CN2429693Y - Contactive sealor for shaft mechanism - Google Patents
Contactive sealor for shaft mechanism Download PDFInfo
- Publication number
- CN2429693Y CN2429693Y CN 00215214 CN00215214U CN2429693Y CN 2429693 Y CN2429693 Y CN 2429693Y CN 00215214 CN00215214 CN 00215214 CN 00215214 U CN00215214 U CN 00215214U CN 2429693 Y CN2429693 Y CN 2429693Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing baffle
- spring
- guiding trestle
- bar
- 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 relates to a contact type sealing device for a shaft mechanism, which is composed of a halving type casing and circular arc section sealing components; the number of the sealing components is an even number larger than two; the sealing components are installed in the casing and form a sealed circular ring. The utility model is characterized in that each sealing component is composed of a bar-shaped spring piece, an arc-shaped guide support frame, and a sealing baffle plate; the bar-shaped spring piece is fixed on the guide support frame; both ends of the spring piece are butted with the inner wall of the casing; the sealing baffle plate is inlaid in a groove of the guide support frame; one side of the sealing baffle plate is also provided with an embedded sealing spring; the sealing components make radial free float under the action of the elastic force of the spring and causes the inner ring surface of the sealing baffle plate to contact with the surface of a rotating shaft so as to form reliable seal.
Description
The present invention relates to the seal arrangement of a kind of shaft sealer of rotary machine, particularly bearing.
In the industries such as electric power, machinery, metallurgy, chemical industry, various rotating power equipment rotating shaft place liquid or gas " run, drip, leak " phenomenon are seen everywhere, for addressing this problem various seal arrangement is arranged on the existing equipment, but all fail to deal with problems well, sealing effect is unsatisfactory.The disclosed patent 94109382.4 of Patent Office of the People's Republic of China " prevented oil, water, hydrogen leakage mechanism " in 1994, a kind of new seal arrangement is proposed, utilize sealing baffle directly to contact and solved sealing problem with rotating shaft, the elastic force of reed directly acts in the rotating shaft by guide plate and oil baffle but this device is hit by a bullet, and causes rotating shaft damage and oil baffle to wear and tear fast easily; In addition, this apparatus structure complexity, the many places bolted on connection, not only installation, maintenance, adjust complicated, and poor reliability, in case generations bolt looseness in service or come off, singly influencing sealing effect also can produce rotating shaft damage accident.
The invention provides a kind of good sealing effect, simple in structure, reliable shaft sealer.
The object of the present invention is achieved like this: contact-type mechanical seal for axle, form by midsplit type housing and arc section black box, the sealing group number of packages is the even number greater than 2, be contained in and be a sealed circular ring in the housing, be characterized in that black box is by the bar-spring sheet, arcuate guide support and sealing baffle are formed, the bar-spring sheet is fixed on the guiding trestle, two ends and inner walls offset, sealing baffle is embedded in the groove of guiding trestle, one side of sealing baffle also has an insert seal spring, black box free floating radially under the effect of spring force, and make the inner ring surface of sealing baffle contact the formation reliable sealing with the rotating shaft surface.
On guiding trestle, two ends and inner walls offset spring sheet by screw, produce elastic force and are applied on the guiding trestle, and spring sheet and guiding trestle are made by metallic material.
Sealing baffle is assemblied on the guiding trestle by groove, adopt the plug-in type tenon structure to connect between the adjacent seals baffle plate, the part sealing surface is overlapped each other constitute a complete sealed circular ring, sealing baffle is made radially free floating under the effect of spring force, and has the single-piece float function, and the inner ring surface of sealing baffle is contacted with the rotating shaft surface, realize axial seal.Sealing baffle is made with rubber or plastics.
Packing spring adopts the plug-in type tenon structure to embed a side of sealing baffle, push against the formation radial seal with a side of adjacent seals baffle plate, and balance each other with the elastic force of the spring sheet of black box, play the effect of relative " soft spacing ", prolonged the working life of seal arrangement effectively.Packing spring is made with elastic caoutchouc.
The present invention adopts the plug-in type tenon structure to connect, and is simple in structure, assemble simple and easyly, and good sealing effect, and can not damage rotating shaft adopts bar-spring sheet and Packing spring autobalance soft spacing, plays the contact seal function of floating veritably, seals reliably, and the life-span is long.
Below in conjunction with accompanying drawing the present invention is described in detail:
Fig. 1: contact-type mechanical seal for axle schematic representation
Wherein: 1-housing, 2-spring sheet, 3-set screw, 4-guiding trestle,
5-rubber spring, 6-sealing baffle, 7-rotating shaft.
Fig. 2: sealing baffle schematic representation
Wherein: 8-groove, 9-convex shoulder.
A kind of contact-type mechanical seal for axle, be made up of cast steel midsplit type housing 1 and four arc section black boies that are assemblied in the housing, black box is made up of manganese steel bar-spring sheet 2, set screw 3, copper arcuate guide support 4, rubber spring 5 and fluoroplastic sealing baffle 6.Bar-spring sheet 2 is fixed on the guiding trestle 4 by set screw 3, two ends and housing 1 inwall offset, and produce elastic force and are applied on the guiding trestle, and black box is made radially free floating under the effect of spring force, and the inner ring surface of sealing baffle 6 is contacted with rotating shaft 7 surfaces, form reliable sealing.Sealing baffle 6 is assemblied in the groove of guiding trestle 4 by dovetail groove, adopt rectangle tongue and groove structure to be coupled to a complete sealed circular ring between the adjacent seals baffle plate, need not any fastening piece, avoided problem loosening because of fastening piece or that come off and cause the sealing variation or injure rotating shaft.Sealing baffle 6 is made radially free floating under the effect of spring sheet 2 elastic force, and has the single-piece float function, realizes axial seal.The Packing spring made from elastic caoutchouc 5 adopts the plug-in type tenon structure to embed a side of sealing baffle 6, push against the formation radial seal with a side of adjacent seals baffle plate, here, rubber spring 5 plays two effects: one is guaranteed positive confinement between two sealing baffles, it two balances each other with the elastic force of spring sheet 2, be unlikely to damage rotating shaft 7 and sealing baffle 6 excessive wears, wearing and tearing along with sealing baffle 6, the elastic force of spring sheet 2 diminishes gradually, the elastic force of rubber spring 5 progressively increases, play the effect of relative " soft spacing ", this dual spring ultromotivity equilibrium structure can be improved the sealing effect of seal arrangement effectively, prolong the working life of seal arrangement.
Claims (4)
1. contact-type mechanical seal for axle, form by middle housing parts and arc section black box, the sealing group number of packages is the even number spare greater than 2, be contained in and be a sealed circular ring in the housing, it is characterized in that: said black box is made up of bar-spring sheet, arcuate guide support and sealing baffle, and the bar-spring sheet is fixed on the guiding trestle, and two ends and inner walls offset, sealing baffle is embedded in the groove of guiding trestle, and a side of sealing baffle also is embedded with a Packing spring.
2. according to the described contact-type mechanical seal for axle of claim 1, it is characterized in that described bar-spring sheet by screw on guiding trestle, spring sheet and guiding trestle are made by metallic material.
3. it is characterized in that according to the described contact-type shaft sealer of claim 2: described sealing baffle is assemblied on the guiding trestle by groove, adopt the plug-in type tenon structure to connect between the adjacent seals baffle plate, make the part sealing surface folded mutually, sealing baffle is made with rubber or plastics.
4. it is characterized in that according to the described contact-type shaft sealer of claim 3: the side seal spring of described sealing baffle adopts the plug-in type tenon structure to be nested in a side of sealing baffle, and Packing spring is made with elastic caoutchouc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215214 CN2429693Y (en) | 2000-06-27 | 2000-06-27 | Contactive sealor for shaft mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215214 CN2429693Y (en) | 2000-06-27 | 2000-06-27 | Contactive sealor for shaft mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429693Y true CN2429693Y (en) | 2001-05-09 |
Family
ID=33581199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00215214 Expired - Fee Related CN2429693Y (en) | 2000-06-27 | 2000-06-27 | Contactive sealor for shaft mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429693Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824214A (en) * | 2019-12-06 | 2020-02-21 | 林毓松 | Outer wiring device that draws of electric power instrument case fixed mounting |
-
2000
- 2000-06-27 CN CN 00215214 patent/CN2429693Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824214A (en) * | 2019-12-06 | 2020-02-21 | 林毓松 | Outer wiring device that draws of electric power instrument case fixed mounting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |