CN204150056U - A kind of U-shaped secondary framework gapless elastic connection structure - Google Patents
A kind of U-shaped secondary framework gapless elastic connection structure Download PDFInfo
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- CN204150056U CN204150056U CN201420599728.6U CN201420599728U CN204150056U CN 204150056 U CN204150056 U CN 204150056U CN 201420599728 U CN201420599728 U CN 201420599728U CN 204150056 U CN204150056 U CN 204150056U
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Abstract
The utility model relates to railway freight traffic device, and especially the secondary framework type radial steering U-shaped secondary framework gapless elastic connection structure of railway truck, belongs to rolling stock and field of mechanical technique.It is provided with mandrel mounting hole in radial pipe link end, press-fits elasticity hinge in mandrel mounting hole, and the secondary framework of U-shaped has hinge hole, and the radial pipe link end with flexible hinge is positioned at hinge hole.The beneficial effect that the utility model has is: the use of elasticity hinge, achieves the secondary framework of U-shaped hinged with the elasticity gapless in three directions, radial pipe link space, eliminates radial pipe link and U-shaped pair framework respectively to gap and abrasion.
Description
Technical field
The utility model relates to railway freight traffic device, and especially the connection structure of the secondary framework of the secondary framework type radial steering U-shaped 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, it can make bogie truck obtain suitable anti-shearing rigidity and bending stiffness between wheel pair, to improve running velocity and the curving performance of vehicle by the wheel of the radial pipe link cross connection composition of the secondary frameworks of two U-shapeds to radial device.
The connection mode of the secondary framework of current secondary framework type radial steering U-shaped as shown in Figure 1, mainly comprises U-shaped secondary framework 1, pipe link round pin 2 and radial pipe link 3.Pipe link round pin 2 is vertical through the secondary framework upper and lower surface of U-shaped and radial pipe link end mounting hole, and for preventing pipe link round pin 2 from scurrying out, round pin end adopts fastening nuts.This connection mode is simple, reliable effect, but the major defect existed is:
1, pipe link round pin needs through the radial connecting rod bores upper and lower surface of the secondary framework of U-shaped, and the perforate of upper and lower surface, reduce the intensity of secondary framework;
2, pipe link round pin and the secondary framework of U-shaped are free-running fit, there are the abrasion of metal-metal, and after tolerance clearance increase, the performance of bogie truck will decline;
3, the setting accuracy of the secondary framework of U-shaped must be ensured by the length accuracy of radial pipe link, lacks the technological means that adjustment makes up radial pipe link length manufacture deviation;
4, pipe link round pin is vertical through the secondary framework of U-shaped, and connect the below that round pin end mounting nuts is positioned at the secondary framework of U-shaped, operational space is narrow and small, handling inconvenience;
5, radial pipe link and the secondary framework of U-shaped are for being rigidly connected, and can not realize elasticity and connect, be difficult to the coupling stiffness obtaining adapting to bogie truck performance requriements.
Summary of the invention
Problem to be solved in the utility model be exactly for above not enough and provide a kind of easy for installation, the structure that the secondary framework of U-shaped is connected with radial pipe link gapless elasticity can be realized.Its technical scheme is as follows:
The utility model is in order to connect the secondary framework of U-shaped and radial pipe link, its gordian technique is provided with mandrel mounting hole in radial pipe link end, elasticity hinge is press-fited in mandrel mounting hole, elasticity hinge is in the middle part of mandrel, be set with outer shroud steel bushing and inner ring steel bushing, at mandrel, vulcanised rubber layer between outer shroud steel bushing and inner ring steel bushing, the secondary framework of U-shaped has hinge hole, and the radial pipe link end with flexible hinge is positioned at hinge hole.
Compared with prior art, the utility model has following beneficial effect:
1, the radial pipe link end of the utility model is provided with mandrel mounting hole, press-fits elasticity hinge in mandrel mounting hole, and the secondary framework of U-shaped has hinge hole, and the radial pipe link end with flexible hinge is positioned at hinge hole.The use of elasticity hinge, achieves the secondary framework of U-shaped hinged with the elasticity gapless in three directions, radial pipe link space, eliminates radial pipe link and U-shaped pair framework respectively to gap and abrasion.By selecting the rigidity of elasticity hinge, the secondary framework coupling stiffness of best U-shaped that bogie truck needs can be obtained, realize being rotationally connected of the low bound level between the secondary framework of two U-shapeds.
2, the bolt hole of mandrel is connected by the bolt longitudinally arranged with the bolt connecting hole on the secondary framework of U-shaped, make mandrel without the need to the upper and lower surface of the hinge hole through the secondary framework of U-shaped, and be directly vertically mounted on the secondary framework of U-shaped by bolt, improve the assembly performance of bogie truck performance and the secondary framework of U-shaped.
3, the top and bottom of the hinge hole of the secondary framework of U-shaped are without the need to processing pipe link round pin connecting bore, and intensity is improved, and reduces the manufacture of secondary framework type radial steering, maintenance cost.
4, the bolt longitudinally arranged, the thickness of the whole packing ring of optional auxiliary tone, makes up the deviation of two radial pipe link factory lengths, improves the connection precision of the secondary framework of bogie truck U-shaped.
5, the bolt hole of mandrel is connected by the bolt longitudinally arranged with the bolt connecting hole on the secondary framework of U-shaped, and operational space is unrestricted, is convenient to assembling and dismounting.
Accompanying drawing explanation
Fig. 1 is existing secondary framework type radial steering U-shaped secondary framework connection structure schematic diagram;
Fig. 2 is the utility model connection structure assembling schematic diagram;
Fig. 3 is the utility model elasticity hinge structural representation;
Fig. 4 is Fig. 3 birds-eye view;
Fig. 5 is the utility model elasticity hinge three-dimensional structure diagram;
Fig. 6 is the front elevation of the utility model connection structure local;
Fig. 7 is the back view of the utility model connection structure local;
Fig. 8 is the utility model U-shaped secondary framework coupled condition schematic diagram.
Detailed description of the invention
See Fig. 2 ~ Fig. 8, the utility model is in order to connect the secondary framework 1 of U-shaped and radial pipe link 3, its gordian technique is provided with mandrel mounting hole 9 in radial pipe link 3 end, elasticity hinge 8 is press-fited in mandrel mounting hole 9, elasticity hinge 8 is in the middle part of mandrel 7, be set with outer shroud steel bushing 13 and inner ring steel bushing 15, at mandrel 7, vulcanised rubber layer 16 between outer shroud steel bushing 13 and inner ring steel bushing 15, the secondary framework 1 of U-shaped has hinge hole 10, and radial pipe link 3 end with flexible hinge 8 is positioned at hinge hole 10.
Described mandrel 7 two ends have bolt hole 14, upper and lower two corresponding boss 12 are set in hinge hole 10, boss 12 has bolt connecting hole 11, bolt hole 14 is connected by the bolt 4 longitudinally arranged with bolt connecting hole 11, bolt 4 is undertaken fastening by adjustment packing ring 6 and nut 5, and fastening rear spot welding solid welding is to reach locking object.Mandrel 7 is steel material, and the diameter of the bolt hole 14 of mandrel end is chosen by the size of different bogie truck pipe link actual loading, and scope is 8mm ~ 12mm.
Described elasticity is cut with scissors 8 interference and is press-fited in mandrel mounting hole 9, and for ensureing connection reliability and being convenient to dismounting, the magnitude of interference is 0.06mm ~ 0.16mm.
Press-fit the angle that need to control when elasticity cuts with scissors 8 between mandrel 7 and radial pipe link 3 axis, be generally not more than 0.2deg, best between 0.1deg ~ 0.2deg.
For ensureing the strength and stiffness of elasticity hinge 8, the diameter of mandrel mounting hole 9 is 50mm ~ 80mm.
The rigidity that described rubber layer 16 provides carries out parameter preferably according to Bogie Designs, and general radial rigidity scope is between 20MN/m ~ 50MN/m, and the rigidity of torsion is between 0.5MN/m ~ 1MN/m.
Described bolt 4 adopts adjustment packing ring 6 to regulate, and the thickness of adjustment packing ring 6 can adjust, and its thickness specification is 1mm ~ 4mm, makes up the deviation of two radial pipe link 3 factory lengths, improves the assembly precision of the secondary framework of bogie truck U-shaped.
Claims (7)
1. a U-shaped secondary framework gapless elastic connection structure, in order to connect the secondary framework (1) of U-shaped and radial pipe link (3), it is characterized in that being provided with mandrel mounting hole (9) in radial pipe link (3) end, elasticity hinge (8) is press-fited in mandrel mounting hole (9), elasticity hinge (8) is at mandrel (7) middle part suit outer shroud steel bushing (13) and inner ring steel bushing (15), in mandrel (7), vulcanised rubber layer (16) between outer shroud steel bushing (13) and inner ring steel bushing (15), the secondary framework (1) of U-shaped has hinge hole (10), radial pipe link (3) end with flexible hinge (8) is positioned at hinge hole (10).
2. U-shaped secondary framework gapless elastic connection structure according to claim 1, it is characterized in that mandrel (7) two ends have bolt hole (14), upper and lower two corresponding boss (12) are set in hinge hole (10), boss (12) has bolt connecting hole (11), bolt hole (14) is connected by the bolt (4) longitudinally arranged with bolt connecting hole (11).
3. U-shaped secondary framework gapless elastic connection structure according to claim 1, it is characterized in that (8) interference of elasticity hinge press-fits in mandrel mounting hole (9), the magnitude of interference is 0.06mm ~ 0.16mm.
4. U-shaped secondary framework gapless elastic connection structure according to claim 1, is characterized in that the angle between mandrel (7) and radial pipe link (3) axis with 0.1deg ~ 0.2deg.
5. U-shaped secondary framework gapless elastic connection structure according to claim 1, is characterized in that the diameter of mandrel mounting hole (9) is 50mm ~ 80mm.
6. U-shaped secondary framework gapless elastic connection structure according to claim 1, it is characterized in that the radial rigidity scope of rubber layer (16) is between 20MN/m ~ 50MN/m, the rigidity of torsion is between 0.5MN/m ~ 1MN/m.
7. U-shaped secondary framework gapless elastic connection structure according to claim 1, it is characterized in that bolt (4) adopts adjustment packing ring (6) to regulate, the thickness of adjustment packing ring (6) can adjust, and its thickness specification is 1mm ~ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599728.6U CN204150056U (en) | 2014-10-16 | 2014-10-16 | A kind of U-shaped secondary framework gapless elastic connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599728.6U CN204150056U (en) | 2014-10-16 | 2014-10-16 | A kind of U-shaped secondary framework gapless elastic connection structure |
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| CN204150056U true CN204150056U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420599728.6U Active CN204150056U (en) | 2014-10-16 | 2014-10-16 | A kind of U-shaped secondary framework gapless elastic connection structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325992A (en) * | 2014-10-16 | 2015-02-04 | 南车眉山车辆有限公司 | U-shaped sub-frame gapless elastic connection structure |
| CN108116441A (en) * | 2017-11-27 | 2018-06-05 | 中车眉山车辆有限公司 | A kind of steering framing wheel with rigidity adjustable structure is to radial direction mechanism |
-
2014
- 2014-10-16 CN CN201420599728.6U patent/CN204150056U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325992A (en) * | 2014-10-16 | 2015-02-04 | 南车眉山车辆有限公司 | U-shaped sub-frame gapless elastic connection structure |
| CN108116441A (en) * | 2017-11-27 | 2018-06-05 | 中车眉山车辆有限公司 | A kind of steering framing wheel with rigidity adjustable structure is to radial direction mechanism |
| WO2019100970A1 (en) * | 2017-11-27 | 2019-05-31 | 中车眉山车辆有限公司 | Bogie wheelset radial mechanism with structure of adjustable rigidity |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |