EP3811014A1 - Mehrteiliges stützelement zur beabstandung von trägerelementen - Google Patents
Mehrteiliges stützelement zur beabstandung von trägerelementenInfo
- Publication number
- EP3811014A1 EP3811014A1 EP19732585.5A EP19732585A EP3811014A1 EP 3811014 A1 EP3811014 A1 EP 3811014A1 EP 19732585 A EP19732585 A EP 19732585A EP 3811014 A1 EP3811014 A1 EP 3811014A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support element
- pin
- underside
- opening
- support
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
- F27D5/0006—Composite supporting structures
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
Definitions
- the invention relates to a multi-part support element for spacing support elements arranged one above the other, in particular kiln furniture elements such as, for example, plate stand disks or fuel plates.
- These carrier elements are stacked manually or automatically to form joints or towers, with support elements (also called spacers) forming the distance between them.
- the products to be burned are brought into the free spaces created in the process. This loading with the products to be burned can in turn be done manually or automatically.
- Multi-part support elements for oven shelves are known from the prior art, for example from WO 2007/132276 A1.
- two-part screwed supports for automated furnace loading and unloading systems were developed and used in order to eliminate a major disadvantage of loosely attached, usually one-piece supports.
- the disadvantage of loosely placed, usually one-piece supports is that when adhesive effects occur between such a support and the shelf above it, for example in the form of a plate stand, the shelf support is regularly lifted out of its centering hole, in which it usually rests is fixed with a pin in the plane of the plate stand.
- the consequences are disruptions in the operational sequence and breakage on plate racks and items to be fired when unstacking and forming the plate racks again, as is customary in automated furnace loading and unloading systems.
- WO 2007/132276 A1 discloses multi-part support elements which comprise an upper part and a lower part, a pin with an external thread being provided on the upper part of the lower part, which is screwed to an internal thread provided on the upper part in an opening on the underside.
- the plate stand or the firing plate is firmly screwed in as a shelf between the upper and lower part.
- the disadvantage of this existing solution is that due to the material properties of the high-temperature-resistant ceramic materials used for the support and plate stand or firing plate, no secure non-positive connection can be achieved by applying a prestress in the threaded pin. The thermal load during use in the furnace often leads to the break of the threaded pin or the loosening of the screw connection.
- DE 10 2008 022 159 A1 discloses a multi-part support element for an oven shelf, comprising an upper part and a lower part which can be releasably connected axially by means of a rotary connection for the purpose of fixing a shelf between the upper part and the lower part.
- the rotary connection is formed by a pin provided on one part and a corresponding opening provided on the other part, into which the pin can be screwed.
- the rotary connection is designed such that it comes out of engagement again after a defined screwing in of the pin into the opening, so that the pin is locked in the opening with axial play.
- the lower part of the support element comprises a disk-shaped area and a pin projecting upward from the disk-shaped area, the disk-shaped area comprising on the upper side a planar support surface for the shelf to be fixed between the upper part and the lower part, which surrounds the pin in a ring.
- the multi-part support element disclosed in DE 10 2008 022 159 A1 prevents inadvertent lifting of the upper part caused by the upper lying surface of the upper part gluing to the lower part of the next higher support element or to the shelf arranged above it by the upper part being locked to the associated lower part arranged below it ,
- the multi-part support element disclosed in DE 10 2008 022 159 A1 in the stacked state of the furnace shelf, no excessive forces, in particular not the entire weight of the floors, supports and the firing material arranged above the pin, are derived via the sensitive pin, since the pins in the Operation is not rotationally connected to the opening surrounding it, but is guided in it with axial play, the weight forces being derived via the lying surfaces provided for this purpose on the upper and lower part of the support element.
- a disadvantage of the multi-part support element disclosed in DE 10 2008 022 159 A1 is that the shelf to be fixed between the upper part and lower part rests on the flat support surface of the disk-shaped area of the lower part, which is perpendicular to the pin and annularly surrounds the pin, ie the disk-shaped area of the lower part protrudes from the shelf to be fixed. This partially protruding the lower part from the The underside of the shelf is disadvantageous for the transport of the furnace control elements on roller conveyors in the automated stacking and unstacking of the furnace shelf elements.
- the object of the invention is to provide a multi-part support element for the spacing of support elements of an oven shelf, which overcomes the disadvantages mentioned above of the support elements known in the prior art, a trouble-free operation of the oven shelf in the oven and in the automated stacking and unstacking of the individual Ensures components and is characterized by its simple design and long service life even at the highest furnace temperatures.
- a multi-part support element according to the invention for spacing support elements comprises at least an upper part and a lower part, the upper part being releasably connectable to the lower part for the purpose of fixing a support element between the upper part and the lower part by means of a rotary connection, the rotary connection being provided by a provided on the lower part Pin and an opening provided on the upper part, into which the pin can be screwed, is formed and the rotary connection is designed such that it comes out of engagement again after defined screwing of the pin into the opening, so that the pin with axial play in the opening is locked.
- the lower part has a plate-shaped shoulder, the layer thickness of which decreases towards the edge.
- the lower part thus has a tapered edge area at the lower end.
- the reduction in the layer thickness of the plate-shaped attachment is achieved in the multi-part support element according to the invention in particular in that the top of the plate-shaped attachment is not a flat surface that extends perpendicular to the pin.
- the underside of the plate-shaped extension is essentially flat.
- the top of the plate-shaped extension is conical or essentially dome-shaped up to the pin.
- the underside of the plate-shaped attachment is essentially planar and the top of the plate-shaped attachment is conical or substantially dome-shaped up to the pin.
- the plate-shaped attachment is suitable for positively engaging in surface structures of the bore which are negatively applied in a support element to be fixed between the lower part and the upper part of a support element according to the invention.
- the plate-shaped extension can thus be countersunk in the carrier element to be fixed.
- the plate-shaped extension can have a recess on the underside, by means of which the lower part can be screwed into the upper part with the aid of a tool.
- the recess can be, for example, a hexagonal recess for an Allen key or a slot for a screwdriver.
- a pin in the sense of the present invention is understood to mean the element protruding from the lower part, which due to its geometric shape is suitable for being inserted into a corresponding opening provided on the upper part for the production and subsequent release of a rotary connection.
- axial play means that the pin can move freely in the axial direction within the opening over a certain length.
- the movement of the pin in the opposite direction to the insertion movement of the pin out of the opening is prevented by the locking brought about by the disengaged rotary connection.
- the support element according to the invention enables that, when the furnace shelf is stacked, no excessive forces, in particular not the entire weight of the floors, supports and the firing material arranged above the pin, are derived via the sensitive pin, since the pins do not operate are rotationally connected to the opening surrounding them, but are guided in the latter with axial play, the weight forces being derived via the lying surfaces provided for this purpose on the upper and lower part of the support element.
- the support element according to the invention is also simple in construction and can accordingly be manufactured in large numbers at low cost.
- a support element according to the invention can be made, for example, from a ceramic upper part produced by the injection molding process and a ceramic lower part produced by the injection molding process.
- Support elements according to the invention therefore offer the advantage over the support elements from the prior art that the transport of support elements fixed with support elements according to the invention by means of roller conveyors is easily possible.
- the rotary connection is designed as a screw connection, the pin provided on the lower part having an external thread and the opening provided on the upper part having an internal thread.
- the external thread of the lower part and the internal thread of the upper part have the same dimension.
- Bolted connections are technically easy to implement and can also be produced and detached again easily with automated stacking and unstacking of the oven shelves.
- a screw connection as a rotary connection between the pin and the opening is also particularly suitable because the external thread provided on the pin and the internal thread provided in the opening can be arranged without design problems in such a way that the rotary connection between the pin and the opening is first screwed into the opening is produced and by further screwing the pin into the opening, the thread disengages, as a result of which the pin is locked in the opening in the manner according to the invention with axial play.
- this can be facilitated in that the pin has an undercut as seen from its free end behind the external thread and that the opening has a corresponding undercut as seen from the underside of the upper part behind the internal thread.
- This is an axial guidance of the pin in the opening with axial play is possible without causing undesired friction of the pin, in particular of the internal thread, in the opening.
- the pin has a flattened area on at least one side in the area of the external thread, which area extends essentially parallel to the direction of extension of the pin.
- the flattened area preferably extends over the entire length of the external thread.
- the pin in the area of the external thread has a groove on at least one side, which extends essentially parallel to the direction of extension of the pin.
- the groove preferably extends over the entire length of the external thread
- the presence of a flattened area or a groove in the area of the external thread on at least one side offers the advantage that dirt accumulates in the flattened area or the groove and thus does not strain the threads.
- the pin In the area of the external thread, the pin preferably has a flattened area or a groove on two opposite sides, the flattened area or the groove in each case extending essentially parallel to the direction of extension of the pin.
- the thread is divided, so to speak, into two sections, between each of which an area is arranged on which no thread is arranged.
- the pin can also have a flattened area or a groove on more than two sides, the flattened area or the groove in each case extending essentially parallel to the direction of extension of the pin.
- the thread can thus also be divided into more than two sections.
- the rotary connection is designed as a bayonet connection, with at least one projection provided on the pin engaging in at least one slot-shaped guide provided in the opening of the upper part in such a way that a plug-and-turn connection can be produced, the slot-shaped guide runs in such a way that when the pin is inserted into the opening, the projection guided in the guide leads to the latter Guide to disengage the rotary joint after inserting the pin into the opening, so that the pin is then locked with axial play in the opening.
- the pin seen from its free end, has an undercut behind the region in which the at least one projection is arranged, and the opening, seen from the underside of the upper part, behind the region which has at least one slot-shaped guide , has a corresponding undercut.
- the slot-shaped guide can run axially or inclined to the axial direction and can be shaped, for example, by a kink or by a labyrinthine course.
- the plug-turn connection effectively prevents the pin from being accidentally removed from the opening.
- the upper part has at its lower axial end a widened edge region with a seat surface with which it rests on the support element which can be fixed between the upper part and lower part of the support element. This ensures a particularly secure fit of the upper part on the support element fixed between the upper and lower part, the surface load remaining within limits.
- the upper part has a centering collar on its underside, the centering collar being arranged directly adjacent to the opening.
- This centering collar is suitable for being arranged in a bore of a support element to be fixed between the lower part and the upper part of the support element. The centering collar prevents the upper part from moving laterally.
- lateral displacement of the upper part can also be prevented by dimensioning the undercut of the upper part when the rotary connection is designed as a screw connection such that the external thread of the lower part lies essentially flush against the inner cylindrical lateral surface of the upper part or when the rotary connection is formed as a bayonet connection the undercut of the upper part is dimensioned such that the at least one projection of the lower part lies essentially flush against the inner cylindrical jacket surface of the upper part.
- the circular ring surface which has a support element according to the invention on the top, is widened relative to the cylindrical middle section of the top part.
- the support element in addition to the upper part and the lower part, additionally comprises a tube support which is placed over the upper part.
- the inner diameter of the pipe support preferably corresponds essentially to the outer diameter of the upper part.
- the upper part thus represents a guide cylinder for the pipe support.
- the distance between the support elements of an oven shelf can be determined via the length of the pipe support. This offers the advantage that in order to vary the distance between the support elements of an oven shelf, the support element does not have to be screwed apart in order to replace the upper part, but only the tube support has to be replaced.
- the invention also relates to an oven shelf element at least comprising a support element with at least one bore and at least one multi-part support element according to the invention.
- the carrier element has an underside and an upper side opposite the underside, the carrier element being fixed between the upper part and the lower part of the at least one multi-part support element.
- the bore is enlarged towards the bottom, i.e. the diameter of the hole increases from the top to the bottom.
- the surface structures of the bore are preferably arranged negatively to the surface structure of the top of the plate-shaped extension.
- the plate-shaped extension of the lower part of the support element is received in the bore such that the support element does not protrude from the support element on the underside of the support element, i.e. the plate-shaped extension is sunk in the support element to be fixed.
- the invention relates to an oven shelf with a lower support element and at least one upper support element, the lower support element being fixed in at least one support element according to the invention and the at least one upper support element being fixed in at least one support element according to the invention between the upper part and lower part and the underside of the lower part of the at least one support element which fixes the upper support element, or the underside of the upper support element rests on the upper part or the tube support of the support element which fixes the lower support element.
- All support elements ie the lower support element and one or more upper support elements arranged one above the other, are preferably supported by at least one, preferably three or four, multi-part support elements according to the invention.
- the carrier elements can each be plate-shaped or as a plate stand.
- FIG. 1 is a perspective view of an embodiment of an upper part of a support element according to the invention
- FIG. 2 shows a side view of a further embodiment of an upper part of a support element according to the invention
- FIG. 3 shows a cross section of the upper part from FIG. 2 along the section line A-A
- FIG. 4 shows a perspective view of a further embodiment of an upper part of a support element according to the invention
- FIG. 5 is a perspective view of an embodiment of a lower part of a support element according to the invention.
- FIG. 6 shows a side view of a further embodiment of a lower part of a support element according to the invention
- FIG. 7 shows a cross section of the lower part from FIG. 6 along the section line A-A
- Fig. 8 is a side view of an embodiment of an inventive
- FIG. 9 shows a section of a cross section of the oven shelf element according to the invention from FIG. 8 along the section line A-A,
- FIG. 10 shows a section of a cross section of a further embodiment of an oven shelf element according to the invention
- FIG. 11 shows a section of a cross section of a further embodiment of an oven shelf element according to the invention
- FIG. 12 shows a side view of an embodiment of an oven shelf according to the invention
- FIG. 13 shows a cross section of a section of the oven shelf from FIG. 12 along the
- Fig. 16 is a perspective view of an embodiment of an inventive
- FIG. 17 shows a perspective bottom view of a section of the oven shelf element from
- Fig. 18 is a perspective view of an embodiment of an inventive
- FIG. 19 is a perspective view of a further embodiment of an oven shelf according to the invention.
- FIG. 20 is a perspective view of a section of the oven shelf of FIG. 19,
- FIG. 21 is a perspective view of a further embodiment of an upper part of a support element according to the invention.
- FIG. 22 is a perspective view of a section of the upper part from FIG. 21,
- FIG. 23 shows a cross section of the upper part from FIG. 21,
- FIG. 24 is a perspective view of a further embodiment of a lower part of a support element according to the invention.
- FIG. 25 shows a section of a cross section of a further embodiment of an oven shelf element according to the invention.
- 26 shows a perspective view of a further embodiment of a lower part of a support element according to the invention.
- FIG. 1 shows a perspective view of an embodiment of an upper part 20 of a support element 10 according to the invention.
- the upper part 20 shown in FIG. 1 is designed as a hollow body.
- the continuous opening 21 has an internal thread 22, ie an internal thread 22 is arranged in sections on the inner cylindrical lateral surface 27 (not provided with a reference symbol in FIG. 1).
- the internal thread 22 is not arranged directly adjacent to the underside 28 of the upper part 20.
- the internal thread 22 it is also possible for the internal thread 22 to be arranged directly adjacent to the underside 28.
- the opening 21 has an area with an enlarged diameter (undercut) 23 (not shown in FIG. 1) behind the internal thread 22.
- FIG. 1 shows a perspective view of an embodiment of an upper part 20 of a support element 10 according to the invention.
- the upper part 20 shown in FIG. 1 is designed as a hollow body.
- the continuous opening 21 has an internal thread 22, ie an internal thread 22 is arranged in sections on the inner cylindrical lateral surface 27 (not provided with
- the upper part 20 has at its lower end a widened edge region 24 with a seat surface 25 on the underside, which is suitable for this on a shelf 40 to be fixed between an upper part 20 and a lower part 30 to rest.
- the upper part 20 also comprises an annular circular surface 26a on the top, on which the lower part 30 of the support element 10 arranged next up can be arranged in the assembled state of an oven shelf.
- the annular surface 26a on the upper side 26 of the upper part 20 is widened relative to the cylindrical middle section of the upper part 20.
- FIG. 2 shows a side view of a further embodiment of an upper part 20 of a support element 10 according to the invention.
- the embodiment shown in FIG. 2 differs from the embodiment shown in FIG. 1 in that the circular ring surface 26a on the upper side 26 of the upper part 20 is not widened compared to the cylindrical middle section of the upper part 20 and in the widened edge region 24 that of the lower one Seat surface 25 opposite surface is formed parallel to the seat surface 25.
- the lower part 20 has a centering collar 29 on the underside 28, which is arranged directly adjacent to the opening 21. This centering collar 29 is suitable to be received in the bore 41 of a shelf 40 to be fixed between the upper part 20 and the lower part 30 and thus to secure the upper part 20 against lateral slipping.
- FIG. 3 shows a cross section of the upper part 20 from FIG. 2 along the section line A-A. It can be seen from FIG. 3 that the opening 21, seen from the underside 28 of the upper part 20, has an area with an enlarged diameter (undercut) 23 behind the internal thread 22.
- the internal thread 22 is not arranged directly adjacent to the underside 28 of the upper part 20. However, it is also possible for the internal thread 22 to be arranged directly adjacent to the underside 28.
- FIG. 4 shows a perspective view of a further embodiment of an upper part 20 of a support element 10 according to the invention.
- This embodiment differs from the embodiment shown in FIG. 1 in that the circular ring surface 26 on the upper side 26a of the upper part 20 is not widened compared to the cylindrical middle section of the upper part 20 and the upper part 20 also has no widened edge region 24 on the underside 28 ,
- FIG. 5 shows a perspective view of an embodiment of a lower part 30 of a support element 10 according to the invention.
- the lower part 30 comprises one centrally arranged pin 31 and a plate-shaped extension 34, the layer thickness decreases towards the edge.
- the underside 36 of the plate-shaped extension is flat and the top 37 is conical up to the pin 31.
- the pin 31 has an external thread 32 immediately adjacent to its free end.
- the external thread 32 is designed such that it can be screwed into the internal thread 22 of the upper part 20 shown in FIGS. 1 to 4. Below the external thread 32, the pin 31 has an undercut 33 with a reduced diameter compared to the thread core.
- FIG. 6 shows a side view of a further embodiment of a lower part 30 of a support element 10 according to the invention.
- the lower part 30 shown in FIG. 6 essentially corresponds to the lower part 30 shown in FIG. 5, so that only the differences are discussed below.
- the underside 36 of the plate-shaped attachment is flat and its top 37 is essentially dome-shaped up to the pin 31.
- FIG. 7 shows a cross section of the lower part from FIG. 6 along the section line A-A.
- the oven shelf element 50 comprises a support element 40 and two support elements 10 according to the invention, only the upper parts 20 of the support elements 10 being visible, since the lower parts 30 are covered by the upper parts 20 and the like Carrier element 40 are completely covered.
- the upper parts 20 are designed like the upper part 20 shown in FIG. 1.
- FIG. 9 shows a section of a cross section of an embodiment of the oven shelf element 50 according to the invention from FIG. 8 along the section line AA.
- the detail shows the cross section through an upper part 20, a lower part 30 and a support element 40 fixed in between.
- the upper part 20 is an upper part 20 as in FIG. 1 and the lower part 30 is a lower part 30 as in FIG Fig. 5 shown.
- the carrier element 40 fixed between the lower part 30 and the upper part 20 has a bore 41 which is widened towards the underside 43 of the carrier element 40.
- the bore extension 42 corresponds to a negative surface structure analogous to the conical top 37 of the plate-shaped extension 34.
- the plate-shaped extension 34 of the lower part 30 is essentially flush with the sections Bore extension 42 of the carrier element 40 is received, ie it is sunk in the carrier element 40, and the underside 36 of the lower part 30 does not protrude from the bore 41 on the underside 43 of the carrier element 40.
- the plate-shaped extension 34 has a hexagonal recess 38 for an Allen key.
- Both the upper part 20 and the lower part 30 of the support element 10 as well as the carrier element 40 which in the present case is designed as a simple fuel plate, are made of highly temperature-resistant but also brittle ceramic material, such as. B. silicon carbide or mullite.
- the pin 31 of the lower part 30 is locked in the opening 21 of the upper part 20 with axial play in the manner according to the invention, so that additional support elements 40, supporting elements 10 and firing material (not shown) rest on the upper part 20 Weight forces caused do not load the pin 31, but are derived via the surfaces 26a, 25, 35 and 36 of the upper part 20 and the lower part 30 of the support element 10 provided for this purpose.
- FIG. 10 shows a section of a cross section of a further embodiment of an oven shelf element 50 according to the invention.
- the detail shows the cross section through an upper part 20, a lower part 30 and a carrier element 40 fixed in between.
- the upper part 20 is an upper part 20 as in FIGS. 2 and 3 and the lower part 30 is a Bottom 30 as shown in Figs. 6 and 7.
- the carrier element 40 fixed between the lower part 30 and the upper part 20 has a bore 41 which is widened towards the underside 43 of the carrier element 40.
- the bore enlargement 42 corresponds to a negative surface structure which is analogous to the essentially spherical top 37 of the plate-shaped extension 34.
- the plate-shaped extension 34 of the lower part 30 is received in sections essentially flush in the bore extension 42 of the carrier element 40, i.e. it is countersunk in the carrier element 40, and the underside 36 of the lower part 30 does not protrude from the bore 41 on the underside 43 of the carrier element 40.
- the upper side 37 thus represents the support surface 35 for the support element 40 to be fixed. It can also be seen from FIG. 10 that the centering collar 29 of the upper part 20 is received in the bore 41 of the support element 40, so that the upper part 20 slips sideways is prevented.
- Both the upper part 20 and the lower part 30 of the support element 10 and the carrier element 40 which is designed here as a simple fuel plate, are made of high temperature-resistant, but also brittle ceramic material, such as B. silicon carbide or mullite.
- the pin 31 of the lower part 30 is locked in the opening 21 of the upper part 20 in the manner according to the invention with axial play, so that on the upper part 20 by additional support elements 40, supporting elements 10 and firing material (not shown) ) caused weight forces do not load the pin 31, but are derived via the surfaces 26a, 25, 35 and 36 of the upper part 20 and the lower part 30 of the support element 10 provided for this purpose.
- FIG. 1 1 shows a section of a cross section of a further embodiment of an oven shelf element 50 according to the invention.
- the oven shelf element 50 differs from the oven shelf element 50, the cross section of which is shown in detail in FIG. 10 only in that the upper part 20 is the upper part 20 shown in FIG. 4 acts and the furnace shelf element 50 additionally comprises a tube support 70 which is inserted over the upper part 20 and protrudes beyond the upper part 20.
- the inner diameter of the pipe support 70 corresponds essentially to the outer diameter of the upper part 20.
- FIG. 12 shows a side view of an embodiment of an oven shelf 60 according to the invention.
- the oven shelf 60 comprises two support elements 40, which are each fixed between the upper part 20 and the lower part 30 by two support elements 10.
- the upper parts 20 are upper parts 20 according to the embodiment shown in FIGS. 2 and 3.
- the lower parts 30 are designed like the lower parts 30 in FIG. 6.
- the oven shelf 60 shown in FIG. 12 thus comprises two oven shelf elements 50, as are shown in cross section in FIG. 10.
- FIG. 13 shows a cross section of a section of the oven shelf 60 from FIG. 12 along the section line AA.
- the pin 31 of the lower part 30 is locked in the opening 21 of the upper part 20 with axial play in the manner according to the invention, so that additional support elements 40, supporting elements 10, rest on the upper part 20 as well as firing material (not shown) caused weight forces do not load the pin 31, but are derived via the surfaces 26a, 25, 35 and 36 of the upper part 20 and the lower part 30 of the supporting element 10 provided for this purpose.
- the underside 36 of the lower part 30, which fixes the upper support element 40 lies on the circular ring surface 26a of the upper part 20, which fixes the lower support element 40.
- the oven shelf 60 comprises two support elements 40, which are each fixed by a support element 10 between the upper part 20 and the lower part 30.
