CN109139879A - A kind of speed reducer shaft sealing device - Google Patents
A kind of speed reducer shaft sealing device Download PDFInfo
- Publication number
- CN109139879A CN109139879A CN201811155454.0A CN201811155454A CN109139879A CN 109139879 A CN109139879 A CN 109139879A CN 201811155454 A CN201811155454 A CN 201811155454A CN 109139879 A CN109139879 A CN 109139879A
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- CN
- China
- Prior art keywords
- sealing
- shaft
- gland
- magnet
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 104
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 28
- 210000004907 gland Anatomy 0.000 claims abstract description 36
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000006872 improvement Effects 0.000 abstract description 3
- 239000011257 shell material Substances 0.000 description 12
- 239000000565 sealant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation 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
Abstract
The invention discloses a kind of speed reducer shaft sealing devices comprising: shell, shaft, bearing, bearing pressure ring, gland, sealing ring and oil sealing；Shaft is mounted in shell, and shell is stretched out in one end of shaft；Bearing is mounted in shaft；Bearing pressure ring is inserted in shaft, and bearing pressure ring is connected through a screw thread with shell, is used for fixing bearing position；Gland is provided with axis hole, and annular mounting groove is arranged in the periphery of axis hole；Sealing ring is mounted in mounting groove；Internal diameter of the seal ring is greater than bearing pressure ring outer diameter；The axis hole position of gland is arranged in oil sealing, is used for sealing pivot and gland；Gland is fixedly connected with the casing by bolt, and sealing bearing pressure ring sealing space is formed between oil sealing and sealing ring.Speed reducer shaft sealing device gland clamp force cooperates sealing ring to realize to the sealing at bearing pressure ring screw thread, in gland and rotating shaft position mounting framework oil sealing, the sealing of gland and shaft is realized, to reach the improvement to oil leak.
Description
Technical field
The invention belongs to shaft seal technical fields, more particularly to a kind of speed reducer shaft sealing device.
Background technique
Slurry circulating pump is arranged in limestone-gypsum desulphurization system, and slurry circulating pump speed reducer uses parallel helical tooth speed reducer,
Rear bearing aging is used for a long time in it, and there is always oil leakage phenomenon in replacement bearing rear shaft seal position.Existing sealing means are that producer passes through
Sealant is smeared on bearing pressure ring screw thread connected to the housing to realize sealing；But after smearing sealant, sealant and shell
Screw thread is sticked together, and the withdrawal space is narrow, and disassembly when is very inconvenient.Bearing pressure ring needs to smear again when returning dress
Sealant smears back spin mandrel bearing ring and be easy to cause sealant uneven, and then permeability occurs.
Summary of the invention
The object of the present invention is to provide a kind of speed reducer shaft sealing devices, are asked with solving the technology of bearing in reduction gears permeability
Topic.
The technical scheme to solve the above technical problems is that a kind of speed reducer shaft sealing device comprising: shell
Body, shaft, bearing, bearing pressure ring, gland, sealing ring and oil sealing；The shaft is mounted in the shell, and one end of shaft is stretched
The shell out；The bearing is mounted in the shaft；The bearing pressure ring is inserted in the shaft, and bearing pressure ring and shell are logical
Threaded connection is crossed, for fixing the position of bearings；The gland is provided with axis hole, in the periphery of axis hole setting annular peace
Tankage；The sealing ring is mounted in the mounting groove；The internal diameter of the seal ring is greater than bearing pressure ring outer diameter；The oil sealing setting
In the axis hole position of the gland, it to be used for sealing pivot and gland；The gland is fixedly connected with the casing by bolt, in oil sealing
Sealing bearing pressure ring sealing space is formed between sealing ring.
Present invention speed reducer shaft sealing device as described above, further, the gland are set in the position close to outer rim
Fixation hole is set, fixation hole is set in the corresponding position of shell, using being bolted gland and casing.
Present invention speed reducer shaft sealing device as described above, further, the cross section structure of the mounting groove are U-shaped
Shape, the diameter of the sealing ring are greater than the depth of mounting groove.
Present invention speed reducer shaft sealing device as described above, further, the oil sealing are skeleton axle envelope.
Present invention speed reducer shaft sealing device as described above, further, the oil sealing include hermetically sealed case, in sealing
Mutually matched sealing surface, the setting of the first magnet is arranged in set, the first magnet and the second magnet, the hermetically sealed case and sealing inner sleeve
In the end of hermetically sealed case, the end of sealing inner sleeve is arranged in the second magnet, and the first magnet and the second magnet attract each other.
Present invention speed reducer shaft sealing device as described above, further, first magnet and the second magnet are
Nd-Fe-B permanent magnet, the first magnet and the second magnet are cyclic structure, and are axial charging.
The beneficial effects of the present invention are: speed reducer shaft sealing device cooperates sealing ring to realize to bearing pressure with gland clamp force
Sealing at ring screw thread realizes the sealing of gland and shaft, in gland and rotating shaft position mounting framework oil sealing to reach to oil leak
Improvement.
Detailed description of the invention
It will be become by made detailed description, above-mentioned and/or otherwise advantage of the invention in conjunction with the following drawings
It becomes apparent from and is easier to understand, these attached drawings are only schematical, are not intended to limit the present invention, in which:
Fig. 1 is the speed reducer shaft sealing device schematic diagram of an embodiment of the present invention；
Fig. 2 is the speed reducer shaft sealing device diagrammatic cross-section of an embodiment of the present invention；
Fig. 3 is the oil sealing schematic diagram of an embodiment of the present invention；
Fig. 4 is the oil sealing diagrammatic cross-section of an embodiment of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, gland, 2, fixation hole, 3, mounting groove, 4, oil sealing, 5, sealing ring, 6, shaft, 41, hermetically sealed case, 42, sealing inner sleeve,
43, the first magnet, the 44, second magnet.
Specific embodiment
Hereinafter, the embodiment of speed reducer shaft sealing device of the invention is described with reference to the accompanying drawings.
The embodiment recorded herein is specific specific embodiment of the invention, for illustrating design of the invention,
Be it is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also based on the claim of this application book and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include using any obvious to making for the embodiment recorded herein
The technical solution of substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating design of the invention, it is schematically indicated the shape of each section
And its correlation.It note that for the ease of clearly showing the structure of each component of the embodiment of the present invention, between each attached drawing
Do not drawn according to identical ratio.Identical reference marker is for indicating identical part.
Fig. 1 and speed reducer shaft sealing device Fig. 2 shows an embodiment of the present invention comprising: shell, shaft 6, axis
It holds, bearing pressure ring, gland 1, sealing ring 5 and oil sealing 4；Shaft 6 is mounted in shell, and shell is stretched out in one end of shaft 6；Bearing peace
In shaft 6；Bearing pressure ring is inserted in shaft 6, and bearing pressure ring is connected through a screw thread with shell, is used for fixing bearing position；Pressure
Lid is provided with axis hole, and annular mounting groove 3 is arranged in the periphery of axis hole；Sealing ring 5 is mounted in mounting groove 3；For example, mounting groove 3
Cross section structure be U-shaped, the diameter of sealing ring 5 is greater than the depth of mounting groove 3；5 internal diameter of sealing ring is greater than bearing pressure ring outer diameter；
The axis hole position of gland 1 is arranged in oil sealing 4, for sealing pivot 6 and gland 1；Gland 1 is fixedly connected with the casing by bolt,
Sealing bearing pressure ring sealing space is formed between oil sealing 4 and sealing ring 5.
Before technological transformation, bearing pressure ring and shaft position use skeleton oil seal, in the screw thread of bearing pressure ring and shell
Junction is threaded through by bearing pressure ring without sealing and smears sealant to seal.It is realized with gland clamp force cooperation sealing ring to bearing
Sealing at pressure ring screw thread realizes the sealing of gland and shaft, in gland and rotating shaft position mounting framework oil sealing to reach to leakage
The improvement of oil.
In further preferred speed reducer shaft sealing device embodiment, gland 1 is solid close to the setting of the position of outer rim
Determine hole 2, fixation hole 2 is set in the corresponding position of shell, using being bolted gland 1 and casing.Utilize fixation hole and bolt
Connection type can be realized being reliably connected for gland and casing.
In a kind of speed reducer shaft sealing device embodiment, oil sealing 4 is skeleton axle envelope.
In another speed reducer shaft sealing device embodiment, as shown in Figure 3 and Figure 4, oil sealing 4 includes hermetically sealed case
41, inner sleeve 42, the first magnet 43 and the second magnet 44 are sealed, hermetically sealed case is tubular structure, and one end is pyramidal inclined-plane
Structure；Sealing inner sleeve is tubular structure, and one end is the frustum structure cooperated with hermetically sealed case inclined-plane；Hermetically sealed case 41 and sealing
Mutually matched sealing surface is arranged in inner sleeve 42, and the end of hermetically sealed case 41 is arranged in the first magnet 43, and the setting of the second magnet 44 exists
The end of inner sleeve 42 is sealed, the first magnet 43 and the second magnet 44 attract each other.It is further preferred that the first magnet 43 and second
Magnet 44 is Nd-Fe-B permanent magnet, and the first magnet 43 and the second magnet 44 are cyclic structure, and are axial charging.
One pressure is applied to hermetically sealed case and sealing inner sleeve using the first magnet and the second magnet, hermetically sealed case is promoted to compress
Seal inner sleeve, make to seal between inner sleeve and shaft can continuous close contact, can be realized the longer service life of sealing device,
With better seal effect.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and other feature combination, and those skilled in the art are also
Can carry out other combinations between each technical characteristic according to the purpose of invention, be subject to realize the present invention purpose.
Claims (6)
1. a kind of speed reducer shaft sealing device characterized by comprising shell, shaft, bearing, bearing pressure ring, gland, close
Seal and oil sealing；The shaft is mounted in the shell, and the shell is stretched out in one end of shaft；The bearing is mounted on described
In shaft；The bearing pressure ring is inserted in the shaft, and bearing pressure ring is connected through a screw thread with shell, for fixing the bearing position
It sets；The gland is provided with axis hole, and annular mounting groove is arranged in the periphery of the axis hole；The sealing ring is mounted on the installation
In slot；The internal diameter of the seal ring is greater than bearing pressure ring outer diameter；The axis hole position of the gland is arranged in the oil sealing, for sealing
Shaft and gland；The gland is fixedly connected with the casing by bolt, and sealing bearing pressure ring is formed between oil sealing and sealing ring
Sealing space.
2. speed reducer shaft sealing device according to claim 1, which is characterized in that the gland is in the position close to outer rim
Fixation hole is installed, fixation hole is set in the corresponding position of shell, using being bolted gland and casing.
3. speed reducer shaft sealing device according to claim 1, which is characterized in that the cross section structure of the mounting groove is
U-shaped, the diameter of the sealing ring are greater than the depth of mounting groove.
4. speed reducer shaft sealing device according to claim 1, which is characterized in that the oil sealing is skeleton axle envelope.
5. speed reducer shaft sealing device according to claim 1-4, which is characterized in that the oil sealing includes close
Housing, sealing inner sleeve, the first magnet and the second magnet are sealed, mutually matched sealing is arranged in the hermetically sealed case and sealing inner sleeve
The end of hermetically sealed case is arranged in face, the first magnet, and the end of sealing inner sleeve, the first magnet and the second magnetic is arranged in the second magnet
Body attracts each other.
6. speed reducer shaft sealing device according to claim 5, which is characterized in that first magnet and the second magnet
It is Nd-Fe-B permanent magnet, the first magnet and the second magnet are cyclic structure, and are axial charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811155454.0A CN109139879A (en) | 2018-09-30 | 2018-09-30 | A kind of speed reducer shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811155454.0A CN109139879A (en) | 2018-09-30 | 2018-09-30 | A kind of speed reducer shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139879A true CN109139879A (en) | 2019-01-04 |
Family
ID=64813996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811155454.0A Pending CN109139879A (en) | 2018-09-30 | 2018-09-30 | A kind of speed reducer shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139879A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283297A (en) * | 1999-03-31 | 2000-10-13 | Kurimoto Ltd | Shaft sealing device of rotary equipment |
| US20040057847A1 (en) * | 2002-08-03 | 2004-03-25 | Wild Philip Mark | Turbocharger |
| CN102231583A (en) * | 2011-06-29 | 2011-11-02 | 宁夏西北骏马电机制造股份有限公司 | Motor shaft extension end sealing structure and motor |
| CN202165300U (en) * | 2011-07-22 | 2012-03-14 | 李冬庆 | Bearing dust-proof and water-proof structure for submerged pump |
| CN203753819U (en) * | 2014-04-04 | 2014-08-06 | 上海科利瑞克机器有限公司 | Novel ultrafine powder climbing spiral shaft end structure |
| CN204784315U (en) * | 2015-05-29 | 2015-11-18 | 深圳市特尔佳科技股份有限公司 | In put parallel hydraulic retarber |
| CN206582326U (en) * | 2017-03-01 | 2017-10-24 | 珠海康晋电气股份有限公司 | A kind of gas-insulated switchgear rotary sealing appts |
| CN209083958U (en) * | 2018-09-30 | 2019-07-09 | 北京国电龙源环保工程有限公司 | A kind of speed reducer shaft sealing device |
-
2018
- 2018-09-30 CN CN201811155454.0A patent/CN109139879A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283297A (en) * | 1999-03-31 | 2000-10-13 | Kurimoto Ltd | Shaft sealing device of rotary equipment |
| US20040057847A1 (en) * | 2002-08-03 | 2004-03-25 | Wild Philip Mark | Turbocharger |
| CN102231583A (en) * | 2011-06-29 | 2011-11-02 | 宁夏西北骏马电机制造股份有限公司 | Motor shaft extension end sealing structure and motor |
| CN202165300U (en) * | 2011-07-22 | 2012-03-14 | 李冬庆 | Bearing dust-proof and water-proof structure for submerged pump |
| CN203753819U (en) * | 2014-04-04 | 2014-08-06 | 上海科利瑞克机器有限公司 | Novel ultrafine powder climbing spiral shaft end structure |
| CN204784315U (en) * | 2015-05-29 | 2015-11-18 | 深圳市特尔佳科技股份有限公司 | In put parallel hydraulic retarber |
| CN206582326U (en) * | 2017-03-01 | 2017-10-24 | 珠海康晋电气股份有限公司 | A kind of gas-insulated switchgear rotary sealing appts |
| CN209083958U (en) * | 2018-09-30 | 2019-07-09 | 北京国电龙源环保工程有限公司 | A kind of speed reducer shaft sealing device |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Applicant after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Applicant before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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| CB02 | Change of applicant information |