CN204383484U - A kind of flexible secondary framework - Google Patents
A kind of flexible secondary framework Download PDFInfo
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- CN204383484U CN204383484U CN201420800001.XU CN201420800001U CN204383484U CN 204383484 U CN204383484 U CN 204383484U CN 201420800001 U CN201420800001 U CN 201420800001U CN 204383484 U CN204383484 U CN 204383484U
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- frame arm
- secondary frame
- adapter
- pipe link
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Abstract
The utility model discloses a kind of railway freight traffic device, especially the secondary framework type radial steering flexible secondary framework of railway truck, belongs to rolling stock and field of mechanical technique.It comprises secondary framework body and pipe link, pipe link two ends are connected with secondary framework body, cross connection between pipe link, its gordian technique is that secondary framework body comprises the secondary frame arm of L shape, the secondary frame arm one end of L shape connects one end of the secondary frame arm of another L shape by median plate spring, the secondary frame arm other end of L shape installs adapter, arranges adjustment backing plate between the secondary frame arm of L shape and adapter.The beneficial effect that the utility model has is: median plate spring has larger lateral stiffness, larger longitudinal rigidity and less torsional stiffness, this characteristic while guarantee effectively transmits horizontal and vertical power, can improve the adaptive capacity of flexible secondary framework to distortion itself; Between the secondary frame arm of L shape and adapter, adjustment backing plate is set, the transverse distance between the secondary frame arm of L shape and adapter can be adjusted.
Description
Technical field
The utility model relates to a kind of railway freight traffic device, and especially the secondary framework of the secondary framework type radial steering of railway truck, belongs to rolling stock and field of mechanical technique.
Background technology
Secondary framework type radial steering is the one of radial steering, its wheel consisted of radial pipe link cross connection two secondary frameworks can make bogie truck obtain suitable anti-shearing rigidity and bending stiffness between wheel pair to radial device, improves running velocity and the curving performance of vehicle.
Current typical secondary framework type radial steering wheel is to radial device, and its structure and connection mode as shown in Figure 1, mainly comprise secondary framework 1, pipe link round pin 2, pipe link 3, and its structure is simple, reliable effect, but the major defect existed is:
1, secondary framework is casting integrated, elongated arm structure, and the control difficulty of casting distortion is comparatively large, especially left and right adapter 4 transverse distance, and left and right adapter 4 is difficult to control with the right alignment of bearing contact surfaces.Once distortion exceeds error limit, often need to heat correction on special tooling, heat treatment again after correction, technique is comparatively complicated.
2, secondary framework transverse direction, longitudinal direction and torsional stiffness are all very large.Theoretical investigation shows, larger and suitable horizontal, longitudinal rigidity are the keys that secondary framework type radial steering realizes radial performance, torsional stiffness and bogie truck dynamic performance have nothing to do, but it is relevant to the homogeneity of shaft strength, torsional stiffness is less, when identical manufacturing errors especially coaxiality error, less to the increment load of bearing.Existing secondary framework, by the restriction of structure, cannot realize less torsional stiffness.
3, the connection of secondary framework and adapter have employed cast-in-block form, or have employed the fastening mode of vertical rivet 5 as shown in Figure 2, and which cannot adjust the transverse distance of adapter 4.
Summary of the invention
Problem to be solved in the utility model is exactly provide a kind of secondary framework type radial steering ensureing bogie truck performance and improve secondary framework assembly performance for above deficiency.Its technical scheme is as follows:
It comprises secondary framework body and pipe link, pipe link two ends are connected with secondary framework body, cross connection between pipe link, its gordian technique is that secondary framework body comprises the secondary frame arm of L shape, the secondary frame arm one end of L shape connects one end of the secondary frame arm of another L shape by median plate spring, the secondary frame arm other end of L shape installs adapter, arranges adjustment backing plate between the secondary frame arm of L shape and adapter.
Mounting hole is offered in the secondary frame arm one end of described L shape, the secondary frame arm of L shape and median plate spring by fastening rivet and pipe link rivet through the fastening location of mounting hole.
It is fastening that the secondary frame arm of described L shape and adapter are horizontally through the secondary frame arm of L shape by adapter connection rivet.
Compared with prior art, the utility model has following beneficial effect:
1, the secondary frame arm one end of two L shapes is connected by median plate spring, median plate spring has larger lateral stiffness, larger longitudinal rigidity and less torsional stiffness, this characteristic can while guarantee effectively transmits horizontal and vertical power, improve the adaptive capacity of flexible secondary framework to distortion itself, less torsional stiffness can be realized;
2, the utilization of median plate spring overcomes prior art and is integrally cast by secondary framework, and casting difficulty is large, distortion heavy handled defect, realizes the modularization assembling of these parts, simplifies production technology, and be conducive to alleviating of secondary framework weight;
3, arrange adjustment backing plate between the secondary frame arm of L shape and adapter, in order to adjust the transverse distance between the secondary frame arm of L shape and adapter, and adapter and the secondary frame arm of L shape adopt adapter connection rivet lateral connection, facilitate the assembling of adapter to adjust.
Accompanying drawing explanation
Fig. 1, for existing secondary framework type radial steering wheel is to radial apparatus structure;
Fig. 2 is a kind of connection mode of existing secondary framework and adapter;
Fig. 3 is the utility model mounting structure schematic diagram;
Fig. 4 is the utility model structural representation;
Detailed description of the invention
See Fig. 1 ~ Fig. 4, the utility model comprises secondary framework body and pipe link 3, and pipe link 3 two ends are connected with secondary framework body by pipe link rivet 10, cross connection between pipe link 3.Its gordian technique is that secondary framework body comprises the secondary frame arm 8 of L shape, secondary frame arm 8 one end of L shape connects one end of the secondary frame arm 8 of another L shape by median plate spring 12, arrange between the L shape secondary frame arm 8 other end installation secondary frame arm 8 of adapter 4, L shape and adapter 4 and adjust backing plate 6 in order to adjust the transverse distance between the secondary frame arm 8 of L shape and adapter 4.
The secondary frame arm 8 of mounting hole 11, L shape and median plate spring 12 are offered by fastening rivet 9 and pipe link rivet 10 through the fastening location of mounting hole 11 in secondary frame arm 8 one end of described L shape.
It is fastening that the secondary frame arm 8 of described L shape and adapter 4 are horizontally through the secondary frame arm 8 of L shape by adapter connection rivet 7.
Median plate spring 12 in the utility model embodiment is high-quality spring steel (as 60Si2Mn, 60Si2CrVAT etc.), its thickness and width specifications adjust by horizontal, longitudinal rigidity during specific design flexible secondary framework, the thickness recommended is 8mm, 10mm, 12mm and 14mm, and width is 90mm, 100mm, 110mm, 120mm.Fastening rivet 9 and pipe link rivet 10 adopt failure-free Huck rivet, but do not get rid of other fasteners such as adopting the bolt that meets the demands.Fastening rivet 9 is interference fit with coordinating of mounting hole 11, and pipe link rivet 10 is free-running fit with L shape secondary coordinating of frame arm mounting hole, and fastening rivet 9 and pipe link rivet 10 all require with mounting hole top and bottom closely connected and fastening.Adapter connection rivet 7 is free-running fit with adapter 4, the secondary frame arm 8 of L shape, and each component axial attachment face is closely connected and fastening.Adjustment backing plate 6 adopts spring steel, and thickness is between 0.2mm ~ 1.2mm.
Claims (3)
1. a flexible secondary framework, comprise secondary framework body and pipe link (3), pipe link (3) two ends are connected with secondary framework body, cross connection between pipe link (3), it is characterized in that secondary framework body comprises the secondary frame arm (8) of L shape, secondary frame arm (8) one end of L shape connects one end of the secondary frame arm (8) of another L shape by median plate spring (12), secondary frame arm (8) other end of L shape installs adapter (4), arranges and adjust backing plate (6) between the secondary frame arm (8) of L shape and adapter (4).
2. flexible secondary framework according to claim 1, it is characterized in that offering mounting hole (11) in secondary frame arm (8) one end of L shape, the secondary frame arm (8) of L shape and median plate spring (12) by fastening rivet (9) and pipe link rivet (10) through mounting hole (11) fastening location.
3. flexible secondary framework according to claim 1, is characterized in that the secondary frame arm (8) of L shape and adapter (4) are horizontally through the secondary frame arm (8) of L shape by adapter connection rivet (7) fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800001.XU CN204383484U (en) | 2014-12-16 | 2014-12-16 | A kind of flexible secondary framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800001.XU CN204383484U (en) | 2014-12-16 | 2014-12-16 | A kind of flexible secondary framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204383484U true CN204383484U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420800001.XU Active CN204383484U (en) | 2014-12-16 | 2014-12-16 | A kind of flexible secondary framework |
Country Status (1)
| Country | Link |
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| CN (1) | CN204383484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501972A (en) * | 2018-06-19 | 2018-09-07 | 株洲市求拙机械制造有限公司 | Railway freight-car self steering bogie pair framework seat and adapter coupling method and device |
| WO2021120662A1 (en) * | 2019-12-17 | 2021-06-24 | 中车长江铜陵车辆有限公司 | Integral-casting-type sub-frame for railway wagon bogie |
| CN113428185A (en) * | 2021-06-23 | 2021-09-24 | 中车株洲电力机车有限公司 | Primary suspension device |
-
2014
- 2014-12-16 CN CN201420800001.XU patent/CN204383484U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501972A (en) * | 2018-06-19 | 2018-09-07 | 株洲市求拙机械制造有限公司 | Railway freight-car self steering bogie pair framework seat and adapter coupling method and device |
| CN108501972B (en) * | 2018-06-19 | 2024-02-27 | 株洲市求拙机械制造有限公司 | Method and device for connecting auxiliary frame seat and bearing saddle of self-guiding bogie of railway wagon |
| WO2021120662A1 (en) * | 2019-12-17 | 2021-06-24 | 中车长江铜陵车辆有限公司 | Integral-casting-type sub-frame for railway wagon bogie |
| CN113428185A (en) * | 2021-06-23 | 2021-09-24 | 中车株洲电力机车有限公司 | Primary suspension device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |