CN201027977Y - Non-contact mechanical sealing device - Google Patents
Non-contact mechanical sealing device Download PDFInfo
- Publication number
- CN201027977Y CN201027977Y CNU2006200496262U CN200620049626U CN201027977Y CN 201027977 Y CN201027977 Y CN 201027977Y CN U2006200496262 U CNU2006200496262 U CN U2006200496262U CN 200620049626 U CN200620049626 U CN 200620049626U CN 201027977 Y CN201027977 Y CN 201027977Y
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- CN
- China
- Prior art keywords
- return tray
- shaped
- seal ring
- contact mechanical
- return
- 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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- Sealing Devices (AREA)
Abstract
The utility model relates to a non-contact mechanical gland bush, in particular to a gland bush with a large-scale output axis in the staple post treatment production line. The non-contact mechanical gland bush is characterized in that the utility model comprises a packing ring, a return tray, an end closure and a gland strip, the packing ring is in a fixed manner arranged on a shaft and rotates with the shaft, the cross section of one side of the packing ring is J-shaped and is axisymmetric, the cross section of one side of the return tray is C-shaped and is axisymmetric, the J-shaped packing ring matches with the C-shaped return tray in a way of buckling, the skirt side of the outer side of the return tray is pinned by the end closure and is fixed to a positive speed gearbox body, the lower part of the return tray is provided with an oil return hole, and the gland strip is embedded between the return tray and the end closure and the gearbox body. The utility model is of simple structure, reliable sealing, no leakage and long service life. The sealing assembly is abrasion resistant with the sealing effect free from the temperature and speed.
Description
(1) technical field
The utility model relates to non-contact mechanical seal device, relates in particular to have the large-scale seal arrangement that goes out shaft device in the staple fibre post treatment production line.
(2) background technique
Drafting machine is maximum equipment that uses in the staple fibre post treatment production line, and its function is precursor to be carried out the drawing-off of various degree between each drafting machine, to increase the fineness and the intensity of tow.The drawing-off of tow is to realize by the speed difference of front and back two drafting machine draw roll, draw roll is mounted in the rotary barrel on the speed reducer shaft, need sealing to guarantee the normal lubricated of bearing between itself and the casing, prevent that oil leak from polluting tow and falling end cost of production.Existing seal arrangement is the method that adopts oil baffle disc to combine with the labyrinth, because the labyrinth structure processed complex, and the installation requirement height, and oil baffle disc can only block part oil, and oily permeability is strong, still is easy to generate the oil impregnate phenomenon in use for some time.
(3) summary of the invention
The purpose of this utility model is to overcome existing seal arrangement processed complex, seals insecure defective, and a kind of non-contact mechanical seal device is provided, and the sealing device adopts inner Oil Guide structure, and sealing is reliable, and long service life is simple in structure.
The utility model is achieved in that a kind of non-contact mechanical seal device, it is characterized in that: comprise seal ring, return tray, end cap, Stamping Steel Ribbon, seal ring is fixedly mounted on the axle and rotates with the axis, one side cross section of seal ring is J-shaped and is the axisymmetric shape, return tray one side cross section is C shape and is the axisymmetric shape, the J-shaped seal ring fastens mutually with C shape return tray and cooperates, the outer side shirt edge of return tray is pushed down by end cap and is fixed on the deceleration box, the return tray bottom has spill port, setting-in Stamping Steel Ribbon between return tray and end cap and casing.
Described end cap bottom has long-pending oil groove and spill port, and long-pending oil groove is connected with spill port.
Have many W shapes on the J-shaped outer side surface of described seal ring and get rid of oil groove.
The utility model adopts inner Oil Guide structure, has substituted original oil baffle disc and labyrinth structure with the fixing C shape return tray and the J-shaped seal ring of rotation, thereby has overcome existing seal arrangement processed complex, seal insecure defective.Sealing device structure of the present utility model is simple, and sealing is reliable, does not have and leaks long service life.Black box is not easy to wear, and sealing effect is not subjected to the influence of temperature, speed.
(4) description of drawings
Fig. 1 is the utility model non-contact mechanical seal device structural representation;
Among the figure: 1 casing, 2 sealed ubber strips, 3 seal rings, 4 return traies, 5 end caps, 6 spill ports, 7,8 bearings.9 drawing-off roller seats
(5) embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of non-contact mechanical seal device comprises seal ring 3, return tray 4, end cap 5, Stamping Steel Ribbon 2.Seal ring 3 is fixedly mounted on the axle 7 and rotates with axle 7, and seal ring 3 home records are close to bearing 8, drafted roller seat 9 restrictions of overside.One side cross section of seal ring 3 is J-shaped and is the axisymmetric shape, has many W shapes on the J-shaped outer side surface of seal ring 3 and get rid of oil groove; Return tray 4 one side cross sections are C shape and are the axisymmetric shape, return tray 4 outer side shirt edges are pushed down by end cap 5 and are fixed on the deceleration box 1, J-shaped seal ring 3 fastens mutually with C shape return tray 4 and cooperates, and the seal ring 3 of feasible return tray of fixing 4 and rotation cooperatively interacts and is the sealing of contactless state.Return tray 4 bottoms have spill port 6, and end cap 5 bottoms have long-pending oil groove and spill port 6, and long-pending oil groove is connected with spill port 6, make the oil that flows out to lead and get back in the fuel tank.1 setting-in sealed ubber strip 2 of return tray 4 and end cap 5 and casing.
The working procedure of non-contact mechanical seal device is: seal ring 3 directly keeps off back casing 1 with major part oil, remaining oil imports the inside groove of return tray 4 by seal ring 3 when low speed, the inside groove of return tray 4 is that oil all flows to the water jacket of return tray 4 under action of gravity near the axle center; Remaining oil is directly got rid of water jacket to return tray 4 by seal ring 3 when high speed.Oil in return tray 4 water jackets is gone in the fuel tank for 6 times by the spill port of return tray 4 water jacket bottoms.Seal ring 3 and 4 micro oils that ooze out of return tray are led oil sump tank by the long-pending oil groove of stepped shaft and the spill port 6 that are located on the end cap 5.2 pairs of casings of Stamping Steel Ribbon 1 seal with end cap 5 connection places with return tray 4 and return tray 4.
Sealing device structure of the present utility model is simple, and sealing is reliable, does not have and leaks long service life.Black box is not easy to wear, and sealing effect is not subjected to the influence of temperature, speed.
Claims (3)
1. non-contact mechanical seal device, it is characterized in that: comprise seal ring, return tray, end cap, Stamping Steel Ribbon, seal ring is fixedly mounted on the axle and rotates with the axis, one side cross section of seal ring is J-shaped and is the axisymmetric shape, return tray one side cross section is C shape and is the axisymmetric shape that the J-shaped seal ring fastens mutually with C shape return tray and cooperates, and the outer side shirt edge of return tray is pushed down by end cap and is fixed on the deceleration box, the return tray bottom has spill port, setting-in Stamping Steel Ribbon between return tray and end cap and casing.
2. non-contact mechanical seal device according to claim 1 is characterized in that: the end cap bottom has long-pending oil groove and spill port, and long-pending oil groove is connected with spill port.
3. non-contact mechanical seal device according to claim 1 and 2 is characterized in that: have many W shapes on the J-shaped outer side surface of seal ring and get rid of oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200496262U CN201027977Y (en) | 2006-12-27 | 2006-12-27 | Non-contact mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200496262U CN201027977Y (en) | 2006-12-27 | 2006-12-27 | Non-contact mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027977Y true CN201027977Y (en) | 2008-02-27 |
Family
ID=39132187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200496262U Expired - Fee Related CN201027977Y (en) | 2006-12-27 | 2006-12-27 | Non-contact mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027977Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934272A (en) * | 2014-05-13 | 2014-07-23 | 常州市武进广宇花辊机械有限公司 | Oil-saving bearing matched structure for high-speed hot rolling mill |
| CN104179977A (en) * | 2014-08-15 | 2014-12-03 | 李天维 | Non-contact mechanical rotary seal |
-
2006
- 2006-12-27 CN CNU2006200496262U patent/CN201027977Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934272A (en) * | 2014-05-13 | 2014-07-23 | 常州市武进广宇花辊机械有限公司 | Oil-saving bearing matched structure for high-speed hot rolling mill |
| CN104179977A (en) * | 2014-08-15 | 2014-12-03 | 李天维 | Non-contact mechanical rotary seal |
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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: 20080227 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |