CN102358104B - Split type track wheel - Google Patents
Split type track wheel Download PDFInfo
- Publication number
- CN102358104B CN102358104B CN 201110251642 CN201110251642A CN102358104B CN 102358104 B CN102358104 B CN 102358104B CN 201110251642 CN201110251642 CN 201110251642 CN 201110251642 A CN201110251642 A CN 201110251642A CN 102358104 B CN102358104 B CN 102358104B
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- positioning boss
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Abstract
The invention provides a split type track wheel which is provided with a cylindrical wheel core, where the axial lead of the wheel core is provided with an installation through hole in a penetrating manner, at least one annular wheel body used for simulating a steel track is sleeved on the wheel core, the side surface of the wheel core, corresponding to the wheel body, is provided with a position lug boss which is used for axially stopping the wheel body, the surface of the positioning lug boss, which faces towards the wheel body, is in tightly contact with the end face of the wheel body; and the surface of the positioning lug boss, which is in contact with the wheel body, is provided with a plurality of threaded holes, and first bolts penetrating through the wheel body and being respectively screwed into the threaded holes are used for fixedly connecting the wheel body with the wheel core together. The split type track wheel provided by the invention is replaced by only screwing the bolts for disassembly and re-installing the wheel body, thus the matching of an injection press in the prior art is saved. Meanwhile, because of needing less materials for manufacturing the wheel body, the waste materials due to the discarded track wheel are reduced, and the maintenance cost of the whole test stand is reduced.
Description
Technical field
The present invention relates to the rolling stock test technology, relate in particular to a kind of split type rail wheel.
Background technology
When the correlated performance of research train braking, usually utilize the train braking property test platform to simulate the train braking process, because space constraint adopts the rotation of circular rail wheel to simulate " rail of endless " usually on the train braking property test platform.
Fig. 1 is the train braking property test platform of the prior art rail wheels that use more.As shown in Figure 1, this rail wheel 10 is the thick slightly disk in a center, the shape of all sides of this disk is identical with the surface profile of rail, rail wheel 10 centers offer mounting hole 11, wheel shaft is arranged in mounting hole 11 by interference fit, the two ends of wheel shaft are by bearings, and under the power end of train braking property test platform drove, wheel shaft was with the line of centers rotation of rail wheel 10 around wheel shaft.
What this rail wheel of prior art adopted is one-piece construction, like this, when needing to change because of wearing and tearing, need to cooperate the oiling compression machine to dismantle in the side of rail wheel, and need adopt hot charging or oiling to press-fit equally and finish reinstalling of wheel shaft and mounting hole 11, very inconvenient; And, this rail wheel when changing, replacing be the whole rail wheel, the rail wheel of changing has just become useless part, has wasted material greatly, thereby makes the maintenance cost of whole test platform higher; In addition, this integral rail wheel must cut off or will just can take off after equipment such as the bearing seat dismounting of installing on the axle, also must be so during installation, and this dismounting has often destroyed original setting accuracy, and the work capacity of reinstalling is very big, and difficulty is higher.
Summary of the invention
The invention provides a kind of split type rail wheel,, realize changing easily and efficiently the rail wheel in the train braking property test platform in order to solve defective of the prior art.
The invention provides a kind of split type rail wheel, described rail wheel has a columned core wheel, axial line along described core wheel is equipped with the installation through hole, be arranged with the ring-type wheel body that at least one is used to simulate rail on the described core wheel, described core wheel side is provided with the positioning boss that is used for the described wheel body of axial stop corresponding to described wheel body, and described positioning boss is towards the surface of described wheel body and the cooresponding end face closed contact of described wheel body; Offer a plurality of tapped bore on described positioning boss and the contacted surface of described wheel body, pass the described wheel body and first bolt that is bolted in respectively in the described tapped bore described wheel body and described core wheel are fixed together.
Split type rail wheel provided by the invention, be fixed together by core wheel and wheel body are spirally connected form one can be for the rail wheel that uses in the train braking property test platform, make when rail wheel needs to change because of wearing and tearing, only need to get final product by screwing Bolt dismantling and reinstalling wheel body, saved the cooperation of indispensable oiling compression machine in the prior art, and do not need to remove the miscellaneous equipment on the axle, do not destroy original setting accuracy, easy installation and removal.Simultaneously, to reduce a lot, thereby also reduce, reduce the maintenance cost of whole test platform because of the discarded material of wasting of rail wheel owing to make the materials of wheel body.
Description of drawings
Fig. 1 is the train braking property test platform of the prior art rail wheels that use more.
Fig. 2 is the front view of split type rail wheel one embodiment of the present invention.
Fig. 3 is along the cutaway view of A-A line among Fig. 2.
Fig. 4 is the front view of wheel body among Fig. 3.
Fig. 5 be among Fig. 4 B-B to view.
Fig. 6 is the front view of one fen wheel body in the split type rail wheel of the present invention.
Fig. 7 is the lateral plan of Fig. 6.
Fig. 8 be with Fig. 6 in the branch wheel body splice mutually another minute wheel body front view.
Fig. 9 is the lateral plan of Fig. 8.
Reference numeral:
The 10-rail wheel; The 11-mounting hole; The 2-core wheel;
21-installs through hole; The 22-positioning boss; The 23-connecting portion;
The 24-groove; The 5-air extractor vent; The 221-tapped bore;
The 222-keyway; The 223-key; The 3-wheel body;
The 41-pad; 32-divides wheel body; 4-first bolt;
The 25-projection; The 211-technology groove; The 6-wheel shaft;
321-splices groove; The 51-locating dowel pin; 52-second bolt;
322-splices projection.
The specific embodiment
Further specify the technical scheme of the embodiment of the invention below in conjunction with the drawings and specific embodiments.
" side " of said core wheel of the present invention or wheel body is meant the occluding surface in the form of a ring of forming wheel body or core wheel." side " is meant plane or the curved surface that is positioned at these two ends, side.
Fig. 2 is the front view of split type rail wheel one embodiment of the present invention.Fig. 3 is along the cutaway view of A-A line among Fig. 2.Please refer to Fig. 2 and Fig. 3, present embodiment provides a kind of split type rail wheel, described rail wheel has a columned core wheel 2, axial line along core wheel 2 is equipped with installation through hole 21, be arranged with the ring-type wheel body 3 that at least one is used to simulate rail on the core wheel 2, core wheel 2 sides are provided with the positioning boss 22 that is used for axial stop wheel body 3 corresponding to wheel body 3, and positioning boss 22 is towards the surface of wheel body 3 and the end face closed contact of cooresponding wheel body 3; Offer a plurality of tapped bore 221 on positioning boss 22 and the wheel body 3 contacted surfaces, pass wheel body 3 and first bolt 4 that is bolted in respectively in the tapped bore 221 is fixed together wheel body 3 and core wheel 2.
Particularly, it is circular that wheel body 3 can be, and the shape of the size of these wheel body 3 sides and two ends end face and the side of wheel body 3 can specifically be set according to the rail of need simulation.According to the requirement of braking performance test test, can sheathed one or more wheel bodys 3 on the side of core wheel 2, the quantity of positioning boss 22 and concrete structure can be determined according to the quantity of wheel body 3; For example, when needs on core wheel 2 during sheathed one or two wheel body 3, core wheel 2 can be arranged to have the structure of a positioning boss 22, for example this positioning boss 22 can be the cyclic structure that is formed on the core wheel 2 side circumference, or be in core wheel 2 sides a plurality of discontinuous block-shaped protrusion along circumferential arrangement, as long as guarantee to play the effect of axial stop, so that wheel body 3 can be resisted against this positioning boss 22 is other to being set in wheel body 3 on the core wheel 2; Further, when the sheathed wheel body 3 of need, wheel body 3 can be set in one side of positioning boss 22, and positioning boss 22 is complementary towards the surface of positioning boss 22 1 sides (end face of wheel body 3) shape towards the surface configuration and the wheel body 3 of wheel body 3 one sides, so that positioning boss 22 is towards the surface of wheel body 3 and the cooresponding end face of wheel body 3 (wheel body 3 is towards the surface of positioning boss 22) closed contact, when sheathed two wheel bodys 3 of need, two wheel bodys 3 can be set in the both sides of positioning boss 22 respectively, positioning boss 22 two ends are complementary towards the end face of the wheel body 3 of the surface of different wheel bodys 3 and this side respectively so that on the positioning boss 22 respectively towards two surfaces of two wheel bodys 3 and the end face closed contact of cooresponding wheel body 3.Can be on positioning boss 22 and wheel body 3 contacted surfaces and offer a plurality of tapped bore 221 around the axial line of core wheel 2, corresponding respectively tapped bore 221 is offered a plurality of through holes or tapped through hole on wheel body, so that first bolt 4 passes through hole respectively or tapped through hole is screw-coupled to wheel body 3 on the positioning boss 22, thereby realize captiveing joint of wheel body 3 and core wheel 2.
Certainly, when need be on the core wheel 2 sheathed three or more wheel body 3 of braking performance test test, also core wheel 2 can be arranged to have the structure of two or more positioning boss 22, so that one side of each positioning boss 22 or both sides can be used for against wheel body 3 and make positioning boss 22 towards its against the corresponding end face closed contact of surface and this wheel body 3 of wheel body 3, and wheel body 3 is screwed to the positioning boss 22 that is used for against this wheel body 3 by first bolt 4.
The split type rail wheel that present embodiment provides when mounted, wheel shaft 6 is arranged in the installation through hole 21 of core wheel 2 with interference fit, the two ends of wheel shaft 6 are supported on respectively on the bearing seat that is fixedly installed on the test cell, the engine installation of test cell is captiveed joint with wheel shaft 6 and is driven these split type rail wheels with live axle 6 and together rotate, the wheel body 3 of rotation this moment just can be regarded the rail of endless as, and experiment load just can be applied on the side of wheel body 3.When wheel body 3 needs to change because of using wearing and tearing, only need pull down one of them bearing seat of support wheel shaft 6, pull down a plurality of first bolts 4 then, just can be easily wheel body 3 be pulled down and separated with test cell via an end of wheel shaft 6 from core wheel 2; Again the end (bearing seat of this end remove) of new wheel body 3 by wheel shaft 6 is set on the core wheel 2, utilizes a plurality of first bolts 4 that wheel body 3 and core wheel 2 are tightened together again and get final product.
As seen, the split type rail wheel of present embodiment can replace the rail of integral rail wheel simulation endless of the prior art, and when changing, need not to dismantle and reset by the oiling compression machine, change wheel body as long as screw bolt, greatly facilitate the replacing operation of rail wheel, improved efficient; In addition, because the materials being fabricated of ring-type wheel body still less, thereby the waste because of the discarded material that causes of rail wheel, the maintenance cost that helps saving the train braking property test platform have also been reduced.
In an embodiment of the present invention, as shown in Figures 2 and 3, the side of core wheel 2 is formed with the connecting portion 23 that is positioned at two ends and the positioning boss 22 at middle part, the side of connecting portion 23 and positioning boss 22 is the face of cylinder, the diameter of positioning boss 22 is greater than the diameter of connecting portion 23 and less than the external diameter of wheel body 3, to prevent to disturb the various test operations to wheel body 3 in process of the test; Wheel body 3 is two, be set in respectively on the connecting portion 23 of core wheel outer end, and the opposing end faces of two wheel bodys 3 respectively with the two ends end face closed contact of positioning boss 22, offer a plurality of tapped bore 221 on the end face of positioning boss 22 respectively.Here, core wheel 2 is the big less cylinder of two ends diameter of mid diameter, the middle bigger part of diameter can be used as positioning boss 22, two wheel bodys 3 are set in respectively on the less connecting portion of diameter 23, the two ends end face of positioning boss 22 is respectively towards the wheel body 3 at two ends, and respectively with the end face closed contact of cooresponding wheel body 3, wherein, the end face of the end face of boss and wheel body 3 all can be arranged to the plane; A plurality of tapped bore 221 on the described end face can be coaxial with core wheel 2 circular arrangement, first bolt 4 just is screwed to wheel body 3 respectively on two end faces of positioning boss 22 when passing wheel body 3 and be bolted in the cooresponding tapped bore 221 respectively; Here, loosening in order to prevent bolted connection, also between first bolt 4 and wheel body 3, be provided with pad 41.In the present embodiment, be sheathed two wheel bodys 3 on the core wheel 2 of simple cylinder combination simultaneously, can simulate the rail of two endless simultaneously, saved power, and core wheel also has good fabrication properties on a structure.
In one embodiment of the invention, as Fig. 4, Fig. 6, Fig. 7, Fig. 8 and shown in Figure 9, each wheel body 3 comprises at least two branch wheel body 32, promptly, each divides wheel body 32 to be circular-arc, divide wheel body 32 to be spliced to form wheel body 3, offer splicing groove 321 and splicing projection 322 on two end faces that are used to splice on two adjacent branch wheel bodys 32 respectively, and splicing projection 322 is fastened in the splicing groove 321; Splicing place at adjacent branch wheel body 32 will divide wheel body 32 to be fixed together by at least one second bolt 52 respectively.Particularly, wheel body 3 can have two or more a plurality of minutes wheel bodys 32 head and the tail are spliced, passing through joinery and its construction (i.e. the engaging of splicing projection 322 and splicing groove 321) between two adjacent branch wheel bodys 32 locatees, and it is fixing to utilize one or more second bolts 52 in splicing place two fens adjacent wheel bodys 32 to be spirally connected, thereby guarantees to divide wheel body 32 splicings and be connected to form a wheel body 3 reliably.This wheel body 3 that is made of minute wheel body 32 need not to dismantle and supports the bearing seat of wheel shaft 6 when changing, and only after screwing first bolt 4 of dismantling, second bolt 52 on the wheel body 3 is dismantled just can pull down minute wheel body 3 again; When reinstalling, more can will divide wheel body 32 to be set to one by one on the core wheel 2 easily, by second bolt 52 be spirally connected fixing form wheel body 3 after, be connected with positioning boss 22 by first bolt 4 again.The split type rail wheel of present embodiment does not need to remove the miscellaneous equipments such as bearing on the axle when dismounting and installation, not only made things convenient for the dismounting operation, and can not destroy original setting accuracy; In addition, because wheel body is to be spliced by a minute wheel body in the present embodiment, therefore, overcome the available technology adopting rail material and made the difficulty of ring-type wheel body, can produce circular-arc branch wheel body by rail material, will divide wheel body to be spliced to form wheel body again, thereby obtain the wheel body that rail material is made, the wheel body that utilizes rail material to make is convenient to simulate electromagnetism, heat transfer and mechanical property more, and is strong in the progress of further promotion train braking performance test stand.
In the above-described embodiments, as Fig. 4, Fig. 6 and shown in Figure 8, also be provided with to be used for fixing in splicing place of adjacent branch wheel body 32 and connect the locating dowel pin 51 that divides wheel body 32, the locating dowel pin 51 of can before screwing second bolt 52, packing into earlier, so that the more accurate positioning that bolt is installed, more convenient operation, save time.
In an embodiment of the present invention, as shown in Figures 2 and 3, offer groove 24 on positioning boss 22 and the wheel body 3 contacted end faces, on the end face of wheel body 3 respectively respective slot 24 be provided with projection 25, projection 25 is sticked in the groove 24.Can be earlier play further location core wheel 2 and wheel body 3 by the engaging of groove 24 and projection 25, help increasing wheel body 3 rigidity, make its running more steady.
In the above-described embodiments, groove 24 is an annular groove 24, projection 25 is an annular protrusion 25, the center of circle of annular groove 24 and annular protrusion 25 is positioned on the axial line of core wheel 2, for example annular protrusion 25 can be the flange on the interior circle of ring-type wheel body 3,24 pairs of annular grooves should flange position and size setting, can adopt big footpath to cooperate between annular groove 24 and the annular protrusion 25, with when installation wheel body 3 is to core wheel 2, can further guarantee the right alignment of wheel body 3 and core wheel 2, the stationarity when improving split type rail wheel and rotating; When wheel body 3 was made up of 3 splicings of a plurality of minutes wheel bodys, this structure can also pass to core wheel 2 with the overbalance centnifugal force of minute wheel body 3, avoids second bolt 52 and locating dowel pin 51 to bear shearing force, improves safety greatly.Reliability when further having guaranteed split type rail wheel high speed revolution.
In an embodiment of the present invention, as shown in Figures 2 and 3, offer keyway 222 respectively on the contact surface between positioning boss 22 and the wheel body 3, correspondence is provided with the key 223 that is used to locate wheel body 3 and core wheel 2 in the keyway 222; Wherein, the quantity of key 223 and keyway 222 can be according to concrete test situation design, also can offer top wire hole for convenience detach on the key 223, like this, core wheel 2 and wheel body 3 be spirally connected fixing in, also adopt the key 223 on the contact surface to connect, make this split type rail wheel can transmit bigger brake torque, guaranteed the functional reliability under the various test conditions.
In the above-described embodiments, key 223 is a rectangle, and can be with the radially setting of the length direction of key 223 along wheel body 3, the keyway 222 that is positioned on the wheel body 3 leaves the gap with key 223 on the length direction of rectangle, be the length that the length of the keyway 222 on the wheel body 3 is a bit larger tham key 223, and the length of the keyway 222 on the positioning boss 22 equals the length of key 223, so that when expanded by heating is out of shape, be not subjected to the restriction of key 223 at wheel body 3, avoid producing thermal stress, guarantee that this split type rail wheel can reliable operation under temperature traverse significantly.
In an embodiment of the present invention, as shown in Figure 3, install to offer on the sidewall of through hole 21 and the sidewall of through hole 21 and the technology groove 211 of the length of contact of wheel shaft 6 are installed shown in being used to reduce, with the convenient interference assembly manipulation that through hole 21 and wheel shaft 6 are installed; Core wheel 2 is provided with air extractor vent 5, technology groove 211 is connected with atmosphere by air extractor vent 5, can drain in the atmosphere via air extractor vent 5 after when gases are heated, they expand in the technology groove 211 so that be enclosed in, prevent the pressure influence installation through hole 21 of this gas expansion and the Joint strenght of wheel shaft 6 diameters, the reliability of having worked when further having guaranteed high temperature.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. split type rail wheel, it is characterized in that, described rail wheel has a columned core wheel, axial line along described core wheel is equipped with the installation through hole, be arranged with the ring-type wheel body that at least one is used to simulate rail on the described core wheel, described core wheel side is provided with the positioning boss that is used for this wheel body of axial stop corresponding to described wheel body, and described positioning boss is towards the surface of described wheel body and the cooresponding end face closed contact of described wheel body; Offer a plurality of tapped bore on described positioning boss and the contacted surface of described wheel body, pass the described wheel body and first bolt that is bolted in respectively in the described tapped bore described wheel body and described core wheel are fixed together;
Each described wheel body comprises the branch wheel body that at least two, rail material make, each described minute wheel body is circular-arc, wheel body was spliced to form described wheel body in described minute, offer splicing groove and splicing projection respectively on adjacent two two end faces that were used to splice on the wheel body in described minute, and described splicing projection is fastened in the described splicing groove; Splicing place at described minute adjacent wheel body is fixed together described minute wheel body by at least one second bolt respectively.
2. split type rail wheel according to claim 1, it is characterized in that, the side of described core wheel is formed with the connecting portion that is positioned at two ends and the positioning boss at middle part, the side of described connecting portion and positioning boss is the face of cylinder, and the diameter of described positioning boss is greater than the diameter of described connecting portion and less than the external diameter of described wheel body; Described wheel body is two, be set in respectively on the described connecting portion, and the opposing end faces of two described wheel bodys respectively with the two ends end face closed contact of described positioning boss, offer a plurality of described tapped bore on the described end face respectively.
3. split type rail wheel according to claim 2 is characterized in that, also is provided with in splicing place of described minute adjacent wheel body to be used for fixing the locating dowel pin that connects described minute wheel body.
4. split type rail wheel according to claim 1 and 2, it is characterized in that, offer groove on described positioning boss and the contacted end face of described wheel body, corresponding respectively described groove is provided with projection on the end face of described wheel body, and described projection is sticked in the described groove.
5. split type rail wheel according to claim 4 is characterized in that, described groove is an annular groove, and described projection is an annular protrusion, and the center of circle of described annular groove and annular protrusion is positioned on the axial line of described core wheel.
6. split type rail wheel according to claim 1 and 2 is characterized in that, offers keyway respectively on the contact surface between described positioning boss and the described wheel body, and correspondence is provided with the key that is used to locate described wheel body and core wheel in the described keyway.
7. split type rail wheel according to claim 6 is characterized in that described key is a rectangle, and the described keyway and the described key that are positioned on the described wheel body leave the gap on the length direction of described rectangle.
8. split type rail wheel according to claim 1 and 2, it is characterized in that, the technology groove of the length of contact that offers sidewall that through hole is installed shown in being used to reduce and wheel shaft on the sidewall of through hole is installed, described core wheel is provided with air extractor vent, and described technology groove is connected with atmosphere by described air extractor vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110251642 CN102358104B (en) | 2011-08-29 | 2011-08-29 | Split type track wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110251642 CN102358104B (en) | 2011-08-29 | 2011-08-29 | Split type track wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102358104A CN102358104A (en) | 2012-02-22 |
| CN102358104B true CN102358104B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110251642 Expired - Fee Related CN102358104B (en) | 2011-08-29 | 2011-08-29 | Split type track wheel |
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| CN (1) | CN102358104B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136487B (en) * | 2015-06-24 | 2018-10-26 | 中国铁道科学研究院 | A kind of combined orbit wheel and cooling device |
| CN105181361B (en) * | 2015-09-08 | 2017-07-28 | 中国铁道科学研究院 | Bullet train eddy-current brake performance test apparatus and method |
| BR202016005359Y1 (en) * | 2016-03-10 | 2019-09-10 | Vale S/A | wheels for translation trucks |
| FR3048919B1 (en) * | 2016-03-17 | 2019-06-28 | Mg-Valdunes | RAIL VEHICLE WHEEL AND METHOD FOR MANUFACTURING THE SAME |
| CN109017140B (en) * | 2017-06-12 | 2024-02-13 | 常州中车铁马科技实业有限公司 | Double-compression ring type elastic wheel for rail transit |
| CN111761988A (en) * | 2020-07-21 | 2020-10-13 | 中车四方车辆有限公司 | Split type guide wheel, tramcar and wheel core replacing method |
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| CN2108641U (en) * | 1991-12-25 | 1992-07-01 | 铁道部沈阳机车车辆工厂 | Wheels for locomotive |
| CN2269970Y (en) * | 1996-03-23 | 1997-12-10 | 山东省五莲县通用机械厂 | Wheel rim of three-wheel agricultural vehicle for farmland working |
| DE19934137A1 (en) * | 1999-07-26 | 2001-02-01 | B O E Technik Ellen Siebeck | Rail wheel to wheel hub motor fixing process, including applying adhesive to threaded apertures in motor, pushing wheel onto studs and screwing nuts onto studs |
| JP3926450B2 (en) * | 1997-12-17 | 2007-06-06 | 財団法人鉄道総合技術研究所 | Elastic wheels for railway vehicles |
| CN201026782Y (en) * | 2007-03-27 | 2008-02-27 | 叶文圣 | Solid tire wheel |
| CN202255900U (en) * | 2011-08-29 | 2012-05-30 | 北京二七轨道交通装备有限责任公司 | Split type track wheel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201136410Y (en) * | 2007-11-27 | 2008-10-22 | 吴会良 | Simple disassembling rim |
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2011
- 2011-08-29 CN CN 201110251642 patent/CN102358104B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108641U (en) * | 1991-12-25 | 1992-07-01 | 铁道部沈阳机车车辆工厂 | Wheels for locomotive |
| CN2269970Y (en) * | 1996-03-23 | 1997-12-10 | 山东省五莲县通用机械厂 | Wheel rim of three-wheel agricultural vehicle for farmland working |
| JP3926450B2 (en) * | 1997-12-17 | 2007-06-06 | 財団法人鉄道総合技術研究所 | Elastic wheels for railway vehicles |
| DE19934137A1 (en) * | 1999-07-26 | 2001-02-01 | B O E Technik Ellen Siebeck | Rail wheel to wheel hub motor fixing process, including applying adhesive to threaded apertures in motor, pushing wheel onto studs and screwing nuts onto studs |
| CN201026782Y (en) * | 2007-03-27 | 2008-02-27 | 叶文圣 | Solid tire wheel |
| CN202255900U (en) * | 2011-08-29 | 2012-05-30 | 北京二七轨道交通装备有限责任公司 | Split type track wheel |
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| JP特许第3926450号B2 2007.06.06 |
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| CN102358104A (en) | 2012-02-22 |
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Granted publication date: 20130731 Termination date: 20180829 |