CN202756291U - Mechanical seal of automatic controlling and self-priming pump - Google Patents
Mechanical seal of automatic controlling and self-priming pump Download PDFInfo
- Publication number
- CN202756291U CN202756291U CN 201220381385 CN201220381385U CN202756291U CN 202756291 U CN202756291 U CN 202756291U CN 201220381385 CN201220381385 CN 201220381385 CN 201220381385 U CN201220381385 U CN 201220381385U CN 202756291 U CN202756291 U CN 202756291U
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- Prior art keywords
- ring
- seal
- static
- dynamic
- self
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Abstract
A mechanical seal of an automatic controlling and self-priming pump comprises a dynamic ring, a dynamic seal ring and a static ring. A liquid inlet is arranged on the upper end of the outer shell, a liquid outlet is arranged on the lower end of the outer shell, the dynamic ring is arranged on the left end of the outer shell, a drive pin is arranged on the outer shell, the dynamic seal ring is arranged in the inner cavity of the front end of the dynamic ring, the static ring is arranged in the inner cavity of the rear end of the dynamic ring, the outer ring of the dynamic ring is positioned by the drive pin and the outer shell, a static O-shaped ring is arranged on the outer ring of the right end of the static ring, a spring is arranged in the inner cavity of the static ring on the lower portion of the static ring, a maze seal ring is arranged on the other end of the spring, a maze seal O-shaped ring is arranged in a concave groove on the outer ring of the maze seal ring. The mechanical seal of the automatic controlling and self-priming pump adopts static seal to effectively solve the problem that the rotating of the mechanical seal and the static sealing surface can not keep a good parallel state in the process of operation. The end surfaces of the static ring and the dynamic ring, the seal of the static ring and a gland and the seal of the static ring and a shaft sleeve form three sealing structure so that the path through which the liquid leaks out of the seal cavity is blocked and the reliable seal is achieved.
Description
Technical field; The utility model relates to the mechanical seal of self-controlling self-priming pump.
Background technique:
Mechanical seal is one of important component part of GJB series of high efficiency energy-saving self-controlling self-priming pump.Exist pressure reduction between the outer atmosphere of pump inner fluid and pump, fluid must be established seal arrangement along the gap between axle and the pump housing to external leakage for this reason.Pressure in the pump is during greater than barometric pressure, and shaft seal prevents liquid to external leakage, and the pump internal pressure is during less than barometric pressure, and shaft seal prevents that air is to the pump internal leakage.Mechanical sealing element not only plays a part sealing, also plays a part buffering vibration and impact.Mechanical seal comprises the assembly that two-part are the most basic, is installed in rotary component and the static part that is installed on the gland on the axle.Generally, the spring assembly of mechanical seal is rotary component.Because equipment can more or less produce certain accumulated error in the process of making and installing, thereby make between the rotation of present mechanical seal and the stationary seal face and in running, can not keep good parastate, because axle is in rotation at a high speed, the spring assembly of mechanical seal has to ceaselessly to compensate to guarantee along with the rotation of axle the parastate of sealing surface, so the working life of spring assembly is very low.In addition " rotary-type " sealing need to be carried out special surface treatment to dynamic O shape circle operation area on the axle sleeve, such as spraying, chromium plating etc., could protect axle sleeve by dynamically O shape circle abrasion.
Summary of the invention:
The purpose of this utility model is exactly the mechanical seal that a kind of self-controlling self-priming pump will be provided, and it can overcome
Existing machinery seals existing problem.The purpose of this utility model is to realize like this, the mechanical seal of self-controlling self-priming pump, comprise rotating ring, seal ring of moving ring, stationary ring, it is characterized in that: the shell upper end is provided with liquid entering hole, the lower end is provided with liquid outlet, left end is provided with rotating ring, and be provided with driving pin thereon, be provided with seal ring of moving ring in the rotating ring front end inner chamber, be provided with stationary ring in the inner chamber of rear end, its outer ring is by driving pin and shell location, stationary ring right-hand member outer ring is provided with stationary ring O type circle, be provided with spring in its below stationary ring inner chamber, the other end of spring is provided with labyrinth seal, is provided with labyrinth seal O type circle in the groove on the labyrinth seal outer ring.The utility model mechanical seal inner body adopts many spring structures fully and the medium isolation, effectively prevents the stuck of spring, thereby has greatly prolonged the working life of spring; The static sealing is adopted in mechanical seal, has effectively solved the rotation of mechanical seal and stationary seal face can not keep good parastate in running problem, makes disposable this parallelism error that compensated of spring assembly of sealing; Removed from fully and need to carry out special surface-treated requirement to dynamic O shape circle operation area on the axle sleeve; In addition, the abrasion of dynamic auxiliary seal O shape circle also dropped to minimum level.Rotating ring is fitted on the end face of stationary ring its end face by the pressure of liquid in the Seal cage and the pressure of spring, forms small axial clearance and reaches the purpose of sealing.Stationary ring rotating ring two seal ring end faces, the sealing of stationary ring and gland, the sealing of rotating ring and axle sleeve consists of three seal structures, shutoff in the Seal cage liquid realize reliably sealing to the approach of external leakage.Wherein, various seal rings also play a part buffering vibration and impact except playing sealing.
Description of drawings: Fig. 1 is the utility model structural representation;
1. liquid outlet, 2. gland, 3. fastening screw trip bolt, 4. labyrinth seal, 5. labyrinth seal O type circle, 6. liquid entering hole, 7. stationary ring O type circle, 8. driving pin, 9. spring, 10. rotating ring, 11. seal ring of moving ring, 12. driving pins, 13. stationary rings, 14. axle sleeve O type circle, 15. axle sleeves.
Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing;
The mechanical seal of self-controlling self-priming pump, comprise rotating ring 10, seal ring of moving ring 11, stationary ring 13, it is characterized in that: the shell upper end is provided with liquid entering hole 6, the lower end is provided with liquid outlet 1, left end is provided with rotating ring 10, and be provided with driving pin 12 thereon, be provided with seal ring of moving ring 11 in the rotating ring front end inner chamber, be provided with stationary ring 13 in the inner chamber of rear end, its outer ring is by driving pin 8 and shell location, and stationary ring 13 right-hand member outer rings are provided with stationary ring O type circle 7, is provided with spring 9 in its below stationary ring inner chamber, the other end of spring 9 is provided with labyrinth seal 4, is provided with labyrinth seal O type circle 5 in the groove on labyrinth seal 4 outer rings.During implementation, the utility model mechanical seal shell adopts stainless steel, has good dustproof anticorrosive performance.The mechanical seal inner body adopts many spring structures fully and the medium isolation, effectively prevents the stuck of spring, thereby has greatly prolonged the working life of spring; And have good shock-absorbing capacity, and axial dimension reduces, and can reduce the volume of mechanical seal, thereby reduce the effective length of Pump Axle, is reduced in the radial force that produces in the rotary course.The static sealing is adopted in mechanical seal, has effectively solved the rotation of mechanical seal and stationary seal face can not keep good parastate in running problem, makes disposable this parallelism error that compensated of spring assembly of sealing; Removed from fully and need to carry out special surface-treated requirement to dynamic O shape circle operation area on the axle sleeve; In addition, the abrasion of dynamic auxiliary seal O shape circle also dropped to minimum level.The mechanical seal collection is self cooling, and two kinds of functions of water-cooled are integrated.When fed sheet of a media is clear water, can not install liquid entering hole additional, cool off to mechanical seal.Dynamically O shape circle also is static part, thereby has reduced it in motion axial and radially.And because dynamically O shape circle is installed and is operated on the hard material, the problems such as abrasion that dynamic O shape circle produces when therefore not needing to worry as rotary component.
Claims (1)
1. the mechanical seal of self-controlling self-priming pump, comprise rotating ring (10), seal ring of moving ring (11), stationary ring (13), it is characterized in that: the shell upper end is provided with liquid entering hole (6), the lower end is provided with liquid outlet (1), left end is provided with rotating ring (10), and be provided with driving pin (12) thereon, be provided with seal ring of moving ring (11) in rotating ring (10) the front end inner chamber, be provided with stationary ring (13) in the inner chamber of rear end, its outer ring is by driving pin (8) and shell location, stationary ring (13) right-hand member outer ring is provided with stationary ring O type circle (7), be provided with spring (9) in its below stationary ring inner chamber, the other end of spring (9) is provided with labyrinth seal (4), is provided with labyrinth seal O type circle (5) in the groove on labyrinth seal (4) outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381385 CN202756291U (en) | 2012-08-03 | 2012-08-03 | Mechanical seal of automatic controlling and self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381385 CN202756291U (en) | 2012-08-03 | 2012-08-03 | Mechanical seal of automatic controlling and self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756291U true CN202756291U (en) | 2013-02-27 |
Family
ID=47735476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381385 Expired - Lifetime CN202756291U (en) | 2012-08-03 | 2012-08-03 | Mechanical seal of automatic controlling and self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224283A (en) * | 2016-08-25 | 2016-12-14 | 浙江南元泵业有限公司 | Vertical mechanical seal for pump |
-
2012
- 2012-08-03 CN CN 201220381385 patent/CN202756291U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224283A (en) * | 2016-08-25 | 2016-12-14 | 浙江南元泵业有限公司 | Vertical mechanical seal for pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |