CN204201085U - A kind of volute spring mechanical seal device - Google Patents
A kind of volute spring mechanical seal device Download PDFInfo
- Publication number
- CN204201085U CN204201085U CN201420644022.7U CN201420644022U CN204201085U CN 204201085 U CN204201085 U CN 204201085U CN 201420644022 U CN201420644022 U CN 201420644022U CN 204201085 U CN204201085 U CN 204201085U
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- ring
- spring
- rotating ring
- volute spring
- mechanical seal
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Abstract
A kind of volute spring mechanical seal device, stationary ring is equipped with stationary ring O shape circle, the ring seal of stationary ring and radial opening is fitted and connected, rotating ring O shape circle is housed between throw-out collar and rotating ring, at the groove of rotating ring built with volute spring, the head end of volute spring is connected with throw-out collar, and tail end is equipped with back-up ring, is provided with Cock screw in back-up ring.The utility model is cone screw list spring transmitting torque sealing configuration, and adopt the design of single end face, unbalanced type, rotating ring radial opening designs, and can be overall silicon carbide structure, also can adopt mosaic structure.Spring self transmitting torque, decreases driving mechanism.The regulating power of single spring is strong, compared with many spring mechanical sealing devices and bellow seal, larger axle string quantity and impure, that dielectric viscosity is larger operating mode can be adapted to, the axial installation dimension of mechanical seal is shorter, there is larger adaptability, have that structure is simple, easy for installation, usability is excellent, can be used for clean waterpump, sewage pump, submersible pump, chemical pump etc.
Description
Technical field
The utility model relates to a kind of mechanical seal device, particularly relates to a kind of volute spring mechanical seal device.
Background technique
Current power plant and petrochemical industry, have in chemical industry for high viscosity, impure pump sealing, this type of seals because viscosity is high, media particle is large, the situation of bellows type mechanical seal and the application of little spring machine envelope can not meet the demand of numerous clients, and some users due to be pump comparatively early, pump shaft string quantity is larger, more increase the application difficulty of bellows and little spring machine envelope, so generally adopt now traditional big spring mechanical seal device of similar GB 104, the length of this type of mechanical seal device is larger, strict for requirements of installation space, be difficult to the demand meeting this type of operating modes all.
Summary of the invention
For the defect of conventional springs mechanical seal device, the utility model provides the axial installation dimension of a kind of mechanical seal little, simple and practical, can adapt to larger pump shaft string quantity, more economical volute spring mechanical seal device.
Solving the problems of the technologies described above taked concrete technical measures is:
A kind of volute spring mechanical seal device, it is characterized in that: stationary ring O shape circle 8 is housed on stationary ring 2, stationary ring 2 seals with the rotating ring 1 of radial opening and is fitted and connected, rotating ring O shape is housed between throw-out collar 3 and rotating ring 1 and encloses 7, at the groove of rotating ring 1 built with volute spring 4, the head end of volute spring 4 is connected with throw-out collar 3, and the tail end of volute spring 4 is equipped with back-up ring 5, is provided with Cock screw 6 in back-up ring 5.
the beneficial effects of the utility model: the utility model adopts the sealing configuration form of cone screw list spring transmitting torque, adopts single end face (two end faces of a rotating ring and a stationary ring fit together and constitute the sealing mechanism of an abrasive end face) and unbalanced type design (mechanical seal that loading coefficient is greater than 1).Rotating ring radial opening designs, and can be overall silicon carbide structure, also can adopt mosaic structure.Spring self transmitting torque, decreases the driving mechanism of mechanical seal.Because the regulating power of single spring is strong, so the larger operating mode of axle string quantity can be adapted to.Can be used for clean waterpump, sewage pump, submersible pump, chemical pump etc.This device, compared with many spring mechanical sealing devices and bellow seal, can adapt to larger axle string quantity, can adapt to impure, that dielectric viscosity is larger operating mode.Compared with GB 104 mechanical seal device, spring self transmitting torque saves driving mechanism, and the axial installation dimension of mechanical seal is shorter, has larger adaptability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram that in Fig. 1, rotating ring adopts insert structure;
Fig. 4 is using state figure of the present utility model;
Fig. 5 is the left view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, structure of the present utility model is elaborated.
A kind of volute spring mechanical seal device, as shown in Figures 1 to 5, stationary ring 2 is equipped with stationary ring O shape circle 8, stationary ring 2 seals with the rotating ring 1 of radial opening and is fitted and connected, rotating ring O shape is housed between throw-out collar 3 and rotating ring 1 and encloses 7, at the groove of rotating ring 1 built with volute spring 4, the head end of volute spring 4 is connected with throw-out collar 3, the tail end of volute spring 4 is equipped with back-up ring 5, is provided with Cock screw 6 in back-up ring 5.Stationary ring 2 can adopt overall silicon carbide structure, during installation, stationary ring 2 and O shape is enclosed 8 and is installed on the gland 10 of the pump matched with this device, realizes sealing with stationary ring 2 and the O shape interference fit of enclosing between 8 and the gland 10 be connected with pump by O shape circle 8.Rotating ring 1 can adopt overall silicon carbide as shown in Figure 1 or whole hard alloy material, also can adopt damascene graphite structure or damascene silicon carbide structure as shown in Figure 3.Rotating ring 1 radial opening designs, and the overall length of mechanical seal device can be made shorter, and adaptability is stronger.During installation, rotating ring 17 is installed on the running shaft 9 of the pump matched with this device by rotating ring O shape circle, by O shape circle 7 and rotating ring 1 and O shape enclose 7 and the interference fit of running shaft 9 that matches with this device realize sealing effect.The material of throw-out collar 3 can according to different operating mode select 2Cr13,304, the materials such as 316.Volute spring 4 adopts 304,316, the material such as Hastelloy C alloys, back-up ring 5 can adopt 2Cr13,304, the materials such as 316.This device, by the working depth of adjustment spring, reaches the end face spring pressure needed for operating mode, rotating ring 1 end face and stationary ring 2 end face is fitted, and realizes the effect of sealing.The transmitting torque mode of this kind of structure is that the afterbody internal diameter of volute spring 4 is less than and is mated the diameter of axle, is mated the interference fit transmitting torque of the diameter of axle, realizes transmission by the afterbody of volute spring 4.This device saves the driving mechanism of traditional big spring mechanical seal device (as GB 104 mechanical seal device), and the volute spring seal arrangement length realized needed for sealing needed for spring force is far smaller than traditional required length needed for spring force of helical spring realization sealing.Thus make seal arrangement shorter on length of installation, can accommodation wider, add the application area of this mechanical seal device.And the structure of mechanical seal device is shorter and smaller, its manufacturing process is simpler, and Master Cost and processing charges greatly reduce, and greatly reduces the cost of mechanical seal device, better can meet the demand in market.
Claims (1)
1. a volute spring mechanical seal device, it is characterized in that: stationary ring O shape circle (8) is housed on stationary ring (2), stationary ring (2) seals with the rotating ring (1) of radial opening and is fitted and connected, rotating ring O shape is housed between throw-out collar (3) and rotating ring (1) enclose (7), at the groove of rotating ring (1) built with volute spring (4), the head end of volute spring (4) is connected with throw-out collar (3), and the tail end of volute spring (4) is equipped with back-up ring (5), is provided with Cock screw (6) in back-up ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644022.7U CN204201085U (en) | 2014-11-03 | 2014-11-03 | A kind of volute spring mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644022.7U CN204201085U (en) | 2014-11-03 | 2014-11-03 | A kind of volute spring mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201085U true CN204201085U (en) | 2015-03-11 |
Family
ID=52659049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420644022.7U Active CN204201085U (en) | 2014-11-03 | 2014-11-03 | A kind of volute spring mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518486A (en) * | 2018-03-21 | 2018-09-11 | 大连理工大学 | It is a kind of to cross axis rotary seal structure |
| CN115013535A (en) * | 2022-07-15 | 2022-09-06 | 江苏拓普智能科技有限公司 | Mechanical sealing device for environmental protection equipment |
-
2014
- 2014-11-03 CN CN201420644022.7U patent/CN204201085U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518486A (en) * | 2018-03-21 | 2018-09-11 | 大连理工大学 | It is a kind of to cross axis rotary seal structure |
| CN115013535A (en) * | 2022-07-15 | 2022-09-06 | 江苏拓普智能科技有限公司 | Mechanical sealing device for environmental protection equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |