CN212287436U - Device for disassembling and assembling mechanical seal - Google Patents
Device for disassembling and assembling mechanical seal Download PDFInfo
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- CN212287436U CN212287436U CN202020311224.5U CN202020311224U CN212287436U CN 212287436 U CN212287436 U CN 212287436U CN 202020311224 U CN202020311224 U CN 202020311224U CN 212287436 U CN212287436 U CN 212287436U
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Abstract
The utility model belongs to the technical field of nuclear power station nuclear level fluid mechanical seal, concretely relates to a device for mechanical seal dismantles equipment and dismantlement equipment method thereof, include: the device comprises a handle, a top, a large disc, a bolt, an L-shaped annular drag hook, a small disc, a press-fitting sleeve, a nut and a screw rod; the utility model has simple structure and convenient operation; and the mechanical seal cannot be damaged; the problem of difficulty in mechanical seal assembly can be effectively solved.
Description
Technical Field
The utility model belongs to the technical field of nuclear power station nuclear level fluid mechanical seal, concretely relates to a device for mechanical seal dismantles equipment.
Background
The mechanical seal is an axial end face sealing device which can achieve sealing by means of pre-tightening of an elastic element on a movable ring end face sealing pair and a static ring end face sealing pair and pressing of medium pressure and elastic element pressure, is one of very important and very precise parts of nuclear-grade fluid machinery of a nuclear power station, and needs to be replaced for many times periodically during service of equipment so as to ensure safe and reliable operation of the equipment. The mechanical seal movable ring is arranged on the shaft sleeve, and the thread pump is respectively matched with the shaft sleeve and the movable ring. Two O-shaped sealing rings are designed on the inner side of the threaded pump to serve as auxiliary seals, and the O-shaped sealing rings are sealed through certain compression deformation generated by the movable ring and the radial outer circular surface of the shaft sleeve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing a be used for mechanical seal to dismantle equipment device to solve the technical problem of dismouting in-process because of frictional force dismouting difficulty.
The technical scheme of the utility model:
an apparatus for mechanical seal disassembly and assembly, comprising: the device comprises a handle 1, a jackscrew 2, a large disc 3, a bolt 4, an L-shaped annular drag hook 5, a small disc 9, a press-fitting sleeve 10, a nut 11 and a screw 12; the handle 1 is arranged at one end of the jackscrew 2; the center of the large disc 3 is in threaded connection with the other end of the jackscrew 2, a circular concave table is arranged on the center of the surface of one side of the small disc 9, and one end of the jackscrew 2 in threaded connection with the large disc 3 is placed in the circular concave table of the small disc 9; a plurality of threaded through holes are uniformly distributed on the outer edge of the circumference of the large disc 3; when the mechanical seal is assembled: the bolt 4 passes through the plurality of threaded through holes to fix the L-shaped annular drag hook 5 on the circumference of the large disc 3; when the mechanical seal is disassembled: the screw 12 penetrates through the plurality of threaded through holes and is matched with the nut 11 to fix the L-shaped annular drag hook 5 on the circumference of the large disc 3; when the mechanical seal is disassembled and assembled, the shaft sleeve 6 and the movable ring 7 are concentrically arranged on the surface of one side of the small circular disc 9, which is not provided with the concave table, the outer side of the movable ring 7 is also provided with a thread pump 8, and the upper end surface of the thread pump 8 is attached to the inner end surface of the L-shaped annular drag hook 5; when the mechanical seal is disassembled, a press-fitting sleeve 10 is further arranged on the surface of one side, not provided with the concave table, of the small circular disc 9, and the press-fitting sleeve 10 is sleeved on the outer side of the movable ring 7 in a sleeved mode.
The handle 1 is integrally of a long rod type structure, and bosses are arranged at the left end and the right end of the handle 1, so that the handle is convenient to prevent falling off.
The whole jackscrew 2 is of a cylindrical structure, and a threaded through hole is formed in the circle center of the large disc 3 and is used for being in threaded connection with the other end of the jackscrew 2.
A plurality of threaded through holes are uniformly distributed on the circumferential outer edge of the L-shaped annular drag hook 5, and the number of the threaded through holes uniformly distributed on the circumferential outer edge of the L-shaped annular drag hook 5 is 4; the diameter of the small disc 9 is matched with the outer diameter of the movable ring 7.
The diameter of the large disc 3 is matched with the outer diameter of the L-shaped annular drag hook 5.
The number of the thread through holes uniformly distributed on the outer edge of the circumference of the large disc 3 is 4, and the thread through holes uniformly distributed on the outer edge of the circumference of the large disc 3 and the thread through holes uniformly distributed on the outer edge of the circumference of the L-shaped annular drag hook 5 are concentrically arranged.
The utility model has the advantages that:
the mechanical seal disassembling and assembling device designed by the utility model has simple structure and convenient operation; and the mechanical seal cannot be damaged; the problem of difficulty in mechanical seal assembly can be effectively solved.
Drawings
Fig. 1 is a schematic view of a mechanical seal disassembling and assembling device according to the present invention for disassembling a mechanical seal;
fig. 2 is a device diagram of a mechanical seal disassembling and assembling device for disassembling a mechanical seal according to the present invention;
fig. 3 is a schematic view of a mechanical seal disassembling and assembling device according to the present invention for assembling a mechanical seal;
fig. 4 is a device diagram of the mechanical seal disassembling and assembling device of the present invention for assembling the mechanical seal.
In the figure: 1. the device comprises a handle, 2. jackscrews, 3. a large disc, 4. bolts, 5. an L-shaped annular drag hook, 6. a shaft sleeve, 7. a movable ring, 8. a threaded pump, 9. a small disc, 10. a press-fitting sleeve, 11. nuts and 12. screws.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
an apparatus for mechanical seal disassembly and assembly, comprising: the device comprises a handle 1, a jackscrew 2, a large disc 3, a bolt 4, an L-shaped annular drag hook 5, a small disc 9, a press-fitting sleeve 10, a nut 11 and a screw 12; the handle 1 is arranged at one end of the jackscrew 2; the center of the large disc 3 is in threaded connection with the other end of the jackscrew 2, a circular concave table is arranged on the center of the surface of one side of the small disc 9, and one end of the jackscrew 2 in threaded connection with the large disc 3 is placed in the circular concave table of the small disc 9; a plurality of threaded through holes are uniformly distributed on the outer edge of the circumference of the large disc 3; when the mechanical seal is assembled: the bolt 4 passes through the plurality of threaded through holes to fix the L-shaped annular drag hook 5 on the circumference of the large disc 3; when the mechanical seal is disassembled: the screw 12 penetrates through the plurality of threaded through holes and is matched with the nut 11 to fix the L-shaped annular drag hook 5 on the circumference of the large disc 3; when the mechanical seal is disassembled and assembled, the shaft sleeve 6 and the movable ring 7 are concentrically arranged on the surface of one side of the small circular disc 9, which is not provided with the concave table, the outer side of the movable ring 7 is also provided with a thread pump 8, and the upper end surface of the thread pump 8 is attached to the inner end surface of the L-shaped annular drag hook 5; when the mechanical seal is disassembled, a press-fitting sleeve 10 is further arranged on the surface of one side, not provided with the concave table, of the small circular disc 9, and the press-fitting sleeve 10 is sleeved on the outer side of the movable ring 7 in a sleeved mode.
The handle 1 is integrally of a long rod type structure, and bosses are arranged at the left end and the right end of the handle 1, so that the handle is convenient to prevent falling off.
The whole jackscrew 2 is of a cylindrical structure, and a threaded through hole is formed in the circle center of the large disc 3 and is used for being in threaded connection with the other end of the jackscrew 2.
A plurality of threaded through holes are uniformly distributed on the circumferential outer edge of the L-shaped annular drag hook 5, and the number of the threaded through holes uniformly distributed on the circumferential outer edge of the L-shaped annular drag hook 5 is 4; the diameter of the small disc 9 is matched with the outer diameter of the movable ring 7.
The diameter of the large disc 3 is matched with the outer diameter of the L-shaped annular drag hook 5.
The number of the thread through holes uniformly distributed on the outer edge of the circumference of the large disc 3 is 4, and the thread through holes uniformly distributed on the outer edge of the circumference of the large disc 3 and the thread through holes uniformly distributed on the outer edge of the circumference of the L-shaped annular drag hook 5 are concentrically arranged.
A method of disassembling a device for mechanical seal disassembly assembly as described above, comprising the steps of:
the method comprises the following steps: and (3) mechanical seal disassembly: concentrically installing the L-shaped annular drag hook 5 on the threaded pump 8, and attaching the inner end surface of the L-shaped annular drag hook 5 to the upper end surface of the threaded pump 8;
step two: the small disc 9 is concentrically arranged on the shaft sleeve 6, so that the upper end surface of the small disc 9 is attached to the lower end surface of the shaft sleeve 6; concentrically installing the large disc 3 on the L-shaped annular drag hook 5, attaching the upper end surface of the large disc 3 to the lower end surface of the L-shaped annular drag hook 5, and concentrically installing 4 through holes of the large disc 3 and 4 threaded holes of the L-shaped annular drag hook 5; 4 bolts respectively penetrate through 4 through holes of the large disc 3 and are respectively screwed into 4 threaded holes of the L-shaped annular drag hook 5 to be screwed tightly;
step three: the handle 1 is arranged in a through hole at the head part of the jackscrew 2; screwing the jackscrew 2 into a threaded hole in the middle of the large disc 3; the thread end part of the jackscrew 2 is attached to the end surface of the circular concave platform in the middle of the small circular disk 9; at the moment, the jackscrew 2 is slowly rotated, so that the threaded pump 8 is separated from the movable ring 7 and the shaft sleeve 6, and the mechanical seal is disassembled;
a method of assembling a device for mechanical seal disassembly assembly as described above, comprising the steps of:
the method comprises the following steps: concentrically installing the L-shaped annular drag hook 5 on the threaded pump 8, and attaching the inner end surface of the L-shaped annular drag hook 5 to the lower end surface of the threaded pump 8; the press-fitting sleeve 10 is concentrically installed on the movable ring 7, so that the lower end face of the press-fitting sleeve 10 is attached to the upper end face of the movable ring 7;
step two: concentrically installing the small disc 9 on the press-fitting sleeve 10 to ensure that the lower end surface of the small disc 9 is attached to the upper end surface of the press-fitting sleeve 10; the large disc 3 is concentrically arranged on the small disc 9, and 4 through holes of the large disc 3 are concentric with 4 threaded holes of the L-shaped annular drag hook 5; 4 screw rods 12 are respectively penetrated into 4 through holes of the large disc 3 and are respectively screwed into 4 threaded holes of the L-shaped annular drag hook 5 to be screwed tightly; screwing the nut 11 into the screw 12 to enable the lower end face of the nut 11 to be attached to the upper end face of the large disc 3;
step three: the handle 1 is arranged in a through hole at the head part of the jackscrew 2; screwing the jackscrew 2 into a threaded hole in the middle of the large disc 3; the thread end part of the jackscrew 2 is attached to the end surface of the circular concave platform in the middle of the small circular disk 9; at the moment, the jackscrew 2 is slowly rotated, so that the matching of the screw pump 8, the movable ring 7 and the shaft sleeve 6 is realized, and the assembly of mechanical seal is realized.
Example (b):
as shown in fig. 1 to 4, the utility model provides a mechanical seal disassembling and assembling device includes handle 1, jackscrew 2, big disc 3, bolt 4, L annular drag hook 5, small circle dish 9, pressure equipment cover 10, nut 11, screw rod 12. Bosses are processed at the two ends of the handle 1, so that the falling off is prevented conveniently; the head of the jackscrew 2 is provided with a through hole, so that the handle 1 can be conveniently installed; 1 threaded hole is processed in the middle of the large disc 3, so that the large disc is convenient to be in threaded fit with the jackscrew 2; 4 through holes are uniformly formed in the outer side of the large disc 3, so that bolts 4 can conveniently penetrate through the through holes; 4 threaded holes are uniformly formed in the outer side of the L-shaped annular drag hook 5, so that the L-shaped annular drag hook can be conveniently in threaded connection with the bolts 4 or the screw rods 12; 1 circular concave platform is processed in the middle of the small disc 9, so that the circular concave platform can be conveniently matched with the thread end part of the jackscrew 2; the press-fit sleeve 10 is made of non-metal materials, so that the movable ring 7 is prevented from being damaged.
The present invention has been described in detail with reference to the accompanying drawings and examples, but the present invention is not limited to the above examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.
Claims (6)
1. An apparatus for mechanical seal disassembly and assembly, comprising: the device comprises a handle (1), a jackscrew (2), a large circular disc (3), a bolt (4), an L-shaped annular drag hook (5), a small circular disc (9), a press-fitting sleeve (10), a nut (11) and a screw (12); the handle (1) is arranged at one end of the jackscrew (2); the center of the large disc (3) is in threaded connection with the other end of the jackscrew (2), a circular concave table is arranged on the center of the surface of one side of the small disc (9), and one end of the jackscrew (2) in threaded connection with the large disc (3) is placed in the circular concave table of the small disc (9); a plurality of threaded through holes are uniformly distributed on the outer edge of the circumference of the large disc (3); when the mechanical seal is assembled: the bolt (4) passes through the plurality of threaded through holes to fix the L-shaped annular drag hook (5) on the circumference of the large disc (3); when the mechanical seal is disassembled: the screw rod (12) penetrates through the plurality of threaded through holes and is matched with the nut (11) to fix the L-shaped annular drag hook (5) on the circumference of the large disc (3); when the mechanical seal is disassembled and assembled, the surface of one side of the small circular disc (9) without the concave table is concentrically provided with the shaft sleeve (6) and the movable ring (7), the outer side of the movable ring (7) is also provided with the threaded pump (8), and the upper end surface of the threaded pump (8) is attached to the inner end surface of the L-shaped annular drag hook (5); when the mechanical seal is disassembled, a press-fitting sleeve (10) is further arranged on the surface of one side, not provided with the concave table, of the small circular disc (9), and the press-fitting sleeve (10) is sleeved on the outer side of the movable ring (7).
2. A device for mechanical seal disassembly and assembly as claimed in claim 1, wherein: the handle (1) is integrally of a long rod type structure, and bosses are arranged at the left end and the right end of the handle (1) respectively, so that the handle is convenient to prevent falling off.
3. A device for mechanical seal disassembly and assembly as claimed in claim 2, wherein: the whole jackscrew (2) is of a cylindrical structure, and a threaded through hole is formed in the circle center of the large disc (3) and is used for being in threaded connection with the other end of the jackscrew (2).
4. A device for mechanical seal disassembly and assembly as claimed in claim 3, wherein: a plurality of threaded through holes are uniformly distributed on the circumferential outer edge of the L-shaped annular drag hook (5), and the number of the threaded through holes uniformly distributed on the circumferential outer edge of the L-shaped annular drag hook (5) is 4; the diameter of the small disc (9) is matched with the outer diameter of the movable ring (7).
5. The device for mechanical seal disassembly and assembly of claim 4, wherein: the diameter of the large disc (3) is matched with the outer diameter of the L-shaped annular drag hook (5).
6. An apparatus for mechanical seal disassembly and assembly as defined in claim 5, wherein: the circumference of big disc (3) is outer along the screw through-hole quantity of last equipartition be 4, the circumference of big disc (3) is outer along the screw through-hole of last equipartition and the circumference of L type annular drag hook (5) is outer along the concentric setting of the screw through-hole of last equipartition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020311224.5U CN212287436U (en) | 2020-03-13 | 2020-03-13 | Device for disassembling and assembling mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020311224.5U CN212287436U (en) | 2020-03-13 | 2020-03-13 | Device for disassembling and assembling mechanical seal |
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| Publication Number | Publication Date |
|---|---|
| CN212287436U true CN212287436U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020311224.5U Active CN212287436U (en) | 2020-03-13 | 2020-03-13 | Device for disassembling and assembling mechanical seal |
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| CN (1) | CN212287436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267031A (en) * | 2020-03-13 | 2020-06-12 | 江苏核电有限公司 | Device for disassembling and assembling mechanical seal and disassembling and assembling method thereof |
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2020
- 2020-03-13 CN CN202020311224.5U patent/CN212287436U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267031A (en) * | 2020-03-13 | 2020-06-12 | 江苏核电有限公司 | Device for disassembling and assembling mechanical seal and disassembling and assembling method thereof |
| CN111267031B (en) * | 2020-03-13 | 2024-08-09 | 江苏核电有限公司 | Device for disassembling and assembling mechanical seal and disassembling and assembling method thereof |
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