CN105526365A - Rotation sealing mechanism - Google Patents
Rotation sealing mechanism Download PDFInfo
- Publication number
- CN105526365A CN105526365A CN201510984367.6A CN201510984367A CN105526365A CN 105526365 A CN105526365 A CN 105526365A CN 201510984367 A CN201510984367 A CN 201510984367A CN 105526365 A CN105526365 A CN 105526365A
- Authority
- CN
- China
- Prior art keywords
- oil seal
- framework oil
- outside framework
- annular
- felt
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 238000000926 separation method Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 abstract 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000011499 joint compound Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- 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
Abstract
The invention discloses a rotation sealing mechanism in a hub reduction gear. The rotation sealing mechanism comprises a rack, annular felt, an oil-sealing seat, a first O-shaped ring, a hub, a first framework oil seal, a second O-shaped ring and a second framework oil seal, wherein a wearing ring is fixedly connected onto the rack; the oil-sealing seat is fixedly connected onto the hub; the oil-sealing seat is provided with a first inner hole, a felt assembly groove and an annular insertion groove; the first framework oil seal and the second framework oil seal are arranged in the first inner hole, and the outer circle of the first framework oil seal and the outer circle of the second framework oil seal are in interference fit with the first inner hole; the annular felt is arranged in the felt assembly groove; the wearing ring is provided with a journal and an annular flange part; the journal is inserted into the inner hole of the first framework oil seal and the inner hole of the second framework oil seal and is in contact with the lip of the first framework oil seal and the lip of the second framework oil seal; the annular flange part is inserted into the annular insertion groove of the oil-sealing seat, and the inner ring of the annular flange part is in contact with the annular felt; the first O-shaped ring is arranged between the hub and the oil-sealing seat; and the second O-shaped ring is arranged between the rack and the wearing ring. By adopting the rotation sealing mechanism, the service life is prolonged; and the maintenance is convenient.
Description
Technical field
The present invention relates to a kind of wheel reductor, especially about sealing configuration.
Background technique
The wheel reductor torque output member of quarry tipper is generally wheel hub, and frame is generally fixed on vehicle rear-axle shell, has relative rotary motion between wheel hub with frame, and wheel hub is generally subject to outside harsh environmental effects, as dust, mud, sandstone etc.Need rotary seal structure herein.What general rotary dynamic seal adopted is skeleton oil seal, but exist in prior art do not have dustproof construction, sealing life low, be inconvenient to problems such as safeguarding.
Summary of the invention
The object of this invention is to provide a kind of can improve sealing working life, be convenient to safeguard rotary seal structure.
The technological scheme realizing above-mentioned purpose is: a kind of rotary seal structure, comprise frame, wear ring, annular felt, oil sealing base, one O shape circle, wheel hub, first outside framework oil seal, 2nd O shape circle, second outside framework oil seal, described wear ring is fixedly connected in frame, described oil sealing base is fixedly connected on wheel hub, described oil sealing base has the first endoporus, felt mounting groove and annular slot, described first outside framework oil seal and the second outside framework oil seal are contained in the first endoporus of oil sealing base and its outer ring and the first endoporus interference fit, described annular felt is arranged in felt mounting groove, described wear ring has axle journal and annular flange portion, the axle journal of described wear ring inserts the first outside framework oil seal and contacts with the lip of the first outside framework oil seal with the second outside framework oil seal with in the endoporus of the second outside framework oil seal, the annular flange portion of described wear ring is inserted in the annular slot of oil sealing base, and the inner ring of annular flange portion and annular felt contacts, a described O shape circle is installed between wheel hub and oil sealing base, described 2nd O shape circle is installed between frame and wear ring.
Described first outside framework oil seal is single lip outside framework oil seal of band separation pad, and the second outside framework oil seal is single lip outside framework oil seal, and separation pad and second outside framework oil seal of the first outside framework oil seal offset, and the backstop on the side away from separation pad of the first outside framework oil seal and oil sealing base offsets.
Described wheel hub has an O shape ring recess, an O shape circle is installed in an O shape ring recess.
Described frame has the 2nd O shape ring recess, the 2nd O shape circle is installed in the 2nd O shape ring recess.
Described oil sealing base is fixedly connected on wheel hub by bolt and gasket assembly.
The axle journal of described wear ring is fixedly connected in frame by interference fit.
Described wear ring also has shoulder, and shoulder and frame offset.
The cross section of the felt mounting groove of described oil sealing base is rectangle, and the cross section of described annular felt is rectangle.
The present invention, relative to prior art, adopts two-part combination, is convenient to dismounting and safeguards; Wear ring is fixedly connected in frame, improves oil seal lip Environmental Conditions preferably, can improve wear ring and oil sealing working life; Adopt labyrinth and felt combination, entering of external dust, mud and dust storm can be prevented, effectively can protect oil sealing, improve oil sealing working life; Be coated with lubricating grease at annular felt, the friction of annular felt and wear ring endoporus can be reduced, improve working life.
Accompanying drawing explanation
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the application site schematic diagram of rotary seal structure of the present invention in wheel reductor;
Fig. 2 is I magnified partial view of Fig. 1.
Embodiment
As Fig. 1, shown in 2, a kind of rotary seal structure, comprise frame 1, wear ring 2, annular felt 3, oil sealing base 4, one O shape circle 6, wheel hub 7, first outside framework oil seal 8, 2nd O shape circle 9, second outside framework oil seal 10, described wear ring 2 is fixedly connected in frame 1, described oil sealing base 4 is fixedly connected on wheel hub 7, described oil sealing base 4 has the first endoporus 4-1, felt mounting groove 4-2 and annular slot 4-3, described first outside framework oil seal 8 and the second outside framework oil seal 10 are contained in the first endoporus 4-1 of oil sealing base 4 and its outer ring and the first endoporus 4-1 interference fit, described annular felt 3 is arranged in felt mounting groove 4-2, described wear ring 2 has axle journal 2-1 and annular flange portion 2-2, the axle journal 2-1 of described wear ring 2 inserts the first outside framework oil seal 8 and contacts with the lip of the first outside framework oil seal 8 with the second outside framework oil seal 10 with in the endoporus of the second outside framework oil seal 10, the annular flange portion 2-2 of described wear ring 2 is inserted in the annular slot 4-3 of oil sealing base 4, and the inner ring of annular flange portion 2-2 contacts with annular felt 3, a described O shape circle 6 is installed between wheel hub 7 and oil sealing base 4, described 2nd O shape circle 9 is installed between frame 1 and wear ring 2.
As shown in Figure 2, described first outside framework oil seal 8 is single lip outside framework oil seals of band separation pad, second outside framework oil seal 10 is single lip outside framework oil seals, separation pad and second outside framework oil seal 10 of the first outside framework oil seal 8 offset, and the backstop 4-4 on the side away from separation pad of the first outside framework oil seal 8 and oil sealing base 4 offsets.
As shown in Figure 2, described wheel hub 7 has an O shape ring recess 7-1, an O shape circle 6 is installed in an O shape ring recess 7-1.
As shown in Figure 2, described frame 1 has the 2nd O shape ring recess 1-1, the 2nd O shape circle 9 is installed in the 2nd O shape ring recess 1-1.
As shown in Figure 2, described oil sealing base 4 is fixedly connected on wheel hub 7 by bolt and gasket assembly 5.
As shown in Figure 2, the axle journal 2-1 of described wear ring 2 is fixedly connected in frame 1 by interference fit.
As shown in Figure 2, described wear ring 2 also has shoulder 2-3, and shoulder 2-3 and frame 1 offset.
As shown in Figure 2, the cross section of the felt mounting groove 4-2 of described oil sealing base 4 is rectangle, and the cross section of described annular felt 3 is rectangle.
During use, annular felt 3 periphery and coat between the first outside framework oil seal 8 and the second outside framework oil seal 10 lubricating grease for lubrication.
Claims (8)
1. a rotary seal structure, it is characterized in that: comprise frame (1), wear ring (2), annular felt (3), oil sealing base (4), one O shape circle (6), wheel hub (7), first outside framework oil seal (8), 2nd O shape circle (9), second outside framework oil seal (10), described wear ring (2) is fixedly connected in frame (1), described oil sealing base (4) is fixedly connected on wheel hub (7), described oil sealing base (4) has the first endoporus (4-1), felt mounting groove (4-2) and annular slot (4-3), described first outside framework oil seal (8) and the second outside framework oil seal (10) to be contained in first endoporus (4-1) of oil sealing base (4) and its outer ring and the first endoporus (4-1) interference fit, described annular felt (3) is arranged in felt mounting groove (4-2), described wear ring (2) has axle journal (2-1) and annular flange portion (2-2), the axle journal (2-1) of described wear ring (2) inserts the first outside framework oil seal (8) and contacts with the lip of the first outside framework oil seal (8) with the second outside framework oil seal (10) with in the endoporus of the second outside framework oil seal (10), the annular flange portion (2-2) of described wear ring (2) is inserted in the annular slot (4-3) of oil sealing base (4), and the inner ring of annular flange portion (2-2) contacts with annular felt (3), described O shape circle (6) is installed between wheel hub (7) and oil sealing base (4), described 2nd O shape circle (9) is installed between frame (1) and wear ring (2).
2. rotary seal structure according to claim 1, it is characterized in that: described first outside framework oil seal (8) is single lip outside framework oil seal of band separation pad, second outside framework oil seal (10) is single lip outside framework oil seal, separation pad and second outside framework oil seal (10) of the first outside framework oil seal (8) offset, and the backstop (4-4) on the side away from separation pad of the first outside framework oil seal (8) and oil sealing base (4) offsets.
3. rotary seal structure according to claim 1, is characterized in that: described wheel hub (7) has an O shape ring recess (7-1), and O shape circle (6) is installed in an O shape ring recess (7-1).
4. rotary seal structure according to claim 1, is characterized in that: described frame (1) has the 2nd O shape ring recess (1-1), and the 2nd O shape circle (9) is installed in the 2nd O shape ring recess (1-1).
5. rotary seal structure according to claim 1, is characterized in that: described oil sealing base (4) is fixedly connected on wheel hub (7) by bolt and gasket assembly (5).
6. rotary seal structure according to claim 1, is characterized in that: the axle journal (2-1) of described wear ring (2) is fixedly connected in frame (1) by interference fit.
7. rotary seal structure according to claim 1, is characterized in that: described wear ring (2) also has shoulder (2-3), and shoulder (2-3) and frame 1 offset.
8. rotary seal structure according to claim 1, is characterized in that: the cross section of the felt mounting groove (4-2) of described oil sealing base (4) is rectangle, and the cross section of described annular felt (3) is rectangle.
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 true CN105526365A (en) | 2016-04-27 |
| CN105526365B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740745A (en) * | 2017-02-06 | 2017-05-31 | 莱州亚通重型装备有限公司 | A kind of scraper wet-type braking driving axle |
| 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 |
Citations (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 |
| US4679801A (en) * | 1985-02-28 | 1987-07-14 | Danieli & C. Officine Meccanische Spa | Labyrinth seal with pressurized sealing packing |
| CN1498139A (en) * | 2001-03-21 | 2004-05-19 | SMS�����ɷݹ�˾ | Sealing device for roll bearing with compensation for radial offset |
| US20070290448A1 (en) * | 2004-01-23 | 2007-12-20 | Konrad Roeingh | Device for Sealing the Ball Side of a Bearing of a Roller Stud |
| 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
Patent Citations (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 |
| US4679801A (en) * | 1985-02-28 | 1987-07-14 | Danieli & C. Officine Meccanische Spa | Labyrinth seal with pressurized sealing packing |
| CN1498139A (en) * | 2001-03-21 | 2004-05-19 | SMS�����ɷݹ�˾ | Sealing device for roll bearing with compensation for radial offset |
| US20070290448A1 (en) * | 2004-01-23 | 2007-12-20 | Konrad Roeingh | Device for Sealing the Ball Side of a Bearing of a Roller Stud |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 于惠力等: "滚动轴承的润滑和密封", 《学生版简明机械设计手册》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740745A (en) * | 2017-02-06 | 2017-05-31 | 莱州亚通重型装备有限公司 | A kind of scraper wet-type braking driving axle |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105526365B (en) | 2017-12-12 |
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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. Guo jiahuodiqu after: Zhong Guo 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. Guo jiahuodiqu before: Zhong Guo Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
|
| CP03 | Change of name, title or address |