CN108036044B - Box labyrinth seal leak protection oil device - Google Patents
Box labyrinth seal leak protection oil device Download PDFInfo
- Publication number
- CN108036044B CN108036044B CN201810011164.2A CN201810011164A CN108036044B CN 108036044 B CN108036044 B CN 108036044B CN 201810011164 A CN201810011164 A CN 201810011164A CN 108036044 B CN108036044 B CN 108036044B
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- China
- Prior art keywords
- ring
- hook
- fixed
- shaped
- oil return
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 abstract description 82
- 239000010687 lubricating oil Substances 0.000 abstract description 16
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 239000012466 permeate Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a labyrinth seal oil leakage prevention device for a box body, which comprises a box body shell, wherein bearings and shaft sleeves are arranged on two opposite side walls of the box body shell, a rotating shaft is arranged between each bearing and each shaft sleeve, a first oil retainer ring, a first groove shaft, a first felt sealing ring and an end cover O-shaped sealing ring are sequentially sleeved and fixed on the rotating shaft at the end side of each bearing from inside to outside, the end face of each first oil retainer ring is in compression connection with the end side of each bearing, a first hook-shaped oil return end cover is fixedly sleeved and pressed on the outer surface of the side wall of each first felt sealing ring, each first hook-shaped oil return end cover is fixed on the end side of the box body shell, and each end cover O-shaped sealing ring is arranged on the end face of each first hook-shaped oil return end cover. The invention is provided with the oil retainer, the groove shaft, the felt sealing ring, the end cover O-shaped sealing ring and the hook-shaped oil return end cover which are sequentially arranged on the rotating shaft, and the high-efficiency sealing of lubricating oil is realized through the heavy blocking effect, so that the lubricating oil can not permeate and flow out, can only flow out downwards along the groove shaft, and is discharged through the oil outlet channel, and the guiding sealing performance is good.
Description
Technical Field
The invention belongs to a labyrinth seal oil leakage prevention device for a box body.
Background
In the use of the rotating shaft, the rotating shaft is fixed in the box body through the bearing or the shaft sleeve, and meanwhile, in order to enlarge the application range of the rotating shaft, the rotating shaft is often matched with the gear set to be used, so that the motion of different functions in different directions is realized, in order to enable the rotating to be smooth in the matched use process of the rotating shaft, the bearing, the shaft sleeve and the gear set, and meanwhile, in order to prolong the service life of the rotating shaft, lubricating oil is often required to be added in the bearing and the gear set, the rotating is convenient, but the lubricating oil is thrown out and splashed in the high-speed rotating process of the rotating shaft, so that the pollution of the working environment is caused.
The traditional sealed leak protection oil device is the felt type seal, directly fixes the felt sealing washer at the lateral wall internal surface of hook-shaped oil return end cover, blocks through the felt sealing washer to the lubricating oil that throws away, but when the lubricating oil that throws away is more or the felt sealing washer live time is longer, and lubricating oil can permeate the felt sealing washer and then throw away, causes operational environment's pollution.
Disclosure of Invention
The invention aims to provide a labyrinth seal oil leakage prevention device for a box body, which is provided with an oil retainer ring, a groove shaft, a felt sealing ring, an end cover O-shaped sealing ring and a hook-shaped oil return end cover which are matched, and meanwhile, the hook-shaped oil return end cover and the oil retainer ring form a labyrinth structure, so that the lubricating oil is blocked by weight and then flows downwards along the groove shaft when being thrown out, the lubricating oil is not leaked due to the multiple blocking effect, and meanwhile, the lubricating oil directly flows to an oil outlet channel along the vertical guide of the groove shaft and is discharged, so that the sealing of the lubricating oil in the box body can be effectively realized, and the sealing performance is good.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a box labyrinth seal leak protection oil device, including the box shell, the through-hole has been opened to the both sides wall that the box shell is relative, install bearing and axle sleeve in the through-hole respectively, install between bearing and the axle sleeve and be fixed with the pivot, the pivot is located the bearing end side and is overlapped in proper order from inside to outside and establishes in proper order and be fixed with first oil retainer, first trench shaft, first felt sealing washer and end cover O shape sealing washer, the terminal surface of first oil retainer is pressed with the bearing end side and is met, first felt sealing washer lateral wall surface compresses tightly the cover and is fixed with first hook-shaped oil return end cover, first hook-shaped oil return end cover passes through the fix with screw in the terminal surface of first hook-shaped oil return end cover;
the rotary shaft is positioned at the end side of the shaft sleeve and is sequentially sleeved with a second oil retainer, a second groove shaft and a second felt sealing ring from inside to outside, the outer surfaces of the side walls of the second groove shaft and the second felt sealing ring are sleeved with a second hook-shaped oil return end cover, and the second hook-shaped oil return end cover is fixed on the end face of the box body shell.
Further, the first hook-shaped oil return end cover comprises a first fixed ring, the end face of the first fixed ring is fixed with a compression ring, the end cover O-shaped sealing ring is fixed on the end face of the first fixed ring through a screw, and meanwhile the end face of the end cover O-shaped sealing ring is in compression connection with the end face of the first felt sealing ring; the outer surface of the side wall of the compression ring is in compression connection with the hole wall of the through hole in the box body shell, the end side of the compression ring is in compression connection with the end side of the bearing, and a first hook ring is fixed at the position of the end face of the first fixing ring, which is positioned at the inner ring; the first oil retainer comprises a first collar sleeved on the outer surface of the side wall of the rotating shaft, two end faces of the first collar are respectively in compression connection with the end face of the first groove shaft and the end face of the bearing, a C-shaped hook ring is fixed on the outer surface of the side wall of the first collar, one end side of the C-shaped hook ring is connected with the end face of the first groove shaft, and the first hook ring is located in the C-shaped hook ring.
Further, a first clamping groove is formed in the inner surface of the side wall at one end of the first fixing ring, and the first felt sealing ring is clamped in the first clamping groove.
Further, the first hook ring and the pressing ring are located on the same end face of the first fixing ring, and meanwhile the first hook ring is bent towards the direction of the pressing ring.
Further, a second clamping groove is formed in the section of the inner surface of the side wall of the shaft sleeve, the second oil retainer ring comprises a second lantern ring and a second hook ring fixed on the end side of the outer surface of the side wall of the second lantern ring, the second hook ring is bent towards the direction of the rotating shaft, and the second lantern ring is fixed in the second clamping groove; the second hook-shaped oil return end cover comprises an oil return ring and a second fixing ring fixed on the outer surface of the side wall of the oil return ring, the second fixing ring is fixed on the end face of the shell of the box body through screws, two grooves are formed in the inner surface of the side wall of the oil return ring, a second groove shaft and a second felt sealing ring are respectively fixed in the two grooves, the outer surface of the side wall of the oil return ring is tightly pressed and connected with the wall of a through hole in the end face of the shaft sleeve of the box body, a C-shaped oil return through hole is formed in the end face of the oil return ring, and the second hook ring is located in the C-shaped oil return through hole.
The invention has the beneficial effects that:
the oil retainer and the hook-shaped oil return end cover are arranged, a labyrinth structure is formed by the structural cooperation of the oil retainer and the hook-shaped oil return end cover, so that the lubricating oil is prevented from flowing in a guiding manner, the lubricating oil is effectively prevented from being thrown out to the periphery, the positioning guiding flowing effect is strong, and the efficient sealing effect is further realized.
The invention is provided with the oil retainer, the groove shaft, the felt sealing ring, the end cover O-shaped sealing ring and the hook-shaped oil return end cover which are sequentially arranged on the rotating shaft, and the efficient sealing of lubricating oil is realized through the heavy blocking effect, so that the lubricating oil can not permeate and flow out, can only flow out downwards along the groove shaft, and then is discharged through the oil outlet channel, the guiding sealing performance is good, and the lubricating oil can not permeate and be thrown out.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of a labyrinth seal oil leakage prevention device for a tank body;
FIG. 2 is an enlarged view of a part of the structure of FIG. 1;
FIG. 3 is an enlarged view of a part of the structure of FIG. 1;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 1;
fig. 5 is an enlarged view of a partial structure of fig. 1.
Detailed Description
The utility model provides a box labyrinth seal leak protection oil device, as shown in fig. 1, including box shell 1, the through-hole is opened to the both sides wall that box shell 1 is relative, install bearing 101 and axle sleeve 102 in the through-hole respectively, install between bearing 101 and the axle sleeve 102 and be fixed with pivot 2, pivot 2 is located bearing 101 end side and is overlapped in proper order from inside to outside and be fixed with first oil retainer 3, first trench shaft 4, first felt sealing washer 6 and end cover O shape sealing washer 7, the terminal surface of first felt sealing washer 3 is tightly connected with bearing 101 end side pressure, first felt sealing washer 6 lateral wall surface compresses tightly the cover and is fixed with first hook-shaped oil return end cover 5, first hook-shaped oil return end cover 5 passes through the screw to be fixed in the end side of box shell 1, end cover O shape sealing washer 7 passes through the screw to be fixed in the terminal surface of first hook-shaped oil return end cover 5;
as shown in fig. 2 and fig. 3, the first hook-shaped oil return end cover 5 includes a first fixing ring 501, a pressing ring 502 is fixed on an end surface of the first fixing ring 501, a first clamping groove is formed in an inner surface of a side wall at one end of the first fixing ring 501, a first felt sealing ring 6 is clamped in the first clamping groove, an end cover O-shaped sealing ring 7 is fixed on the end surface of the first fixing ring 501 through a screw and is respectively located at two sides of the first fixing ring 501 with the pressing ring 502, and meanwhile, the end surface of the end cover O-shaped sealing ring 7 is in pressing connection with the end surface of the first felt sealing ring 6; the outer surface of the side wall of the compression ring 502 is in compression connection with the hole wall of the through hole in the box body shell 1, the end side of the compression ring 502 is in compression connection with the end side of the bearing 101, a first hook ring 503 is fixed at the inner ring position on the end surface of the first fixing ring 501, the first hook ring 503 and the compression ring 502 are positioned on the same end surface of the first fixing ring 501, and meanwhile, the first hook ring 503 is bent towards the direction of the compression ring 502;
the first oil retainer 3 comprises a first collar 301 sleeved on the outer surface of the side wall of the rotating shaft 2, two end surfaces of the first collar 301 are respectively in compression connection with the end surface of the first groove shaft 4 and the end surface of the bearing 101, a C-shaped hook ring 302 is fixed on the outer surface of the side wall of the first collar 301, one end side of the C-shaped hook ring 302 is connected with the end surface of the first groove shaft 4, the first hook ring 503 is positioned in the C-shaped hook ring 302, a first oil outlet channel 103 is formed in a through hole of the box shell 1, which is positioned at the end side of the bearing 101, and the first oil outlet channel 103 is positioned right below the C-shaped hook ring 302; in the rotating process of the rotating shaft 2, oil in the bearing 101 enters the upper part of the first hook ring 503 through the blocking of the C-shaped hook ring 302 and the pressing ring 502 after being thrown out, then flows into the C-shaped hook ring 302, and as one end side of the C-shaped hook ring 302 is connected with the end face of the first groove shaft 4, the oil downwards reaches the bottom end of the first groove shaft 4 along the first groove shaft 4 and then flows to the upper part of the bottom end of the first hook ring 503, and flows to the first oil outlet channel 103 through the C-shaped hook ring 302 under the blocking action of the first hook ring 503, then is discharged from the lard channel 103, further pollution is effectively avoided, and meanwhile, if the discharged oil quantity is too large, part of the oil enters the upper part of the first hook ring 503 through the C-shaped hook ring 302, and enters a gap between the inner surface of the side wall of the first fixing ring 501 and the rotating shaft 2, and is blocked through the first seal ring 6 and the O-shaped seal ring 7, so that the oil cannot flow back to the upper part of the first hook ring which is blocked by the first hook ring 503 and then flows downwards along the first hook ring 503;
as shown in fig. 4 and fig. 5, the end side of the shaft sleeve 102 of the rotating shaft 2 is sleeved with and fixed with a second oil retainer 8, a second groove shaft 10 and a second felt sealing ring 11 in sequence from inside to outside, the outer surfaces of the side walls of the second groove shaft 10 and the second felt sealing ring 11 are sleeved and fixed with a second hook-shaped oil return end cover 9, and the second hook-shaped oil return end cover 9 is fixed on the end surface of the box body shell 1;
a second clamping groove is formed in the section of the inner surface of the side wall of the shaft sleeve 102, the second oil retainer ring 8 comprises a second collar 801 and a second hook ring 802 fixed on the end side of the outer surface of the side wall of the second collar 801, the second hook ring 802 is bent towards the direction of the rotating shaft 2, and the second collar 801 is fixed in the second clamping groove;
the second hook-shaped oil return end cover 9 comprises an oil return ring 901 and a second fixing ring 902 fixed on the outer surface of the side wall of the oil return ring 901, the second fixing ring 902 is fixed on the end face of the box body shell 1 through screws, two grooves are formed in the inner surface of the side wall of the oil return ring 901, a second groove shaft 10 and a second felt sealing ring 11 are respectively fixed in the two grooves, the outer surface of the side wall of the oil return ring 901 is tightly pressed and connected with the wall of a through hole of the box body shell 1, which is positioned at the end side of the shaft sleeve 102, a C-shaped oil return through hole 903 is formed in the end face of the oil return ring 901, the second hook ring 802 is positioned in the C-shaped oil return through hole 903, and a second oil outlet channel 104 is formed in the through hole of the box body shell 1, which is positioned at the end side of the shaft sleeve 102; during the rotation of the rotating shaft 2, the thrown oil directly enters between the C-shaped oil return through hole 903 and the second hook ring 802 due to the blocking effect of the oil return ring 901, then flows out along the gap between the oil return ring 901 and the rotating shaft 2, flows out downwards along the second groove shaft 10 after being blocked by the second groove shaft 10, and the oil which does not flow out flows out downwards along the second groove shaft 10 after being blocked by the blocking effect of the second felt sealing ring 11, and flows out downwards along the second groove shaft 10 after being blocked by the second hook ring 802, flows into the C-shaped oil return through hole 903 and then flows out along the second oil outlet channel 104.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (1)
1. The utility model provides a box labyrinth seal leak protection oil device, including box shell (1), the through-hole has been opened to the both sides wall that box shell (1) is relative, install bearing (101) and axle sleeve (102) in the through-hole respectively, install between bearing (101) and axle sleeve (102) and be fixed with pivot (2), characterized in that, pivot (2) are located bearing (101) end side and overlap in proper order from inside to outside and are fixed with first oil retainer (3), first trench shaft (4), first felt sealing washer (6) and end cover O shape sealing washer (7), the terminal surface of first oil retainer (3) is closely with bearing (101) end side pressure, first felt sealing washer (6) lateral wall surface compresses tightly the cover and is fixed with first hook-shaped oil return end cover (5), first hook-shaped oil return end cover (5) are fixed in the end side of box shell (1) through the screw, end cover O shape sealing washer (7) are fixed in the terminal surface of first hook-shaped oil return (5) through the screw;
the rotating shaft (2) is positioned at the end side of the shaft sleeve (102), a second oil retainer (8), a second groove shaft (10) and a second felt sealing ring (11) are sleeved and fixed in sequence from inside to outside, a second hook-shaped oil return end cover (9) is sleeved and fixed on the outer surfaces of the side walls of the second groove shaft (10) and the second felt sealing ring (11), and the second hook-shaped oil return end cover (9) is fixed on the end surface of the box body shell (1);
the first hook-shaped oil return end cover (5) comprises a first fixed ring (501), a compression ring (502) is fixed on the end face of the first fixed ring (501), an end cover O-shaped sealing ring (7) is fixed on the end face of the first fixed ring (501) through a screw, and meanwhile the end face of the end cover O-shaped sealing ring (7) is in compression connection with the end face of the first felt sealing ring (6); the outer surface of the side wall of the compression ring (502) is in compression connection with the hole wall of the through hole in the box body shell (1), the end side of the compression ring (502) is in compression connection with the end side of the bearing (101), and the end surface of the first fixing ring (501) is fixed with a first hook ring (503) at the inner ring; the first oil retainer ring (3) comprises a first sleeve ring (301) sleeved on the outer surface of the side wall of the rotating shaft (2), two end faces of the first sleeve ring (301) are respectively in compression connection with the end face of the first groove shaft (4) and the end face of the bearing (101), a C-shaped hook ring (302) is fixed on the outer surface of the side wall of the first sleeve ring (301), one end side of the C-shaped hook ring (302) is connected with the end face of the first groove shaft (4), and the first hook ring (503) is located in the C-shaped hook ring (302);
