Support arrangement for gas-turbine blower

专利摘要:
This invention relates to mechanical engineering and can be used in gas turbine superchargers. The purpose of the invention is to increase reliability by eliminating the turbocharger shaft skew. Dual roller bearings are mounted on shaft 1. Between the outer rings 6, 7 and the housing 10 are installed locking rings 11 and 12 with holes 13. An even number of flexible rods 14 are passed through the holes. The ends of the rods are pressed in the flange 8 and the support ring 15. The ends of the locking rings facing one another are made grooves and protrusions in response to them. With this arrangement, the effective bending length of the flexible rod is relatively large compared to the total width of the bearing. Thanks to this, the bending stress in the flexible rods is reduced, 2 or less. WITH
公开号:SU1371505A3
申请号:SU843814608
申请日:1984-11-26
公开日:1988-01-30
发明作者:Херлер Хансульрих
申请人:Ббц Аг Браун,Бовери Унд Ко (Фирма)；
IPC主号:

专利说明:

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This invention relates to mechanical engineering and can be used in gas turbine superchargers.
The purpose of the invention is to increase reliability by eliminating the bias of the turbocharger shaft using flexible rods.
FIG. 1 shows the device in section; in fig. 2 is a section A-A in FIG. one .
On the shaft 1 of the turbocharger, there is a dual rolling bearing with inner rings 2 and 3, which are clamped between the stop 4 and the shaft step 5. The outer rings 6 and 7 of the bearings are fixed between the flange 8 and the shock-absorbing ring 9. Between the outer rings 6 and 7 and the housing 10 are retaining rings 11 and 12 with central holes 13 through which an even number of flexible rods 14 are passed so that each bearing has the same number of rods
The ends of the rods opposite the bearings are pressed into the flange 8 and the support ring 15, which is installed only to facilitate installation.
On facing each other, the ends of the locking rings are made grooves 16 and the response of the protrusions 17, placed in the grooves 16 with a gap of 18.
In the housing 10, an oil supply duct 19 is made and the oil sealing rings 20 are installed. Between the locking ring 11 and 12, the housing 10 and the oil sealing rings 20, a filling is formed with oil and an annular space connected to the oil supply channel, which is a damping system.
In addition, the support is provided with a second friction-damping system comprising a shock-absorbing ring U and a cup spring 21, the shock-absorbing ring 9 being installed with a preload between the outer ring 6 and the disc spring 21, which dampens the radial oscillations of the outer rings of the twin bearing.
The device works as follows.
715052
When operating on a twin bearing, axial force A and radial force R act. Both forces are equally distributed onto the bearings and transmitted to the housing. In this case, the axial force A is directly perceived by the flange B, and the radial force R through flexible rods 14 is transferred to the flange 8 and the support ring 15. The rods are arranged so that every second circumferentially resilient rod perceives radial forces
If, the same bearing.
The clamping position of the rods is chosen so that the effective bending length L in any direction is equal.
20 When transferring the shaft 1 of the turbocharger relative to the housing 10, the radial load on both rolling bearings will be asymmetric, i.e. the radial force of a single rolling bearing to be transferred increases in proportion to the local deflection of the elastic rods.

权利要求:
Claims (1)
[1]
Invention Formula
Supporting device for gas turbine blowers, containing a double rolling bearing, the outer rings of which are rigidly connected to their corresponding stop rings. Through coaxial through holes, in which evenly around the circumference are placed parallel to the axis of the shaft of the turbocharger.
rods, with their opposite ends secured in a support rigidly connected to the housing, characterized in that, in order to increase reliability,
the other ends of the locking rings have grooves and protrusions corresponding to them located in said grooves with axial and tangential gaps; by press fit.
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引用文献:

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JPS5997317A|1982-11-22|1984-06-05|Hitachi Ltd|Device for preventing bearing from rotating|JPH028102Y2|1985-02-07|1990-02-27|

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DE3628687C2|1986-08-23|1990-06-07|Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De|

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DE19538553B4|1995-10-17|2010-01-14|Schaeffler Kg|Rotor bearing of an exhaust gas turbocharger|

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US6682219B2|2002-04-03|2004-01-27|Honeywell International Inc.|Anisotropic support damper for gas turbine bearing|

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US7922583B2|2003-08-05|2011-04-12|Igt|Digital signal processor based generation and control of electronic signals in a gaming machine|

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DE102007016591A1|2007-04-05|2008-10-09|Rolls-Royce Deutschland Ltd & Co Kg|Multi-row thrust ball bearing with unbalanced load distribution|

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EP2902648B1|2014-02-03|2016-09-07|Lakeview Innovation Ltd.|Bearing assembly for an electric motor with axially pre-tensioned roller bearing|

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FR3091902B1|2019-01-23|2021-07-02|Safran Aircraft Engines|Device for centering and guiding in rotation a turbomachine shaft comprising several optimized damping fluid films|

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FR3095481B1|2019-04-25|2021-05-21|Safran Aircraft Engines|Double row angular contact ball bearing comprising emergency axial retention means integrated into the bearing|

法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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CH640183|1983-11-30|

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