CN107719403A - Monoblock cast framework for the built-in metro bogie of axle box - Google Patents
Monoblock cast framework for the built-in metro bogie of axle box Download PDFInfo
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- CN107719403A CN107719403A CN201710889760.6A CN201710889760A CN107719403A CN 107719403 A CN107719403 A CN 107719403A CN 201710889760 A CN201710889760 A CN 201710889760A CN 107719403 A CN107719403 A CN 107719403A
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- Prior art keywords
- curb girder
- framework
- side rail
- axle box
- box
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/28—Axle-boxes integral with, or directly secured to, vehicle or bogie underframes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Monoblock cast framework for the built-in metro bogie of axle box belongs to the frame apparatus field of rail vehicle truck, it includes crossbeam unit and two side rail elements, two side rail element parallel and symmetricals are arranged in the both sides of crossbeam unit, and the cast technique of its three is integrally formed.Weld seam quantity is greatly reduced in the monoblock cast framework of the present invention, improves the overall construction intensity and fatigue strength of framework；The train bogie of framework of the present invention is applied, its minimum curve is reduced at least 36 meters by radius, and thus greatly improves turning mobility and the flexibility of this new bogie；Curb girder gear box bracket is arranged on side rail element, gear-box suspension rod can be ensured at utmost close to gearbox shaft, reduce shaft coupling addendum modification, so as to reduce the space-consuming of drive device, in addition, the structure can also avoid the long cantilever structure of gear box bracket, to overcome the drawbacks of old long cantilever structure fatigue strength is poor, service life is shorter.
Description
Technical field
The invention belongs to the frame apparatus field of rail vehicle truck, and in particular to one kind is used for the built-in subway of axle box
The monoblock cast framework of bogie.
Background technology
The framework of existing bogies for railway vehicles is typically axle box external bogie, as shown in Figure 1 to Figure 3, common
Axle box external bogie be a kind of welded frame of approximate H fonts, the basic composition of its framework includes two longerons 2, two
Individual crossbeam 1 and the H type structures that the curb girder 3 at the both ends of crossbeam 1 is welded are fixed on, each crossbeam 1 includes two seamless steel pipes
1-1, gear box bracket 1-2, motor hanger 1-3 and one group of drawing pull bar seat 1-4, two seamless steel pipe 1-1 are parallel to each other, secondly
The spacing of person is bridged and fixed by two parallel longerons 2 respectively.Gear box bracket 1-2 and motor hanger 1-3 are respectively positioned on horizontal stroke
The outside of beam 1, one group of drawing pull bar seat 1-4 are fixed on the top in the stage casing of crossbeam 1 and are located at gear box bracket 1-2 and motor hanger
Between 1-3.The both ends of longeron 2 are connected with two crossbeams 1 respectively, and the upper end stage casing of longeron 2 is provided with framework transverse direction backstop 2-1,
The one end of longeron 2 is provided with a transverse damper seat 2-2.Two crossbeams 1 using the vertical rotary shaft z of framework as center of rotational symmetry,
It is mutually rotating symmetrical with same pivot and angle of circumference by 180 ° of angle of circumference rotational symmetry, two longerons 2 each other.
Curb girder 3 is to weld the box integral solder structure that form, cross section is square-section by multi-sheets split group, its
Generally including air spring seat 3-1 and two cantilevers, two cantilevers are located at air spring seat 3-1 both ends respectively, and to both sides
Stretching, extension forms wing structure.It is fixed that each cantilever includes braking flap seat 3-4, primary spring seat 3-3, wing bridge section 3-2, wheel shaft
Position seat 3-5, primary spring seat 3-3 are connected by wing bridge section 3-2 with air spring seat 3-1, and braking flap seat 3-4 is fixed on wing bridge section
3-2 inner side, wheel shaft positioning seat 3-5 are fixed on wing bridge section 3-2 lower section.Brake flap seat 3-4 by braking flap seat cantilever 3-4-1 and
Braking flap seat pedestal 3-4-2 is collectively formed.
