CN2740844Y - Load variable mechanical floating sealer - Google Patents
Load variable mechanical floating sealer Download PDFInfo
- Publication number
- CN2740844Y CN2740844Y CN 200320114522 CN200320114522U CN2740844Y CN 2740844 Y CN2740844 Y CN 2740844Y CN 200320114522 CN200320114522 CN 200320114522 CN 200320114522 U CN200320114522 U CN 200320114522U CN 2740844 Y CN2740844 Y CN 2740844Y
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- CN
- China
- Prior art keywords
- sealing
- ring
- elastic component
- utility
- sealing component
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- 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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- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing device of the plunger piston of a reciprocating machine or the shaft of a rotating machine which can bear variable load and frequent pressure fluctuation. The utility model mainly comprises a supporting ring, an elastic component, an isolation ring, a sealing component, a floating sheath, an adjusting press cover and a bolt. On the machine body, one end is provided with the supporting ring and the isolation ring. The elastic component is installed between the supporting ring and the isolation ring. The middle part is provided with the sealing component. One side of the sealing component is closely connected with the isolation ring. The other end is provided with the floating sheath and the sealing ring and connected with the adjusting press cover. A bolt and an anti-loosing washer are arranged on the adjusting press cover. The upper part of the sealing component is a sleeve and a shaft. The pretightening degree of the sealing component can change and float according to the working press. The availability under the condition of variable loads can be guaranteed. The lifetime of the sealing component can be prolonged. The utility model is especially suitable in the environment of milling medium or corrosive medium and the utility model has the advantages of the simple structure, the low expense and the easy installment, maintenance and change.
Description
Affiliated technical field
The utility model relates to a kind ofly can bear the plunger of the frequent reciprocating machine of varying load, pressure surge or the shaft seal of rotating machinery, is specially adapted to exist the environment of tempering property medium or Korrosionsmedium.
Background technique
At present, in various machineries, bear the reciprocating machine or the rotating machinery of varying load, as acid fracturing pump, oil hydraulic motor, aerodynamic brake etc., pressure constantly fluctuates during work, it may be clocklike that this fluctuation changes, and also may be random, and the sealing of its running shaft or reciprocal plunger etc. is the requisite vitals that guarantees machine proper functioning under varying load or rated working pressure.With the acid fracturing pump is example, and its working medium is tempering property or strong corrosive material, and these materials itself just may cause to a certain degree damage to Sealing, and simultaneously, its working stroke is high pressure (about about 100MPa), and sealing needs higher pretightening force; Its backhaul be in low-pressure state (≤1MPa), sealing does not need excessive pretension.Conventional solution is that Sealing is carried out pretension by contingent maximum service pressure, and the result causes the unnecessary wearing and tearing of Sealing when backhaul, has shortened its working life greatly, has reduced the reliability of work.How to guarantee in time provides reliable sealing according to the variation of working pressure, is the problem that current urgency need to wait solution.
Summary of the invention
In order to overcome the deficiency of existing this technology, the utility model provides a kind of varying load mechanical float seal arrangement, and this device can float at random according to the variation of working pressure, adjust the pretension of Sealing, obtain rational seal degree to guarantee the Sealing that bears continuous live load.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of varying load mechanical float seal arrangement, mainly formed by support ring 1, elastic component 2,4, isolating ring 5, Sealing 6, floating bushing 9, seal ring 10, adjusting gland 12, bolt 11 and lock washer 13, its technical characteristics is: on body 3, the one end is installed annular elastic component 2 and elastic component 4 in the middle of annular brace ring 1, isolating ring 5, two rings are set; The Sealing 6 of ring-type is set in the middle of isolating ring 5 and floating bushing 9, and the left side of Sealing 6 is right after isolating ring 5, and the opposite side of Sealing 6 connects floating bushing 9, and O-ring seal 10 is installed on the floating bushing 9, and connects the adjusting gland 12 that is made of a plurality of annulars; Regulate on the gland 12 and dispose bolt 11 and lock washer 13; Reciprocating plunger or the running shaft 8 installed in the inner Join sleeve 7 of Sealing 6 and the sleeve.The effect of support ring 1 does not damage the body of left end when being to guarantee elastic component 2,4 distortion.The effect of isolating ring 5 is to protect Sealing 6 not cause damage because of the motion of elastic component 2,4.Sleeve 7 can reduce plunger or 8 whens work of axle and be subjected to unnecessary scratch because of the effect of inside tempering property medium or because of the distortion of elastic component.The effect of lock washer 13 is to guarantee the reliability of bolted on connection.
During installation, make floating bushing 9 move to a certain degree (as the accompanying drawing left), guarantee that Sealing 6 has required basic sealability under initial pretightening force to direction initialization by coupling bolt 11.Variation along with working pressure, varying load effect is on floating bushing 9, compressing floating bushing 9 makes it along axis a left side (right side) motion to take place, the power that causes this motion is by Sealing 6, isolating ring 5, support ring 1, be delivered on the elastic component 2,2 side-to-side movements of compressing elastic component, force elastic component 4 to be out of shape thereupon, the deformation resistance that causes thus reacts on the Sealing 6, and Sealing 6 is floated with variation in pressure, and is compacted or loosen, realize the variation of autobalance external load, regulate the effect of sealing tightening degree.
The beneficial effects of the utility model are: the pretension degree of (1) Sealing can be floated according to the variation of working pressure, both can guarantee the validity of varying load lower seal, has prolonged the working life of Sealing simultaneously again; (2) the utility model both had been applicable to motive sealing, also was applicable to the static seal under the varying load, was specially adapted to have the environment of tempering property medium or Korrosionsmedium, needed the automatic compensation sealing part that the to a certain degree occasion of slight damage often takes place; (3) this apparatus structure is simple, and is cheap, is applicable to unconventional little space application, and is easy to install, safeguards and changes.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is an assembly structure schematic representation of the present utility model.
1. support rings among the figure, 2. elastic component, 3. body, 4. elastic component, 5. isolating ring, 6. Sealing, 7. sleeve, 8. spool or plunger, and 9. floating bushing, 10. seal ring, 11. bolts, 12. regulate glands, 13. lock washers.
Embodiment
During installation, on body 3, the one end is installed annular elastic component 2 and cyclic spring assembly 4 in the middle of annular support ring 1 and annular isolation ring 5, two rings are installed earlier according to accompanying drawing; The Sealing 6 of ring-type is installed in the middle of isolating ring 5 and floating bushing 9; Seal ring 10 is installed on floating bushing 9, and is connect the adjusting gland 12 that constitutes by a plurality of annulars; Regulate on the gland 12 and be equipped with bolt 11 and lock washer 13; Reciprocating plunger or the running shaft 8 installed in the inner Join sleeve 7 of Sealing 6 and the sleeve.Adjust the position of the adjusting gland 12 that constitutes by a plurality of annulars again by connecting bolt 11, oppress annular floating bushing 9, make annular floating bushing 9 move a desired location, guarantee that the Sealing 6 with ring-type has required basic sealability because of being subjected to initial pretightening force to an end.When varying load effect was on floating bushing 9, the active force compressing floating bushing 9 that varying load produces made it along the axis to-and-fro motion of running shaft 8 (or circular plunger).This power is by Sealing 6, annular isolation ring 5, annular brace ring 1, be delivered on the cyclic spring assembly 4, compressing elastic component 4 left sides (right side) motion, force cyclic spring assembly 2 to produce radial deformation (as expansion, the contraction of ring elastic parts), the deformation resistance that causes thus reacts on the Sealing 6 by elastic component 4, isolating ring 5, make Sealing 6 compacted or loosen, realize the purpose of suitable floating seal tightening degree with variation in pressure.The effect of annular floating bushing 9 is that the variation that guarantees external load all is delivered on the elastic component 2,4.Elastic component 2,4 can be according to the height of rated working pressure, and the physical dimension of Sealing 6 size and the deformation space that allows are carried out radial and axial design of structural size or selection, for example adopt cyclic spring assembly or other suitable elastic components.According to the excursion of pressure, the clean degree of working medium and physical dimension are determined the structure of floating bushing 9, quantity, size and the position of required O-ring seal 10 (as O-ring seals).
Claims (1)
1. varying load mechanical float seal arrangement, mainly formed by support ring, elastic component, isolating ring, Sealing, floating bushing, seal ring, adjusting gland, bolt and lock washer, it is characterized in that: on body, the one end is provided with annular brace ring, isolating ring, in the middle of two rings annular elastic component 2 and elastic component 4 is installed; The Sealing of ring-type is set in the middle of isolating ring and floating bushing, and the left side of Sealing is right after isolating ring, and the opposite side of Sealing is installed on floating bushing, the floating bushing seal ring is installed, and connects the adjusting gland that is made of a plurality of annulars; Regulate on the gland and dispose bolt and lock washer; Reciprocating plunger or the running shaft installed in the inner Join sleeve of Sealing and the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114522 CN2740844Y (en) | 2003-11-07 | 2003-11-07 | Load variable mechanical floating sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114522 CN2740844Y (en) | 2003-11-07 | 2003-11-07 | Load variable mechanical floating sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740844Y true CN2740844Y (en) | 2005-11-16 |
Family
ID=35351134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114522 Expired - Fee Related CN2740844Y (en) | 2003-11-07 | 2003-11-07 | Load variable mechanical floating sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2740844Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005657A (en) * | 2017-12-13 | 2019-07-12 | 罗伯特·博世有限公司 | Hydraulic cylinder |
-
2003
- 2003-11-07 CN CN 200320114522 patent/CN2740844Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005657A (en) * | 2017-12-13 | 2019-07-12 | 罗伯特·博世有限公司 | Hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or 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 |