CN104527703A - Rail car axle box rear cover structure, axle box and axle box mounting method - Google Patents
Rail car axle box rear cover structure, axle box and axle box mounting method Download PDFInfo
- Publication number
- CN104527703A CN104527703A CN201410712590.0A CN201410712590A CN104527703A CN 104527703 A CN104527703 A CN 104527703A CN 201410712590 A CN201410712590 A CN 201410712590A CN 104527703 A CN104527703 A CN 104527703A
- Authority
- CN
- China
- Prior art keywords
- bonnet
- axle box
- rear cover
- mount pad
- casing
- 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
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
- B61F15/26—Covers; Sealing thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention relates to a rail car axle box rear cover structure, an axle box and an axle box mounting method. The axle box comprises a front cover, a box body, a rear cover, a bearing and a location node. An axle hole is formed in the center of the rear cover, mounting holes for fixing and mounting are formed in the rear cover, and the rear cover is formed by opposite snapping fixed connection of a first rear cover body and a second rear cover body. The rear cover is in a split structure, the rear cover is formed by fixed connection of the first rear cover body and the second rear cover body which are in opposite snapping connection, and accordingly, assembly and disassembly during maintenance are facilitated, time and labor are saved, and the work efficiency can be improved greatly.
Description
Technical field
The present invention relates to a kind of rail car axle box, particularly a kind of rail car axle box rear cover structure and employ the axle box of this rear cover structure, also relate to the installation method of this axle box simultaneously, belong to guideway vehicle manufacturing technology field.
Background technology
The bogie truck of guideway vehicle is provided with forward and backward two groups of wheels right, arrange axle box to the two ends of central rotating shaft often organizing wheel, take turns and install architecturally with axle box, take turns right axletree two ends through bearing, bearing is fixed in axle box.Axle box is made up of journal box body, protecgulum and bonnet, and protecgulum is fixedly connected with middle journal box body respectively by bolt with bonnet, and the centre hole inner ring of bonnet has hermetically-sealed construction, and is tightly connected between axletree.
Due to the restriction that vehicle itself requires, journal box rear cover design space is narrow and small, and as adopted the rear cover structure of traditional integral type, structure space demand is comparatively large, and make the Assembly &Disassembly of axle box very inconvenient, waste time and energy, work efficiency is lower.
Summary of the invention
Main purpose of the present invention is to solve the problem and deficiency, provides a kind of easy installation and removal, the rail car axle box rear cover structure of increasing work efficiency.
Main purpose of the present invention is also, provides a kind of easy installation and removal, the axle box of increasing work efficiency and axle box installation method.
For achieving the above object, technical scheme of the present invention is:
A kind of rail car axle box rear cover structure, comprise bonnet, the center covered in the rear has axis hole, covers in the rear and offers for hard-wired mounting hole, and described bonnet is connected to form by be fastened relative with the second bonnet of the first bonnet.
Further, the docking site of described first bonnet and the second bonnet is provided with the first mount pad and the second mount pad that match, is fixedly connected with between described first mount pad and the second mount pad by fastener.
Further, described first mount pad and the second mount pad are provided with the location structure cooperatively interacted.
Further, described location structure is that correspondence is arranged on positioning convex on described first mount pad and the second mount pad and locating groove.
Further, described bonnet comprises back shroud and the flange outwardly along axis hole periphery, and described first mount pad and the second mount pad are arranged on the outside of described flange.
Further, the inwall of described bonnet central shaft hole is provided with labyrinth seal groove structure.
Further, described first bonnet and the/the second bonnet are provided with outwardly lifting nose.
Further, described lifting nose and the first bonnet or the second bonnet integrally manufactured shaping.
Another technical scheme of the present invention is:
A kind of axle box, comprise protecgulum, casing, bonnet, bearing and location node, described bonnet is above-described structure.
Another technical scheme of the present invention is:
An installation method for axle box, comprises the steps:
A, the first bonnet and the second bonnet to be enclosed within axletree respectively, with fastener, the first bonnet and the second bonnet to be carried out pretension;
B, bearing set is contained on the axle journal of axletree;
C, casing is sleeved on bearing;
D, by the first bonnet and the second bonnet fastening further, be assembled into complete bonnet;
E, push casing, make casing be adjacent to bonnet;
F, by hold-down bolt, bonnet to be fixedly connected with casing;
G, protecgulum to be fixedly connected with casing.
To sum up content, a kind of rail car axle box rear cover structure of the present invention, axle box and axle box installation method, compared with prior art, tool has the following advantages:
(1) bonnet of the present invention adopts split-type structural, and bonnet is fixedly connected to form by two the first bonnets be relatively fastened and connected and the second bonnet, dismounting when being conducive to repair and maintenance and assembling, time saving and energy saving, can significantly increase work efficiency.
(2) one-body molded lifting structure on bonnet, bonnet is utilized to realize the integral lifting function of bogie truck, eliminate arrange in prior art be exclusively used in bogie truck lifting play the structure such as flap seat, simplify the structure of bogie truck lifting, also save the structure space of bogie truck.
(3) actv. make use of wheel and is small space between journal box spring, has dodged the range of movement that is journal box spring and wheel, has made structure compacter.
Accompanying drawing explanation
Fig. 1 is journal box body structural representation of the present invention;
Fig. 2 is journal box body structure cutaway view of the present invention;
Fig. 3 is rear cover structure schematic diagram of the present invention;
Fig. 4 is rear cover structure cutaway view of the present invention;
Fig. 5 is the structural representation after bonnet of the present invention is assembled lifting with wheel;
Fig. 6 is that the present invention takes turns lifting structural representation.
As shown in Figures 1 to 6, casing 1, protecgulum 2, bonnet 3, first bonnet 3a, second bonnet 3b, bearing 4, location node 5, one is journal box spring 6, journal box spring mount pad 7, installation portion 8, rubber pad 9, through hole 10, boss 11, seal ring 12, labyrinth seal structure 13, wheel nave 14, axle journal 15, rear back-up ring 16, vertical damper mount pad 17, lid 18, mounting flange 19, opening 20, cover plate 21, axis hole 22, mounting hole 23, first mount pad 24, second mount pad 25, bolt 26, back shroud 27, flange 28, cambered surface 29, positioning convex 30, locating groove 31, hold-down bolt 32, locking iron wire 33, salient 34, install protruding 35, groove 36 is installed, axletree 37, lifting nose 38, framework 39, flap seat 40, bolt 41, square orifice 42.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As depicted in figs. 1 and 2, the invention provides a kind of axle box be arranged on guideway vehicle, comprise casing 1, protecgulum 2, bonnet 3, bearing 4 and location node 5, wherein, casing 1 is positioning arm formula casing, one of bogie truck is be fixed on casing 1 bottom journal box spring 6, one is that the top of journal box spring 6 and the framework of bogie truck are fixed, bearing 4 is arranged on the inside of casing 1, bearing 4 is sleeved on the periphery of axletree 37, location node 5 and framework are fixed, casing 1 is also provided with vertical damper mount pad 17, vertical damper mount pad 17 is connected with vertical damper (not shown), the top of vertical damper is connected with framework.
A journal box spring mount pad 7 protruding upward above casing 1, one is that journal box spring 6 adopts two round steel spring, be made up of the inner spring connected together and outer spring, one is that journal box spring 6 centre bottom has installation portion 8, installation portion 8 is fixed by screws on journal box spring mount pad 7, one is be provided with rubber pad 9 between journal box spring 6 and casing 1, and rubber pad 9 is formed by the rubber integrated vulcanizing of upper and lower two metal foils and centre.The center of rubber pad 9 has through hole 10, journal box spring mount pad 7 passes from through hole 10, a round ring boss 11 is protruded downwards in the bottom centre of installation portion 8, and the part of boss 11 fastens between the inwall and the outer wall of journal box spring mount pad 7 of the central through hole 10 of rubber pad 9.
As shown in Figure 2, protecgulum 2 is fixedly connected with the leading section of casing 1, and protecgulum 2 is made up of lid 18 and mounting flange 19, and mounting flange 19 and one end of lid 18 are fixedly connected with or make one, are fixed together between protecgulum 2 and casing 1 by mounting flange 19.Be provided with opening 20 at the sidepiece of protecgulum 2, be provided with a cover plate 21 at opening 20 place, cover plate 21 is serum caps, for when vehicle is put in storage, opens cover plate 21 and checks axle head inner case, detects and has appearance without exception.
As shown in Figure 2, Figure 3 and Figure 4, bonnet 3 is fixedly connected with the rearward end of casing 1, at the center of bonnet 3, there is axis hole 22, bonnet 3 comprises back shroud 27, along axis hole 22 periphery, there is outwardly flange 28 in the outside of back shroud 27, have the salient 34 of outwardly annular along axis hole 22 periphery in the inner side of back shroud 27, back shroud 27, flange 28 and salient 34 are formed in one structure.
Four angles of back shroud 27 offer four for hard-wired mounting hole 23, by hold-down bolt 32, casing 1 and bonnet 3 are fixed together at each mounting hole 23 place.In order to prevent vehicle hold-down bolt 32 in operational process from loosening, hold-down bolt 32 is provided with locking iron wire 33.
Casing 1 and bonnet 3 are the parts of geo-stationary, in junction, static seal is set, back shroud 27, salient 34 are together with the edge card of casing 1, one circle O-ring seals 12 is set in this junction, realize the sealing between bonnet 3 and casing 1, guarantee two way seal inside and outside casing 1, the foreign matters such as anti-sealing, ash enter.
Back-up ring 16 after axle journal 15 place of axletree 37 fixed installation one, rear back-up ring 16 has dust-proof effect, rear back-up ring 16 is fixed with axle journal 15 interference fit, rear back-up ring 16 is with axletree 37 High Rotation Speed, and bonnet 3 is stationary parts, and the inwall of the axis hole 22 of bonnet 3 is provided with labyrinth seal structure 13, realize trend by labyrinth seal structure 13 between bonnet 3 and rear back-up ring 16 to seal, prevent bearing oil from revealing, and prevent foreign from entering, realize dynamic bidirectional sealing function.The outside face of rear back-up ring 16 has the installation projection 35 that outwardly section is the annular of inverted L-shaped, on axis hole 22 inwall of back shroud 27, be correspondingly provided with the installation groove 36 of annular, installing protruding 35 grafting fixes in installation groove 36, axis hole 22 madial wall and install groove 36 madial wall on be respectively arranged with three and two seal grooves (not indicating in figure), in seal groove, sealing material is installed, five seal grooves and sealing material form labyrinth seal structure 13, and sealing material and rear back-up ring 16 fit tightly the sealing formed between bonnet 3 and axletree 37.
In the present embodiment, bonnet 3 is connected to form with relative being fastened of the second bonnet 3b by the first bonnet 3a of symmetrical configuration, the first bonnet 3a and the second bonnet 3b has respectively above-mentioned flange 28, salient 34 and installs the structures such as groove 36.
The docking site of the first bonnet 3a and the second bonnet 3b is provided with the first mount pad 24 and the second mount pad 25 matched, first mount pad 24 and the second mount pad 25 are arranged on the upper and lower surfaces of bonnet 3, the bolt hole that first mount pad 24 and the second mount pad 25 are oppositely arranged, be fixedly connected with respectively by bolt 26 between upper and lower two the first mount pads 24 and the second mount pad 25, so realize the first bonnet 3a and the second bonnet 3b be fixedly connected to form complete bonnet 3.
In the present embodiment, first mount pad 24 and the second mount pad 25 are arranged on the outside of flange 28, lower than the height of the first mount pad 24 and the second mount pad 25 at the bottom of the edge height of back shroud 27, the range of movement that one is journal box spring 6 can be abdicated like this, in addition, the outer ring of flange 28, the side be namely connected with wheel nave 14 has the cambered surface 29 concaved, abdicate the position contacted with wheel nave 14, and between the outside of bonnet 3 and wheel nave 14, there is certain distance.It is small space between journal box spring 6 that this structure makes the installation actv. of bonnet 3 make use of wheel nave 14 and, the installation of the first mount pad 24 and the second mount pad 25 is not only made to avoid the range of movement that is journal box spring 6 and wheel nave 14, relieving one is that journal box spring 6 rises and falls space constraint, and the Assembly &Disassembly of convenient bonnet 3, when covering 3 after removal, bonnet 3 is moved a certain distance to wheel nave 14 direction, bonnet 3 is extracted out from casing 1, first bonnet 24 and the second bonnet 25 can be pulled down respectively from the both sides of axletree 37, then contrary to the above during installation bonnet 3.
Bonnet 3 adopts split-type structural, be conducive to axle box in the dismounting of repair and maintenance and assembling, and bonnet 3 can realize independent Assembly &Disassembly, time saving and energy saving, significantly can improve work efficiency during axle box Assembly &Disassembly.Whether as when bonnet 3 finds that there is oil stain with axletree 37 place, just bonnet 3 can be disassembled separately, observing is that labyrinth seal structure or matching part go wrong.In addition, bonnet 3 adopts Split type structure, also bearing 4 for convenience detach.When each dismounting bearing 4, all need first bonnet 3 to be taken away separately, because the rear back-up ring 16 coordinated with bonnet 3 interference to be pressed on axletree 37, then the labyrinth seal structure of bonnet 3 coordinates formative dynamics to seal with rear back-up ring 16, because the position relationship of rear back-up ring 16 and bonnet 3 and structure space limit, when rear back-up ring 16 needs dismounting, need enough axial spaces, can bonnet 3 be moved rearward, then frock is utilized to be backed off by rear back-up ring 16, but the axletree end of guideway vehicle arrange be blood sure can not allow so long axial space realize only one move back the effect of unloading.So, split type bonnet 3 is adopted just to serve good effect, when dismantling, first bonnet 3 is separated axletree 37, reserve enough spaces, then with drawing horse one end to withstand shaft end, the other end holds rear back-up ring 16, oil pump pressurizes, and so just rear back-up ring 16 and bearing 4 together can be backed off, convenient and swift.
As shown in Figure 3, conveniently install, ensure setting accuracy, the first mount pad 24 and the second mount pad 25 are provided with the location structure cooperatively interacted.In the present embodiment, location structure is the locating groove 31 that correspondence is arranged on the positioning convex 30 on the first mount pad 24 and is arranged on the second mount pad 25, and positioning convex 30 stretches out to side in the horizontal direction, and bolt 26 is fixedly connected with from laterally through bolt hole.This location structure can stop the relative motion between the first bonnet 24 and the second bonnet 25, causes bolt 26 by shearing force, bolt 26 is played to the effect of protection.
As shown in Figure 3, first bonnet 24 is provided with outwardly lifting nose 38, lifting nose 38 and the first bonnet 24 is integrally manufactured shaping, lifts by crane nose 38 and also can be arranged on the second bonnet 25, also can respectively stretch out one in the both sides of the first bonnet 24 and the second bonnet 25.
As shown in Figure 4, the framework 39 of bogie truck is fixedly connected with a flap seat 40, be fixedly connected with by bolt 41 between flap seat 40 with framework 39, as shown in Figure 5, flap seat 40 offers a square orifice 42, lifting nose 38 is inserted in square orifice 42, when usual vehicle normally runs, lifting nose 38 is positioned at the center of square orifice 42, do not contact with flap seat 40, and at needs to bogie truck and when taking turns integral lifting, when bogie truck is lifted and moves up, flap seat 40 and then moves up, lifting nose 38 and flap seat 40 are abutted together, and then related lifting nose 38 and bonnet 3 are upwards sling together, realize the integral lifting that bogie truck is right with wheel, save structure space, safe and reliable.
In the present embodiment; first mount pad 24 and the second mount pad 25 are arranged on the upper and lower surfaces of bonnet 3; and the positioning convex 30 on upper and lower two the first mount pads 24 stretches out to side in the horizontal direction; install except positioning function except having; the effect of vertical backstop and auxiliary lifting can also be played when lifting by crane; the relative motion between the first bonnet 24 and the second bonnet 25 can be stoped, cause bolt 26 by shearing force, bolt 26 is played to the effect of protection.
Be described below in detail the installation method of axle box, specifically comprise the steps:
A, the first bonnet 24 and the second bonnet 25 are enclosed within axletree 37 respectively, with two bolts 26, first bonnet 24 and the second bonnet 25 are carried out pretension.
B, bearing 4 to be assembled on the axle journal 15 of axletree 37.
C, casing 1 to be sleeved on bearing 4.
D, by fastening further for two bolts 26 up and down of the first bonnet 24 and the second bonnet 25, be assembled into complete bonnet 3.
E, push casing 1, make casing 1 be adjacent to bonnet 3, the now compacted sealing realized between casing 1 and bonnet 3 of seal ring 12, is tightly connected by labyrinth seal structure 13 between rear back-up ring 16 and bonnet 3, realizes the sealing between bonnet 3 and axletree 37.
F, by hold-down bolt 32, bonnet 3 to be fixedly connected with casing 1, more finally to install locking iron wire 33.
G, protecgulum 2 and casing 1 to be fixed together by mounting flange 19.
Be described below in detail the method for dismounting of axle box, specifically comprise the steps:
A, protecgulum 2 to be disassembled from casing 1.
B, the hold-down bolt of four on bonnet 3 32 to be screwed out.
C, successively dismounting casing 1 and bearing 4.
D, again two bolts 26 on the first mount pad 24 and the second mount pad 25 to be disassembled, the first bonnet 24 and the second bonnet 25 are taken apart respectively to both sides, completes bonnet 3 and dismantle.
When needing pull down separately bonnet 3 or need first to dismantle bonnet 3, first the hold-down bolt of four on bonnet 3 32 is screwed out, first bonnet 24 and the second bonnet 25 are moved a certain distance to wheel nave 14 direction, the salient 34 of bonnet 3 is extracted out from casing 1, again two bolts 26 up and down of the first bonnet 24 and the second bonnet 25 are outwarded winding, finally the first bonnet 24 and the second bonnet 25 are pulled down respectively from the both sides of axletree 37, namely complete the independent dismounting of bonnet 3.
As mentioned above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a rail car axle box rear cover structure, comprise bonnet, the center covered in the rear has axis hole, covers in the rear and offers for hard-wired mounting hole, it is characterized in that: described bonnet is connected to form by be fastened relative with the second bonnet of the first bonnet.
2. rail car axle box rear cover structure according to claim 1, it is characterized in that: the docking site of described first bonnet and the second bonnet is provided with the first mount pad and the second mount pad that match, is fixedly connected with between described first mount pad and the second mount pad by fastener.
3. rail car axle box rear cover structure according to claim 2, is characterized in that: on described first mount pad and the second mount pad, be provided with the location structure cooperatively interacted.
4. rail car axle box rear cover structure according to claim 3, is characterized in that: described location structure is that correspondence is arranged on positioning convex on described first mount pad and the second mount pad and locating groove.
5. rail car axle box rear cover structure according to claim 2, is characterized in that: described bonnet comprises back shroud and the flange outwardly along axis hole periphery, and described first mount pad and the second mount pad are arranged on the outside of described flange.
6. rail car axle box rear cover structure according to claim 1, is characterized in that: the inwall of described bonnet central shaft hole is provided with labyrinth seal groove structure.
7. the rail car axle box rear cover structure according to any one of claim 1 to 6, is characterized in that: on described first bonnet and the/the second bonnet, be provided with outwardly lifting nose.
8. rail car axle box rear cover structure according to claim 7, is characterized in that: described lifting nose and the first bonnet or the second bonnet integrally manufactured shaping.
9. an axle box, comprises protecgulum, casing, bonnet, bearing and location node, it is characterized in that: described bonnet is the structure as described in any one of claim 1-8.
10. an axle box installation method, is characterized in that, comprises the steps:
A, the first bonnet and the second bonnet to be enclosed within axletree respectively, with fastener, the first bonnet and the second bonnet to be carried out pretension;
B, bearing set is contained on the axle journal of axletree;
C, casing is sleeved on bearing;
D, by the first bonnet and the second bonnet fastening further, be assembled into complete bonnet;
E, push casing, make casing be adjacent to bonnet;
F, by hold-down bolt, bonnet to be fixedly connected with casing.
G, protecgulum to be fixedly connected with casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712590.0A CN104527703B (en) | 2014-11-28 | 2014-11-28 | A kind of rail car axle box rear cover structure, axle box and axle box installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712590.0A CN104527703B (en) | 2014-11-28 | 2014-11-28 | A kind of rail car axle box rear cover structure, axle box and axle box installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527703A true CN104527703A (en) | 2015-04-22 |
| CN104527703B CN104527703B (en) | 2017-10-31 |
Family
ID=52843418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410712590.0A Active CN104527703B (en) | 2014-11-28 | 2014-11-28 | A kind of rail car axle box rear cover structure, axle box and axle box installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527703B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109178014A (en) * | 2018-08-08 | 2019-01-11 | 中车青岛四方机车车辆股份有限公司 | Wheel is to lift and with its bogie |
| CN112622970A (en) * | 2020-12-29 | 2021-04-09 | 济南巨鑫机车车辆配件有限公司 | Positioning device for K2 bearing saddle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11315843A (en) * | 1998-05-06 | 1999-11-16 | Nachi Fujikoshi Corp | Shaft seal device |
| CN2516416Y (en) * | 2002-01-06 | 2002-10-16 | 郑州铁路新科机车车辆配件有限公司 | Locomotive gearbox with end sealed |
| CN2720193Y (en) * | 2004-08-09 | 2005-08-24 | 李福山 | Anti-theft sealing end cap of speed-reducing box bush |
| CN201214429Y (en) * | 2008-08-05 | 2009-04-01 | 铁道部运输局 | Axle-box with self-sealing bearing and baffle edge |
| CN201769828U (en) * | 2010-08-28 | 2011-03-23 | 中国北车集团大连机车车辆有限公司 | Rolling axle suspension bearing box for bogie |
| CN202743261U (en) * | 2012-09-07 | 2013-02-20 | 株洲奥凯精密机电有限公司 | Locomotive gearbox |
| CN203580983U (en) * | 2013-10-25 | 2014-05-07 | 广州电力机车有限公司 | Shaft box end cover for eight-shaft electric locomotive steering frame |
| WO2014154259A1 (en) * | 2013-03-27 | 2014-10-02 | Aktiebolaget Skf | Hub unit |
| CN203888819U (en) * | 2014-06-19 | 2014-10-22 | 南车株洲电力机车有限公司 | Urban rail vehicle steering frame shaft box end cover |
| CN204279473U (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | A kind of rail car axle box rear cover structure and axle box |
-
2014
- 2014-11-28 CN CN201410712590.0A patent/CN104527703B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11315843A (en) * | 1998-05-06 | 1999-11-16 | Nachi Fujikoshi Corp | Shaft seal device |
| CN2516416Y (en) * | 2002-01-06 | 2002-10-16 | 郑州铁路新科机车车辆配件有限公司 | Locomotive gearbox with end sealed |
| CN2720193Y (en) * | 2004-08-09 | 2005-08-24 | 李福山 | Anti-theft sealing end cap of speed-reducing box bush |
| CN201214429Y (en) * | 2008-08-05 | 2009-04-01 | 铁道部运输局 | Axle-box with self-sealing bearing and baffle edge |
| CN201769828U (en) * | 2010-08-28 | 2011-03-23 | 中国北车集团大连机车车辆有限公司 | Rolling axle suspension bearing box for bogie |
| CN202743261U (en) * | 2012-09-07 | 2013-02-20 | 株洲奥凯精密机电有限公司 | Locomotive gearbox |
| WO2014154259A1 (en) * | 2013-03-27 | 2014-10-02 | Aktiebolaget Skf | Hub unit |
| CN203580983U (en) * | 2013-10-25 | 2014-05-07 | 广州电力机车有限公司 | Shaft box end cover for eight-shaft electric locomotive steering frame |
| CN203888819U (en) * | 2014-06-19 | 2014-10-22 | 南车株洲电力机车有限公司 | Urban rail vehicle steering frame shaft box end cover |
| CN204279473U (en) * | 2014-11-28 | 2015-04-22 | 南车青岛四方机车车辆股份有限公司 | A kind of rail car axle box rear cover structure and axle box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109178014A (en) * | 2018-08-08 | 2019-01-11 | 中车青岛四方机车车辆股份有限公司 | Wheel is to lift and with its bogie |
| CN109178014B (en) * | 2018-08-08 | 2022-03-29 | 中车青岛四方机车车辆股份有限公司 | Wheel set lifting device and bogie with same |
| CN112622970A (en) * | 2020-12-29 | 2021-04-09 | 济南巨鑫机车车辆配件有限公司 | Positioning device for K2 bearing saddle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104527703B (en) | 2017-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204279473U (en) | A kind of rail car axle box rear cover structure and axle box | |
| CA2842143A1 (en) | Draught fan volute seal structure | |
| CN104527703A (en) | Rail car axle box rear cover structure, axle box and axle box mounting method | |
| CN204279472U (en) | A kind of rail car axle box rear cover structure and axle box | |
| CN206259838U (en) | A kind of wheel hub electric motor of electric vehicle for being provided with waterproof vent valve | |
| CN202209422U (en) | Bearing oil seal | |
| CN208948634U (en) | Outer rotor heavy-duty high speed traction machine | |
| CN202413272U (en) | Motor hub for electric vehicle | |
| CN207790188U (en) | A kind of seperated wheel hub of wheel hub electric motor of electric vehicle | |
| CN204607407U (en) | A kind of with inner sleeve and back-up ring by motor car wheel group | |
| CN208806706U (en) | A kind of spindle motor device | |
| CN206749392U (en) | A kind of minicar rear driving axle wheel hub end structure | |
| CN208571791U (en) | A kind of motor protection device for energy automobile | |
| CN202510407U (en) | Centrifugal compressor and composite bearing support saddle thereof | |
| CN214003112U (en) | Sealing carrier roller | |
| CN204588491U (en) | A kind of with inner sleeve by motor car wheel group | |
| CN205615338U (en) | Dustproof intermediate support assembly | |
| CN206704200U (en) | Labyrinth sealing type rear end cap axle box forms | |
| CN205997961U (en) | A kind of automobile and its transition arm assembly apparatus | |
| CN204899496U (en) | Locking device of automobile body chassis equipment compartment skirtboard | |
| CN204549843U (en) | A kind of adhesion wheel group with outward flange seat and back-up ring | |
| CN216895682U (en) | Sealing and supporting device for bearing seat of gear box | |
| CN206052069U (en) | Cross sliding type sublance walking actuating device | |
| CN104260747A (en) | Connection structure of transmission shaft of brake clamp and lever and clamp casing of brake clamp | |
| CN204607408U (en) | A kind of flanged axle and back-up ring by motor car wheel group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Applicant after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |