CN203202177U - Shaft sealing device of gearbox - Google Patents
Shaft sealing device of gearbox Download PDFInfo
- Publication number
- CN203202177U CN203202177U CN 201320197100 CN201320197100U CN203202177U CN 203202177 U CN203202177 U CN 203202177U CN 201320197100 CN201320197100 CN 201320197100 CN 201320197100 U CN201320197100 U CN 201320197100U CN 203202177 U CN203202177 U CN 203202177U
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- CN
- China
- Prior art keywords
- ring
- shaped
- end cap
- running shaft
- groove
- 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 - Lifetime
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Abstract
The utility model relates to a shaft sealing device of a gearbox. The shaft sealing device of the gearbox comprises a box body, a rotating shafts and an end cover. The end cover is fixedly connected with the box body in a sealed mode, and an inner annular maze groove and an outer ring-shaped maze groove are formed in the combined portion of the end cover and the rotating shaft. A ring-shaped oil collecting groove is formed between the two maze grooves. An oil returning hole is formed in the bottom of the ring-shaped oil collecting groove, and an oil throwing device is arranged on the rotating shaft corresponding to the ring-shaped oil collecting groove in the end cover. A V-shaped dustproof ring is arranged on the outer side of the end cover, a center hole of the V-shaped dustproof ring is matched with the shaft diameter of the rotating shaft, a ring groove is formed in a rotating shaft closely adjacent to the end face of the outer side of the V-shaped dustproof ring, and an O-shaped ring is matched in the ring groove. A protruded weir is formed at an edge opening of the ring-shaped groove by the O-shaped ring, and the outer side of the V-shaped dustproof ring is limited by the protruded weir formed by the O-shaped ring. A seam allowance of the inner side of the V-shaped dustproof ring is lower than the outer side of the end cover.
Description
Technical field
The utility model relates to a kind of seal arrangement, especially a kind of shaft sealer of gear-box.
Background technique
Sealing is to guarantee that the normal operation of gear-box does not produce the important step of oil leakage phenomenon, in existing gear-box sealing configuration, great majority adopt the contact seal of outside framework oil seal pattern, oil sealing directly contacts with axle journal can produce a large amount of heats, accelerate the aging of oil sealing, cause the gear-box leakage of oil, need often to change oil sealing.And outside framework oil seal has higher requirement to diameter tolerance, surface finishment, surface hardness and the concentricity of the sympodium that matches.
The model utility content
The purpose of this utility model is: aging easily at existing gear-box sealing, and to diameter tolerance, surface finishment, surface hardness and the concentricity requirement condition with higher of the sympodium that matches, provide a kind of new oily non-contact type gear-box that gets rid of to seal.
The purpose of this utility model is achieved in that a kind of shaft sealer of gear-box, comprises casing, running shaft and end cap, it is characterized in that:
A) end cap is fixedlyed connected with box sealing, and end cap and running shaft connecting part are provided with inside and outside twice annular maze trough, are annular oil trap between the twice maze trough, and the bottom of annular oil trap is provided with spill port;
B) corresponding with annular oil trap on end cap running shaft is provided with oil thrower;
C) outside of end cap is provided with the V-type dust ring, the center hole of V-type dust ring and the diameter of axle of running shaft coupling, the running shaft of next-door neighbour's V-type dust ring outside end face is provided with annular groove one, is furnished with O type circle in the annular groove, O type circle forms protruding weir at the circular groove bead, the outside of V-type dust ring is spacing by the protruding weir that O type circle forms, and the inboard seam of V-type dust ring is lower than the outside of end cap.
In the utility model, the oil thrower on the running shaft is: at running shaft the adjacent circular groove of twice is set, one overlap that forms in the middle of the twice circular groove.
In the utility model, in casing, the bearing of supporting rotating shaft is positioned at the inboard of end cap to running shaft by bearings.
Advantage of the present utility model is: because end cap is provided with inside and outside twice annular maze trough, it is annular oil trap between the twice maze trough, be provided with oil thrower with the running shaft that annular oil trap is corresponding on the end cap, lubricant oil in the gear-box is difficult to pass through twice annular maze trough and an oil thrower, reaches sealing effect; Owing to do not relate to rubber parts substantially in the sealing part, do not have the problem of ageing of rubber; Because oil thrower is at running shaft the adjacent circular groove of twice to be set, one overlap that in the middle of the twice circular groove, forms, processing is simple, lubricant oil is thrown in the annular oil trap of end cap under the leading role of centrifugal force that running shaft forms and overlap, gets back to rapidly in the gear-box by spill port then and can not hoard; Because the end cap outside is provided with the V-type dust ring, can stop outside dust or foreign material to enter gear-box.
Description of drawings:
Fig. 1 is the utility model embodiment's structural representation.
Among the figure: 1, casing, 2, end cap, 3, bearing, 4, running shaft, 5, O type circle, 6, the V-type dust ring, 7, annular maze trough, 8, annular oil trap, 9, spill port, 10, oil thrower, 11, oil duct.
Embodiment:
Accompanying drawing discloses the utility model embodiment's concrete structure without limitation, and the utility model will be further described below in conjunction with accompanying drawing.
As seen from Figure 1, the utility model comprises casing 1, running shaft 4 and end cap 2, and end cap 2 is sealedly and fixedly connected with casing 1, and end cap 2 is provided with inside and outside twice annular maze trough 7 with running shaft 4 connecting parts, be annular oil trap 8 between the twice maze trough 7, the bottom of annular oil trap 8 is provided with spill port 9; The running shaft 4 corresponding with annular oil trap on the end cap 28 is provided with oil thrower 10.The outside of end cap 2 is provided with V-type dust ring 6, the diameter of axle coupling of the center hole of V-type dust ring 6 and running shaft 4, the running shaft 4 of next-door neighbour's V-type dust ring 6 outside end faces is provided with annular groove one, is furnished with O type circle 5 in the annular groove, O type circle 5 forms protruding weir at the circular groove bead, the outside of V-type dust ring 6 is spacing by the protruding weir that O type circle 5 forms, and inboard seam is lower than the outside of end 2, prevents that dust from entering gear-box inside.Described running shaft 4 is supported in casing 1 by bearing 3, and the bearing 3 of supporting rotating shaft 4 is positioned at the inboard of end cap 2.
In the present embodiment, the oil thrower 10 on the running shaft 4 is: at running shaft 4 the adjacent circular groove of twice is set, one overlap that forms in the middle of the twice circular groove.
In the work, when running shaft 4 rotates at a high speed, a large amount of lubricant oil enter in the bearing 3 by the oil duct 11 of casing 1, have only a spot of lubricant oil to outbound flow through axle journal by the gap of 2mm between end cap 2 and the bearing 3, when oil thrower 10 places that flow to running shaft 4, because under the acting in conjunction of centrifugal force and overlap, lubricant oil is radially flown out along the overlap of oil thrower, enter in the annular oil trap 8 of end cap 2, spill port on end cap 29 is got back in the gear-box again, so just guarantee that lubricant oil can not flow to end cap 2 outsides again, oil leakage phenomenon occurs.
Claims (3)
1. the shaft sealer of a gear-box comprises casing, running shaft and end cap, it is characterized in that:
A) end cap is fixedlyed connected with box sealing, and end cap and running shaft connecting part are provided with inside and outside twice annular maze trough, are annular oil trap between the twice maze trough, and the bottom of annular oil trap is provided with spill port;
B) corresponding with annular oil trap on end cap running shaft is provided with oil thrower;
C) outside of end cap is provided with the V-type dust ring, the center hole of V-type dust ring and the diameter of axle of running shaft coupling, the running shaft of next-door neighbour's V-type dust ring outside end face is provided with annular groove one, is furnished with O type circle in the annular groove, O type circle forms protruding weir at the circular groove bead, the outside of V-type dust ring is spacing by the protruding weir that O type circle forms, and the inboard seam of V-type dust ring is lower than the outside of end cap.
2. the shaft sealer of gear-box according to claim 1 is characterized in that, the oil thrower on the running shaft is: at running shaft the adjacent circular groove of twice is set, one overlap that forms in the middle of the twice circular groove.
3. the shaft sealer of gear-box according to claim 1 and 2 is characterized in that, in casing, the bearing of supporting rotating shaft is positioned at the inboard of end cap to running shaft by bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197100 CN203202177U (en) | 2013-04-18 | 2013-04-18 | Shaft sealing device of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197100 CN203202177U (en) | 2013-04-18 | 2013-04-18 | Shaft sealing device of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202177U true CN203202177U (en) | 2013-09-18 |
Family
ID=49146286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320197100 Expired - Lifetime CN203202177U (en) | 2013-04-18 | 2013-04-18 | Shaft sealing device of gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202177U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758986A (en) * | 2014-01-10 | 2014-04-30 | 宁波东力机械制造有限公司 | Gear box hollow splined shaft output structure |
| CN105790482A (en) * | 2016-04-21 | 2016-07-20 | 卧龙电气集团股份有限公司 | Side-plate type vibration motor |
| CN106321656A (en) * | 2016-08-31 | 2017-01-11 | 苏州哥特机械有限公司 | Agricultural machine wheel hub unit |
| CN109185346A (en) * | 2018-11-12 | 2019-01-11 | 中车北京南口机械有限公司 | Bearing holder (housing, cover), gear-box and rail vehicle |
| CN109681616A (en) * | 2018-12-28 | 2019-04-26 | 南京高速齿轮制造有限公司 | Gear-box bearing ring seal structure |
-
2013
- 2013-04-18 CN CN 201320197100 patent/CN203202177U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758986A (en) * | 2014-01-10 | 2014-04-30 | 宁波东力机械制造有限公司 | Gear box hollow splined shaft output structure |
| CN103758986B (en) * | 2014-01-10 | 2016-08-17 | 宁波东力传动设备有限公司 | A kind of gear-box hollow splined shaft export structure |
| CN105790482A (en) * | 2016-04-21 | 2016-07-20 | 卧龙电气集团股份有限公司 | Side-plate type vibration motor |
| CN105790482B (en) * | 2016-04-21 | 2019-01-04 | 卧龙电气集团股份有限公司 | Side board type vibrating motor |
| CN106321656A (en) * | 2016-08-31 | 2017-01-11 | 苏州哥特机械有限公司 | Agricultural machine wheel hub unit |
| CN109185346A (en) * | 2018-11-12 | 2019-01-11 | 中车北京南口机械有限公司 | Bearing holder (housing, cover), gear-box and rail vehicle |
| CN109681616A (en) * | 2018-12-28 | 2019-04-26 | 南京高速齿轮制造有限公司 | Gear-box bearing ring seal structure |
| CN109681616B (en) * | 2018-12-28 | 2022-04-05 | 南京高速齿轮制造有限公司 | Gear box slip ring seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191008 Address after: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210000 Co-patentee after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Patentee after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Address before: Yuhuatai District of Nanjing City, Jiangsu province 210012 outside the Chinese small especially Jia Ao No. 3 Patentee before: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200511 Address after: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210000 Patentee after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Address before: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210000 Co-patentee before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Patentee before: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |