CN213116239U - Claw disc locking device for rotary blowout preventer - Google Patents
Claw disc locking device for rotary blowout preventer Download PDFInfo
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- CN213116239U CN213116239U CN202021898469.9U CN202021898469U CN213116239U CN 213116239 U CN213116239 U CN 213116239U CN 202021898469 U CN202021898469 U CN 202021898469U CN 213116239 U CN213116239 U CN 213116239U
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Abstract
The utility model provides a claw disk locking device for a rotary blowout preventer, which comprises a shell, a gland and a plurality of locking components, wherein, a plurality of shell built-in holes are arranged on the inner wall of the shell, a plurality of openings are radially arranged on the outer wall of the shell, and the plurality of openings and the plurality of shell built-in holes are in one-to-one correspondence and are communicated; each locking component in the plurality of locking components comprises a claw disc screw, a claw disc support screw and a claw disc, wherein the claw disc is arranged in a shell built-in hole, the claw disc screw and the claw disc support screw are arranged in a hole corresponding to the shell built-in hole, the claw disc screw is fixed with the hole and enters the shell built-in hole to be fixed with the claw disc, a through hole is axially formed in the claw disc screw, and the claw disc support screw penetrates through the through hole to be connected with the claw disc; the claw disc is provided with a first fixing part, the gland is provided with a second fixing part, and the first fixing part and the second fixing part can be matched with each other. The utility model has the advantages of easy dismounting, reduced labor intensity and safe operation in the working site.
Description
Technical Field
The utility model relates to an oil industry bores and adopts equipment technical field, particularly, relates to a rotatory claw dish locking device for blowout preventer.
Background
At present, in the rotary blowout preventer applied to the market, the connection between the shell and the rotary assembly generally adopts the connection form of a hoop. The clamp connection mode has the advantages of convenience and rapidness in assembly and disassembly and the like. However, in some rotary blowout preventers used in certain applications, the minimum outer diameter of the blowout preventer is up to 1000mm (or more), and if a clamp is also used for connection, the clamp is bulky, heavy and neither economical nor practical. The structure of the rotary blowout preventer is also more complicated if ordinary bolting is used, and increases the overall height of the equipment, as well as significantly increasing operational risks. Accordingly, there is a need for an apparatus for coupling a housing and a rotating assembly of a large diameter rotary blowout preventer that effectively reduces the volume and weight of the overall rotary blowout preventer system, and is cost effective.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve at least one of the above-mentioned not enough of prior art existence. For example, an object of the present invention is to provide a claw disk locking device for a rotary blowout preventer, which can replace a clip to fixedly connect a housing and a gland and can reduce the weight and volume of the rotary blowout preventer.
In order to achieve the purpose, the utility model provides a rotatory claw dish locking device for blowout preventer. The claw disc locking device comprises a shell, a gland and a plurality of locking components, wherein a plurality of shell built-in holes are formed in the inner wall of the shell, a plurality of open holes are formed in the outer wall of the shell along the radial direction, and the open holes are in one-to-one correspondence with and communicated with the shell built-in holes; each locking component in the plurality of locking components comprises a group of claw disc screws, claw disc support screws and claw discs, wherein the claw discs are arranged in the shell built-in holes, the claw disc screws and the claw disc support screws are arranged in the holes corresponding to the shell built-in holes, the claw disc screws are arranged in the holes and enter the shell built-in holes to be in contact with the claw discs so as to push the claw discs to move towards the gland to be matched with the gland, the claw disc screws can be fixed with the openings, through holes are axially formed in the claw disc screws, and one ends of the claw disc support screws penetrate through the through holes to be connected with the claw discs; the claw disc is provided with a first fixing part, the gland is provided with a second fixing part, and the gland and the shell are fixed through the matching of the first fixing part and the second fixing part.
The utility model discloses an exemplary embodiment, the quantity of a plurality of casing built-in holes and trompil can be 2 ~ 6, 2 ~ 6 casing built-in holes and trompil evenly set up along casing circumference.
In an exemplary embodiment of the invention, the outer diameter of the housing may be larger than 1000 mm.
In an exemplary embodiment of the present invention, the claw disk locking device may further include a first sealing member disposed between the inner wall of the housing and the outer wall of the gland.
In an exemplary embodiment of the present invention, the jaw plate locking device may further include a second sealing member disposed between the jaw plate screw and the open hole.
In an exemplary embodiment of the present invention, the first fixing portion may be a tooth, and the second fixing portion may be a groove, through which the gland and the housing are fixed in cooperation with the engaging groove.
The utility model discloses an exemplary embodiment, the screw hole can be opened on the claw dish, the claw dish is strutted the screw and is provided with the screw thread on the one end outer wall that the claw dish is connected, and claw dish is strutted the screw and is passed through threaded connection with the claw dish.
In an exemplary embodiment of the present invention, the claw disk support screw may be a socket head cap screw.
Compared with the prior art, the beneficial effects of the utility model can include at least one item in following content:
(1) the large-diameter rotary blowout preventer used in specific occasions, particularly the rotary blowout preventer with the outer diameter larger than 1000mm, can effectively reduce the volume and the weight of the whole rotary blowout preventer system and save the cost;
(2) the device has the advantages of convenient and labor-saving disassembly and assembly on the working site, capability of effectively reducing labor intensity, safe and quick operation and the like.
Drawings
Fig. 1 shows a schematic structural view of a claw disk locking device for a rotary blowout preventer according to an exemplary embodiment of the present invention;
FIG. 2 shows a cross-sectional view taken along line A-A of FIG. 1;
figure 3 shows an enlarged view of a portion of the locking element of figure 1.
The reference numerals are explained below:
1-shell, 2-gland, 3-claw disk screw, 4-claw disk support screw, 5-claw disk, 6-first sealing element and 7-second sealing element.
Detailed Description
Hereinafter, the claw disk locking device for the rotary blowout preventer according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
Fig. 1 shows a schematic structural view of a claw disk locking device for a rotary blowout preventer according to an exemplary embodiment of the present invention; FIG. 2 shows a cross-sectional view taken along line A-A of FIG. 1; figure 3 shows an enlarged view of a portion of the locking element of figure 1.
In an exemplary embodiment of the present invention, the claw disk locking device for a rotary blowout preventer may include a housing, a gland, and a plurality of locking members, wherein a plurality of housing built-in holes are provided on an inner wall of the housing, a plurality of openings are radially provided on an outer wall of the housing, and the plurality of openings correspond to and communicate with the plurality of housing built-in holes one to one. Specifically, as shown in fig. 1, the claw disk locking device for the rotary blowout preventer includes a housing 1 and a gland 2 provided in the housing 1, and three locking members uniformly distributed along a circumference to fixedly connect the housing 1 and the gland 2. The shell 1 is a circular cylinder, a plurality of shell built-in holes are formed in the inner wall of the cylinder along the radial direction, a plurality of open holes are formed in the outer wall of the cylinder, and each open hole in the plurality of open holes corresponds to and is communicated with one shell built-in hole in the plurality of shell built-in holes in a one-to-one mode. Here, the outer diameter of the housing 1 may be greater than 1000 mm. When the outer diameter of the shell 1 is larger than 1000mm, the clamp is connected, the size of the clamp is large, and the clamp is very heavy and is neither economical nor practical. The quantity of a plurality of casing built-in holes and trompil can be 2 ~ 6, 2 ~ 6 casing built-in holes and trompil evenly set up along casing circumference. As shown in fig. 1, 3 case built-in holes and open holes are uniformly arranged along the case circumference.
Each locking component in the plurality of locking components comprises a group of claw disc screws, claw disc support screws and claw discs, wherein the claw discs are arranged in the shell built-in holes, the claw disc screws and the claw disc support screws are arranged in the holes corresponding to the shell built-in holes, the claw disc screws are arranged in the holes and enter the shell built-in holes to be in contact with the claw discs so as to push the claw discs to move towards the gland to be matched with the gland, the claw disc screws can be fixed with the openings, through holes are axially formed in the claw disc screws, and one ends of the claw disc support screws penetrate through the through holes to be connected with the claw discs; the claw disc is provided with a first fixing part, the gland is provided with a second fixing part, and the gland and the shell are fixed through the matching of the first fixing part and the second fixing part. Specifically, as shown in fig. 2, the locking means is composed of a claw disk screw 3, a claw disk support screw 4, and a claw disk 5. Wherein the claw disk 5 is arranged in the housing built-in hole, the shape of the claw disk 5 matches the shape of the housing built-in hole and the claw disk 5 can move in the housing built-in hole along the radial direction of the housing 1. The claw disk screw 3 is arranged in the open hole in the outer wall of the shell 1 and fixed with the shell 1, and one end of the claw disk screw 3 arranged in the opening enters the built-in hole of the shell to be contacted with the outer wall of the claw disk 5, so that the claw disk 5 is pushed to move towards the gland 2 to form a fit with the gland 2, and the claw disk 5 and the gland 2 are fixed. A through hole is formed in the claw disc screw 3 along the axis, and one end of the claw disc support screw 4 penetrates through the through hole and then is connected with the claw disc 5. For example, threaded holes may be formed in the claw disk 5, threads may be formed on an outer wall of one end of the claw disk support screw 4 connected to the claw disk 5, and the claw disk support screw 4 is connected to the claw disk 5 through the threads. One of the claw disk 5 and the gland 2 contact is served and is provided with first fixed part, be provided with on the gland 2 outer wall with first fixed part assorted second fixed part, realize casing 1 and gland 2 fixed through the cooperation of first fixed part and second fixed part to realize casing 1 and with gland 2 fixed connection's rotary assembly's fixed connection. For example, as shown in fig. 2 and 3, the first fixing portion may be an engaging tooth, and the second fixing portion may be an engaging groove, and the cover and the housing are locked by the engagement of the engaging tooth with the engaging groove to connect the housing with the swivel assembly. However, the present invention is not limited thereto, and the locking member may have other structures as long as the housing can be fixedly connected to the gland.
In the present exemplary embodiment, as shown in fig. 3, the jaw plate locking device may further include a first sealing member 6 disposed between an inner wall of the housing 1 and an outer wall of the gland 2. The jaw plate locking device may further comprise a second seal 7 disposed between the jaw plate screw 3 and the aperture. By providing the first seal 6 and the second seal 7, the sealing performance of the rotary blowout preventer may be improved.
In the present exemplary embodiment, the claw disk support screw 4 may be a socket head cap screw. The claw disc support screw 4 is conveniently detached by arranging the claw disc support screw 4 with the hexagon socket head cap screw.
When the sealing device is used, firstly, the shell 1 is flatly placed on the ground, then the claw disc 5 is arranged in a shell built-in hole of the shell 1, the gland 2 or a rotating assembly fixedly assembled with the gland 2 is arranged in the shell 1, the claw disc screw 3 provided with the second sealing element 7 is screwed into an open hole of the shell 1, the claw disc screw 3 pushes the claw disc 5, meshing teeth of the claw disc 5 are tightly matched with meshing grooves of the gland 2, then the claw disc support screw 4 is screwed into a threaded hole in the claw disc 5 through the claw disc screw 3, and the shell 1 and the gland 2 can be fixed by screwing. If the gland 2 or the internal parts of the rotating assembly fixedly assembled with the gland 2 need to be taken out of the shell 1, the claw disc support screws 4 are only required to be screwed out, then the claw disc screws 3 are screwed out of the shell 1, the claw disc support screws 4 are screwed into threaded holes in the claw discs 5, the claw discs 5 are pulled into shell built-in holes of the shell 1, and the meshing teeth of the claw discs 5 are disengaged from the meshing grooves of the gland 2, so that the gland 2 or the internal parts of the rotating assembly fixedly assembled with the gland 2 can be taken out.
To sum up, the beneficial effects of the utility model include at least one of following:
(1) the large-diameter rotary blowout preventer used in specific occasions, particularly the rotary blowout preventer with the outer diameter larger than 1000mm, can effectively reduce the volume and the weight of the whole rotary blowout preventer system and save the cost;
(2) the device has the advantages of convenient and labor-saving disassembly and assembly on the working site, capability of effectively reducing labor intensity, safe and quick operation and the like.
Although the present invention has been described above in connection with exemplary embodiments and the accompanying drawings, it will be apparent to those of ordinary skill in the art that various modifications may be made to the above-described embodiments without departing from the spirit and scope of the claims.
Claims (8)
1. A claw-disk locking device for a rotary blowout preventer, which is characterized by comprising a housing, a gland and a plurality of locking components, wherein,
the inner wall of the shell is provided with a plurality of shell built-in holes, the outer wall of the shell is provided with a plurality of openings along the radial direction, and the plurality of openings are in one-to-one correspondence with and communicated with the plurality of shell built-in holes;
each of the plurality of locking members comprises a set of jaw plate screws, jaw plate support screws, and jaw plates, wherein,
the claw disc is arranged in the shell built-in hole, the claw disc screw and the claw disc support screw are arranged in the open hole corresponding to the shell built-in hole, the claw disc screw is arranged in the open hole and enters the shell built-in hole to be in contact with the claw disc so as to push the claw disc to move towards the gland and form fit with the gland, the claw disc screw can be fixed with the opening, a through hole is axially arranged on the claw disc screw, and one end of the claw disc support screw penetrates through the through hole to be connected with the claw disc;
the claw disc is provided with a first fixing part, the gland is provided with a second fixing part, and the gland and the shell are fixed through the matching of the first fixing part and the second fixing part.
2. The claw disk locking device for the rotary blowout preventer according to claim 1, wherein the number of the plurality of the housing built-in holes and the plurality of the openings is 2 to 6, and the 2 to 6 housing built-in holes and the plurality of openings are uniformly arranged along the circumferential direction of the housing.
3. The dog plate locking apparatus for a rotary blowout preventer of claim 1, wherein the housing has an outer diameter greater than 1000 mm.
4. The dog plate locking device for a rotary blowout preventer of claim 1, further comprising a first seal disposed between an inner wall of the housing and an outer wall of the gland.
5. The claw disk locking apparatus for a rotary blowout preventer of claim 1, further comprising a second seal disposed between the claw disk screw and the opening.
6. The claw disc locking device for the rotary blowout preventer according to claim 1, wherein the first fixing portion is a meshing tooth, and the second fixing portion is a meshing groove, and the gland and the housing are fixed by engagement of the meshing tooth with the meshing groove.
7. The claw-disc locking device for the rotary blowout preventer according to claim 1, wherein the claw disc is provided with a threaded hole, the outer wall of one end of the claw-disc supporting screw connected with the claw disc is provided with threads, and the claw-disc supporting screw is connected with the claw disc through the threads.
8. The claw-disk locking device for a rotary blowout preventer according to claim 1, wherein the claw-disk support screw is an allen screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898469.9U CN213116239U (en) | 2020-09-02 | 2020-09-02 | Claw disc locking device for rotary blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898469.9U CN213116239U (en) | 2020-09-02 | 2020-09-02 | Claw disc locking device for rotary blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213116239U true CN213116239U (en) | 2021-05-04 |
Family
ID=75659019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021898469.9U Active CN213116239U (en) | 2020-09-02 | 2020-09-02 | Claw disc locking device for rotary blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213116239U (en) |
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2020
- 2020-09-02 CN CN202021898469.9U patent/CN213116239U/en active Active
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