CN110316218A - A kind of high-speed railway axle box bearing bolts at axle end anti-loose structure - Google Patents
A kind of high-speed railway axle box bearing bolts at axle end anti-loose structure Download PDFInfo
- Publication number
- CN110316218A CN110316218A CN201910751329.4A CN201910751329A CN110316218A CN 110316218 A CN110316218 A CN 110316218A CN 201910751329 A CN201910751329 A CN 201910751329A CN 110316218 A CN110316218 A CN 110316218A
- Authority
- CN
- China
- Prior art keywords
- bolt
- loosing slice
- box bearing
- axle box
- hole
- 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
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F15/00—Axle-boxes
- B61F15/20—Details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The present invention relates to a kind of high-speed railway axle box bearing bolts at axle end anti-loose structures, including anti-loosing slice, front cover, bolt and axis, there are three threaded holes for the end face circumference in equal parts setting of the axis, hex bolts is respectively arranged in each threaded hole, front cover to limit axle box bearing axial displacement is arranged between axial end and bolt head medial surface, and anti-loosing slice is arranged between front cover and bolt head medial surface；The stamping parts of the anti-loosing slice generally isosceles triangle, the equal rounded corner in outside of each interior angle of triangle, the through-hole that bolt passes through is separately provided on the inside of each interior angle, be respectively provided with outside each through-hole aperture there are two for limit bolt head rotation limit plate.The present invention can be very good to prevent the fixing bolt of shaft end from loosening, and be convenient for Bolt dismantling, while designed anti-loosing slice also has the advantages that high reliability, high friction, low abrasion, manufacturing cost are low.
Description
Technical field
The present invention relates to the mounting technology of high-speed railway bearing, specifically a kind of high-speed railway axle box bearing bolts at axle end is anti-
Loose structure.
Background technique
High-speed railway axle box bearing not only acts as support, turning effort in train operation, there are also the function of axially position,
The realization of the function also needs other components to limit bearing other than the interference fit with axis, wherein the bolt of shaft end
Axle box bearing axial displacement is limited by front cover.Bullet train group, the speed of service is fast, generates to axle box bearing bolts at axle end larger
Vibratory impulse easily makes bolt looseness, loses the axial positioning function to axle box bearing so as to cause front cover, causes to train operation
Security risk.
Currently, common screw locking structure or be the pin shaft being arranged on the outside of bolt head for limiting bolt rotation,
Perhaps by bolt head with by fastener weld together or for above-mentioned two situations combination, be applied to high-speed railway axis
When the bolts at axle end of axle box bearing is locking, the problem is that it is not easy to disassemble when in use, influence part exchanging efficiency.Also make
With loose-proof sleeve, such as patent CN201910284223.8(distance-adjusting oar blade root anti-loosening device of bolt), patent
CN201720818056.7(welded type screw retention set), above structure is in the bolts at axle end for being applied to high-speed railway axle box bearing
When locking, since shaft end area is smaller, axle box working space is limited, and there is also problems not easy to disassemble.And high-speed railway bearing
In use, it is good that anti-loosing effect is not required nothing more than in order to not influence railway normal operation because of its repair rate height, while being convenient for zero
The replacement of part is also extremely important.
Summary of the invention
The purpose of the present invention is to propose to a kind of high-speed railway axle box bearing bolts at axle end anti-loose structures, by bolt head
Stamping forming anti-loosing slice is designed between inside and shaft end positioning front cover, not only can be very good the fixing bolt pine for preventing shaft end
It is dynamic, it is convenient for Bolt dismantling, while also there is high reliability, high friction, low abrasion, the characteristic of low cost.
To achieve the above object, the invention is realized by the following technical scheme: a kind of high-speed railway axle box bearing shaft end spiral shell
Bolt anti-loose structure, including anti-loosing slice, front cover, bolt and axis, there are three threaded holes for the end face circumference in equal parts setting of the axis, each
Hex bolts is respectively arranged in threaded hole, the front cover to limit axle box bearing axial displacement is arranged in axial end and bolt head
Between portion's medial surface, anti-loosing slice is arranged between front cover and bolt head medial surface；The anti-loosing slice generally isoceles triangle
The stamping parts of shape, the equal rounded corner in outside of each interior angle of triangle are separately provided for bolt on the inside of each interior angle and pass through
Through-hole, be respectively provided with outside each through-hole aperture there are two the limit plate for limiting bolt head rotation, the limit plate is whole
Body is arc panel, and arc shaped inside side is solidified as a whole with anti-loosing slice, is provided with angle between the arc-shaped edges and anti-loosing slice of limit plate,
The angle is greater than 15 degree.
The angle bisection of two limit plate interior angles locating for the through-hole on the anti-loosing slice outside each through-hole aperture
Line is symmetrical, and the angle of line is between 90 °~120 ° between the center of circle and the through hole center of two limit plates.
The middle part is provided with lightening holes for the anti-loosing slice.
The front cover generally circular plate structure, one end are in contact with axial end, and the three of other end and shaft end
A threaded hole is corresponding to be set there are three boss, and each boss middle part is equipped with the axially extending bore passed through for bolt.
Installation principle of the invention: three bolts are threaded through respectively on the front cover and anti-loosing slice of overlapping, shaft end is fastened on
Afterwards, front cover positions bearing face, with hand or flat mouth screwdriver that the limit plate on anti-loosing slice is cocked one by one at this time, by limit
The deformation at yield of position plate itself makes the arc-shaped edges of limit plate hold out against the side of hexagon bolt head, to prevent bolt rotation pine
It is dynamic；When needing replacing axle box bearing, limit plate is pulled open, bolt is unclamped and is replaced；Anti-loosing slice regards the fatigue limit of material, can
It repeatedly uses.
The beneficial effects of the present invention are: can be very good to prevent the fixing bolt of shaft end from loosening, it is convenient for Bolt dismantling, simultaneously
Designed anti-loosing slice also has the advantages that high reliability, high friction, low abrasion, manufacturing cost are low.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is main view of the invention.
Fig. 3 is the schematic diagram of anti-loosing slice.
Fig. 4 be in Fig. 3 A to revolved sectional view.
In figure, 1, anti-loosing slice, 2, front cover, 3, bolt, 4, axis, 5, limit plate, 6, lightening hole, 7, boss.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
As shown in Figure of description 1,2,3,4, a kind of high-speed railway axle box bearing bolts at axle end anti-loose structure, including it is locking
Piece 1, front cover 2, bolt 3 and axis 4, the end face circumference in equal parts setting of the axis 4 are set in each threaded hole respectively there are three threaded hole
Be equipped with hex bolts 3, the front cover 2 to limit axle box bearing axial displacement be arranged 4 end face of axis and 3 inner portion face of bolt it
Between, anti-loosing slice 1 is arranged between 3 inner portion face of front cover 2 and bolt；The generally isosceles triangle of anti-loosing slice 1 rushes
Casting die, the equal rounded corner in outside of each interior angle of triangle are separately provided for the through-hole that bolt passes through on the inside of each interior angle,
For limiting the limit plate 5 of bolt head rotation, the limit plate 5 generally arc there are two being respectively provided with outside each through-hole aperture
Shape plate, arc shaped inside side are solidified as a whole with anti-loosing slice 1, are provided with angle between the arc-shaped edges and anti-loosing slice 1 of limit plate 5, institute
Angle is stated greater than 15 degree.In above structure, three bolts 3 are combined by anti-loosing slice 1, convenient for the stabilization of anti-loose structure；
Anti-loosing slice 1 is designed as stamping parts, handling ease, low manufacture cost；Limit plate 5 is solidified as a whole with anti-loosing slice 1, by limit plate 5
The deformation at yield of itself to carry out position restriction to each 3 head side of bolt, easy to operate, quick.
The angle of two interior angles locating for the through-hole of limit plate 5 on the anti-loosing slice 1 outside each through-hole aperture is flat
Separated time is symmetrical, and the angle of line is between 90 °~120 ° between the center of circle and the through hole center of two limit plates 5.Such angle
Degree can carry out position restriction to two sides on 3 head of bolt, increase reliability, while structure is beautiful, convenient for anti-loosing slice 1
Production processing.
The middle part is provided with lightening holes 6 for the anti-loosing slice 1.Also with observable anti-loosing slice 1 and 2 bonding state of front cover
Effect.
The front cover 2 generally circular plate structure, one end are in contact with 4 end face of axis, other end and shaft end
Three threaded holes are corresponding to be set there are three boss 7, is equipped with the axially extending bore passed through for bolt 3 in the middle part of each boss 7.Design three
The firmness of contact site can be enhanced in a boss 7, prevents anti-loosing slice 1 from causing the vibration when axis 4 rotates because of warping deformation.
Application method of the invention: the initial position of the limit plate 5 is directed towards the lateral direction inclination of bolt hole, angle
Degree should be pulled convenient for finger or tool, and not influence the installation and fastening of bolt 3；After bolt 3 fastens, cocked limit plate 5 makes
Limit plate 5 is tilted to bolt hole interior direction, and the hexagonal side in 3 head of arc-shaped edges puller bolt of limit plate 5 when necessary may be used
It is reinforced in the middle part of limit plate 5, so that 5 overall deformation of limit plate is recessed, enhance the firmness held out against；When demounting bolt 3, can with hand or
Person's flat mouth screwdriver tilts limit plate 5, then pulls to the position for not influencing 3 end rotation of bolt.
Part not in the detailed description of the invention is the prior art.
Claims (4)
1. a kind of high-speed railway axle box bearing bolts at axle end anti-loose structure, it is characterized in that: including anti-loosing slice, front cover, bolt and axis,
The end face circumference in equal parts setting of the axis is respectively arranged with hex bolts in each threaded hole, to limit there are three threaded hole
The front cover of axle box bearing axial displacement is arranged between axial end and bolt head medial surface, and anti-loosing slice is arranged in front cover and bolt
Between inner portion face；It falls in the outside of the stamping parts of the anti-loosing slice generally isosceles triangle, each interior angle of triangle
Fillet is separately provided for the through-hole that bolt passes through on the inside of each interior angle, be respectively provided with outside each through-hole aperture there are two
For limiting the limit plate of bolt head rotation, the limit plate generally arc panel, arc shaped inside side is admittedly with anti-loosing slice
One, is provided with angle between the arc-shaped edges and anti-loosing slice of limit plate, the angle is greater than 15 degree.
2. a kind of high-speed railway axle box bearing bolts at axle end anti-loose structure according to claim 1, it is characterized in that: described
The angular bisector of two limit plate interior angles locating for the through-hole on anti-loosing slice outside each through-hole aperture is symmetrical, two limits
The angle of line is between 90 °~120 ° between the center of circle of plate and the through hole center.
3. a kind of high-speed railway axle box bearing bolts at axle end anti-loose structure according to claim 1, it is characterized in that: described
The middle part is provided with lightening holes for anti-loosing slice.
4. a kind of high-speed railway axle box bearing bolts at axle end anti-loose structure according to claim 1, it is characterized in that: before described
Lid generally circular plate structure, one end is in contact with axial end, and other end is corresponding with three threaded holes of shaft end
If being equipped with the axially extending bore passed through for bolt in the middle part of each boss there are three boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751329.4A CN110316218A (en) | 2019-08-15 | 2019-08-15 | A kind of high-speed railway axle box bearing bolts at axle end anti-loose structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751329.4A CN110316218A (en) | 2019-08-15 | 2019-08-15 | A kind of high-speed railway axle box bearing bolts at axle end anti-loose structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110316218A true CN110316218A (en) | 2019-10-11 |
Family
ID=68126159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910751329.4A Pending CN110316218A (en) | 2019-08-15 | 2019-08-15 | A kind of high-speed railway axle box bearing bolts at axle end anti-loose structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110316218A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877623A (en) * | 2019-11-27 | 2020-03-13 | 中车山东机车车辆有限公司 | Shaft end connecting device, wheel pair assembly and railway vehicle |
| WO2024040709A1 (en) * | 2022-08-25 | 2024-02-29 | 瓦房店轴承集团有限责任公司 | Bearing front sealing device having observation hole |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1204014A (en) * | 1967-11-20 | 1970-09-03 | Timken Roller Bearing Co | Locking plate for an axle bearing assembly |
| US4015874A (en) * | 1975-09-09 | 1977-04-05 | Hennessy Products, Incorporated | Railway axle end cap screw locking device |
| CN102414458A (en) * | 2009-05-08 | 2012-04-11 | B.A.贝内特 | Locking retainer for threaded fasteners |
| CN102893162A (en) * | 2010-04-30 | 2013-01-23 | Ntn-Snr轴承公司 | Instrumented assembly and associated locking plate |
| CN202991788U (en) * | 2012-12-17 | 2013-06-12 | 福建源鑫环保科技有限公司 | Locking device for bearing pedestal end cover of roller swing arm |
| CN203516383U (en) * | 2013-10-29 | 2014-04-02 | 丁士林 | Locking bolt-nut component |
| CN107054394A (en) * | 2015-11-13 | 2017-08-18 | 斯凯孚公司 | For the railcar adapter for making track vehicle main body be connected with bearing |
| CN108916198A (en) * | 2018-07-06 | 2018-11-30 | 江西洪都航空工业集团有限责任公司 | A kind of threaded anti-loosing structure |
| CN210653122U (en) * | 2019-08-15 | 2020-06-02 | 洛阳Lyc轴承有限公司 | Axle box bearing axle head bolt anti loosening structure of high speed railway |
-
2019
- 2019-08-15 CN CN201910751329.4A patent/CN110316218A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1204014A (en) * | 1967-11-20 | 1970-09-03 | Timken Roller Bearing Co | Locking plate for an axle bearing assembly |
| US4015874A (en) * | 1975-09-09 | 1977-04-05 | Hennessy Products, Incorporated | Railway axle end cap screw locking device |
| CN102414458A (en) * | 2009-05-08 | 2012-04-11 | B.A.贝内特 | Locking retainer for threaded fasteners |
| CN102893162A (en) * | 2010-04-30 | 2013-01-23 | Ntn-Snr轴承公司 | Instrumented assembly and associated locking plate |
| CN202991788U (en) * | 2012-12-17 | 2013-06-12 | 福建源鑫环保科技有限公司 | Locking device for bearing pedestal end cover of roller swing arm |
| CN203516383U (en) * | 2013-10-29 | 2014-04-02 | 丁士林 | Locking bolt-nut component |
| CN107054394A (en) * | 2015-11-13 | 2017-08-18 | 斯凯孚公司 | For the railcar adapter for making track vehicle main body be connected with bearing |
| CN108916198A (en) * | 2018-07-06 | 2018-11-30 | 江西洪都航空工业集团有限责任公司 | A kind of threaded anti-loosing structure |
| CN210653122U (en) * | 2019-08-15 | 2020-06-02 | 洛阳Lyc轴承有限公司 | Axle box bearing axle head bolt anti loosening structure of high speed railway |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877623A (en) * | 2019-11-27 | 2020-03-13 | 中车山东机车车辆有限公司 | Shaft end connecting device, wheel pair assembly and railway vehicle |
| WO2024040709A1 (en) * | 2022-08-25 | 2024-02-29 | 瓦房店轴承集团有限责任公司 | Bearing front sealing device having observation hole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106286559B (en) | Interior threaded part, externally threaded item and gasket part | |
| JP2011231927A (en) | Concave-convex shapes on bolts and nuts to minimize bending | |
| AU2016235526B2 (en) | Steering knuckles with integrated brake mounting provisions | |
| CN110316218A (en) | A kind of high-speed railway axle box bearing bolts at axle end anti-loose structure | |
| JP2014500444A (en) | Shape lock connection to correct position error | |
| EP3080464A1 (en) | Screw element having a tool engagement portion | |
| US20080196791A1 (en) | Tree stump grinding teeth | |
| CN203548499U (en) | Fastening assembly and vehicle with same | |
| CA2605807A1 (en) | Axial flow hydraulic turbine with fixed blades bolted-on | |
| CN210653122U (en) | Axle box bearing axle head bolt anti loosening structure of high speed railway | |
| CN202851563U (en) | Connecting and fastening structure of sheet metal parts | |
| US8235669B2 (en) | Axial flow hydraulic turbine with blade mounting | |
| CN204451891U (en) | A kind of four-wheel aligner regulating mechanism | |
| CN208311225U (en) | A kind of steady automobile wheel hub bolt | |
| CN109612347B (en) | Quick release structure for missile wing | |
| CN113606238A (en) | Symmetrical slotting locknut structure and locknut locking method | |
| CN207093541U (en) | Welded type screw retention set | |
| CN107781389A (en) | A kind of electric dipper slewing gear fixing structure | |
| CN207647953U (en) | A kind of axis head nut | |
| CN202326621U (en) | Supporting plate self-locking nut | |
| CN216812482U (en) | Bolt and nut combined anti-loose mechanism | |
| CN207364074U (en) | A kind of captive screw mounting structure | |
| CN206175450U (en) | A locking device for fastener | |
| CN110821938A (en) | Anti-loosening fastening bolt | |
| JP6017288B2 (en) | Nut rotation suppression structure |
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 |