CN200943699Y - Sealing device between rotary axis and shell - Google Patents
Sealing device between rotary axis and shell Download PDFInfo
- Publication number
- CN200943699Y CN200943699Y CN 200620027088 CN200620027088U CN200943699Y CN 200943699 Y CN200943699 Y CN 200943699Y CN 200620027088 CN200620027088 CN 200620027088 CN 200620027088 U CN200620027088 U CN 200620027088U CN 200943699 Y CN200943699 Y CN 200943699Y
- Authority
- CN
- China
- Prior art keywords
- rotatingshaft
- housing
- sealing
- plate
- sealing plate
- 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 sealing device between a rotary shaft and a housing, comprising a cylinder casing fixed in the housing, end cap of the cylinder casing and a rotary shaft, wherein the rotary shaft has a sealing plate which covers the joint gap between the rotary shaft and the housing and which, coupled with the corresponding housing part, forms a sealing pair; the cylinder casing has an energy storage helical spring which sleeves the rotary shaft and which affects the sealing plate so that the sealing plate may be connected firm to the corresponding housing part. The sealing plate, the energy storage helical spring and the corresponding housing of the utility model compose a mechanical sealing pair for the joint gap between the rotary shaft and the housing, which may effectively prevent oil leakage from the joint gap and avoid the leakage caused by vertical movements of the rotary shaft. The sealing device has advantages of reliable performance and freedom of maintenance etc., and may be widely used for sealing of valve rod or other rotary shafts. The utility model has prominent advantages of simple structure, favorable sealing performance and freedom of maintenance.
Description
Technical field
The utility model belongs to sealing configuration, particularly relates to the seal arrangement between rotatingshaft and the housing.
Background technique
Carry, in the equipment of the flowing material of control liquid state and gaseous state, the device with rotatingshaft is a lot, for example the rotatingshaft of the mechanical control structure of the valve rod of valve, connected system inside etc.Usually the supporting part of rotatingshaft is provided in a side of the jacket casing and the end cap that is threadedly connected to jacket casing on the housing.Because have joint gap between rotatingshaft and the housing, so all be provided with the seal arrangement that acts on the contact slit in rotatingshaft or the jacket casing, modal sealing configuration has round section joint ring, packing etc.
Sealing configuration ubiquity between above-mentioned rotatingshaft and the housing is because of extruding or temperature distortion or the easy disadvantage that lost efficacy of wearing and tearing, and evaporating, emitting, dripping or leaking of liquid or gas happens occasionally, and therefore needs the periodic replacement maintenance.
Summary of the invention
The utility model be existing carry in order to solve, technical problem that the seal arrangement in the control flowing material equipment between rotatingshaft and the housing lost efficacy easily, and seal arrangement between a kind of rotatingshaft and the housing is proposed.
The utility model is taked following technological scheme: this seal arrangement is made up of apparatus casing, jacket casing and the end cap and the rotatingshaft that are threadedly connected to jacket casing, its rotatingshaft is fixed with and covers joint gap between rotatingshaft and the apparatus casing and constitute the sealing plate of sealing pair with pairing housing, is provided with in the jacket casing to be set in rotatingshaft and to act on sealing plate to make it the energy storage helical spring of fluid-tight engagement in institute's corresponding housing.
The utility model can also be taked following technical measures:
Described sealing plate is positioned at the inboard of institute's corresponding device housing, and constitute the conical surface seal pair with pairing housing, its upper end of energy storage helical spring that is set in rotatingshaft in the jacket casing engages with the spring positioning plate of rotatingshaft setting, the lower end is provided with and is set in backing plate rotatingshaft, that have ball recess and ball thereof, and ball engages with the plane rolling of pairing apparatus casing.
Described sealing plate is positioned at the outside of institute's corresponding device housing, and constitute the conical surface seal pair with pairing housing, its upper end of energy storage helical spring that is set in rotatingshaft in the jacket casing is provided with and is set in backing plate rotatingshaft, that have ball recess and ball thereof, ball engages with the spring positioning plate that is fixed in jacket casing, energy storage helical spring lower end is provided with and is set in pressing plate rotatingshaft, that have annular boss, and annular boss engages with the sealing plate upper-end surface.
Described rotatingshaft is made of the upper and lower semiaxis of mutual socket, rotational support is in the last semiaxis of jacket casing end cap central bore, its underpart is provided with the square shaped core chamber of second shaft end of plug-in mounting, its bead is provided with the positive stop lug boss that engages with the end cap bottom end, and the last semiaxis in the end cap outside is provided with the backing pin that engages with the end cap upper-end surface.
Described apparatus casing is the mounting plate that is fixed in the jacket casing bottom, and this mounting plate and sealing plate constitute the conical surface seal pair and be tightly connected with apparatus casing.
The beneficial effects of the utility model and advantage are: sealing plate of this seal arrangement and energy storage helical spring and pairing housing have constituted the mechanical seal pair of joint gap between rotatingshaft and the housing, can effectively prevent the evaporating, emitting, dripping or leaking of liquid or gas of described joint gap, simultaneously this seal arrangement also can be avoided the rotatingshaft leakage that causes of play up and down.This seal arrangement has reliable, the non-maintaining characteristics of use, can be widely used in the sealing of valve stem seal or other rotatingshaft of valve.The utlity model has simple in structure, good sealing effect and non-maintaining outstanding advantage.
Description of drawings
Accompanying drawing 1 the utility model embodiment 1 structural profile schematic representation.
Accompanying drawing 2 the utility model embodiments 2 structural profile schematic representation.
Accompanying drawing 3 the utility model embodiments 3 structural profile schematic representation.
Accompanying drawing 4 the utility model embodiments 4 structural profile schematic representation.
Number in the figure: 1 apparatus casing, 2 jacket casings, 3 end caps, 4 backing pins, semiaxis on 5,5-1 positive stop lug boss, 6 spring positioning plates, 7 energy storage helical springs, 8 backing plates, 9 balls, 10 times semiaxis, 10-1 sealing plate, 11 pressing plates, 11-1 annular boss, 12 mounting plates, 13 sealing gaskets.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Claims (5)
1, the seal arrangement between rotatingshaft and the housing, formed by apparatus casing, jacket casing and the end cap and the rotatingshaft that are threadedly connected to jacket casing, it is characterized in that: rotatingshaft is fixed with and covers joint gap between rotatingshaft and the apparatus casing and constitute the sealing plate of sealing pair with pairing housing, is provided with in the jacket casing to be set in rotatingshaft and to act on sealing plate to make it the energy storage helical spring of fluid-tight engagement in institute's corresponding housing.
2, seal arrangement according to claim 1, it is characterized in that: described sealing plate is positioned at the inboard of institute's corresponding device housing, and constitute the conical surface seal pair with pairing housing, its upper end of energy storage helical spring that is set in rotatingshaft in the jacket casing engages with the spring positioning plate of rotatingshaft setting, the lower end is provided with and is set in backing plate rotatingshaft, that have ball recess and ball thereof, and ball engages with the plane rolling of pairing apparatus casing.
3, seal arrangement according to claim 1, it is characterized in that: described sealing plate is positioned at the outside of institute's corresponding device housing, and constitute the conical surface seal pair with pairing housing, its upper end of energy storage helical spring that is set in rotatingshaft in the jacket casing is provided with and is set in backing plate rotatingshaft, that have ball recess and ball thereof, ball engages with the spring positioning plate that is fixed in jacket casing, energy storage helical spring lower end is provided with and is set in pressing plate rotatingshaft, that have annular boss, and annular boss engages with the sealing plate upper-end surface.
4, according to claim 1 or 2 or 3 described seal arrangements, it is characterized in that: described rotatingshaft is made of the upper and lower semiaxis of mutual socket, rotational support is in the last semiaxis of jacket casing end cap central bore, its underpart is provided with the square shaped core chamber of second shaft end of plug-in mounting, its bead is provided with the positive stop lug boss that engages with the end cap bottom end, and the last semiaxis in the end cap outside is provided with the backing pin that engages with the end cap upper-end surface.
5, according to claim 1 or 2 or 3 described seal arrangements, it is characterized in that: described apparatus casing is the mounting plate that is fixed in the jacket casing bottom, and this mounting plate and sealing plate constitute the conical surface seal pair and be tightly connected with apparatus casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027088 CN200943699Y (en) | 2006-08-21 | 2006-08-21 | Sealing device between rotary axis and shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027088 CN200943699Y (en) | 2006-08-21 | 2006-08-21 | Sealing device between rotary axis and shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943699Y true CN200943699Y (en) | 2007-09-05 |
Family
ID=38718330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620027088 Expired - Fee Related CN200943699Y (en) | 2006-08-21 | 2006-08-21 | Sealing device between rotary axis and shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943699Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235210A (en) * | 2014-09-04 | 2014-12-24 | 阜新柔金密封有限公司 | Crosshead shoe sealing shaft coupler |
| CN111617709A (en) * | 2020-05-29 | 2020-09-04 | 上海泽淦环境技术有限公司 | Material transmission shaft |
-
2006
- 2006-08-21 CN CN 200620027088 patent/CN200943699Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235210A (en) * | 2014-09-04 | 2014-12-24 | 阜新柔金密封有限公司 | Crosshead shoe sealing shaft coupler |
| CN111617709A (en) * | 2020-05-29 | 2020-09-04 | 上海泽淦环境技术有限公司 | Material transmission shaft |
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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: 20070905 Termination date: 20090921 |