CN204647310U - A kind of double mechanical rotary sealing mechanism - Google Patents
A kind of double mechanical rotary sealing mechanism Download PDFInfo
- Publication number
- CN204647310U CN204647310U CN201520321841.2U CN201520321841U CN204647310U CN 204647310 U CN204647310 U CN 204647310U CN 201520321841 U CN201520321841 U CN 201520321841U CN 204647310 U CN204647310 U CN 204647310U
- Authority
- CN
- China
- Prior art keywords
- die cavity
- ring
- rotating ring
- axle
- stationary ring
- 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
A kind of double mechanical rotary sealing mechanism, is characterized in that: comprise the sealing die cavity that a correspondence offers two ports; One rotates axle head through in two ports, and on this axle head, be provided with the axle sleeve with axle synchronous axial system; The outer side wall being in the axle sleeve in die cavity is closely installed with a rotating ring, and in the axial direction, the both sides of rotating ring are respectively equipped with the port that can seal die cavity, again can the stationary ring of close contact rotating ring; Along the circumference of stationary ring, the madial wall of die cavity offers several blind holes, in each blind hole, be equipped with the spring can pushing stationary ring.The utility model is mainly used in the rotary seal of axle head, not only have that structure is simple, low cost and other advantages, and the beneficial effect that other sealed members auxiliary (as the O-ring seals between end cap and pedestal, outside framework oil seal or other packing seal etc.) extend its working life can also be obtained.
Description
Technical field
The utility model relates to mechanical seal field, particularly a kind of sealing mechanism rotating axle head.
Background technique
At present, for rotating the double mechanical rotary sealing mechanism on axle head, generally comprise two rotating rings be fixed on axle sleeve, two rotating ring both sides are in opposite directions respectively equipped with the stationary ring with its close contact, be provided with the throw-out collar that two are pushed respective stationary ring respectively between two stationary rings, two throw-out collars are provided with the spring in compressive state respectively between its corresponding spring seat; Wherein two rotating rings are separately fixed in two seal grooves of axle sleeve.But but there is following defect in above-mentioned sealing mechanism:
1. sealed member is numerous, seal structure complex;
2. the processing dimension of each sealed member is comparatively large, and shared seal space is also comparatively large, and therefore not only the processing cost of sealed member is high, but also causes the increase of equipment cost, eventually reduces product competitive ability commercially;
If 3. need the position sealed only to adopt outside framework oil seal or other packing seal to rotating on axle head, then only can maintain 2-3 month the working life of sealing parts, so change the raising that sealed member not only can affect manufacturing efficiency frequently, the expenditure of entreprise cost also can be increased.
Therefore, provide a kind of novel mechanical rotary sealing mechanism, become numerous enterprises urgently in the technical problem solved.
Model utility content
The purpose of this utility model is to solve the problems of the technologies described above, and then provides the double mechanical rotary sealing mechanism that a kind of structure is simple, cost is low.
The technological scheme that the utility model technical solution problem adopts is:
A kind of double mechanical rotary sealing mechanism, offers the sealing die cavity of two ports comprising a correspondence; One rotates axle head through in two ports, and on this axle head, be provided with the axle sleeve with axle synchronous axial system; The outer side wall being in the axle sleeve in die cavity is closely installed with a rotating ring, and in the axial direction, the both sides of rotating ring are respectively equipped with the port that can seal die cavity, again can the stationary ring of close contact rotating ring; Along the circumference of stationary ring, the madial wall of die cavity offers several blind holes, in each blind hole, be equipped with the spring can pushing stationary ring.
By implementing technique scheme, on sealed member, first eliminating a rotating ring and two throw-out collars, decrease the quantity of sealed member, simplify the structure of sealing mechanism; Secondly, without the need to offering the seal groove settling rotating ring again on axle sleeve, reducing the processing cost of axle sleeve, simplifying the project organization of axle sleeve; Again, on the basis of saving above-mentioned sealed member, directly pushed on stationary ring by spring, thus realize the seal action of stationary ring, so not only decrease the seal space that sealed member takies, and then reduce the processing charges of equipment, and the processing dimension of sealed member can also be shortened, reduce further cost payout; Meanwhile, because the processing dimension of each sealed member reduces, make sealing mechanism become structure simple, compact, thus for sealing mechanism can bear higher pressure, higher rotating speed is laid a good foundation.Finally, because sealing mechanism can share the pressure rotating the axle head overwhelming majority, therefore, the utility model also has the beneficial effect that other sealed members auxiliary (as the O-ring seals between die cavity, outside framework oil seal or other packing seal etc.) extend its working life.
In order to make rotating ring too with axle synchronous axial system, as the preferred means of fixation of one, fixed by pin between rotating ring and axle sleeve in the technical program.
As a kind of preferred structure of stationary ring, the T-shaped tubular of stationary ring in the technical program; Wherein cylindrical portion is sealed in the port of die cavity, and mesa-shaped portion is for coordinating the madial wall extrusion spring of die cavity, and the Single port place flushed with mesa-shaped portion is provided with the concave station of accommodating part rotating ring.
Accompanying drawing explanation
Fig. 1 is axial sectional view of the present utility model;
Fig. 2 is the axial sectional view of stationary ring.
In figure: 1. die cavity, 2. rotation axle head, 3. spring, 11. ports, 12. blind holes, 21. axle sleeves, 22. rotating rings, 23. pins, 24. stationary rings, 241. cylindrical portion, 242. mesa-shaped portions, 243. concave stations.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, a kind of double mechanical rotary sealing mechanism, it comprises the die cavity 1 (surrounded by end cap and pedestal and form) of a sealing, the two side that this die cavity 1 is relative offers two corresponding port ones 1, one rotates axle head 2 through in above-mentioned two port ones 1, and on this rotation axle head 2, be installed with an axle sleeve 21 synchronously rotated with axle.And on the axle sleeve 21 being in die cavity 1 inside, be provided with a rotating ring 22, together with being closely solidly set on by pin 23 between this rotating ring 22 with axle sleeve 21, thus rotating ring 22 is synchronously rotated too with axle.Secondly, the both sides of rotating ring 22 are also respectively equipped with the port one 1 that can seal die cavity 1 in the axial direction, again can the stationary ring 24 of close contact rotating ring 22, and along the circumference of stationary ring 24, the madial wall of die cavity 1 offers several blind holes 12, and in each blind hole 12, is equipped with the spring 3 can pushing stationary ring 24.
As shown in Figure 2, as above-mentioned stationary ring 24 1 kinds of preferred structures, the T-shaped tubular of its global shape structure.This stationary ring 24 shell-like on rotation axle head 2, and from the interior port one 1 to being both sealed in die cavity 1 outward of die cavity 1, can realize close contact with rotating ring 22 again.Wherein, the cylindrical portion 241 of T-shaped tubular stationary ring 24 is sealed in port one 1 place of die cavity 1, and mesa-shaped portion 242 is for coordinating the madial wall extrusion spring 3 of die cavity 1, and at the Single port place flushed with mesa-shaped portion 242, also offer the concave station 243 of the annular of an energy accommodating part rotating ring 22, thus realize the close contact between stationary ring 24 and rotating ring 22.
The utility model in working order time, rotate axle head 2 and drive axle sleeve 21 to rotate, and then driven rotary ring 22 rotates, and stationary ring 24 transfixion pushed by spring 3, thus realizes the rotary seal effect between stationary ring 24 and rotating ring 22.
Claims (3)
1. a double mechanical rotary sealing mechanism, is characterized in that: comprise the sealing die cavity that a correspondence offers two ports; One rotates axle head through in two ports, and on this axle head, be provided with the axle sleeve with axle synchronous axial system; The outer side wall being in the axle sleeve in die cavity is closely installed with a rotating ring, and in the axial direction, the both sides of rotating ring are respectively equipped with the port that can seal die cavity, again can the stationary ring of close contact rotating ring; Along the circumference of stationary ring, the madial wall of die cavity offers several blind holes, in each blind hole, be equipped with the spring can pushing stationary ring.
2. double mechanical rotary sealing mechanism as claimed in claim 1, be is characterized in that: fixed by pin between rotating ring and axle sleeve.
3. double mechanical rotary sealing mechanism as claimed in claim 1, is characterized in that: the T-shaped tubular of stationary ring; Wherein cylindrical portion is sealed in the port of die cavity, and mesa-shaped portion is for coordinating the madial wall extrusion spring of die cavity, and the Single port place flushed with mesa-shaped portion is provided with the concave station of accommodating part rotating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321841.2U CN204647310U (en) | 2015-05-18 | 2015-05-18 | A kind of double mechanical rotary sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321841.2U CN204647310U (en) | 2015-05-18 | 2015-05-18 | A kind of double mechanical rotary sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647310U true CN204647310U (en) | 2015-09-16 |
Family
ID=54100064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520321841.2U Expired - Fee Related CN204647310U (en) | 2015-05-18 | 2015-05-18 | A kind of double mechanical rotary sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638125A (en) * | 2022-10-25 | 2023-01-24 | 丹东盛欣石化设备制造有限公司 | Sealing device for replacing centrifugal pump orifice ring |
-
2015
- 2015-05-18 CN CN201520321841.2U patent/CN204647310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638125A (en) * | 2022-10-25 | 2023-01-24 | 丹东盛欣石化设备制造有限公司 | Sealing device for replacing centrifugal pump orifice ring |
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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: 20150916 Termination date: 20200518 |