SU681196A1 - Sensor of a system for the protection of turbomachine against shaft overspeed - Google Patents
Sensor of a system for the protection of turbomachine against shaft overspeedInfo
- Publication number
- SU681196A1 SU681196A1 SU772556063A SU2556063A SU681196A1 SU 681196 A1 SU681196 A1 SU 681196A1 SU 772556063 A SU772556063 A SU 772556063A SU 2556063 A SU2556063 A SU 2556063A SU 681196 A1 SU681196 A1 SU 681196A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sensor
- protection
- striker
- against shaft
- shaft
- Prior art date
Links
Landscapes
- Control Of Turbines (AREA)
Description
кой 8 и винт 9 с гайкой 10 служат дл настройки срабатывани бойка 1 при достижении определенной частоты вращени вала 3.This 8 and screw 9 with nut 10 are used to adjust the triggering of the striker 1 when a certain frequency of rotation of the shaft 3 is reached.
Датчик работает следующим образом.The sensor works as follows.
При частоте вращени вала 3 нижеWith the frequency of rotation of the shaft 3 below
уровн настройки центробежна сила бойка 1 меньше силы предварительного нат га пружины 2, боек 1 своей внутренней поверхностью прижат, к валу 3 по его наружной поверхности, с повышением частот вращени вала 3 сверх уровн настройки шнтро жна сила преодолевает сопротивление пружины 2, и боек 1 перемещаетс радиально до упора 4. Снижение частоты вращени приводит к уменьшению центробежной силы бойка 1 и к его посадке на вал 3 усилием пружины 2. Настройка ера батывани бойка 1 при достижении определенной частоты вращени вала 3 осуществл етс путем изменени координаты центра т жести бойка 1 перемешение л груза 7 с контргайкой 8 вдоль его оси, а также изменением первоначального нат жени пружины 2 парой винт 9-гайка 10 Провер ют работудатчика при номинальной частоте вращени вала подачей масла во внутреннюю полость бойка 1 поThe tuning level of the centrifugal force of the striker 1 is less than the preloading force of the spring 2, the firing pin 1 with its inner surface is pressed against the shaft 3 along its outer surface, with an increase in the frequency of rotation of the shaft 3 above the tuning level, the drag force overcomes the resistance of the spring 2 and radially to the stop 4. Reducing the rotational speed leads to a decrease in the centrifugal force of the striker 1 and its landing on the shaft 3 by the force of the spring 2. The tuning of the thrusting axis of the striker 1 when a certain frequency of rotation of the shaft 3 is reached altering the coordinates of the center of gravity of the striker 1 L of a stirred load 7 with a locknut 8 along its axis, and the change in the initial tension of the spring 2 a pair of screw-and-nut 9 10 rabotudatchika checked at a nominal frequency of rotation of the shaft oil flow into the interior cavity of the striker 1
каналам 6, центр т жести бойка 1 смещаетс и, как следствие, срабатывает.To channels 6, the center of gravity of the striker 1 is shifted and, as a result, triggered.
Выполнение бойка в виде полумес ца с прилеганием по наружной поверхности вала обеспечивает центрирование бойка без трущихс поверхностей, что повышает надежность работы датчика.Performing the striker in the form of a half-moon with a fit on the outer surface of the shaft provides the centering of the striker without rubbing surfaces, which increases the reliability of the sensor.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772556063A SU681196A1 (en) | 1977-12-19 | 1977-12-19 | Sensor of a system for the protection of turbomachine against shaft overspeed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772556063A SU681196A1 (en) | 1977-12-19 | 1977-12-19 | Sensor of a system for the protection of turbomachine against shaft overspeed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU681196A1 true SU681196A1 (en) | 1979-08-25 |
Family
ID=20738461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772556063A SU681196A1 (en) | 1977-12-19 | 1977-12-19 | Sensor of a system for the protection of turbomachine against shaft overspeed |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU681196A1 (en) |
-
1977
- 1977-12-19 SU SU772556063A patent/SU681196A1/en active
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