CN204153155U - Mechanical seal leak-tight seal assembly - Google Patents
Mechanical seal leak-tight seal assembly Download PDFInfo
- Publication number
- CN204153155U CN204153155U CN201420504916.6U CN201420504916U CN204153155U CN 204153155 U CN204153155 U CN 204153155U CN 201420504916 U CN201420504916 U CN 201420504916U CN 204153155 U CN204153155 U CN 204153155U
- Authority
- CN
- China
- Prior art keywords
- ring
- gland
- axle sleeve
- flow guide
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 81
- 210000004907 gland Anatomy 0.000 claims abstract description 57
- 125000006850 spacer group Chemical group 0.000 claims abstract description 9
- 239000004809 Teflon Substances 0.000 claims description 8
- 229920006362 Teflon® Polymers 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to fluid medium delivery pipe seal arrangement field, is specially a kind of mechanical seal leak-tight seal assembly.A kind of mechanical seal leak-tight seal assembly, comprise rotating shaft (20), rotating ring (6) and stationary ring (7), it is characterized in that: also comprise sealing seat (1), lip sealing ring (2), stripper loop (3), hold-down ring (4), snap ring (5), axle sleeve (8), flow guide sleeve (9), gland (10), spacer ferrule assembly (11) and Compress Spring (12), axle sleeve (8) is fixed in rotating shaft (20), rotating ring (6) is fixed on axle sleeve (8), flow guide sleeve (9) is enclosed within axle sleeve (8), stationary ring (7) is fixed on gland (10), sealing seat (1), lip sealing ring (2), stripper loop (3), hold-down ring (4) and snap ring (5) are all enclosed within axle sleeve (8).The utility model good seal performance, dielectric leakage is few, long service life.
Description
Technical field
The utility model relates to fluid medium delivery pipe seal arrangement field, is specially a kind of mechanical seal leak-tight seal assembly.
Background technique
Existing machinery sealing often adopts outside framework oil seal or labyrinth seal as the means preventing buffer solution or leakage fluid water dumping, but practical effect bad, there are the following problems: when a large amount of press water leaks, labyrinth seal cannot be worked, and water dumping is serious; Outside framework oil seal easily grinds axle sleeve and itself easily damages, and the life-span is not long.
Model utility content
In order to overcome the defect of prior art, providing the shaft sealing device that a kind of good seal performance, dielectric leakage are few, the utility model discloses a kind of mechanical seal leak-tight seal assembly.
The utility model reaches goal of the invention by following technical solution:
A kind of mechanical seal leak-tight seal assembly, comprise rotating shaft, rotating ring and stationary ring, rotating ring and stationary ring are all enclosed within rotating shaft, it is characterized in that: also comprise sealing seat, lip sealing ring, stripper loop, hold-down ring, snap ring, axle sleeve, flow guide sleeve, gland, spacer ferrule assembly and Compress Spring
Axle sleeve is fixed in rotating shaft, and flow guide sleeve is enclosed within axle sleeve rotationally, and stationary ring is enclosed within flow guide sleeve rotationally, and gland is Flange-shaped Parts, and the through hole of gland flange neck is shoulder hole, and the neck flange of gland is enclosed within axle sleeve rotationally, one end of flow guide sleeve is fixed in gland flange neck through hole, moving ring sleeve is also removably fixed on axle sleeve, the exterior edge face of stationary ring and the Step Shaft of gland flange neck through hole are to connection, being lined with between the exterior edge face of stationary seat and gland can the Compress Spring of axial stretching, the interior edge face of stationary ring and rotating ring end face laminating, Spielpassung is formed between the madial wall of gland flange neck and the outer side wall of stationary ring, the madial wall of gland flange neck and the outside of stationary ring are lined with the supporting of O type circle between the walls, axle sleeve and rotating ring synchronous axial system is driven during axis of rotation, gland during axis of rotation, flow guide sleeve and stationary ring do not rotate with axle sleeve,
Sealing seat, lip sealing ring, stripper loop, hold-down ring and snap ring are enclosed within axle sleeve all rotationally, sealing seat is the cartridge type that one end open is closed in bottom surface, sealing seat is enclosed within axle sleeve rotationally by the through hole that bottom surface is offered, and the side of flow guide sleeve is located in the outer end of sealing seat bottom surface;
At least two panels lip sealing ring is lined with between the madial wall of sealing seat and the outer side wall of axle sleeve, stripper loop is lined with between adjacent lip sealing ring, the outer end of outermost lip sealing ring is lined with hold-down ring, lip sealing ring, stripper loop and hold-down ring are fixed on the inner chamber of sealing seat by rolling mode, sealing seat, lip sealing ring, stripper loop and hold-down ring form black box, snap ring is located at the side of sealing seat opening and snap ring is fixed in the neck flange through hole of gland, described black box is fixed in the internal channel of gland flange neck through hole by snap ring, snap ring is in order to determine the axial position of described black box.
Described mechanical seal leak-tight seal assembly, is characterized in that: the angle between the inner of lip sealing ring and axle sleeve bus is at 30 ° ~ 75 °.
Described mechanical seal leak-tight seal assembly, is characterized in that: axle sleeve is held tightly by spacer ferrule assembly and is fixed in rotating shaft; Spacer ferrule assembly is made up of the expanding ring in two outsides and the lock ring of an inner side, and the expanding ring in two outsides is by the lock ring inside bolt presses;
Any one in fixing employing following A ~ C tri-kinds of modes between flow guide sleeve and gland:
A mode: the internal diameter of gland flange neck through hole and the external diameter of flow guide sleeve form interference fit;
B mode: connected by key between the neck flange through hole of gland and flow guide sleeve;
C mode: the through hole of gland flange neck is shoulder hole, and one end of flow guide sleeve is fixed on the step of gland flange neck through hole.
Described mechanical seal leak-tight seal assembly, is characterized in that: lip sealing ring adopts modified Teflon to make.
When the utility model uses, gland is fixed in frame, drives axle sleeve and rotating ring synchronous axial system during axis of rotation, and stationary ring, flow guide sleeve and gland all keep static with frame, fits mutually thus there is sliding friction between stationary ring and rotating ring; When stationary ring and rotating ring are because of friction after loss, owing to being provided with Compress Spring, the axial elastic force that Compress Spring produces makes stationary ring and rotating ring remain to fit tightly.
The lip sealing ring that the utility model is made up of the teflon of filling high-abrasive material more than two panels, stripper loop, hold-down ring, sealing seat and snap ring etc. for the formation of axially spaced-apart form, when sealing operation, lip sealing ring and axle sleeve relative sliding are formed to contact and seal, there is certain angle between lip sealing ring and axle sleeve, the medium that mechanical seal primary sealing area leaks or provide cooling to rinse for mechanical seal primary sealing area back-cooled water mineralization pressure after can compress this lip sealing ring and afford redress; Meanwhile, multi-layer sealed that is made up of lip sealing ring can form labyrinth seal, and the leakage of effective baffle seal medium, can prevent water dumping substantially completely; Make lip sealing ring by the wear-resisting teflon plate of multi-disc and can form self-lubricating layer, effectively control the area of contact with axle sleeve, available protecting axle sleeve simultaneously.
The beneficial effects of the utility model are: good seal performance, and dielectric leakage is few, and structure is simple, easy to use, long service life.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1.
Embodiment
The utility model is further illustrated below by way of specific embodiment.
Embodiment 1
A kind of mechanical seal leak-tight seal assembly, comprise sealing seat 1, lip sealing ring 2, stripper loop 3, hold-down ring 4, snap ring 5, rotating ring 6, stationary ring 7, axle sleeve 8, flow guide sleeve 9, gland 10, spacer ferrule assembly 11, Compress Spring 12 and rotating shaft 20, as shown in the figure, concrete structure is:
Rotating ring 6 and stationary ring 7 are all enclosed within rotating shaft 20, axle sleeve 8 is fixed in rotating shaft 20, flow guide sleeve 9 is enclosed within axle sleeve 8 rotationally, and stationary ring 7 is enclosed within flow guide sleeve 9 rotationally, and gland 10 is Flange-shaped Parts, and the through hole of gland 10 neck flange is shoulder hole, and the neck flange of gland 10 is enclosed within axle sleeve 8 rotationally, one end of flow guide sleeve 9 is fixed in gland 10 neck flange through hole, rotating ring 6 overlaps and uses screw, pin or key are removably fixed on axle sleeve 8, the exterior edge face of stationary ring 7 and the Step Shaft of gland 10 neck flange through hole are to connection, being lined with between the exterior edge face of stationary seat 7 and gland 10 can the Compress Spring 12 of axial stretching, the interior edge face of stationary ring 7 and an end face laminating of rotating ring 6, Spielpassung is formed between the madial wall of gland 10 neck flange and the outer side wall of stationary ring 7, the madial wall of gland 10 neck flange and the outside of stationary ring 7 are lined with the supporting of O type circle between the walls, axle sleeve 8 and rotating ring 6 synchronous axial system is driven when rotating shaft 20 is rotated, gland 10 when rotating shaft 20 is rotated, flow guide sleeve 9 and stationary ring 7 do not rotate with axle sleeve 8,
Sealing seat 1, lip sealing ring 2, stripper loop 3, hold-down ring 4 and snap ring 5 are enclosed within axle sleeve 8 all rotationally, sealing seat 1 is for closing the cartridge type of one end open in bottom surface, sealing seat 1 is enclosed within axle sleeve 8 by the through hole that bottom surface is offered rotationally, and the side of flow guide sleeve 9 is located in the outer end of sealing seat 1 bottom surface;
At least two panels lip sealing ring 2 is lined with between the madial wall of sealing seat 1 and the outer side wall of axle sleeve 8, stripper loop 3 is lined with between adjacent lip sealing ring 2, the outer end of outermost lip sealing ring 2 is lined with hold-down ring 4, lip sealing ring 2, stripper loop 3 and hold-down ring 4 are fixed on the inner chamber of sealing seat 1 by rolling mode, sealing seat 1, lip sealing ring 2, stripper loop 3 and hold-down ring 4 form black box, snap ring 5 is located at the side of sealing seat 1 opening and snap ring 5 is fixed in the neck flange through hole of gland 10, described black box is fixed in the internal channel of gland 10 neck flange through hole by snap ring 5, snap ring 5 is in order to determine the axial position of described black box.
Angle between the inner of lip sealing ring 2 and axle sleeve 8 bus is at 30 ° ~ 75 °, and the present embodiment gets 45 °.
In the present embodiment, axle sleeve 8 is held tightly by spacer ferrule assembly 11 and is fixed in rotating shaft 20; Spacer ferrule assembly 11 is made up of the expanding ring in two outsides and the lock ring of an inner side, and the expanding ring in two outsides is by the lock ring inside bolt presses;
Fixing between flow guide sleeve 9 and gland 10 can adopt in following A ~ C tri-kinds of modes any one:
A mode: the internal diameter of gland 10 neck flange through hole and the external diameter of flow guide sleeve 9 form interference fit;
B mode: connected by key between the neck flange through hole of gland 10 and flow guide sleeve 9;
C mode: the through hole of gland 10 neck flange is shoulder hole, one end of flow guide sleeve 9 is fixed on the step of gland 10 neck flange through hole.
In the present embodiment, lip sealing ring 2 adopts modified Teflon to make.
When the present embodiment uses, gland 10 is fixed in frame, drives axle sleeve 8 and rotating ring 6 synchronous axial system when rotating shaft 20 is rotated, and stationary ring 7, flow guide sleeve 9 and gland 10 all keep static with frame, fits mutually thus there is sliding friction between stationary ring 7 and rotating ring 6; When stationary ring 7 and rotating ring 6 are because of friction after loss, the axial elastic force that Compress Spring 12 produces makes stationary ring 7 and rotating ring 6 remain to fit tightly.
The lip sealing ring 2 that the present embodiment is made up of the teflon of filling high-abrasive material more than two panels, stripper loop 3, hold-down ring 4, sealing seat 1 and snap ring 5 etc. for the formation of axially spaced-apart form, when the present embodiment uses, namely when sealing runs, lip sealing ring 2 is formed to contact with axle sleeve 8 relative sliding and seals, there is certain angle between lip sealing ring 2 and axle sleeve 8, the medium that mechanical seal primary sealing area leaks or provide cooling to rinse for mechanical seal primary sealing area back-cooled water mineralization pressure after can compress this lip sealing ring 2 and afford redress; Meanwhile, the multi-disc diaphragm seal be made up of lip sealing ring 2 can form labyrinth seal, and the leakage of effective baffle seal medium, can prevent water dumping substantially completely; Make lip sealing ring 2 by the wear-resisting teflon plate of multi-disc and can form self-lubricating layer, effectively control the area of contact with axle sleeve 8, available protecting axle sleeve 8 simultaneously.
Claims (5)
1. a mechanical seal leak-tight seal assembly, comprise rotating shaft (20), rotating ring (6) and stationary ring (7), rotating ring (6) and stationary ring (7) are all enclosed within rotating shaft (20), it is characterized in that: also comprise sealing seat (1), lip sealing ring (2), stripper loop (3), hold-down ring (4), snap ring (5), axle sleeve (8), flow guide sleeve (9), gland (10), spacer ferrule assembly (11) and Compress Spring (12)
Axle sleeve (8) is fixed in rotating shaft (20), flow guide sleeve (9) is enclosed within axle sleeve (8) rotationally, stationary ring (7) is enclosed within flow guide sleeve (9) rotationally, gland (10) is Flange-shaped Parts, the through hole of gland (10) neck flange is shoulder hole, and the neck flange of gland (10) is enclosed within axle sleeve (8) rotationally, one end of flow guide sleeve (9) is fixed in gland (10) neck flange through hole, rotating ring (6) cover is also removably fixed on axle sleeve (8), the exterior edge face of stationary ring (7) and the Step Shaft of gland (10) neck flange through hole are to connection, being lined with between the exterior edge face of stationary seat (7) and gland (10) can the Compress Spring (12) of axial stretching, the interior edge face of stationary ring (7) and an end face laminating of rotating ring (6), Spielpassung is formed between the madial wall of gland (10) neck flange and the outer side wall of stationary ring (7), the madial wall of gland (10) neck flange and the outside of stationary ring (7) are lined with the supporting of O type circle between the walls, axle sleeve (8) and rotating ring (6) synchronous axial system is driven when rotating shaft (20) is rotated, gland (10) when rotating shaft (20) is rotated, flow guide sleeve (9) and stationary ring (7) do not rotate with axle sleeve (8),
Sealing seat (1), lip sealing ring (2), stripper loop (3), hold-down ring (4) and snap ring (5) are enclosed within axle sleeve (8) all rotationally, sealing seat (1) is for closing the cartridge type of one end open in bottom surface, sealing seat (1) is enclosed within axle sleeve (8) by the through hole that bottom surface is offered rotationally, and the side of flow guide sleeve (9) is located in the outer end of sealing seat (1) bottom surface;
At least two panels lip sealing ring (2) is lined with between the madial wall of sealing seat (1) and the outer side wall of axle sleeve (8), stripper loop (3) is lined with between adjacent lip sealing ring (2), the outer end of outermost lip sealing ring (2) is lined with hold-down ring (4), lip sealing ring (2), stripper loop (3) and hold-down ring (4) are fixed on the inner chamber of sealing seat (1) by rolling mode, sealing seat (1), lip sealing ring (2), stripper loop (3) and hold-down ring (4) form black box, snap ring (5) is located at the side of sealing seat (1) opening and snap ring (5) is fixed in the neck flange through hole of gland (10), described black box is fixed in the internal channel of gland (10) neck flange through hole by snap ring (5).
2. mechanical seal leak-tight seal assembly as claimed in claim 1, is characterized in that: the angle between the inner of lip sealing ring (2) and axle sleeve (8) bus is at 30 ° ~ 75 °.
3. mechanical seal leak-tight seal assembly as claimed in claim 1 or 2, is characterized in that: axle sleeve (8) is held tightly by spacer ferrule assembly (11) and is fixed in rotating shaft (20);
Any one in fixing employing following A ~ C tri-kinds of modes between flow guide sleeve (9) and gland (10):
A mode: the internal diameter of gland (10) neck flange through hole and the external diameter of flow guide sleeve (9) form interference fit;
B mode: connected by key between the neck flange through hole of gland (10) and flow guide sleeve (9);
C mode: the through hole of gland (10) neck flange is shoulder hole, one end of flow guide sleeve (9) is fixed on the step of gland (10) neck flange through hole.
4. mechanical seal leak-tight seal assembly as claimed in claim 1 or 2, is characterized in that: lip sealing ring (2) adopts modified Teflon to make.
5. mechanical seal leak-tight seal assembly as claimed in claim 3, is characterized in that: lip sealing ring (2) adopts modified Teflon to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420504916.6U CN204153155U (en) | 2014-09-03 | 2014-09-03 | Mechanical seal leak-tight seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420504916.6U CN204153155U (en) | 2014-09-03 | 2014-09-03 | Mechanical seal leak-tight seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153155U true CN204153155U (en) | 2015-02-11 |
Family
ID=52511271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420504916.6U Expired - Fee Related CN204153155U (en) | 2014-09-03 | 2014-09-03 | Mechanical seal leak-tight seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153155U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195277A (en) * | 2016-08-30 | 2016-12-07 | 宁波天工机械密封有限公司 | Clinker elevator mechanical seal |
| CN109027246A (en) * | 2018-10-31 | 2018-12-18 | 东莞市华汇精密机械有限公司 | A kind of mechanically-sealing apparatus of high viscosity ball mill |
| CN110397741A (en) * | 2019-08-28 | 2019-11-01 | 东营海森密封技术有限责任公司 | A kind of shaft end mechanically-sealing apparatus |
| CN110864114A (en) * | 2019-12-02 | 2020-03-06 | 桂林实创真空数控设备有限公司 | Rotatory dynamic seal device of local high vacuum of range upon range of formula |
-
2014
- 2014-09-03 CN CN201420504916.6U patent/CN204153155U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195277A (en) * | 2016-08-30 | 2016-12-07 | 宁波天工机械密封有限公司 | Clinker elevator mechanical seal |
| CN109027246A (en) * | 2018-10-31 | 2018-12-18 | 东莞市华汇精密机械有限公司 | A kind of mechanically-sealing apparatus of high viscosity ball mill |
| CN109027246B (en) * | 2018-10-31 | 2024-01-09 | 广东华汇智能装备股份有限公司 | Mechanical sealing device of high-viscosity ball mill |
| CN110397741A (en) * | 2019-08-28 | 2019-11-01 | 东营海森密封技术有限责任公司 | A kind of shaft end mechanically-sealing apparatus |
| CN110397741B (en) * | 2019-08-28 | 2024-04-26 | 东营海森密封技术有限责任公司 | Shaft end mechanical sealing device |
| CN110864114A (en) * | 2019-12-02 | 2020-03-06 | 桂林实创真空数控设备有限公司 | Rotatory dynamic seal device of local high vacuum of range upon range of formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |