A damping arrangement (1) for damping radial vibrations in a rotating shaft (2), the damping arrangement (1) comprising at least one first damping element (3), at least one second damping element (4), and a bearing arrangement (5) operably engaging the first damping element (3) and the second damping element (4). The bearing arrangement (5) comprises a first bearing member (6), a second bearing member (7), and a reference (8). The first bearing member (6) is rotatably mounted on the shaft (2) so that radial movement of the shaft (2) is transferred to the first bearing member (6), and is operably connected to the second bearing member (7) by the first damping element (3) and by a first steering structure (9). The first steering structure (9) allows only reciprocating movement of the first bearing member (6), and the shaft (2), in a first radial direction (D1), and the first damping element (3) dampens the reciprocating movement in the first radial direction (D1) with respect to the second bearing member (7). The second bearing member (7) is operably connected to the reference (8) by the second damping element (4) and by a second steering structure (10) allowing only reciprocating movement of the second bearing member (7), the first bearing member (6), and the shaft (2), in a second radial direction D2. The second damping element (4) dampens the reciprocating movement in the second radial direction (D2) with respect to the reference (8).
F16F 15/12 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
2.
Self-aligning bearing support assembly for supporting a radial load rotary or linear bearing
A self-aligning bearing support assembly for supporting a radial load rotary or linear bearing. The bearing support assembly has a main axis (A) and includes an outer sleeve and an inner sleeve at least partially received in the outer sleeve. The inner sleeve has an axially extending bore for supporting a rotary or linear bearing or for forming a bearing surface of a bearing. Three or more circumferentially separated chambers are formed between the inner sleeve and the outer sleeve. Each chamber is confined in all directions by walls of the assembly. A lump of a substantially incompressible material fills each of the at least three chambers with the chamber concerned substantially completely enclosing the lump.
A rotating shaft arrangement (14) comprising a shaft (2) having an axial extent. The shaft is radially supported by a first self-aligning radial load rotary bearing assembly (15) and radially supported by a second self-aligning radial load rotary bearing assembly (16). The second self -aligning radial load rotary bearing assembly (16) is axially spaced from the first self-aligning radial load rotary bearing assembly (15), and the shaft (2) is axially supported by a first self-aligning axial load rotary bearing (201). The self-aligning radial load rotary bearing assemblies (15, 16) and/or the self -aligning axial load rotary bearing assembly (201) comprise one or more chambers for supporting its bearing, the chamber substantially completely enclosing a lump of incompressible material, the lump of incompressible material filling said chamber, to thereby increase the stiffness of the bearing assembly.
F16C 23/08 - Ball or roller bearings self-adjusting
F16C 27/06 - Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
A dowel pin (1) according to a first aspect with a cylindrical body (4). The cylindrical body (4) is divided into first and second parts (2,3). The first part (2) is movably connected to the second part (3) allowing only relative transverse movement between the first and second parts (2,3). According to a second aspect, the dowel pin (1) comprises a cylindrical circumferential surface (5) and first and second longitudinal ends. The circumferential surface (5) comprises a first plurality of primary radially lifted contact areas (33) at a first distance D1 from the first longitudinal end and a second distance D2 from the second longitudinal end, with D1 being less than D2, and a second plurality of secondary lifted contact areas (35,36) at a third distance D3 from the first longitudinal end and a fourth distance D4 from the second longitudinal end, D3 being larger than D4.
A damping arrangement (1) for damping radial vibrations in a rotating shaft (2), the damping arrangement (1) comprising at least one first damping element (3), at least one second damping element (4), and a bearing arrangement (5) operably engaging the first damping element (3) and the second damping element (4). The bearing arrangement (5) comprises a first bearing member (6), a second bearing member (7), and a reference (8). The first bearing member (6) is rotatably mounted on the shaft (2) so that radial movement of the shaft (2) is transferred to the first bearing member (6), and is operably connected to the second bearing member (7) by the first damping element (3) and by a first steering structure (9). The first steering structure (9) allows only reciprocating movement of the first bearing member (6), and the shaft (2), in a first radial direction (D1), and the first damping element (3) dampens the reciprocating movement in the first radial direction (D1) with respect to the second bearing member (7). The second bearing member (7) is operably connected to the reference (8) by the second damping element (4) and by a second steering structure (10) allowing only reciprocating movement of the second bearing member (7), the first bearing member (6), and the shaft (2), in a second radial direction D2. The second damping element (4) dampens the reciprocating movement in the second radial direction (D2) with respect to the reference (8).
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
F01D 25/16 - Arrangement of bearingsSupporting or mounting bearings in casings
6.
A SELF- ALIGNING BEARING SUPPORT ASSEMBLY FOR SUPPORTING A RADIAL LOAD ROTARY OR LINEAR BEARING
A self-aligning bearing support assembly (1) for supporting a radial load rotary or linear bearing. The bearing support assembly (1) has a main axis (A) and comprises an outer sleeve (2) and an inner sleeve (3) at least partially received in the outer sleeve. The inner sleeve (3) has an axially extending bore for supporting a rotary or linear bearing or for forming a bearing surface of a bearing. Three or more circumferentially separated chambers are formed between the inner sleeve (3) and the outer sleeve (2). Each chamber is confined in all directions by walls of the assembly (1). A lump (6) of a substantially incompressible material fills each of the at least three chambers with the chamber concerned substantially completely enclosing the lump (6), thereby increasing the radial stiffness of the bearing assembly.
A fastener (1) for transferring a tension load to one or more clamped components (8,9) in a tension joint, and a method to establish such a tension joint. The fastener comprises a tension rod (2) and a compression sleeve (3). A band (7) is spirally wound around the compression sleeve (3). The spirally wound band (7) exerts a crushing pressure on the compression sleeve (3). The band (7) is wound spirally on the compression sleeve (3). The compression sleeve (3) is compressed by the spirally wound band (7). The compression sleeve (3) applies contact pressure on the tension rod (2). The contact pressure of the compression sleeve (7) on the tension rod (2) creates static friction that locks the compression sleeve (3) to the tension rod (2).
F16B 39/12 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts
F16B 39/24 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
A dowel pin (1) according to a first aspect with a cylindrical body (4). The cylindrical body (4) is divided into first and second parts (2,3). The first part (2) is movably connected to the second part (3) allowing only relative transverse movement between the first and second parts (2,3). According to a second aspect, the dowel pin (1) comprises a cylindrical circumferential surface (5) and first and second longitudinal ends. The circumferential surface (5) comprises a first plurality of primary radially lifted contact areas (33) at a first distance D1 from the first longitudinal end and a second distance D2 from the second longitudinal end, with D1 being less than D2, and a second plurality of secondary lifted contact areas (35,36) at a third distance D3 from the first longitudinal end and a fourth distance D4 from the second longitudinal end, D3 being larger than D4.
patents
