CN105317981A - Seal structure of planetary speed reducer - Google Patents
Seal structure of planetary speed reducer Download PDFInfo
- Publication number
- CN105317981A CN105317981A CN201510907749.9A CN201510907749A CN105317981A CN 105317981 A CN105317981 A CN 105317981A CN 201510907749 A CN201510907749 A CN 201510907749A CN 105317981 A CN105317981 A CN 105317981A
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- Prior art keywords
- annular
- oil
- seal
- ring
- sealing configuration
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a seal structure of a planetary speed reducer. The seal structure comprises a box body, an input gear sleeve, an oil pipe assembly and a deep groove ball bearing. The main points lie in that an annular oil baffle is arranged between the input gear sleeve above the deep groove ball bearing and the box body, and the annular oil baffle is fastened on the box body by screws; and a seal sleeve, an oil seal retainer ring, a single-lip seal ring, a double-lip seal ring and a hole retainer ring are sequentially arranged on the input gear sleeve below the deep groove ball bearing, and the oil seal retainer ring and the seal sleeve are in buckling connection through an annular groove and an annular flange on the oil seal retainer ring and the seal sleeve. The seal structure is a three-level composite seal structure formed by adopting the annular oil baffle, the seal sleeve, the oil seal retainer ring, the single-lip seal ring, the double-lip seal ring and the axial positioning of the hole retainer ring. The axial seal effect is great, and the consumption of lubricating oil is reduced. Moreover, external dust and vapor are isolated, so that lubricating oil is not polluted or oxidized. When the seal structure is used for a ship speed reducing mechanism, the running and maintenance fees of a ship can be effectively reduced, and the economy is great.
Description
Technical field
The present invention relates to a kind of sealing configuration, be specifically related to a kind of sealing configuration of planetary speed reducer.
Background technique
The sealing configuration of existing planetary speed reducer, is sealed by oil seal collar, O-ring seals and haplocheilic type seal ring between casing and input tooth cover.Oil seal collar is fixed on casing, and O-ring seals and single lip-type packing are all fixed on oil seal collar.Oil seal collar blocks a large amount of lubricant oil, the oil mass of being leaked outward by oil seal collar and input tooth cover gap is greatly reduced, O-ring seals below seals up the gap between casing and oil seal collar, and single lip-type packing seals up the gap between input tooth cover and oil seal collar.This single-stage sealing configuration is excessive at oil pressure, and when vibrating strong, when oil pressure increases, lubricant oil easily squeezes out from the junction of single lip-type packing and input tooth cover; Next is this sealing configuration good seal in the horizontal direction, in the vertical direction, oil easily axially outwards leaks along tooth cover, and sealing effect is bad, the sealing effect being exactly thirdly this sealing configuration changes by the change of the factors such as oil pressure, and sealing effect is unstable.
Summary of the invention
The object of the invention is to provide a kind of structure simple, the sealing configuration of the planetary speed reducer that sealing effect is stable.
The sealing configuration of planetary speed reducer of the present invention, comprise casing, input tooth cover, oil pipe component and deep groove ball bearing, it is characterized in that: the input tooth of the top of described deep groove ball bearing puts and is provided with annular oil baffle, annular oil baffle by screws tighten on casing; Described casing, input tooth cover and annular oil baffle form first order sealing configuration, lubricating oil from annular oil baffle and casing and input tooth overlap between gap flow through, deep groove ball bearing is lubricated; The input tooth of the below of described deep groove ball bearing puts and is provided with stuffing box gland, oil seal collar, haplocheilic type seal ring, lips RunddichtringO and hole back-up ring successively; Described stuffing box gland is formed by sleeve with the annular groove flange that sleeve is connected as a single entity, and annular groove flange is provided with annular groove; Described oil seal collar is provided with the annular flange flange corresponding with the annular groove on stuffing box gland, and oil seal collar and stuffing box gland fasten together with form is linked in by the annular groove on it and annular flange flange, form second level sealing configuration; Haplocheilic type seal ring, lips RunddichtringO and oil seal collar form third level sealing configuration.
In order to better realize described object:
Described annular oil baffle and casing and input tooth overlap between gap be 3 ~ 10 millimeters.
Described annular oil baffle is provided with mounting hole and annular seal groove.
Gap between described stuffing box gland and oil seal collar and input tooth overlap is 2 ~ 5 millimeters.
Described oil seal collar is provided with installing ring and O shape annular groove, and O shape annular groove is equipped with O-ring seals.