- the upper parts 20 are upper parts 20 according to the embodiment shown in FIG. 1.
- the lower parts 30 are designed like the lower parts 30 in FIG. 5.
- the oven shelf 60 shown in FIG. 14 thus comprises two oven shelf elements 50, as are shown in cross section in FIG. 9. As can be seen in FIG.
- the pin 31 of the lower part 30 is locked in the opening 21 of the upper part 20 with axial play in the manner according to the invention, so that additional support elements 40, supporting elements 10, rest on the upper part 20 as well as firing material (not shown) caused weight forces do not load the pin 31, but are derived via the surfaces 26a, 25, 35 and 36 of the upper part 20 and the lower part 30 of the supporting element 10 provided for this purpose.
- the underside 43 of the upper carrier element 40 lies in sections on the circular ring surface 26a of the upper part 20, which fixes the lower carrier element 40.
- the oven shelf 60 comprises two support elements 40, which are each fixed by a support element 10 between the upper part 20 and the lower part 30.
- the upper parts 20 are upper parts 20 according to the embodiment shown in FIG. 4.
- the lower parts 30 are designed like the lower part 30 in FIG. 5.
- the plate-shaped extension 34 has a hexagonal recess 38 for an Allen key.
- a pipe support 70 is placed over each of the upper parts 20. As can be seen from FIG.
- the pin 31 of the lower part 30 is locked in the opening 21 of the upper part 20 in the manner according to the invention with axial play, so that additional support elements 40, supporting elements 10, rest on the upper part 20 as well as firing material (not shown) caused weight forces do not load the pin 31, but are derived via the surfaces 71, 25, 35 and 36 of the pipe support 71 and the upper part 20 and the lower part 30 of the supporting element 10 provided for this purpose.
- the inner diameters of the pipe supports 70 essentially correspond to the outer diameters of the upper parts 20. Die In the embodiment shown in FIG. 15, the underside 43 of the upper support element 40 lies in sections on the annular surface 71 of the pipe support 70, which is placed over the upper part 20, which fixes the lower support element 40.
- the furnace shelf element 50 comprises a carrier element 40, which is fixed between the upper parts 20 and the lower parts 30 of three support elements 10.
- the upper parts 20 are formed in the embodiment shown as shown in FIG. 1.
- FIG. 17 shows a perspective bottom view of a section of the oven shelf element from FIG. 16. It can be seen from FIG. 17 that the underside 36 of the lower part 30 on the underside 43 of the carrier element 40 does not protrude from the carrier element 40.
- FIG. 18 shows a perspective view of an embodiment of an oven shelf 60 according to the invention.
- the oven shelf 60 shown comprises two oven shelf elements 50 arranged one above the other according to the embodiment shown in FIG. 16.
- FIG. 19 shows a perspective view of a further embodiment of an oven shelf 60 according to the invention.
- the furnace shelf 60 shown comprises two support elements 40, each of which is fixed in four support elements 10, the support elements 10 each comprising an upper part 20 according to the embodiment shown in FIG. 4 with a pipe support 70 placed thereover, and a lower part 30 according to that in FIG. 5 shown embodiment include.
- FIG. 20 shows a perspective bottom view of a section of the oven shelf from FIG. 19. It can be seen from FIG. 20 that the underside 36 of the lower part 30 on the underside 43 of the carrier element 40 does not protrude from the carrier element 40. In addition, it can be seen in FIG. 20 that the lower part 30 has a hexagonal recess 38 for an Allen key on the underside 36.
- the upper part 20 and the lower part 30 of each support element 10 are preferably connected as follows:
- the upper part 20 is placed on the shelf 40 to be fixed between the upper part 20 and the lower part 30, so that the opening 21 on the underside of the upper part 20 is aligned with a corresponding bore 41 in the carrier element 40.
- the lower part 30 of the support element 10 is guided through the bore 41 and screwed with its external thread 32 into the corresponding internal thread 22 in the opening 21 of the upper part 20, whereby a rotary connection between the upper part 20 and the lower part 30 is produced. It can be screwed in manually or mechanically.
- the pin 31 is now screwed further into the opening 21 of the upper part 20 until the rotary connection disengages, so that the pin 31 can no longer be pulled down out of the opening 21, that is to say is thus locked in it, and at the same time axial play in the opening 21 is locked.
- the upper part 20, the lower part 30 and the bore 41 together with the bore extension 42 of the support element 40 are dimensioned such that when the rotary connection comes out of engagement again, the plate-shaped extension 34 of the lower part is received essentially flush in the bore extension 41 such that the The underside 36 of the lower part 30 does not protrude from the underside 43 of the carrier element 40.
- the 21 shows a perspective view of an embodiment of an upper part 20 of a support element 10 according to the invention.
- the upper part 20 shown in FIG. 21 is designed as a hollow body.
- the through opening 21 has four slot-shaped guides 81 in this embodiment.
- the section with the four slot-shaped guides 81 is not arranged directly adjacent to the underside 28 of the upper part 20. However, it is also possible for this to be arranged directly adjacent to the underside 28.
- the opening 21 has an area with an enlarged diameter (undercut) 23 (not shown in FIG. 21) behind the section with the four slot-shaped guides 81.
- FIG. 21 shows a perspective view of an embodiment of an upper part 20 of a support element 10 according to the invention.
- the upper part 20 shown in FIG. 21 is designed as a hollow body.
- the through opening 21 has four slot-shaped guides 81 in this embodiment.
- the section with the four slot-shaped guides 81 is not arranged directly adjacent to the underside 28 of the upper part 20. However, it is also possible
- the upper part 20 has at its lower end a widened edge area 24 with an underside seat surface 25, which is suitable for being fixed on a shelf 40 to be fixed between an upper part 20 and a lower part 30.
- the upper part 20 also comprises an annular circular surface 26a on the top, on which the lower part 30 of the support element 10 arranged next up can be arranged in the assembled state of an oven shelf.
- the annular surface 26a on the upper side 26 of the upper part 20 is widened relative to the cylindrical middle section of the upper part 20.
- FIG. 22 shows a perspective view of a section of the upper part from FIG. 21.
- FIG. 23 shows a cross section of the upper part 20 from FIG. 21 along a central section line from the upper side 26 to the lower side 28. It can be seen from FIG. 23 that the opening 21 seen from the lower side 28 of the upper part 20 behind the section with the four slot-shaped guides 81 has an area with an enlarged diameter (undercut) 23. In the embodiment shown in FIG. 23, the section with the four slot-shaped guides 81 is not arranged immediately adjacent to the underside 28 of the upper part 20. However, it is also possible for this to be arranged directly adjacent to the underside 28.
- the lower part 30 comprises a centrally arranged pin 31 and a plate-shaped extension 34, the layer thickness of which decreases towards the edge.
- the underside 36 of the plate-shaped extension is flat and its top 37 is conical up to the pin 31.
- the pin 31 has projections 82 immediately adjacent to its free end.
- the projections 82 are designed such that they can be inserted into the slot-shaped guides 81 of the upper part 20 shown in FIGS. 21 to 23.
- the pin 31 has an undercut 33 with a reduced diameter compared to the section with the projections 82.
- the lower part 30 has a hexagonal recess 38 for an Allen key on the underside 36.
- the oven shelf 60 of which the cross section of a detail is shown in the figure, comprises two support elements 40, each between the upper part 20 and the lower part 30 are fixed by a support element 10.
- the upper parts 20 are upper parts 20 according to the embodiment shown in FIGS. 21 to 23.
- the lower parts 30 are designed like the lower part 30 in FIG. 24.
- the carrier element 40 fixed between the lower part 30 and the upper part 20 has a bore 41 which is widened towards the underside 43 of the carrier element 40.
- the bore extension 42 corresponds to a negative surface structure analogous to the conical top 37 of the plate-shaped extension 34.
- the plate-shaped extension 34 of the lower part 30 is received in sections essentially flush in the bore extension 42 of the carrier element 40, ie it is countersunk in the carrier element 40, and the underside 36 of the lower part 30 does not protrude from the bore 41 on the underside 43 of the carrier element 40 out.
- the plate-shaped extension 34 has a hexagonal recess for an Allen key. As can be seen in FIG.
- FIG. 26 shows a perspective view of a further embodiment of a lower part 30 of a support element 10 according to the invention.
- the embodiment shown in FIG. 26 differs from the embodiment of a lower part shown in FIG. 5 only in that the pin 31 in the area of the external thread 32 has a flattened area 39 on two opposite sides. The thread is cut in this area.
- the flattened areas 39 extend parallel to the direction of extension E of the pin 31 and, in the embodiment shown in FIG. 26, extend over the entire length of the external thread 32.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Furnace Charging Or Discharging (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Connection Of Plates (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018114817.8A DE102018114817A1 (de) | 2018-06-20 | 2018-06-20 | Mehrteiliges Stützelement zur Beabstandung von Trägerelementen |
PCT/EP2019/065977 WO2019243309A1 (de) | 2018-06-20 | 2019-06-18 | Mehrteiliges stützelement zur beabstandung von trägerelementen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3811014A1 true EP3811014A1 (de) | 2021-04-28 |
Family
ID=67001772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19732585.5A Pending EP3811014A1 (de) | 2018-06-20 | 2019-06-18 | Mehrteiliges stützelement zur beabstandung von trägerelementen |
Country Status (7)
Country | Link |
---|---|
US (1) | US11280549B2 (de) |
EP (1) | EP3811014A1 (de) |
JP (1) | JP7155299B2 (de) |
KR (1) | KR102417160B1 (de) |
CN (1) | CN112639384B (de) |
DE (1) | DE102018114817A1 (de) |
WO (1) | WO2019243309A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022124350A1 (de) * | 2022-09-22 | 2024-03-28 | Onejoon Gmbh | Stützeinheit für eine Tragplatte zum Aufbau eines Etagengestells, Etageneinheit mit solchen Stützeinheiten und Etagengestell für die Wärmebehandlung von Werkstücken |
DE102023102149B3 (de) | 2023-01-30 | 2024-06-20 | Saint-Gobain Industriekeramik Rödental GmbH | Mehrteiliges keramisches Stützelement |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1860374A (en) * | 1928-02-06 | 1932-05-31 | New Castle Refractories Compan | Device for supporting tableware in alpha kiln |
US2881502A (en) * | 1955-11-10 | 1959-04-14 | Dopera Rudolph | Adjustable kiln setter |
US3660886A (en) * | 1969-02-20 | 1972-05-09 | Ginori Ceramica Ital Spa | Method of making firing setters for tiles and other ceramic articles |
DE2817887C2 (de) * | 1978-04-24 | 1983-11-17 | Annawerk Keramische Betriebe GmbH, 8633 Rödental | Brennhilfsmittel |
DE2818751B2 (de) * | 1978-04-28 | 1981-07-09 | Karrena GmbH, 4000 Düsseldorf | Decken- und Wandkonstruktion für Feuerungsräume |
JPH0623821B2 (ja) * | 1983-09-02 | 1994-03-30 | ミノルタカメラ株式会社 | バヨネットマウント装置とこの装置を用いる光学機器 |
JPH0668438B2 (ja) * | 1989-03-17 | 1994-08-31 | 日本碍子株式会社 | 長大陶磁器成形品の焼成方法 |
JP2591386Y2 (ja) * | 1992-07-07 | 1999-03-03 | 株式会社ヤマザキ電機 | 積載型熱処理用トレイ |
DE4312742C1 (de) * | 1993-04-20 | 1994-11-17 | Sternplastic Hellstern Gmbh & | Brennhilfsmittelsystem für die Keramikindustrie |
KR970058990U (ko) * | 1996-04-15 | 1997-11-10 | 민병일 | 저하중용 급속 체결볼트 |
JP2001085347A (ja) * | 1999-09-16 | 2001-03-30 | Toshiba Ceramics Co Ltd | 熱処理用ウエハ支持ボート |
HU227740B1 (en) * | 2006-05-11 | 2012-02-28 | Imerys Magyarorszag Tuezalloanyaggyarto Korlatolt Feleloessegue Tarsasag | Ceramic support for kilning of ceramic bodies |
DE102007012885A1 (de) * | 2007-03-17 | 2008-09-18 | Eisenmann Anlagenbau Gmbh & Co. Kg | Sintergestell mit wenigstens einem Ablageelement |
DE102008022159B4 (de) | 2008-05-05 | 2010-05-06 | Saint-Gobain Industriekeramik Rödental GmbH | Mehrteiliges Stützelement und Ofenregal |
JP2011094882A (ja) * | 2009-10-29 | 2011-05-12 | Taiko Rozai Kk | 支持具 |
DE202014100848U1 (de) * | 2014-02-25 | 2014-05-12 | Imerys Kiln Furniture Hungary | Brennkapselanordnung |
JP6200404B2 (ja) * | 2014-11-18 | 2017-09-20 | 日本碍子株式会社 | ハニカム成形体焼成用生トチ、及びハニカム成形体の焼成方法 |
JP6378155B2 (ja) * | 2015-10-14 | 2018-08-22 | 日本碍子株式会社 | 熱処理用棚 |
CN108120305A (zh) * | 2016-11-28 | 2018-06-05 | 登封市宏远电热元件有限公司 | 一种防裂纹用辊棒多层放置架 |
-
2018
- 2018-06-20 DE DE102018114817.8A patent/DE102018114817A1/de active Pending
-
2019
- 2019-06-18 US US17/254,090 patent/US11280549B2/en active Active
- 2019-06-18 KR KR1020217001665A patent/KR102417160B1/ko active IP Right Grant
- 2019-06-18 CN CN201980041010.0A patent/CN112639384B/zh active Active
- 2019-06-18 WO PCT/EP2019/065977 patent/WO2019243309A1/de unknown
- 2019-06-18 EP EP19732585.5A patent/EP3811014A1/de active Pending
- 2019-06-18 JP JP2020570760A patent/JP7155299B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
CN112639384A (zh) | 2021-04-09 |
US20210270531A1 (en) | 2021-09-02 |
US11280549B2 (en) | 2022-03-22 |
DE102018114817A1 (de) | 2019-12-24 |
JP2021527795A (ja) | 2021-10-14 |
CN112639384B (zh) | 2022-11-15 |
JP7155299B2 (ja) | 2022-10-18 |
KR20210021390A (ko) | 2021-02-25 |
WO2019243309A1 (de) | 2019-12-26 |
KR102417160B1 (ko) | 2022-07-06 |
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