CN205383242U - A sealing device for gear box hole - Google Patents
A sealing device for gear box hole Download PDFInfo
- Publication number
- CN205383242U CN205383242U CN201521134453.XU CN201521134453U CN205383242U CN 205383242 U CN205383242 U CN 205383242U CN 201521134453 U CN201521134453 U CN 201521134453U CN 205383242 U CN205383242 U CN 205383242U
- Authority
- CN
- China
- Prior art keywords
- gear
- profile
- tooth
- box
- sealing ring
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 239000004519 grease Substances 0.000 claims description 14
- 239000000314 lubricant Substances 0.000 claims description 9
- 230000000875 corresponding Effects 0.000 claims description 6
- 210000003027 Ear, Inner Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 210000003128 Head Anatomy 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model provides a sealing device for gear box hole includes the gear box at least and installs the gear in the gear box, the tip fixedly connected with profile of tooth sealing ring of gear, the one end and the gear looks fixed connection of profile of tooth sealing ring, the cross -section of its other end is anti - C style of calligraphy, comprises inner ring, outer loop and go -between, wherein on the endocyclic outer disc, all be provided with the bellied sealed ring gear of at least round along circumference on the interior disc of outer loop and the outer disc, the opening part of gear box be provided with the annular profile of tooth sealed cowling of circle, the border fixed connection of the one end of profile of tooth sealed cowling and the opening part of gear box, the other end of profile of tooth sealed cowling lies in the inside of profile of tooth sealing ring and lies in between inner ring and the outer loop, all is provided with the bellied isolation ring gear of at least round along circumference on the interior disc of profile of tooth sealed cowling and the outer disc. The device provided by the utility model simple structure, long service life, sealing performance is good.
Description
Technical field
The present invention relates to a kind of sealing device, particularly relate to a kind of sealing device for gear case holes for gearbox seals, belong to sealing member technical field.
Background technology
Labyrinth seal is to set several belt sealing teeth being arranged in order rotating around axle, is formed and a series of dam gap and expand cavity between tooth and tooth, sealed medium when passing through the gap in tortuous labyrinth generation throttle effect and reach the device of the purpose of Drain Resistance.Owing to there is gap between the rotor of labyrinth seal and casing, without solid contact, and allowed thermal expansion, and therefore adapting to the occasion of high temperature, high pressure, high speed-frequency, this seal form is widely used in the sealing of steam turbine, gas turbine, compressor, the axle head of aerator and each inter-stage.
In the occasion that some instructions for uses are stricter, sealing device not only to reach the zero leakage of lubricating oil in annular seal space in use, but also to reach to prevent the pollutant in the external world from entering the purpose within annular seal space, in addition, also there is higher requirement in service life for sealing member, therefore it provides a kind of sealing property is very excellent, and the sealing device of long perfomance life, becomes this area problem demanding prompt solution.
Summary of the invention
This utility model provides a kind of sealing device for gear case holes, solves the deficiency in background technology, and this apparatus structure is simple, long service life, good seal performance.
Realizing the technical scheme that this utility model above-mentioned purpose adopts is:
A kind of sealing device for gear case holes, at least include gear-box and the gear being installed in gear-box, described gear rotates in gear-box, annular seal space is formed between the outer flank of tooth and the gear-box of gear, described annular seal space there is lubricant grease, the end of described gear is fixedly connected with profile of tooth sealing ring, one end of profile of tooth sealing ring and gear are fixedly connected, the cross section of its other end is anti-C font, by internal ring, outer shroud and connection ring composition, wherein on the periphery of internal ring, the all circumferentially arranged sealing ring gear having at least one circle protruding on the inner headed face of outer shroud and periphery；The opening part of described gear-box is provided with circular profile of tooth seal closure, one end of profile of tooth seal closure is fixing with the edge of the opening part of gear-box to be connected, the other end of profile of tooth seal closure is in the inside of profile of tooth sealing ring and between internal ring and outer shroud, the all circumferentially arranged isolation ring gear having at least one circle protruding on the inner headed face of profile of tooth seal closure and periphery, described isolation ring gear is positioned at the inside of profile of tooth sealing ring, and be staggeredly set with sealing ring gear, isolation ring gear is collectively forming separate cavities with sealing ring gear, separate cavities is by isolated with the external world for annular seal space, stiff grease it is filled with in separate cavities；Described profile of tooth seal closure and gear-box fix and remain stationary, and profile of tooth sealing ring rotates relative to profile of tooth seal closure with the rotation of gear.
Being provided with screwed hole on the side of annular seal space on the inner headed face of gear, profile of tooth sealing ring is provided with the through hole corresponding with screwed hole, through hole and be provided with fixing bolt in screwed hole, profile of tooth sealing ring is installed fixing by fixing bolt and gear.
The opening edge of gear-box is provided with screwed hole, and profile of tooth seal closure is provided with the through hole corresponding with screwed hole, through hole and be provided with fixing bolt in screwed hole, and profile of tooth seal closure is installed fixing by fixing bolt and gear-box.
Compared with prior art, technical scheme provided by the utility model has the advantage that when gear rotates, namely lubricant grease in gear-box adheres on gear, and under gravity, a portion lubricant grease can flow to the outside of profile of tooth sealing ring vertically, under the stop sealing ring gear, flow into the lubricant grease outside flute profile sealing ring and then flow back in gear-box.Sealing the separate cavities formed between ring gear and isolation ring gear, separate cavities is filled relatively stiff grease, be used for intercepting the impurity such as extraneous steam flue dust and invade in annular seal space, play effective dustproof effect.
Accompanying drawing explanation
The structural representation of the sealing device for gear case holes that Fig. 1 provides for this utility model；
In figure: 1-gear-box, 2-gear, 3-annular seal space, 4-internal ring, 5-outer shroud, 6-seals ring gear, 7-profile of tooth seal closure, and 8-isolates ring gear, and 9-fixes bolt.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model done detailed specific description.
The structure of the sealing device for gear case holes that this utility model provides is as shown in Figure 1, at least include gear-box 1 and the gear 2 being installed in gear-box 1, described gear 2 rotates in gear-box 1, form annular seal space 3 between the outer flank of tooth and the gear-box 1 of gear 2, described annular seal space 3 has lubricant grease.
The end of described gear 2 is fixedly connected with profile of tooth sealing ring, the inner headed face that gear 2 is axial is provided with screwed hole on the side of annular seal space, profile of tooth sealing ring is provided with the through hole corresponding with screwed hole, being provided with fixing bolt 9 in through hole and screwed hole, profile of tooth sealing ring is installed fixing by fixing bolt 9 and gear.Profile of tooth sealing ring is in the form of a ring, its one end and gear are fixedly connected, the cross section of its other end is anti-C font, by internal ring 4, outer shroud 5 with connect ring and form, wherein on the periphery of internal ring 4, all circumferentially arranged sealing ring gear 6 having at least one circle protruding on the inner headed face of outer shroud 5 and periphery.
The opening part of described gear-box 1 is provided with circular profile of tooth seal closure 7, and one end of profile of tooth seal closure 7 is fixing with the edge of the opening part of gear-box 1 to be connected, and the other end of profile of tooth seal closure 7 is in the inside of profile of tooth sealing ring and between internal ring 4 and outer shroud 5.The opening edge of gear-box 1 is provided with screwed hole, and profile of tooth seal closure 7 is provided with the through hole corresponding with screwed hole, through hole and be provided with fixing bolt 9 in screwed hole, and profile of tooth seal closure 7 is installed fixing by fixing bolt and gear-box 1.The all circumferentially arranged isolation ring gear 8 having at least one circle protruding on the inner headed face of profile of tooth seal closure 7 and periphery, described isolation ring gear 8 is positioned at the inside of profile of tooth sealing ring, and be staggeredly set with sealing ring gear 6, isolation ring gear 8 is collectively forming separate cavities with sealing ring gear 6, separate cavities is isolated with the external world by annular seal space, is filled with stiff grease in separate cavities.
Described profile of tooth seal closure and gear-box fix and remain stationary, and profile of tooth sealing ring rotates relative to profile of tooth seal closure with the rotation of gear.When gear rotates, namely lubricant grease in gear-box adheres on gear, and under gravity, a portion lubricant grease can flow to the outside of profile of tooth sealing ring vertically, under the stop of external seal ring gear, flow into the lubricant grease outside flute profile sealing ring and then flow back in gear-box.Sealing be formed with separate cavities between ring gear and isolation ring gear, separate cavities is filled relatively stiff grease, be used for intercepting the impurity such as extraneous steam flue dust and invade in annular seal space, play effective dustproof effect.
Claims (3)
1. the sealing device for gear case holes, at least include gear-box and the gear being installed in gear-box, described gear rotates in gear-box, annular seal space is formed between the outer flank of tooth and the gear-box of gear, described annular seal space there is lubricant grease, it is characterized in that: the end of described gear is fixedly connected with profile of tooth sealing ring, one end of profile of tooth sealing ring and gear are fixedly connected, the cross section of its other end is anti-C font, by internal ring, outer shroud and connection ring composition, wherein on the periphery of internal ring, the all circumferentially arranged sealing ring gear having at least one circle protruding on the inner headed face of outer shroud and periphery；The opening part of described gear-box is provided with circular profile of tooth seal closure, one end of profile of tooth seal closure is fixing with the edge of the opening part of gear-box to be connected, the other end of profile of tooth seal closure is in the inside of profile of tooth sealing ring and between internal ring and outer shroud, the all circumferentially arranged isolation ring gear having at least one circle protruding on the inner headed face of profile of tooth seal closure and periphery, described isolation ring gear is positioned at the inside of profile of tooth sealing ring, and be staggeredly set with sealing ring gear, isolation ring gear is collectively forming separate cavities with sealing ring gear, separate cavities is by isolated with the external world for annular seal space, stiff grease it is filled with in separate cavities；Described profile of tooth seal closure and gear-box fix and remain stationary, and profile of tooth sealing ring rotates relative to profile of tooth seal closure with the rotation of gear.
2. the sealing device for gear case holes according to claim 1, it is characterized in that: the inner headed face of gear is provided with screwed hole on the side of annular seal space, profile of tooth sealing ring is provided with the through hole corresponding with screwed hole, being provided with fixing bolt in through hole and screwed hole, profile of tooth sealing ring is installed fixing by fixing bolt and gear.
3. the sealing device for gear case holes according to claim 1, it is characterized in that: the opening edge of gear-box is provided with screwed hole, profile of tooth seal closure is provided with the through hole corresponding with screwed hole, being provided with fixing bolt in through hole and screwed hole, profile of tooth seal closure is installed fixing by fixing bolt and gear-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134453.XU CN205383242U (en) | 2015-12-31 | 2015-12-31 | A sealing device for gear box hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134453.XU CN205383242U (en) | 2015-12-31 | 2015-12-31 | A sealing device for gear box hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383242U true CN205383242U (en) | 2016-07-13 |
Family
ID=56347577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521134453.XU Expired - Fee Related CN205383242U (en) | 2015-12-31 | 2015-12-31 | A sealing device for gear box hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383242U (en) |
-
2015
- 2015-12-31 CN CN201521134453.XU patent/CN205383242U/en not_active Expired - Fee Related
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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: 20160713 Termination date: 20171231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |