another embodiment of the stirring rod assembly; Fig. 6, the stirring rod assembly shown in Fig. 5 in mounted

Status;

FIG. 7 shows an alternative embodiment of a connection device formed on the upper axial end of the stirring rod arrangement; FIG.

Fig. 8, the lower axial end of the Rührstaban- order shown in Fig. 1 in an enlarged view with a plurality of

stirrers;

Fig. 9, the arrangement shown in Fig. 8 of stirrers in

a sectional view according to section line IX-IX;

FIG. 10 shows the stirring element arrangement shown in FIG. 8 in an operating configuration; FIG.

11 shows a single stirrer in plan view; FIG. 12 shows an isometric view of the stirring element shown in FIG. 11 in rear view; FIG.

FIG. 13 shows the stirring element illustrated in FIG. 11 in a sectional view according to section line XIII-XIII; FIG.

FIG. 14 shows the stirrer shown in FIG. 11 according to section line XIV-XIV; FIG.

FIG. 15 shows a further embodiment of a stirring element in side view; FIG.

FIG. 16 shows the stirring element illustrated in FIG. 15 in an isometric view. FIG.

Fig. 1 shows a designed as an inner container for a transport and storage container not shown container 20 for receiving liquids. The container 20 then has a lower bottom wall 21, which serves for support on a pallet base of a transport pallet (not shown here), which is provided with a likewise not shown grid shell, which receives the container 20, a front wall 22, two each other opposite side walls 23, 24, a rear wall 25 and one of the lower bottom wall 21 opposite upper bottom wall 26. The upper bottom wall 26 is provided with a filler neck 27 which can be closed with a cover 28 designed here as a screw cap.

In the exemplary embodiment illustrated, the cover 28 forms a component of a stirring rod arrangement 29 which has as essential components a stirring element carrier 30 formed as a hollow shaft made of plastic which is electrically conductive in the present case, as well as a stirring element arrangement 3 1 which, in the case of the present exemplary embodiment has three stirrers 32 which are connected by means of a shaft 33 with the Rührorganträger 30.

As is apparent, in particular, from a combination of FIGS. 1, 8 and 10, spring devices designed here as torsion springs 34 are provided between the stirring members 32 and the agitator carrier 30, which in the present case are indirectly connected via the shaft hub 33 to the agitator carrier 30, wherein the shaft hub for the positive connection with free leg ends 35 of the leg springs 34 has latching receptacles 36, into which latching projections 37 formed on the leg ends 35 engage. The leg springs 34 are integrally formed in the present case, the stirring members 32, wherein in the case of the present embodiment, a cohesive connection of the leg springs 34 is formed on the stirring members 32 characterized in that the stirring members 32 are made together with the torsion springs 34 in an injection molding. In the prestressed state, the torsion springs are S-shaped.

The torsion springs 34 are formed as the stirring members 32 and the shaft hub 33 in accordance with the Rührorganträger 30 of an electrically conductive plastic material. In Figs. 1 and 8, the stirring rod assembly is shown in a mounting configuration in which no rotation of the Rührorganträgers 30 by means of a shaft hub 33 with the Rührorganträger 30 rotationally rigidly connected agitator shaft 38 takes place, as shown in Fig. 2, from above in the Rührorganträger 30 is introduced and with a shown in Fig. 5, formed at the lower axial end of the agitator shaft 38 shaft journal 39 in the illustrated in Fig. 9, formed in the shaft hub 33 shaft journal receptacle 40 is inserted. For axial securing of the torque-transmitting connection between the agitator shaft 38 and the shaft hub 33, the shaft journal receptacle 40 is equipped with locking legs 41, which engage in not shown locking receptacles on the shaft journal 39. As shown in particular a combination of FIGS. 9 and 10, the stirring members 32 are formed here with bearing eyes 42 designed as a bearing eye for forming a pivot bearing 43 in each case on a shaft hub 33 formed on the pivot pin 44. The axial securing of the bearing ends 42 on the pivot pin 44 via a positive connection, such that a formed on the bearing ends 42 locking collar 45 after positioning of the stirring members 32 on the

