CN106438952A - Non-contact type sealing structure for speed reducer - Google Patents
Non-contact type sealing structure for speed reducer Download PDFInfo
- Publication number
- CN106438952A CN106438952A CN201610849776.XA CN201610849776A CN106438952A CN 106438952 A CN106438952 A CN 106438952A CN 201610849776 A CN201610849776 A CN 201610849776A CN 106438952 A CN106438952 A CN 106438952A
- Authority
- CN
- China
- Prior art keywords
- oil
- transparent cover
- oil return
- sealing structure
- rotary shaft
- 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.)
- Granted
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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
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
Abstract
The invention provides a non-contact type sealing structure for a speed reducer and belongs to the technical field of sealing of the speed reducer. The non-contact type sealing structure for the speed reducer comprises an oil returning transparent cover, an oil slinger and a box body; a bearing sleeves a rotary shaft arranged at an opening of the box body, and a separation spring and the oil returning transparent cover sleeve the rotary shaft in sequence along a direction from an inner part to an outer part of the box body; the oil slinger is arranged in the oil returning transparent cover; the oil slinger also sleeves the rotary shaft; a gap of 0.5mm is formed between an inner wall of the oil returning transparent cover and an outer ring of the oil slinger, so that the whole oil returning transparent cover can be axially assembled on the opening of the box body; the non-contact type sealing structure is convenient to machine, a problem that splitting machining and assembling work are complicated is solved and leakage can also be effectively reduced; the oil returning transparent cover is provided with an oil returning groove and an oil collection groove, and the oil returning groove and the oil collection groove are connected with an oil returning hole in the box body, so that overflowed lubricating oil can be rapidly collected and recycled back to the box body; and the oil returning transparent cover can be smaller than the size of a splitting design and is convenient and applicable.
Description
Technical field
The present invention relates to the technical field of reductor sealing, it is specifically related to a kind of reductor non-contacting sealing structure.
Background technology
With machine for people's idea in-depth, the usage frequency more and more higher of machinery equipment in all trades and professions, reductor make
For the critical piece of plant equipment, its state of development has become as emphasis of concern.
At present although the usage frequency of reductor is high, but the deficiency due to the conventional mechanical seal structure of reductor, lead to
Existing reductor there is problems：1st, processing request is high, and processing technology is complicated；2nd, parts volume is big, leads to slow down
Taking up room of machine is big；3rd, sealing is poor, and oil return process is slow, easily causes lubricating oil and piles up and reveal.
Content of the invention
For the above-mentioned problems in the prior art, now aim to provide a kind of reductor non-contacting sealing structure, with
Disc and the combination of oil return transparent cover, and by arranging spill port on seal case, realize quick oil return, reduce and reveal, and will
Between oil return transparent cover inner ring and the outer shroud of disc arrange gap, facilitate integral assembling it is ensured that oil return transparent cover processing entirety
Property, make processing and assembling simpler, and oil-returning structure is arranged in oil return transparent cover, volume can be effectively reduced, save
Space.
Concrete technical scheme is as follows：
A kind of reductor non-contacting sealing structure, has the feature that, including：Oil return transparent cover, disc and casing, case
Projecting on body have the direction along rotary shaft in rotary shaft, and casing to offer spill port, and oil return transparent cover is sheathed on rotary shaft
On, oil return transparent cover offers oil-recovery tank and oil trap, and oil trap and oil-recovery tank are all connected with spill port, disc is sheathed on
In rotary shaft, and disc is built in oil trap and arranges gap and oil return transparent cover inwall between.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, oil return transparent cover is provided with seam, seam and casing
Opening cooperation, and seam is sheathed in opening.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, in the opening of casing, rotary shaft is also arranged with
Bearing.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, is provided with spacer ring between bearing and oil return transparent cover,
And spacer ring is sheathed in rotary shaft.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, oil return transparent cover offers some installing holes, casing
On offer the fixing hole matching with installing hole.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, between the inwall of oil return transparent cover and disc between
Gap is 0.5mm.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, oil-recovery tank is symmetricly set in oil return transparent cover.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, oil return transparent cover is fixed on case by threaded fastener
On body.
A kind of above-mentioned reductor non-contacting sealing structure, wherein, along the axis direction of rotary shaft, oil-recovery tank with get rid of oil
Ring be located at differing heights plane on.
The good effect of technique scheme is：1st, pass through to arrange multiple oil-recovery tanks and oil trap, can quickly will leak out out
The spill port that the lubricating oil coming is collected by casing returns in casing, reduces leakage；2nd, it is additionally provided with oil return transparent cover
Disc, by the two-layer sealing function of disc and oil return transparent cover, can reduce the leakage of box house liquid to greatest extent；
The 3rd, the gap of 0.5mm is set between oil return transparent cover inwall and the outer shroud of disc, facilitates oil return transparent cover to be integrally axially mounted to
On the opening of casing, and convenient processing, solve the problems, such as parts processing and assembly work is complicated moreover it is possible to effective reduce leakage；
4th, drainback passage is arranged in same oil return transparent cover, effectively reduces volume, reduce encapsulated space.
Above-mentioned reductor non-contacting sealing structure, sheathed bearing in the rotary shaft on the opening of casing, and along from
Box house, to outside direction, is arranged with spacer ring and oil return transparent cover on the rotary shaft successively, and is provided with oil return transparent cover
Disc, and disc is equally sheathed on the rotary shaft, and will 0.5mm be set between oil return transparent cover inwall and the outer shroud of disc
Gap, facilitate oil return transparent cover to be integrally axially mounted on the opening of casing, and convenient process, solve parts processing and assembling
The complicated problem of work is moreover it is possible to effective reduce leakage；Setting oil-recovery tank and oil trap in oil return transparent cover, and by oil-recovery tank and collection
Oil groove is connected with the spill port on casing, is easy to the next lubricating oil of spilling and can quickly collect and be recovered in casing, and can be little
Volume when split designs, convenient applicable.
Brief description
Fig. 1 is a kind of structure chart of the embodiment of reductor non-contacting sealing structure of the present invention；
Fig. 2 is the structure chart of the oil return transparent cover of a preferred embodiment of the present invention；
Fig. 3 is the structure chart of the auxiliary drainback passage of a preferred embodiment of the present invention；
Fig. 4 is the structure chart of the oil-recovery tank of a preferred embodiment of the present invention；
Fig. 5 is the structure chart in the main oil return path of a preferred embodiment of the present invention.
In accompanying drawing：1st, casing；2nd, oil return transparent cover；3rd, disc；4th, rotary shaft；5th, bearing；6th, spacer ring；7th, screw threads for fastening
Part；11st, spill port；21st, installing hole；22nd, cover hole；23rd, oil trap；24th, assist drainback passage；241st, interface channel；25th, oil return
Groove；26th, main oil return path；27th, seam.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, real below
Apply the technical scheme that example combines accompanying drawing 1 and to accompanying drawing 5, the present invention is provided to be specifically addressed, but herein below is not as the present invention's
Limit.
Fig. 1 is a kind of structure chart of the embodiment of reductor non-contacting sealing structure of the present invention；Fig. 2 is the present invention one
The structure chart of the oil return transparent cover of preferred embodiment；Fig. 3 is the structure chart of the auxiliary drainback passage of a preferred embodiment of the present invention；Figure
4 is the structure chart of the oil-recovery tank of a preferred embodiment of the present invention；Fig. 5 is the main oil return path of a preferred embodiment of the present invention
Structure chart.As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the reductor non-contacting sealing structure that the present embodiment provides includes：Case
Body 1, spill port 11, oil return transparent cover 2, disc 3, threaded fastener 7, installing hole 21, set hole 22, oil trap 23, auxiliary oil return
Passage 24, interface channel 241, oil-recovery tank 25, main oil return path 26, seam 27.
Specifically, bearing 5, spacer ring 6, disc 3 and oil return are arranged with the rotary shaft 4 in the opening of casing 1 saturating
Lid 2, along the direction of casing 1 interior, rotary shaft 4 is arranged with bearing 5, spacer ring 6, oil return transparent cover 2 successively, and in oil return
Setting disc 3 in transparent cover 2, as shown in Figure 5.
More specific, casing 1 opening nearby offers some spill ports 11 along the axial direction of rotary shaft 4, is opening back simultaneously
The region of oilhole 11 is further opened with some fixing holes（Do not mark）, oil return transparent cover 2 offers some installing holes 21, and oil return is saturating
The fixing hole on installing hole 21 and casing 1 on lid 2（Do not mark）Cooperation, by threaded fastener 7 by oil return transparent cover 2 and casing
1 is fixed together, and fixing hole（Do not mark）All it is distributed around the axial array of rotary shaft 4 with installing hole 21.
Oil return transparent cover 2 is in that disk is arranged, and centre offers set hole 22 vertically, passes through for rotary shaft 4, and set hole 22 is in
Stair-stepping three sections of settings, along the direction of casing 1 interior, cover hole 22 internal diameter be in, large and small, interior in oil return transparent cover 2
Directly fitted with rotary shaft 4 wall body in one section of little set hole 22 of footpath, a section that in oil return transparent cover 2, internal diameter is big is oil trap 23, oil-collecting
It is provided with disc 3 in groove 23, disc 3 is set in rotary shaft 4, and the outer shroud wall body of disc 3 is big with set hole 22 internal diameter
Inwall between be provided with gap, in internal diameter in oil return transparent cover 2 section is in the rotary shaft 4 radially external annulus with disc 3
It is again provided with gap between body, facilitates oil return transparent cover 2 can be set in rotary shaft 4 directly through disc 3, and pass through screw thread
Securing member 7 is fixed on casing 1.
As preferred embodiment, in set hole 22 internal diameter in oil return transparent cover 2 one section rotary shaft 4 radially with get rid of oil
Gap between the outer shroud wall body of ring 3 is 0.5mm, so that oil return transparent cover 2 is integrally axially sleeved ikn in rotary shaft 4 and casing 1, no
Oil return transparent cover 2 split need to be assembled, make the processing of oil return transparent cover 2 simpler, and gap setting only has 0.5mm, can guarantee that
Leakage is few.
Specifically, the wall body of oil trap 23 of oil return transparent cover 2 offers auxiliary drainback passage 24 along rotary shaft 4 radial direction,
Auxiliary drainback passage 24 is connected with interface channel 241 along rotary shaft 4 axial direction away from one end of oil trap 23, and assists oil return to lead to
Road 24 and interface channel 241 UNICOM, interface channel 241 is connected with the spill port 11 on casing 1, is easy to the lubrication in oil trap 23
Oil can be entered in the spill port 11 on casing 1 through interface channel 241 by assisting drainback passage 24, carries out to the profit leaking out
The recovery of lubricating oil.
The one side that oil return transparent cover 2 contacts casing 1 offers some oil-recovery tanks 25, oil-recovery tank 25 is in that racetrack is arranged,
The setting direction of oil-recovery tank 25 is radially arranged along rotary shaft 4, when oil return transparent cover 2 is arranged on casing 1, the one of oil-recovery tank 25
End is connected on spacer ring 6, collects the lubricating oil leaking out from bearing 5, the oil return on the other end of oil-recovery tank 25 and casing 1
Hole 11 connects it is ensured that the lubricating oil leaking out can more quickly flow back in casing 1, and this loop is main oil return line
Footpath 26, the lubricating oil of leakage is mainly reclaimed by this loop.
As preferred embodiment, the oil-recovery tank 25 in oil return transparent cover 2 is typically provided with symmetrical two it is ensured that oil return
Quick oil return is also enabled while transparent cover 2 rigidity.
As preferred embodiment, in oil return transparent cover 2, the side near casing 1 is provided with seam 27, and seam 27 projects
It is arranged in oil return transparent cover 2, and is fastened in the opening of casing 1, the outer wall of seam 27 is fitted with the inwall of casing 1 opening, rise
To the effect of quick positioning, oil return transparent cover 2 is facilitated can be fast and accurately installed on casing 1.
As preferred embodiment, auxiliary drainback passage 24 is the through hole along rotary shaft 4 radial direction, after hole machined completes
By welding, auxiliary drainback passage 24 is shut near one end of oil return transparent cover 2 outer wall, be so easy to assist drainback passage 24
Processing, reduces the complexity of processing, improves the efficiency of processing.
As preferred embodiment, in oil return transparent cover 2, along along the axis direction of rotary shaft 4, oil-recovery tank 25 and oil trap
Disc 3 in 23 is arranged in the plane of differing heights, by stratified two-layer anti-leak, has been effectively ensured in casing 1
Lubricating oil nearby will not be leaked out by rotary shaft 4.
The reductor non-contacting sealing structure that the present embodiment provides, including：Oil return transparent cover 2, disc 3 and casing 1,
Sheathed bearing 5 in the rotary shaft 4 on the opening of casing 1, and along from the direction of casing 1 interior, in rotary shaft 4 according to
Secondary be arranged with spacer ring 6 and oil return transparent cover 2, and be provided with disc 3 in oil return transparent cover 2, and disc 3 be equally set in rotation
On axle 4, and will the gap of 0.5mm be set between the outer shroud of oil return transparent cover 2 inwall and disc 3, facilitates the overall axle of oil return transparent cover 2
To on the opening being assemblied in casing 1, and convenient process, solve the problems, such as parts processing and assembly work complicated moreover it is possible to effectively
Reduce leakage；Setting oil-recovery tank 25 and oil trap 23 in oil return transparent cover 2, one end of oil-recovery tank 25 is connected on spacer ring 6, oil return
The other end of groove 25 is connected on the spill port 11 on casing 1, for main oil return line footpath 26, the profit that can will overflow from bearing 5
Lubricating oil is flowed in the spill port 11 on casing 1 by oil-recovery tank 25；Oil trap 23 is arranged in oil return transparent cover 2 with oil-recovery tank 25 not
With in elevation plane, and open up auxiliary drainback passage 24 along rotary shaft 4 radial direction on oil trap 23 inwall, and assist drainback passage
24 one end is connected in oil trap 23, the other end and interface channel 241 UNICOM, and is connected to casing 1 by interface channel 241
On spill port 11 in, when the lubricating oil of partial compromise is through disc 3, by the effect of disc 3, the lubricating oil of leakage
Can be entered in auxiliary drainback passage 24 by oil trap 23, and the spill port 11 on casing 1 is entered by interface channel 241
In, the lubricating oil realizing will leak out reclaims again, by arranging twice oil-returning structure, can ensure that lubricating oil does not leak out；
Seam 27 being arranged on oil return transparent cover 2, during convenient installation, being positioned the quick and accuracy it is ensured that being installed；In an oil return
Main oil return path 26 was not only provided with transparent cover 2 but also had been provided with auxiliary drainback passage 24, a part can prevent lubricating oil
Leakage, efficiently solves the problems, such as that volume is excessive.
These are only preferred embodiments of the present invention, not thereby limit embodiments of the present invention and protection domain, right
It should can appreciate that done by all utilization description of the invention and diagramatic content equivalent replaces for those skilled in the art
Scheme obtained by changing and obviously changing, all should be included in protection scope of the present invention.
Claims (9)
1. a kind of reductor non-contacting sealing structure is it is characterised in that include：Oil return transparent cover, disc and casing, described
On casing projecting have offer spill port along the direction of described rotary shaft in rotary shaft, and described casing, described oil return is saturating
Lid is sheathed in described rotary shaft, and described oil return transparent cover offers oil-recovery tank and oil trap, and described oil trap and described time
Oil groove is all connected with described spill port, and described disc is sheathed in described rotary shaft, and described disc is built in described collection
Gap is simultaneously set in oil groove and the inwall of described oil return transparent cover between.
2. a kind of reductor non-contacting sealing structure according to claim 1 is it is characterised in that in described oil return transparent cover
It is provided with seam, described seam is coordinated with the opening of described casing, and described seam is sheathed in described opening.
3. a kind of reductor non-contacting sealing structure according to claim 2 is it is characterised in that institute in described casing
State in opening, described rotary shaft is also arranged with bearing.
4. a kind of reductor non-contacting sealing structure according to claim 3 is it is characterised in that in described bearing and institute
State and be provided with spacer ring between oil return transparent cover, and described spacer ring is sheathed in described rotary shaft.
5. a kind of reductor non-contacting sealing structure according to claim 1 is it is characterised in that in described oil return transparent cover
Offer some installing holes, described casing is offered the fixing hole being matched with described installing hole.
6. a kind of reductor non-contacting sealing structure according to claim 1 is it is characterised in that described oil return transparent cover
Gap between inwall and described disc is 0.5mm.
7. a kind of reductor non-contacting sealing structure according to claim 1 is it is characterised in that described oil-recovery tank is symmetrical
It is arranged in described oil return transparent cover.
8. a kind of reductor non-contacting sealing structure according to claim 1 is it is characterised in that described oil return transparent cover is led to
Cross threaded fastener to be fixed on described casing.
9. a kind of reductor non-contacting sealing structure according to claim 1 is it is characterised in that along described rotary shaft
Axis direction, described oil-recovery tank and described disc be located at differing heights plane on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849776.XA CN106438952B (en) | 2016-09-26 | 2016-09-26 | A kind of speed reducer non-contacting sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849776.XA CN106438952B (en) | 2016-09-26 | 2016-09-26 | A kind of speed reducer non-contacting sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438952A true CN106438952A (en) | 2017-02-22 |
| CN106438952B CN106438952B (en) | 2019-01-22 |
Family
ID=58169368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610849776.XA Active CN106438952B (en) | 2016-09-26 | 2016-09-26 | A kind of speed reducer non-contacting sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438952B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387742A (en) * | 2017-09-22 | 2017-11-24 | 江苏赫夫特齿轮制造有限公司 | Reducer gear tank drainback structure |
| CN109185436A (en) * | 2018-11-13 | 2019-01-11 | 中冶华天南京工程技术有限公司 | A kind of gear-box rotation shaft mechanical and flexible combination sealing structure |
| CN110587361A (en) * | 2019-07-31 | 2019-12-20 | 卓海峰 | Automatic change industrial robot of material from top to bottom |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3330473A1 (en) * | 1982-11-05 | 1984-05-10 | Inventio AG, 6052 Hergiswil, Nidwalden | Non-contact seal |
| CN201351732Y (en) * | 2008-12-02 | 2009-11-25 | 中国重型机械研究院 | Oil sealing device for reduction gearbox bearing |
| CN201575153U (en) * | 2009-11-18 | 2010-09-08 | 荆州市巨鲸传动机械有限公司 | Non-contact sealing device |
| CN103867691A (en) * | 2014-04-15 | 2014-06-18 | 郑州机械研究所 | Shaft-end seal and oil return structure of gear box |
| CN206092901U (en) * | 2016-09-26 | 2017-04-12 | 宁波东力传动设备有限公司 | Speed reducer non -contact seal structure |
-
2016
- 2016-09-26 CN CN201610849776.XA patent/CN106438952B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3330473A1 (en) * | 1982-11-05 | 1984-05-10 | Inventio AG, 6052 Hergiswil, Nidwalden | Non-contact seal |
| CN201351732Y (en) * | 2008-12-02 | 2009-11-25 | 中国重型机械研究院 | Oil sealing device for reduction gearbox bearing |
| CN201575153U (en) * | 2009-11-18 | 2010-09-08 | 荆州市巨鲸传动机械有限公司 | Non-contact sealing device |
| CN103867691A (en) * | 2014-04-15 | 2014-06-18 | 郑州机械研究所 | Shaft-end seal and oil return structure of gear box |
| CN206092901U (en) * | 2016-09-26 | 2017-04-12 | 宁波东力传动设备有限公司 | Speed reducer non -contact seal structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387742A (en) * | 2017-09-22 | 2017-11-24 | 江苏赫夫特齿轮制造有限公司 | Reducer gear tank drainback structure |
| CN109185436A (en) * | 2018-11-13 | 2019-01-11 | 中冶华天南京工程技术有限公司 | A kind of gear-box rotation shaft mechanical and flexible combination sealing structure |
| CN109185436B (en) * | 2018-11-13 | 2024-01-09 | 中冶华天南京工程技术有限公司 | Mechanical and flexible combined sealing structure of gear box rotating shaft |
| CN110587361A (en) * | 2019-07-31 | 2019-12-20 | 卓海峰 | Automatic change industrial robot of material from top to bottom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438952B (en) | 2019-01-22 |
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