CN205278381U - Rotation type multi -spring seal structure - Google Patents
Rotation type multi -spring seal structure Download PDFInfo
- Publication number
- CN205278381U CN205278381U CN201520929117.8U CN201520929117U CN205278381U CN 205278381 U CN205278381 U CN 205278381U CN 201520929117 U CN201520929117 U CN 201520929117U CN 205278381 U CN205278381 U CN 205278381U
- Authority
- CN
- China
- Prior art keywords
- ring
- quiet
- transmission shaft
- mount pad
- dynamic
- 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
Abstract
The utility model discloses a rotation type multi -spring seal structure, including rotating ring part and quiet ring part, the rotating ring part includes mount pad and rotating ring, be equipped with first arch on the mount pad, be equipped with the second arch on the rotating ring, the rotating ring is equipped with the recess towards the transmission shaft side, be equipped with the rotating ring sealing washer in the recess, quiet ring part includes the quiet ring sealing washer of quiet ring sum, quiet ring sealing washer sets up between quiet ring and organism gland, the circumference equipartition has two at least bleeding pressure springs between mount pad and the rotating ring, beneficial effect in this scheme is: structure through adopting two at least pressure spring circumference equipartitions replaces the structure of traditional single spring axle arrangement, makes rotating ring and quiet ring working face atress even on the one hand, on the other hand since pressure spring circumference arrange, consequently do not receive the influence of the transmission shaft diameter of axle, the condition that centrifugal force made the pressure spring warp can not appear when high -speed yet.
Description
Technical field
The utility model relates to mechanical seal field, is specially a kind of rotary how spring sealed structure.
Background technology
Mechanical seal is a kind of gland seal device rotating machinery, the electromechanical equipments such as such as motor, whizzer, reactor and compressor, owing to transmission shaft is applied in inside and outside equipment, a peripheral clearance is there is between axle and equipment, medium in equipment passes through this gap to external leakage, if pressure is lower than normal atmosphere in equipment, then air is to equipment internal leakage, and one therefore must be had to stop the gland seal device leaked.
Traditional gland seal device is single spring type mechanical sealing structure, shim mechanism only has a spring, spring is sheathed on transmission shaft, in this kind of structure, to act on the pressure on trim uneven for spring, when the transmission shaft diameter of axle is big more outstanding, simultaneously when transmission shaft high speed rotating, spring rotates with transmission shaft, by because of bigger centrifugal force, the phenomenon that spring is out of shape occurs, therefore traditional single spring type mechanical sealing structure is relatively big at the transmission shaft diameter of axle and the use of the occasion of transmission shaft high speed running is subject to bigger restriction.
Practical novel content
The utility model is intended to provide a kind of rotary how spring sealed structure, and to solve, the transmission shaft diameter of axle is relatively big and shaft end seal problem when rotating speed of transmission shaft is too high.
Rotary how spring sealed structure in this scheme, comprise movable ring part, quiet ring component, transmission shaft and body gland, movable ring part comprises mount pad and dynamic ring, mount pad and transmission shaft are fixed by tightening screw, dynamic annular space is placed on transmission shaft, dynamic ring can along transmission shaft axial motion, it is protruding that mount pad is provided with first, it is protruding that dynamic ring is provided with the 2nd, dynamic anchor ring is provided with groove to transmission shaft-side, seal ring of moving ring it is provided with in groove, seal ring of moving ring inner circle is sheathed on transmission shaft, seal ring of moving ring and transmission shaft contact surface there is pressure, quiet ring component comprises quiet ring and quiet ring sealing-ring, quiet ring sealing-ring is arranged between quiet ring and body gland, between mount pad and dynamic ring, circumference is evenly equipped with at least two stage clips, stage clip one end is installed on the first projection and above and offsets with mount pad, the stage clip the other end is installed on the 2nd projection and above and offsets with compensation part, stage clip can produce and compression direction opposite effect power under compression.
The principle of work of the rotary how spring sealed structure in this scheme is: when rotating mechanical inner full fluid medium or rotate machinery internal pressure lower than normal atmosphere external fluid medium to when rotating machinery internal leakage, now will there be three leakage points, major leak point is between dynamic ring and quiet ring, 2nd leakage point is for moving between ring and transmission shaft, 3rd leakage point is between quiet ring and body gland, during work, when there is leakage-gap between dynamic ring and quiet ring, under the effect of stage clip elastic force, stage clip promotes dynamic ring to overcome the friction resistance between seal ring of moving ring and transmission shaft and moves to quiet ring direction, until dynamic ring end face and quiet ring end face tightly touch, thus realize the sealing at the first leakage point place, and owing to stage clip is that at least two circumferences are uniform, therefore ring and the pressure uniform of quiet ring effect end face is made, and not by the impact of the transmission shaft diameter of axle, 2nd leakage point is sealed by seal ring of moving ring, 3rd leakage point is sealed by non-compensation sealing circle.
The useful effect of the rotary how spring sealed structure in this scheme is: the structure replacing the single spring of tradition axial arranged by the structure adopting at least two stage clips circumferential uniform, make ring and quiet ring plane of action uniform force on the one hand, on the other hand due to stage clip circumferentially, therefore not by the impact of the transmission shaft diameter of axle, during high speed, also there will not be the situation that centrifugal force makes stage clip be out of shape.
Further, in order to make the uniform force of whole structure reasonable, between mount pad and dynamic ring, the uniform spring of circumference is the six roots of sensation.
Further, in order to make to remain relative static conditions between quiet ring and body gland, between quiet ring and body gland, the steady brace preventing quiet ring from rotating also it is provided with.
Further, seal ring of moving ring and quiet ring sealing-ring are O type rubber seal, and O type rubber seal is extensively for static seal and reciprocating movement sealing, and cost is lower and dependable performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference numeral in Figure of description comprises: transmission shaft 1, mount pad 2, tightening screw 3, first projection 4, stage clip 5, the 2nd projection 6, seal ring of moving ring 7, dynamic ring 8, quiet ring 9, steady brace 10, quiet ring sealing-ring 11, body gland 12.
Embodiment is substantially as shown in Figure 1: rotary how spring sealed structure, comprise movable ring part, quiet ring component, transmission shaft 1 and body gland 12, movable ring part comprises mount pad 2, tightening screw 3, first projection 4, stage clip 5, the 2nd projection 6, seal ring of moving ring 7 and dynamic ring 8, and quiet ring component comprises quiet ring 9, steady brace 10 and quiet ring sealing-ring 11.
In movable ring part, mount pad 2 is sheathed on transmission shaft 1, and mount pad 2 radial direction has four set screw hole, and mount pad 2 is undertaken installing by four tightening screws 3 and transmission shaft 1 to be fixed, and mount pad 2 is also provided with the first projection 4 for stage clip 5 is fixedly connected with.
In movable ring part, dynamic ring 8 has, towards transmission shaft 1 side, the groove that cross section is rectangle, seal ring of moving ring 7 it is provided with in groove, seal ring of moving ring 7 is sheathed on transmission shaft 1 and is stuck in the groove of dynamic ring 8, dynamic ring 8 does not directly contact with transmission shaft 1, but it is supported on axle by seal ring of moving ring 7, dynamic ring 8 can along transmission shaft 1 axial motion, seal ring of moving ring 7 is also for sealing the 2nd leakage point between dynamic ring 8 and transmission shaft 1, the 2nd projection 6 for stage clip 5 connects it is provided with towards mount pad 2 side at dynamic ring 8, stage clip 5 two ends are fixed by first protruding 4 and the 2nd protruding 6 jointly, stage clip 5 circumference between the first projection 4 and the 2nd projection 6 is evenly equipped with six, the length of six stage clips 5 is equal, size is identical, stage clip 5 is positioned at the first protruding 4 ends and mount pad 2 offsets, it is positioned at the 2nd protruding 6 ends and dynamic ring 8 offsets, stage clip 5 is positioned at, at mount pad 2 and 8, dynamic ring, the state compressed, owing to mount pad 2 is fixedly connected with transmission shaft 1, dynamic ring 8 can along transmission shaft 1 axial motion, therefore when leakage-gap occurring between dynamic ring 8 and quiet ring 9, under the reactive force of stage clip 5, dynamic ring 8 axial motion, until dynamic end face between ring 8 and quiet ring 9 is tightly fitted, complete the sealing being in major leak point between dynamic ring 8 and quiet ring 9.
Quiet ring component does not contact between quiet ring 9 inner circle and transmission shaft 1 cylindrical, quiet ring 9 is hollow ring that cross section is L-type, quiet ring sealing-ring 11 is installed between quiet ring 9 and body gland 12, for the 3rd leakage point sealing completed between quiet ring 9 and body gland 12, simultaneously in order to prevent relative movement between quiet ring 9 and body gland 12, between quiet ring 9 and body gland 12, circumference is evenly equipped with four steady braces 10.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, it is also possible to make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability that the utility model is implemented. The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification sheets etc. record the content that may be used for explaining claim.
Claims (4)
1. a rotary how spring sealed structure, comprise movable ring part, quiet ring component, transmission shaft and body gland, described movable ring part comprises mount pad and dynamic ring, described mount pad and described transmission shaft are fixed by tightening screw, described dynamic annular space is placed on described transmission shaft, described dynamic ring can along described transmission shaft axial motion, it is protruding that described mount pad is provided with first, it is protruding that described dynamic ring is provided with the 2nd, described dynamic anchor ring is provided with groove to described transmission shaft-side, it is provided with seal ring of moving ring in described groove, described seal ring of moving ring is sheathed on described transmission shaft, described seal ring of moving ring and described transmission shaft contact surface there is pressure, described quiet ring component comprises quiet ring and quiet ring sealing-ring, described quiet ring sealing-ring is arranged between described quiet ring and described body gland, it is characterized in that: between described mount pad and described dynamic ring, circumference is evenly equipped with at least two stage clips, described stage clip one end is installed on described first projection and above and offsets with described mount pad, the described stage clip the other end is installed on described 2nd projection and above and offsets with described dynamic ring, described stage clip can produce and compression direction opposite effect power under compression.
2. rotary how spring sealed structure according to claim 1, it is characterised in that: the circumferential uniform spring between described mount pad and described dynamic ring is the six roots of sensation.
3. rotary how spring sealed structure according to claim 1, it is characterised in that: it is provided with the steady brace preventing described quiet ring from rotating between described quiet ring and described body gland.
4. rotary how spring sealed structure according to claim 1, it is characterised in that: described seal ring of moving ring and described quiet ring sealing-ring are O type rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929117.8U CN205278381U (en) | 2015-11-20 | 2015-11-20 | Rotation type multi -spring seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929117.8U CN205278381U (en) | 2015-11-20 | 2015-11-20 | Rotation type multi -spring seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278381U true CN205278381U (en) | 2016-06-01 |
Family
ID=56062959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520929117.8U Expired - Fee Related CN205278381U (en) | 2015-11-20 | 2015-11-20 | Rotation type multi -spring seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071805A (en) * | 2017-12-13 | 2018-05-25 | 马鞍山市荣亿密封材料有限责任公司 | A kind of high speed shaft seal structure |
| CN112178198A (en) * | 2020-11-02 | 2021-01-05 | 天长市金祝机械密封件有限公司 | Spring mechanical seal compensating ring assembly |
-
2015
- 2015-11-20 CN CN201520929117.8U patent/CN205278381U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071805A (en) * | 2017-12-13 | 2018-05-25 | 马鞍山市荣亿密封材料有限责任公司 | A kind of high speed shaft seal structure |
| CN108071805B (en) * | 2017-12-13 | 2020-01-14 | 马鞍山市荣亿密封材料有限责任公司 | High-speed shaft sealing structure |
| CN112178198A (en) * | 2020-11-02 | 2021-01-05 | 天长市金祝机械密封件有限公司 | Spring mechanical seal compensating ring assembly |
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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 |
Granted publication date: 20160601 Termination date: 20171120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |