CN201162520Y - Manual locking device of screw and transmission mechanism combination - Google Patents
Manual locking device of screw and transmission mechanism combination Download PDFInfo
- Publication number
- CN201162520Y CN201162520Y CNU2008200622090U CN200820062209U CN201162520Y CN 201162520 Y CN201162520 Y CN 201162520Y CN U2008200622090 U CNU2008200622090 U CN U2008200622090U CN 200820062209 U CN200820062209 U CN 200820062209U CN 201162520 Y CN201162520 Y CN 201162520Y
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- Prior art keywords
- shaft
- gear
- optical axis
- locking device
- nut
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- Expired - Fee Related
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Abstract
The utility model provides a manual locking device integrating a helix and a transmission mechanism. The structures on the left and the right end are basically the same, wherein, the left end is formed by connecting a handwheel, a handwheel shaft, a gear, a splice key, a nut, a plain shaft with a ball bearing-rectangular (trapezoid) helix and a locking sloping shaft in the hydraulic lock together. The gear is connected with the handwheel shaft and the nut by the splice key. The right side consists of a gear, a splice key, a nut, a handwheel shaft and a locknut on the head face of the handwheel shaft, a plain shaft with a ball bearing-rectangular (trapezoid) helix and a locking sloping shaft in the hydraulic lock, which are connected together. The plain shaft with a ball bearing-rectangular (trapezoid) helix consists of four parts, wherein the plain shaft contacts the sloping shaft; the middle part of the plain shaft is provided with a ball helix, the part adjacent to the external part is a rectangular (trapezoid) helix, the external head face of the plain shaft is a step. The manual locking device provided by the utility model adopts a combined helix structure, thereby overcoming the shortcomings of the prior manual locking device, saving labor, improving the locking speed, ensuring the safety, and reliably achieving locking up of the flashboard blowout preventer.
Description
Technical field
The utility model relates to the manual locking device of a kind of spiral and transmission mechanism combination, is applicable to when the ram preventer hydraulic control locking apparatus lost efficacy, and utilizes the combination of spiral and transmission mechanism that preventer is carried out manual locking.
Background technology
Present ram preventer hydraulic locking apparatus has manual locking and two kinds of structures of hydraulic locking.
The purpose of ram preventer installing armstrong's patent locking device be guarantee that ram preventer is shunt in a well stably in a long term and when hydraulic control was lost efficacy in order to manual locking, guarantee ram preventer reliability in use.Behind the hydraulic pressure closing well, flashboard utilizes lock shaft locking.Present manual locking mechanism adopts the screw-drive mechanism of rectangle or trapezoidal thread to realize.
The forced locking device of ram preventer is meant that the locking of flashboard and release action all utilize hydraulic pressure to finish automatically.The operating feature of hydraulic locking apparatus is: after ram preventer utilized hydraulic pressure to realize the closing well operation, locking device was finished the flashboard locking action immediately automatically under the effect of oil pressure; Otherwise when ram preventer utilizes hydraulic pressure to drive a well, under the effect of hydraulic control oil pressure, finish flashboard release action at first automatically, and then realize that hydraulic pressure drives a well.In a single day the situation that hydraulic control was lost efficacy appears in present hydraulic locking apparatus, just can not carry out manual locking, and ram preventer just is difficult to finish the locking action behind the closing well like this, thereby lacks the reliability of locking.
The ram preventer hydraulic locking apparatus is particularly suitable for some particular environment, and as marine drilling, the locking of flashboard and release can't be used manually-operated, can only take hydraulic control; Perhaps be subjected to the restriction of rig substructure structure height, also adopt hydraulic locking apparatus when being difficult to use the manual locking preventer.In addition, the operation labour intensity of armstrong's patent locking device is big at present, speed is slow, and the jam phenomenon appears in operation often, has greatly limited further promoting the use of of manual locking device.In general, blowout preventer manual locking and hydraulic locking all have certain limitation.
The utility model content
For the shortcoming that overcomes manual locking device with utilize the advantage of hydraulic control, guarantee that the ram preventer locking device that surges still possessed the function that manual-operated emergent is locked when hydraulic operation lost efficacy.The utility model proposes the manual locking device of a kind of spiral and transmission mechanism combination, this device can utilize the combination of spiral and transmission mechanism that ram preventer is carried out manual locking when hydraulic control locking apparatus lost efficacy.
The technical scheme that its technical problem that solves the utility model adopts is: the manual locking device of a kind of spiral and transmission mechanism combination is made up of the essentially identical structure in left and right two ends, and wherein left end is by handwheel, hand wheel shaft, gear, linking bond, nut with have the optical axis of ball-square (ladder) shape spiral and locking inclined-plane that hydraulic lock is interior is coupling to touch and combines; Described gear links to each other with hand wheel shaft, nut by linking bond; Right-hand member is also by the locking nut of gear, linking bond, nut, hand wheel shaft and end face thereof with have the optical axis of ball-square (ladder) shape spiral and the locking inclined-plane in the hydraulic lock is coupling to touch and combines; The described optical axis that has ball-square (ladder) shape spiral is divided into four parts, is optical axis with the contacted position of inclined-plane axle wherein, and the optical axis mid portion is a ball screw, and it is square (ladder) shape spiral near the outer end, and the outer end of optical axis is a step; Wherein the rotation direction of the ball screw passage of manual locking device right-hand component optical axis and square (ladder) shape spiral is dextrorotation, and the rotation direction of the ball screw of manual locking device left-hand component optical axis and square (ladder) shape spiral then is left-handed; Hand wheel shaft, gear interconnect by sliding bearing and bearing support.
The beneficial effects of the utility model are: use combined helical mechanism, can overcome the shortcoming of original manual locking device, reach laborsaving, the speed when improving locking guarantees the purpose that safe and reliable realization ram preventer is locked.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Among the figure: 1, handwheel; 2, gear 6, gear; 3, bearing support; 4, sliding bearing; 5, hand wheel shaft; 7, nut; 8, step; 9, square (ladder) shape spiral; 10, axle sleeve; 11, optical axis; 12, ball screw; 13, linking bond; 14, linking bond; 15, end face locking nut; 16, hydraulic lock; 17, inclined-plane axle; 18, ram preventer.
The specific embodiment
Further specify the utility model patent below by embodiment.
Embodiment
Its operating principle is as follows: right part of the present utility model and left part structural similarity.Rotate handwheel 1, rotate by hand wheel shaft 5 driven gears 2, and by 6 rotations of key connecting 14 driven gears, gear 6 rotates by the nut 7 that linking bond 13 drives in ball-rectangular coil transmission mechanism, thereby driving ball moves in the ball screw 12 that nut 7 and optical axis 11 are formed, make optical axis 11 moving linearlies, after reaching certain position, the carrying that is threaded with square (ladder) shape in the nut 7 of square on the optical axis 11 (ladder) shape spiral 9 parts, the inclined-plane of optical axis 11 part ends contacts with inclined-plane axle 17 on the hydraulic lock 16, promote hydraulic lock 16 motions, thus the locking of ram preventer 18 behind the realization closing well.
Its middle gear 2 links to each other with hand wheel shaft 5 by linking bond 14.Gear 6 links to each other with the nut 7 of ball-square (ladder) shape screw-drive mechanism by linking bond 13.Contact when having on end face and the hydraulic lock 16 of close hydraulic lock 16 of optical axis 11 of ball-square (ladder) shape helical structure axle 17 work of locking inclined-plane.The effect of hand wheel shaft 5 end face locking nuts 15 is to keep the correct link position of gear 2.
The structure that has the optical axis 11 of ball-square (ladder) shape helical structure can be divided into four parts, be optical axis 11 wherein with inclined-plane axle 17 contacted positions, optical axis 11 mid portions are ball screw 12, it is square (ladder) shape spiral 9 near the outer end, and the outer end of optical axis 11 then stops that for having optical axis 11 rotates into the step 8 of nut 7.Wherein the ball screw 12 of the optical axis 11 of the right-hand component of the manual locking device of spiral and transmission mechanism combination and the rotation direction of square (ladder) shape spiral 9 are dextrorotation, and the ball screw 12 of the optical axis 11 of the left-hand component of the manual locking device of spiral and transmission mechanism combination and the rotation direction of square (ladder) shape helical structure 9 then are left-handed.Hand wheel shaft 5, gear 2 interconnect by sliding bearing 4 and bearing support 3.Having guiding docks with the correct of inclined-plane axle 17 of hydraulic lock 16 with the retainer shaft light 11 that act as of the axle sleeve 10 of hermetically-sealed construction.
When wherein optical axis 11 produced axially-movable, at first ball screw 12 work reached with rolling friction replacement sliding friction, quicken preventer and move to the drilling rod position that is locked, and shorten the purpose of locking time, and these stage square (ladder) shape spiral 9 parts are work not; When the ram movement of preventer arrives the position of approach locking drilling rod, square (ladder) shape threaded portion on square (ladder) the shape spiral 9 is started working, mechanism carries simultaneously with ball screw, the locking of assurance blowout preventer manual, this moment, service load was mainly born by square (ladder) shape screw thread, and ball screw 12 plays auxiliary carrying.The thread rotary orientation of the optical axis 11 of left and right end is respectively left-handed and dextrorotation, to guarantee their two-way simultaneous motions simultaneously when working.Inclined-plane on optical axis 11 axial end shown in Fig. 1 be with hydraulic lock in the contact surface of lock shaft 17 pairing, the shape of this contact surface is decided according to the contact surface shape of actual hydraulic pressure lock.
Sliding bearing 4 can guarantee the handwheel smooth operation, the load when bearing gear drive simultaneously.
Having guiding keeps optical axis 11 to dock with the correct of inclined-plane axle 17 of hydraulic lock 16 with the acting as of axle sleeve 10 of hermetically-sealed construction.
Claims (3)
1. the manual locking device of spiral and transmission mechanism combination, by handwheel (1), gear (2), bearing support (3), sliding bearing (4), hand wheel shaft (5), gear (6), nut (7), step (8), square (ladder) shape spiral (9), axle sleeve (10), optical axis (11), ball screw (12), linking bond (13), linking bond (14), end face locking nut (15), hydraulic lock (16), inclined-plane axle (17), ram preventer (18) interconnects composition, it is characterized in that, the left side of device, right two ends are basic identical, and wherein left end is by handwheel (1), gear (2), hand wheel shaft (5), gear (6), nut (7), optical axis (11), linking bond (13), linking bond (14), hydraulic lock (16) and locking inclined-plane axle (17) interconnect composition; Right-hand member is then by gear (2), hand wheel shaft (5), gear (6), nut (7), optical axis (11), linking bond (13), linking bond (14), end face locking nut 15), hydraulic lock (16) is connected and combines with locking inclined-plane axle (17).
2, the manual locking device of a kind of spiral according to claim 1 and transmission mechanism combination, it is characterized in that, described optical axis (11) has ball-square (ladder) shape helical duct and is divided into four parts, optical axis (11) mid portion is ball screw (12), it is square (ladder) shape spiral (9) near the outer end, the outer end of optical axis (11) is step (8), wherein the rotation direction of the ball screw (12) of manual locking device right-hand component optical axis (11) and square (ladder) shape spiral (9) is dextrorotation, and the ball screw (12) of manual locking device left-hand component optical axis (11) and the rotation direction of square (ladder) shape spiral (9) then are left-handed.
3, the manual locking device of a kind of spiral according to claim 1 and transmission mechanism combination is characterized in that, hand wheel shaft (5), gear (2) interconnect by sliding bearing (4) and bearing support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200622090U CN201162520Y (en) | 2008-02-19 | 2008-02-19 | Manual locking device of screw and transmission mechanism combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200622090U CN201162520Y (en) | 2008-02-19 | 2008-02-19 | Manual locking device of screw and transmission mechanism combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162520Y true CN201162520Y (en) | 2008-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200622090U Expired - Fee Related CN201162520Y (en) | 2008-02-19 | 2008-02-19 | Manual locking device of screw and transmission mechanism combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162520Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742097A (en) * | 2014-01-03 | 2014-04-23 | 中国石油化工股份有限公司 | Hydraulic switch control device for wellhead blowout preventer |
| CN104912511A (en) * | 2015-06-24 | 2015-09-16 | 中国石油化工股份有限公司 | Automated manual blowout preventer locking device |
| CN108699897A (en) * | 2016-01-05 | 2018-10-23 | 诺布尔钻井服务股份有限公司 | The punch actuator that pressure servo-motor for well pressure control apparatus operates |
-
2008
- 2008-02-19 CN CNU2008200622090U patent/CN201162520Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742097A (en) * | 2014-01-03 | 2014-04-23 | 中国石油化工股份有限公司 | Hydraulic switch control device for wellhead blowout preventer |
| CN103742097B (en) * | 2014-01-03 | 2016-07-27 | 中国石油化工股份有限公司 | Hydraulic switch control device for wellhead blowout preventer |
| CN104912511A (en) * | 2015-06-24 | 2015-09-16 | 中国石油化工股份有限公司 | Automated manual blowout preventer locking device |
| CN108699897A (en) * | 2016-01-05 | 2018-10-23 | 诺布尔钻井服务股份有限公司 | The punch actuator that pressure servo-motor for well pressure control apparatus operates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20110219 |