Manual actuating device for the actuation of an appliance, subjected to a force in a direction opposite to the actuation direction, especially in the production of mineral oil or natural gas, such as a blowout preventer (BOP), valve, actuator, throttle or similar, with a rotating spindle, which can
Manual actuating device for the actuation of an appliance, subjected to a force in a direction opposite to the actuation direction, especially in the production of mineral oil or natural gas, such as a blowout preventer (BOP), valve, actuator, throttle or similar, with a rotating spindle, which can be connected to a displacing element of the appliance, moveable in the actuation direction, and with a regulating device, drive-connected through at least one mechanism and which can be manually actuated. In order to improve such a manual actuating device such that, even with a low number of revolutions of the regulating device, high forces on the rotating spindle and therefore on the displacing element can be transferred and there is no need for supporting equipment, such as hydraulics or similar, the mechanism exhibits a screw drive with screw drive nut and the rotating spindle as recirculating spindle, whereby the screw drive nut is drive-connected to the regulating device.
대표청구항▼
The invention claimed is: 1. A manual actuating device for the actuation of an appliance subjected to a force in a direction opposite to the actuation direction, wherein the appliance has a spindle connected to a displacing element that is moveable in the actuation direction by a regulating device,
The invention claimed is: 1. A manual actuating device for the actuation of an appliance subjected to a force in a direction opposite to the actuation direction, wherein the appliance has a spindle connected to a displacing element that is moveable in the actuation direction by a regulating device, wherein said manual actuating device comprises: a screw drive having a screw drive nut drive-connected to the regulating device; a rotating collar rotationally rigidly connected to the screw drive nut and to a rotating cap, wherein the rotating cap is connected to the regulating device in a moveable manner; and a locking device attached to the rotating cap and adapted to hold a corresponding rotational position of the rotating cap relative to a housing connected to the appliance, wherein said locking device comprises: a plurality of insertion holes formed along the outside circumference of the rotating cap; and an insertion pin supported on the housing and adapted to be displaced in the direction of the insertion holes. 2. The manual actuating device according to claim 1, wherein the screw drive is a ball screw drive. 3. The manual actuating device according to claim 1, wherein the screw drive is a roller screw drive. 4. The manual actuating device according to claim 3, wherein the roller screw drive is a planetary roller screw drive. 5. The manual actuating device according to claim 1, wherein the housing is flange-connected to the appliance. 6. The manual actuating device according to claim 5, wherein the housing comprises an insertion protrusion that is inserted into the appliance. 7. The manual actuating device according to claim 6, wherein the housing further comprises a surrounding ring flange spaced at its flee end to the insertion protrusion and adapted for external attachment to the appliance. 8. The manual actuating device according to claim 7, further comprising a sealing ring releasably attached to the insertion protrusion. 9. The manual actuating device according to claim 8, further comprising a ring insert releasably inserted into a beating hole of the insertion protrusion, wherein said ring insert is adapted to accommodate one end of the displacing element. 10. The manual actuating device according to claim 9, wherein the spindle is releasably connected, at its front end facing the insertion protrusion, to the displacing element. 11. The manual actuating device according to claim 10, wherein the front end of the spindle is adapted to be inserted into a receiving indentation on one end of the displacing element, wherein the rotating spindle is releasably fixed to the displacing element by a dowel pin. 12. The manual actuating device according to claim 11, further comprising an insertion hole extending transversally to the longitudinal direction of the spindle and adapted to accept the dowel pin on the front end of the spindle. 13. The manual actuating device according to claim 12 wherein the screw drive nut is arranged within the device housing in the rotating collar which is rotationally supported in said housing, but rotationally rigidly fixed in the longitudinal direction. 14. The manual actuating device according to claim 13, further comprising roller bearings, or spherical roller bearings, are arranged between the rotating collar and the wall of a longitudinal hole through the housing. 15. The manual actuating device according to claim 14, wherein the roller bearings are held, so that they cannot be displaced, in indentations both in the wall of the longitudinal hole and in the rotating collar. 16. The manual actuating device according to claim 15, further comprising a fixing ring, adapted to hold the roller bearings, releasably mounted on the housing and/or on the rotating collar. 17. The manual actuating device according to claim 16, wherein the fixing ring forms an edge of the indentations in the rotating collar and the wall of the longitudinal hole. 18. The manual actuating device according to claim 17, wherein the fixing ring is screwed onto one end of the rotating collar. 19. The manual actuating device according to claim 18, wherein the rotating cap is located on the end of the housing facing the regulating device. 20. The manual actuating device according to claim 19, wherein the rotating cap is releasably attached to the fixing ring. 21. The manual actuating device according to claim 20, further comprising a spindle receiving indentation formed in the rotating cap. 22. The manual actuating device according to claim 21, further comprising a mounting surface, formed on an external side of the rotating cap pointing away from the housing, for a connection adapter for the rotationally rigid connection of the regulating device and the rotating cap. 23. The manual actuating device according to claim 22, wherein the regulating device has at least one handwheel. 24. The manual actuating device according to claim 23, further comprising a cardan shaft connection arranged between the handwheel and the connection adapter. 25. The manual actuating device according to claim 1, wherein the insertion pin is subject to spring pressure in the direction of the insertion hole. 26. The manual actuating device according to claim 25, wherein the locking device further comprises a retaining pin, moveable along a connecting link, protruding from the insertion pin. 27. The manual actuating device according to claim 26, wherein the connecting link is formed in a wall of a housing collar accommodating the insertion pin with a spring element. 28. A linear actuator comprising: a spindle coupled to an axially translatable member disposed within a body; a screw drive nut engaged with said spindle and rotatable relative to the body; a rotating cap coupled to said screw drive nut; a plurality of insertion holes formed along the outside circumference of said rotating cap; and an insertion pin supported on the body and operable to selectively engage one of said plurality of insertion holes. 29. A manual actuator comprising: a cap rotatably coupled to a body; a screw drive nut coupled to said rotating cap; a bearing disposed between said screw drive nut and the body such that said screw drive nut rotatable relative to said body, wherein said bearing axially fixes said screw drive nut relative to the body; a spindle engaged with said screw drive nut and coupled to an axially translatable member disposed within the body, wherein said spindle is operable to axially translate in response to rotation of said screw drive nut; a locking system comprising a pin supported on the body and operable to engage one of a plurality of holes disposed on an outer circumference of said cap.
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이 특허에 인용된 특허 (6)
Renfro Wesley E. (2804 Broadmoor Houma LA 70360), Hydraulic choking device.
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