CN205022599U - Low -floor rail vehicle is with axle bridge construction - Google Patents
Low -floor rail vehicle is with axle bridge construction Download PDFInfo
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- CN205022599U CN205022599U CN201520788519.0U CN201520788519U CN205022599U CN 205022599 U CN205022599 U CN 205022599U CN 201520788519 U CN201520788519 U CN 201520788519U CN 205022599 U CN205022599 U CN 205022599U
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Abstract
The utility model relates to a low -floor rail vehicle is with axle bridge construction, including the either end of a bridge subassembly that two symmetries set up, connect through the horizontal beam between two spindle nose subassemblies, the spindle nose subassembly the whole cast form, the horizontal beam forms for metal sheet concatenation welding, be connected through welded fastening between spindle nose subassembly and the horizontal beam, two all be provided with in the spindle nose subassembly and be used for with the wheel connection's connecting seat and be used for installing first stage spring's spring mounting seat. The utility model discloses a processing mode that the cast joint combines, the processing cost is lower to can improve production efficiency, this kind of structure can reduce casting process's the degree of difficulty moreover, and reduce cost also makes the axle bridge have sufficient fatigue strength, and the manufacturability is good.
Description
Technical field
The utility model relates to a kind of axle bridge used on guideway vehicle, and particularly a kind of low floor vehicle axle bridge construction, belongs to guideway vehicle manufacturing technology field.
Background technology
Low floor vehicle is one of important tool of urban track traffic, the independent wheel bogie of existing low-floor rail vehicle is generally made up of parts such as framework, axle bridge, wheel, single stage suspension device, secondary suspension device and drive motor, framework is made up of two curb girders and middle crossbeam, drive motor drives vehicle wheel rotation band motor vehicle to travel, connect by axle bridging between two relative wheels, axle bridge plays a part to support whole car body weight.For ensureing safety and the traveling comfort of vehicle operating, to the structural behaviour of axle bridge, there is higher requirement.
Existing low-floor rail vehicle bogie truck, the camber beam composition that axle bridge takes the shape of the letter U primarily of one, four are welded with again for installing the mount pad of primary spring at the two ends of camber beam, the manufacture of axle bridge mainly contains following several, one is solid forging, one is each parts welding assembly, and another is inblock cast.Solid forging and cast-in-block mode, technique is all comparatively complicated, and difficulty of processing is high, and tooling cost is also relatively high, and adopt the mode of each parts welding assembly, then complex procedures, work efficiency is low, and tooling cost is also higher.
Utility model content
The utility model main purpose is to solve the problem and deficiency, provides a kind of tooling cost lower, and the low-floor rail vehicle axle bridge construction that can enhance productivity.
For achieving the above object, the technical solution of the utility model is:
A kind of low-floor rail vehicle axle bridge construction, comprise two symmetrically arranged spindle nose assemblies, connected by horizontal beam between two spindle nose assemblies, described spindle nose component integration casting forms, described horizontal beam is that metal sheet splicing is welded, be fixedly connected by welding between described spindle nose assembly and horizontal beam, in two described spindle nose assemblies, be provided with the Connection Block for being connected with wheel and the spring mounting seat for installing primary spring.
Further, tower structure is connected to form by two parallel horizontal beams between two described spindle nose assemblies.
Further, the main body of described spindle nose assembly is made up of vertical component effect and horizontal part, and described horizontal part takes the shape of the letter U, and the leading section of U-shaped is welded and fixed with two horizontal beams and is connected, and described Connection Block is vertically fixed on described vertical component effect.
Further, described horizontal part extends outward two symmetrical shoulders, each described shoulder arranges described spring mounting seat.
Further, the position of described shoulder is connected with arc-shaped transition between horizontal part.
Further, the vertical component effect in described spindle nose assembly is installed with brake clamp permanent seat.
Further, the described horizontal part that each described spring mounting seat is other is provided with a tying gear reference plane.
Further, described horizontal beam is " mouth " tee beam be welded by the groove beam of U-shaped and cover plate.
To sum up content, a kind of low-floor rail vehicle axle bridge construction described in the utility model, adopt the processing mode that cast welding combines, tooling cost is lower, and can enhance productivity, and this structure can reduce the difficulty of foundry technique, reduces costs, also make axle bridge have enough strength at repeated alternations, manufacturability is good.In addition, because horizontal beam is spliced by metal sheet to be welded, the weight of horizontal beam can be reduced, and then alleviate the total weight of axle bridge, reduce unsprung weight.
