CN204605833U - Standard motor train unit power steering truck frame work - Google Patents
Standard motor train unit power steering truck frame work Download PDFInfo
- Publication number
- CN204605833U CN204605833U CN201520267164.0U CN201520267164U CN204605833U CN 204605833 U CN204605833 U CN 204605833U CN 201520267164 U CN201520267164 U CN 201520267164U CN 204605833 U CN204605833 U CN 204605833U
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- China
- Prior art keywords
- curb girder
- crossbeam
- upper cover
- cover plate
- contiguous block
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- 238000003032 molecular docking Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 abstract description 7
- 239000012141 concentrate Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A kind of standard motor train unit power steering truck frame work, it is characterized in that: curb girder is connected with variable section mode with grafting with crossbeam, curb girder upper cover plate inwardly extends through contiguous block and crossbeam upper cover plate realizes variable section docking, contiguous block is space curved surface structure, curb girder lower cover also inwardly extends and dock with crossbeam lower cover, and crossbeam outer vertical plate and inner vertical plate are directly connected with curb girder inner vertical plate respectively to extension insertion curb girder is inner.This framework changes of section does not cause stress to concentrate and stress level is suitable; Contiguous block is space curved surface structure, and geometric properties achieves the smoothly transition from curb girder upper cover plate to crossbeam upper cover plate, therefore realizes the mild transmission of stress between curb girder upper cover plate and crossbeam upper cover plate; Box-structure can continuous transition, and the rigidity value of framework agent structure is in average level, avoids the rigidity of this join domain and to increase and the stress caused is concentrated.
Description
Technical field
The utility model relates to a kind of framework, especially relates to a kind of motor train unit power steering truck frame work of low stress of improvement.
Background technology
It is round steel pipe structure that existing EMU power steering truck frame work has one to be crossbeam, need be connected by transition structure with the curb girder of both sides, and other functional details are welded in circular steel tube cross beams and two curb girders respectively.The beam structure of this kind of framework is comparatively simple, and load-carrying capacity is relatively high.But there is following problem in the junction of crossbeam and two curb girders:
(1) there is geometric catastrophe in the cross section of junction, and framework overall stress cannot evenly be transmitted, and there will be stress and concentrate situation, belongs to framework load-carrying capacity weak area;
(2) for meeting the requirement of strength of this join domain, need carry out comparatively complicated structure design and welding design, thus, the manufacturability in this region requires higher;
(3) on framework, the actuating device of larger quality is directly installed on crossbeam place, and its frequent operation state causes the force-bearing situation of this join domain very harsh, causes this join domain to belong to anti-fatigue performance thin spot in the framework military service phase.
Also have a kind of EMU power steering truck frame work, its technical characteristics is that the crossbeam of box-structure is connected by intermediate configuration with curb girder, and namely intermediate configuration side is connected with crossbeam, and opposite side is connected with curb girder.Other functional details are welded in crossbeam and two curb girders respectively.Following problem is there is in the framework of this kind of structure in the connection of crossbeam, curb girder and intermediate configuration:
(1) the multiple tracks attachment weld of every side is in close region, and cause the strength grade in this region seriously on the low side, therefore this join domain belongs to the stressed weakness zone of framework; Therefore the degree of quality of weld seam requires higher, belongs to the high risk area in the framework military service phase simultaneously;
(2) intermediate configuration rigidity is bigger than normal, when causing framework stand under load, the stress of crossbeam and curb girder can not evenly transmit, must form area of stress concentration in its vicinity, bear higher stress with therefore causing the large density of neighbouring attachment weld, the fatigue property of butt welded seam is very unfavorable.
Utility model content
The purpose of this utility model is to provide a kind of EMU power steering truck frame work of low stress, to be connected with curb girder variable section and the stress in this region is concentrated to solve crossbeam, simultaneously by the particular design of weld seam, make the stress level of each parts attachment weld on framework relatively low, present good anti-fatigue performance and the safety of this framework.
For achieving the above object, the utility model provides a kind of standard motor train unit power steering truck frame work, main body is made up of two curb girders and a crossbeam, curb girder and main body of cross-beam all adopt box welded structure, curb girder and crossbeam are welded with various mount pad respectively, it is characterized in that: curb girder is connected with variable section mode with grafting with crossbeam, curb girder upper cover plate inwardly extends through contiguous block and crossbeam upper cover plate realizes variable section docking, contiguous block is space curved surface structure, curb girder lower cover also inwardly extend dock with crossbeam lower cover, and crossbeam outer vertical plate and inner vertical plate insert respectively to extension, and curb girder is inner to be directly connected with curb girder inner vertical plate.
The utility model curb girder upper cover plate inwardly extends through contiguous block and crossbeam upper cover plate and realizes variable section docking, meets equal strength and connects, and namely changes of section does not cause stress to concentrate and stress level is suitable; Contiguous block is space curved surface structure, and geometric properties achieves the smoothly transition from curb girder upper cover plate to crossbeam upper cover plate, therefore realizes the mild transmission of stress between curb girder upper cover plate and crossbeam upper cover plate; Curb girder lower cover also inwardly extend dock with crossbeam lower cover, and crossbeam outer vertical plate and inner vertical plate insert respectively to extension, and curb girder is inner to be directly connected with curb girder inner vertical plate, structure is simple, make box-structure can continuous transition, advantage is that the rigidity value of framework agent structure is in average level, and the rigidity increase avoiding this join domain and the stress caused are concentrated.This kind of connection mode improves the current comparatively general shortcoming connected mouth to mouth, and namely the low carrying high risk zone that causes with cross section of attachment weld, also inherits the simple advantage of butt-joint process mouth to mouth.Therefore not only can meet the safe and reliable operation of Highs-speed motor train unit bogie, and meet international advanced standard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is horizontal curb girder socket connection structural representation;
Fig. 3 is the contiguous block schematic diagram with space curved surface structure.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, main body is made up of two curb girders 1 and a crossbeam 2, curb girder and main body of cross-beam all adopt box welded structure, and connect with inserting mode, curb girder and crossbeam are welded with various mount pad respectively, curb girder upper cover plate 101 inwardly extends through contiguous block 3 and crossbeam upper cover plate 201 realizes variable section docking, contiguous block 3 is space curved surface structure, curb girder lower cover 102 also inside prolongation docks with crossbeam lower cover 202, and crossbeam outer vertical plate 203 and inner vertical plate 204 insert respectively to extension, and curb girder 1 is inner to be directly connected with curb girder inner vertical plate 103
With reference to Fig. 3, is connected for the variable section of crossbeam upper cover plate 201 with curb girder upper cover plate 101, meets equal strength connection, namely changes of section does not cause stress concentrated and stress level is suitable.For realizing the good linkage function of both sides, contiguous block 3 upper and lower surface all needs space negative camber transition, belong to space curved surface structure, to realize the smoothly transition on geometric properties, curb girder upper cover plate 101 can be made, the stress of crossbeam upper cover plate 201 is transferred to corresponding crossbeam upper cover plate 201, curb girder upper cover plate 101 gently, and avoid Stress transmit and stress occurs to contiguous block 3 concentrate.
Connection between the connection of curb girder upper cover plate, contiguous block and crossbeam upper cover plate three and lower cover is butt weld, and can realize complete penetraction and fusion in welding, to ensure its higher intensity and safe class.
Claims (1)
1. a standard motor train unit power steering truck frame work, main body is made up of two curb girders and a crossbeam, curb girder and main body of cross-beam all adopt box welded structure, curb girder and crossbeam are welded with various mount pad respectively, it is characterized in that: curb girder is connected with variable section mode with grafting with crossbeam, curb girder upper cover plate inwardly extends through contiguous block and crossbeam upper cover plate realizes variable section docking, contiguous block is space curved surface structure, curb girder lower cover also inwardly extend dock with crossbeam lower cover, and crossbeam outer vertical plate and inner vertical plate insert respectively to extension, and curb girder is inner to be directly connected with curb girder inner vertical plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267164.0U CN204605833U (en) | 2015-04-29 | 2015-04-29 | Standard motor train unit power steering truck frame work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267164.0U CN204605833U (en) | 2015-04-29 | 2015-04-29 | Standard motor train unit power steering truck frame work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204605833U true CN204605833U (en) | 2015-09-02 |
Family
ID=53958404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520267164.0U Expired - Fee Related CN204605833U (en) | 2015-04-29 | 2015-04-29 | Standard motor train unit power steering truck frame work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204605833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843025A (en) * | 2015-04-29 | 2015-08-19 | 长春轨道客车股份有限公司 | Standard motor train unit power bogie frame |
| CN107554543A (en) * | 2017-10-13 | 2018-01-09 | 通号轨道车辆有限公司 | A kind of rail vehicle and its radial type tramcar bogie |
-
2015
- 2015-04-29 CN CN201520267164.0U patent/CN204605833U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843025A (en) * | 2015-04-29 | 2015-08-19 | 长春轨道客车股份有限公司 | Standard motor train unit power bogie frame |
| CN107554543A (en) * | 2017-10-13 | 2018-01-09 | 通号轨道车辆有限公司 | A kind of rail vehicle and its radial type tramcar bogie |
| CN107554543B (en) * | 2017-10-13 | 2023-09-19 | 通号轨道车辆有限公司 | Rail vehicle and articulated tramcar bogie thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20210429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |