CN202811314U - Tandem type mechanical seal device - Google Patents
Tandem type mechanical seal device Download PDFInfo
- Publication number
- CN202811314U CN202811314U CN 201220289521 CN201220289521U CN202811314U CN 202811314 U CN202811314 U CN 202811314U CN 201220289521 CN201220289521 CN 201220289521 CN 201220289521 U CN201220289521 U CN 201220289521U CN 202811314 U CN202811314 U CN 202811314U
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- CN
- China
- Prior art keywords
- ring
- stationary
- rotating ring
- axle sleeve
- rotating
- 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
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Abstract
The utility model discloses a tandem type mechanical seal device which comprises a first rotating ring, a second rotating ring, a first stationary ring, a second stationary ring, a spring box component, a shaft sleeve, a pump end cover, a stationary ring seat, a gland, a transmission ring, a rotation ring, a pump shaft, a spring, a pumping ring and a plurality of O-shaped rings, wherein the O-shaped ring is arranged between one end of the pump shaft and the shaft sleeve; the spring box component is mounted at one end of the shaft sleeve; the O-shaped ring is mounted between the first rotating ring and the shaft sleeve; the other end of the first rotating ring is connected with one end of the first stationary ring; the O-shaped ring is mounted between the first stationary ring and the stationary ring seat; the upper end of the stationary ring seat is connected with the pump end cover; one end of the pumping ring and one end of the second rotating ring are connected through the spring; the O-shaped ring is arranged between the second rotating ring and the shaft sleeve; the other end of the second rotating ring is connected with one end of the second stationary ring; the O-shaped ring is arranged between the second stationary ring and the gland; and the rotation ring, the pumping ring and the second rotating ring are mounted on the shaft sleeve. The mechanical seal device has the advantages of simple structure, low cost and convenience in installation.
Description
Technical field
The utility model relates to a kind of seal arrangement, relates in particular to a kind of serial mechanical seal device.
Background technique
At present, a large amount of oil sealings that adopt directly carry out interference fit and realize motive sealing with running shaft, and its Tongzhou degree to running shaft, size deviation, out of roundness, surface roughness etc. have very strict requirement.The coaxality size of taking out directly affects the distribution of oil sealing lip contact stress, usually requires at 0.3mm, and the diameter of axle is 50-80mm, and the oil sealing linear velocity is in 10-15m/s, yet is difficult under many circumstances accomplish.
The size deviation of axle can affect sealing effect, the contact load of excessive axle meeting layer frame lip end, and too small axle then can make the sealing load on the lip end in contact face inadequate.Contact is crossed conference and is impelled the sealing premature failure, and contact is too small then can to cause leakage.
Thereby the out of roundness of axle makes elastomeric lip produce rapid variation of oil slick thickness according to the irrgular movement of axle possibly causes that sealing pair leaks.
The roughness General provisions of axle is Ra1.6-3.2 μ m, and the surface is too smooth to be unfavorable for forming and the maintenance oil film, the seal ring dry friction, and burn causes leakage easily; The axle surface is too coarse, and the fretting wear aggravation can cause oil sealing early failue equally.
Aspect installing and using, must reach the standard grade at oil seal lip before installing and be coated with a little lubricating grease, owing to sealed lip has a magnitude of interference with respect to axle, must be noted that during installation and prevent such as the reversing, extrude of sealed lip, when axle head is not with circular cone.Fillet and when screw thread is arranged is with regard to more it should be noted that otherwise easily lip is scratched and affect sealing effect.
Existing oil sealing is responsive to the damage on axle surface, and very slight damage all might produce greatly impact to its sealing effect and operating life, even directly brings leakage.
Summary of the invention
The purpose of this utility model provides a kind of serial mechanical seal device with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises the first rotating ring, the second rotating ring, the first stationary ring, the second stationary ring, the spring case assembly, axle sleeve, the pump end cap, stationary seat, gland, transmission ring, turning collar, pump shaft, spring, pumping ring and O shape circle, described O shape circle comprises a plurality of, described axle sleeve is installed on the described pump shaft, described O shape circle is installed between one end of described axle sleeve and described pump shaft, described spring case assembly is installed on an end of described axle sleeve, one end of described spring case assembly is connected by described spring with an end of described the first rotating ring, described O shape circle is installed between described the first rotating ring and the described axle sleeve, the other end of described the first rotating ring is connected with an end of described the first stationary ring, described stationary seat is installed on the upper end of described the first stationary ring, described O shape circle is installed between described the first stationary ring and the described stationary seat, the upper end of described stationary seat is connected with described pump end cap, described pumping ring and described the second rotating ring all are installed on the described axle sleeve, one end of described pumping ring is connected by described spring with an end of described the second rotating ring, be provided with described O shape circle between described the second rotating ring and the described axle sleeve, the other end of described the second rotating ring is connected with an end of described the second stationary ring, the upper end of described the second stationary ring is connected with described gland, be provided with described O shape circle between described the second stationary ring and the described gland, described turning collar is installed on the described axle sleeve, and described transmission ring is installed on the described turning collar.
The beneficial effects of the utility model are:
The utility model is realized mechanical seal by two rotating rings of two stationary rings and O shape circle, and is less on the impact of axle and medium; The utlity model has advantage simple in structure, that cost is low and easy for installation.
Description of drawings
Fig. 1 is serial mechanical seal device sectional view described in the utility model;
1-spring case assembly among the figure, 2-axle sleeve, the 3-the first rotating ring, 4-pump end cap, the 5-the first stationary ring, 6-stationary seat, 7-gland, 8-transmission ring, 9-turning collar, 10-pump shaft, the 11-the second stationary ring, the 12-the second rotating ring, 13-spring, 14-pumping ring, 15-O shape circle.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises the first rotating ring 3, the second rotating ring 12, the first stationary ring 5, the second stationary ring 11, spring case assembly 1, axle sleeve 2, pump end cap 4, stationary seat 6, gland 7, transmission ring 8, turning collar 9, pump shaft 10, spring 13, pumping ring 14 and O shape circle 15, O shape circle 15 comprises a plurality of, axle sleeve 2 is installed on the pump shaft 10, O shape circle 15 is installed between one end of axle sleeve 2 and pump shaft 10, spring case assembly 1 is installed on an end of axle sleeve 2, one end of spring case assembly 1 is connected by spring 13 with an end of the first rotating ring 3, O shape circle 15 is installed between the first rotating ring 3 and the axle sleeve 2, the other end of the first rotating ring 3 is connected with an end of the first stationary ring 5, stationary seat 6 is installed on the upper end of the first stationary ring 5, O shape circle 15 is installed between the first stationary ring 5 and the stationary seat 6, the upper end of stationary seat 6 is connected with pump end cap 4, pumping ring 14 and the second rotating ring 12 all are installed on the axle sleeve 2, one end of pumping ring 14 is connected by spring 13 with an end of the second rotating ring 12, be provided with O shape circle 15 between the second rotating ring 12 and the axle sleeve 2, the other end of the second rotating ring 12 is connected with an end of the second stationary ring 11, the upper end of the second stationary ring 11 is connected with gland 7, be provided with O shape circle 15 between the second stationary ring 11 and the gland 7, turning collar 9 is installed on the axle sleeve 2, and transmission ring 8 is installed on the turning collar 9.
Claims (1)
1. serial mechanical seal device, it is characterized in that: comprise the first rotating ring, the second rotating ring, the first stationary ring, the second stationary ring, the spring case assembly, axle sleeve, the pump end cap, stationary seat, gland, transmission ring, turning collar, pump shaft, spring, pumping ring and O shape circle, described O shape circle comprises a plurality of, described axle sleeve is installed on the described pump shaft, described O shape circle is installed between one end of described axle sleeve and described pump shaft, described spring case assembly is installed on an end of described axle sleeve, one end of described spring case assembly is connected by described spring with an end of described the first rotating ring, described O shape circle is installed between described the first rotating ring and the described axle sleeve, the other end of described the first rotating ring is connected with an end of described the first stationary ring, described stationary seat is installed on the upper end of described the first stationary ring, described O shape circle is installed between described the first stationary ring and the described stationary seat, the upper end of described stationary seat is connected with described pump end cap, described pumping ring and described the second rotating ring all are installed on the described axle sleeve, one end of described pumping ring is connected by described spring with an end of described the second rotating ring, be provided with described O shape circle between described the second rotating ring and the described axle sleeve, the other end of described the second rotating ring is connected with an end of described the second stationary ring, the upper end of described the second stationary ring is connected with described gland, be provided with described O shape circle between described the second stationary ring and the described gland, described turning collar is installed on the described axle sleeve, and described transmission ring is installed on the described turning collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220289521 CN202811314U (en) | 2012-06-20 | 2012-06-20 | Tandem type mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220289521 CN202811314U (en) | 2012-06-20 | 2012-06-20 | Tandem type mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811314U true CN202811314U (en) | 2013-03-20 |
Family
ID=47870197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220289521 Expired - Fee Related CN202811314U (en) | 2012-06-20 | 2012-06-20 | Tandem type mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216466A (en) * | 2013-04-12 | 2013-07-24 | 丹东克隆集团有限责任公司 | Pumping serial mechanical seal device and pumping ring thereof |
-
2012
- 2012-06-20 CN CN 201220289521 patent/CN202811314U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216466A (en) * | 2013-04-12 | 2013-07-24 | 丹东克隆集团有限责任公司 | Pumping serial mechanical seal device and pumping ring thereof |
| CN103216466B (en) * | 2013-04-12 | 2015-07-08 | 丹东克隆集团有限责任公司 | Pumping serial mechanical seal device and pumping ring thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130620 |