CN2793459Y - Sealing assembly of rotary component - Google Patents
Sealing assembly of rotary component Download PDFInfo
- Publication number
- CN2793459Y CN2793459Y CN 200520025603 CN200520025603U CN2793459Y CN 2793459 Y CN2793459 Y CN 2793459Y CN 200520025603 CN200520025603 CN 200520025603 CN 200520025603 U CN200520025603 U CN 200520025603U CN 2793459 Y CN2793459 Y CN 2793459Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- half labyrinth
- rotary component
- dust
- utility
- 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 Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a sealing assembly for a rotary component, which belongs to the technical field of engineering sealing technology. The sealing assembly for a rotary component is used for solving the problem that rotary components are damaged because sealing performance is poor. The sealing assembly for a rotary component comprises a sealing ring. The utility model has the improved proposals that a half labyrinth type sealing piece is additionally arranged, and the half labyrinth type sealing piece and the sealing ring are axially arranged on a rotary shaft side by side, wherein the half labyrinth type sealing piece is composed of a half labyrinth sleeve and a sealing strip; an inner hole of the half labyrinth sleeve and the rotary shaft are in transition or interference fit; an annular slot is arranged on the half labyrinth sleeve, and the sealing strip is arranged in the slot. Aiming at the direct reason that an elastic ring of an ordinary seal piece is broken through by dust, which causes a bearing to be damaged, a rigid half labyrinth sealing sleeve which is fixedly connected with the shaft is arranged by the utility model. A plurality of barriers are formed on the rigid half labyrinth sealing sleeve by the sealing strip, which enables the dust to enter a sealing cavity after breaking through a plurality of barriers by sinuous movements. Thus the time of dust intrusion can be prolonged, the service life of the bearing can be effectively raised and the operating cost of equipment can be reduced. Indicated by test operations, the utility model enables 6-10 times of the service life of the bearing to be raised.
Description
Technical field
The utility model relates to a kind of Sealing, especially for the Sealing of the rotary component of working in the rugged environment of serious dust pollution, belongs to the engineering technical field of sealing technology.
Background technique
Rotary component is a kind of moving element the most common in the mechanical transmission, as various axle class parts.Rotatablely moving of rotary component needs bearings, and the quality of fit between axle and the bearing can directly influence the operation of entire equipment precision.For the axle class part in the rugged environment that are operated in serious dust pollution, the sealing at its bearing place is crucial, and dust is entered between axle and the bearing, is the major reason that causes axle or damage of bearings.Its damage process is analyzed as follows: shown in Figure 1, it is a kind of encapsulating method commonly used, it adopts skeleton oil seal, when axle rotates, outside dust is under the effect of external force F, along with the rotation of axle is extruded, breaks through the elastic ring of outside framework oil seal and enter the inner chamber of sealing, thereby cause the infringement of axle or bearing.In industries such as metallurgical mines, above-mentioned situation is comparatively common, as the just easy wear damage that therefore takes place of the main shaft bearing of monobucket wheel material taking machine, and the not only just frequent bearing of changing of its consequence, also can increase, cause speed reducer to beat tooth even burn-down of electric motor because of damage of bearings makes motor, speed reducer load.In addition, also occurred because the accident that the bearing fragment scraping bucket wheel axle that damages causes bucket wheel axle to scrap.To this problem, even if adopt special-purpose dust-proof seal ring effect still not good.
Summary of the invention
The utility model is used to overcome the defective of prior art and a kind of good seal performance is provided, can effectively reduces dust invasion and attack, prolongs the black box that is used for rotary component of bearing life.
The alleged problem of the utility model is that following technological scheme solves:
A kind of black box that is used for rotary component, comprise seal ring in the formation, its specialization is: set up half labyrinth, described half labyrinth and seal ring axially are arranged side by side on running shaft, described half labyrinth is made up of half labyrinth bush and Stamping Steel Ribbon, half labyrinth bush endoporus and running shaft transition or interference fit, half labyrinth bush is provided with annular ditch groove, and Stamping Steel Ribbon is filled in the groove.
The above-mentioned black box that is used for rotary component, the annular ditch groove on described half labyrinth bush is 2～5 roads.
The above-mentioned black box that is used for rotary component, described seal ring are outside framework oil seal and dust-proof seal ring.
The utility model causes the immediate cause of damage of bearings at dust breakthrough conventional seals part elastic ring, designed rigidity half labyrinth packing gland that forms a fixed connection with axle, form successive barriers by Stamping Steel Ribbon on it, make dust need wriggling movement to break through successive barriers and just can enter Seal cage, therefore can prolong the time of dust invasion greatly, effectively improve bearing life, reduce the various device fault that causes because of the bearing infringement, enhance productivity, reduce operating cost.The utility model is installed on the bucket wheel axle, and sealing effect is fine, makes improve 5～10 times the working life of bearing and bucket wheel axle, and has saved the time of a large amount of maintenances of equipment.
Description of drawings
Fig. 1 seals schematic representation on the common rotary component;
Fig. 2 is the utility model structural representation;
Fig. 3 is the utility model user mode schematic representation.
The label of each parts is expressed as follows in the accompanying drawing: 1. half labyrinth; 2. half labyrinth bush; 3. Stamping Steel Ribbon; 4. seal ring; 5. saturating lid; 6. running shaft.
Embodiment
Referring to Fig. 2, the utility model is at shown in Figure 1, and dust is easily broken through the barrier damage bearing of conventional seals device or the problem of axle, sets up half labyrinth 1 on running shaft, by half labyrinth and seal ring dust is formed bilayer screen barrier retaining dust.Referring to Fig. 2, half labyrinth is made up of half labyrinth bush 2 and Stamping Steel Ribbon 3, and half labyrinth bush is provided with 2～5 road annular ditch grooves, and Stamping Steel Ribbon is filled in the groove.The physical dimension of the quantity apparent rotation parts of groove and deciding, certainly, the many more sealing effects of bar number are good more, but physical dimension must strengthen simultaneously, and Fig. 2 adopts 3.
Referring to Fig. 3, half labyrinth bush endoporus and running shaft 6 are formed a fixed connection by transition or interference fit, do not have the gap between the two, because half labyrinth bush is a rigid pipe, resiliently deformable do not take place, and therefore blocks dust enters Seal cage from here fully.Stamping Steel Ribbon presses and covers 5 inwalls, after dust is broken through the seal ring the first line of defence, the necessary turning movement of wriggling, the successive barriers of breaking through Stamping Steel Ribbon again just can enter into Seal cage, therefore, compare with common unit, the time that dust enters Seal cage prolongs greatly, and axle also improves with bearing working life thereupon greatly.Seal ring can adopt illustrated outside framework oil seal, also can adopt dust-proof seal ring.
The equipment that the utility model is suitable for the work under bad environment such as metallurgy, mine uses. Even if use separately half fan Palace formula seal also can reach the sealing effectiveness that is better than the conventional seals circle.
Claims (3)
1. black box that is used for rotary component, comprise seal ring in the formation, it is characterized in that: set up half labyrinth (1), described half labyrinth and seal ring (4) axially are arranged side by side on running shaft (6), described half labyrinth is made up of half labyrinth bush (2) and Stamping Steel Ribbon (3), half labyrinth bush endoporus and running shaft transition or interference fit, half labyrinth bush is provided with annular ditch groove, and Stamping Steel Ribbon is filled in the groove.
2. the black box that is used for rotary component according to claim 1 is characterized in that: the annular ditch groove on described half labyrinth bush is 2～5 roads.
3. the black box that is used for rotary component according to claim 2 is characterized in that: described seal ring is outside framework oil seal and dust-proof seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025603 CN2793459Y (en) | 2005-04-18 | 2005-04-18 | Sealing assembly of rotary component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025603 CN2793459Y (en) | 2005-04-18 | 2005-04-18 | Sealing assembly of rotary component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793459Y true CN2793459Y (en) | 2006-07-05 |
Family
ID=36820604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520025603 Expired - Fee Related CN2793459Y (en) | 2005-04-18 | 2005-04-18 | Sealing assembly of rotary component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793459Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846187A (en) * | 2009-02-17 | 2010-09-29 | Skf公司 | Labyrinth-type excluder and the method for making labyrinth-type excluder |
| CN102313022A (en) * | 2011-03-18 | 2012-01-11 | 江苏华机环保设备有限责任公司 | Shaft seal structure in bagasse metering device |
| CN106352097A (en) * | 2016-11-05 | 2017-01-25 | 张海娟 | Combined labyrinth sealing device |
| CN107575579A (en) * | 2017-04-24 | 2018-01-12 | 西安应用光学研究所 | A kind of panorama photoelectric observing takes aim at the combined type rotary dynamic sealing structure of equipment |
| CN110425287A (en) * | 2019-09-05 | 2019-11-08 | 张家港市众利机电制造有限公司 | A kind of labyrinth ring structure that dust seal effect is good |
-
2005
- 2005-04-18 CN CN 200520025603 patent/CN2793459Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846187A (en) * | 2009-02-17 | 2010-09-29 | Skf公司 | Labyrinth-type excluder and the method for making labyrinth-type excluder |
| CN102313022A (en) * | 2011-03-18 | 2012-01-11 | 江苏华机环保设备有限责任公司 | Shaft seal structure in bagasse metering device |
| CN106352097A (en) * | 2016-11-05 | 2017-01-25 | 张海娟 | Combined labyrinth sealing device |
| CN106352097B (en) * | 2016-11-05 | 2018-01-26 | 张海娟 | Combined labyrinth sealing device |
| CN107575579A (en) * | 2017-04-24 | 2018-01-12 | 西安应用光学研究所 | A kind of panorama photoelectric observing takes aim at the combined type rotary dynamic sealing structure of equipment |
| CN107575579B (en) * | 2017-04-24 | 2019-05-31 | 西安应用光学研究所 | A kind of panorama photoelectric observing takes aim at the combined type rotary dynamic sealing structure of equipment |
| CN110425287A (en) * | 2019-09-05 | 2019-11-08 | 张家港市众利机电制造有限公司 | A kind of labyrinth ring structure that dust seal effect is good |
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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 |