DE1077171B - Device for the length of a tie rod independent of the clamping nut - Google Patents
Device for the length of a tie rod independent of the clamping nutInfo
- Publication number
- DE1077171B DE1077171B DEM40471A DEM0040471A DE1077171B DE 1077171 B DE1077171 B DE 1077171B DE M40471 A DEM40471 A DE M40471A DE M0040471 A DEM0040471 A DE M0040471A DE 1077171 B DE1077171 B DE 1077171B
- Authority
- DE
- Germany
- Prior art keywords
- tie rod
- pressure
- length
- clamping nut
- inner diameter
- 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
- 238000007789 sealing Methods 0.000 claims description 5
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 claims description 4
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
- B21B31/04—Rolling stand frames or housings; Roll mountings ; Roll chocks with tie rods in frameless stands, e.g. prestressed tie rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/04—Screwed connections specially modified in view of tensile load; Break-bolts for maintaining a tensile load
- F16B31/043—Prestressed connections tensioned by means of liquid, grease, rubber, explosive charge, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Fluid-Damping Devices (AREA)
Description
Einrichtung zum Längen eines Zugankers unabhängig von der Spannmutter Mit Zusatzpatentanmeldung M 362441b/7 a ist eine unabhängig von der Spannmutter wirkende Einrichtung zum Längen eines Zugankers unter Schutz gestellt worden, bei der insbesondere in der Verwendung für vorgespannte Walzgerüste auf die Enden des Zugankers ein diesen längender hydraulischer, veränderlicher Druck einwirkt, indem der hydraulische Druck im Inneren und auf die Böden des als Hohlkörper ausgeführten Zugankers, und zwar auf einen der beiden Böden über einen Kernbolzen einwirkt, der an seinem dem Druckraum zugewandten Ende einen Dichtungskolben trägt.Device for the length of a tie rod independently of the clamping nut With additional patent application M 362441b / 7a, one is independent of the clamping nut Acting device for the length of a tie rod has been placed under protection which is particularly used for prestressed roll stands on the ends of the A hydraulic, variable pressure which extends this length acts on the tie rod by the hydraulic pressure inside and on the bottoms of the hollow body Tie rod, acting on one of the two floors via a core bolt that carries a sealing piston at its end facing the pressure chamber.
Der Kernbolzen hat die Aufgabe, Tangentialspannungen und somit Aufweitungen im rohrförmigen Zuganker zu vermeiden, die hervorgerufen werden, wenn beide Böden des Zugankers unmittelbar vom Druckmittel beaufschlagt werden.The core bolt has the task of relieving tangential stresses and thus expansions to avoid in tubular tie rods that are caused when both bottoms of the tie rod are acted upon directly by the pressure medium.
Es besteht die Schwierigkeit, bei begrenztem Außendurchmeasiser und gegebenem Querschnitt des Zugankers die erforderliche Kraft zum Längen des Zugankers aufzubringen, da durch die erwähnten Voraussetzungen auch der Innendurchmesser des Zugankerrohres und damit die Druckfläche des Kernbolzenkolbene begrenzt sind.There is a problem with a limited outer diameter and given cross-section of the tie rod, the force required to lengthen the tie rod to apply, since the conditions mentioned also mean that the inner diameter of the Tie rod tube and thus the pressure surface of the core bolt piston are limited.
Im Gegensatz zu der bisher vorgesehenen Gestaltung des Zugankers als glattem Rohr sieht die Erfindung vor, daß der Zugaliker im Bereich der Kolbenführung für den Kernbolzen und des zugehörigen Bodens zu einem Zylindertopf verbreitert ist, dessen die Druckfläche des Dichtungskolbens bestimmender Innendurchmesser größer ist als der übrige Innendurchmesser des Zugankers.In contrast to the previously planned design of the tie rod as Smooth tube, the invention provides that the Zugaliker in the area of the piston guide for the core bolt and the associated base widened to a cylinder pot whose inner diameter, which determines the pressure surface of the sealing piston, is larger is than the remaining inner diameter of the tie rod.
Die Vergrößerung der wirksamen Kolbendruckfläche bedeutet einmal, daß man mit erheblich geringerem spezifischem Druck des Druckmittels auskommt, um die für eine vorgegebene Längung des Zugankers erforderliche Kraft aufzubringen. Zum anderen ist es nunmehr möglich, den Kernbolzen lediglich nach seiner Knicksicherheit zu bemessen, also dünner auszuführen als bisher. Als Folge ergibt sich, daß auch der Zuganker im Außendurchmesser unter Aufrechterhaltung seines vorgegebenen Querschnittes kleiner gemacht werden kann. Dies wirkt sich auf die Größe der Spannmutter und gegebenenfalls der Teile einer Anstellvorrichtung für die durch Zuganker miteinander verbundenen Bauteile, z. B. die Einbaustücke eines Walzgerüstes, günstig aus.The increase in the effective piston pressure area means once that you get by with significantly lower specific pressure of the pressure medium to to apply the force required for a given elongation of the tie rod. On the other hand, it is now possible to use the core bolt only according to its buckling resistance to be dimensioned, i.e. to be made thinner than before. As a result, it turns out that too the tie rod in the outer diameter while maintaining its specified cross-section can be made smaller. This affects the size of the clamping nut and possibly the parts of an adjusting device for the interconnected by tie rods Components, e.g. B. the chocks of a roll stand, cheap.
Die Wandstärke des Zylindertopfes kann beliebig stark gemacht werden, wodurch die Aufweitung des Zugankers im Bereich des Druckraumes weitgehend verhindert wird. Bildet der Zylindertopf eine ausreichend große äußere Bodenfläche zu dem nächsten Bauteil hin, so stützt sich der Zylindertopf zweckmäßig unmittelbar gegen dieses ab, so daß der Zuganker nur am anderen Ende eine Spannmutter trägt.The wall thickness of the cylinder pot can be made as thick as you like, whereby the expansion of the tie rod in the area of the pressure chamber is largely prevented will. The cylinder pot forms a sufficiently large outer floor area to the next Component, so the cylinder pot is expediently supported directly against this so that the tie rod only carries a clamping nut at the other end.
In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention shown.
Mit 1 ist ein als Zuganker dienendes Rohr bezeichnet, das am oberen Ende durch die Mutter 2 verschlossen ist. Am unteren Ende ist der Zuganker 1 zu einem Zylindertopf 1 ca erweitert; dessen Innendurchmesser größer ist als der Innendurchmesser des Rohres und der von einem Dichtungsflansch 3 verschlossen ist.With 1 serving as a tie rod tube is referred to, which is at the top The end is closed by the nut 2. The tie rod 1 is closed at the lower end a cylinder pot 1 ca expanded; whose inside diameter is larger than the inside diameter of the pipe and which is closed by a sealing flange 3.
Im Zylindertopf 1 a ist ein Kolben 6 gleitend angeordnet, dessen volle Kreisfläche vom Druckmittel beaufschlagt wird, um den Zuganker zu längen. Der Kolben 6 wirkt über den ihm gegenüber im Durchmesser kleineren Kernbolzen 4 auf den oberen Boden 2 des Zugankers 1 ein.In the cylinder pot 1 a, a piston 6 is slidably arranged, its full Circular area is acted upon by the pressure medium in order to lengthen the tie rod. The piston 6 acts on the upper one via the core bolt 4, which is smaller in diameter than it is Bottom 2 of tie rod 1.
Der Zylindertopf 1 ca bildet die untere Abstützung des Zugankers gegen das benachbarte der zu verbindenden Bauteile 9, 10, 11, so daß nur eine Spannmutter 12 am oberen Ende erforderlich ist.The cylinder pot 1 ca forms the lower support of the tie rod against the adjacent one of the components 9, 10, 11 to be connected, so that only one clamping nut 12 is required at the upper end.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM36244A DE1054042B (en) | 1957-12-23 | 1957-12-23 | Device for the length of a tie rod independent of the clamping nut |
| DEM40471A DE1077171B (en) | 1957-12-23 | 1959-02-12 | Device for the length of a tie rod independent of the clamping nut |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM36244A DE1054042B (en) | 1957-12-23 | 1957-12-23 | Device for the length of a tie rod independent of the clamping nut |
| DEM40471A DE1077171B (en) | 1957-12-23 | 1959-02-12 | Device for the length of a tie rod independent of the clamping nut |
| DEM46944A DE1148513B (en) | 1960-10-25 | 1960-10-25 | Hydraulically expandable tie rod with core bolt, independent of the clamping nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1077171B true DE1077171B (en) | 1960-03-10 |
Family
ID=30448792
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM36244A Pending DE1054042B (en) | 1957-09-09 | 1957-12-23 | Device for the length of a tie rod independent of the clamping nut |
| DEM40471A Pending DE1077171B (en) | 1957-12-23 | 1959-02-12 | Device for the length of a tie rod independent of the clamping nut |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM36244A Pending DE1054042B (en) | 1957-09-09 | 1957-12-23 | Device for the length of a tie rod independent of the clamping nut |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE1054042B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1230754B (en) | 1957-10-28 | 1966-12-22 | Neumann Ohg | An adjusting device consisting of a nut and a spindle for opposing parts, especially for chocks in rolling mills |
| DE1283292B (en) * | 1963-05-14 | 1968-11-21 | Northern Electric Co | Voice controlled intercom |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1145441B (en) * | 1953-03-26 | 1963-03-14 | Sempell Rhein Armaturen | Screw connection |
| DE1095236B (en) | 1958-10-06 | 1960-12-22 | Moeller & Neumann Gmbh | Device for stretching a tie rod independently of the tensioning nut |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2571265A (en) * | 1945-06-13 | 1951-10-16 | Leufven Axel Gustav Edvard | Hydraulic tensioning nut |
-
1957
- 1957-12-23 DE DEM36244A patent/DE1054042B/en active Pending
-
1959
- 1959-02-12 DE DEM40471A patent/DE1077171B/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1230754B (en) | 1957-10-28 | 1966-12-22 | Neumann Ohg | An adjusting device consisting of a nut and a spindle for opposing parts, especially for chocks in rolling mills |
| DE1283292B (en) * | 1963-05-14 | 1968-11-21 | Northern Electric Co | Voice controlled intercom |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1054042B (en) | 1959-04-02 |
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