the inner surface of the side wall at one end of the first fixing ring (501) is provided with a first clamping groove, and a first felt sealing ring (6) is clamped in the first clamping groove;
the first hook ring (503) and the pressing ring (502) are positioned on the same end face of the first fixing ring (501), and meanwhile the first hook ring (503) is bent towards the direction of the pressing ring (502);
the oil return device is characterized in that a second clamping groove is formed in the section of the inner surface of the side wall of the shaft sleeve (102), the second oil retainer ring (8) comprises a second sleeve ring (801) and a second hook ring (802) fixed on the end side of the outer surface of the side wall of the second sleeve ring (801), the second hook ring (802) is bent towards the direction of the rotating shaft (2), the second sleeve ring (801) is fixed in the second clamping groove, the second hook-shaped oil return end cover (9) comprises an oil return ring (901) and a second fixing ring (902) fixed on the outer surface of the side wall of the oil return ring (901), the second fixing ring (902) is fixed on the end surface of the box body shell (1) through screws, two grooves are formed in the inner surface of the side wall of the oil return ring (901), the second groove shaft (10) and the second felt sealing ring (11) are respectively fixed in the two grooves, the outer surface of the side wall of the oil return ring (901) is tightly connected with a through hole wall 903 at the end side of the shaft sleeve (102), a C-shaped oil return through hole (903) is formed in the end surface of the oil return ring (901), and the second hook ring (802) is located in the C-shaped through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011164.2A CN108036044B (en) | 2018-01-05 | 2018-01-05 | Box labyrinth seal leak protection oil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011164.2A CN108036044B (en) | 2018-01-05 | 2018-01-05 | Box labyrinth seal leak protection oil device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108036044A CN108036044A (en) | 2018-05-15 |
| CN108036044B true CN108036044B (en) | 2024-03-19 |
Family
ID=62099084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810011164.2A Active CN108036044B (en) | 2018-01-05 | 2018-01-05 | Box labyrinth seal leak protection oil device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036044B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210176A (en) * | 2018-09-24 | 2019-01-15 | 江苏悦达专用车有限公司 | A kind of connection structure of transmission case body and transmission shaft |
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| CN202901297U (en) * | 2012-09-13 | 2013-04-24 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-speed gear box sealing device and high-speed gear box applying the same |
| DE102013208290A1 (en) * | 2013-05-06 | 2014-11-06 | Zf Friedrichshafen Ag | gearbox |
| CN203962702U (en) * | 2014-07-25 | 2014-11-26 | 恒天重工股份有限公司 | A kind of rotation axis body sealing configuration |
| CN205278312U (en) * | 2015-12-28 | 2016-06-01 | 杭州杰牌传动科技有限公司 | Reducer shaft end movive seal protection architecture |
| CN107237827A (en) * | 2016-03-28 | 2017-10-10 | 沈阳海默数控机床有限公司 | A kind of sealing structure of machine tool chief axis |
| CN206617584U (en) * | 2017-03-17 | 2017-11-07 | 湖北晨风轨道装备股份有限公司 | A kind of sealing device of mortar vehicle agitating shaft shaft end |
| CN207715709U (en) * | 2018-01-05 | 2018-08-10 | 合肥神马科技集团有限公司 | A kind of babinet labyrinth seal anti-oil leakage device |
-
2018
- 2018-01-05 CN CN201810011164.2A patent/CN108036044B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202901297U (en) * | 2012-09-13 | 2013-04-24 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-speed gear box sealing device and high-speed gear box applying the same |
| DE102013208290A1 (en) * | 2013-05-06 | 2014-11-06 | Zf Friedrichshafen Ag | gearbox |
| CN203962702U (en) * | 2014-07-25 | 2014-11-26 | 恒天重工股份有限公司 | A kind of rotation axis body sealing configuration |
| CN205278312U (en) * | 2015-12-28 | 2016-06-01 | 杭州杰牌传动科技有限公司 | Reducer shaft end movive seal protection architecture |
| CN107237827A (en) * | 2016-03-28 | 2017-10-10 | 沈阳海默数控机床有限公司 | A kind of sealing structure of machine tool chief axis |
| CN206617584U (en) * | 2017-03-17 | 2017-11-07 | 湖北晨风轨道装备股份有限公司 | A kind of sealing device of mortar vehicle agitating shaft shaft end |
| CN207715709U (en) * | 2018-01-05 | 2018-08-10 | 合肥神马科技集团有限公司 | A kind of babinet labyrinth seal anti-oil leakage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108036044A (en) | 2018-05-15 |
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