As shown in Fig. 2 air spring seat 3-1 lateral wall be also respectively fixedly connected one resist snakelike damper flap seat 3-6 and
One anti-side rolling torsion rod seat 3-7.Two curb girders 3 are symmetrical on the integrally-built x-axis of bogie, and pass through respective air respectively
Spring base 3-1 is fixed on the both ends of two crossbeams 1, and whole framework passes through welded shaping.
It is structure to bogie, strong however, the bend such as subway is more, the less subway orbital environment of circuit radius of turn
The technical parameters such as degree, weight and smallest curve radius propose new high standards, for example, certain new subway project is set
Meter requires proposition, and under 30g shock loadings, its static strength is no more than the 50% of yield strength, turned to the subway bogie frame
The minimum curve of frame is 36 meters by radius.And old axle box external H font welded frames as shown in Figure 1 to Figure 3, it is only
The 100% examination parameter for being no more than the yield strength of material under 20g shock loadings, the tradition of its axle box external can be met
Frame construction makes its minimum curve be at least 100 meters by radius, moreover, in order to ensure the structural strength of welded frame, its steel
Wooden partition thickness is at least 20 millimeters, and the average of bogie overall weight is about 1.6 tons, and the axial span of two curb girder 3 is at least
1300 millimeters, these existing index parameters make it that traditional framework of the axle box external is heavy, roomy, smallest curve radius
Can not further reduce, can not meet the design requirement of novel subway circuit, and its weld fatigue intensity also it is inevitable over time
Passage and progressively decline, it is cracked to even result in framework critical welding seams, is also unfavorable for traffic safety.
Therefore, be badly in need of research and development it is a it is compact-sized, weight is small, intensity is high, smallest curve radius meets design objective requirement
Novel steering framework frame.
The content of the invention
It is only capable of meeting to be no more than material under 20g shock loadings to solve old axle box external H font welded frames
Yield strength 100% examination parameter, traditional frame construction of its axle box external makes it in intensity, weight and most Chinese yeast
The technical indicators such as line radius can not meet the technical problem of the design requirement of new metro project simultaneously, and the present invention provides a kind of
Monoblock cast framework for the built-in metro bogie of axle box.
The technical solution adopted for solving the technical problem of the present invention is as follows：
For the monoblock cast framework of the built-in metro bogie of axle box, it includes crossbeam unit and two side rail elements,
Two side rail element parallel and symmetricals are arranged in the both sides of crossbeam unit, and the cast technique of its three is integrally formed；
The crossbeam unit is hollow rectangular box, and its center is provided with kingpin hole, and two motor hanger units are in
The axis of heart pin-and-hole is axle center, is symmetrically arranged in by the angle of circumference of 180 degree on the outside of two X axis of crossbeam unit each other
On wall；
The side rail element is hollow rectangular box, and it includes needle beam and two trapezoidal axle-box locatings in the middle part of curb girder
Frame, two trapezoidal axle box postings are symmetrically arranged in the both ends of needle beam in the middle part of curb girder；
Needle beam includes pantagraph current collector mounting seat, sleeper beam connecting seat, two braking mounting seats, curb girder gears in the middle part of the curb girder
Case flap seat and two sleeper beam backstops；Sleeper beam connecting seat is arranged at the center of needle beam upper surface in the middle part of curb girder, pantagraph current collector mounting seat
The center of needle beam lateral wall in the middle part of curb girder is arranged at, two braking mounting seats are symmetrically arranged at the two of pantagraph current collector mounting seat
Side；
Opening down, the domatic side wall on its trapezoidal stringcourse and the small horizontal stroke in the middle part of curb girder of the trapezoidal axle box posting
Beam is connected and is integrally formed；The bottom of trapezoidal two domatic side walls of axle box posting is equipped with coaxial horizontal insertion axle-box locating bar
Axis hole；
The curb girder gear box bracket is located at the top of one of stringcourse of trapezoidal axle box posting, and curb girder gear
The side wall end face of the openend of case flap seat vertically another curb girder；
Two curb girder gear box brackets being located on two side rail elements, using the axis of kingpin hole as axle both it
The heart, symmetrically it is arranged in the both sides of crossbeam unit by the angle of circumference of degree each other；Two motor hanger cell distributions are in casting
First and third quadrant of framework, and two curb girder gear box brackets are distributed in second and fourth quadrant of casting framework, it is each
Individual side rail element is provided only with a sleeper beam backstop, and sleeper beam backstop is located at needle beam and trapezoidal axle box posting in the middle part of its corresponding curb girder
Above the connecting portion of the two；Sleeper beam backstop on two side rail elements is respectively positioned at the third and fourth quadrant of casting framework.
The steel plate wall thickness of the crossbeam unit and two side rail elements is 16 millimeters, and the gross mass of monoblock cast framework is small
In 1.1 tons；Span between two side rail elements is 1165 millimeters.
Beneficial effects of the present invention are as follows：
The monoblock cast framework includes crossbeam unit and two side rail elements, arranges to two side rail element parallel and symmetricals
In the both sides of crossbeam unit, the cast technique of its three is integrally formed, and so as to which weld seam quantity be greatly decreased, improves the entirety of framework
Structural strength and fatigue strength.
The trapezoidal axle box posting of side rail element is directly used in fast pulley to two built-in axles on device；Two sides
Beam gear box bracket is symmetrically arranged in crossbeam list by the angle of circumference of 180 degree each other using the axis of kingpin hole as axle center
The both sides of member；Two motor hanger cell distributions are in first and third quadrant of casting framework, and two curb girder gear box brackets
Second and fourth quadrant of casting framework are distributed in, can be to being installed in kingpin hole by the layout designs of the rotational symmetry
Sleeper beam structure play balance and corner locating effect.The steel plate wall thickness of crossbeam unit and two side rail elements is 16 millis
Rice, hollow casting thin-wall is designed to ensure that the gross mass of monoblock cast framework is less than 0.5 ton, and it is in 30g shock loadings
Under, meet that static strength is no more than 50% Structural strength calls of yield strength；Span between two side rail elements is 1165 millis
Rice, the design can reduce the addendum modification of gear-box shaft coupling, shorten shaft coupling to greatest extent, so as to reduce layout and motor
The space-consuming of drive system between flap seat unit and curb girder gear box bracket, and shorten axle box spacing and car of the wheel to device
Spacing is taken turns, therefore may be such that overall space shared by the drive devices such as motor and gear-box is reduced to by old 1080 millimeters
940 millimeters, and then the train for applying the built-in axle mechanism for the built-in bogie of axle box of the present invention is turned to
Frame, its minimum curve significantly will be reduced at least 36 meters by radius by old at least 100 meters, and it is new thus to greatly improve this
The turning mobility of type bogie and flexibility.
Curb girder gear box bracket is arranged on side rail element, and gear-box suspension rod can be ensured at utmost close to gear-box
Axle, reduce shaft coupling addendum modification, so as to reduce the space-consuming of drive device, in addition, the structure can also avoid gear-box from hanging
The long cantilever structure of seat, to overcome the drawbacks of old long cantilever structure fatigue strength is poor, service life is shorter.
Trapezoidal axle box posting can accommodate the new-type wheel for being similarly trapezium structure to built-in axle, so that this is new-type
The cooperation of axle box and bearing is able to locally be carried using the first half and is engaged, and lower half wide arc gap coordinates brand new form,
So as to greatly improve the load-bearing stress distribution of axle box, be advantageous to improve the service life of axle box and wheel pair, meanwhile, trapezoidal axle box is determined
Position frame can substitute axle box protective cover and directly play a part of protecting axle box, and facilitate the equipment such as bearing and axle box vibration damping sheet
Current check.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of old axle box external H type welded frames；
Fig. 2 is the upward view of old axle box external H type welded frames；
Fig. 3 is stereogram of the old axle box external H types welded frame under another visual angle；
Fig. 4 is the stereogram for the monoblock cast framework that the present invention is used for the built-in metro bogie of axle box；
Fig. 5 is the partial enlarged drawing of I parts in Fig. 4；
Fig. 6 is the top view for the monoblock cast framework that the present invention is used for the built-in metro bogie of axle box.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
As shown in Figures 4 to 6, the present invention includes crossbeam list for the monoblock cast framework of the built-in metro bogie of axle box
Member 4 and two side rail elements 5, two parallel and symmetricals of side rail element 5 are arranged in the both sides of crossbeam unit 4, and its three is cast
Technique is integrally formed, and so as to which weld seam quantity be greatly decreased, improves the overall construction intensity and fatigue strength of framework.
Crossbeam unit 4 is hollow rectangular box, its center be provided with kingpin hole 4-1, two motor hanger unit 4-2 with
Kingpin hole 4-1 axis is axle center, is symmetrically arranged in two X-axis of crossbeam unit 4 by the angle of circumference of 180 degree each other
In outside side wall.Side rail element 5 is hollow rectangular box, and it includes needle beam 5-1 and two trapezoidal axle boxes in the middle part of curb girder and determined
Position frame 5-2, two trapezoidal axle box posting 5-2 are symmetrically arranged in the both ends of needle beam 5-1 in the middle part of curb girder, and its three is by founder
Skill is integrally formed.
Needle beam 5-1 includes pantagraph current collector mounting seat 5-1-1, sleeper beam connecting seat 5-1-2, two braking mounting seats in the middle part of curb girder
5-1-3, curb girder gear box bracket 5-1-4 and two sleeper beam backstop 5-1-5, it is integrally formed by casting technique.Sleeper beam
Connecting seat 5-1-2 is arranged at the center of needle beam 5-1 upper surfaces in the middle part of curb girder, and pantagraph current collector mounting seat 5-1-1 is arranged in curb girder
The center of portion's needle beam 5-1 lateral walls, two braking mounting seat 5-1-3 are symmetrically arranged at the two of pantagraph current collector mounting seat 5-1-1
Side.
Trapezoidal axle box posting 5-2's is opening down, the domatic side wall on its trapezoidal stringcourse and small horizontal stroke in the middle part of curb girder
Beam 5-1 is connected and is integrally formed.The bottom of two domatic side walls of trapezoidal axle box posting 5-2 is equipped with coaxial horizontal insertion axle box
Locating rod axis hole 5-2-1, it is used for fast pulley to two built-in axles on device.
Curb girder gear box bracket 5-1-4 is located at the top of trapezoidal axle box posting 5-2 one of stringcourse, and curb girder
The side wall end face of gear box bracket 5-1-4 openend vertically another curb girder.
Each curb girder gear box bracket 5-1-4 on two side rail elements 5, with kingpin hole 4-1's both it
Axis is axle center, is symmetrically arranged in the both sides of crossbeam unit 4 by the angle of circumference of 180 degree each other.With the XY axles shown in Fig. 6
Plane right-angle coordinate is as basis of reference, if the rectangular area in the round dot o upper right corner is first quartile, the round dot o upper left corners it is straight
Angular zone is the second quadrant, and the sequentially quadrant of recursion third and fourth counterclockwise, then：Two motor hanger unit 4-2
First and third quadrant of casting framework are distributed in, and two curb girder gear box bracket 5-1-4 are distributed in the second of casting framework
And fourth quadrant, by the layout designs of the rotational symmetry torsion can be played to the sleeper beam structure being installed in kingpin hole 4-1
Square balances and corner locating effect.Each side rail element 5 is provided only with a sleeper beam backstop 5-1-5, and sleeper beam backstop 5-1-5 is located at
In the middle part of its corresponding curb girder above needle beam 5-1 and both trapezoidal axle box posting 5-2 connecting portion；On two side rail elements 5
Sleeper beam backstop 5-1-5, should be designed for the double tractions of limitation homonymy externally positioned type respectively positioned at the third and fourth quadrant of casting framework
Pull bar to the reverse excessive amount of motion of drawbar pull, play the position limitation protection effect to drawing pull bar.
The steel plate wall thickness of crossbeam unit 4 and two side rail elements 5 is 16 millimeters, and hollow casting thin-wall is designed to protect
The gross mass for demonstrate,proving monoblock cast framework is less than 0.5 ton, and it meets that static strength is no more than yield strength under 30g shock loadings
50% Structural strength calls.Span between two side rail elements 5 is 1165 millimeters, and the design can reduce gear-box shaft coupling
The addendum modification of section, shortens shaft coupling to greatest extent, so as to reduce layout and motor hanger unit 4-2 and curb girder gear box bracket
The space-consuming of drive system between 5-1-4, and shorten axle box spacing and wheel spacing of the wheel to device, therefore may be such that electricity
Overall space shared by the drive device such as machine and gear-box is reduced to 940 millimeters by old 1080 millimeters, and then causes application
The train bogie of the built-in axle mechanism for the built-in bogie of axle box of the present invention, its minimum curve pass through radius
At least 36 meters significantly will be reduced to by old at least 100 meters, and thus greatly improve the turning mobility of this novel steering frame
And flexibility.
Curb girder gear box bracket 5-1-4 is arranged on side rail element 5, and gear-box suspension rod can be ensured at utmost close to tooth
Roller box axle, reduce shaft coupling addendum modification, so as to reduce the space-consuming of drive device, in addition, the structure can also avoid gear
The long cantilever structure of case flap seat, to overcome the drawbacks of old long cantilever structure fatigue strength is poor, service life is shorter.
Trapezoidal axle box posting 5-2 can accommodate the new-type wheel for being similarly trapezium structure to built-in axle, so that should
The cooperation of new-type axle box and bearing is able to locally be carried using the first half and is engaged, and lower half wide arc gap coordinates brand new shape
Formula, so as to greatly improve the load-bearing stress distribution of axle box, be advantageous to improve the service life of axle box and wheel pair, meanwhile, trapezoid shaft
Case posting 5-2 can substitute axle box protective cover and directly play a part of protecting axle box, and facilitate bearing and axle box vibration damping sheet
Etc. the current check of equipment.
Claims (2)
1. the monoblock cast framework for the built-in metro bogie of axle box, it is characterised in that：The casting framework includes crossbeam list
First (4) and two side rail elements (5), two side rail element (5) parallel and symmetricals are arranged in the both sides of crossbeam unit (4), thirdly
The cast technique of person is integrally formed；
The crossbeam unit (4) is hollow rectangular box, and its center is provided with kingpin hole (4-1), two motor hanger units
(4-2) is symmetrically arranged in crossbeam unit by the angle of circumference of 180 degree each other using the axis of kingpin hole (4-1) as axle center
(4) on two X axis lateral walls；
Side rail element (5) is hollow rectangular box, and it includes needle beam (5-1) and two trapezoidal axle box postings in the middle part of curb girder
(5-2), two trapezoidal axle box postings (5-2) are symmetrically arranged in the both ends of needle beam (5-1) in the middle part of curb girder；
Needle beam (5-1) includes pantagraph current collector mounting seat (5-1-1), sleeper beam connecting seat (5-1-2), two brakings in the middle part of the curb girder
Mounting seat (5-1-3), curb girder gear box bracket (5-1-4) and two sleeper beam backstops (5-1-5), sleeper beam connecting seat (5-1-2) are set
The center of needle beam (5-1) upper surface in the middle part of curb girder is placed in, pantagraph current collector mounting seat (5-1-1) is arranged at needle beam in the middle part of curb girder
The center of (5-1) lateral wall, two braking mounting seats (5-1-3) are symmetrically arranged at pantagraph current collector mounting seat (5-1-1) both sides；
The trapezoidal axle box posting (5-2) it is opening down, it is small in the middle part of domatic side wall on its trapezoidal stringcourse and curb girder
Crossbeam (5-1) is connected and is integrally formed；The bottom of two domatic side walls of trapezoidal axle box posting (5-2) is equipped with coaxial level and passed through
Axis case locating rod axis hole (5-2-1)；
The curb girder gear box bracket (5-1-4) is located at the top of one of stringcourse of trapezoidal axle box posting (5-2), and
The side wall end face of the openend of curb girder gear box bracket (5-1-4) vertically another curb girder；
Two curb girder gear box brackets (5-1-4) on two side rail elements (5) are using the axis of kingpin hole (4-1) as axle
The heart, symmetrically it is arranged in the both sides of crossbeam unit (4) by the angle of circumference of 180 degree each other；Two motor hanger units (4-2)
First and third quadrant of casting framework are distributed in, and two curb girder gear box brackets (5-1-4) are distributed in the of casting framework
Two and fourth quadrant, each side rail element (5) be provided only with a sleeper beam backstop (5-1-5), sleeper beam backstop (5-1-5) is located at it
In the middle part of corresponding curb girder above needle beam (5-1) and trapezoidal axle box posting (5-2) connecting portion of the two；Two side rail elements (5)
On sleeper beam backstop (5-1-5) respectively positioned at casting framework the third and fourth quadrant.
2. it is used for the monoblock cast framework of the built-in metro bogie of axle box as claimed in claim 1, it is characterised in that：It is described
The steel plate wall thickness of crossbeam unit (4) and two side rail elements (5) is 16 millimeters, and the gross mass of monoblock cast framework is less than 1.1
Ton；Span between two side rail elements (5) is 1165 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710889760.6A CN107719403B (en) | 2017-09-27 | 2017-09-27 | Monoblock cast framework for the built-in metro bogie of axle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710889760.6A CN107719403B (en) | 2017-09-27 | 2017-09-27 | Monoblock cast framework for the built-in metro bogie of axle box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107719403A true CN107719403A (en) | 2018-02-23 |
| CN107719403B CN107719403B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710889760.6A Active CN107719403B (en) | 2017-09-27 | 2017-09-27 | Monoblock cast framework for the built-in metro bogie of axle box |
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| CN (1) | CN107719403B (en) |
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| CN109436005A (en) * | 2018-11-23 | 2019-03-08 | 中车长春轨道客车股份有限公司 | Power truck built in high-speed EMUs axle box and the rail vehicle with the bogie |
| CN109664824A (en) * | 2018-11-28 | 2019-04-23 | 重庆长安汽车股份有限公司 | A kind of automobile middle control box structure |
| CN109664824B (en) * | 2018-11-28 | 2022-02-11 | 重庆长安汽车股份有限公司 | Automobile central control box structure |
| CN112693491A (en) * | 2021-01-22 | 2021-04-23 | 中车长春轨道客车股份有限公司 | External subway bogie of axle box with integrated form truck bloster and lift by crane strutting arrangement |
| CN113928362A (en) * | 2021-11-11 | 2022-01-14 | 中车长春轨道客车股份有限公司 | Framework device for built-in non-power bogie of axle box of high-speed motor train unit |
| CN113928362B (en) * | 2021-11-11 | 2024-05-14 | 中车长春轨道客车股份有限公司 | Framework device for built-in non-power bogie of axle box of high-speed motor train unit |
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|---|---|
| CN107719403B (en) | 2019-10-01 |
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