Three grades of compound sealing structures that sealing configuration of the present invention adopts annular oil baffle, stuffing box gland, oil seal collar, haplocheilic type seal ring and lips RunddichtringO and hole back-up ring axially locating to form, this compound sealing structure vertically, sealing configuration is reasonable, good sealing effect in vertical direction and radial direction, hole back-up ring effectively prevents moving axially of double-lipped seal ring, sealing effect can not change with the change of working state, good stability; Simultaneously by gap control, improve lubrication effect and the operating life of bearing; Double-lipped seal ring not only improves sealability, reduces the consumption of lubricating oil, also serves isolated external dust and steam simultaneously, and lubricant oil is not contaminated and be oxidized, and extends the work timing of lubricant oil, good economy performance; For reducing gear peculiar to vessel, easy for installation, good reliability, can effectively reduce the operation and maintenance cost of ship.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of annular oil baffle.
Fig. 3 is the combination assembling schematic diagram of stuffing box gland and oil seal collar.
Fig. 4 is single lip-type packing and double-lipped seal ring combination assembling schematic diagram.
Fig. 5 is the structural representation of stuffing box gland.
Fig. 6 is the structural representation of oil seal collar.
In figure: 1, stuffing box gland, 2, oil pipe component, 3, casing, 4, lips RunddichtringO, 5, haplocheilic type sealing, 6, input tooth cover, 7, hole back-up ring, 8, oil seal collar, 9, O-ring seals, 10, deep groove ball bearing, 11, annular oil baffle, 12, mounting hole, 13, annular seal groove, 14, annular groove, 15, annular flange flange, 16, installing ring, 17, O shape annular groove.
Embodiment
The sealing configuration of planetary speed reducer of the present invention, comprises casing 3, input tooth cover 6, oil pipe component 2 and deep groove ball bearing 10.The input tooth cover 6 of the top of deep groove ball bearing 10 is provided with annular oil baffle 11, and annular oil baffle 11 is provided with mounting hole 12 and annular seal groove 13, by screws tighten at casing 3.Casing 3, input tooth cover 6 and annular oil baffle 11 form first order sealing configuration.Annular oil baffle 11 and casing 3 and input tooth overlap 6 between stay 5 millimeters of gaps, lubricant oil flows through this gap and lubricates deep groove ball bearing 10.
Input tooth cover 6 in the below of deep groove ball bearing 10 is provided with stuffing box gland 1, oil seal collar 8, haplocheilic type seal ring 5, lips RunddichtringO 4 and hole back-up ring 7 successively.Stuffing box gland 1 is formed by sleeve with the annular groove flange that sleeve is connected as a single entity, and annular groove flange is provided with annular groove 14.Oil seal collar 8 is provided with the annular flange flange 15 corresponding with the annular groove 14 on stuffing box gland 1, installing ring 16 and O shape annular groove 17, O shape annular groove 17 overlap O-ring seals 9.Oil seal collar 8 by the installing ring 16 on it by screws tighten on casing 3.Oil seal collar 8 and stuffing box gland 1 fasten together with form is linked in by the annular groove 14 on it and annular flange flange 15, form second level sealing configuration.
Leave 2 millimeters of gaps between stuffing box gland 1 and oil seal collar 8 and input tooth overlaps, input tooth overlap 6 motion can not be influenced.
Oil seal collar 8, haplocheilic type seal ring 5, lips RunddichtringO 4 and O-ring seals 9 form third level sealing configuration.
During work, lubricating oil enters people's lubricating cavity from the fuel supply line of oil pipe component 2, flow through annular oil baffle 11 and the input tooth interval of overlapping between 6 and casing 3 is lubricated deep groove ball bearing 10, the second level and third level sealing effectively stop lubricating oil to overlap 6 axial seepages along input tooth, and the lubricating oil after lubrication deep groove ball bearing 10 is got back in oil tank through the return tube of oil pipe component 2.
Claims (5)
1. the sealing configuration of a planetary speed reducer, comprise casing (3), input tooth cover (6), oil pipe component (2) and deep groove ball bearing (10), it is characterized in that: between the input tooth cover (6) of the top of described deep groove ball bearing (10) and casing (3), be provided with annular oil baffle (11), annular oil baffle (11) by screws tighten on casing (3); Described casing (3), input tooth cover (6) and annular oil baffle (11) formation first order sealing configuration, lubricating oil flows through from annular oil baffle (11) and casing (3) and the gap inputted between tooth cover (6), lubricates deep groove ball bearing (10); The input tooth cover (6) of the below of described deep groove ball bearing (10) is provided with successively stuffing box gland (1), oil seal collar (8), haplocheilic type seal ring (5), lips RunddichtringO (4) and hole back-up ring (7); Described stuffing box gland (1) is formed by sleeve with the annular groove flange that sleeve is connected as a single entity, and annular groove flange is provided with annular groove (14); Described oil seal collar (8) is provided with the annular flange flange (15) corresponding with the annular groove (14) on stuffing box gland (1), together with oil seal collar (8) and stuffing box gland (1) are linked in by the annular groove (14) on it and annular flange flange (15) fastening form, form second level sealing configuration; Haplocheilic type seal ring (5), lips RunddichtringO (4) and oil seal collar (8) form third level sealing configuration.
2. sealing configuration according to claim 1, is characterized in that: described annular oil baffle (11) and casing (3) and the gap inputted between tooth cover (6) are 3 ~ 10 millimeters.
3. sealing configuration according to claim 1, is characterized in that: described annular oil baffle (11) is provided with mounting hole (12) and annular seal groove (13).
4. sealing configuration according to claim 1, is characterized in that: described stuffing box gland (6) and the gap between oil seal collar (8) and input tooth cover (6) are 2 ~ 5 millimeters.
5. sealing configuration according to claim 1, is characterized in that: described oil seal collar (8) is provided with installing ring (16) and O shape annular groove (17), O shape annular groove (17) is equipped with O-ring seals (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907749.9A CN105317981B (en) | 2015-12-10 | 2015-12-10 | A kind of sealing structure of planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907749.9A CN105317981B (en) | 2015-12-10 | 2015-12-10 | A kind of sealing structure of planetary reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105317981A true CN105317981A (en) | 2016-02-10 |
| CN105317981B CN105317981B (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510907749.9A Active CN105317981B (en) | 2015-12-10 | 2015-12-10 | A kind of sealing structure of planetary reducer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369146A (en) * | 2016-11-28 | 2017-02-01 | 四川工程职业技术学院 | Vertical planet gear case input end structure |
| CN106594183A (en) * | 2016-12-05 | 2017-04-26 | 湖南南方宇航高精传动有限公司 | Speed-up gear box with input shaft and output shaft having same axis and same rotation direction |
| CN107283300A (en) * | 2017-07-04 | 2017-10-24 | 广东赛因迪科技股份有限公司 | A kind of planetary bistrique with anti-oil leakage mechanism |
| CN113357369A (en) * | 2021-05-11 | 2021-09-07 | 中国船舶重工集团武汉船舶工业有限公司 | Sealing structure of speed reducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181139A (en) * | 2000-12-11 | 2002-06-26 | Sumitomo Heavy Ind Ltd | Structure of output flange of speed reduction gear |
| CN201763953U (en) * | 2010-05-14 | 2011-03-16 | 青岛开世密封工业有限公司 | End face positioning oil seal for gear shifting shaft |
| CN104110480A (en) * | 2014-06-25 | 2014-10-22 | 陕西高华知本化工科技有限公司 | Sealing device of speed reducer |
| CN204061299U (en) * | 2014-05-13 | 2014-12-31 | 上海尔华杰机电装备制造有限公司 | A kind of blower fan retarder with double-sealing device |
| CN205207622U (en) * | 2015-12-10 | 2016-05-04 | 湖南南方宇航高精传动有限公司 | Sealing structure of planetary reducer |
-
2015
- 2015-12-10 CN CN201510907749.9A patent/CN105317981B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181139A (en) * | 2000-12-11 | 2002-06-26 | Sumitomo Heavy Ind Ltd | Structure of output flange of speed reduction gear |
| CN201763953U (en) * | 2010-05-14 | 2011-03-16 | 青岛开世密封工业有限公司 | End face positioning oil seal for gear shifting shaft |
| CN204061299U (en) * | 2014-05-13 | 2014-12-31 | 上海尔华杰机电装备制造有限公司 | A kind of blower fan retarder with double-sealing device |
| CN104110480A (en) * | 2014-06-25 | 2014-10-22 | 陕西高华知本化工科技有限公司 | Sealing device of speed reducer |
| CN205207622U (en) * | 2015-12-10 | 2016-05-04 | 湖南南方宇航高精传动有限公司 | Sealing structure of planetary reducer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369146A (en) * | 2016-11-28 | 2017-02-01 | 四川工程职业技术学院 | Vertical planet gear case input end structure |
| CN106594183A (en) * | 2016-12-05 | 2017-04-26 | 湖南南方宇航高精传动有限公司 | Speed-up gear box with input shaft and output shaft having same axis and same rotation direction |
| CN107283300A (en) * | 2017-07-04 | 2017-10-24 | 广东赛因迪科技股份有限公司 | A kind of planetary bistrique with anti-oil leakage mechanism |
| CN113357369A (en) * | 2021-05-11 | 2021-09-07 | 中国船舶重工集团武汉船舶工业有限公司 | Sealing structure of speed reducer |
| CN113357369B (en) * | 2021-05-11 | 2024-05-28 | 中国船舶重工集团武汉船舶工业有限公司 | Sealing structure of speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105317981B (en) | 2017-10-20 |
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