CN105270428B - Low floor vehicle axis bridge and the low-floor bogie for being equipped with the axis bridge - Google Patents
Low floor vehicle axis bridge and the low-floor bogie for being equipped with the axis bridge Download PDFInfo
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- CN105270428B CN105270428B CN201510658220.8A CN201510658220A CN105270428B CN 105270428 B CN105270428 B CN 105270428B CN 201510658220 A CN201510658220 A CN 201510658220A CN 105270428 B CN105270428 B CN 105270428B
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Abstract
The present invention relates to a kind of low floor vehicle axis bridge and the low-floor bogie of the axis bridge is installed, independent wheel is installed on bogie, axis bridge is installed between opposite independent wheel, axis bridge includes two symmetrically arranged spindle nose components, by two parallel horizontal beam connection composition tower structures between two spindle nose components, the connecting seat for being connect with wheel and the spring mounting seat for installing primary spring are both provided in two spindle nose components.The present invention can reduce the height of bogie under the premise of ensureing the overall construction intensity and rigidity of axis bridge, save bogie space since axis bridge uses frame structure.
Description
Technical field
The present invention relates to a kind of axis bridge used on the rail vehicle, more particularly to a kind of low floor vehicle axis bridge, together
When be related to that the low-floor bogie of the axis bridge is installed, belong to rail vehicle manufacturing technology field.
Background technology
Low floor vehicle is one of important tool of urban track traffic, the independent rotation of existing low-floor rail vehicle
It is generally made of to frame components such as framework, axis bridge, elastic wheel, single stage suspension device, secondary suspension device and driving motors, structure
Frame is made of two curb girders and intermediate crossbeam, and driving motor drives vehicle wheel rotation to drive vehicle traveling, two opposite wheels
Between connect by axis bridging, axis bridge plays a part of between the entire car body of support and bogie spring, sprung weight.To ensure vehicle fortune
Capable safety and comfort, while ensureing the advantage of low-floor, there is higher requirement to the structural behaviour of axis bridge.
Existing low-floor rail vehicle bogie, such as a kind of Chinese patent " steering of Patent No. 20131021412.8
Disclosed in frame ", the camber beam that axis bridge is mainly taken the shape of the letter U by one forms, and welds that there are four for installing again at the both ends of camber beam
The mounting base of primary spring, since intermediate camber beam is one, in order to ensure the structural strength and rigidity of entire axis bridge, it is necessary to
The thickness for increasing camber beam, in this way, with regard to the height of relative increase low-floor bogie.
Invention content
Present invention is primarily aimed at solving the above problems and insufficient, bogie height can be further decreased by providing one kind
Degree, and can guarantee the low floor vehicle axis bridge of overall construction intensity and rigidity.
Another main purpose of the present invention is, provides a kind of bogie being equipped with above-mentioned axis bridge.
To achieve the above object, the technical scheme is that：
A kind of low floor vehicle axis bridge, including two symmetrically arranged spindle nose components pass through between two spindle nose components
Two parallel horizontal beam connection composition tower structures, are both provided in two spindle nose components for being connect with wheel
Connecting seat and spring mounting seat for installing primary spring.
Further, the main body of the spindle nose component is made of vertical component effect and horizontal part, and the connecting seat is vertically fixed on institute
It states on vertical component effect, the horizontal part takes the shape of the letter U, and the front end of U-shaped is connect with two horizontal beams, is extended outwardly on the horizontal part
Go out two symmetrical shoulders, the spring mounting seat is set on each shoulder.
Further, it is installed with brake clamp fixed seat on the vertical component effect in the spindle nose component.
Further, arc-shaped transition connects between the position and horizontal part of the shoulder.
Further, two spindle nose components and two horizontal beam monoblock casts are made.
Further, the spindle nose component monoblock cast is made, and the horizontal beam is or is welded by metallic plate splicing, institute
It states and is welded to connect between spindle nose component and horizontal beam.
Further, the section of the horizontal beam is I-shaped or is square shape.
Further, tying gear reference plane is provided on the horizontal part by each spring mounting seat.
The present invention another technical solution be：
A kind of low-floor bogie, is equipped with independent wheel, is equipped between opposite independent wheel as described above
Low floor vehicle axis bridge.
Further, the independent wheel is elastic wheel, including core wheel, wheel rim and elastomer block, and the elastomer block setting exists
Between core wheel and wheel rim.
To sum up content, a kind of low floor vehicle axis bridge of the present invention and the low-floor for being equipped with the axis bridge turn to
Frame, axis bridge use frame structure, can reduce the height of bogie under the premise of ensureing the overall construction intensity and rigidity of axis bridge
Degree saves bogie space.
Description of the drawings
Fig. 1 is one axis bridge structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the overlooking structure diagram of Fig. 1；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is one axis bridge of the embodiment of the present invention and the structural schematic diagram after wheel installation；
Fig. 5 is two axis bridge structural schematic diagram of the embodiment of the present invention；
Fig. 6 is the independent wheel structural schematic diagram in the embodiment of the present invention four.
As shown in Figures 1 to 6, independent wheel 1, axis bridge 2, spindle nose component 3, vertical component effect 3a, horizontal part 3b, shoulder 3c, water
Flat-topped ridge 4, connecting seat 5, spring mounting seat 6, bearing 7, shaft end big nut 8, brake clamp fixed seat 9, hole 10, a tying keep off benchmark
Face 11, core wheel 12, wheel rim 13, elastomer block 14, wheel rim 15, tread 16, braking surface 17, taper surface 18, annular slot 19, pressure ring
20, inclined-plane 21, inclined-plane 22, the first rib 23, the second rib 24, third rib 25, step-like structure 26, earthing or grounding means 27 is recessed
Cavity configuration 28, concave inward structure 29, opening 30, brake disc 31, bolt 32.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：
Embodiment one：
As shown in figures 1 to 6, a kind of low-floor bogie, including framework (not shown), are architecturally equipped with four
A independent wheel 1 is equipped with axis bridge 2 between two opposite independent wheels 1, four is equipped between each axis bridge 2 and framework
A primary spring (not shown).
As shown in Figure 1 to Figure 3, in the present embodiment, axis bridge 2 includes two symmetrically arranged spindle nose components 3, two spindle nose groups
By two parallel connection composition tower structures of horizontal beam 4 between part 3, it is both provided with and is used in each spindle nose component 3
The connecting seat 5 being connect with independent wheel 1 and two spring mounting seats 6 for installing primary spring.
The structure of two spindle nose components 3 is identical, and the main body of spindle nose component 3 is made of vertical component effect 3a and horizontal part 3b,
The section of main body is generally L-shaped.To ensure the integral strength and bearing capacity of spindle nose component 3, vertical component effect 3a is using triangle
The bottom edge of structure, triangle is connect with horizontal part 3b, under the premise of ensureing vertical component effect 3a structural strengths, is arranged on vertical component effect 3a
There are one or it is multiple opening 30, to mitigate the weight of entire axis bridge.A connecting seat 5 is connected in the side of each vertical component effect 3a,
Connecting seat 5 is connect with the independent wheel 1 of respective side.
Horizontal part 3b takes the shape of the letter U, and the front end of U-shaped two sides and the end of two horizontal beams 4 are separately connected.In U-shaped level
One is also respectively provided on two sides of portion 3b, and slightly the part of protrusion, the upper surface of the part keep off reference plane for a tying upwards
11, it is architecturally also correspondingly provided with a reference plane (not shown), falls after vehicle the gap measured between two reference planes, with
Determine the vertical backstop gap between axis bridge 2 and framework.
Respectively extend a shoulder 3c to both sides on horizontal part 3b, two shoulder 3c are symmetrical arranged, in each shoulder 3c
One spring mounting seat 6 of upper setting, spring mounting seat 6 are the round hole of the bottom lock with step-like structure, step structure
Top half diameter be more than lower half portion diameter, primary spring be mounted on spring mounting seat 6 in.The position of shoulder 3c with
It is all connected by the way of arc-shaped transition between the horizontal part 3b of connection, not only plays the role of reinforcing rib, can also played and subtract
Few local stress, the effect for improving fatigue resistance.There are one or more concave inward structures 29 on the side wall of shoulder 3c, it can be with
In the case where ensureing the requirement of structural strength and rigidity, the weight of horizontal beam 4 is reduced, and then mitigate the total weight of axis bridge 2, to reduce spring
Lower quality.
The two side of horizontal beam 4 respectively has the curved cavity 28 to beam center position indent, and it is " work " to form vertical section
The horizontal beam 4 of font, this structure are not only stablized, and strength and stiffness are good, can also be in the requirement for ensureing structural strength and rigidity
Under, the weight of horizontal beam 4 is reduced, and then mitigate the total weight of axis bridge 2, to reduce unsprung mass.
In the present embodiment, the tower structure being made of spindle nose component 3 and horizontal beam 4 is preferably used by cast steel monoblock cast
Technique be made, i.e. the vertical component effect 3a of spindle nose component 3, horizontal part 3b, two shoulder 3c, connecting seat 5, spring mounting seat 6 and two
4 monoblock cast of a horizontal beam is integrally formed, ensures the intensity and rigidity of total, also simplify the overall structure of axis bridge 2,
Production efficiency is improved, is effectively reduced cost.
Since axis bridge 2 is using the structure of frame-type, in the case where ensureing the requirement of structural strength and rigidity, it is possible to reduce horizontal beam
4 thickness, you can to reduce the height of entire axis bridge 2, and height of the vehicle floor apart from rail level can be further decreased in turn,
Save bogie space.
As shown in figure 4, independent wheel 1 uses elastic wheel, elastic wheel is by 14 groups of core wheel 12, wheel rim 13 and elastomer block
At wheel rim 13 has centre bore, and core wheel 12 is wheel rim 15 in the centre bore of wheel rim 13, on the excircle of wheel rim 13 and steps on
Face 16, elastomer block 14 are arranged between core wheel 12 and wheel rim 13, and elastomer block 14 is the rubber block with Noise Reduction, connecting seat 5
It is connect by bearing 7 between independent wheel 1, bearing 7 is mounted in 12 inner ring of core wheel of independent wheel 1, and connecting seat 5 is mounted on
In bearing 7, the outer end of connecting seat 5 is fixed by shaft end big nut 8 and rotation stop gasket, ensures that connection is reliable, in independent wheel 1
Core wheel 12 on pass through multiple bolts 32 be fixedly mounted brake disc 31.
There are three holes 10 for setting on the vertical plane of the both sides horizontal part 3b in spindle nose component 3, wherein two holes 10 are spiral shell
Pit for installing the attachment on bogie, such as sand spraying apparatus, sweeps stone implement, magnetic rail brake device, another hole 10 is positioning pin
Hole installs positioning pin, avoids bolt by shearing force, ensure the service life of bolt, and then ensure traffic safety.
Embodiment two：
As shown in figure 5, with embodiment one the difference is that, can be in spindle nose component 3 according to the installation site of brake disc
In vertical component effect 3a on be fixedly mounted brake clamp fixed seat 9, brake clamp fixed seat 9 can with by spindle nose component 3 and level
The tower structure integrally casting shaping that beam 4 forms.
Embodiment three：
The difference is that, spindle nose component 3 is used the technique integrally casting shaping of monoblock cast by cast steel with embodiment one,
And horizontal beam 4 is then used and is welded by metallic plate splicing, horizontal beam 4 is by the slot beam and one piece of bridge welding that a section is U-shaped
It connects, forms the horizontal beam 4 that a section is " mouth " font.In the case where ensureing the requirement of structural strength and rigidity, mouth " font
Horizontal beam 4 can reduce the weight of horizontal beam, and then mitigate the total weight of axis bridge 2, reduce unsprung mass.Horizontal beam 4 can be with
It is manufactured using the technique of forging.
It is fixedly connected by welding between two front ends and the end of horizontal beam 4 of horizontal part 3b in spindle nose component 3.
This structure can reduce the difficulty of casting technique, reduce cost, and axis bridge 2 is also made to have enough fatigue strength, craftsmanship good
It is good.
Example IV：
With embodiment one the difference is that, in the present embodiment, as shown in fig. 6, independent wheel 1 use elastic wheel, bullet
Property wheel be made of core wheel 12, wheel rim 13 and elastomer block 14, elastomer block 14 be arranged between core wheel 12 and wheel rim 13, elastomer block 14
It is the rubber block with Noise Reduction, there is wheel rim 13 centre bore, core wheel 12 to be mounted in the centre bore of wheel rim 13, wheel rim 13
It is wheel rim 15 and tread 16 on excircle.
In the present embodiment, it is preferable that the both side surface of wheel rim 13 is being braked as the braking surface 17 coordinated with brake clamp
When, implement to brake from the braking surface 17 of 13 both sides of both sides clamping rim using the brake clamp on axis bridge 2, it is no longer necessary to
In addition brake disc is installed in the outside of wheel, not only overall structure is simple, also as save occupied space, while also reducing into
This.
There is the V-shaped taper surface 18 outwardly protruded on the inner peripheral surface of wheel rim 13, there is a ring on core wheel 12
Shape slot 19, installs the pressure ring 20 for fixing an annular in annular slot 19, and pressure ring 20 is fixed by screw (not shown)
On core wheel 12, there is an inclined-plane 21 on the outer circumference surface of core wheel 12, also there is an inclined-plane 22,21 He of inclined-plane on pressure ring 20
Inclined-plane 22 is symmetrical set, and the outer edge in 18 both sides of taper surface of wheel rim 13 is respectively protruding with the first rib to 12 direction of core wheel
23, the outer edge on the inclined-plane of core wheel 12 21, which has to 13 direction of wheel rim, is protruding with the second rib 24, on the inclined-plane of pressure ring 20 22
Outer edge also have and to 13 direction of wheel rim be protruding with third rib 25, by the taper surface 18 of wheel rim 13 and the first rib 23, wheel
It is V-arrangement that inclined-plane 21 on the heart 12 and the inclined-plane 22 on the second rib 24, pressure ring 20 and third rib 25 surround a section jointly
Annular chamber, elastomer block 14 are fixedly mounted in annular chamber.When installation, elastomer block 14 is mounted between core wheel 12 and wheel rim 13,
After core wheel 12 and wheel rim 13 fasten, pressure ring 20 is mounted in annular slot 19, screw be used in combination that pressure ring 20 is fixed on core wheel
On 12, that is, the assembling of elastic wheel is completed, assembling process is simple and convenient, and solid and reliable.
The width of the tread 16 of 13 excircle of wheel rim is the normal width coordinated with track, if entire wheel rim 13 is using system
One width, can make the narrower width for the elastomer block 14 being mounted between core wheel 12 and wheel rim 13, and then can influence elastomer block 14
Radial rigidity value, therefore, in order to ensure the radial rigidity of elastomer block 14,13 excircle tread 16 of wheel rim side be arranged one
Step-like structure 26 broadens the width of wheel rim 13, and the width of 13 inner peripheral surface of wheel rim is made to be more than the width of excircle tread 16,
The vertical height of step-like structure 26 is greater than or equal to the maximum abrasion loss of wheel, can not only ensure the diameter of elastomer block 14 in this way
To rigidity, meet the rigidity requirement of elastomer block, and clamped when heat in brake clamp, the wheel rim 13 widened can have more
Good heat conductivility, heat dissipation effect can be more preferable, can ensure vehicle operational safety to avoid fire check is generated.
The side surface of 13 both sides of wheel rim respectively can also extend a reinforcement (not shown) outward respectively again, thicken
Partial outer surface is as braking surface 17.When brake clamp clamping rim 13 is implemented to brake, the abrasion of wheel rim 13 can be caused, are added
Thickness portion can provide enough abrasion loss, improve the service life of wheel rim 13.
Earthing or grounding means 27 is installed on the lateral surface of core wheel 12, earthing or grounding means 27 is fixed by screws on core wheel 12,
To facilitate the conduction of electric current, and it is convenient for daily maintenance.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.In every case it is not de-
Content from technical solution of the present invention, according to the technical essence of the invention to made by above example it is any it is simple modification, etc.
With variation and modification, in the range of still falling within technical solution of the present invention.
Claims (7)
1. a kind of low floor vehicle axis bridge, it is characterised in that：Including two symmetrically arranged spindle nose components, two spindle nose components
Between by two parallel horizontal beams connection composition tower structures, be both provided in two spindle nose components for
The connecting seat of wheel connection and the spring mounting seat for installing primary spring, the main body of the spindle nose component is by vertical component effect and water
Flat portion's composition, the connecting seat are vertically fixed on the vertical component effect, and the horizontal part takes the shape of the letter U, the front end of U-shaped and two water
Flat-topped ridge connects, and two symmetrical shoulders are extended outward on the horizontal part, the spring is arranged on each shoulder
Mounting base is respectively arranged with a part to raise up on two sides of U-shaped horizontal part, and the upper surface of the projection portion is
One tying keeps off reference plane, is architecturally also correspondingly provided with a reference plane, falls after vehicle the gap measured between two reference planes, with
Determine the vertical backstop gap between axis bridge and framework.
2. low floor vehicle according to claim 1 axis bridge, it is characterised in that：Vertical component effect in the spindle nose component
On be installed with brake clamp fixed seat.
3. low floor vehicle according to claim 1 axis bridge, it is characterised in that：The position of the shoulder and horizontal part it
Between arc-shaped transition connect.
4. low floor vehicle according to claim 1 axis bridge, it is characterised in that：Two spindle nose components and two water
Flat-topped ridge monoblock cast is made.
5. low floor vehicle according to claim 1 axis bridge, it is characterised in that：The spindle nose component monoblock cast system
At the horizontal beam is to be welded by metallic plate splicing, is welded to connect between the spindle nose component and horizontal beam.
6. low floor vehicle according to claim 1 axis bridge, it is characterised in that：The section of the horizontal beam is I-shaped
Or it is square shape.
7. a kind of low-floor bogie, is equipped with independent wheel, it is characterised in that：Between opposite independent wheel installation just like
Claim 1-6 any one of them low floor vehicle axis bridge, the independent wheel are elastic wheel, including core wheel, wheel rim
And elastomer block, the elastomer block are arranged between core wheel and wheel rim, it is useful in the side setting of the excircle tread of the wheel rim
In the step-like structure of extension rim width, the both side surface of wheel rim widened section as the braking surface coordinated with brake clamp,
The both side surface that brake clamp clamping rim is widened when braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658220.8A CN105270428B (en) | 2015-10-12 | 2015-10-12 | Low floor vehicle axis bridge and the low-floor bogie for being equipped with the axis bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510658220.8A CN105270428B (en) | 2015-10-12 | 2015-10-12 | Low floor vehicle axis bridge and the low-floor bogie for being equipped with the axis bridge |
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| Publication Number | Publication Date |
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| CN105270428A CN105270428A (en) | 2016-01-27 |
| CN105270428B true CN105270428B (en) | 2018-08-03 |
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| CN201510658220.8A Active CN105270428B (en) | 2015-10-12 | 2015-10-12 | Low floor vehicle axis bridge and the low-floor bogie for being equipped with the axis bridge |
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Cited By (1)
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| EP3885230A4 (en) * | 2018-11-19 | 2022-01-19 | Crrc Tangshan Co., Ltd. | Bogie and rail vehicle |
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| IT201600088005A1 (en) * | 2016-08-30 | 2018-03-02 | Lucchini Rs Spa | AXLE-AXLE OF RAILWAY AND RAILWAY VEHICLES WITH REDUCED FLOOR |
| CN106347342A (en) * | 2016-08-31 | 2017-01-25 | 芜湖市和蓄机械股份有限公司 | Brake bracket |
| CN107719012A (en) * | 2017-10-31 | 2018-02-23 | 中车资阳机车有限公司 | A kind of overhead rail vehicle running gear |
| CN111196288B (en) * | 2018-11-19 | 2021-03-19 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
| CN112643296B (en) * | 2020-12-22 | 2022-09-20 | 太原重工轨道交通设备有限公司 | Manufacturing method for forge welding shaft bridge |
| CN112678012B (en) * | 2021-01-07 | 2022-08-30 | 中车青岛四方机车车辆股份有限公司 | Bogie axle bridge, wheel shaft system and bogie |
| DE102022116085A1 (en) * | 2022-06-28 | 2023-12-28 | Bochumer Verein Verkehrstechnik Gmbh | Multi-part rail wheel and wheel set for a rail vehicle, in particular a low-floor rail vehicle |
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