CN105526365B - Rotary seal structure - Google Patents
Rotary seal structure Download PDFInfo
- Publication number
- CN105526365B CN105526365B CN201510984367.6A CN201510984367A CN105526365B CN 105526365 B CN105526365 B CN 105526365B CN 201510984367 A CN201510984367 A CN 201510984367A CN 105526365 B CN105526365 B CN 105526365B
- Authority
- CN
- China
- Prior art keywords
- oil seal
- ring
- outside framework
- framework oil
- annular
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 5
- 210000000988 bone and bone Anatomy 0.000 claims 1
- 244000309464 bull Species 0.000 claims 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 239000011499 joint compound Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses the rotary seal structure in a kind of hub reduction gear,Including frame,Wear ring,Annular felt,Oil seal seat,First O-ring,Wheel hub,First outside framework oil seal,Second O-ring,Second outside framework oil seal,Wear ring is fixedly connected in frame,Oil seal seat is connected on wheel hub,Oil seal seat has the first endoporus,Felt mounting groove and annular slot,First outside framework oil seal and the second outside framework oil seal are mounted in the first endoporus and its outer ring is interference fitted with the first endoporus,Annular felt is arranged in felt mounting groove,Wear ring has axle journal and annular flange portion,Contacted in the endoporus of axle journal the first outside framework oil seal of insertion and the second outside framework oil seal and with the lip of the first outside framework oil seal and the second outside framework oil seal,Annular flange portion is inserted in the annular slot of oil seal seat,And the inner ring of annular flange portion and annular felt contacts,First O-ring is installed between wheel hub and oil seal seat,Second O-ring is installed between frame and wear ring.The present invention can improve service life, be easy to safeguard.
Description
Technical field
The present invention relates to a kind of hub reduction gear, especially about sealing structure.
Background technology
The hub reduction gear torque output member of quarry tipper is usually wheel hub, and frame is typically secured to vehicle rear-axle shell
On, there is relative rotary motion between wheel hub and frame, wheel hub is typically influenceed by outside adverse circumstances, such as dust, mud, sand
Stone etc..Rotary seal structure is needed herein.General rotary dynamic seal exists in the prior art using skeleton oil seal
There is no the problems such as dustproof construction, sealing life are low, are inconvenient to safeguard.
The content of the invention
It is an object of the invention to provide a kind of rotary seal structure that can be improved sealing service life, be easy to maintenance.
Realizing the technical scheme of above-mentioned purpose is：A kind of rotary seal structure, including frame, wear ring, annular felt, oil
Seat, the first O-ring, wheel hub, the first outside framework oil seal, the second O-ring, the second outside framework oil seal are sealed, the wear ring is fixedly connected on
In frame, the oil seal seat is fixedly connected on wheel hub, and there is the oil seal seat the first endoporus, felt mounting groove and annular to insert
Groove, first outside framework oil seal and the second outside framework oil seal are mounted in the first endoporus of oil seal seat and its outer ring and the first endoporus interference
Coordinate, the annular felt is arranged in felt mounting groove, and the wear ring has axle journal and annular flange portion, the wear ring
Axle journal insert in the endoporus of the first outside framework oil seal and the second outside framework oil seal and with the first outside framework oil seal and the second outside framework oil seal
Lip is contacted, and the annular flange portion of the wear ring is inserted in the annular slot of oil seal seat, and the inner ring and ring of annular flange portion
Shape felt contacts, first O-ring are installed between wheel hub and oil seal seat, second O-ring be installed on frame with it is wear-resisting
Between ring.
First outside framework oil seal is single lip outside framework oil seal of interband dottle pin, and the second outside framework oil seal is single lip outside framework oil seal,
The separation pad of first outside framework oil seal offsets with the second outside framework oil seal, the side of the remote separation pad of the first outside framework oil seal and oil seal seat
On backstop offset.
The first O-ring groove is provided with the wheel hub, the first O-ring is installed in the first O-ring groove.
The second O-ring groove is provided with the frame, the second O-ring is installed in the second O-ring groove.
The oil seal seat is fixedly connected on wheel hub by bolt and gasket assembly.
The axle journal of the wear ring is fixedly connected in frame by interference fit.
The wear ring also has shoulder, and shoulder offsets with frame.
The rectangular cross-section of the felt mounting groove of the oil seal seat, the rectangular cross-section of the annular felt.
The present invention is combined, easy to disassemble and maintenance relative to prior art using two parts；Wear ring is fixedly connected on machine
On frame, preferably improve oil seal lip use environment, wear ring and oil sealing service life can be improved；Using labyrinth and felt group
Close, the entrance of external dust, mud and dust storm can be prevented, can effectively protect oil sealing, improve oil sealing service life；In ring
Shape felt applies lubricating grease, can reduce the friction of annular felt and wear ring endoporus, improves service life.
Brief description of the drawings
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is application site schematic diagram of the rotary seal structure of the present invention in hub reduction gear；
Fig. 2 is Fig. 1 I magnified partial view.
Embodiment
As shown in Figure 1, 2, a kind of rotary seal structure, including frame 1, wear ring 2, annular felt 3, oil seal seat 4, first
O-ring 6, wheel hub 7, the first outside framework oil seal 8, the second O-ring 9, the second outside framework oil seal 10, the wear ring 2 are fixedly connected on machine
On frame 1, the oil seal seat 4 is fixedly connected on wheel hub 7, the oil seal seat 4 have the first endoporus 4-1, felt mounting groove 4-2 and
Annular slot 4-3, the outside framework oil seal 10 of the first outside framework oil seal 8 and second is in the first endoporus 4-1 of oil seal seat 4 and outside it
Circle is interference fitted with the first endoporus 4-1, and the annular felt 3 is arranged in felt mounting groove 4-2, and the wear ring 2 has axle
Neck 2-1 and annular flange portion 2-2, the axle journal 2-1 of the wear ring 2 insert the first outside framework oil seal 8 and the second outside framework oil seal 10
Contacted in endoporus and with the lip of the first outside framework oil seal 8 and the second outside framework oil seal 10, the annular flange portion 2-2 of the wear ring 2
It is inserted in the annular slot 4-3 of oil seal seat 4, and annular flange portion 2-2 inner ring contacts with annular felt 3, first O-ring
6 are installed between wheel hub 7 and oil seal seat 4, and second O-ring 9 is installed between frame 1 and wear ring 2.
As shown in Fig. 2 first outside framework oil seal 8 is single lip outside framework oil seal of interband dottle pin, the second outside framework oil seal 10 is
Single lip outside framework oil seal, the separation pad of the first outside framework oil seal 8 offset with the second outside framework oil seal 10, the first outside framework oil seal 8 away between
The side of dottle pin offsets with the backstop 4-4 on oil seal seat 4.
As shown in Fig. 2 being provided with the first O-ring groove 7-1 on the wheel hub 7, the first O-ring 6 is installed on the first O-ring groove 7-
In 1.
As shown in Fig. 2 being provided with the second O-ring groove 1-1 in the frame 1, the second O-ring 9 is installed on the second O-ring groove 1-
In 1.
As shown in Fig. 2 the oil seal seat 4 is fixedly connected on wheel hub 7 by bolt and gasket assembly 5.
As shown in Fig. 2 the axle journal 2-1 of the wear ring 2 is fixedly connected in frame 1 by interference fit.
As shown in Fig. 2 the wear ring 2 also there is shoulder 2-3, shoulder 2-3 to be offseted with frame 1.
As shown in Fig. 2 the felt mounting groove 4-2 of the oil seal seat 4 rectangular cross-section, the section of the annular felt 3
For rectangle.
In use, lubricating grease use is coated between the annular periphery of felt 3 and the first outside framework oil seal 8 and the second outside framework oil seal 10
In lubrication.
Claims (8)
- A kind of 1. rotary seal structure, it is characterised in that：Including frame (1), wear ring (2), annular felt (3), oil seal seat (4), the first O-ring (6), wheel hub (7), the first outside framework oil seal (8), the second O-ring (9), the second outside framework oil seal (10), it is described resistance to Bull ring (2) is fixedly connected in frame (1), and the oil seal seat (4) is fixedly connected on wheel hub (7), and the oil seal seat (4) has First endoporus (4-1), felt mounting groove (4-2) and annular slot (4-3), first outside framework oil seal (8) and the second skeleton oil (10) are sealed in the first endoporus (4-1) of oil seal seat (4) and its outer ring is interference fitted with the first endoporus (4-1), the annular Felt (3) is arranged in felt mounting groove (4-2), and the wear ring (2) has axle journal (2-1) and annular flange portion (2-2), institute State wear ring (2) axle journal (2-1) insert the first outside framework oil seal (8) and the second outside framework oil seal (10) endoporus in and with the first bone The lip of frame oil sealing (8) and the second outside framework oil seal (10) contacts, and the annular flange portion (2-2) of the wear ring (2) is inserted in oil sealing In the annular slot (4-3) of seat (4), and the inner ring of annular flange portion (2-2) contacts with annular felt (3), first O-ring (6) it is installed between wheel hub (7) and oil seal seat (4), second O-ring (9) is installed between frame (1) and wear ring (2).
- 2. rotary seal structure according to claim 1, it is characterised in that：First outside framework oil seal (8) is spaced Single lip outside framework oil seal of pad, the second outside framework oil seal (10) are single lip outside framework oil seals, the separation pad and second of the first outside framework oil seal (8) Outside framework oil seal (10) offsets, the side of the remote separation pad of the first outside framework oil seal (8) and backstop (4-4) phase on oil seal seat (4) Support.
- 3. rotary seal structure according to claim 1, it is characterised in that：The first O-ring groove is provided with the wheel hub (7) (7-1), the first O-ring (6) are installed in the first O-ring groove (7-1).
- 4. rotary seal structure according to claim 1, it is characterised in that：The second O-ring groove is provided with the frame (1) (1-1), the second O-ring (9) are installed in the second O-ring groove (1-1).
- 5. rotary seal structure according to claim 1, it is characterised in that：The oil seal seat (4) passes through bolt and pad Component (5) is fixedly connected on wheel hub (7).
- 6. rotary seal structure according to claim 1, it is characterised in that：The axle journal (2-1) of the wear ring (2) passes through Interference fit is fixedly connected in frame (1).
- 7. rotary seal structure according to claim 1, it is characterised in that：The wear ring (2) also has shoulder (2- 3), shoulder (2-3) offsets with frame (1).
- 8. rotary seal structure according to claim 1, it is characterised in that：Felt mounting groove (the 4- of the oil seal seat (4) 2) rectangular cross-section, the rectangular cross-section of the annular felt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984367.6A CN105526365B (en) | 2015-12-25 | 2015-12-25 | Rotary seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984367.6A CN105526365B (en) | 2015-12-25 | 2015-12-25 | Rotary seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105526365A CN105526365A (en) | 2016-04-27 |
| CN105526365B true CN105526365B (en) | 2017-12-12 |
Family
ID=55768773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510984367.6A Active CN105526365B (en) | 2015-12-25 | 2015-12-25 | Rotary seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105526365B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740745B (en) * | 2017-02-06 | 2023-06-09 | 莱州亚通重型装备有限公司 | Wet braking drive axle of scraper |
| CN107061747A (en) * | 2017-05-31 | 2017-08-18 | 江苏海川卓越密封材料有限公司 | A kind of L-type liquid labyrinth seal |
| CN108561541A (en) * | 2018-05-16 | 2018-09-21 | 湖南南方宇航高精传动有限公司 | A kind of sealing structure of the main driving planetary reducer of shield |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435096A (en) * | 1981-09-11 | 1984-03-06 | Mesta Machine Company | Sealing arrangement for a rotatable member |
| IT1187539B (en) * | 1985-02-28 | 1987-12-23 | Danieli Off Mecc | LABYRINTH SEAL |
| DE10113869A1 (en) * | 2001-03-21 | 2002-09-26 | Sms Demag Ag | Sealing system for bearing for roller comprises sealing rings which fit against surface on roller shaft, rings and surface being mounted on supports which are less rigid than sealing lips on rings |
| DE102004003763B4 (en) * | 2004-01-23 | 2005-10-20 | Sms Demag Ag | Device for ball-side sealing of the bearing of a roll neck |
| CN203627804U (en) * | 2013-12-20 | 2014-06-04 | 重庆西泉泵业股份有限公司 | Sealing structure for pump suspension component |
| CN205371641U (en) * | 2015-12-25 | 2016-07-06 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rotary seal structure |
-
2015
- 2015-12-25 CN CN201510984367.6A patent/CN105526365B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105526365A (en) | 2016-04-27 |
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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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211208 Address after: 213100 No. 99, Wuyi Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 No. 51 Wuyi Road, Qishuyan, Changzhou, Jiangsu, 258 Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 213100 No. 99, Wuyi Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Country or region after: China Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: 213100 No. 99, Wuyi Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Country or region before: China Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
|
| CP03 | Change of name, title or address |