CN105090457A - Sealing mechanism for reduction gearbox - Google Patents
Sealing mechanism for reduction gearbox Download PDFInfo
- Publication number
- CN105090457A CN105090457A CN201510458592.6A CN201510458592A CN105090457A CN 105090457 A CN105090457 A CN 105090457A CN 201510458592 A CN201510458592 A CN 201510458592A CN 105090457 A CN105090457 A CN 105090457A
- Authority
- CN
- China
- Prior art keywords
- input shaft
- gear oil
- oil
- oil groove
- 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.)
- Pending
Links
Classifications
-
- 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)
- General Details Of Gearings (AREA)
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a sealing mechanism for a reduction gearbox. The sealing mechanism comprises a reduction gearbox input shaft support and a power input shaft installed on the input shaft support. A main oil retainer is arranged on an input shaft of the inner side of the input shaft support. A first oil retainer is further arranged at the portion, making contact with the input shaft support, of the input shaft. A first oil retaining groove corresponding to the first oil retainer is arranged at the portion, on the external circle of the first oil retainer, of the input shaft support. The depth of the first oil retaining groove is 0.5-1 mm larger than the height of the first oil retainer. An oil recycling groove is arranged at the portion, on the outward side of the first oil retaining groove, of the input shaft support. The oil recycling groove is connected with an oil returning opening inside a box body through a pipeline. The sealing mechanism has the beneficial effects of being compact in structure and reliable in performance, prolonging the service life and preventing dust and oil.
Description
Technical field
The present invention relates to a kind of rotating shaft sealing mechanism, a kind of sealing mechanism for speed reducer rotating shaft, belongs to mechanized equipment technical field specifically.
Background technique
Speed reducer is a kind of power transmission mechanism, utilizes the velocity transducer of gear, and the winding number of motor is decelerated to desired winding number, and obtains the mechanism of larger torque.Current in the mechanism of transferring power and motion, the application area of speed reducer is quite extensive, almost can see its trace in the transmission system of various machinery.Therefore, ensure that the smooth running of speed reducer and working life are very necessary, dust-proof grease proofing be exactly wherein one.Commonly thisly can mainly adopt the structure of a labyrinth disc and an oil sealing by dust-proof sealing configuration that again can be grease proofing at present, the oil sealing be wherein arranged near lubricant oil side is common single lip seal, and sealing lip is with spring, and Main Function is grease proofing; Be arranged on that end cap is outside and the labyrinth disc rotated together with the axis is used for dust-proof, between end cap and labyrinth disc, be full of lubricating grease.There are some problems in the seal arrangement of this structure: works as long time running, oil sealing can cause distortion aging due to frictional heat, oil sealing lip sealing effect is poor, the lost of life, axle head oil impregnate, leakage of oil situation often occur, after long running, oil mass reduces, oil level declines, insufficient lubrication, and bearing and gear wear and tear, and have a strong impact on normal operation and the working life of speed reducer.
Summary of the invention
Technical problem to be solved by this invention is, for the shortcoming of above prior art, proposes a kind of sealing mechanism for speed reducer rotating shaft, can avoid the problem that traditional oil sealing is easy to wear, can greatly reduce equipment operation fault rate, improves service life of equipment.
In order to solve the problems of the technologies described above, the invention provides a kind of speed reducer sealing mechanism, comprise reduction box input shaft bearing and be arranged on the power input shaft on described input shaft bearing, input shaft inside described input shaft bearing is provided with main flinger ring, the input shaft of described input shaft and input shaft bearing contacting point is also provided with first gear oil ring, the input shaft bearing of described first gear oil ring outer ring is provided with the first gear oil groove corresponding with first gear oil ring, and the degree of depth of described first gear oil groove is greater than described first gear oil ring height 0.5-1mm; The input shaft bearing of the outside side of described first gear oil groove is provided with recovery oil groove, and described recovery oil groove is connected with the return opening in casing by the road.
The technological scheme that the present invention limits further is: aforesaid speed reducer sealing mechanism, second gear oil groove is also provided with between described first gear oil groove and recovery oil groove, and in described second gear oil groove, being provided with the second gear oil ring be connected with described power input shaft, the external diameter of described second gear oil ring is identical with described first gear oil ring external diameter.
Aforesaid speed reducer sealing mechanism, the degree of depth of described second gear oil groove is 3-5 times of the described first gear oil groove degree of depth.
Further, aforesaid speed reducer sealing mechanism, described main flinger ring and the close side of input shaft bearing are provided with domatic, and main flinger ring opposite side is plane.
The advantage that the present invention has is: the present invention has compact structure, reliable performance, increases the service life, dust-proof grease proofing advantage, main flinger ring is installed on the axle in end cap by drive fit, main flinger ring is coaxially fixed with first gear oil ring and second gear oil ring, the internal face of input shaft bearing is designed with and gets rid of oily first gear oil groove and second gear oil, be shaped with the recovery oil groove identical with in casing at the inwall of bearing simultaneously, effectively prevent the leakage of internal lubrication oil, serve the object of oil sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is A of the present invention some partial schematic diagram.
Embodiment
The present invention is described in further detail below:
embodiment 1
A kind of speed reducer sealing mechanism that the present embodiment provides, structure as depicted in figs. 1 and 2, the power input shaft 2 comprising reduction box input shaft bearing 1 and be arranged on input shaft bearing, input shaft inside input shaft bearing 1 is provided with main flinger ring 3, the input shaft of input shaft and input shaft bearing contacting point is also provided with first gear oil ring 4, main flinger ring and the close side of input shaft bearing are provided with domatic, and main flinger ring opposite side is plane, is convenient to lubricant oil and is thrown out of; The input shaft bearing of first gear oil ring outer ring is provided with the first gear oil groove 5 corresponding with first gear oil ring, and the degree of depth of first gear oil groove is greater than first gear oil ring height 0.5mm; The input shaft bearing of the outside side of first gear oil groove is provided with and reclaims oil groove 6, reclaims oil groove 6 and is connected with the return opening in casing by the road; Second gear oil groove 7 is provided with between first gear oil groove and recovery oil groove, the degree of depth of second gear oil groove is 5 times of the first gear oil groove degree of depth, and in second gear oil groove, being provided with the second gear oil ring 8 be connected with power input shaft, the external diameter of second gear oil ring 8 is identical with first gear oil ring external diameter.
Accompanying drawing 1 is speed reducer power intake, in order to stop the leakage of oil of input shaft port, so oil is thrown away by main flinger ring, small part is entered to the oil of labyrinth lid, because the space of the notch of first gear oil groove is little, so make the pressure of oil raise, the volume that oil is flow to is few, and then makes the reduction of its pressure, flows decrease by the second gear oil groove of large notch below.And then flow in casing by the return opening of lid bottom, labyrinth, thus stoping its leakage of oil, the scheme of the present embodiment is applicable equally for high-revolving rotor.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technological scheme basis is done, all falls within scope.
Claims (4)
1. speed reducer sealing mechanism, comprise reduction box input shaft bearing and be arranged on the power input shaft on described input shaft bearing, it is characterized in that: the input shaft inside described input shaft bearing is provided with main flinger ring, the input shaft of described input shaft and input shaft bearing contacting point is also provided with first gear oil ring, the input shaft bearing of described first gear oil ring outer ring is provided with the first gear oil groove corresponding with first gear oil ring, and the degree of depth of described first gear oil groove is greater than described first gear oil ring height 0.5-1mm; The input shaft bearing of the outside side of described first gear oil groove is provided with recovery oil groove, and described recovery oil groove is connected with the return opening in casing by the road.
2. speed reducer sealing mechanism according to claim 1, it is characterized in that: between described first gear oil groove and recovery oil groove, be also provided with second gear oil groove, and in described second gear oil groove, being provided with the second gear oil ring be connected with described power input shaft, the external diameter of described second gear oil ring is identical with described first gear oil ring external diameter.
3. speed reducer sealing mechanism according to claim 2, is characterized in that: the degree of depth of described second gear oil groove is 3-5 times of the described first gear oil groove degree of depth.
4. speed reducer sealing mechanism according to claim 1, is characterized in that: described main flinger ring and the close side of input shaft bearing are provided with domatic, and main flinger ring opposite side is plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510458592.6A CN105090457A (en) | 2015-07-30 | 2015-07-30 | Sealing mechanism for reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510458592.6A CN105090457A (en) | 2015-07-30 | 2015-07-30 | Sealing mechanism for reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090457A true CN105090457A (en) | 2015-11-25 |
Family
ID=54571511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510458592.6A Pending CN105090457A (en) | 2015-07-30 | 2015-07-30 | Sealing mechanism for reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420530A (en) * | 2017-09-27 | 2017-12-01 | 南京创力传动机械有限公司 | High power gearbox and severe duty drive |
| CN108223812A (en) * | 2016-12-22 | 2018-06-29 | 湖南中大创远数控装备有限公司 | Rotation axis seal structure |
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| CN201173293Y (en) * | 2008-01-29 | 2008-12-31 | 江苏锡安达防爆股份有限公司 | Shell cover type slide bearing sealing structure |
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| CN202326362U (en) * | 2011-11-19 | 2012-07-11 | 宋炜赓 | Oil leakage proof device for air feeder bearing housing |
| CN202469006U (en) * | 2012-02-28 | 2012-10-03 | 南京创力传动机械有限公司 | Simple shaft sealing device |
| CN202468932U (en) * | 2012-02-23 | 2012-10-03 | 南京创力传动机械有限公司 | Sealing labyrinth for high-speed gearbox |
| CN203594768U (en) * | 2013-12-19 | 2014-05-14 | 天津市祥威传动设备有限公司 | Nested labyrinth sealing mechanism for high-speed gear case |
| JP2014126061A (en) * | 2012-12-25 | 2014-07-07 | Ebara Corp | Lubricant outflow suppressing device, rotary machine, and method for suppressing outflow of lubricant |
| CN204458482U (en) * | 2015-02-04 | 2015-07-08 | 宁夏银仪电力设备检修安装有限公司 | New blower bearing support labyrinth gland |
| CN204985646U (en) * | 2015-07-30 | 2016-01-20 | 南京创贝高速传动机械有限公司 | Reducing gear box sealing mechanism |
-
2015
- 2015-07-30 CN CN201510458592.6A patent/CN105090457A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2338537Y (en) * | 1998-08-25 | 1999-09-15 | 郑书先 | Dust-proof bearing base |
| CN2336214Y (en) * | 1998-09-10 | 1999-09-01 | 张文虎 | Coal thrower with separate sealed bearing seat |
| CN2471411Y (en) * | 2001-02-22 | 2002-01-16 | 戴宏亮 | Mechanical sealer for ball mill bush |
| CN200982412Y (en) * | 2006-12-04 | 2007-11-28 | 中国南车集团株洲电力机车有限公司 | Rolling stock spiral ring labyrinth type axle box seal structure |
| CN201173293Y (en) * | 2008-01-29 | 2008-12-31 | 江苏锡安达防爆股份有限公司 | Shell cover type slide bearing sealing structure |
| CN101251193A (en) * | 2008-04-01 | 2008-08-27 | 无锡金露通用机械有限公司 | Labyrinth type oil seal structure with holes for high speed axis |
| CN201543511U (en) * | 2009-10-12 | 2010-08-11 | 江苏牡丹离心机制造有限公司 | Seal device of drive mechanism in horizontal centrifuge |
| CN201599230U (en) * | 2009-12-14 | 2010-10-06 | 上海邦浦实业集团有限公司 | Novel bearing gland with sealing function |
| CN201739507U (en) * | 2010-07-12 | 2011-02-09 | 上海三一精机有限公司 | High-speed spiral seal structure |
| CN201858358U (en) * | 2010-09-02 | 2011-06-08 | 江西铜业股份有限公司 | Oil leakage preventing device at shaft end of speed reducer |
| CN102400941A (en) * | 2010-09-14 | 2012-04-04 | 南通大通宝富风机有限公司 | Sealed bearing box |
| CN202178649U (en) * | 2011-08-13 | 2012-03-28 | 无锡杰尔压缩机有限公司 | Oil seal structure for high-speed motor |
| CN202326362U (en) * | 2011-11-19 | 2012-07-11 | 宋炜赓 | Oil leakage proof device for air feeder bearing housing |
| CN202468932U (en) * | 2012-02-23 | 2012-10-03 | 南京创力传动机械有限公司 | Sealing labyrinth for high-speed gearbox |
| CN202469006U (en) * | 2012-02-28 | 2012-10-03 | 南京创力传动机械有限公司 | Simple shaft sealing device |
| JP2014126061A (en) * | 2012-12-25 | 2014-07-07 | Ebara Corp | Lubricant outflow suppressing device, rotary machine, and method for suppressing outflow of lubricant |
| CN203594768U (en) * | 2013-12-19 | 2014-05-14 | 天津市祥威传动设备有限公司 | Nested labyrinth sealing mechanism for high-speed gear case |
| CN204458482U (en) * | 2015-02-04 | 2015-07-08 | 宁夏银仪电力设备检修安装有限公司 | New blower bearing support labyrinth gland |
| CN204985646U (en) * | 2015-07-30 | 2016-01-20 | 南京创贝高速传动机械有限公司 | Reducing gear box sealing mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223812A (en) * | 2016-12-22 | 2018-06-29 | 湖南中大创远数控装备有限公司 | Rotation axis seal structure |
| CN107420530A (en) * | 2017-09-27 | 2017-12-01 | 南京创力传动机械有限公司 | High power gearbox and severe duty drive |
| CN107420530B (en) * | 2017-09-27 | 2023-11-07 | 南京创力传动机械有限公司 | High-power gearbox and high-power transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |