CN201269307Y - Non-stuffing micro-contact shaft gland - Google Patents
Non-stuffing micro-contact shaft gland Download PDFInfo
- Publication number
- CN201269307Y CN201269307Y CNU2008201617013U CN200820161701U CN201269307Y CN 201269307 Y CN201269307 Y CN 201269307Y CN U2008201617013 U CNU2008201617013 U CN U2008201617013U CN 200820161701 U CN200820161701 U CN 200820161701U CN 201269307 Y CN201269307 Y CN 201269307Y
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- CN
- China
- Prior art keywords
- gland
- engagement shaft
- black box
- envelope
- oil sealing
- 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 relates to a packless micro-contact shaft seal, comprising an oil seal casing. The tail part of the oil seal casing is provided with an adjusting gland bush; the interior of the oil seal casing is hollow to form a cylindrical hollow cavity; a positioning device is arranged on the adjusting gland bush; a tubular seal assembly is arranged in the cylindrical hollow cavity; the outer diameter of the seal assembly is equal to the inner diameter of the cylindrical hollow cavity; and a plurality of annular protrusions are arranged at the inner wall of the seal assembly and along the axial direction of the seal assembly. The packless micro-contact shaft seal has the main advantages of simple structure, convenient assembly and disassembly, good sealing performance, low friction power consumption, stable running, safety, reliability and longer service life, is suitable for water pumps with inlet pressure below 0.2 MPa, can be widely applied to various pumps such as an ash pump, a slurry pump, a material pump and pumps with higher working pressure as well as rotating fluid machinery and stirring devices of various mediums.
Description
Technical field
The utility model relates to the movable sealing structure of pump class or other fluid machinery, specifically is the little engagement shaft envelope of a kind of no filler.
Background technique
Be extensive use of packing seal (packing) in the seal arrangement of centrifugal pump.Filler compresses with gland, the effect axially loaded of outer power, and radial expansion and axle sleeve surface closely contacts, and the face of a ring-type of formation contacts to be realized sealing.Gland presses De Taisong not reach sealing effect, and gland is pressed to such an extent that the mechanical wear of too tight pump shaft and filler is big, and the power of consumption is also big, even may cause the seize phenomenon, produces serious heating and wearing and tearing.So his impacting force is to adjust by the degree of heat at sealing position in field experience and the pump operation.
The model utility content
In order to solve the above-mentioned problems in the prior art, the utility model proposes the little engagement shaft envelope of a kind of no filler, concrete technological scheme is as follows:
The little engagement shaft of a kind of no filler envelope comprises the oil sealing shell, is provided with the adjustment gland at the afterbody of oil sealing shell; Described oil sealing enclosure is a hollow, constitutes cylindrical cavity; Adjust gland and be provided with positioning device.In cylindrical cavity, be provided with the tubulose black box; The external diameter of sealing assembly is identical with the cylindrical cavity internal diameter; The inwall of black box is provided with a plurality of annular protrusions.A plurality of annular protrusions are along the axially-aligned of black box.Describedly be provided with oilhole between per two annular protrusions of black box, be provided with oil groove between the oilhole on the black box, the oilhole on the black box interconnects by oil groove.By said structure, black box constitutes the selflubricating combined seal ring.
The stem of described oil sealing shell is provided with ring-type fine setting gland, and described black box is finely tuned gland and is enclosed in the oil sealing shell; The internal diameter of ring-type fine setting gland is not less than the internal diameter of annular protrusion.Described fine setting gland and oil sealing shell are provided with corresponding screw thread, are threaded by this between them.Regulate the pressure of fine setting gland by the rotary fine adjustment gland to black box.
Head and the tail two ends on described black box all are provided with end-face seal ring; The internal diameter of end-face seal ring is not less than the internal diameter of annular protrusion.
The center of circle of the interior circle of the interior circle of described annular protrusion, ring-type fine setting gland and the interior circle of end-face seal ring is coaxial.
On described casing wall, be provided with oilhole; Be provided with oil groove on the inwall of shell, oilhole is connected with oil groove.
Positioning device on the described adjustment gland is a screw fixed hole.
The material of described annular protrusion is an elastic material.Can select heat-resisting vulcanite or engineering plastics etc.
In the time of concrete the use, select this device corresponding to get final product with sleeve size.This device is contained in outside the black box axle sleeve, and the annular projection on the black box is with the axle sleeve surface that wire is little to be contacted.By fastening the device of screw positioning hole on the oil sealing shell afterbody adjustment gland.Black box is with the axle sleeve surface that wire is little to be contacted when pump shaft rotates.And being full of grease in the raceway groove that all becomes of adjacent two annular protrusions, frictional force is minimum during rotation.Can realize the conversion of pressure energy automatically.Black box and axle sleeve contact segment are elastic material, can not cause the vibrations and the damage of rotatable parts.
Major advantage of the present utility model is simple in structure, and mounting or dismounting are convenient, good seal performance, and friction power loss is low, and suitable pressure can reach more than the 1MPa, operates steadily, and is safe and reliable, and working life is longer.Can be widely used in the higher all kinds of pumps of ash pump, slag stock pump, product pump and working pressure, also can be used for the rotary fluid machinery and the mixing plant of all kinds of media.
Description of drawings
Fig. 1 is the utility model structure sectional view
Fig. 2 is the utility model cut-away view of outer cover
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
The little engagement shaft of a kind of no filler envelope comprises the oil sealing shell, is provided with the adjustment gland at the afterbody of oil sealing shell; Described oil sealing enclosure is a hollow, constitutes cylindrical cavity; Adjust gland and be provided with screw fixed hole.Positioning device.In cylindrical cavity, be provided with the tubulose black box; The external diameter of sealing assembly is identical with the cylindrical cavity internal diameter; The inwall of black box is provided with 5 annular protrusions.5 annular protrusions are along the axially-aligned of black box.
The stem of described oil sealing shell is provided with ring-type fine setting gland, and described black box is finely tuned gland and is enclosed in the oil sealing shell; The internal diameter of ring-type fine setting gland is not less than the internal diameter of annular protrusion.Described fine setting gland and oil sealing shell are provided with corresponding screw thread, are threaded by this between them.Head and the tail two ends on described black box all are provided with end-face seal ring; The internal diameter of end-face seal ring is not less than the internal diameter of annular protrusion.The center of circle of the interior circle of the interior circle of described annular protrusion, ring-type fine setting gland end and the interior circle of end-face seal ring is coaxial.Describedly be provided with oilhole between per two annular protrusions of black box, the oilhole on the black box interconnects by oil groove.On described casing wall, also be provided with oilhole; Be provided with oil groove on the inwall of shell, oilhole is connected with oil groove.The outer wall of described oil sealing shell is provided with zero RunddichtringO.
The utility model is integrated type, and is simple for structure, easy for installation.Former pump housing stuffing box is not done any change and can be installed.In rotation, do not need cooling water.Axial motion can not influence its sealing effect.
In pump housing disassembly process, at first remove coupling, dismantle bearing again, remove Gland (the former Gland in this device back is installed to be removed) then.This device then is installed, bearing is installed earlier, coupling is installed then, the bolt of evenly tightening on the gland gets final product.
Claims (10)
1, the little engagement shaft of a kind of no filler envelope comprises the oil sealing shell, is provided with the adjustment gland at the afterbody of oil sealing shell; Described oil sealing enclosure is a hollow, constitutes cylindrical cavity; Adjust gland and be provided with positioning device, it is characterized in that in cylindrical cavity, being provided with the tubulose black box; The external diameter of sealing assembly is identical with the cylindrical cavity internal diameter; The inwall of black box is provided with a plurality of annular protrusions, and a plurality of annular protrusions are along the axially-aligned of black box.
2, the little engagement shaft envelope of no filler according to claim 1 is characterized in that the stem of described oil sealing shell is provided with ring-type fine setting gland, and described black box is finely tuned gland and is enclosed in the oil sealing shell; The internal diameter of ring-type fine setting gland is not less than the internal diameter of annular protrusion.
3, the little engagement shaft envelope of no filler according to claim 2 is characterized in that described fine setting gland and oil sealing shell are provided with corresponding screw thread, are threaded by this between them.
4, according to claim 1 or the little engagement shaft envelope of 2 or 3 described no fillers, it is characterized in that all being provided with end-face seal ring at the head and the tail two ends of described black box; The internal diameter of end-face seal ring is not less than the internal diameter of annular protrusion.
5, the little engagement shaft of no filler according to claim 4 envelope is characterized in that the center of circle of the interior circle of the interior circle of interior circle, ring-type fine setting gland of described annular protrusion and end-face seal ring is coaxial.
6, the little engagement shaft of no filler according to claim 1 envelope is characterized in that describedly being provided with oilhole between per two annular protrusions of black box, is provided with oil groove between the oilhole on the black box.
7, the little engagement shaft envelope of no filler according to claim 1 is characterized in that being provided with oilhole on described casing wall; Be provided with oil groove on the inwall of shell, oilhole is connected with oil groove.
8, the little engagement shaft envelope of no filler according to claim 1 is characterized in that the positioning device on the described adjustment gland is a screw fixed hole.
9, the little engagement shaft envelope of no filler according to claim 1, the material that it is characterized in that described annular protrusion is an elastic material.
10, the little engagement shaft envelope of no filler according to claim 1 is characterized in that the outer wall of described oil sealing shell is provided with the O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201617013U CN201269307Y (en) | 2008-09-24 | 2008-09-24 | Non-stuffing micro-contact shaft gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201617013U CN201269307Y (en) | 2008-09-24 | 2008-09-24 | Non-stuffing micro-contact shaft gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269307Y true CN201269307Y (en) | 2009-07-08 |
Family
ID=40841906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201617013U Expired - Fee Related CN201269307Y (en) | 2008-09-24 | 2008-09-24 | Non-stuffing micro-contact shaft gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269307Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375427A (en) * | 2012-04-16 | 2013-10-30 | 三星泰科威株式会社 | Oil seal of compressor |
-
2008
- 2008-09-24 CN CNU2008201617013U patent/CN201269307Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375427A (en) * | 2012-04-16 | 2013-10-30 | 三星泰科威株式会社 | Oil seal of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LUO YUXIANG Free format text: FORMER OWNER: NANJING KEHE TECHNOLOGY CO., LTD. Effective date: 20110210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210009 ROOM 1808, TOWER A, TECHNOLOGY INNOVATION BUILDING, NANJING UNIVERSITY OF TECHNOLOGY, NO.5, NEW MODEL ROAD, GULOU DISTRICT, NANJING CITY, JIANGSU PROVINCE TO: 210009 ROOM 1805, TOWER A, TECHNOLOGY INNOVATION BUILDING, NANJING UNIVERSITY OF TECHNOLOGY, NO.5, NEW MODEL ROAD, GULOU DISTRICT, NANJING CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110210 Address after: 1805, room 210009, building A, science and technology building, Nanjing University of Technology, Jiangsu, Nanjing, 5, new exemplary Road, Gulou District, China Patentee after: Luo Yuxiang Address before: 1808, room 210009, building A, science and technology building, Nanjing University of Technology, Jiangsu, Nanjing, 5, new exemplary Road, Gulou District, China Patentee before: Nanjing Kehe Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: NANJING KEHE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LUO YUXIANG Effective date: 20110927 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110927 Address after: 210009, room 1808, building A, comprehensive experimental building, No. 5, new exemplary Road, Gulou District, Jiangsu, Nanjing Patentee after: Nanjing Kehe Technology Co., Ltd. Address before: 1805, room 210009, building A, science and technology building, Nanjing University of Technology, Jiangsu, Nanjing, 5, new exemplary Road, Gulou District, China Patentee before: Luo Yuxiang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20170924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |