CN203515386U - Power rat hole - Google Patents
Power rat hole Download PDFInfo
- Publication number
- CN203515386U CN203515386U CN201320614684.5U CN201320614684U CN203515386U CN 203515386 U CN203515386 U CN 203515386U CN 201320614684 U CN201320614684 U CN 201320614684U CN 203515386 U CN203515386 U CN 203515386U
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- pulley
- rat hole
- main body
- hole main
- fluid cylinder
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Abstract
The utility model relates to a treatment device for a drilling pipe, in particular to a power rat hole. The power rat hole comprises a rat hole body, a fixed pulley block installed on the rat hole body and a movable pulley block installed on the rat hole body and located below the fixed pulley block. A driving device driving the movable pulley block to move vertically is installed between the movable pulley block and the rat hole body. A centering device is further installed at the top end of the rat hole body. A buffer lifting device is installed in the rat hole body. The fixed pulley block, the movable pulley block and the buffer lifting device are connected through steel wire ropes. Mutually-matched pulleys in the movable pulley block and the fixed pulley block are located in the same plane. According to the power rat hole, eccentric wear of the steel wire ropes and the pulleys is avoided.
Description
Technical field
The utility model relates to a kind of drilling well pipe treating apparatus, relates in particular to a kind of dynamic rathole.
Background technology
dynamic rathole is a kind of automation pipe treatment facility on offshore oil natural gas exploration and development rig.Dynamic rathole is for interim storage pipe, and coordinates miscellaneous equipment to complete to unload the operation of pipe thribble.The major function of dynamic rathole comprises automatically transferring and hoisting puts into the drilling well pipe of rat hole, and rat hole can also arrive rat hole center by the pipe righting of putting into wherein in addition, so that miscellaneous equipment is accurately aimed at the pipe of putting into rat hole.
Existing dynamic rathole pulley is positioned at different planes, and the wire rope between fixed pulley group and running block and pulley place plane exist certain angle, and especially, when running block is during in stroke top, this angle is relatively large.Dynamic rathole, in the process of work, drives hydraulic oil cylinder driving running block to move up and down, and wire rope moves around assembly pulley.Because there is certain angle when wire rope moving assembly pulley and fixed pulley group, wire rope is understood the one-sided of wearing and tearing running block and fixed pulley group grooving in the process of motion, wire rope also can be because of angle problem serious wear simultaneously, have a strong impact on the application life of wire rope and assembly pulley, the frequent replacing of wire rope and pulley simultaneously can affect the progress of whole drilling well work, when having to change pulley or wire rope in time, may not cause due to the eccentric wear of pulley and wire rope serious accident.
Utility model content
The problem existing for prior art, goal of the invention of the present utility model is to provide a kind of dynamic rathole that can not cause wire rope and pulley to produce eccentric wear.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of dynamic rathole, it comprises rat hole main body, be arranged on the fixed pulley group in described rat hole main body, be arranged in described rat hole main body and be positioned at the running block of described fixed pulley group below, the drive unit that drives described running block to move up and down is installed between described running block and described rat hole main body, on described rat hole main body top, centralising device is also installed, in described rat hole main body, buffer lift device is installed, described fixed pulley group, described running block, between described buffer lift device, by wire rope, connect, described running block, the pulley cooperatively interacting in described fixed pulley group is in same plane, such set-up mode makes wire rope and pulley can not produce eccentric wear, has improved the application life of wire rope and assembly pulley, has reduced the probability that accident occurs.
As preferred version of the present utility model, all pulley is in same plane, and this mode is more satisfactory, and making whole dynamic rathole profile is a flat board.
As preferred version of the present utility model, described buffer lift device lower end is provided with hoisting board, described wire rope one end is connected with described hoisting board, described hoisting board is engaged in described rat hole body interior, when wire rope is during in relaxed state, buffer lift device is because deadweight drops to bottom of device, thereby moves up and down when driving buffer lift device elevator moving when drive unit drive pulley group, wire rope is tight, pulls buffer lift device to realize elevator moving.
As preferred version of the present utility model, described drive unit is the driving fluid cylinder of two same model, be symmetricly set in described rat hole main body both sides, be connected between two groups of identical pulleys and described rat hole main body of described running block, described driving fluid cylinder setting party is to being described running block moving direction, described in HYDRAULIC CONTROL SYSTEM, drive fluid cylinder synchronous operation, realize described running block along the slip of rat hole main body.As preferred version of the present utility model, described driving fluid cylinder comprises liquid cylinder piston bar, fluid cylinder rod chamber, cylinder barrel, fluid cylinder rodless cavity, described fluid cylinder rod chamber, described fluid cylinder rodless cavity are arranged in described cylinder barrel, described liquid cylinder piston bar stretches in described fluid cylinder rod chamber, described fluid cylinder rodless cavity is arranged on described fluid cylinder rod chamber below, by hydraulic system, the oil-feed of fluid cylinder rodless cavity and fluid cylinder rod chamber is controlled, realized the running that drives fluid cylinder.
As preferred version of the present utility model, described fixed pulley group is arranged on outside, described rat hole main body upper end, and described running block is arranged on outside, described rat hole main body middle part and can moves in described rat hole principal length direction.
As preferred version of the present utility model, described fixed pulley group comprises two groups of identical pulleys, is symmetrical in described rat hole main body and installs, and single group pulley comprises pulley A, pulley B, and pulley A is arranged on pulley B top, and the end face diameter of pulley A is greater than the end face diameter of pulley B;
Described running block comprises two groups of identical pulleys, be symmetrical in described rat hole main body and install, single group pulley comprises pulley C, pulley D, and pulley C is arranged on pulley D top, the end face diameter of pulley D is greater than the end face diameter of pulley C, and this set-up mode has been saved the space that pulley takies greatly.
As preferred version of the present utility model, described rat hole main body upper end is fixed in described wire rope one end, the other end is once through pulley C, pulley B, pulley D, pulley A, finally be connected with described hoisting board, described wire rope quantity is two, by above-mentioned set-up mode, is symmetricly set on described rat hole main body both sides, makes last total pulley than being 1:4, reduce stroke, be conducive to save space.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
Wire rope and pulley can not produce eccentric wear, have improved the application life of wire rope and assembly pulley, have reduced the probability that accident occurs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is elevation of the present utility model.
Fig. 3 is lateral view of the present utility model.
Fig. 4 is the structural representation that the utility model drives fluid cylinder.
Mark in figure: 1-rat hole main body, 11-upper flat plate, 2-fixed pulley group, 21-pulley A, 22-pulley B, 3-running block, 31-pulley C, 32-pulley D, 4-drives fluid cylinder, 41-liquid cylinder piston bar, 42-fluid cylinder rod chamber, 43-cylinder barrel, 44-fluid cylinder rodless cavity, 5-wire rope, 6-buffer lift device, 61-hoisting board, 7-centralising device.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
embodiment 1
According to Fig. 1, a kind of dynamic rathole, it comprises fixed pulley group 2, running block 3, centralising device 7, drive fluid cylinder 4, buffer lift device 6, rat hole main body 1, wire rope 5, described rat hole main body 1 is body, described running block 3, described fixed pulley group 2 is arranged in described rat hole main body 1, described centralising device 7 is arranged on described rat hole main body 1 top, described rat hole main body 1 top is provided with for rat hole main body 1 upper flat plate 11 of location is installed, described running block 3 and 1 of described rat hole main body are provided with described driving fluid cylinder 4, described rat hole main body 1 bottom is divided and is had groove, described buffer lift device 6 is arranged on described rat hole main body 1 inside, described fixed pulley group 2, described running block 3, between described buffer lift device 6, by wire rope 5, connect, it is characterized in that, described running block 3, the pulley cooperatively interacting in fixed pulley group 2 is in same plane, the cross-section at all pulleys 1/2nd thickness places is wherein in same plane.
In the present embodiment, described fixed pulley group 2 comprises two groups of identical pulleys, is symmetrical in described rat hole main body 1 and installs, and single group pulley comprises pulley A21, pulley B22, and pulley A21 is arranged on pulley B22 top, and the end face diameter of pulley A21 is greater than the end face diameter of pulley B22; Described running block 3 comprises two groups of identical pulleys, is symmetrical in described rat hole main body 1 and installs, and single group pulley comprises pulley C31, pulley D32, and pulley C31 is arranged on pulley D32 top, and the end face diameter of pulley D32 is greater than the end face diameter of pulley C31; Described fixed pulley group 2 is arranged on described running block 3 tops.
In the present embodiment, rat hole main body 1 can be installed location by its upper flat plate 11; Pulley A21 and pulley B22 are installed in rat hole main body 1 by bearing pin respectively, and pulley A21 and pulley B22 form fixed pulley group 2 and can around its bearing pin, rotate respectively; Running block 3 is installed on rat hole main body 1 both sides by slide block, can move up and down along rat hole main body 1, and pulley C31 is connected by bearing pin with movable pulley frame respectively with pulley D32, and can around its bearing pin, rotate respectively.
In the present embodiment, drive fluid cylinder 4 one end to be connected by bearing pin with running block 3, the other end is installed in rat hole main body 1 by bearing pin, drives fluid cylinder 4 can drive running block 3 to move up and down along rat hole main body 1; Wire rope 5 one end are fixed in rat hole main body 1, and the other end passes successively: the pulley C31 in running block 3, the pulley B22 in fixed pulley group 2, the pulley D32 in running block 3, the pulley A21 in fixed pulley group 2, final with buffer lift device 6 by being connected; Buffer lift device 6 is installed in rat hole main body 1, and is connected by bearing pin with wire rope 5, and the hoisting board 61 of buffer lift device 6 is positioned at the fluting of rat hole main body 1; Each four pulleys of rat hole both sides, four of left and right pulley is arranged symmetrically with, and one-sided four pulleys are arranged in a plane.
In the present embodiment, centralising device 7 is installed and rat hole main body 1 top, centralising device 7 centers and rat hole main body 1 centres, drive fluid cylinder 4 to comprise: liquid cylinder piston bar 41, fluid cylinder rod chamber 42, cylinder barrel 43, fluid cylinder rodless cavity 44, described fluid cylinder rod chamber 42, described fluid cylinder rodless cavity 44 are arranged in described cylinder barrel 43, and described liquid cylinder piston bar 41 stretches in described fluid cylinder rod chamber 42, and described fluid cylinder rodless cavity 44 is arranged on described fluid cylinder rod chamber 42 belows.
After having assembled successively, rat hole initial position drives fluid cylinder 4 in retracted mode, and buffer lift device 6 is positioned at rat hole extreme higher position.
When rat hole is transferred pipe, hydraulic system, to fluid cylinder rodless cavity 44 oil-feeds that drive fluid cylinder 4, drives the liquid cylinder piston bar 41 of fluid cylinder 4 to stretch out; Follow the extend action that drives fluid cylinder 4, running block 3 will move up along rat hole main body 1 along driving fluid cylinder 4 to drive, and wire rope 5 is in relaxed state, and buffer lift device 6 moves down owing to certainly focusing on the interior fluting along rat hole main body 1 of rat hole main body 1;
When driving the liquid cylinder piston bar 41 of fluid cylinder 4 to extend out to extreme position, drive fluid cylinder 4 to stop action, buffer lift device 6 comes downwards to extreme position and stops, and rat hole completes transfers pipe action, and while transferring pipe, rat hole centralising device 7 is always in open mode.
When rat hole hoists pipe, hydraulic system is to fluid cylinder rod chamber 42 oil-feeds that drive fluid cylinder 4, drive the liquid cylinder piston bar 41 of fluid cylinder 4 to retract, follow the retract action that drives fluid cylinder 4, the driven fluid cylinder 4 of running block 3 drives, along rat hole main body 1, move down, wire rope 5 is in the state of furthering, being accompanied by running block 3 moves down, the fast end of wire rope 5 is driven to movement, the fast end of wire rope 5 moves up drive buffer lift device 6 in rat hole main body 1, the pipe of putting into rat hole main body 1 is cushioned jack up unit 6 simultaneously and drives along the fluting of rat hole main body 1 and move up.
When driving the liquid cylinder piston bar 41 of fluid cylinder 4 to be retracted to initial position, drive fluid cylinder 4 to stop action, buffer lift device 6 goes upward to extreme higher position and stops, rat hole completes the pipe action that hoists, and rat hole completes and hoists after action, and centralising device 7 steps up pipe, for connecting pipe, prepare, after connection pipe completes, centralising device 7 is opened, and unclamps pipe.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a dynamic rathole, it comprises rat hole main body, be arranged on the fixed pulley group in described rat hole main body, be arranged in described rat hole main body and be positioned at the running block of described fixed pulley group below, the drive unit that drives described running block to move up and down is installed between described running block and described rat hole main body, on described rat hole main body top, centralising device is also installed, in described rat hole main body, buffer lift device is installed, described fixed pulley group, described running block, between described buffer lift device, by wire rope, connect, it is characterized in that, described running block, the pulley cooperatively interacting in described fixed pulley group is in same plane.
2. a kind of dynamic rathole according to claim 1, is characterized in that, all pulley is in same plane.
3. a kind of dynamic rathole according to claim 2, is characterized in that, described fixed pulley group is arranged on outside, described rat hole main body upper end, and described running block is arranged on outside, described rat hole main body middle part and can moves in described rat hole principal length direction.
4. a kind of dynamic rathole according to claim 3, is characterized in that, described fixed pulley group comprises two groups of identical pulleys, being symmetrical in described rat hole main body installs, single group pulley comprises pulley A, pulley B, and pulley A is arranged on pulley B top, and the end face diameter of pulley A is greater than the end face diameter of pulley B;
Described running block comprises two groups of identical pulleys, is symmetrical in described rat hole main body and installs, and single group pulley comprises pulley C, pulley D, and pulley C is arranged on pulley D top, and the end face diameter of pulley D is greater than the end face diameter of pulley C.
5. a kind of dynamic rathole according to claim 3, it is characterized in that, described drive unit is the driving fluid cylinder of two same model, be symmetricly set in described rat hole main body both sides, be connected between two groups of identical pulleys and described rat hole main body of described running block, described driving fluid cylinder setting party is to being described running block moving direction.
6. a kind of dynamic rathole according to claim 1, is characterized in that, described buffer lift device lower end is provided with hoisting board, and described wire rope one end is connected with described hoisting board, and described hoisting board is engaged in described rat hole body interior.
7. a kind of dynamic rathole according to claim 6, it is characterized in that, described rat hole main body upper end is fixed in described wire rope one end, the other end is once through pulley C, pulley B, pulley D, pulley A, finally be connected with described hoisting board, described wire rope quantity is two, by above-mentioned set-up mode, is symmetricly set on described rat hole main body both sides.
8. a kind of dynamic rathole according to claim 5, it is characterized in that, described driving fluid cylinder comprises liquid cylinder piston bar, fluid cylinder rod chamber, cylinder barrel, fluid cylinder rodless cavity, described fluid cylinder rod chamber, described fluid cylinder rodless cavity are arranged in described cylinder barrel, described liquid cylinder piston bar stretches in described fluid cylinder rod chamber, and described fluid cylinder rodless cavity is arranged on described fluid cylinder rod chamber below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614684.5U CN203515386U (en) | 2013-09-30 | 2013-09-30 | Power rat hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614684.5U CN203515386U (en) | 2013-09-30 | 2013-09-30 | Power rat hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515386U true CN203515386U (en) | 2014-04-02 |
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ID=50374333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320614684.5U Expired - Lifetime CN203515386U (en) | 2013-09-30 | 2013-09-30 | Power rat hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515386U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929542A (en) * | 2015-05-28 | 2015-09-23 | 湖北江汉建筑工程机械有限公司 | Power rat hole device applicable to butting strings of well drilling platforms |
| CN106837211A (en) * | 2017-03-04 | 2017-06-13 | 烟台杰瑞石油装备技术有限公司 | A kind of horizontal sliding formula dynamic rathole device |
| CN112096316A (en) * | 2020-08-11 | 2020-12-18 | 四川宏华石油设备有限公司 | Power rat hole device |
| CN109138871B (en) * | 2018-07-31 | 2021-11-30 | 中石化石油工程技术服务有限公司 | Hydraulic clamping and lifting device for rat hole of drilling tool |
-
2013
- 2013-09-30 CN CN201320614684.5U patent/CN203515386U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929542A (en) * | 2015-05-28 | 2015-09-23 | 湖北江汉建筑工程机械有限公司 | Power rat hole device applicable to butting strings of well drilling platforms |
| CN106837211A (en) * | 2017-03-04 | 2017-06-13 | 烟台杰瑞石油装备技术有限公司 | A kind of horizontal sliding formula dynamic rathole device |
| CN109138871B (en) * | 2018-07-31 | 2021-11-30 | 中石化石油工程技术服务有限公司 | Hydraulic clamping and lifting device for rat hole of drilling tool |
| CN112096316A (en) * | 2020-08-11 | 2020-12-18 | 四川宏华石油设备有限公司 | Power rat hole device |
| CN112096316B (en) * | 2020-08-11 | 2022-01-11 | 四川宏华石油设备有限公司 | Power rat hole device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |