CA2292292A1 - Detachable connection of rotationally symmetrical components - Google Patents
Detachable connection of rotationally symmetrical components Download PDFInfo
- Publication number
- CA2292292A1 CA2292292A1 CA002292292A CA2292292A CA2292292A1 CA 2292292 A1 CA2292292 A1 CA 2292292A1 CA 002292292 A CA002292292 A CA 002292292A CA 2292292 A CA2292292 A CA 2292292A CA 2292292 A1 CA2292292 A1 CA 2292292A1
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- CA
- Canada
- Prior art keywords
- tensioning
- sleeve
- component
- ring
- collar
- 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.)
- Abandoned
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/115—Caps
Abstract
A sleeve (4) arranged at a pipe or cylinder end (1) has a turn-out (5) toward the open end, which axially extends over a component (2) with an integrally formed shoulder (8) and with a radially outwardly projecting collar (3). A plurality of recesses (6) with a contact surface (11) each, with which wedge-shaped tensioning elements (7) are in contact over their full surface, are arranged in the turn-out (5) of the sleeve in the circumferential direction. Between the shoulder (8) and the wedge-shaped tensioning elements (7), screws (tensioners 9) bring about a nonpositive and positive locking between the sleeve (4), the tensioning elements (7) and the collar (3) of the component (2) to be tensioned during the assembly. An increasing internal pressure brings about an increase in the reliability of the tensioning.
Corresponding to the materials used, the angle between the wedge surfaces of the tensioning elements (7) or the contact surfaces (11) of the sleeve (4) and the respective tensioning or central axes (10) of the tensioning elements (7) has a value that ensures static friction and consequently self locking of the tensioned components after the tensioning process.
Corresponding to the materials used, the angle between the wedge surfaces of the tensioning elements (7) or the contact surfaces (11) of the sleeve (4) and the respective tensioning or central axes (10) of the tensioning elements (7) has a value that ensures static friction and consequently self locking of the tensioned components after the tensioning process.
Description
Docket # 65176 DETACHABLE CONNECTION OF ROTATIONALLY
SYMMETRICAL COMPONENTS
FIELD OF THE INVENTION
The present invention pertains to a detachable connection arrangement for the nonpositive and positive-locking connection of rotationally symmetrical, paired or unpaired components, especially for extremely heavily loaded connections of large diameters of pipe or cylinder ends with one another, as well as for connections of machine/valve bodies and pipe/cylinder ends with arched or flat closing covers or closing covers of a design adapted to the particular application, for cover locks on high-pressure hydraulic cylinders, as well as for connections of rotating components, e.g., large rolling bearings with their connection structures.
BACKGROUND OF THE INVENTION
EP 0 775 863 B 1 discloses a detachable connection arrangement for the nonpositive and positive-locking connection of rotationally symmetrical components, which, having smaller dimensions than conventional connections, brings about a substantial improvement in terms of the load-bearing capacity and increases the safety against leaks in the case of flanged joints. At the same time, the susceptibility to deterioration of the tensioned state is reduced. Contrary to the conventional standard flanges, which project widely due to the geometry, this connection represents a compact design and leads to savings of material. Besides economical advantages, tremendous ecological advantages arise in nearly all areas oftechnology, especially in chemistry as well as in the delivery, transportation and processing of crude oil and natural gas. However, manufacturing problems lead to high machining and manufacturing costs in the case of connection arrangements with relatively large diameters.
Components with widely projecting attachments or integrally formed pipe ends, e.g., large cylindrical connections in offshore technology, in steel-making or on heavy machine housings, cannot always be machined on large boring machines, so that the use of portable boring machines is necessary. Their performance cannot be compared with that of large boring machines. Since the holes are not arranged at right angles to the horizontal or vertical axial direction of the boring machines in the sleeve for receiving the tightening screws, the use of long spindles is necessary. The drilling performance is limited because of vibrations of the spindles. The machining times will be long, leading to high machining costs.
Great manufacturing problems arise in connection with the manufacture of the tensioning elements according to EP 0 775 863 B 1. These require a likewise conical surface with a corresponding surface finish for the full-surface contact in the conical turn-out of the sleeve. The individual elements are manufactured from a turned ring, which has the cross section and consequently also the conical contact surface of the tensioning elements, by sawing radially apart. In the case of connections of large diameters, e.g., large rolling bearings with their connection structures, only relatively thin-walled tensioning elements are needed.
However, the corresponding ring for manufacturing the elements does not have the necessary rigidity for tensioning and for the further machining. The consequence of this is that the required surface finishes cannot be manufactured at all or they can be manufactured with special tensioning tools only, at a correspondingly high cost. Additional machining possibilities by grinding or milling, e.g., on 5-axis milling machines, also lead to high manufacturing costs.
However, the greatest disadvantage arises from the fact that different tensioning elements with different radii and conical surfaces are needed for each connection arrangement corresponding to the different diameters and loads. This rules out standardization and repetition work in the manufacture of the tensioning elements. Moreover, the radial sawing apart of the ring for each diameter requires a separate auxiliary construction. The entire manufacture of the tensioning elements is time-consuming and expensive.
Another drawback arises when heavily loaded cover locks must be opened and closed at short intervals of time as needed for utilizing the advantages that can be achieved with EP
0 775 863 B 1. The individual tensioning of the tensioning elements between the collar and the sleeve is too time-consuming in certain situations, so that the advantages of cannot be utilized in these cases.
SUMfMARY AND OBJECTS OF THE INVENTION
The primary object ofthe present invention is to design a connection arrangement ofthe type described, especially for large and extremely heavily loaded components, to avoid some or all of the above-described drawbacks, such that it can be manufactured at a lower cost compared with the prior-art arrangement according to EP 0 775 863 B 1, wherein the overall manufacturing costs are economical in relation to the advantages that can be achieved with EP
0 775 863 B 1.
According to the invention a detachable nonpositive and positive-locking connection arrangement, for two paired or unpaired components that are rotationally symmetrical at the connection point, is provided. In the case of a paired connection arrangement the connection arrangement includes a radially outwardly or inwardly projecting collar or ring at one component with a radially outwardly or inwardly projecting collar or ring at the other component, with a said sleeve, which extends axially over both collars or rings and with a number of wedge-shaped tensioning elements. The tensioning elements are each arranged distributed over the circumference between one of the collars or rings and the sleeve. In the case of an unpaired connection, the connection has a radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve and with a number of wedge-shaped tensioning elements. The tensioning elements are each arranged distributed over the circumference between the collar or ring and the sleeve. One component and/or the other component has a shoulder. The shoulder comprises one-part or multipart, detachably or rigidly arranged individual segments. Tensioners (tension means) are arranged distributed over the circumference between the shoulder and the tensioning elements.
The tensioners (tension means) cooperate with the shoulder and the said tensioning elements in the direction of their axis of arrangement and action such that they tension same radially and axially in the direction of the tensioning axis between the collar or ring of the respective component and the sleeve.
The invention provides the shoulder arranged on one or both of the components to be tensioned. Between this shoulder and the tensioning elements, tensioning means bring about a nonpositive and positive-locking connection between the sleeve, the tensioning elements and the respective collar or ring of the component to be tensioned during the assembly, As a result, holes in the sleeve, which can be prepared only at a high cost and are not at right angles to the horizontal or vertical axis direction of the connection, are eliminated.
Corresponding to the size and the machining possibilities of the individual components, the shoulders may be prepared directly on these or from one-part or multipart individual segments.
Advantages leading to the desired cost saving arise from this.
No loads, but only relatively weak forces, which are necessary to achieve the tensioned state, are transmitted during the operation by the shoulder or the individual segments. In the case of a shoulder manufactured from segments, these may therefore be arranged as relatively small individual segments on surfaces extending at right angles to an axis or as holes on one of the components to be tensioned, which holes can be prepared in a simple manner, or they may be additionally connected to the sleeve corresponding to the needs or be only fastened to the sleeve. They may be, e.g., plugged in, screwed together or welded with relatively small weld seams.
Further advantages arise in all connections of machine or valve housings or pipe or cylinder ends with an arched or flat closing cover or with a closing cover designed corresponding to the intended use. Thus, the inner pressure, which is present only up to the seal, always generates a smaller radial expansion of the sleeve than the connected cylinder shell that is exposed to the full inner pressure. The radial distance between the shoulder and the tensioning elements decreases due to the arcing of the cover that becomes established.
Regardless of the tensioning elements selected, the increasing inner pressure brings about an increase in the reliability of the tensioning.
The reliability of the tensioning is also increased in the case of the arrangement of the shoulder according to the present invention in the cylindrical area of one of the components to be connected. Due to the so-called S shock, deformations will develop in the cylinder wall with increasing inner pressure, and these deformations bring about a reduction in the distance between the shoulder and the tensioning elements in this arrangement as well.
Taking these effects into account in the dimensioning of the connection makes it possible to reduce the wall thickness of the sleeve and to reduce the manufacturing costs.
In the case of an embodiment of the sleeve according to the present invention a plurality of recesses are arranged in the circumferential direction. Each of the recesses has a contact surface, which extends in the circumferential direction at right angles to the central and tensioning axes of the tensioning elements symmetrically in both directions.
To achieve the nonpositive and positive locking, the tensioning elements must be in contact with this surface with their fill surface and have a high surface finish. The value of the angle between the wedge surfaces of the tensioning elements and the contact surfaces of the sleeve and the respective tensioning or central axes of the tensioning elements is set corresponding to the materials used.
This angle is preferably selected to be such that there is static fiiction and consequently self locking of the tensioned components and of the connection arrangement after the tensioning process. The forces then needed to maintain the state are weak (low).
Thus, identical surfaces can be prepared with each recess, regardless of the diameter, e.g., as a flat surface in the most favorable form in terms of costs. This leads to great simplifications in the manufacture of the tensioning elements. These may be manufactured from flat material or from high-quality casting. Depending on the loads, the same tensioning elements may be used for different diameter ranges and different fields of use, contrary to the design according to EP 0 775 863 B 1. This makes possible standardization, repetition work and the stocking of these components. Besides great advantages in terms of manufacture and simplifications in the machining of the sleeve, enormous cost reductions will be realized in the manufacture of the tensioning elements. High additional transportation costs, which arise for the necessary large forged rings in the case of a design according to EP 0 775 863 B 1, are no longer incurred because of the individual manufacture of the tensioning elements.
Further advantages arise due to the design of the sleeve according to the present invention. Based on the value of the loads that can be transmitted and the dimensioning of the components, it is possible to reduce the number of recesses in the circumferential direction to the minimum number of the necessary tensioning elements. It is desirable to arrange the recesses in the sleeve at spaced locations from one another, so that a radial web will be left between two of the recesses each. While a volume must be removed by machining from the sleeve over the entire circumference to support the tensioning elements in a design according to EP 0 775 863 B 1, this is now reduced corresponding to the number of the necessary tensioning elements. In addition, the overturning characteristic and the load-bearing performance of the sleeve are increased by the full cross section remaining in the principal loaded area, so that the wall thickness can be reduced by optimization while maintaining the necessary tensioned state. This leads to further cost reductions.
The design of the connection arrangement according to the present invention makes it possible to utilize the advantages that can be achieved according to EP 0 775 863 B 1, even on connections that must be opened and closed again at short intervals of time based on the needs of a process. Relatively quick-acting devices or assembly units may be arranged as tensioning means in this case. These may be mechanically acting lever or eccentric tensioners, as well as hydraulically, pneumatically, electrically or correspondingly thermally acting assembly units, and they are able to generate the necessary tensioning force either individually or in combination with one another. They are commercially available as integated combined components, e.g., as electric motor and oil hydraulic pumps in a housing or as pneumatic, hydraulic feed units.
These tensioning means may be selected regardless of the load occurring during the operation.
SYMMETRICAL COMPONENTS
FIELD OF THE INVENTION
The present invention pertains to a detachable connection arrangement for the nonpositive and positive-locking connection of rotationally symmetrical, paired or unpaired components, especially for extremely heavily loaded connections of large diameters of pipe or cylinder ends with one another, as well as for connections of machine/valve bodies and pipe/cylinder ends with arched or flat closing covers or closing covers of a design adapted to the particular application, for cover locks on high-pressure hydraulic cylinders, as well as for connections of rotating components, e.g., large rolling bearings with their connection structures.
BACKGROUND OF THE INVENTION
EP 0 775 863 B 1 discloses a detachable connection arrangement for the nonpositive and positive-locking connection of rotationally symmetrical components, which, having smaller dimensions than conventional connections, brings about a substantial improvement in terms of the load-bearing capacity and increases the safety against leaks in the case of flanged joints. At the same time, the susceptibility to deterioration of the tensioned state is reduced. Contrary to the conventional standard flanges, which project widely due to the geometry, this connection represents a compact design and leads to savings of material. Besides economical advantages, tremendous ecological advantages arise in nearly all areas oftechnology, especially in chemistry as well as in the delivery, transportation and processing of crude oil and natural gas. However, manufacturing problems lead to high machining and manufacturing costs in the case of connection arrangements with relatively large diameters.
Components with widely projecting attachments or integrally formed pipe ends, e.g., large cylindrical connections in offshore technology, in steel-making or on heavy machine housings, cannot always be machined on large boring machines, so that the use of portable boring machines is necessary. Their performance cannot be compared with that of large boring machines. Since the holes are not arranged at right angles to the horizontal or vertical axial direction of the boring machines in the sleeve for receiving the tightening screws, the use of long spindles is necessary. The drilling performance is limited because of vibrations of the spindles. The machining times will be long, leading to high machining costs.
Great manufacturing problems arise in connection with the manufacture of the tensioning elements according to EP 0 775 863 B 1. These require a likewise conical surface with a corresponding surface finish for the full-surface contact in the conical turn-out of the sleeve. The individual elements are manufactured from a turned ring, which has the cross section and consequently also the conical contact surface of the tensioning elements, by sawing radially apart. In the case of connections of large diameters, e.g., large rolling bearings with their connection structures, only relatively thin-walled tensioning elements are needed.
However, the corresponding ring for manufacturing the elements does not have the necessary rigidity for tensioning and for the further machining. The consequence of this is that the required surface finishes cannot be manufactured at all or they can be manufactured with special tensioning tools only, at a correspondingly high cost. Additional machining possibilities by grinding or milling, e.g., on 5-axis milling machines, also lead to high manufacturing costs.
However, the greatest disadvantage arises from the fact that different tensioning elements with different radii and conical surfaces are needed for each connection arrangement corresponding to the different diameters and loads. This rules out standardization and repetition work in the manufacture of the tensioning elements. Moreover, the radial sawing apart of the ring for each diameter requires a separate auxiliary construction. The entire manufacture of the tensioning elements is time-consuming and expensive.
Another drawback arises when heavily loaded cover locks must be opened and closed at short intervals of time as needed for utilizing the advantages that can be achieved with EP
0 775 863 B 1. The individual tensioning of the tensioning elements between the collar and the sleeve is too time-consuming in certain situations, so that the advantages of cannot be utilized in these cases.
SUMfMARY AND OBJECTS OF THE INVENTION
The primary object ofthe present invention is to design a connection arrangement ofthe type described, especially for large and extremely heavily loaded components, to avoid some or all of the above-described drawbacks, such that it can be manufactured at a lower cost compared with the prior-art arrangement according to EP 0 775 863 B 1, wherein the overall manufacturing costs are economical in relation to the advantages that can be achieved with EP
0 775 863 B 1.
According to the invention a detachable nonpositive and positive-locking connection arrangement, for two paired or unpaired components that are rotationally symmetrical at the connection point, is provided. In the case of a paired connection arrangement the connection arrangement includes a radially outwardly or inwardly projecting collar or ring at one component with a radially outwardly or inwardly projecting collar or ring at the other component, with a said sleeve, which extends axially over both collars or rings and with a number of wedge-shaped tensioning elements. The tensioning elements are each arranged distributed over the circumference between one of the collars or rings and the sleeve. In the case of an unpaired connection, the connection has a radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve and with a number of wedge-shaped tensioning elements. The tensioning elements are each arranged distributed over the circumference between the collar or ring and the sleeve. One component and/or the other component has a shoulder. The shoulder comprises one-part or multipart, detachably or rigidly arranged individual segments. Tensioners (tension means) are arranged distributed over the circumference between the shoulder and the tensioning elements.
The tensioners (tension means) cooperate with the shoulder and the said tensioning elements in the direction of their axis of arrangement and action such that they tension same radially and axially in the direction of the tensioning axis between the collar or ring of the respective component and the sleeve.
The invention provides the shoulder arranged on one or both of the components to be tensioned. Between this shoulder and the tensioning elements, tensioning means bring about a nonpositive and positive-locking connection between the sleeve, the tensioning elements and the respective collar or ring of the component to be tensioned during the assembly, As a result, holes in the sleeve, which can be prepared only at a high cost and are not at right angles to the horizontal or vertical axis direction of the connection, are eliminated.
Corresponding to the size and the machining possibilities of the individual components, the shoulders may be prepared directly on these or from one-part or multipart individual segments.
Advantages leading to the desired cost saving arise from this.
No loads, but only relatively weak forces, which are necessary to achieve the tensioned state, are transmitted during the operation by the shoulder or the individual segments. In the case of a shoulder manufactured from segments, these may therefore be arranged as relatively small individual segments on surfaces extending at right angles to an axis or as holes on one of the components to be tensioned, which holes can be prepared in a simple manner, or they may be additionally connected to the sleeve corresponding to the needs or be only fastened to the sleeve. They may be, e.g., plugged in, screwed together or welded with relatively small weld seams.
Further advantages arise in all connections of machine or valve housings or pipe or cylinder ends with an arched or flat closing cover or with a closing cover designed corresponding to the intended use. Thus, the inner pressure, which is present only up to the seal, always generates a smaller radial expansion of the sleeve than the connected cylinder shell that is exposed to the full inner pressure. The radial distance between the shoulder and the tensioning elements decreases due to the arcing of the cover that becomes established.
Regardless of the tensioning elements selected, the increasing inner pressure brings about an increase in the reliability of the tensioning.
The reliability of the tensioning is also increased in the case of the arrangement of the shoulder according to the present invention in the cylindrical area of one of the components to be connected. Due to the so-called S shock, deformations will develop in the cylinder wall with increasing inner pressure, and these deformations bring about a reduction in the distance between the shoulder and the tensioning elements in this arrangement as well.
Taking these effects into account in the dimensioning of the connection makes it possible to reduce the wall thickness of the sleeve and to reduce the manufacturing costs.
In the case of an embodiment of the sleeve according to the present invention a plurality of recesses are arranged in the circumferential direction. Each of the recesses has a contact surface, which extends in the circumferential direction at right angles to the central and tensioning axes of the tensioning elements symmetrically in both directions.
To achieve the nonpositive and positive locking, the tensioning elements must be in contact with this surface with their fill surface and have a high surface finish. The value of the angle between the wedge surfaces of the tensioning elements and the contact surfaces of the sleeve and the respective tensioning or central axes of the tensioning elements is set corresponding to the materials used.
This angle is preferably selected to be such that there is static fiiction and consequently self locking of the tensioned components and of the connection arrangement after the tensioning process. The forces then needed to maintain the state are weak (low).
Thus, identical surfaces can be prepared with each recess, regardless of the diameter, e.g., as a flat surface in the most favorable form in terms of costs. This leads to great simplifications in the manufacture of the tensioning elements. These may be manufactured from flat material or from high-quality casting. Depending on the loads, the same tensioning elements may be used for different diameter ranges and different fields of use, contrary to the design according to EP 0 775 863 B 1. This makes possible standardization, repetition work and the stocking of these components. Besides great advantages in terms of manufacture and simplifications in the machining of the sleeve, enormous cost reductions will be realized in the manufacture of the tensioning elements. High additional transportation costs, which arise for the necessary large forged rings in the case of a design according to EP 0 775 863 B 1, are no longer incurred because of the individual manufacture of the tensioning elements.
Further advantages arise due to the design of the sleeve according to the present invention. Based on the value of the loads that can be transmitted and the dimensioning of the components, it is possible to reduce the number of recesses in the circumferential direction to the minimum number of the necessary tensioning elements. It is desirable to arrange the recesses in the sleeve at spaced locations from one another, so that a radial web will be left between two of the recesses each. While a volume must be removed by machining from the sleeve over the entire circumference to support the tensioning elements in a design according to EP 0 775 863 B 1, this is now reduced corresponding to the number of the necessary tensioning elements. In addition, the overturning characteristic and the load-bearing performance of the sleeve are increased by the full cross section remaining in the principal loaded area, so that the wall thickness can be reduced by optimization while maintaining the necessary tensioned state. This leads to further cost reductions.
The design of the connection arrangement according to the present invention makes it possible to utilize the advantages that can be achieved according to EP 0 775 863 B 1, even on connections that must be opened and closed again at short intervals of time based on the needs of a process. Relatively quick-acting devices or assembly units may be arranged as tensioning means in this case. These may be mechanically acting lever or eccentric tensioners, as well as hydraulically, pneumatically, electrically or correspondingly thermally acting assembly units, and they are able to generate the necessary tensioning force either individually or in combination with one another. They are commercially available as integated combined components, e.g., as electric motor and oil hydraulic pumps in a housing or as pneumatic, hydraulic feed units.
These tensioning means may be selected regardless of the load occurring during the operation.
The position or the axis of action of the tensioning means, which are arranged detachably or rigidly connected to both the tensioning elements and the tensioned component, does not need to have the position of the tensioning axis of the tensioning elements. Due to commercially available connections, the tensioning means may be arranged, e.g., on a ring structure on the outside of a closing cover and/or on the sleeve together with the tensioning elements and be positioned together for tensioning. The tensioning process can thus be performed in a relatively short time.
Due to the closing cover being designed with a shoulder formed integrally on the outside, it is possible, especially in the case of extremely heavily loaded connections, if the tensioning means are designed as screws, to pass these screws through the tensioning elements in the direction of the tensioning axis and to tension the tensioning elements additionally with the sleeve corresponding to an embodiment according to EP 0 775 863 B 1. The radial rigidity of the cover thus increases the load-bearing performance of the surrounding sleeve in the area in which the load-removing tensioning elements transmit the loads occurring during the 1 S operation. The overturning of the sleeve is reduced, and advantages arise, e.g., in terms of the sealing behavior of a flanged joint.
To achieve more uniform load on the load-bearing components, the collar and the sleeve may be arranged projecting both inwardly and outwardly, e.g., in connections of pipe or cylinder ends with one another or in connections of cylindrical components with the foundation.
As a result, the tensioning elements transmit the loads both over the inwardly projecting collar and the outwardly projecting collar. Overturning deformations do not occur on this component, so that further advantages arise for this type of connection arrangements.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding ofthe invention, its operating advantages and specific obj ects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Figure 1 is a sectional representation of a connection arrangement of a pipe or cylinder end with an arched closing cover;
Figure 2 is a perspective interior view of a sleeve section;
Figure 3 is a longitudinal section of a connection arrangement of two pipe or cylinder ends;
Figure 4 is a connection arrangement analogously to the sectional representation in Figure 3, but with a shoulder made of individual segments;
Figure S is a large rolling bearing tensioned with the connection structures, represented as a longitudinal section; and Figure 6 is a sectional representation of a connection arrangement of a pipe or cylinder end with a flat closing cover.
DESCRIPTION OF THE PREFERRED EMBODIIvvIENT
Referring to the drawings in particular, Figure 1 shows a sectional representation of a detachable connection arrangement of a cylinder end 1 with an arched closing cover 2, which has an integrally formed shoulder 8 on its outside. A turn-out 5 is milled into the sleeve 4, which is arranged rigidly at the open end of the cylinder 1. This turn-out 5 surrounds the arched bottom 2 with the integrally formed collar 3. A plurality of recesses 6, each with a contact surface 11, with which the tensioning elements 7 are in contact over the full surface, are milled into the turn-out 5 in the circumferential direction. Between the shoulder 8 and the tensioning elements 7, screws acting as tensioning means 9 bring about a nonpositive locking and positive locking between the sleeve, the tensioning elements and the collar during the assembly.
Figure 2 shows a perspective interior view of a detail of the open end of a sleeve 4 with a plurality of recesses 6 milled into the turn-out 5, which have a contact surface 11 each for receiving the wedge-shaped tensioning elements. The milled recesses 6 are arranged in the circumferential direction such that a web or the full sleeve wall thickness is left between each recess.
Figure 3 shows the longitudinal section of an unpaired connection with a sleeve 4, which is rigidly arranged at the cylinder end 1 and has a turn-out 5 at the open end. This surrounds the component 2 with the integrally formed collar 3. In the circumferential direction, the turn-out 5 has a plurality of recesses 6 with a contact surface 11 each for receiving the wedge-shaped tensioning elements 7 and for being in full-surface contact with them.
Tensioners in the form screws acting as tensioning means 9 between the shoulder 8 arranged in the immediate vicinity of the collar 3 in the cylindrical area and the tensioning elements 7 bring about a nonpositive and positive locking between the sleeve 4, the tensioning elements 7 and the collar 3 during assembly.
Figure 4 shows as an exemplary embodiment the longitudinal section of the connection shown in Figure 3 with a shoulder comprising individual segments. The segments are inserted into holes, which are arranged at right angles to the cylinder wall and can therefore be prepared in a relatively simple manner, and welded. The front surfaces of the components to be tensioned are arranged at an angle. This is necessary, e.g., to absorb strong transverse forces or for the central arrangement in the case of rotating components.
Figure 5 shows a longitudinal section of a large, single-row rolling bearing component to be tensioned having an inner ring 3' and an outer ring 3" with its connection with the fixed connection structure (component 1) and with a rotatable connection structure (component 2).
A sleeve 4, which has a turn-out 5 at the open end, is rigidly arranged at each of the 1 S components 1, 2. In the circumferential direction, the turn-outs have a plurality of recesses 6 with a contact surface 11 each for receiving the wedge-shaped tensioning elements 7 and for being in full-surface contact with same. Screws used as tensioning means 9 generate a nonpositive and positive-locking connection between the sleeve, the tensioning elements 7, the bearing and the connection structure during the assembly.
Figure 6 shows as an exemplary embodiment a sectional representation of a detachable connection of a cylinder end 1 with a flat closing cover 2, which has an integrally formed shoulder 8 on the outside. The sleeve 4, which is rigidly arranged at the open end of the cylinder 1, has a turn-out 5. This surrounds the flat closing cover 2 with the integrally formed collar 3. Recesses 6 with a contact surface 11 each, with which the tensioning elements 7 are in contact over their full surface, are milled into the turn-out 5 in the circumferential direction.
Screws acting as tensioning means 9 generate a nonpositive and positive-locking connection between the tensioned components with the shoulder 8 of the closing cover 2, the tensioning elements 7 and the sleeve 4 in the direction of the tensioning axis 10. The cooperation of all components makes it possible to utilize the radial rigidity of the flat closing cover, so that the deformation resistance of the entire connection is increased.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.
Due to the closing cover being designed with a shoulder formed integrally on the outside, it is possible, especially in the case of extremely heavily loaded connections, if the tensioning means are designed as screws, to pass these screws through the tensioning elements in the direction of the tensioning axis and to tension the tensioning elements additionally with the sleeve corresponding to an embodiment according to EP 0 775 863 B 1. The radial rigidity of the cover thus increases the load-bearing performance of the surrounding sleeve in the area in which the load-removing tensioning elements transmit the loads occurring during the 1 S operation. The overturning of the sleeve is reduced, and advantages arise, e.g., in terms of the sealing behavior of a flanged joint.
To achieve more uniform load on the load-bearing components, the collar and the sleeve may be arranged projecting both inwardly and outwardly, e.g., in connections of pipe or cylinder ends with one another or in connections of cylindrical components with the foundation.
As a result, the tensioning elements transmit the loads both over the inwardly projecting collar and the outwardly projecting collar. Overturning deformations do not occur on this component, so that further advantages arise for this type of connection arrangements.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding ofthe invention, its operating advantages and specific obj ects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Figure 1 is a sectional representation of a connection arrangement of a pipe or cylinder end with an arched closing cover;
Figure 2 is a perspective interior view of a sleeve section;
Figure 3 is a longitudinal section of a connection arrangement of two pipe or cylinder ends;
Figure 4 is a connection arrangement analogously to the sectional representation in Figure 3, but with a shoulder made of individual segments;
Figure S is a large rolling bearing tensioned with the connection structures, represented as a longitudinal section; and Figure 6 is a sectional representation of a connection arrangement of a pipe or cylinder end with a flat closing cover.
DESCRIPTION OF THE PREFERRED EMBODIIvvIENT
Referring to the drawings in particular, Figure 1 shows a sectional representation of a detachable connection arrangement of a cylinder end 1 with an arched closing cover 2, which has an integrally formed shoulder 8 on its outside. A turn-out 5 is milled into the sleeve 4, which is arranged rigidly at the open end of the cylinder 1. This turn-out 5 surrounds the arched bottom 2 with the integrally formed collar 3. A plurality of recesses 6, each with a contact surface 11, with which the tensioning elements 7 are in contact over the full surface, are milled into the turn-out 5 in the circumferential direction. Between the shoulder 8 and the tensioning elements 7, screws acting as tensioning means 9 bring about a nonpositive locking and positive locking between the sleeve, the tensioning elements and the collar during the assembly.
Figure 2 shows a perspective interior view of a detail of the open end of a sleeve 4 with a plurality of recesses 6 milled into the turn-out 5, which have a contact surface 11 each for receiving the wedge-shaped tensioning elements. The milled recesses 6 are arranged in the circumferential direction such that a web or the full sleeve wall thickness is left between each recess.
Figure 3 shows the longitudinal section of an unpaired connection with a sleeve 4, which is rigidly arranged at the cylinder end 1 and has a turn-out 5 at the open end. This surrounds the component 2 with the integrally formed collar 3. In the circumferential direction, the turn-out 5 has a plurality of recesses 6 with a contact surface 11 each for receiving the wedge-shaped tensioning elements 7 and for being in full-surface contact with them.
Tensioners in the form screws acting as tensioning means 9 between the shoulder 8 arranged in the immediate vicinity of the collar 3 in the cylindrical area and the tensioning elements 7 bring about a nonpositive and positive locking between the sleeve 4, the tensioning elements 7 and the collar 3 during assembly.
Figure 4 shows as an exemplary embodiment the longitudinal section of the connection shown in Figure 3 with a shoulder comprising individual segments. The segments are inserted into holes, which are arranged at right angles to the cylinder wall and can therefore be prepared in a relatively simple manner, and welded. The front surfaces of the components to be tensioned are arranged at an angle. This is necessary, e.g., to absorb strong transverse forces or for the central arrangement in the case of rotating components.
Figure 5 shows a longitudinal section of a large, single-row rolling bearing component to be tensioned having an inner ring 3' and an outer ring 3" with its connection with the fixed connection structure (component 1) and with a rotatable connection structure (component 2).
A sleeve 4, which has a turn-out 5 at the open end, is rigidly arranged at each of the 1 S components 1, 2. In the circumferential direction, the turn-outs have a plurality of recesses 6 with a contact surface 11 each for receiving the wedge-shaped tensioning elements 7 and for being in full-surface contact with same. Screws used as tensioning means 9 generate a nonpositive and positive-locking connection between the sleeve, the tensioning elements 7, the bearing and the connection structure during the assembly.
Figure 6 shows as an exemplary embodiment a sectional representation of a detachable connection of a cylinder end 1 with a flat closing cover 2, which has an integrally formed shoulder 8 on the outside. The sleeve 4, which is rigidly arranged at the open end of the cylinder 1, has a turn-out 5. This surrounds the flat closing cover 2 with the integrally formed collar 3. Recesses 6 with a contact surface 11 each, with which the tensioning elements 7 are in contact over their full surface, are milled into the turn-out 5 in the circumferential direction.
Screws acting as tensioning means 9 generate a nonpositive and positive-locking connection between the tensioned components with the shoulder 8 of the closing cover 2, the tensioning elements 7 and the sleeve 4 in the direction of the tensioning axis 10. The cooperation of all components makes it possible to utilize the radial rigidity of the flat closing cover, so that the deformation resistance of the entire connection is increased.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.
Claims (21)
1. A detachable nonpositive and positive-locking connection arrangement for two paired or unpaired components that are rotationally symmetrical at the connection point, the arrangement comprising:
in the case of a paired connection arrangement, with a radially outwardly or inwardly projecting collar or ring at one component, with a radially outwardly or inwardly projecting collar or ring at the other component, with a sleeve, which extends axially over both collars or rings, or in the case of an unpaired connection, with radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the said other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve;
a number of wedge-shaped tensioning elements, which are each arranged distributed over the circumference between the collar or ring and the sleeve;
a shoulder provided as part of the component and/or the other component the shoulder comprising one-part or multipart detachably or rigidly arranged individual segments; and a tesioning means arranged distributed over a circumference between the shoulder and the tensioning elements and the tensioning means cooperate with the shoulder and the tensioning elements in a direction of their axis of arrangement and have an action for tensioning the same radially and axially in a direction of a tensioning axis between the collar or ring of the respective component and the sleeve.
in the case of a paired connection arrangement, with a radially outwardly or inwardly projecting collar or ring at one component, with a radially outwardly or inwardly projecting collar or ring at the other component, with a sleeve, which extends axially over both collars or rings, or in the case of an unpaired connection, with radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the said other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve;
a number of wedge-shaped tensioning elements, which are each arranged distributed over the circumference between the collar or ring and the sleeve;
a shoulder provided as part of the component and/or the other component the shoulder comprising one-part or multipart detachably or rigidly arranged individual segments; and a tesioning means arranged distributed over a circumference between the shoulder and the tensioning elements and the tensioning means cooperate with the shoulder and the tensioning elements in a direction of their axis of arrangement and have an action for tensioning the same radially and axially in a direction of a tensioning axis between the collar or ring of the respective component and the sleeve.
2. The detachable connection arrangement according to claim 1, further comprising a plurality of recesses arranged at each open end in the sleeve, distributed over the circumference, wherein each of the recesses has a contact surface for supporting and for being in contact with a corresponding wedge-shaped tensioning element, an angle between contact surfaces or the wedge surfaces of the contacting tensioning elements and the respective tensioning axis has a value, corresponding to the materials used, that ensures a static friction and consequently self locking of the tensioned components after the tensioning process, and the recesses are arranged in the circumferential direction at axially spaced locations from one another or directly one behind the other.
3. The detachable connection arrangement according to claim 1 wherein the tensioning means comprises screws.
4. The detachable connection arrangement according to claim 3 wherein the screws pass through holes in the tensioning elements in the direction of a tensioning axis and cooperate with the sleeve.
5. The detachable connection arrangement according to claim 1 wherein the tensioning means includes hydraulically, pneumatically, electrically or thermally acting units or other mechanically acting components arranged each individually or in combination with one another.
6. The detachable connection arrangement according to claim 5 wherein the units of the tensioning means are detachably or rigidly connected to one another, to the component and/or to the sleeve and/or to the tensioning elements.
7. The detachable connection arrangement according to claim 1 wherein the sleeve provided on the component is detachably connected to the component.
8. The detachable connection arrangement according to claim 1 wherein the sleeve provided on the component and the collar arranged on the other component are designed both radially inwardly and radially outwardly.
9. The detachable connection arrangement according to claim 2 wherein the component to be tensioned is the inner ring or the outer ring of a large rolling bearing, wherein the recesses in the sleeve provided on the component are arranged radially in the outwardly extending direction and the recesses in the sleeve provided on the component are designed radially inwardly.
10. The detachable connection arrangement according to claim 1 wherein the shoulder is arranged detachably or rigidly additionally on the sleeve or only on the sleeve.
11. A detachable nonpositive and positive-locking connection arrangement for two paired or unpaired components that are rotationally symmetrical at the connection point, the arrangement comprising:
in the case of a paired connection arrangement, with a radially outwardly or inwardly projecting collar or ring at one component, with a radially outwardly or inwardly projecting collar or ring at the other component, with a sleeve, which extends axially over both collars or rings, or in the case of an unpaired connection, with radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the said other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve;
a number of wedge-shaped tensioning elements, which are each arranged distributed over the circumference between the collar or ring and the sleeve;
a plurality of recesses arranged at each open end in the sleeve, distributed over the circumference, wherein each of the recesses has a contact surface for supporting and for being in contact with a corresponding wedge-shaped tensioning element, an angle between contact surfaces or the wedge surfaces of the contacting tensioning elements and the respective tensioning axis has a value, corresponding to the materials used, that ensures a static friction and consequently self locking of the tensioned components after the tensioning process, and the recesses are arranged in the circumferential direction at axially spaced locations from one another or directly one behind the other.
in the case of a paired connection arrangement, with a radially outwardly or inwardly projecting collar or ring at one component, with a radially outwardly or inwardly projecting collar or ring at the other component, with a sleeve, which extends axially over both collars or rings, or in the case of an unpaired connection, with radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the said other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve;
a number of wedge-shaped tensioning elements, which are each arranged distributed over the circumference between the collar or ring and the sleeve;
a plurality of recesses arranged at each open end in the sleeve, distributed over the circumference, wherein each of the recesses has a contact surface for supporting and for being in contact with a corresponding wedge-shaped tensioning element, an angle between contact surfaces or the wedge surfaces of the contacting tensioning elements and the respective tensioning axis has a value, corresponding to the materials used, that ensures a static friction and consequently self locking of the tensioned components after the tensioning process, and the recesses are arranged in the circumferential direction at axially spaced locations from one another or directly one behind the other.
12. The detachable connection arrangement according to claim 11 wherein the sleeve provided on the component is detachably connected to the component.
13. The detachable connection arrangement according to claim 11 wherein the sleeve provided on the component and the collar arranged on the other component are designed both radially inwardly and radially outwardly.
14. The detachable connection arrangement according to claim 11 wherein the component to be tensioned is the inner ring or the outer ring of a large rolling bearing, wherein the recesses in the sleeve provided on the component are arranged radially in the outwardly extending direction and the recesses in the sleeve provided on the component are designed radially inwardly.
15. A detachable nonpositive and positive-locking connection arrangement for two paired or unpaired components that are rotationally symmetrical at the connection point, the arrangement comprising:
in the case of a paired connection arrangement, with a radially outwardly or inwardly projecting collar or ring at one component, with a radially outwardly or inwardly projecting collar or ring at the other component, with a sleeve, which extends axially over both collars or rings, or in the case of an unpaired connection, with radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the said other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve;
a number of wedge-shaped tensioning elements, which are each arranged distributed over the circumference between the collar or ring and the sleeve;
a shoulder provided as part of the component and/or the other component the shoulder comprising one-part or multipart detachably or rigidly arranged individual segments; and a locking/tensioning arrangement including either:
tensioners arranged distributed over a circumference between the shoulder and the tensioning elements and the tensioners cooperate with the shoulder and the tensioning elements in a direction of their axis of arrangement and have an action for tensioning the same radially and axially in a direction of a tensioning axis between the collar or ring of the respective component and the sleeve or a plurality of recesses arranged at each open end in the sleeve, distributed over the circumference, wherein each of the recesses has a contact surface for supporting and for being in contact with a corresponding wedge-shaped tensioning element, an angle between contact surfaces or the wedge surfaces of the contacting tensioning elements and the respective tensioning axis has a value, corresponding to the materials used, that ensures a static friction and consequently self locking of the tensioned components after the tensioning process, and the recesses are arranged in the circumferential direction at axially spaced locations from one another or directly one behind the other.
in the case of a paired connection arrangement, with a radially outwardly or inwardly projecting collar or ring at one component, with a radially outwardly or inwardly projecting collar or ring at the other component, with a sleeve, which extends axially over both collars or rings, or in the case of an unpaired connection, with radially outwardly or inwardly projecting collar or ring at one component, with a sleeve, which is formed at the said other component and axially extends over the collar or ring in a turn-out present at the open end of the sleeve;
a number of wedge-shaped tensioning elements, which are each arranged distributed over the circumference between the collar or ring and the sleeve;
a shoulder provided as part of the component and/or the other component the shoulder comprising one-part or multipart detachably or rigidly arranged individual segments; and a locking/tensioning arrangement including either:
tensioners arranged distributed over a circumference between the shoulder and the tensioning elements and the tensioners cooperate with the shoulder and the tensioning elements in a direction of their axis of arrangement and have an action for tensioning the same radially and axially in a direction of a tensioning axis between the collar or ring of the respective component and the sleeve or a plurality of recesses arranged at each open end in the sleeve, distributed over the circumference, wherein each of the recesses has a contact surface for supporting and for being in contact with a corresponding wedge-shaped tensioning element, an angle between contact surfaces or the wedge surfaces of the contacting tensioning elements and the respective tensioning axis has a value, corresponding to the materials used, that ensures a static friction and consequently self locking of the tensioned components after the tensioning process, and the recesses are arranged in the circumferential direction at axially spaced locations from one another or directly one behind the other.
16. The detachable connection arrangement according to claim 15 wherein the tensioners comprises screws.
17. The detachable connection arrangement according to claim 16 wherein the screws pass through holes in the tensioning elements in the direction of the tensioning axis and cooperate with the sleeve.
18. The detachable connection arrangement according to claim 15 wherein the tensioners includes hydraulically, pneumatically, electrically or thermally acting units or other mechanically acting components arranged each individually or in combination with one another.
19. The detachable connection arrangement according to claim 18 wherein the units of the tensioners are detachably or rigidly connected to one another, to the component and/or to the sleeve and/or to the tensioning elements.
20. The detachable connection arrangement according to claim 15 wherein the locking/tensioning arrangement includes both the tensioners arranged distributed over a circumference between the shoulder and the tensioning elements and the tensioners cooperate with the shoulder and the tensioning elements in a direction of their axis of arrangement and have an action for tensioning the same radially and axially in a direction of a tensioning axis between the collar or ring of the respective component and the sleeve and the plurality of recesses arranged at each open end in the sleeve, distributed over the circumference, wherein each of the recesses has a contact surface for supporting and for being in contact with a corresponding wedge-shaped tensioning element, an angle between contact surfaces or the wedge surfaces of the contacting tensioning elements and the respective tensioning axis has a value, corresponding to the materials used, that ensures a static friction and consequently self locking of the tensioned components after the tensioning process, and the recesses are arranged in the circumferential direction at axially spaced locations from one another or directly one behind the other.
21
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19858171.8 | 1998-12-16 | ||
| DE19858171 | 1998-12-16 | ||
| DE19958260A DE19958260A1 (en) | 1998-12-16 | 1999-12-03 | Detachable connection of rotationally symmetrical components |
| DE19958260.2 | 1999-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2292292A1 true CA2292292A1 (en) | 2000-06-16 |
Family
ID=26050801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002292292A Abandoned CA2292292A1 (en) | 1998-12-16 | 1999-12-15 | Detachable connection of rotationally symmetrical components |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1010931B1 (en) |
| AT (1) | ATE207588T1 (en) |
| CA (1) | CA2292292A1 (en) |
| DE (1) | DE29921714U1 (en) |
| DK (1) | DK1010931T3 (en) |
| ES (1) | ES2166207T3 (en) |
| NO (1) | NO996222L (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20015918U1 (en) * | 2000-09-13 | 2002-02-07 | Hengst Walter Gmbh & Co Kg | Flange connection between a functional unit of an internal combustion engine and an associated mounting base |
| DE102004013332B4 (en) | 2004-03-17 | 2013-09-26 | Holter Regelarmaturen Gmbh & Co. Kg | Detachable connection arrangement for two rotationally symmetrical components |
| DE202007013319U1 (en) | 2007-09-13 | 2007-12-20 | Schlemenat, Alfred W. | Releasable non-positive and positive connection of a propeller hub and a variable pitch propeller |
| EP2050968A1 (en) | 2007-10-19 | 2009-04-22 | Siemens Aktiengesellschaft | Pressure container with a cover |
| DE202008014974U1 (en) | 2008-11-04 | 2009-04-30 | Schlemenat, Alfred W. | Offshore foundation structure |
| DE202010009632U1 (en) | 2010-06-18 | 2010-10-14 | Schlemenat, Alfred W. | Releasable non-positive and positive connection of two cylindrical components, in particular tower / monopile connections of offshore wind turbines |
| DE102010026116A1 (en) | 2010-07-05 | 2012-01-05 | Tec Artec Valves Gmbh & Co. Kg | Desuperheaters |
| DE202010009860U1 (en) | 2010-07-05 | 2011-10-24 | Tec Artec Valves Gmbh & Co. Kg | Desuperheaters |
| DE102012007145A1 (en) | 2012-04-12 | 2013-10-17 | Alfred W. Schlemenat | Releasable connection of rotationally symmetrical components |
| DE102015209568B4 (en) | 2015-05-26 | 2017-07-06 | MTU Aero Engines AG | Flange connection with a clamping device for connecting flange webs |
| DE202018101223U1 (en) * | 2018-03-05 | 2019-06-06 | Evoguard Gmbh | Housing for a centrifugal pump, centrifugal pump with housing and filling system comprising such a centrifugal pump |
| EP3940041A1 (en) | 2020-07-17 | 2022-01-19 | iGas energy GmbH | Reactor for supercritical hydrothermal gasification of biomass |
| EP3961039A1 (en) * | 2020-08-31 | 2022-03-02 | Sulzer Management AG | Pump for conveying a fluid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1475860A1 (en) * | 1965-09-21 | 1969-03-27 | Stevens William Ernest | Pipe coupling |
| CH488944A (en) * | 1968-03-21 | 1970-04-15 | Sulzer Ag | Device for attaching an element to another element, in particular for high pressure pumps |
| US3873138A (en) * | 1972-10-19 | 1975-03-25 | Caterpillar Tractor Co | Quick disconnect sealed coupling |
| DE29615393U1 (en) * | 1995-11-25 | 1996-10-31 | Gutehoffnungshuette Man | Non-positive and positive connection of rotationally symmetrical components |
-
1999
- 1999-12-03 DE DE29921714U patent/DE29921714U1/en not_active Expired - Lifetime
- 1999-12-11 AT AT99124682T patent/ATE207588T1/en active
- 1999-12-11 EP EP99124682A patent/EP1010931B1/en not_active Expired - Lifetime
- 1999-12-11 ES ES99124682T patent/ES2166207T3/en not_active Expired - Lifetime
- 1999-12-11 DK DK99124682T patent/DK1010931T3/en active
- 1999-12-15 CA CA002292292A patent/CA2292292A1/en not_active Abandoned
- 1999-12-15 NO NO19996222A patent/NO996222L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1010931A1 (en) | 2000-06-21 |
| DE29921714U1 (en) | 2000-03-09 |
| DK1010931T3 (en) | 2002-02-18 |
| EP1010931B1 (en) | 2001-10-24 |
| ATE207588T1 (en) | 2001-11-15 |
| NO996222D0 (en) | 1999-12-15 |
| NO996222L (en) | 2000-06-19 |
| ES2166207T3 (en) | 2002-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |