CN220373176U - Stud assembling and disassembling tool for flange - Google Patents
Stud assembling and disassembling tool for flange Download PDFInfo
- Publication number
- CN220373176U CN220373176U CN202320938157.3U CN202320938157U CN220373176U CN 220373176 U CN220373176 U CN 220373176U CN 202320938157 U CN202320938157 U CN 202320938157U CN 220373176 U CN220373176 U CN 220373176U
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- China
- Prior art keywords
- cylinder part
- hole
- nut
- stud
- pressing plate
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- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to a stud bolt assembling and disassembling tool for a flange, which comprises the following components: the upper pressing plate is used for propping against the end wall of one end of the screw rod of the stud bolt, and is provided with an upper through hole; the lower pressing plate is used for propping against the end wall of the other end of the screw rod of the stud bolt, the lower pressing plate is provided with a lower through hole coaxial with the upper through hole, and the lower through hole is provided with an internal thread; the telescopic cylinder comprises a first cylinder part and a second cylinder part which is coaxially arranged with the first cylinder part, one end of the first cylinder part extends into the second cylinder part, the first cylinder part and the second cylinder part can move relatively in the axial direction, the other end of the first cylinder part is fixedly connected with the upper pressing plate, and the other end of the second cylinder part is fixedly connected with the lower pressing plate; and one end of the long screw is fixed with a screw cap, and the other end of the long screw is provided with an external thread matched with the internal thread. The stud bolt assembling and disassembling tool for the flange can fix the screw rod of the bolt so as to separate the nut and the screw rod which are fixed together due to corrosion from each other by relative rotation.
Description
Technical Field
The utility model relates to the field of oil and gas equipment, in particular to a stud bolt assembling and disassembling tool for a flange.
Background
In the oil gas exploitation process, various pipelines, equipment and the like are frequently used in the exploitation, conveying and other processes of an oil gas well, in the assembly modes of the pipelines and the equipment, the bolt connection is a common mode, the stud is the most common mode, if the stud is not maintained in place, the condition that screw threads are easy to rust and the like can occur under long-term windy and sunny conditions, when the flange is detached for overhauling and replacing a valve, the bolt needs to be detached, a nut at one end can be screwed in and out freely frequently, but the nut at the other end is rusted and fixed together with the bolt, so that the bolt rotates, the flange is tightened under the condition, the unscrewing length of the bolts at two sides is easy to be different, the whole tightening force of the bolt is influenced seriously, the safety risk is increased, and particularly in a production system, if the nuts at two ends cannot be unscrewed, the bolts cannot be taken out, and the whole valve cannot be taken out for overhauling or replacement, so that the normal production operation is seriously influenced.
Disclosure of Invention
The utility model provides a stud bolt assembling and disassembling tool for a flange, which can fix a screw bolt of a bolt so as to separate nuts fixed together due to corrosion from the screw bolt by relative rotation.
The stud bolt assembling and disassembling tool for flange of the utility model comprises:
the upper pressing plate is used for propping against the end wall of one end of the screw rod of the stud bolt, and is provided with an upper through hole;
the lower pressing plate is used for propping against the end wall of the other end of the screw rod of the stud bolt, the lower pressing plate is provided with a lower through hole coaxial with the upper through hole, and the upper through hole and/or the lower through hole are/is provided with internal threads;
the telescopic cylinder comprises a first cylinder part and a second cylinder part which is coaxially arranged with the first cylinder part, one end of the first cylinder part extends into the second cylinder part or one end of the second cylinder part extends into the first cylinder part, the first cylinder part and the second cylinder part can move relatively in the axial direction, the other end of the first cylinder part is fixedly connected with the upper pressing plate, and the other end of the second cylinder part is fixedly connected with the lower pressing plate;
the long screw penetrates into the upper through hole, the first barrel part, the second barrel part and the lower through hole, a nut is fixed at one end of the long screw, and an external thread matched with the internal thread is arranged at the other end of the long screw.
Preferably, the upper pressing plate is further provided with a sleeve having a nut space for accommodating a nut of the stud bolt, and a top wall of the nut space is adapted to be abutted against one end of the bolt.
Preferably, the sleeve has a mounting projection, and the upper pressure plate is provided with a mounting hole or a mounting groove into which the mounting projection is inserted, and the mounting projection is non-rotatably fitted with the mounting hole or the mounting groove.
Preferably, the cross sections of the mounting protrusions and the mounting holes are rectangular, and the outer walls of the mounting protrusions are in clearance fit with the inner walls of the mounting holes.
Preferably, the side wall of the inner wall of the sleeve has a shape that mates with the side wall of the outer wall of the nut such that the nut is not rotatable relative to the sleeve.
Preferably, the sleeve is formed together with the upper platen.
Preferably, the lower through hole is provided with an internal thread, and a nut is arranged at one end of the long screw extending out of the upper through hole.
Preferably, the diameter of the first cylinder is smaller than the diameter of the second cylinder, and one end of the first cylinder extends into one end of the second cylinder.
Compared with the prior art, the utility model has the following beneficial effects:
1. when the flange stud assembling and disassembling tool is used, the upper pressing plate is propped against the end wall of the upper end of the threaded rod of the stud, the lower pressing plate is propped against the end wall of the lower end of the threaded rod of the double stud, and in the process, relative axial movement occurs between the first cylinder part and the second cylinder part of the telescopic cylinder. The long screw rod penetrates into the upper through hole, the first barrel part, the second barrel part and the lower through hole, the external threads of the long screw rod are matched with the internal threads of the lower through hole, the lower screw rod is screwed, the nut of the long screw rod is abutted to the upper pressing plate, the relative positions of the first barrel part and the second barrel part are locked, the upper pressing plate and the lower pressing plate simultaneously extrude the screw rod of the stud bolt to the middle, then the screw rod is fixed by utilizing the wrench to rotate and fix the nut together due to corrosion of the screw rod of the stud bolt, the screw rod of the stud bolt is motionless, the nut rotates under the action of the wrench, so that the screw rod is separated from the nut, and the nut and the bolt can be detached or the nut can be adjusted to the set position of the screw rod to finish installation.
2. The upper pressing plate and the sleeve of the stud assembling and disassembling tool are split, the inner diameters of the sleeves can be made into different specifications, and when nuts of the stud are disassembled, the sleeves matched with the nuts in size can be selected, so that the tool can be used for disassembling and assembling the bolts of all specifications.
Drawings
Fig. 1 is a schematic view of a structure of a flange stud attaching and detaching tool according to an embodiment of the present utility model without a long screw.
Fig. 2 is a schematic view showing a structure of a long screw of a stud attaching and detaching tool for flanges according to an embodiment of the present utility model.
Reference numerals
1 an upper pressing plate, 11 an upper through hole, 12 a sleeve, 121 a nut space, 122 a mounting bulge and 13 a mounting groove;
2 lower pressing plate, 21 lower through hole;
3 a telescopic cylinder, 31 a first cylinder part, 32 a second cylinder part;
4 long screw rod, 41 screw cap;
5 stud, 51 screw, 5a,5b nut;
6, a flange is arranged on the upper part;
and 7, a lower flange.
Detailed Description
The utility model provides a stud bolt assembling and disassembling tool for a flange, wherein a stud bolt 5 is used for fixing an upper flange 6 and a lower flange 7 together, and the stud bolt assembling and disassembling tool for the flange comprises an upper pressing plate 1, a lower pressing plate 2, a telescopic cylinder 3 and a long screw rod 5 as shown in figures 1 and 2. One side of the upper platen 1 is used for abutting against an end wall of one end of a screw 51 of the stud bolt 5, and the upper platen 1 is provided with an upper through hole 11. The lower pressure plate 2 is used for abutting against the end wall of the other end of the screw 51 of the stud bolt 5, the lower pressure plate 2 is provided with a lower through hole 21 coaxial with the upper through hole 11, and the lower through hole 21 is provided with an internal thread. The telescopic cylinder 3 includes a first cylinder 31 and a second cylinder 32 coaxially disposed with the first cylinder 31, one end of the first cylinder 31 extends into the second cylinder 32 or one end of the second cylinder 32 extends into the first cylinder 31, in this embodiment, the diameter of the first cylinder 31 is smaller than that of the second cylinder 32, and one end of the first cylinder 31 extends into one end of the second cylinder 32, in other embodiments, the diameter of the first cylinder 31 may be larger than that of the second cylinder 32, and one end of the second cylinder 32 extends into one end of the first cylinder 31. Meanwhile, the first cylinder portion 31 and the second cylinder portion 32 may move relatively in the axial direction, the other end of the first cylinder portion 31 is fixedly connected with the upper platen 1, and the other end of the second cylinder portion 32 is fixedly connected with the lower platen 2. The long screw 4 penetrates into the upper through hole 11, the first barrel part 31, the second barrel part 32 and the lower through hole 21, one end of the long screw 4 extending out of the upper through hole 11 is fixed with a screw cap 41, and the other end is provided with an external thread matched with the internal thread of the lower through hole 21. Of course, in other embodiments, the positions of the nut 41 and the external thread of the long screw 4 may be reversed, while the internal thread is provided in the upper through hole 11.
When the tool is attached to or detached from the stud bolt 5 for flange according to the present utility model, as shown in fig. 1, the upper platen 1 is abutted against the end wall of the upper end of the screw rod 51 of the stud bolt 5, and the lower platen 2 is abutted against the end wall of the lower end of the screw rod 51 of the double stud bolt, and during this process, relative axial movement occurs between the first cylinder portion 31 and the second cylinder portion 32 of the telescopic cylinder 3. The long screw 4 is threaded into the upper through hole 11, the first barrel part 31, the second barrel part 32 and the lower through hole 21, the external thread of the long screw 4 is matched with the internal thread of the lower through hole 21, the long screw 4 is screwed, the nut 41 of the long screw 4 is pressed against the upper pressing plate 1, the relative positions of the first barrel part 31 and the second barrel part 32 are locked, the space position between the upper pressing plate 1 and the lower pressing plate 2 is also locked, the screw 51 is simultaneously pressed to the middle to fix the screw 51, the relative positions of the screw 5 can not be changed any more because the screw 5 and the nut 5a are in threaded connection, then the screw 51 of the screw 5 is rotated by a spanner to fix the nut 5b together by corrosion, the screw 51 of the screw 5 is not moved, the nut 5b is rotated under the action of the spanner, and the screw 51 is separated from the nut 5b, and the nut and the screw 5b is detached or the nut 5b is adjusted to the set position of the screw 51 to complete the installation.
In this embodiment, as shown in fig. 1, the upper platen 1 is further provided with a sleeve 12, the sleeve 12 has a nut space 121 for accommodating a nut 5a of the stud bolt 5, and a top wall of the nut space 121 is for being abutted against one end of the bolt. In this embodiment, the sleeve 12 has a mounting protrusion 122, the upper platen 1 is provided with a mounting hole or a mounting groove 13 into which the mounting protrusion 122 is inserted, and in this embodiment, the upper platen 1 is provided with a mounting groove 13, and the mounting protrusion 122 is non-rotatably engaged with the mounting groove 13. In this embodiment, the cross sections of the mounting groove 13 and the mounting protrusion 122 are rectangular, and a clearance fit is formed between the inner wall of the mounting groove 13 and the outer wall of the mounting protrusion 122. By arranging the upper pressure plate 1 and the sleeve 12 of the stud assembling and disassembling tool separately, and the inner diameter of the sleeve 12 can be made into different specifications, when the nut 5a of the stud 5 is unloaded, the sleeve 12 matched with the size of the nut 5a can be selected, so that the tool can be disassembled and assembled for bolts of all specifications.
The shape of the side wall of the inner wall of the sleeve 12 is adapted to the shape of the side wall of the nut 5a such that the nut 5a is not rotatable relative to the sleeve 12, e.g. the shape of the cross section of the sleeve 12 is set to be the same as the shape of the cross section of the nut 5a and such that a clearance fit is formed between the inner wall of the sleeve 12 and the outer wall of the nut 5. In this way, the screw 51 and the nut 5a of the stud bolt 5 can be fixed simultaneously by the sleeve 12. When the attaching and detaching tool is used, the screw rod 51 and the nut 5a of the bolt are rotated so that the nut 5a abuts against the upper surface of the upper flange 6 and the end wall of the upper end of the screw rod 51 is flush with the upper end of the nut 5a. The top wall of the sleeve 12 and the lower pressure plate 2 exert an axial force on the screw 51, and at the same time, since the nut 5a is screwed to the screw 51, the nut 5a fixed by the sleeve 12 so as not to be rotatable fixes the screw 51 from the circumferential direction, so that more stable fixation of the screw 51 can be realized. Alternatively, in other embodiments, the sleeve 12 is formed together with the upper platen 1, in which case platens with different specifications of sleeve 12 may be selected for different specifications of bolts.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent substitutions of the utility model will occur to those skilled in the art, which are within the spirit and scope of the utility model.
Claims (8)
1. A stud attaching and detaching tool for a flange, comprising:
the upper pressing plate is used for propping against the end wall of one end of the screw rod of the stud bolt, and is provided with an upper through hole;
the lower pressing plate is used for propping against the end wall of the other end of the screw rod of the stud bolt, the lower pressing plate is provided with a lower through hole coaxial with the upper through hole, and the upper through hole and/or the lower through hole are/is provided with internal threads;
the telescopic cylinder comprises a first cylinder part and a second cylinder part which is coaxially arranged with the first cylinder part, one end of the first cylinder part extends into the second cylinder part or one end of the second cylinder part extends into the first cylinder part, the first cylinder part and the second cylinder part can move relatively in the axial direction, the other end of the first cylinder part is fixedly connected with the upper pressing plate, and the other end of the second cylinder part is fixedly connected with the lower pressing plate;
the long screw penetrates into the upper through hole, the first barrel part, the second barrel part and the lower through hole, a nut is fixed at one end of the long screw, and an external thread matched with the internal thread is arranged at the other end of the long screw.
2. The stud attaching and detaching tool for flanges according to claim 1, wherein the upper pressure plate is further provided with a sleeve having a nut space for accommodating a nut of the stud, a top wall of the nut space being adapted to be abutted against one end of the bolt.
3. The stud attaching and detaching tool for flanges as defined in claim 2, wherein said sleeve has a mounting projection, said upper pressure plate is provided with a mounting hole or a mounting groove into which said mounting projection is inserted, and said mounting projection is non-rotatably fitted with said mounting hole or said mounting groove.
4. A stud bolt attaching and detaching tool for a flange according to claim 3, wherein the cross sections of the mounting projections and the mounting holes are rectangular, and the outer walls of the mounting projections are in clearance fit with the inner walls of the mounting holes.
5. A stud bolt attaching and detaching tool for a flange according to any one of claims 2 to 4, wherein the side wall of the inner wall of the sleeve has a shape that mates with the side wall of the outer wall of the nut so that the nut is not rotatable relative to the sleeve.
6. The stud attaching and detaching tool for flanges according to claim 2, wherein said sleeve is formed together with said upper platen.
7. A stud bolt attaching and detaching tool for a flange according to any one of claims 1 to 4 or claim 6, wherein said lower through hole has an internal thread, and the end of said long screw protruding from said upper through hole is provided with a nut.
8. A stud bolt attaching and detaching tool for a flange according to any one of claims 1 to 4 or claim 6, wherein the diameter of the first barrel portion is smaller than the diameter of the second barrel portion, and one end of the first barrel portion protrudes into one end of the second barrel portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320938157.3U CN220373176U (en) | 2023-04-24 | 2023-04-24 | Stud assembling and disassembling tool for flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320938157.3U CN220373176U (en) | 2023-04-24 | 2023-04-24 | Stud assembling and disassembling tool for flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220373176U true CN220373176U (en) | 2024-01-23 |
Family
ID=89558883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320938157.3U Active CN220373176U (en) | 2023-04-24 | 2023-04-24 | Stud assembling and disassembling tool for flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220373176U (en) |
-
2023
- 2023-04-24 CN CN202320938157.3U patent/CN220373176U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |