CN207063941U - A kind of mechanical locking drill stem fixed clamp - Google Patents
A kind of mechanical locking drill stem fixed clamp Download PDFInfo
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- CN207063941U CN207063941U CN201720852241.8U CN201720852241U CN207063941U CN 207063941 U CN207063941 U CN 207063941U CN 201720852241 U CN201720852241 U CN 201720852241U CN 207063941 U CN207063941 U CN 207063941U
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- fixed clamp
- drill stem
- stud
- dead card
- stem fixed
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Abstract
A kind of oilfield drilling well blowout preventing device is the utility model is related to, especially a kind of mechanical locking drill stem fixed clamp for preventing that drilling tool from scurrying out to outside well.Including dead card body, dead card body is put together by two or more pieces of dead card component, and one end of dead card component is hinged, and the other end is connected with locking system；Mechanical interlock mechanism is provided with the locking system.The utility model is locked, it is not necessary to be passed through hydraulic oil always to keep the locking of dead card body, once added safety and stability, while in-site installation and use are simple and convenient during drilling tool works by mechanical locking mode to dead card body.
Description
Technical field
A kind of oilfield drilling well blowout preventing device is the utility model is related to, it is especially a kind of to prevent what drilling tool from scurrying out to outside well
Mechanical locking drill stem fixed clamp.
Background technology
In the exploitation and Exploration Domain of oil gas field, when wellbore construction personnel obtain to various pressure oil-gas reservoirs, well
Bottom pressure applies an active force greatly pushed out to drilling fluid and drilling tool.When bottom pressure is more than what driller applied
Well kick or blowout phenomenon just occur during equilibrant force.At this moment well head has special preventer, prevents in well liquid from surface of drill stem
Outwards spray, and drilling tool typically has interior jet-preventing tool to prevent that liquid is altered upwards from drilling tool water hole in well.But at this moment borehole pressure
It may proceed to raise, drilling tool is altered upwards just as the liquid cylinder piston bar of a pressure-bearing.Now if taking no action to be easy for causing to put
Spray apparatus damages, and the drilling tool of several kms can all spray well head and cause Oil/gas Well blowout.The life of related personnel can seriously be jeopardized
Safety, and bring huge economic losses.
In order to solve the above-mentioned technical problem, Authorization Notice No. CN204591201U, authorized announcement date 2015.08.26
Chinese utility model patent disclose a kind of drill stem fixed clamp, including dead card body, dead card body is by two or more pieces of dead
Card component is put together, it is characterised in that：One end of dead card component is hinged, and the other end is connected with hydraulic Lock device.
The drill stem fixed clamp is by always toward being passed through hydraulic pressure to lock dead card component in hydraulic Lock device, though the drill stem fixed clamp
Can so realize prevents drilling tool from being gone here and there out to outside well, but it is non-to be passed through requirement of the hydraulic pressure for hydraulic system and fluid pressure line always
Chang Gao, if hydraulic system or fluid pressure line break down and pressure release during drilling well, it may result in drill stem fixed clamp and loosen very
Function is held tightly to losing, and dead card is reduced the pressure of drilling tool and is risen to entirely without pressure, the accident for causing drilling tool to be gone here and there out to outside well
Occur.
Utility model content
The purpose of this utility model is, for problems of the prior art, proposes that a kind of mechanical locking drilling rod is dead
Card, during drilling tool works, dead card body is locked by mechanical locking mode, it is not necessary to be passed through hydraulic oil always
To keep the locking of dead card body, safety and stability is added, while in-site installation and use are simple and convenient.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of mechanical locking drill stem fixed clamp, including dead card body, dead card body are spelled by two or more pieces of dead card component
Conjunction forms, and one end of dead card component is hinged, and the other end is connected with locking system；Machinery is provided with the locking system
Retaining mechanism.
The mechanical interlock mechanism includes stud, and stud is arranged in screw, and stud outer wall is provided with to be engaged with screw
Screw thread, screw is arranged in locking system.
The mechanical interlock mechanism also includes hydraulic motor, and hydraulic motor includes drive shaft, and drive shaft drives stud in spiral shell
Moved in hole.
The stud has axis hole and groove close to the end set of drive shaft, and axis hole and groove are axially arranged along stud,
Groove is arranged at the side of axis hole；The end of drive shaft is fixedly installed driving key, and the end set of drive shaft is in axis hole,
Driving key is arranged in groove.
The groove for placing dead card component is provided between the locking system and dead card body, the screw is connected with groove.
The locking system also includes fluid cylinder, is provided with piston and spring in fluid cylinder, spring be arranged at piston and fluid cylinder it
Between, hydraulic pressure oil groove is formed between fluid cylinder and piston, hydraulic pressure oil groove is communicated with hydraulic pressure gateway.
Sealing block is additionally provided with the fluid cylinder, hydraulic pressure oil groove is formed between sealing block and piston.
The fluid cylinder is provided with two, and the hydraulic pressure oil groove in two fluid cylinders is connected by through hole.
The hydraulic pressure gateway is one, is arranged on sealing block.
Seal is provided between the piston and sealing block and fluid cylinder.
By adopting the above-described technical solution, the beneficial effects of the utility model are：
The utility model is locked to dead card body by mechanical locking mode, is not required to during drilling tool works
Hydraulic oil is passed through always to keep the locking of dead card body, add safety and stability, while in-site installation and use
It is simple and convenient.
Dead card component is subjected to locking by way of rotating stud, it is possible to achieve need not during drilling tool works
Again the operation that power can maintain extremely to block is provided for locking system.
Because situ of drilling well has flammable explosive gas, make situ of drilling well safer using hydraulic motor.Adopted with fluid cylinder
With identical power, without increasing other power sources newly, equipment is easy for installation.Torque Performance of Hydraulic Motor is big, without increase decelerator
Obtain high torque so that equipment is simple.Meanwhile hydraulic motor is also cooled constantly by hydraulic oil in the running, is not present
Overheat risk.
While hydraulic motor drives drive shaft turns, driving key is with drive shaft turns, while driving key drives stud
Rotate, stud can advance or retreat in screw during rotation, and stud is during advance or retrogressing, driving key
Slided in groove in stud axis hole, keeping the position of drive shaft and driving key relative to the static situation of locking system
Under, stud is advanced or is retreated.The driving force of drive shaft is passed to by stud by driving key, can allow the position of hydraulic motor
Keep constant, at the same do not allow yet hydraulic motor drive shaft directly and Stud connection, prevent the drive shaft of hydraulic motor directly to hold
By the axial force of stud, while locking system locking effect is ensured, stud is avoided to be damaged to hydraulic motor.
Before fluid motor-driven stud carries out locking to dead card component, hydraulic oil is first passed through into fluid cylinder, allows fluid cylinder
Interior piston compresses dead card component, then drives stud the dead card component of locking, to treat that stud is completed to dead card in screw internal rotation again
After the locking of component, the hydraulic pressure in fluid cylinder is released.Before fluid motor-driven stud is cancelled to the locking of dead card component, first
Hydraulic oil is passed through into fluid cylinder, the piston allowed in fluid cylinder compresses dead card component, then drives stud again in screw internal rotation, cancellation
To the locking of dead card component, after stud is cancelled to the locking of dead card component, the hydraulic pressure in fluid cylinder is released.By being passed through hydraulic pressure
Oil, the power that hydraulic motor needs to provide in driving stud during locking and opening is reduced, reduce the work(of hydraulic motor
Rate, save the energy.Also make the locking of stud simultaneously and open more to facilitate.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the utility model structural perspective；
Fig. 2 is the utility model locking system structural representation；
Fig. 3 is the utility model bolt structure top view.
Marked in figure：1st, dead card component；2nd, locking system；3rd, sealing block；4th, mechanical interlock mechanism；5th, drive shaft；6th, pass
Dynamic key；7th, stud；8th, through hole；9th, seal；10th, piston；11st, spring；12nd, hydraulic pressure oil groove；13rd, axis hole；14th, groove；15th, spiral shell
Hole；16th, fluid cylinder；17th, hydraulic pressure gateway.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is necessary to explanation, term " on ", " vertical ", " interior ", the orientation of instruction such as " outer " or
Position relationship be based on orientation shown in the drawings or position relationship, or the invention product using when the orientation usually put or
Position relationship, or the orientation that usually understands of those skilled in the art or position relationship, it is for only for ease of the description present invention
Described with simplifying, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific orientation structure
Make and operate, therefore be not considered as limiting the invention.In addition, term " first ", " second " etc. are only used for distinguishing description,
And it is not intended that instruction or hint relative importance.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
Embodiment 1
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment includes：
A kind of mechanical locking drill stem fixed clamp, including：Dead card body, dead card body are by two or more pieces of dead card component 1
It is put together, one end of dead card component 1 is hinged, and other end locking system 2 connects；Set in the locking system 2
There is mechanical interlock mechanism 4.
The mechanical interlock mechanism 4 includes stud 7, and stud 7 is arranged in screw 15, and the outer wall of stud 7 is provided with and screw
15 screw threads being engaged, screw 15 are arranged in locking system 2.
The mechanical interlock mechanism 4 also includes hydraulic motor, and hydraulic motor includes drive shaft 5, and drive shaft 5 drives stud 7
Moved in screw 15.
The stud 7 has axis hole 13 and groove 14 close to the end set of drive shaft 5, and axis hole 13 and groove 14 are along stud
7 is axially arranged, and groove 14 is arranged at the side of axis hole 13；The end of drive shaft 5 is fixedly installed driving key 6, and drive shaft 5
In in axis hole 13, driving key 6 is arranged in groove 14 end set.
The groove for placing dead card component 1 is provided between the locking system 2 and dead card body, the screw 15 is connected with groove
It is logical.
The locking system 2 also includes fluid cylinder 16, is provided with piston 10 and spring 11 in fluid cylinder 16, spring 11 is arranged at work
Between plug 10 and fluid cylinder 16, hydraulic pressure oil groove 12 is formed between fluid cylinder 16 and piston, hydraulic pressure oil groove 12 is communicated with hydraulic pressure gateway 17.
Sealing block 3 is additionally provided with the fluid cylinder 16, hydraulic pressure oil groove 12 is formed between sealing block 3 and piston 10.
The fluid cylinder 16 is provided with two, and the hydraulic pressure oil groove 12 in two fluid cylinders 16 is connected by through hole 8.
The hydraulic pressure gateway 17 is one, is arranged on sealing block 3.
Seal 9 is provided between the piston 10 and sealing block 3 and fluid cylinder 16.
The utility model is locked to dead card body by mechanical locking mode, is not required to during drilling tool works
Hydraulic oil is passed through always to keep the locking of dead card body, add safety and stability, while in-site installation and use
It is simple and convenient.
Dead card component 1 is subjected to locking by way of rotating stud 7, it is possible to achieve be not required to during drilling tool works
To be that locking system 2 provides the operation that power can maintain extremely to block again.
Because situ of drilling well has flammable explosive gas, make situ of drilling well safer using hydraulic motor.With fluid cylinder 16
Using identical power, without increasing other power sources newly, equipment is easy for installation.Torque Performance of Hydraulic Motor is big, is without increase decelerator
It can obtain high torque so that equipment is simple.Meanwhile hydraulic motor is also cooled constantly by hydraulic oil in the running, does not deposit
In overheat risk.
While hydraulic motor drives the rotation of drive shaft 5, driving key 6 rotates with drive shaft 5, while driving key 6 drives
Stud 7 rotates, and stud 7 can advance or retreat in screw 15 during rotation, and stud 7 is in the process advanced or retreated
In, driving key 6 slides in the groove 14 in the axis hole 13 of stud 7, keep the position of drive shaft 5 and driving key 6 relative to
In the case that locking system 2 is static, stud 7 is set to advance or retreat.The driving force of drive shaft 5 is passed to by spiral shell by driving key 6
Post 7, the position of hydraulic motor can be allowed to keep constant, while also not allow the drive shaft 5 of hydraulic motor to be directly connected with stud 7,
Prevent the drive shaft 5 of hydraulic motor from directly bearing the axial force of stud 7, while 2 locking effect of locking system is ensured, avoid
Stud 7 damages to hydraulic motor.
Before fluid motor-driven stud 7 carries out locking to dead card component 1, hydraulic oil first is passed through into fluid cylinder 16, is allowed
Piston 10 in fluid cylinder 16 compresses dead card component 1, then drives stud 7 the dead card component 1 of locking, to treat in the internal rotation of screw 15 again
After stud 7 completes the locking to dead card component 1, the hydraulic pressure in fluid cylinder 16 is released.Cancel in fluid motor-driven stud 7 to dead
Before the locking of card component 1, hydraulic oil first is passed through into fluid cylinder 16, the piston 10 allowed in fluid cylinder 16 compresses dead card component 1, then
Stud 7 is driven to cancel the locking to dead card component 1, treat that stud 7 cancels the locking to dead card component 1 in the internal rotation of screw 15 again
Afterwards, the hydraulic pressure in fluid cylinder 16 is released.By being passed through hydraulic oil, hydraulic motor is reduced in driving stud 7 in locking and opening
During the power that provides is provided, reduce the power of hydraulic motor, save the energy.Also make the locking of stud 7 simultaneously and open more
Add conveniently.
Embodiment 2
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment includes：
A kind of mechanical locking drill stem fixed clamp, including：Dead card body, dead card body are by two or more pieces of dead card component 1
It is put together, one end of dead card component 1 is hinged, and other end locking system 2 connects；Set in the locking system 2
There is mechanical interlock mechanism 4.
Embodiment 3
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 2, and difference is：
The mechanical interlock mechanism 4 includes stud 7, and stud 7 is arranged in screw 15, and the outer wall of stud 7 is provided with and screw
15 screw threads being engaged, screw 15 are arranged in locking system 2.
Embodiment 4
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 3, and difference is：
The mechanical interlock mechanism 4 also includes hydraulic motor, and hydraulic motor includes drive shaft 5, and drive shaft 5 drives stud 7
Moved in screw 15.
Embodiment 5
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 4, and difference is：
The stud 7 has axis hole 13 and groove 14 close to the end set of drive shaft 5, and axis hole 13 and groove 14 are along stud
7 is axially arranged, and groove 14 is arranged at the side of axis hole 13；The end of drive shaft 5 is fixedly installed driving key 6, and drive shaft 5
In in axis hole 13, driving key 6 is arranged in groove 14 end set.
Embodiment 6
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 3, and difference is：
The groove for placing dead card component 1 is provided between the locking system 2 and dead card body, the screw 15 is connected with groove
It is logical.
Implement 7
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 6, and difference is：
The locking system 2 also includes fluid cylinder 16, is provided with piston 10 and spring 11 in fluid cylinder 16, spring 11 is arranged at work
Between plug 10 and fluid cylinder 16, hydraulic pressure oil groove 12 is formed between fluid cylinder 16 and piston, hydraulic pressure oil groove 12 is communicated with hydraulic pressure gateway 17.
Implement 8
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 7, and difference is：
Sealing block 3 is additionally provided with the fluid cylinder 16, hydraulic pressure oil groove 12 is formed between sealing block 3 and piston 10.
Implement 9
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 8, and difference is：
The fluid cylinder 16 is provided with two, and the hydraulic pressure oil groove 12 in two fluid cylinders 16 is connected by through hole 8.
Implement 10
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 9, and difference is：
The hydraulic pressure gateway 17 is one, is arranged on sealing block 3.
Implement 11
As a kind of preferred embodiment of the present utility model, with reference to Figure of description 1, accompanying drawing 2 and accompanying drawing 3, the present embodiment
A kind of mechanical locking drill stem fixed clamp is disclosed, the present embodiment is substantially the same manner as Example 8, and difference is：
Seal 9 is provided between the piston 10 and sealing block 3 and fluid cylinder 16.
Embodiment described above only expresses the embodiment of the application, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the application protection domain can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, on the premise of technical scheme design is not departed from, various modifications and improvements can be made, these belong to this
The protection domain of application.
Claims (10)
1. a kind of mechanical locking drill stem fixed clamp, including dead card body, dead card body is by two or more pieces of dead card component（1）Spell
Conjunction forms, dead card component（1）One end it is hinged, other end locking system（2）Connection；It is characterized in that：The lock
Locking apparatus（2）Inside it is provided with mechanical interlock mechanism（4）.
2. mechanical locking drill stem fixed clamp according to claim 1, it is characterised in that：The mechanical interlock mechanism（4）Including
Stud（7）, stud（7）It is arranged at screw（15）It is interior, stud（7）Outer wall is provided with and screw（15）The screw thread being engaged, screw
（15）It is arranged at locking system（2）It is interior.
3. mechanical locking drill stem fixed clamp according to claim 2, it is characterised in that：The mechanical interlock mechanism（4）Also wrap
Hydraulic motor is included, hydraulic motor includes drive shaft（5）, drive shaft（5）Drive stud（7）In screw（15）Interior motion.
4. mechanical locking drill stem fixed clamp according to claim 3, it is characterised in that：The stud（7）Close to drive shaft（5）
End set have axis hole（13）And groove（14）, axis hole（13）And groove（14）Along stud（7）It is axially arranged, groove（14）
It is arranged at axis hole（13）Side；Drive shaft（5）End be fixedly installed driving key（6）, and drive shaft（5）End set
In axis hole（13）It is interior, driving key（6）It is arranged at groove（14）It is interior.
5. mechanical locking drill stem fixed clamp according to claim 2, it is characterised in that：The locking system（2）With dead card originally
It is provided between body and places dead card component（1）Groove, the screw（15）It is connected with groove.
6. mechanical locking drill stem fixed clamp according to claim 5, it is characterised in that：The locking system（2）Also include liquid
Cylinder（16）, fluid cylinder（16）Inside it is provided with piston（10）And spring（11）, spring（11）It is arranged at piston（10）With fluid cylinder（16）It
Between, fluid cylinder（16）Hydraulic pressure oil groove is formed between piston（12）, hydraulic pressure oil groove（12）It is communicated with hydraulic pressure gateway（17）.
7. mechanical locking drill stem fixed clamp according to claim 6, it is characterised in that：The fluid cylinder（16）Inside it is additionally provided with close
Seal block（3）, sealing block（3）With piston（10）Between formed hydraulic pressure oil groove（12）.
8. mechanical locking drill stem fixed clamp according to claim 7, it is characterised in that：The fluid cylinder（16）Two are provided with,
Two fluid cylinders（16）In hydraulic pressure oil groove（12）Pass through through hole（8）It is connected.
9. mechanical locking drill stem fixed clamp according to claim 8, it is characterised in that：The hydraulic pressure gateway（17）For list
It is individual, it is arranged at sealing block（3）On.
10. mechanical locking drill stem fixed clamp according to claim 7, it is characterised in that：The piston（10）And sealing block（3）
With fluid cylinder（16）Between be provided with seal（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720852241.8U CN207063941U (en) | 2017-07-14 | 2017-07-14 | A kind of mechanical locking drill stem fixed clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720852241.8U CN207063941U (en) | 2017-07-14 | 2017-07-14 | A kind of mechanical locking drill stem fixed clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207063941U true CN207063941U (en) | 2018-03-02 |
Family
ID=61511822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720852241.8U Active CN207063941U (en) | 2017-07-14 | 2017-07-14 | A kind of mechanical locking drill stem fixed clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207063941U (en) |
-
2017
- 2017-07-14 CN CN201720852241.8U patent/CN207063941U/en active Active
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