DE219099C - - Google Patents
Info
- Publication number
- DE219099C DE219099C DENDAT219099D DE219099DA DE219099C DE 219099 C DE219099 C DE 219099C DE NDAT219099 D DENDAT219099 D DE NDAT219099D DE 219099D A DE219099D A DE 219099DA DE 219099 C DE219099 C DE 219099C
- Authority
- DE
- Germany
- Prior art keywords
- reinforced concrete
- stone
- concrete core
- dovetail
- stones
- 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.)
- Active
Links
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001131 Pulp (paper) Polymers 0.000 claims 1
- 239000004567 concrete Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Schleifsteine zur Erzeugung von Holz-' schliff, haben in neuerer Zeit vielfach infolge Erhöhung der geforderten Leistung eine bedeutend vergrößerte Beanspruchung auszuhalten, und sind die Arbeitsflächen der Steine oft über ΐ,οο m breit, während in früheren Jahren nur etwa 0,50 m breite Steine verwendet wurden. Die Beanspruchung dieser Steine mit breiten Arbeitsflächen ist ebenfalls wesentlich gesteigert worden, und werden in den neuesten Großkraftschleifereieri zum Betriebe eines Steines von 1370 mm Durchmesser und 1100 mm Breite der Arbeitsfläche bis zu 800 PS. verwendet. The grindstones for the production of wood 'grinding, have in recent times often as a result Increase in the required performance to withstand a significantly increased load, and the working surfaces of the stones are often about ΐ, οο m wide, while in earlier years only about 0.50 m wide stones were used. The stress on these stones with wide work surfaces has also been increased significantly, and are used in the latest Large power grinder for the operation of a stone with a diameter of 1370 mm and 1100 mm Working surface width up to 800 hp. used.
Infolge von derartig großen Belastungen sind wiederholt Schleifsteine zersprungen, und konnte man in solchen Fällen meist beobachten, daß die zur Befestigung der Steine auf der Welle angebrachten seitlichen Rosetten nach der Mitte der Arbeitsfläche zu nicht genügten. Bei zerspringenden Schleifsteinen lösen sich Steinstücke in der Mitte der Arbeitsfläche in den meisten Fällen bis zur Schleiferwelle, weil von innen heraus kein genügender Widerstand gegen die während des Betriebes auftretenden Fliehkräfte vorhanden ist, während seitlich an den Rosetten durch dieselben ein größerer Halt gewährt wird.As a result of such great loads, grinding stones have repeatedly cracked, and In such cases one could mostly observe that the fastening of the stones was carried out Side rosettes attached to the shaft towards the middle of the work surface were not sufficient. If the whetstones break, pieces of stone loosen in the middle of the work surface in most cases up to the grinder shaft, because from the inside it is not a sufficient one Resistance to the centrifugal forces occurring during operation is present while on the side of the rosettes they are granted a greater hold.
Nach vorliegender Erfindung soll nun eine verbesserte, sicherere Ausführungsform von Schleifsteinen geschaffen werden. Der Schleifstein besitzt einen mehrteiligen Steinkranz und einen Kern aus Eisenbeton. Nach der Erfindung sind nun über die ganze Breite des Eisenbetonkernes schwalbenschwanzförmige Ansätze angebracht, die in schwalbenschwanzförmige Nuten der einzelnen Steinsegmente eingreifen.According to the present invention, an improved, safer embodiment of Whetstones are created. The grindstone has a multi-part stone wreath and a core made of reinforced concrete. According to the invention are now over the entire width of the Reinforced concrete core attached dovetail-shaped approaches, which in dovetail-shaped Engage the grooves of the individual stone segments.
Die radialen Fugen des äußeren Steinkranzes können zweckmäßig mit einer Zementmischung ausgegossen, an den parallelen Seitenflächen können in eingearbeitete Nuten noch eiserne Ringe angebracht werden. Durch eingelegte Formen kann man bei dem Einstampfen des Eisenbetonkernes das Wellenloch und Vertiefungen für die Rosetten ohne weiteres anbringen, so daß spätere Einarbeitungen erspart bleiben.The radial joints of the outer stone wreath can expediently with a cement mixture poured out, on the parallel side surfaces iron can still be found in grooves Rings are attached. Inlaid molds can be used to crush the The reinforced concrete core easily attach the shaft hole and recesses for the rosettes, so that later training is spared.
Eine derartige Ausführung von zusammengesetzten Schleifsteinen ermöglicht durch die den Erfindungsgegenstand bildende schwalbenschwanzförmige Verbindung zwischen dem äußeren Steinmantel und dem inneren Eisenbetonkern, daß die größere Druck- und Zugfestigkeit des Eisenbetons auf die äußeren Steinsegmente übertragen wird, und daß auch in der Mitte der Arbeitsfläche des Schleifsteines eine bedeutend vergrößerte Widerstandsfähigkeit gegen die während des Betriebes auftretenden Fliehkräfte geschaffen wird.Such a design of composite whetstones is made possible by the the subject invention forming dovetail connection between the outer stone jacket and the inner reinforced concrete core that the greater compressive and tensile strength of the reinforced concrete is transferred to the outer stone segments, and that also in the middle of the working surface of the grindstone a significantly increased resistance to those occurring during operation Centrifugal forces is created.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE219099C true DE219099C (en) |
Family
ID=480257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT219099D Active DE219099C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE219099C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE747140C (en) * | 1942-07-18 | 1944-09-11 | Max Boettger | Grinding stone for producing wood pulp |
US2754849A (en) * | 1952-06-19 | 1956-07-17 | Wirth Josef | Printing cylinders |
US5758242A (en) * | 1996-09-23 | 1998-05-26 | Xerox Corporation | Interlocking magnetic developer roll assembly and method of manufacturing |
EP1324152A1 (en) * | 2001-12-31 | 2003-07-02 | Xerox Corporation | Magnetic roll assembly |
-
0
- DE DENDAT219099D patent/DE219099C/de active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE747140C (en) * | 1942-07-18 | 1944-09-11 | Max Boettger | Grinding stone for producing wood pulp |
US2754849A (en) * | 1952-06-19 | 1956-07-17 | Wirth Josef | Printing cylinders |
US5758242A (en) * | 1996-09-23 | 1998-05-26 | Xerox Corporation | Interlocking magnetic developer roll assembly and method of manufacturing |
EP1324152A1 (en) * | 2001-12-31 | 2003-07-02 | Xerox Corporation | Magnetic roll assembly |
US6654582B2 (en) | 2001-12-31 | 2003-11-25 | Xerox Corporation | Magnetic roll assembly |
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