CN110345167A - Structure is kept off after a kind of novel high speed railway bearing - Google Patents
Structure is kept off after a kind of novel high speed railway bearing Download PDFInfo
- Publication number
- CN110345167A CN110345167A CN201910769843.0A CN201910769843A CN110345167A CN 110345167 A CN110345167 A CN 110345167A CN 201910769843 A CN201910769843 A CN 201910769843A CN 110345167 A CN110345167 A CN 110345167A
- Authority
- CN
- China
- Prior art keywords
- axle box
- bearing
- rear shelves
- seal groove
- sealing 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 claims abstract description 56
- 210000002445 nipple Anatomy 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009545 invasion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Invention describes keep off structure after a kind of novel high speed railway bearing, including rear gear, axle box and washer, it is characterized in that: lateral recumbent posture " mountain " font circular ring structure being solidified as a whole that the rear shelves are made of Cylindrical nipples and labyrinth sealing slot, sealing ring, rear shelves are arranged far from the axle of bearing side of shaft end；The axle box is arranged in the outside of bearing, one end inner hole and bearing outer ring clearance fit of axle box, and the other end end face outside of axle box is made of labyrinth sealing slot, sealing ring and the seal groove on rear shelves and sealing ring are inlayed and cooperated together.The novel in structural design, install convenient, gear cooperatively forms labyrinth non-contact sealing with axle box afterwards, a confined space is provided for bearing, it effectively prevent the dirts such as rainwater or aqueous vapor to enter inside axle box, washer between bearing inner race and rear gear, reduces the abrasion for keeping off after even avoiding and generating between bearing inner race, improves the service life and reliability of bearing.
Description
Technical field
The invention belongs to keep off design field after high-speed railway bearing, and in particular to a kind of high speed with sealing performance
Structure is kept off after railway bearing.
Background technique
High-speed railway bearing is that components, the performances such as speed, life and reliability are built in the pass of Highs-speed motor train unit bogie
Vehicle reliability of operation and safety are directly affected, the high-speed railway bearing speed of service is fast, and the non-maintaining period is long, in operation
Situations such as wind speed is big, sand and dust are more, frequently encounters air humidity big, rainwater weather, the poor sealing performance of bearing can allow dust, water
Gas or other dirts intrude into Bearing inner and cause the rotten of lubricating grease, to greatly shorten the non-maintaining period, increase maintenance at
This；Dust, rainwater in order to prevent, aqueous vapor or other dirts intrude into Bearing inner and cause the rotten of lubricating grease, it is desirable to bearing
There is good self-sealing performance, it is close if further self-sealing bearing is in the enclosure space with leakproofness
Sealing effect can be more preferably.And in actual conditions, front cover is in by the bearing side of proximal ends and axle box matches one be combined into sealing
Space in, the bearing side far from shaft end keeps off because after and fails to cooperatively form sealing space with axle box, so that bearing side is in
In one open space, the sealing effect of bearing is influenced not, to influence the life and reliability of bearing.
Summary of the invention
The purpose of the present invention is to propose to keep off structure after a kind of novel high speed railway bearing, which matches with axle box is combined
A non-contact labyrinth sealing structure is synthesized, provides a closed space for bearing, in conjunction with the sealing of bearing itself, is formed
Dual-seal prevents dust, aqueous vapor or other dirts invasion Bearing inner, while also having high reliability, low friction, low mill
The characteristic of damage.
Following technical solution can be used to realize in the purpose of the present invention: keeping off structure after a kind of novel high speed railway bearing, wraps
Gear, axle box and washer after including；The rear shelves are solidified as a whole by Cylindrical nipples with what labyrinth sealing slot, sealing ring were constituted
Lateral recumbent posture " mountain " font circular ring structure, seal groove, sealing ring one side end face of Cylindrical nipples outer rim, along cylinder even
Female connector radial distribution, rear shelves are arranged far from the axle diameter of axle of the bearing side of shaft end, and inner hole and the axle diameter of axle of rear shelves are adopted
Interference fit is taken to be pressed；The outside of bearing is arranged in the axle box, and axle box is cylindrical structure, and the inner hole of cylindrical body is set as
Stepped hole, maximum stepped hole and bearing outer ring clearance fit, the end face outside in minimum step hole are set as by seal groove, sealing ring
The labyrinth type circular ring structure being solidified as a whole constituted, the sealing ring of axle box and the seal groove on seal groove and rear shelves and sealing ring are inlayed
It is embedding to cooperate together；The washer be arranged in rear shelves one side end face of Cylindrical nipples and bearing inner race end face it
Between.
The rear shelves material is steel, after the seal groove blocked and sealing ring cross section be rectangular configuration, on rear shelves
Sealing ring gap on seal groove and axle box cooperates, the seal groove clearance fit on sealing ring and axle box on rear shelves.
Sealing ring and seal groove on the axle box, seal groove and sealing ring-shaped in shape and size and rear shelves
Corresponding with size, the seal groove on sealing ring and seal groove and rear shelves on axle box cooperatively forms non-contact labyrinth with sealing ring
Formula sealing structure.
The gasket materials are plastic-steel, and shape is L-shaped circular ring structure, and L-shaped short side annulus covers the cylinder in rear shelves
On the outer diameter of shape connector sleeve.
The beneficial effects of the present invention are: the novel in structural design, install convenient, it is non-that rear gear with axle box has cooperatively formed labyrinth
Contact seal provides a confined space for bearing, and sealing effect is more preferably；Washer between bearing inner race and rear gear, can
It effectively prevent the dirts such as rainwater or aqueous vapor to enter inside axle box along axle, while keeping off after can reducing or even avoiding and bearing
The abrasion occurred between inner ring by relative rotation improve the service life and reliability of bearing.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is rear shelves schematic cross-section of the invention；
Fig. 3 is axle box schematic cross-section of the invention；
Fig. 4 is washer schematic cross-section of the invention；
Marked in the figure: 1, rear shelves, 2, axle box, 3, washer, 4, bearing outer ring, 5, bearing inner race, 6, rear shelves seal groove, 7, rear shelves it is close
Seal ring, 8, Cylindrical nipples, 9, axle box sealing ring, 10, axle box seal groove.
Specific embodiment
A specific embodiment of the invention is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, structure, including rear gear 1,2 and of axle box are kept off after a kind of novel high speed railway bearing
Washer 3；The rear shelves 1 are solidified as a whole by Cylindrical nipples 8 with what shelves seal groove 6, rear shelves sealing ring 7 after labyrinth type were constituted
Lateral recumbent posture " mountain " font circular ring structure, rear shelves seal groove 6, rear shelves sealing ring 7 are outer 8 one side end face of Cylindrical nipples
Edge, along 8 radial distribution of Cylindrical nipples, rear shelves 1 are arranged far from the axle diameter of axle of the bearing side of shaft end, are risen to bearing
Fixed effect is limited, the inner hole and the axle diameter of axle of rear shelves 1 take interference fit to be pressed, and the material of rear shelves 1 is steel, and rear shelves are close
Sealing groove 6 and rear 7 cross section of shelves sealing ring are rectangular configuration.The outside of bearing is arranged in the axle box 2, and axle box 2 is cylindrical body
Structure, the inner hole of cylindrical body are set as stepped hole, maximum stepped hole and 4 clearance fit of bearing outer ring, the outside in minimum step hole
End face is set as the labyrinth type circular ring structure being solidified as a whole being made of axle box sealing ring 9, axle box seal groove 10, axle box sealing ring
9 is corresponding with the shape and size of the shape and size of axle box seal groove 10 and rear shelves seal groove 6 and rear shelves sealing ring 7, axle box
Sealing ring 9, which is inlayed with axle box seal groove 10 and rear shelves seal groove 6 with rear 7 clearance fit of shelves sealing ring, to link together, and is formed non-
Labyrinth seal structure is contacted, makes bearing in closed space, in addition the sealing element of bearing itself, the combination of the two is more effective
The invasion for preventing dust, aqueous vapor or other dirts；Half rectangular space formed inside axle box 2 can be provided to bearing seal
Sufficient space, to avoid interfering phenomenon with bearing seal.The washer 3 is arranged in the cylindrical of rear shelves 1 and connects
Between one side end face of female connector 8 and the end face of bearing inner race 5,3 material of washer is plastic-steel, and shape is L-shaped circular ring structure, L shape
Short side annulus cover on the outer diameter of the Cylindrical nipples 8 of rear shelves 1, in this way connection make after gear 1 and bearing inner race 5 between metal
It is contacted with metal and is changed into metal and is contacted with nonmetallic, reduced after even avoiding between gear 1 and bearing inner race 5 because relatively rotating
And the abrasion occurred.