Pivot pin 44 behind a locking collar 46 of the pivot pin engages. As is made clear by a comparison of FIGS. 8 and 10, in an operating configuration of the stirring rod assembly 29 in which a rotation of the agitator carrier 30 about an axis of rotation 47 due to a rotary drive of the agitator shaft 38 coupled to the agitator 30 via the shaft hub 33, the stirring elements 32 against the restoring spring force of the torsion springs 34 in a dependent of the rotational speed of the agitator 30 pivot position transferred with an opposite the axis of rotation 47 formed stirring angle δ such that Stirring 48 are arranged in a stirring distance r of the rotation axis 47, which is proportional to the stirring angle δ or the rotational speed of the agitator shaft 38 is.

As shown particularly by a combination of FIGS. 9, 11 and 13, the stirring element ends 48 are formed with a flow tube which is provided with an annular storage surface 5 1 at its flow inlet cross section 53, that is to say its side facing the stirring direction 50. The storage area 5 1 is inclined at a storage surface angle β with respect to the axis of rotation 47 in the direction of flow 50. The flow tube 49 has a tube wall 52, which is formed as a slender cone, such that the flow inlet cross section 53 is inclined to a flow outlet cross section 54 of the flow tube 49 at a tube angle γ. Where, as shown in FIG. 13, represents, in a section perpendicular to a longitudinal axis 55 (Fig. 11) of the bearing end 42 of the stirring member 32 with the Rührorganende 48 connecting web 56 above a tube axis 57, the length L i of the tube wall 52 in the flow direction 50 is greater than the length L ₂ the pipe wall 52 below the flow axis 57th

As further shown in FIG. 13, a surface base 58 of a concave lifting surface 60 formed by an upper part 59 of the tube wall 52 is inclined at an angle α to the direction of flow 50.

FIGS. 15 and 16 show an agitator 82 which, in contrast to the stirrer 32 shown in particular in FIGS. 13 and 14, has a stirrer end 83 which, unlike the stirrer end 48 of the stirrer 82, has a storage surface 84 is provided, which is composed of a flat surface 85 with formed on the peripheral edge of the storage surface 84 surface segments 86 and 87, wherein the surface segments 86, 87 in the present case against the direction of flow 50 relative to the planar surface 85 in each case by a surface segment angle ß i or ß _{2 are} inclined.

As particularly shown in FIG. 16, the surface segments 86, 87 are formed as ring segments, wherein in each case an outer edge 88 of the surface segments 86, 87 by the peripheral edge of the storage surface 84 and a connecting edge 89 of the surface segments 86, 87 in the transition to the partial surface 85 tangentially to the flow inlet cross section 53 of the flow tube 49 of the Rührorganendes 83 extends, in the present case, the connection edges 89 parallel to each other. The two surface segments are flat in the case of the illustrated embodiment and also have in the present case a matching size.

The stirrer 82 shown in FIGS. 15 and 16 is apart from the stirrer end 83, which is the storage surface 84 instead of the storage surface 5 first has, identical to the stirring member 32 shown in FIGS. 13 and 14, so that matching trained components of the stirring member 82 have corresponding matching reference numerals. As shown particularly by a combination of FIGS. 11 and 14, a buoyancy pocket 61 is formed in a middle web portion of the web 56, such that starting from a substantially straight leading edge 62 of the web 56 by the inclination angle ε relative to the rotation axis 47 and an angle of attack a ₂ with respect to the direction of flow 50 inclined lifting surface 63 is formed, which is lowered over obliquely to the lifting surface 63 employees flanks 64, 65 relative to the adjacent web surface 66.

As shown in particular in FIGS. 4 to 7, the agitator carrier 30 of the stirring rod assembly 29 is provided at its upper axial end with connecting devices 67, 68 and 69 shown here in three different embodiments, which in differently formed securing receptacles 70, 71, 72 in the record this case coincident trained locking ring 73. 4 and 6 show the connection devices 67 and 68 in the transport state of the stirring rod arrangement 29. As is apparent in particular from the connection device 68 shown in a partial sectional view in FIG. 5, the connection device 68 serves to connect the stirring element carrier 30 to the stirring rod arrangement 29 For this purpose, the Rührorganträger 30 shown in FIGS. 5 and 6 has a trained as a sleeve and welded to the upper axial end of the Rührorganträgers 30

Fuse holder 7 1 on. For assembly, the upper axial end of the Rührorganträgers 30 is guided with the formed thereon securing receptacle 71 from below through a formed in the cover 28 through-hole 74, so subsequently introduced from above the locking ring 73 in a lid for receiving a bung plug 75 formed plug recess 76 and on the fuse holder 7 1, the one by two Frets 77 has limited receiving groove 78, can be snapped. This results in a relative arrangement between the cover 28 and the connecting device 68, in which the locking ring 73 rests against a in the bottom of the lid 28 Durchsteckö the opening limiting support edge 79, so that the locking ring 73 forms an axial stop against the support edge 79.

If the bung stopper 75 is then screwed into the stopper depression 76 of the cover 28 from above, a lower edge 80 of the bung stopper 75 together with the support edge 79 of the cover 28 defines a ring receiving space 8 1 in which the securing ring is limited or substantially none at best can perform axial movement, so that a secure connection between the cover 28 and the Rührorganträger 30 is formed.

In this way, the container 20 can also be combined with a stirring rod assembly 29 independently of the installation of an agitator. When a stirrer is connected to the stir bar assembly 29 so as to agitate a liquid received in the container, it is sufficient to remove the bung plug 75 from the plug well 76 of the lid 28 and introduce the agitator shaft 38 from above into the agitator carrier 30 and therewith to couple. In this case, the agitator can be placed in the usual way on the container 20 and a support structure connected to the outer shell of the container 20 and connected thereto. Preferably, there is a slight axial lifting of the Rührorganträgers 30 from the container 20, as shown by way of example in Fig. 3, to prevent a contact contact between the locking ring 73 and the support edge 79 of the lid 28 during a rotary drive of the Rührorganträgers 30 by means of the agitator shaft 38 and thus to avoid the formation of a possibly contaminating the liquid contact wear.

Claims

claims

Stirring rod assembly (29) for connection to an agitator combinable with a container (20) for receiving liquids, the container having in an upper bottom wall (26) a filling opening closable with a lid (28) for filling the container, the stirring rod arrangement a rod-shaped, as a hollow shaft for receiving a Rührwerkswelle (38) formed Rührorganträger (30) and with the Rührorganträger pivotally connected Rührorgane (32, 82), such that the Rührorgane in a mounting configuration with a free Rührorganende (48, 83) against a Rotation axis (47) of the agitator carrier are pivoted,

characterized ,

in that a spring device is arranged between the stirring elements and the stirring element carrier such that the stirring elements are subjected to centrifugal force in an operating configuration of a rotation of the stirring element carrier and occupy a pivoting position dependent on the rotational speed of the stirring element carrier with a stirring angle δ formed with respect to the axis of rotation the free stirrer ends in a stirring distance r are arranged from the axis of rotation and counteracts with increasing stirring angle increasing spring force of the centrifugal force.

2. stir bar arrangement according to claim 1,

characterized,

the free stirring element ends (48, 83) of the stirring elements (32, 82) in the assembly configuration are arranged below pivot bearings (43) formed on the stirring element carrier (30).

3. stirring rod assembly according to claim 1 or 2,

characterized,

the spring device is designed as a leg spring (34).

Stirring device according to claim 3,

characterized,

in that one leg of the leg spring (34) is supported above the pivot bearing (43) on the agitator carrier (30) and the other leg of the leg spring is supported on the agitator (32, 82).

5. stirring rod arrangement according to claim 1 or 2,

characterized,

that the spring device is designed as a spiral spring.

6. stirring rod arrangement according to one of the preceding claims,

characterized,

the spring device is designed as an electrically conductive connection between the agitator carrier (30) and the stirring element (32, 82).

Stirring rod assembly according to one of the preceding claims, characterized that the spring device is made of an electrically conductive plastic.

8. stir bar arrangement according to one of the preceding claims,

characterized,

the spring device is formed from a material extension formed on the stirring element (32, 82).

Stirring device according to the preamble of claim 1, in particular according to one of claims 1 to 8,

characterized,

the stirrers (32, 82) are made of electrically conductive plastic.

Stirring rod assembly in particular according to the preamble of claim 1, in particular according to one of claims 1 to 9,

characterized,

in that the stirring elements (32, 82) have a bearing end (42) and a stirring element end (48, 83) connected to the bearing end and formed with a flow tube (49) via a web (56), the flow tube having a tube wall (52) which extends in the direction of flow. 11. stirring rod arrangement according to claim 10,

characterized,

the pipe wall (52) is formed in such a way that, in a section perpendicular to the longitudinal axis (55) of the web (56) above a pipe axis (57), the length of the pipe wall in the direction of flow is greater than below the pipe axis.

12. stir bar arrangement according to claim 10 or 11, characterized,

a surface base (58) of a lifting surface (60) formed by an upper part (59) of the pipe wall (52) is inclined at an angle of attack ι to the direction of flow (50). 13. stir bar arrangement according to claim 12,

characterized,

in that the pipe wall (52) is designed as a slanted cone, such that a flow inlet cross section (53) of the flow pipe (49) to a flow outlet cross section (54) of the flow pipe is inclined at a pipe angle γ.

14. stirring rod arrangement according to one of claims 10 to 13,

characterized,

in that the flow pipe (49) has at its flow inlet cross-section (53) a storage rim with an annularly formed storage surface (51, 84) which adjoins a web surface (66).

15. stirring rod arrangement according to claim 14,

characterized,

the stowage surface (51, 84) is inclined relative to the axis of rotation (47) by a stowage angle β in the direction of flow (50). 16. stirring rod arrangement according to claim 14 or 15,

characterized,

the storage surface (84) has at least one surface segment (86, 87) which is inclined relative to a planar partial surface (85) of the storage surface by a surface segment angle βi, β ₂ . 17. stirring rod arrangement according to claim 16,

characterized, that the surface segment angle ßi, ß _{2 is} between 5 and 90 °.

18. stirring rod arrangement according to claim 16,

characterized,

that the surface segment angle ßi, ß _{2 is} between 5 and 45 °.

19. stir bar arrangement according to claim 16,

characterized,

that the surface segment angle ßi, ß _{2 is} between 5 and 20 °.

20. stir bar arrangement according to claim 16,

characterized,

that the surface segment angle ßi, ß _{2 is} between 10 and 15 °.

21. stirring rod arrangement according to one of claims 16 to 20,

characterized,

the surface segment (86, 87) is inclined counter to the direction of flow (50).

22. stirring rod arrangement according to one of claims 16 to 20,

characterized,

that the surface segment is inclined in the direction of flow (50).

23. stirring rod arrangement according to one of claims 16 to 20,

characterized,

that the surface segment is variable in its inclination relative to the partial surface.

24. stirring rod arrangement according to one of claims 16 to 23,

characterized,

that the surface segment (86, 87) is designed as a ring segment, in such a way that an outer edge (88) of the surface segment runs tangentially to the flow inlet cross section (53) of the flow tube (49) through the circumferential edge of the storage surface (84) and a connecting edge (89) of the bottle segment in the transition to the partial surface (85).

25. stirring rod arrangement according to one of claims 16 to 24,

characterized,

the storage area (84) has two area segments (86, 87).

26. stirring rod arrangement according to claim 21,

characterized,

in that the surface segments (86, 87) are arranged opposite one another.

27. stirring rod arrangement according to claim 25 or 26,

characterized,

that the surface segment angle ßi, ß ₂ are equal in magnitude

28. stirring rod arrangement according to claim 25 or 26,

characterized,

that a surface segment in the direction of flow and a surface segment is inclined counter to the direction of flow.

29. stirring rod arrangement according to one of claims 10 to 28,

characterized,

in that a buoyancy surface (61) is formed in a central web section of the web (56), with a lifting surface that is inclined relative to the rotational axis (47) by an inclination angle ε in the flow direction (50) and with an angle of attack a ₂ relative to the direction of flow.

30. Rührstabanordnung according to the preamble of claim 1, in particular according to one of claims 1 to 29,

characterized,

in that the agitator carrier (30) has at its upper axial end a connection device (67, 68, 69) for connection to the cover

(28), wherein the connection device has an axial abutment against an in the bottom of a in the lid for receiving a bung plug (75) formed plug well (76) formed support edge (79), which formed in the bottom th through hole (74) limited.

31. stir bar arrangement according to claim 30,

characterized,

in that the stop of the connection device (67, 68, 69) is formed by a retaining ring (73) received in a circlip receptacle (70, 71, 72) of the connection device.

32. stir bar arrangement according to claim 31,

characterized,

in that the circlip receptacle (70) is designed as a separate component which is connected in a form-fitting manner with the agitator carrier (30) to form the connection device (67).

33. Stirring rod assembly according to claim 31,

characterized,

the circlip receptacle (71, 72) is formed integrally with the agitator carrier (30). 34. Stirring rod assembly according to claim 33,

characterized,

the circlip receptacle (72) is formed from a material extension formed on the agitator carrier (30). Stirring rod assembly according to one of the preceding claims, characterized

in that the agitator carrier (30) has at its lower axial end a connection device designed as a shaft hub (33) for connecting the stirring elements (32), wherein the connection device is connected in a form-fitting manner to the agitator carrier and for connection to the stirring elements and formation of pivot bearings ( 43) bearing pin (44).

36. stir bar arrangement according to claim 35,

characterized,

that the connection device simultaneously to the connection

Stirring shaft of the agitator is used.

37. stirring rod arrangement according to claim 36,

characterized,

that the connection of the connection device with the agitator shaft (38) of the agitator is formed positively.

Stirring rod assembly according to claim 37,

characterized,

in that the connection device has a first form-locking connection device for transmitting the torque of the agitator shaft (38) to the stirring elements (32, 82) and a second connection device for the axial securing of the connection device on the agitator shaft.

, Stirring rod arrangement according to one of Claims 35 to 38,

characterized,

in that the stirring rod arrangement (29) is connected to the cover (28), can be inserted together with the cover as an assembly unit into a filling opening of a container (20) and as an assembly unit by means of a Connection of the lid with the filling opening with the container is connectable.

40. stirring rod assembly according to claim 39,

characterized,

that for connecting the lid (28) with the Rührstabanordnung

(29) and design of the mounting unit of the lid is provided with a plug in a stopper (76) of the lid arranged bung stopper (75), such that the retaining ring (73) is received in a both sides axially limited ring receiving space (81). 41. Transport and storage containers for liquids with a designed as an inner container container (20) made of plastic in an upper bottom wall (26) with a lid (28) closable filling opening for filling the container and on a front side an outlet connection for connecting a Outlet fitting and a bottom wall (21) connecting two side walls (23, 24), a rear wall (25) and a front wall (22) of the container for supporting the container on a pallet base of a transport pallet provided with an outer jacket for receiving the container

characterized,

in that the lid is provided with a stirring rod arrangement (29) according to one of claims 1 to 40.