Guide device for a mixer, mixer and arrangement

Abstract

Guide device (16) for an agitator (12), in particular a submersible agitator for industrial, biogas or agricultural use, for axially guiding the agitator (12) along a guide mast (14) between an upper service area of ​​the guide mast (14) and a lower operating area of ​​the guide mast (14), wherein the agitator (12) can be attached to the guide device (16) and the guide device (16) can be axially guided on the guide mast (14) and fixed radially and angularly to the guide mast (14), characterized in that the guide device (16) is in two parts as a quick-release guide device (16) with a guide part (26) that can be assigned to or associated with the agitator (12), preferably having a substantially U-shaped design, for guiding the agitator (12) along the guide mast (14),and is formed with a locking element (28) that is attributable to or associated with the guide element (26) and is essentially U-shaped for axially displaceable fixing of the guide element (26) to the guide mast (14), wherein the guide element (26) has at least one, in particular partially angled, one-sided open insertion receptacle (30) for the locking element (28), into which the locking element (28) can be inserted, in particular inserted, at least partially into a closed position for fixing the guide element (26) to the guide mast (14), and can be locked, in particular positively, so that the quick-release guide device (16) is guided axially displaceably in the closed position by the interaction of the guide element (26) and the locking element (28) on the guide mast (14), in particular in the Z-direction, and is fixed radially and angularly to the guide mast (14).

Description

[0001] The invention relates to a guide device for an agitator, in particular a submersible agitator for industrial, biogas or agricultural use, for axially guiding the agitator along a guide mast between an upper service area of ​​the guide mast and a lower operating area of ​​the guide mast, wherein the agitator can be attached to the guide device and the guide device can be fixed axially on the guide mast. STATE OF THE ART

[0002] A variety of guide devices of the type mentioned above for guiding agitators on guide masts are known from the prior art.

[0003] Agitators are used in a wide variety of industrial, biogas, and agricultural applications. Typically, these agitators are submersible, meaning they are regularly immersed in a medium, such as liquid manure, contained in a container (e.g., a biogas tank) to thoroughly mix the medium.

[0004] To ensure that the typically large and heavy agitator can be safely and easily mounted on or inside the container and immersed in the medium, it is usually mounted on a guide mast located inside the container using a guide device. The guide device is designed to provide axial guidance of the agitator, i.e., guidance along the longitudinal axis of the guide mast, so that the agitator is fixed in a position that allows it to slide along the guide mast with the aid of the guide device.

[0005] This allows the agitator to be moved between an upper service area of ​​the guide mast, which is usually located outside the medium, and a lower operating area of ​​the guide mast, which is usually located inside the medium, particularly by means of a cable pulley system. Maintenance of the agitator is typically carried out in the service area, whereas its intended operation, i.e., mixing the medium, takes place in the operating area. In other words, the agitator can be immersed in the medium by means of the guide device and, if necessary, retrieved from the medium by means of appropriate guidance along the guide mast.

[0006] To allow the agitator to be moved along the guide mast, it is typically suspended by a lifting cable. Using the principle of a cable pulley system, the force required for movement, particularly upwards towards the service area, is transferred to the agitator, usually generated by a motor. Lowering the agitator into the operating area generally occurs by gravity. Controlled cable release prevents a sudden drop, thus lowering the agitator in a controlled manner. By setting a fixed cable length and thereby preventing further gravity-induced lowering, the agitator can ultimately be locked or held in at least one definable operating position.

[0007] The fixing, i.e., the axially displaceable mounting of the agitator to the guide mast by means of the guide device, is usually achieved by means of at least two bolts or fixed studs. These secure the guide device or the agitator to the guide mast in such a way that it can only be moved axially along the guide mast, but cannot be moved further away from it, and is thus fixed to the guide mast.

[0008] In this regard, DE 195 17 901 C1 discloses, for example, a submersible agitator which can be fixed to a guide mast by means of a guide device, in that the guide device with the submersible agitator mounted on it is attached to the guide mast by means of two bolts.

[0009] Generic guide devices are also known from DE 20 2008 002 576 U1, DE 10 2007 062 563 A1, EP 3 202 490 A1 and CN 2 19 333 839 U.

[0010] However, the known guide devices have the disadvantage that removing the agitator, i.e., detaching it from the guide mast, is relatively complex and involves a considerable risk of damage: For maintenance purposes, it is particularly necessary to move the agitator into the service area and, in particular, to lower the tank's fill level in order to access and loosen the bolts that secure the guide device or the agitator to the guide mast, allowing the agitator to be removed from the mast. The agitator remains suspended from the lifting cable for safety, specifically to ensure it can be removed without risk of falling after the bolts are loosened. A recurring problem is that the agitator, attached to the lifting cable, is often not at its center of gravity, meaning the bolts are subjected to considerable stress due to the agitator's significant weight, especially if one of the bolts has already been loosened.

[0011] Due to the potentially necessary lowering of the container fill level in conjunction with the regularly occurring high load forces during removal and the associated risk of damage and / or wear, fixing using the known guide devices is usually complex, dangerous and therefore inefficient.

[0012] The object of the invention is therefore to provide an improved guide device with regard to the problem discussed above, which in particular enables easy removal of the agitator under comparatively low load forces.

[0013] This problem is solved by a guide device, a stirrer, and an arrangement according to the independent claims. Advantageous embodiments of the invention are the subject of the dependent claims. REVELATION OF THE INVENTION

[0014] The invention relates to a guide device for an agitator, in particular a submersible agitator for industrial, biogas or agricultural use, for axially guiding the agitator along a guide mast between an upper service area of ​​the guide mast and a lower operating area of ​​the guide mast, wherein the agitator can be attached to the guide device and the guide device can be fixed axially on the guide mast.

[0015] Therefore, when the guide device is used as intended, the agitator is attached to the guide device, and the guide device is axially fixed to the guide mast. The guide device is designed such that the agitator can be attached to it and the guide device can be fixed to the guide mast.

[0016] The axial direction in which the guide device can be guided is the longitudinal axis of the guide mast.

[0017] According to the invention, the guide device is designed in two parts as a quick-release guide device with a guide part, preferably essentially U-shaped, which can be assigned to or associated with the agitator, for guiding the agitator along the guide mast, and with a locking part, which can be assigned to or associated with the guide part and is essentially U-shaped, in particular square or rectangular, for axially displaceably securing the guide part to the guide mast, wherein the guide part has at least one, in particular partially angled, open-ended insertion recess for the locking part, into which the locking part can be inserted, in particular inserted, and, in particular, positively locked, at least partially into a locking position for securing the guide part to the guide mast.so that the quick-release guide device can be fixed in the closed position by the interaction of the guide part and the locking part on the guide mast, in particular in the Z direction, in an axially displaceable manner.

[0018] In the context of the present invention, "fixing" means that the guide element in the fixed state can no longer be removed from the guide mast, i.e., it is fixed radially and angularly (cylindrical coordinates), but is nevertheless displaceable along the longitudinal axis of the guide mast.

[0019] The concept according to the invention thus involves defining the guiding direction (Z-direction, longitudinal axis of the guide mast) by means of the guide element, wherein the guide element or the agitator mounted on it can be removed perpendicular to the longitudinal axis of the guide mast, i.e., it can be slid onto the guide mast. The U-shaped locking element, in turn, serves to ultimately fix the guide element to the guide mast (positive locking) or to clamp it (by interaction with the guide element) so that the guide element or agitator can no longer be removed from the guide mast and can therefore only be moved along its longitudinal axis.Due to its bracket shape, the locking part provides a mechanically stable holding option for the guide part, which thus combines the function of two separate retaining bolts in one element and, in conjunction with the insertion recess open on one side, enables uncomplicated fixing of the guide device by simply sliding it in and, if necessary, snapping it into the guide part.

[0020] The advantage of the invention over known solutions, particularly those mentioned above involving fastening with two bolts, is that fastening is quick and easy by simply inserting the U-shaped locking element into the guide section. This significantly reduces the effort required for mounting and dismounting the guide device or the agitator on the guide mast. Furthermore, dismounting does not require lowering the fill level of the container in which the agitator is used, as there is no need to access a lower bolt and the locking element is readily available. In other words, the agitator can advantageously be attached to and removed from the guide mast with essentially a single movement (inserting the locking element).This significantly reduces the time the agitator is supported by the lifting cable and the guide device is subjected to stress, thus advantageously reducing wear and the risk of damage. The agitator can also be secured or detached from the guide mast while partially submerged in the medium.

[0021] According to a preferred embodiment, it is provided that in the closed position, the displaceability of the quick-release guide device in a cross-sectional plane of the guide mast can be blocked by two opposing, sheet-metal-shaped guide sides of the guide part in a first cross-sectional direction, in particular the X-direction, and by the closing part and a sliding side of the guide part in a second cross-sectional direction extending in the cross-sectional plane and orthogonal to the first, in particular the Y-direction, wherein in the closed position the guide part, in particular the sliding side of the guide part, is arranged at least partially on a first side surface of the guide mast and the closing part is arranged at least partially on a second side surface opposite the first side surface and extending in a plane parallel to the first side surface, in particular abutting it.

[0022] In simple terms, the guide element, or rather its base, rests against one side of the guide mast, and the locking element rests against the opposite side of the guide mast; the guide mast is, in effect, clamped between both parts. This is the case when the locking element is correctly inserted into the insertion recess.

[0023] Advantageously, this allows the agitator to be easily moved axially (in the Z direction) along the guide mast using the guide device.

[0024] Preferably, an agitator can be arranged on a mounting area of ​​the sliding side of the guide part.

[0025] According to a preferred embodiment, each of the guide sides has at least one, in particular an upper and a lower, insertion recess on an edge side facing the closure part, which are designed as slot-like insertion sections, wherein preferably at least the upper insertion section is angled, in particular angled by 90°.

[0026] The insertion receptacle is arranged on each of the guide sides, or is a component thereof, and is slot-shaped. Preferably, the insertion receptacle on each guide side is divided into two parts, namely an upper and a lower part (in the Z-direction), so that each guide side has two parts, or an upper and a lower insertion receptacle, which are designed as slot-shaped insertion sections. Each insertion receptacle or insertion section has an insertion direction or insertion axis, which is the direction of extension of the receptacle from the corresponding insertion opening. In the case of an angled path, the insertion direction also has an angled path or a change in direction, preferably from horizontal to vertical. Preferably, the lower insertion receptacle is a simple insertion slot and the upper insertion opening is an angled insertion slot.

[0027] Advantageously, this allows for a form-fitting fixation of the closure part, especially in the case of an angled path.

[0028] According to a preferred embodiment, it is provided that an inner guide surface of the guide sides facing the guide mast comprises at least one, in particular at least one upper and one lower, sliding element, and that the sliding side comprises at least one lower and one upper sliding bolt, each sliding bolt comprising a roller for frictionless rolling on the first side surface of the guide mast.

[0029] Preferably, the sliding elements and / or the roller are made of a relatively soft material with a low coefficient of friction, particularly to prevent scratches. The roller is rotatably mounted relative to the guide pin. The sliding elements are preferably made of plastic, rubber, or a similar soft, low-friction material. This advantageously allows for smooth and wear-reduced movement along the guide mast, as the reduced friction of the roller and sliding elements decreases the force and resistance required for movement.

[0030] According to a preferred embodiment, the guide element has a base-like, preferably disc-shaped, mounting area for the agitator, to which the agitator can be detachably attached. This advantageously enables simple and secure mounting of the agitator.

[0031] Preferably, the fastening area is formed on or in the plane of the sliding surface, in particular on an outer surface of the sliding surface opposite the inner surface. The fastening area is thus preferably part of the sliding surface, or vice versa. Advantageously, this makes the fastening area easily accessible.

[0032] Preferably, the guide elements are attached to the mounting area at right angles. This further improves accessibility.

[0033] In particular, the mounting area extends further in an orthogonal direction to the axis of the guide mast than the sliding surface and projects out from the sliding surface. This further improves accessibility and facilitates the installation of the agitator.

[0034] Preferably, fasteners for the agitator are provided in the protruding area of ​​the mounting surface. These fasteners can be screws, bolts, locking elements, or similar force-fit and / or form-fit devices. A material-bonded connection, such as a weld, is also conceivable. This makes mounting the agitator particularly secure and straightforward.

[0035] According to a preferred embodiment, the locking element has two frame elements arranged parallel to each other, in particular leg-shaped, and two sliding bolts extending at right angles to them, connecting the frame elements, each sliding bolt comprising a roller for frictionless rolling on the second side surface of the guide mast.

[0036] The frame elements, which can be designed, for example, as preferably angled sheet metal legs, and the sliding bolts connecting the frame elements, create the bow shape of the locking element, which advantageously allows for easy and particularly convenient insertion into the guide element and secure locking. The rollers of the locking element, analogous to those of the guide element, enable comfortable and wear-reduced movement along the guide mast.

[0037] According to a preferred embodiment, each sliding bolt of the locking part has an insertion segment, in particular an insertion sleeve, at axially opposite end regions for tool-free insertion into the insertion receptacle of the guide part.

[0038] In particular, the (transverse) diameter of the sliding pins is smaller than that of the insertion sleeve. Preferably, the insertion sleeve is rotatable. The insertion segment or the insertion sleeve enables convenient and secure insertion and storage of the locking element in the guide element.

[0039] According to a preferred embodiment, the guide part and the locking part, in particular the upper corner areas of the guide sides facing the locking part and the upper end areas of the frame elements of the locking part, each have two insertion openings for a locking element, in particular locking bolts, which are aligned in the locked position.

[0040] The locking element advantageously secures the locking part in the closed position, thus reliably preventing unintentional release. The frame element is preferably an angled bracket plate, and the guide part has angled corners with the insertion opening. This ensures that the locking element does not obstruct the running or sliding mechanism of the guide device, and the locking element can advantageously be easily gripped and pulled out.

[0041] Preferably, in the service position, the insertion openings and the locking element are located above the liquid level of the medium being stirred. The guide device is therefore designed and / or geometrically configured so that the insertion openings and the locking element can be positioned above the liquid level in the service position. This advantageously makes the locking element particularly easy and convenient to access for releasing the closure.

[0042] According to a preferred embodiment, the insertion openings are spaced further apart from the guide mast than the rollers of the locking part, and preferably the locking element can be locked in the insertion openings without tools.

[0043] This design offers the advantage of particularly convenient insertion and removal of the locking element, as the rollers are out of the way and no tools are required. Specifically, the locking element can be secured in the insertion opening with a wing nut, a quick-release clamping device, or similar, allowing for tool-free removal. This essentially eliminates the risk of a tool falling into the medium or becoming contaminated. It also prevents potential corrosion.

[0044] The invention further relates to an agitator, in particular a submersible agitator, with a guide device that can be attached to or is attached to the agitator for guiding the agitator along a guide mast, wherein the agitator, when attached, is guided along the guide mast by means of the guide device, is displaceable, and can be locked in at least one definable operating position. The agitator is characterized in that the guide device is designed according to the invention as described above. The advantages already mentioned in this respect result.

[0045] The invention further relates to an arrangement comprising a guide mast and an agitator, in particular an immersion agitator, which is axially displaceable on the guide mast by means of a guide device. The arrangement is characterized in that the agitator is designed according to the invention as described above. The advantages already mentioned in this regard result. DRAWINGS

[0046] Further advantages become apparent from the accompanying drawing description. The drawings illustrate exemplary embodiments of the invention. The drawing, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently consider the features individually and combine them into meaningful further combinations.

[0047] They show: Fig. 1 A simplified perspective view of an advantageous arrangement with an agitator attached to a guide mast by means of an advantageous guide device, Fig. 2A and Fig. 2B each shows a perspective detail view of the guide device, and Fig. 3A to 3D each represent the arrangement for different locking positions.

[0048] In the figures, similar elements are numbered with the same reference symbols. The figures merely show examples and are not to be understood as limiting.

[0049] Fig. Figure 1 shows a simplified perspective view of an advantageous arrangement 10. In the present case, the arrangement 10 is formed from a stirrer 12 and a guide mast 14, wherein the stirrer 12 is axially displaceable on the guide mast 14 by means of an advantageous guide device 16.

[0050] The agitator 12 is designed as a submersible agitator and comprises a stirring propeller 18 for stirring or mixing a medium, in particular liquid manure, a motor 22 for generating drive force for the stirring propeller 18, and a gearbox 22 for transmitting the drive force generated by the motor 20 to the stirring propeller 18. In this respect, the stirring propeller 18 is coupled to the motor 20 by means of the gearbox 22. Furthermore, the agitator 12 has a lifting cable connection element 24, by means of which a lifting cable (not shown here for clarity) can be attached to or connected to the agitator 12 for the controlled raising and lowering of the agitator 12.By means of the lifting rope, a lifting force generated by a lifting device, in particular a winch, which is not shown here for the sake of clarity, can be transferred to the agitator 12, so that it can be raised in a controlled manner and lowered, in particular in conjunction with the acceleration due to gravity.

[0051] To enable precise lifting and lowering, the guide mast 14 and the guide device 16 are provided, wherein a cable pulley (not shown) can move the guide device 16 with agitator 12 along the guide mast 14. As mentioned previously, the agitator 12 can be axially guided on the guide mast 14 by means of the guide device 16 or in the Fig. The agitator 12 is fixed in the position shown in Figure 1, such that the lowering and raising motion of the agitator 12 is defined by the longitudinal axis of the guide mast 14 as the Z-direction. The guide device 16 thus serves as a link between the agitator 12 and the guide mast 14, wherein the agitator 12 is axially guided on the guide mast 14 via the guide device 16 and is axially displaceable in the Z-direction in the defined guidance direction.

[0052] In its fixed position, the agitator 12 can be moved along the guide mast 14 between an upper service area and a lower operating area of ​​the guide mast 14 by means of the guide device 16 in conjunction with the lifting cable. The guide device 16 is designed to be detachable or unlockable, so that the agitator 12 can be removed from the guide mast 14 as needed, for example, for maintenance purposes, and reattached to the guide mast 14 for intended operation after maintenance or similar work has been carried out. To enable particularly quick and easy removal of the agitator 12 from the guide mast 14, the guide device 16 is advantageously designed as a quick-release guide device 16.

[0053] Fig. 2A and Fig. 2B shows a perspective detail view of the quick-release guide device 16 in an unlocked or released state ( Fig. 2A) and in a closed position (2B).

[0054] For use as a quick-release guide device 16, the guide device 16 is advantageously designed in two parts. The quick-release guide device 16 comprises, as its first part, a guide part 26 which is essentially U-shaped, and as its second part, a locking part 28 which is essentially U-shaped.

[0055] The guide element 26 serves to, or is designed to, at least partially define the direction of movement of the agitator 12 along the guide mast 14 and thus provide a guiding function. The closure element 28, in turn, serves to, or is designed to, fix the guide element 26 axially displaceably on the guide mast 14.

[0056] For securing the guide part 26, it has at least one insertion recess 30 open on one side for the locking part 28, into which the locking part 28 can be inserted at least section by section. Fig. The locking position shown in 2B can be inserted or plugged in. In the locking position, the quick-release guide device 16 can be fixed to the guide mast 14 by the interaction of the guide part 26 and the locking part 28 inserted into the insertion receptacle 30.

[0057] As particularly in Fig. As can be clearly seen in Figure 2A, the U-shaped guide part 26 has two opposing, sheet-metal-shaped guide sides 32, which are connected on one side by two sliding bolts 50 and a circular-disc-shaped mounting area 34 for attaching the agitator 12 to the guide part 26 or the quick-release device 16. The mounting area 34 is located on an edge of the guide sides 32 facing the mounting area 34. Accordingly, the guide sides 32 have edge sides 36 opposite these edge sides, facing or associated with the locking part 28, in or on which the insertion recess 30 is formed.

[0058] In the present case, the insertion receptacle 30, located in the region of the edge 36, is divided into two parts and is slot-shaped. Each edge 36 has a slot- or groove-shaped upper insertion section 38 and a slot- or groove-shaped lower insertion section 40. As is particularly evident in the present case... Fig. As can be clearly seen in Figure 2A, the upper insertion section 38 is angled. This necessitates at least one change in the insertion direction when inserting the closure element into the upper insertion section 38, namely from horizontal to vertical, so that complete insertion into the upper insertion section 38 occurs in two stages. Due to the angled design, the closure element 28 can be positively locked in the closed position against the guide element 26 or in the insertion receptacle 30, since the angled shape mechanically prevents uncontrolled falling out of the upper insertion section 38 when fully inserted.

[0059] The guide sides 32 have inner guide surfaces 42 facing the guide mast 14. The mounting area 34 also has a sliding surface 44, likewise facing or associated with the guide mast 14, to which the guide sides 32 are oriented at right angles. The inner guide surface 42 facing or associated with the guide mast 14 and the sliding surface 44 allow the displacement of the quick-release guide device 16 in a cross-sectional plane of the guide mast 14 to be blocked or limited. More precisely, the displacement of the guide part 26 or the quick-release guide device 16 is limited by the inner guide surfaces 42 in the X-direction and by the sliding surface 44 in conjunction with the locking part 28 in the Y-direction, as shown in particular in Fig. 2B and Fig. 1 is clearly visible.

[0060] In the closed position, the guide part 26 is thus at least partially located on a first side surface of the guide mast 14, and the closing part 28 is at least partially located on a second side surface opposite this first side surface and extending in a plane parallel to the first side surface.

[0061] To enable particularly simple and secure attachment of the agitator 12 to the quick-release guide device 16 or to its mounting area 34, several fastening elements 46 are provided on the mounting area 34. These fastening elements 46 can be bolts, screws, or the like. Furthermore, an externally arranged cable holder 48 is provided on at least one of the guide sides 32 to ensure secure and non-interfering routing of the cables associated with the agitator 12 and / or the quick-release guide device 16.

[0062] To reduce frictional forces occurring during the axial displacement of the quick-release guide device 16 or the guide element 26 along the guide mast 14, the guide element 26 has two rollers 52 arranged on one of the sliding bolts 50 that orthogonally connect the guide sides 32, as well as several sliding elements 54 arranged on the inner guide surfaces 42. The rollers 52 and sliding elements 54 are made of a relatively soft material with a low coefficient of friction, so that friction is advantageously reduced during axial displacement and the associated sliding along the guide mast 14, thus effectively reducing any wear that may occur. In particular, the rollers 52 can be rotatably mounted relative to the sliding bolts 50, enabling particularly easy rolling.

[0063] As particularly in Fig. As can be clearly seen in Figure 2A, the locking element 28 has two parallel, leg-shaped frame elements 56, which are connected to each other by two sliding bolts 58 extending at right angles to them. This forms the aforementioned bow shape of the locking element 28. Each of the sliding bolts 58 has an insertion segment 60 at axially opposite end regions, designed in this case as an insertion sleeve, which serves for tool-free insertion into the insertion receptacle 30 or the slot-like insertion sections 38, 40 forming the insertion receptacle 30.

[0064] As previously mentioned, to secure the guide part 26 to the guide mast 14, the locking part 28 is inserted into the insertion receptacle 30. Specifically, the locking part 28 is first inserted into the lower insertion section 40 with its lower insertion segment 60. Once these are partially inserted, the upper insertion segments 60 are inserted horizontally into the upper insertion sections 38 until the corner created by the angled path is reached, necessitating a change in the insertion direction from horizontal to vertical. The insertion direction is then changed from horizontal to vertical, with the upper and lower insertion segments 60 moving synchronously vertically within the upper and lower insertion sections 38 and 40, respectively, until they reach the lower stop, thus fully inserting the locking part 28 and placing it in the locked position.

[0065] Due to the angled shape of the upper insertion sections 38, the locking element 28 is positively locked in the insertion receptacle 30 in the locked position, preventing it from accidentally falling out of the insertion receptacle 30. To unlock or release it from the locked position, the locking element 28 can be easily pulled out of the insertion receptacle 30 by vertical and horizontal movements, thus enabling quick and convenient release of the quick-release guide device 16.

[0066] It is provided that each of the sliding bolts 58 of the locking part 28, analogous to the sliding bolts 50 of the guide part 26, has a further roller 62, in particular rotatably mounted, for friction reduction, so that in the fixed state the quick-release guide device 16 can be axially displaced along the guide mast 14 with reduced friction.

[0067] To provide an additional locking option for the locking part 28 in the locked position, i.e., the locking of the locking part 28 to the guide part 26, the guide part 26 and the locking part 28 each have two insertion openings 64 for a locking element 66 that are aligned with each other in the locked position, as shown in particular in Fig. 2B is shown.

[0068] The insertion openings 64 are arranged or formed in the upper corner regions of the guide sides 32 facing the locking part 28, or in the upper end regions of the frame elements 56 of the locking part 28. The locking element 66 is designed as a locking bolt, which is preferably secured in the locking position inserted into the insertion openings 64 by means of nuts, clamping elements or similar.

[0069] Fig. Figures 3A to 3D each show a side view of the arrangement 10 at different times during a disassembly process in which the agitator 12, which is attached to the guide mast 14 by means of the quick-release guide device 16, is removed from the guide mast 14 by releasing the locking part 28 from the guide part 26.

[0070] At the in Fig. In the state shown in Figure 3A, the agitator 12 is fixed to the guide mast 14 and thus attached to the guide mast 14 by means of the quick-release guide device 16, which is in the closed position. The closing part 28 is in the closed position in which it is arranged in the insertion receptacle 30, positively locked, and additionally secured by means of the locking element 66.

[0071] Therefore, in the Fig. In the state shown in Figure 3A, the insertion segments 60 are inserted into the upper and lower insertion sections 38, 40, and the locking part 28 is securely locked or fixed in the closed position by the locking element 66. The agitator 12, in turn, is held by a lifting cable mounted on the lifting cable connection element 24.

[0072] To remove the agitator 12 in front of the guide mast 14, it is axially guided along the guide mast 14 and pulled upwards into the service position by means of the lifting cable and the quick-release guide device 16. As soon as the quick-release guide device 16 is accessible to a technician performing the disassembly, as described in Fig. As shown in Figure 3B, the locking element 66 is released and pulled out of the insertion openings 64, so that the locking part 28 is now only positively locked in the insertion receptacle 30.

[0073] Following this, as in Fig. Figure 3C shows that the bow-shaped closure part 28 is removed in its entirety, at least partially, from the insertion recess 30 by slight lifting. More precisely, the upper insertion segments 60 are completely removed from the angled upper insertion section 38 by vertical and then horizontal movements, and the lower insertion segments 60 are partially displaced vertically within the lower insertion section 40 in the direction of the opening of the lower insertion section 40.

[0074] After the upper part of the locking element 28 has been completely removed from the upper insertion section 38, the lower part of the locking element 28 can also be completely removed from the lower insertion section 40 by vertical movement, as shown in Fig. shown in 3D. The locking position is thus released, so that the guide part 26 is no longer fixed to the guide mast 14 by the locking part 28.

[0075] This allows the agitator 12 mounted on the guide part 26 to now be removed from the guide mast 14, in particular for the purpose of carrying out maintenance.

[0076] As soon as the agitator 12 is to resume its intended operation, it can be easily and quickly reattached to the guide mast 14 by inserting the closure part 28 into the insertion receptacle 30. Reference symbol list 10 Arrangement 12 Agitator 14 Guide mast 16 Guide device, quick-release guide device 18 stirring propellers 20 engine 22 gearboxes 24 Guide rope connection element 26 Guide section 28 Locking part 30 Insertion 32 Guide page 34 Mounting area 36 edge side 38 Upper insertion section 40 Lower insertion section 42 Guide surface 44 Sliding page 46 Fasteners 48 cable holder 50 sliding bolts of the guide part 52 roller 54 sliding elements 56 frame elements 58 sliding bolts of the locking part 60 Insert segment 62 Additional roller 64 insertion slots 66 Safety element

Claims

[1] Guide device (16) for an agitator (12), in particular a submersible agitator for industrial, biogas or agricultural use, for axially guiding the agitator (12) along a guide mast (14) between an upper service area of ​​the guide mast (14) and a lower operating area of ​​the guide mast (14), wherein the agitator (12) can be attached to the guide device (16) and the guide device (16) can be axially guided on the guide mast (14) and fixed radially and angularly to the guide mast (14), characterized bythat the guide device (16) is designed in two parts as a quick-release guide device (16) with a guide part (26) that can be assigned to or associated with the agitator (12), preferably having a substantially U-shaped form, for guiding the agitator (12) along the guide mast (14), and with a locking part (28) that can be assigned to or associated with the guide part (26) and has a substantially U-shaped form for axially displaceably securing the guide part (26) to the guide mast (14), wherein the guide part (26) has at least one, in particular partially angled, one-sided open insertion recess (30) for the locking part (28), into which the locking part (28) can be inserted, in particular inserted, and, in particular, positively locked, at least partially into a locking position for securing the guide part (26) to the guide mast (14).so that the quick-release guide device (16) is guided axially displaceably in the closed position by the interaction of the guide part (26) and the locking part (28) on the guide mast (14), in particular in the Z direction, and is fixed radially and angularly to the guide mast (14). [2] Guide device according to claim 1, characterized by, that in the closed position the displaceability of the quick-release guide device (16) in a cross-sectional plane of the guide mast (14) is lockable by two opposing, sheet-metal-shaped guide sides (32) of the guide part (26) in a first cross-sectional direction, in particular the X-direction, and by the locking part (28) and a sliding side (44) of the guide part (26) in a second cross-sectional direction extending in the cross-sectional plane, orthogonal to the first, in particular the Y-direction, wherein in the closed position the guide part (26), in particular the sliding side (44) of the guide part (26), is arranged at least partially on a first side surface of the guide mast (14) and the locking part (28) is arranged at least partially on a second side surface of the guide mast (14) opposite the first side surface and extending in a plane parallel to the first side surface,in particular, wherein a stirrer (12) can preferably be arranged on a mounting area (34) of the sliding side (44) of the guide part (26). [3] Guide device according to claim 2, characterized by , that each of the guide sides (32) has on an edge side (36) facing the closure part (28) at least one, in particular an upper and a lower, insertion receptacle (30) which are designed as slot-like insertion sections (38, 40), wherein preferably at least one upper insertion section (38) is angled, in particular angled by 90°. [4] Guide device according to one of the preceding claims 2 or 3, characterized by, that an inner guide surface (42) of the guide sides (32) facing the guide mast (14) comprises at least one, in particular at least one upper and one lower, sliding element (54), and that the sliding side (44) comprises at least one lower and one upper sliding bolt (50), wherein each sliding bolt (50) comprises a roller (52) for frictionless rolling on the first side surface of the guide mast (14). [5] Guide device according to any one of the preceding claims 2 to 4, characterized by, that the guide part (26) has a base-like, preferably disc-shaped, mounting area (34) for the agitator (12), to which the agitator (12) can be detachably attached, wherein preferably the mounting area (34) is formed on or in the plane of the sliding side (44), in particular on an outer surface of the sliding side (44) opposite the inner surface, wherein preferably the guide sides (32) are attached at right angles to the mounting area (34), and wherein preferably the mounting area (34) is extended further in an orthogonal direction to the axis of the guide mast (14) than the sliding side (44) and projects out of the sliding side (44). [6] Guide device according to one of the preceding claims, characterized by, that the locking part (28) has two frame elements (56) arranged parallel to each other, in particular leg-shaped, and two sliding bolts (58) extending at right angles to them and connecting the frame elements (56), wherein each sliding bolt (58) comprises a further roller (62) for frictionless rolling on the second side surface of the guide mast (14). [7] Guide device according to claim 6, characterized by , that each sliding bolt (58) has an insertion segment (60), in particular an insertion sleeve, at axially opposite end regions for insertion into the insertion receptacle (30) of the guide part (26) without tools. [8] Guide device according to one of the preceding claims, characterized by, that the guide part (26) and the closure part (28), in particular the upper corner areas of the guide sides (32) facing the closure part (28) and the upper end areas of the frame elements (56) of the closure part (28), each have two insertion openings (64) aligned in the closure position for a locking element (66), in particular locking bolts, wherein preferably in the service position the insertion openings (64) and the locking element (66) are located above a liquid level of a medium to be stirred. [9] Guide device according to claim 8, characterized by that the insertion openings (64) are spaced further apart from the guide mast (14) than the rollers (62) of the locking part (28), and preferably the locking element (66) can be locked in the insertion openings (64) without tools. [10] Agitator (12), in particular submersible agitator, with a guide device (16) that can be attached to or is attached to the agitator (12) for guiding the agitator (12) along a guide mast (14), wherein the agitator (12) in the attached state is guided and displaceable along the guide mast (14) by means of the guide device (16), characterized by a design of the guide device (16) according to one of claims 1 to 9. [11] Arrangement (10) comprising a guide mast (14) and an agitator (12), in particular a submersible agitator, which is axially displaceable on the guide mast (14) by means of a guide device (16), characterized by a design of the agitator (12) according to claim 10.

Images