CN209856374U - Mechanical sealing device for vertical spheroidal graphite machine - Google Patents
Mechanical sealing device for vertical spheroidal graphite machine Download PDFInfo
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- CN209856374U CN209856374U CN201920613832.9U CN201920613832U CN209856374U CN 209856374 U CN209856374 U CN 209856374U CN 201920613832 U CN201920613832 U CN 201920613832U CN 209856374 U CN209856374 U CN 209856374U
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- rotating ring
- ring
- rotating
- ring seat
- seat
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Abstract
The utility model discloses a mechanical seal device for vertical nodular machine, including quiet ring subassembly, rotating ring, stop pin, stop collar, rotating ring seat and axle sleeve, quiet ring subassembly is connected with the one end of rotating ring, and the other end of rotating ring is connected with the one end of stop pin, and the other end of stop pin is connected with the one end of rotating ring seat, and the other end and the stop collar of rotating ring seat are connected, and the stop collar is installed on the axle sleeve, and the rotating ring seat is installed on the axle sleeve. A first gap is formed between the bottom of the rotating ring and the shaft sleeve, a second gap is formed between the other end of the rotating ring and the rotating ring seat, and the anti-rotating pin penetrates through the second gap to connect the rotating ring seat and the rotating ring. The device solves the problem that the end face of the sealing end face deforms and leaks due to direct contact, improves the sealing performance and prolongs the service life of the sealing device.
Description
Technical Field
The utility model relates to a mechanical seal device field, concretely relates to mechanical seal device for vertical spheroidal graphite machine.
Background
The primary seal in the original mechanical seal device of the inlet vertical type nodular graphite machine is composed of a static ring component 1A, a moving ring 2A, a seal ring 4A, a limit sleeve 6A and a moving ring seat 7A as shown in figures 1 and 2. The terminal surface of quiet ring subassembly 1A is connected with rotating ring 2A's one end, and quiet ring 2A's the other end is connected with rotating ring seat 7A, and rotating ring seat 7A lower extreme is provided with sealing washer 4A, and rotating ring seat 7A is connected with stop collar 6A. Plays a decisive role in the long-term operation of the seal. The disadvantages of this seal structure are two-fold: firstly, the movable ring 2A is in direct contact with the movable ring seat 7A, no floating property exists at all, the movable ring 2A is connected to the movable ring seat 7A by means of the limiting sleeve 6A and the screw, and once the screw is screwed down, the leakage of the sealed friction pair end face frequently occurs; secondly, because the seal structure of sealing washer 4A is too loaded down with trivial details, lead to the easy leakage that appears in sealed position, influence sealing device's life.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, prolong sealing device's life, the utility model provides a vertical mechanical seal device for nodular machine, sealing performance is good, has prolonged life.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a mechanical seal device for vertical nodular machine, includes quiet ring subassembly, rotating ring, stop pin, stop collar, rotating ring seat and axle sleeve, and quiet ring subassembly is connected with the one end of rotating ring, and the other end of rotating ring is connected with the one end of stop pin, and the other end of stop pin is connected with the one end of rotating ring seat, and the other end and the stop collar of rotating ring seat are connected, and the stop collar is installed on the axle sleeve, and the rotating ring seat is installed on the axle sleeve. A first gap is formed between the bottom of the rotating ring and the shaft sleeve, a second gap is formed between the other end of the rotating ring and the rotating ring seat, and the anti-rotating pin penetrates through the second gap to connect the rotating ring seat and the rotating ring.
Compared with the prior art, the utility model has the advantages of it is following:
the problem of the seal face cause the terminal surface to warp and appear leaking because of the direct contact is solved, the rotating ring can carry out radial and axial two-way floating, radially compensated the displacement that quiet ring subassembly produced, also compensated the displacement that quiet ring subassembly produced in the axial moreover, makes the rotating ring subassembly have better compensatory nature, has solved the problem that the straightness that hangs down of seal face reduces, has improved sealing performance, has prolonged sealing device's life.
More preferably: the rotating ring floats axially by the anti-rotation pin.
By adopting the technical scheme, the axial displacement generated by the static ring assembly is compensated, and the problem of leakage caused by deformation of the movable ring seat in direct contact with the movable ring is solved.
More preferably: the rotating ring floats radially in the first gap.
By adopting the technical scheme, the radial displacement generated by the static ring assembly is compensated, and the problem of leakage caused by friction deformation due to direct contact of the dynamic ring and the shaft sleeve is solved.
More preferably: a sealing ring is arranged between the movable ring seat and the shaft sleeve, and the sealing ring is sleeved between the movable ring seat and the shaft sleeve.
By adopting the technical scheme, the sealing ring is arranged, so that leakage between the movable ring seat and the shaft sleeve is reduced, the sealing performance between the movable ring seat and the shaft sleeve is improved, and the sealing ring is more firmly and reliably mounted.
More preferably: the upper part of the movable ring and the upper part of the movable ring seat are sealed by a sealing ring.
By adopting the technical scheme, the friction generated by direct contact between the upper part of the movable ring and the upper part of the movable ring seat is reduced, and the sealing performance between the upper part of the movable ring and the upper part of the movable ring seat is improved.
More preferably: the rotating ring adopts an integral silicon carbide structure.
By adopting the technical scheme, the whole silicon carbide structure has good mechanical property and air tightness, the displacement generated by the static ring is compensated, the dynamic ring has good compensation property, and the sealing property of the dynamic ring is improved.
More preferably: the stop collar is connected with the axle sleeve dismantlement.
By adopting the technical scheme, the limiting sleeve plays a role in limiting the position of the sealing element, and can normally run after the limiting sleeve is required to be detached before starting the equipment.
Drawings
FIG. 1 is a schematic view of a dynamic and static ring structure in a prior art sealing device;
FIG. 2 is a schematic structural view of a sealing device according to an embodiment;
FIG. 3 is a schematic structural view of a sealing device according to an embodiment;
FIG. 4 is a schematic view of the second stationary ring of the embodiment connected to an inner flange;
in the drawings, 1-stationary ring assembly; 2-a moving ring; 3-anti-rotation pin; 4-sealing ring; 5-a first gap; 8-a second gap; 6-a limiting sleeve; 7-moving ring seat; 9-shaft sleeve; 10-a stationary ring; 11-stationary ring seat; 12-transition ring.
Detailed Description
The present invention will be described in further detail with reference to fig. 2, 3 and 4.
A mechanical sealing device for a vertical type nodular graphite machine is used for mechanical sealing of the vertical type nodular graphite machine.
As shown in fig. 2 and 3, the anti-rotation device comprises a static ring assembly 1, a rotating ring 2, an anti-rotation pin 3, a stop collar 6, a rotating ring seat 7 and a shaft sleeve 9. The quiet ring subassembly 1 is connected with the one end of rotating ring 2, and the other end of rotating ring 2 is connected with the one end of anti-rotating pin 3, and the other end of anti-rotating pin 3 is connected with the one end of rotating ring seat 7, and the other end of rotating ring seat 7 is connected with stop collar 6, and stop collar 6 installs on axle sleeve 9, and stop collar 6 is dismantled with axle sleeve 9 and is connected. The movable ring seat 7 is arranged on the shaft sleeve 9, the sealing ring 4 is arranged between the movable ring seat 7 and the shaft sleeve 9, and the sealing ring 4 is sleeved between the movable ring seat 7 and the shaft sleeve 9.
As shown in fig. 4, the stationary ring assembly 1 is composed of a stationary ring 10, a stationary ring seat 11, and a transition ring 12. A transition ring 12 is arranged in the middle of the stationary ring seat 11, the transition ring 12 is embedded in the stationary ring seat 11, and the transition ring 12 is fixedly connected with two inner walls of the stationary ring seat 11. The end of the stationary ring seat 11 is fixedly connected with one end of the stationary ring 10.
Referring to fig. 4, one end of the rotating ring 2 is connected to the other end of the stationary ring 10, a very small gap is left between one end of the rotating ring 2 and the other end of the stationary ring 10, and the gap is filled with a sealing liquid, so that an extremely thin liquid film is formed between the stationary ring 10 and the rotating ring 2.
A second gap 8 is arranged between the other end of the rotating ring 2 and the rotating ring seat 7, the other end of the rotating ring 2 is movably connected with one end of the anti-rotating pin 3, the other end of the anti-rotating pin 3 is fixedly connected with one end of the rotating ring seat 7, and the anti-rotating pin 3 penetrates through the second gap 8 to connect the rotating ring seat 7 and the rotating ring 2. The rotating ring 2 can axially float through the anti-rotation pin 3, the axial displacement generated by the static ring component 1 is compensated, and the leakage problem caused by the direct contact of the rotating ring seat 7 and the rotating ring 2 is solved.
Be equipped with first clearance 5 between the bottom of rotating ring 2 and the axle sleeve 9, be full of first clearance 5 after sealing liquid gets into sealed chamber, play isolation and lubricated effect to rotating ring 2 and axle sleeve 9 to rotating ring 2 can be radially floated in first clearance 5, has compensated the radial displacement that quiet ring subassembly 1 produced, has avoided rotating ring 2 and axle sleeve 9 direct contact and has aroused the problem that the contact end face warp and lead to appearing leaking simultaneously.
The moving ring 2 is floated in the radial direction and the axial direction, so that the displacement of the static ring component 1 in the axial direction and the radial direction is compensated, and the verticality of the sealing end surface is improved.
The upper part of the moving ring 2 and the upper part of the moving ring seat 7 are sealed through a sealing ring, so that friction generated by direct contact between the upper part of the moving ring and the upper part of the moving ring seat is reduced, and the sealing performance between the upper part of the moving ring and the upper part of the moving ring seat is improved. The movable ring seat 7 is arranged on the shaft sleeve 9, the bottom of the movable ring seat 7 is fixedly connected with the shaft sleeve 9 through a bolt, the bottom of the movable ring seat 7 is sealed with the shaft sleeve 9 through the sealing ring 4, the sealing ring 4 reduces leakage between the movable ring seat 7 and the shaft sleeve 9, sealing performance between the movable ring seat 7 and the shaft sleeve 9 is improved, and the sealing ring 4 is more firmly and reliably arranged. The other end of the movable ring seat 7 is fixedly connected with the limiting sleeve 6 through a bolt, and the limiting sleeve 6 plays a role in limiting the position of the sealing device and controlling the whole set of sealing compression amount. The stop collar 6 is detachably connected with the shaft sleeve 9, and before starting the equipment, the stop collar 6 needs to be taken off, so that the normal operation can be realized.
The installation process comprises the following steps: firstly, a static ring component 1 is installed on an inner flange, lubricating grease is smeared on the outer wall of a shaft sleeve 9, a positioning bolt, a sealing ring 4 and a moving ring 2 are sequentially installed on a moving ring seat 7, the moving ring seat 7 is fixed on the outer diameter of the shaft sleeve 9 through a bolt, finally, a limiting sleeve 6 is installed on the shaft sleeve 9, the position of the moving ring seat 7 is fixed, and finally, the limiting sleeve 6 and the moving ring seat 7 are fixed through a bolt.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.
Claims (7)
1. A mechanical sealing device for a vertical type nodular graphite machine comprises a static ring assembly (1), a rotating ring (2), an anti-rotation pin (3), a limiting sleeve (6), a rotating ring seat (7) and a shaft sleeve (9), wherein the static ring assembly (1) is connected with one end of the rotating ring (2), the other end of the rotating ring (2) is connected with one end of the anti-rotation pin (3), the other end of the anti-rotation pin (3) is connected with one end of the rotating ring seat (7), the other end of the rotating ring seat (7) is connected with the limiting sleeve (6), the limiting sleeve (6) is installed on the shaft sleeve (9), and the rotating ring seat (7) is installed on the shaft sleeve (9); the method is characterized in that: the bottom of rotating ring (2) with be equipped with first clearance (5) between axle sleeve (9), the other end of rotating ring (2) with be equipped with second clearance (8) between rotating ring seat (7), stop pin (3) pass second clearance (8) and are connected rotating ring seat (7) and rotating ring (2).
2. The mechanical sealing device for the vertical spheroidal graphite machine according to claim 1, characterized in that: the rotating ring (2) axially floats through the anti-rotating pin (3).
3. The mechanical sealing device for the vertical spheroidal graphite machine according to claim 1, characterized in that: the rotating ring (2) floats radially in the first gap (5).
4. The mechanical sealing device for the vertical spheroidal graphite machine according to claim 1, characterized in that: a sealing ring (4) is arranged between the movable ring seat (7) and the shaft sleeve (9), and the sealing ring (4) is sleeved between the movable ring seat (7) and the shaft sleeve (9).
5. The mechanical sealing device for the vertical spheroidal graphite machine according to claim 1, characterized in that: the upper part of the movable ring (2) and the upper part of the movable ring seat (7) are sealed through a sealing ring.
6. The mechanical sealing device for the vertical spheroidal graphite machine according to claim 1, characterized in that: the moving ring (2) adopts an integral silicon carbide structure.
7. The mechanical sealing device for the vertical spheroidal graphite machine according to claim 1, characterized in that: the limiting sleeve (6) is detachably connected with the shaft sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613832.9U CN209856374U (en) | 2019-04-29 | 2019-04-29 | Mechanical sealing device for vertical spheroidal graphite machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613832.9U CN209856374U (en) | 2019-04-29 | 2019-04-29 | Mechanical sealing device for vertical spheroidal graphite machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856374U true CN209856374U (en) | 2019-12-27 |
Family
ID=68939853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920613832.9U Active CN209856374U (en) | 2019-04-29 | 2019-04-29 | Mechanical sealing device for vertical spheroidal graphite machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209856374U (en) |
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2019
- 2019-04-29 CN CN201920613832.9U patent/CN209856374U/en active Active
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