CN204225833U - variable bore ram monomer - Google Patents

variable bore ram monomer Download PDF

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Publication number
CN204225833U
CN204225833U CN201420589758.9U CN201420589758U CN204225833U CN 204225833 U CN204225833 U CN 204225833U CN 201420589758 U CN201420589758 U CN 201420589758U CN 204225833 U CN204225833 U CN 204225833U
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CN
China
Prior art keywords
breach
large semi
iron plate
reducing
monomer
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Active
Application number
CN201420589758.9U
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Chinese (zh)
Inventor
冷波
马家增
陈建华
付永安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Zhongzhong Petroleum Machinery Co Ltd
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Chongqing Zhongzhong Petroleum Machinery Co Ltd
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Priority to CN201420589758.9U priority Critical patent/CN204225833U/en
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Publication of CN204225833U publication Critical patent/CN204225833U/en
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Abstract

The utility model discloses a kind of variable bore ram monomer, is installed with guiding strong bottom the flashboard body in this variable bore ram monomer; Top packing unit is installed on flashboard body, and the inner and the reducing glue core periphery of top packing unit are fixed, and the middle part of reducing glue in-core end face is provided with the small semicircle v notch v of a up/down perforation; The reducing glue core of small semicircle v notch v upper and lower is arranged with large semi-circular breach, and two large semi-circular breach is all circumferentially provided with radial direction and allows glue breach; End face and the bottom surface of reducing glue in-core end are installed with one piece of iron plate respectively, two large semi-circular breach cover by iron plate, and iron plate the inner has the semicircular indentations of a up/down perforation, the size of semicircular indentations is identical with large semi-circular breach, and both axial lines are on same straight line.Two the utility model docking formation variable bore ram assembly, flashboard assembly can seal the drilling rod of different-diameter within the scope of certain size, good airproof performance, thus realizes reducing sealing.

Description

Variable bore ram monomer
Technical field
The utility model belongs to oil-drilling field, specifically, particularly relates to a kind of variable bore ram monomer.
Background technology
Suction preventer is a kind of equipment conventional in oil drilling, and it is for sealing drilling rod, to prevent the pernicious gas in well from spraying, forms " blowout " phenomenon.Existing suction preventer is sizing preventer, can not reducing, and tracing it to its cause is that therefore flashboard assembly can not reducing, and flashboard assembly is docked by two flashboard monomers and forms.Therefore, need the flashboard assembly changing dimension when the drilling rod of different-diameter is sealed, complicated operation, effort, and need the flashboard assembly arranging sizes specification for subsequent use, can equipment cost be increased so again, be badly in need of solving above-mentioned technical barrier for this reason.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of variable bore ram monomer that can seal different-diameter drilling rod within the scope of certain size.
The technical solution of the utility model is as follows: a kind of variable bore ram monomer, it is characterized in that: this variable bore ram monomer comprises flashboard body (1) and top packing unit (3), wherein flashboard body (1) bottom is installed with guiding strong (2); Described top packing unit (3) is installed on flashboard body (1), the inner and reducing glue core (4) periphery of this top packing unit are fixed, and the middle part of reducing glue core (4) inner face is provided with the small semicircle v notch v (4a) of a up/down perforation; The reducing glue core (4) of described small semicircle v notch v (4a) upper and lower is arranged with a large semi-circular breach (4b), the axial line of these three breach on same straight line, and two large semi-circular breach (4b) is all circumferentially provided with radial direction and allows glue breach (4c); The end face that described reducing glue core (4) is inner and bottom surface are installed with one piece of iron plate (5) respectively, two described large semi-circular breach (4b) cover by this iron plate, and iron plate (5) the inner has the semicircular indentations of a up/down perforation, the size of this semicircular indentations is identical with described large semi-circular breach (4b), and both axial lines are on same straight line.
In the present case, the radius of described small semicircle v notch v (4a) is 10mm, and the radius of large semi-circular breach (4b) is 15mm.During use, by the flashboard assembly that two flashboard monomer docking formation one complete.When to diameter being the drilling rod sealing of 20mm, directly seal by small semicircle v notch v (4a); When the drilling rod of diameter between 20-30mm is sealed, at this moment by two Horizontal lock mandrels extruding reducing glue core (4), to allow large semi-circular breach (4b) that deformation occurs, and with the shaft close contact of drilling rod, to seal drilling rod, and the utility model can seal the drilling rod that maximum gauge is 30mm.
Adopt above technical scheme, two the utility model docking formation variable bore ram assembly, this flashboard assembly can seal the drilling rod of different-diameter within the scope of certain size, good airproof performance, thus realize reducing sealing, so just eliminate the trouble changing corresponding specification flashboard, the flashboard that also need not prepare plurality of specifications is for subsequent use, thus greatly improve functional performance of the present utility model, and this preventer structure is simple, easy to implement.
In the present case, the inner and reducing glue core (4) periphery of described top packing unit connect and fix, and the radial direction on described large semi-circular breach (4b) allows glue breach (4c) be string configuration.
Beneficial effect: two the utility model docking formation variable bore ram assembly, this flashboard assembly can seal the drilling rod of different-diameter within the scope of certain size, good airproof performance, thus realize reducing sealing, so just eliminate the trouble changing corresponding specification flashboard, the flashboard that also need not prepare plurality of specifications is for subsequent use, thus greatly improves functional performance of the present utility model, and this preventer structure is simple, easy to implement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of reducing glue core 4 in Fig. 1;
Fig. 3 is the A direction view of Fig. 2;
Fig. 4 is the B direction view of Fig. 2.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figures 1 to 4, this variable bore ram monomer, top packing unit 3, reducing glue core 4 and iron plate 5 strong 2 primarily of flashboard body 1, guiding is formed.Wherein, be installed with guiding strong 2 bottom flashboard body 1 by screw, this guiding strong 2 is preferably flat key.Described top packing unit 3 is installed on flashboard body 1, and the inner and reducing glue core 4 periphery of this top packing unit 3 connect and fix.Further, the middle part of reducing glue core 4 inner face is provided with the small semicircle v notch v 4a of a up/down perforation, and the radius of this small semicircle v notch v 4a elects 10mm as in the present embodiment.The reducing glue core 4 of described small semicircle v notch v 4a upper and lower is arranged with a large semi-circular breach 4b, the axial line of these two large semi-circular breach 4b and small semicircle v notch v 4a on same straight line, and the radius of large semi-circular breach 4b excellent be in the present embodiment 15mm.Further, two large semi-circular breach 4b being all circumferentially provided with radial direction allows glue breach 4c, this radial direction allow glue breach 4c be string configuration.
End face and the bottom surface of described reducing glue core 4 the inner are installed with one piece of iron plate 5 respectively, and two described large semi-circular breach 4b cover by this iron plate 5.Have the semicircular indentations (not marking in figure) of a up/down perforation in the inner of iron plate 5, the size of this semicircular indentations is identical with described large semi-circular breach 4b, and the axial line of these two breach is on same straight line.
The foregoing is only preferred embodiment of the present utility model; it is not restriction with the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (2)

1. a variable bore ram monomer, is characterized in that: this variable bore ram monomer comprises flashboard body (1) and top packing unit (3), and wherein flashboard body (1) bottom is installed with guiding strong (2); Described top packing unit (3) is installed on flashboard body (1), the inner and reducing glue core (4) periphery of this top packing unit are fixed, and the middle part of reducing glue core (4) inner face is provided with the small semicircle v notch v (4a) of a up/down perforation; The reducing glue core (4) of described small semicircle v notch v (4a) upper and lower is arranged with a large semi-circular breach (4b), the axial line of these three breach on same straight line, and two large semi-circular breach (4b) is all circumferentially provided with radial direction and allows glue breach (4c); The end face that described reducing glue core (4) is inner and bottom surface are installed with one piece of iron plate (5) respectively, two described large semi-circular breach (4b) cover by this iron plate, and iron plate (5) the inner has the semicircular indentations of a up/down perforation, the size of this semicircular indentations is identical with described large semi-circular breach (4b), and both axial lines are on same straight line.
2. variable bore ram monomer according to claim 1, it is characterized in that: the inner and reducing glue core (4) periphery on described top packing unit (3) connect and fix, and the radial direction on described large semi-circular breach (4b) allows glue breach (4c) be string configuration.
CN201420589758.9U 2014-10-13 2014-10-13 variable bore ram monomer Active CN204225833U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420589758.9U CN204225833U (en) 2014-10-13 2014-10-13 variable bore ram monomer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420589758.9U CN204225833U (en) 2014-10-13 2014-10-13 variable bore ram monomer

Publications (1)

Publication Number Publication Date
CN204225833U true CN204225833U (en) 2015-03-25

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CN201420589758.9U Active CN204225833U (en) 2014-10-13 2014-10-13 variable bore ram monomer

Country Status (1)

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CN (1) CN204225833U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405327A (en) * 2014-10-13 2015-03-11 重庆中重石油机械有限公司 Variable diameter ram monomer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405327A (en) * 2014-10-13 2015-03-11 重庆中重石油机械有限公司 Variable diameter ram monomer

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