In assembly, first on axle, rear shelves 1 are interference fitted 1 pressing sleeve of shelves the present invention with the axle diameter of axle by after, are reloaded into
Washer 3 covers the short side annulus of washer 3 on the Cylindrical nipples 8 of rear shelves 1, then bearing is installed on axle, bearing
Washer 3 is close in the end face of inner ring 5, reduces the abrasion between bearing inner race 5 and rear shelves 1 in this way, finally by 2 bearing set of axle box
On, cooperate with bearing clearance, while axle box sealing ring 9 and axle box seal groove 10 and rear shelves seal groove 6 and rear 7 gap of shelves sealing ring
Cooperation, which is inlayed, to link together, and forms non-contact labyrinth sealing structure, effectively prevents dust, aqueous vapor or other dirts
Invasion；The sealing structure performance significantly improves, and extends the non-maintaining period of bearing, so that the service life of bearing is increased,
Reduce maintenance cost.
Part not in the detailed description of the invention is the prior art.
Claims (4)
1. structure is kept off after a kind of novel high speed railway bearing, including rear gear (1), axle box (2) and washer (3), it is characterized in that: described
Rear shelves (1) being solidified as a whole of being made of shelves seal groove (6), rear shelves sealing ring (7) after Cylindrical nipples (8) and labyrinth type
Lateral recumbent posture " mountain " font circular ring structure, rear shelves seal groove (6), rear shelves sealing ring (7) are in (8) one side end face of cylindrical type connector sleeve
Outer rim, along Cylindrical nipples (8) radial distribution, on the axle diameter of axle for the bearing side that rear shelves (1) are arranged far from shaft end, after
The inner hole and the axle diameter of axle of shelves (1) take interference fit to be pressed；The outside of bearing is arranged in the axle box (2), and axle box (2) is
Cylindrical structure, the inner hole of cylindrical body are set as stepped hole, maximum stepped hole and bearing outer ring (4) clearance fit, minimum step
The end face outside in hole is set as the labyrinth type annulus knot being solidified as a whole being made of axle box sealing ring (9), axle box seal groove (10)
Structure, axle box sealing ring (9) and axle box seal groove (10) and rear shelves seal groove (6) inlay mating connection with rear shelves sealing ring (7) and exist
Together；The washer 3 is arranged between (8) one side end face of Cylindrical nipples of rear shelves 1 and the end face of bearing inner race (5).
2. structure is kept off after a kind of novel high speed railway bearing according to claim 1, it is characterized in that: the rear shelves (1)
Material is steel, and keeping off seal groove (6) and rear shelves sealing ring (7) cross section afterwards is rectangular configuration, and rear shelves seal groove (6) and axle box are close
Seal ring (9) clearance fit, rear shelves sealing ring (7) and axle box seal groove (10) clearance fit.
3. structure is kept off after a kind of novel high speed railway bearing according to claim 1, it is characterized in that: the axle box seals
Ring (9) and axle box seal groove (10), the shape and size phase of shape, size and rear shelves seal groove (6) and rear shelves sealing ring (7)
Corresponding, axle box sealing ring (9) cooperatively forms non-connect with rear shelves sealing ring (7) with axle box seal groove (10) and rear shelves seal groove (6)
Touch labyrinth seal structure.
4. structure is kept off after a kind of novel high speed railway bearing according to claim 1, it is characterized in that: 3 material of washer
Material is plastic-steel, and shape is L-shaped circular ring structure, and L-shaped short side annulus covers the outer diameter in the Cylindrical nipples (8) of rear shelves (1)
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769843.0A CN110345167A (en) | 2019-08-20 | 2019-08-20 | Structure is kept off after a kind of novel high speed railway bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769843.0A CN110345167A (en) | 2019-08-20 | 2019-08-20 | Structure is kept off after a kind of novel high speed railway bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110345167A true CN110345167A (en) | 2019-10-18 |
Family
ID=68180867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910769843.0A Pending CN110345167A (en) | 2019-08-20 | 2019-08-20 | Structure is kept off after a kind of novel high speed railway bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110345167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701195A (en) * | 2019-10-30 | 2020-01-17 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Double-row conical rolling bearing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336651A (en) * | 2002-05-21 | 2003-11-28 | Ntn Corp | Bearing for axle of rolling stock |
| JP2009138879A (en) * | 2007-12-07 | 2009-06-25 | Ntn Corp | Railroad vehicle axle bearing device |
| JP2011256965A (en) * | 2010-06-10 | 2011-12-22 | Ntn Corp | Bearing device for axle of railway vehicle |
| JP2016008700A (en) * | 2014-06-26 | 2016-01-18 | 日本精工株式会社 | Axle device for railway vehicle |
| FR3039865A1 (en) * | 2015-08-05 | 2017-02-10 | Ntn-Snr Roulements | BEARING ASSEMBLY, VEHICLE AXLE COMPRISING SUCH A BEARING ASSEMBLY AND METHOD FOR MOUNTING A BEARING ASSEMBLY |
| CN107747596A (en) * | 2017-07-29 | 2018-03-02 | 山东吉恩纳机械工程技术有限公司 | A kind of passenger train axlebox assemblies of four resealings |
| CN210661082U (en) * | 2019-08-20 | 2020-06-02 | 洛阳Lyc轴承有限公司 | Novel high-speed railway bearing backstop structure |
-
2019
- 2019-08-20 CN CN201910769843.0A patent/CN110345167A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336651A (en) * | 2002-05-21 | 2003-11-28 | Ntn Corp | Bearing for axle of rolling stock |
| JP2009138879A (en) * | 2007-12-07 | 2009-06-25 | Ntn Corp | Railroad vehicle axle bearing device |
| JP2011256965A (en) * | 2010-06-10 | 2011-12-22 | Ntn Corp | Bearing device for axle of railway vehicle |
| JP2016008700A (en) * | 2014-06-26 | 2016-01-18 | 日本精工株式会社 | Axle device for railway vehicle |
| FR3039865A1 (en) * | 2015-08-05 | 2017-02-10 | Ntn-Snr Roulements | BEARING ASSEMBLY, VEHICLE AXLE COMPRISING SUCH A BEARING ASSEMBLY AND METHOD FOR MOUNTING A BEARING ASSEMBLY |
| CN107747596A (en) * | 2017-07-29 | 2018-03-02 | 山东吉恩纳机械工程技术有限公司 | A kind of passenger train axlebox assemblies of four resealings |
| CN210661082U (en) * | 2019-08-20 | 2020-06-02 | 洛阳Lyc轴承有限公司 | Novel high-speed railway bearing backstop structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701195A (en) * | 2019-10-30 | 2020-01-17 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Double-row conical rolling bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Country or region after: China Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Applicant after: Luoyang Bearing Group Co.,Ltd. Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Applicant before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information |