Accompanying drawing explanation
Fig. 1 is the utility model axle bridge embodiment one structural representation;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the utility model axle bridge embodiment two structural representation.
As shown in Figures 1 to 4, spindle nose assembly 1, vertical component effect 1a, horizontal part 1b, shoulder 1c, horizontal beam 2, Connection Block 3, spring mounting seat 4, opening 5, a tying gear reference plane 6, concave inward structure 7, hole 8, brake clamp permanent seat 9.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
Embodiment one:
As shown in Figure 1 to Figure 3, axle bridge is arranged on low-floor bogie, and each bogie truck installs two axle bridges, and an independent wheel is installed at the two ends of axle bridge respectively, is provided with four primary springs between each axle bridge and framework.
Axle bridge comprises two symmetrically arranged spindle nose assemblies 1, tower structure is connected to form by two parallel horizontal beams 2 between two spindle nose assemblies 1, Connection Block 3 for being connected with independent wheel and two are provided with for installing the spring mounting seat 4 of primary spring in each spindle nose assembly 1, Connection Block 3 is connected by bearing with between wheel, is fixed by axle head big nut and spline pad in the end of Connection Block 3.
The structure of two spindle nose assemblies 1 is identical, and the main body of spindle nose assembly 1 is made up of vertical component effect 1a and horizontal part 1b, and the section of main body is roughly L shape.For ensureing bulk strength and the load-carrying capacity of spindle nose assembly 1, vertical component effect 1a adopts leg-of-mutton structure, and leg-of-mutton base is connected with horizontal part 1b, under the prerequisite ensureing vertical component effect 1a structural strength, vertical component effect 1a is provided with one or more opening 5, to alleviate the weight of whole axle bridge.Connect a Connection Block 3 in the side of each vertical component effect 1a, Connection Block 3 is connected with the independent wheel of respective side.
Horizontal part 1b takes the shape of the letter U, and the leading section of U-shaped dual-side is connected respectively with the end of two horizontal beams 2.Two sides of U-shaped horizontal part 1b are also respectively arranged with a upwards slightly protruding part, the upper surface of this part is a tying gear reference plane 6, architecturally also be correspondingly provided with a reference plane (not shown), fall the gap measured after car between two reference planes, to determine the vertical backstop gap between axle bridge and framework.
Horizontal part 1b respectively extends a shoulder 1c to both sides, two shoulder 1c are symmetrical arranged, each shoulder 1c arranges a spring mounting seat 4, spring mounting seat 4 is for having the circular port of the base seal of step-like structure, the diameter of the first half of ledge structure is greater than the diameter of the latter half, and primary spring is arranged in spring mounting seat 4.All adopt the mode of arc-shaped transition to connect between the position of shoulder 1c and the horizontal part 1b be connected, not only play the effect of reinforced rib, the effect reducing local stress, improve fatigue resistance can also be played.The sidewall of shoulder 1c has a place or many places concave inward structure 7, under the requirement ensureing structural strength and rigidity, the weight of horizontal beam 2 can be reduced, and then alleviate the total weight of axle bridge 2, to reduce unsprung weight.
Spindle nose assembly 1 adopts cast-in-block technique integrally casting shaping by cast steel, horizontal beam 2 then adopts and is welded by metal sheet splicing, horizontal beam 2 is that the groove beam of U-shaped and one piece of cover plate are welded by a section, form the horizontal beam 2 that a section is " mouth " font, the groove beam of U-shaped can one-body moldedly also can be welded into by metal sheet splicing.Under the requirement ensureing structural strength and rigidity, the horizontal beam 2 of " mouth " font can reduce the weight of horizontal beam, and then alleviates the total weight of axle bridge, reduces unsprung weight.
Be fixedly connected by welding between two leading sections of the horizontal part 1b in spindle nose assembly 1 and the end of horizontal beam 2.This structure can reduce the difficulty of foundry technique, reduces costs, and also make axle bridge have enough strength at repeated alternations, manufacturability is good.
Because axle bridge adopts the structure of frame-type, under the requirement ensureing structural strength and rigidity, the thickness of horizontal beam 2 can be reduced, namely can reduce the height of whole axle bridge, and and then the height of vehicle floor apart from rail level can be reduced further, saving bogie truck space.
The vertical surface of the horizontal part 1b both sides in spindle nose assembly 1 is provided with three holes 8, wherein, two holes 8 are tapped bore, for installing the annex on bogie truck, as sand spraying apparatus, sweep stone implement, magnetic rail brake device etc., another hole 8 is dowel hole, locating dowel pin is installed, avoid bolt to be subject to shearing force, ensure the service life of bolt, and then guarantee traffic safety.
Embodiment two:
As shown in Figure 4, be with embodiment one difference, according to the installation site of brake disc, the vertical component effect 1a in spindle nose assembly 1 can fixedly mount brake clamp permanent seat 9, brake clamp permanent seat 9 can with shaping by spindle nose assembly 1 integrally casting.
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 solutions of the utility model, any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. a low-floor rail vehicle axle bridge construction, it is characterized in that: comprise two symmetrically arranged end of the bridge assemblies, connected by horizontal beam between two spindle nose assemblies, described spindle nose component integration casting forms, described horizontal beam is that metal sheet splicing is welded, be fixedly connected by welding between described spindle nose assembly and horizontal beam, in two described spindle nose assemblies, be provided with the Connection Block for being connected with wheel and the spring mounting seat for installing primary spring.
2. low-floor rail vehicle axle bridge construction according to claim 1, is characterized in that: connect to form tower structure by two parallel horizontal beams between two described spindle nose assemblies.
3. low-floor rail vehicle axle bridge construction according to claim 2, it is characterized in that: the main body of described spindle nose assembly is made up of vertical component effect and horizontal part, described horizontal part takes the shape of the letter U, the leading section of U-shaped is welded and fixed with two horizontal beams and is connected, and described Connection Block is vertically fixed on described vertical component effect.
4. low-floor rail vehicle axle bridge construction according to claim 3, is characterized in that: on described horizontal part, extend outward two symmetrical shoulders, each described shoulder arranges described spring mounting seat.
5. low-floor rail vehicle axle bridge construction according to claim 4, is characterized in that: the position of described shoulder is connected with arc-shaped transition between horizontal part.
6. low-floor rail vehicle axle bridge construction according to claim 3, is characterized in that: the vertical component effect in described spindle nose assembly is installed with brake clamp permanent seat.
7. low-floor rail vehicle axle bridge construction according to claim 3, is characterized in that: on the described horizontal part that each described spring mounting seat is other, be provided with a tying gear reference plane.
8. low-floor rail vehicle axle bridge construction according to claim 1, is characterized in that: described horizontal beam is " mouth " tee beam be welded by the groove beam of U-shaped and cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520788519.0U CN205022599U (en) | 2015-10-12 | 2015-10-12 | Low -floor rail vehicle is with axle bridge construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520788519.0U CN205022599U (en) | 2015-10-12 | 2015-10-12 | Low -floor rail vehicle is with axle bridge construction |
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| CN205022599U true CN205022599U (en) | 2016-02-10 |
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| CN201520788519.0U Active CN205022599U (en) | 2015-10-12 | 2015-10-12 | Low -floor rail vehicle is with axle bridge construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190044621A (en) * | 2016-08-30 | 2019-04-30 | 루치니 알에스 에스.피.에이 | Low-floor railway vehicle portal axles and rail-tram vehicles |
| EP3659894A1 (en) * | 2018-11-22 | 2020-06-03 | Bombardier Transportation GmbH | Running gear with a single pair of independent left and right wheels and lateral stop means, and associated low floor rail vehicle |
-
2015
- 2015-10-12 CN CN201520788519.0U patent/CN205022599U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190044621A (en) * | 2016-08-30 | 2019-04-30 | 루치니 알에스 에스.피.에이 | Low-floor railway vehicle portal axles and rail-tram vehicles |
| EP3490867B1 (en) * | 2016-08-30 | 2021-04-28 | Lucchini RS S.p.A. | Portal-axle of low floor rail vehicles and rail-and-tram vehicles |
| KR102362603B1 (en) * | 2016-08-30 | 2022-02-11 | 루치니 알에스 에스.피.에이 | Portal axles of low-floor rolling stock and rail-tram vehicles |
| US11260692B2 (en) | 2016-08-30 | 2022-03-01 | Lucchini Rs S.P.A. | Portal-axle of low floor rail vehicles and rail-and-tram vehicles |
| EP3659894A1 (en) * | 2018-11-22 | 2020-06-03 | Bombardier Transportation GmbH | Running gear with a single pair of independent left and right wheels and lateral stop means, and associated low floor rail vehicle |
| EP3812236A1 (en) * | 2018-11-22 | 2021-04-28 | Bombardier Transportation GmbH | Lateral buffer system for a rail vehicle and associated rail vehicle |
| US11420658B2 (en) | 2018-11-22 | 2022-08-23 | Bombardier Transportation Gmbh | Running gear with a single pair of independent left and right wheels and lateral stop means, and associated low floor rail vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |