CN109249954A - The vertical stop part of High Speed Railway Trains bogie primary of novel built-in high-damping - Google Patents
The vertical stop part of High Speed Railway Trains bogie primary of novel built-in high-damping Download PDFInfo
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- CN109249954A CN109249954A CN201710778502.0A CN201710778502A CN109249954A CN 109249954 A CN109249954 A CN 109249954A CN 201710778502 A CN201710778502 A CN 201710778502A CN 109249954 A CN109249954 A CN 109249954A
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- Prior art keywords
- vertical
- stop part
- vertical stop
- high speed
- speed railway
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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
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of vertical stop parts of High Speed Railway Trains bogie primary of novel built-in high-damping, for High Speed Railway Trains, the direction of travel of High Speed Railway Trains is longitudinal, it is laterally with the longitudinally perpendicular direction, direction vertical with the longitudinal direction and the transverse direction is vertical simultaneously, and High Speed Railway Trains include axle box and bogie.One of high-damping built in the present invention be vertical stop part include can with the stop section of bogie cooperating, the fixed part that can be connect with axle box and connect stop section and fixed part interconnecting piece, the one of novel built-in high-damping is that vertical stop part is vertically arranged, and is equipped with one or one or more notch being vertically arranged.One of high-damping built in the present invention is that vertical stop part is avoided that and resonates with axle box, and reduces vibrational energy.
Description
Technical field
The present invention relates to High Speed Railway Trains bogie technique fields, more particularly to a kind of high speed of novel built-in high-damping
The vertical stop part of railroad train bogie primary.
Background technique
Relative motion between bogie and axle box in order to make high-speed rail train is kept in a certain range, to improve train
Traveling comfort and safety, it usually needs a kind of component for limiting vertical deviation is set on the axle box of train.Nineteen fifty,
Nelsen et al. (Safety support for brake beams.US 2,496,015,1950) will be turned using chain structure
It is connected on bogie to the brake beam (brake beam) of frame, for limiting the maximum vertical deviation of brake beam and falling off.
In passenger train, a kind of safety jaw of inverted U-shaped structure is generallyd use to prevent axle box from falling off and limiting maximum vertical deviation.
But the board-like safety hanger on bogie is easy to happen due to bearing larger alternation longitudinal direction dynamic stress during train operation
Fracture, so that the limitation of vertical deviation is failed.
In terms of bullet train, CRH5 type train is one of vehicle money of China Railway High-speed train, is adapted in Chinese low temperature
Area walking, service speed reach as high as 250 kilometers of speed per hour.It is vertical backstop equipped with one on CRH5 type train bogie
Part is to avoid vertical relative displacement excessive between bogie and axle box, as shown in Figure 1.But these components at runtime due to
The influence of actual path is easy to happen disabler caused by transverse breakage.Accordingly, with respect to one be vertical stop part structure
Optimization is urgent problem to be solved in the design of High Speed Railway Trains engineer equipment, to the stationarity and safety of train in high-speed cruising
Property have great real value and meaning.
Referring to Fig. 1 and Fig. 2.Fig. 1 shows the schematic diagram of installation site；Fig. 2 be existing one be vertical stop part solid
Structural schematic diagram.One on CRH5 type high-speed train bogie is that vertical stop part is made of high-carbon steel S355J2G, surface
Spray zinc-plated Fe/Zn.One, the outer image one I-shaped shape whole blocky in one that be vertical stop part, including it is stop section 91, solid
Determine portion 92 and interconnecting piece 93.Wherein, interconnecting piece 93 is connected to the middle position of stop section 91 and fixed part 92.The two of fixed part 92
End is each provided with a bolt hole, so that one is that the fixed part 92 of vertical stop part can be by connecting bolt fastening to axle box 10
On transition cover 12.One is that the stop section 91 of vertical stop part is suspended in the top of bogie 11, and between bogie 11 there are
Certain interval, vertical relative displacement of the gap between bogie and axle box, between the vertical deviation of bogie 11 is more than to be somebody's turn to do
When gap, then it will receive the blocking of stop section 91, to improve the stationarity and safety of train operation.
Existing one is that vertical stop part can effectively limit vertical opposite position between bogie and axle box in the design
It moves.However one is the intrinsic frequency (for example, master oscillator frequenc and Second Vibration Mode of Natural Frequencies) of vertical stop part or axle box at one
It is fixed horizontal, it is the inherent characteristic of its structure.The structure of axle box form and material of train determine that the intrinsic frequency of axle box is horizontal.
Traditional one is that the structural form of vertical stop part and material also determine that one is the intrinsic frequency level of vertical stop part.Tradition
One be vertical stop part eigentone it is just close with the vibration frequency of axle box on train bogie in operational process,
It is easy to happen covibration.The generation of resonance, making one is that the Oscillation Amplitude of vertical stop part is amplified rapidly, generates larger move and answers
Power, so that will lead to one is that vertical stop part is broken suddenly.If one is that vertical stop part generation transverse curvature is broken, in military service
The vertical relative displacement that is generated during plunging motion of bogie be no longer influenced by limitation.And vertical deviation limiter and axis
Case may also fall off, and cause train derailing even disturbing accident.(Line No.2 of Shenzhen Subway one is that safety jaw improves to Liu Zhiyuan et al.
Design, Shandong industrial technology 7 (2015): 40-40) it proposes to promote first natural frequency using the thickness for increasing connecting portion,
To optimize safety jaw structure with the caused breakage problem that solves to resonate.It but is vertical stop for one on CRH5 type bullet train
Block piece, in actual bogie structure, one is the size of vertical stop part by the card slot size on axle box transition cover
Limitation, the increase of thickness will lead to the component and can not be installed on bogie.
Above- mentioned information are only used for reinforcing the understanding to the background of the disclosure disclosed in background technology part, therefore it can be with
Including to the not known information of those of ordinary skill in the art.
Summary of the invention
To solve the above problem of the prior art, it is avoided that the purpose of the present invention is to provide one kind and resonates with axle box
Novel built-in high-damping the vertical stop part of High Speed Railway Trains bogie primary.
According to an aspect of the present invention, a kind of High Speed Railway Trains bogie primary of novel built-in high-damping is vertical only
Block piece is used for High Speed Railway Trains, and the direction of travel of the High Speed Railway Trains is longitudinal direction, and longitudinally perpendicular direction is with this
Laterally, at the same with this it is longitudinal and this laterally vertical direction be it is vertical, the High Speed Railway Trains include axle box and bogie, institute
State one be vertical stop part include can with the stop section of the bogie cooperating, the fixed part that can be connect with the axle box with
And the interconnecting piece of the connection stop section and the fixed part, described one is that vertical stop part is vertically arranged.Wherein described one
It is that vertical stop part is equipped with one or one or more notch being vertically arranged.
According to an embodiment of the present invention, in the longitudinal direction, the notch is through the stop section and described
Interconnecting piece.
According to an embodiment of the present invention, in the longitudinal direction, the notch runs through at least partly described fixation
Portion.
According to an embodiment of the present invention, on along vertical direction, the notch occupies the length of the fixed part
Relationship between H1 and the entire length H of the fixed part meets: 1/5H≤H1≤2/3H, preferably are as follows: 1/4H≤H1≤1/3H.
According to an embodiment of the present invention, in the transverse direction, it is vertical stop that the notch, which is set to described one,
The middle position is deviateed in the middle position of block piece.
According to an embodiment of the present invention, the notch is set to the stop section and the interconnecting piece, the notch
It is less than the stop section in the width of the longitudinal direction in the width along the longitudinal direction, is less than or equal to the connection
Width of the portion in the longitudinal direction.
According to an embodiment of the present invention, the notch extends downward at least part fixed part.
According to an embodiment of the present invention, padded coaming is filled in the notch, the padded coaming forms damping
Layer.
According to an embodiment of the present invention, the damping layer is glass glue-line, silicone structure sealant layer or spheroidal graphite
Cast iron layer.
According to another aspect of the present invention, a kind of High Speed Railway Trains bogie primary of novel built-in high-damping is vertical
Stop part, is used for High Speed Railway Trains, and the direction of travel of the High Speed Railway Trains is longitudinal, longitudinally perpendicular direction with this
For transverse direction, at the same with this it is longitudinal and this laterally vertical direction be it is vertical, the High Speed Railway Trains include axle box and bogie,
Described one be vertical stop part include can be with the stop section of the bogie cooperating, the fixed part that can be connect with the axle box
And the interconnecting piece of the connection stop section and the fixed part, described one is that vertical stop part is vertically arranged.One system
Vertical stop part includes two or more lamellas stacked along transverse direction, each described lamella includes retaining piece
Portion, fixinig plate portion and connection sheet portion, two or more retaining piece portions are collectively formed the stop section, and two or two
The fixed part is collectively formed in a above fixinig plate portion, and institute is collectively formed in two or more connection sheet portions
State interconnecting piece.
According to an embodiment of the present invention, damping layer is equipped between the adjacent lamella.
According to an embodiment of the present invention, the damping layer is made of padded coaming.
As shown from the above technical solution, advantages of the present invention and advantageous effects are: of the invention one is vertical stops
Block piece is formed due to being equipped with one or one or more notch being vertically arranged, or by multiple lamellar structures, to change
Structure and its intrinsic frequency.That is, the present invention one be vertical stop part natural frequency value and truck journal box it is intrinsic
Frequency value difference is larger, therefore can prevent from resonating with the axle box of train bogie.
Further, it is provided with damping layer in notch, vibrational energy can be absorbed, therefore can be reduced train normal operation
Vibrational energy in the process.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 show one be vertical stop part installation site schematic diagram；
Fig. 2 be existing one be vertical stop part schematic perspective view.
Fig. 3 is vertical the first embodiment party of stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention
The schematic perspective view of formula；
Fig. 4 be shown in Fig. 3 one be vertical stop part main view；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is vertical the second embodiment party of stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention
The schematic perspective view of formula；
Fig. 7 be shown in fig. 6 one be vertical stop part side view；
Fig. 8 is the vertical stop part third embodiment party of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention
The schematic perspective view of formula；
Fig. 9 be shown in Fig. 8 one be vertical stop part main view；
Figure 10 is the side view of Fig. 9；
Figure 11 is that the vertical stop part the 4th of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention is implemented
The schematic perspective view of mode；
Figure 12 is a main view for being vertical stop part shown in Figure 11；
Figure 13 is the side view of Figure 12；
Figure 14 is the existing one hammering experiment frequency response curve for being vertical stop part shown in Fig. 2；
Figure 15 is the existing one follow the bus test frequency response curve for being vertical stop part shown in Fig. 2；
Figure 16 be shown in Fig. 2 existing one be vertical stop part finite element analysis obtained by before two rank maximum mode；
Figure 17 is the of the invention one hammering experiment frequency response curve for being vertical stop part first embodiment shown in Fig. 3；
Figure 18 be the present invention one shown in Fig. 3 be vertical stop part first embodiment finite element analysis obtained by before two ranks
Maximum mode；
Figure 19 is the hammering experiment frequency response curve that the present invention one shown in Figure 11 is vertical the 4th embodiment of stop part；
Figure 20 is the follow the bus test frequency response curve that the present invention one shown in Figure 11 is vertical the 4th embodiment of stop part；
Figure 21 be the present invention one shown in Figure 11 be vertical the 4th embodiment of stop part finite element analysis obtained by before two ranks
Maximum mode.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Identical attached drawing in figure
Label indicates same or similar structure, thus the detailed description that will omit them.
In the present invention, related direction is defined as follows: the direction of travel of High Speed Railway Trains is longitudinal direction, longitudinally perpendicular with this
Direction is that laterally, this is transversely parallel to train axle direction, at the same with this it is longitudinal and this laterally vertical direction be it is vertical, this is vertical
To for acceleration of gravity direction.
Embodiment 1
It is the High Speed Railway Trains bogie of novel built-in high-damping of the present invention referring to Fig. 3, Fig. 4 and Fig. 5, Fig. 3
One is the schematic perspective view of vertical stop part first embodiment；Fig. 4 be shown in Fig. 3 one be vertical stop part main view
Figure；Fig. 5 is the side view of Fig. 4.As shown in Fig. 3, Fig. 4 and Fig. 5, the present invention one is vertical stop part first embodiment in shape
It is above that vertical stop part can be essentially identical with existing one, i.e., it is substantially in the shape of an " I ", in other embodiments, the present invention
One be that the shape of vertical stop part is not limited only to I-shaped.
As shown in Figure 3, Figure 4, it and combines with reference to Fig. 1.It includes block that the present invention one, which is vertical stop part first embodiment,
Portion 21, fixed part 22 and interconnecting piece 23.Wherein, interconnecting piece 23 is connected to the middle position of stop section 21 and fixed part 22.It is fixed
The both ends in portion 22 are each provided with a bolt hole, thus one be vertical stop part fixed part 22 can by connect bolt fastening arrive
On the transition cover 12 of axle box 10.One is that the stop section 21 of vertical stop part is suspended in the top of bogie 12, and with bogie 12
Between there are certain interval, vertical relative displacement of the gap between bogie and axle box, when the vertical deviation of bogie 12
When more than the gap, then it will receive the blocking of stop section 21, to improve the stationarity and safety of train operation.
Further, the present invention one is that vertical stop part first embodiment is equipped with a notch 20 being vertically arranged.
In other embodiments, the quantity of notch 20 is not limited to one, is also possible to two or more.The notch 20 can be with
It is made up of the method for removing material, such as saw, milling, etc..In the first embodiment, it is vertical that notch 20, which is set to one,
Stop part is in the middle position of transverse direction.
As shown in figs. 3 and 5, in a longitudinal direction, notch 20 runs through stop section 21 and interconnecting piece 23.Further, notch
20 extend downwardly and run through a part of fixed part 22.That is, upper part fixed part 22 is overall structure, and upper part is fixed
Portion 22 and stop section 21 and interconnecting piece 23 are separated into the identical two parts of structure by notch 20.It hangs down in this way, just changing a system
To the first natural frequency of stop part, to be conducive to that train travelling process is avoided to resonate with axle box.Further, on edge
On vertical direction, notch 20 occupies the satisfaction of the relationship between the length H1 of fixed part 22 and the entire length H of fixed part 22: 1/
5H≤H1≤2/3H, especially 1/4H≤H1≤1/3H, changing one both ideally in this way is the intrinsic of vertical stop part
Frequency, and taken into account its structural integrity.
Further, in some other embodiment, padded coaming can be filled in notch 20, padded coaming forms resistance
Buddhist nun's layer.Padded coaming, which can be glass cement, silicone structure sealant or spheroidal graphite cast-iron etc., can absorb the material of energy.Damping
Layer can absorb the vibration of train travelling process generation, thus be conducive to extend one be vertical stop part service life and the tired longevity
Life.
When filling padded coaming in the notch 20 in the present invention, i.e., when the present invention has damping layer, the size of notch 20
Can be relatively larger compared to not having damping layer, to be that vertical stop part has when having sufficient intensity in guarantee one
There is more preferably anti-resonance function.
Embodiment 2
It hangs down referring to the High Speed Railway Trains bogie primary that Fig. 6, Fig. 7, Fig. 6 are novel built-in high-dampings of the present invention
To the schematic perspective view of stop part second embodiment；Fig. 7 be shown in fig. 6 one be vertical stop part side view.Such as
Shown in Fig. 6, Fig. 7, the present invention one is the difference is that only for vertical stop part second embodiment and first embodiment:
It is to deviate intermediate position that notch 20, which is setting position on vertical stop part one,.Specifically, a system hangs down
Two parts, a portion are separated by notch 20 to the stop section of stop part 21 and interconnecting piece 23 and a part of fixed part 22
Thickness T3 be greater than another part thickness T4.This kind of structure can vary in one be vertical stop part the intrinsic frequency of single order
Rate is beneficial to prevent train travelling process and resonates with axle box.
This one be vertical stop part second embodiment other structures and first embodiment it is essentially identical, here no longer
It repeats.
Embodiment 3
It is the High Speed Railway Trains bogie of novel built-in high-damping of the present invention referring to Fig. 8, Fig. 9 and Figure 10, Fig. 8
One is the schematic perspective view of vertical stop part third embodiment；Fig. 9 be shown in Fig. 8 one be vertical stop part main view
Figure；Figure 10 is the side view of Fig. 9.As shown in Fig. 8, Fig. 9 and Figure 10, the present invention one is vertical stop part third embodiment and the
One embodiment the difference is that only:
It is inside vertical stop part that notch 20, which is set to one, and in a longitudinal direction, notch 20 does not extend through stop section 21, connects
Socket part 23 and fixed part 22.Specifically, notch 20 is less than stop section 21 in longitudinal direction in width W1 in a longitudinal direction
Width W2, less than interconnecting piece 23 longitudinal direction width W3, less than fixed part 22 longitudinal direction width W4.At other
In some embodiments, notch 20 can also be equal to interconnecting piece 23 in the width of longitudinal direction in width W1 in a longitudinal direction
W3。
The thickness of notch 20 in a lateral direction is less than stop section 21, interconnecting piece 23 and fixed part 22 in transverse direction
Thickness.
Height L1 of the notch 20 on vertical direction is the whole height L2 of vertical stop part less than one.In other embodiment party
Height L1 of the notch 20 on vertical direction can also be the whole height L2 of vertical stop part equal to one in formula.The third is implemented
It is inside vertical stop part since notch 20 is formed in one, while changing its intrinsic frequency, structural integrity is more in mode
It is good.
This one be vertical stop part third embodiment other structures and first embodiment it is essentially identical, here no longer
It repeats.
Embodiment 4
Turn referring to the High Speed Railway Trains that Figure 11, Figure 12 and Figure 13, Figure 11 are novel built-in high-dampings of the present invention
It is the schematic perspective view of vertical the 4th embodiment of stop part to frame one；It one is vertical stop part that Figure 12, which is shown in Figure 11,
Main view；Figure 13 is the side view of Figure 12.
It as shown in Figure 11, Figure 12 and Figure 13, and combines and refers to Fig. 1, this one is vertical the 4th embodiment of stop part, is used for
On High Speed Railway Trains.High Speed Railway Trains include axle box 10 and bogie 11.Lower end two sides are each provided with a bolt hole,
It can be that vertical stop part is installed on the transition cover 12 of axle box 10 by the present invention one by bolt.
As illustrated in figures 11 and 13, this one be vertical the 4th embodiment of stop part include along transverse direction stack two
A or more than two lamellas, to have, there are two be illustrated for lamella below.
As shown in Figure 11, Figure 13, two lamellas are respectively the first lamella 3 and the second lamella 4.First lamella 3 includes first
Retaining piece portion 31, the first fixinig plate portion 32 and the first connection sheet portion 33.Second lamella 4 is solid including the second retaining piece portion 41, second
Stator portion 42 and the second connection sheet portion 43.First retaining piece portion 31 and the second retaining piece portion 41 collectively form stop section；First is solid
Stator portion 32 and the second fixinig plate portion 42 collectively form fixed part；First connection sheet portion 33 and the second connection sheet portion 43 collectively form
Interconnecting piece.
In other embodiments, piece layer number is not limited to two panels, can according to need and increase accordingly.
One be made of multiple lamellas is that the first natural frequency of vertical stop part is different from integrally-built one being vertical
Stop part, therefore can prevent from resonating in train travelling process with axle box.
In other embodiments, damping layer 30 has been can be set between adjacent lamella, damping layer 30 for example can be by
The padded coamings such as glass cement, silicone structure sealant or spheroidal graphite cast-iron are made.It is vertical stop part that this aspect, which can change one,
First natural frequency, on the other hand can also absorb vibrational energy.
The test of the vertical stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention is described below
Test, including hammering test, follow the bus test and finite element analysis, and to be vertical stop part shape, material with the present invention one
Identical one kind existing one is vertical stop part as reference.
Hammer test method: in the lab, using the fixture of a c-type, by one be the lower end of vertical stop part i.e.
90% part of fixed part is clamped, and is fastened.By clip one be vertical stop part C-type clamp tool be fixed on stabilization and smooth
Experiment table top on, and fastening clips.Then, one be vertical stop part upper head i.e. stop section on dispose one
DYTRAN acceleration transducer includes that magnet and screw hole, the corresponding fastening in the bottom DYTRAN are arranged at DYTRAN acceleration transducer bottom
The bolt of connection.DYTRAN pedestal is fixed with super glue first be pasted on one be the stop section of vertical stop part following table
Then DYTRAN acceleration transducer is tightened on pedestal by face.Acceleration transducer (is transmitted signal and mentioned by cable
For electric energy) it is connected to progress data acquisition on Dewesoft data demodulation instrument.When one be that vertical stop part is fixed and acceleration
After sensor installs, it is the upper surface of vertical stop part using impact force hammer percussion one, removes impact force after tapping through
Hammer.It collects during tapping, the data in acceleration transducer be collected into 10 seconds.Use the spectrum analysis of Dewesoft software
Software analysis one is the intrinsic frequency of vertical stop part.
Follow the bus test method: being turning for third section trailer that vertical stop part is installed on a CRH5 type bullet train by one
To on the 7th axis of frame.This one is position that vertical stop part is fixed on axle box or more by matched bolt, and according to normal behaviour
Make to apply screw-down torque to bolt to fix one to be vertical stop part.It is the stop section position of the outer surface of vertical stop part one
Installation one can test the DYTRAN acceleration transducer of 3 directional accelerations.DYTRAN acceleration transducer passes through strength
Glue is that vertical plug surface is closely coupled with one, it can be ensured that DYTRAN acceleration transducer is persistently protected during the test
It keeps steady and normally collects the state of data admittedly.Acceleration transducer is connected to cable (transmitting signal and offer electric energy) cable run and wears
Train body lower part is crossed, and car is introduced by car door, is attached with the Dewesoft data demodulation instrument being mounted in compartment.
Dewesoft data demodulation instrument is opened, the sensor at the outer bogie of car body starts to work and acquires data, Dewesoft data
(FBG) demodulator carries out storage and preliminary analysis to data.When one be that the relevant devices such as vertical stop part and acceleration transducer install
Bi Yihou, during the bullet train is started, Dewesoft data demodulation instrument is persistently on vertical stop part to being mounted on one
Acceleration transducer carry out data acquisition.After being completed, the data processing of Dewesoft data demodulation instrument is used
Software handles the data collected, obtain one be the intrinsic frequency of vertical stop part information.
Finite element analysis: ANSYS finite element analysis software can be used and analyzed.
Referring to Figure 14, the vertical backstop of High Speed Railway Trains bogie primary with the novel built-in high-damping of the present invention is shown
Part shape, material identical existing one is that vertical stop part i.e. shown in Fig. 2 one is that vertical stop part hammering experiment frequency response is bent
Line.As shown in figure 14, existing one be vertical stop part single order fixed frequency between 500-600Hz, second order fixed frequency
About 1200Hz.
Referring to Figure 15, show shown in Fig. 2 existing one be vertical stop part follow the bus test frequency response curve.According to front
The follow the bus test method, the CRH5 type bullet train for being equipped with existing vertical stop part shown in Fig. 2 (are mounted on CRH5
3 vehicle of type train, 7 axis), 18 days 9 times round-trip starting have been carried out in the railway line that a length is more than 1700 kms has been surveyed
Examination.As shown in figure 15, this existing one be vertical stop part single order fixed frequency be greater than 500Hz.
Referring to Figure 16, show shown in Fig. 2 existing one be obtained by the finite element analysis of vertical stop part before two ranks it is maximum
Mode, wherein material is S335 type mild steel, density 7850kg/m3, Poisson's ratio 0.3, modulus of elasticity 206GPa, surrender
Intensity is 335MPa.As shown in figure 16, existing one is the single order fixed frequency of vertical stop part for 555.6Hz, and second order is intrinsic
Frequency is 1284Hz.
To sum up, with the vertical stop part shape of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention, material
Expect that identical existing one is the single order fixed frequency of vertical stop part for 555.6Hz, second order intrinsic frequency is 1284Hz.
Referring to Figure 17, the vertical stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention is shown
Frequency response curve is tested in the hammering of first embodiment；As shown in figure 17, of the invention one is vertical stop part first embodiment
Single order fixed frequency be 340Hz or so.
Referring to Figure 18, the vertical stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention is shown
Two rank maximum mode before obtained by the finite element analysis of first embodiment, wherein in order to effectively simulate damping layer, size of mesh opening is
0.5mm, shares Unit 2,410,000, and metal layer density is 7850kg/m3, elasticity modulus is 206GPa, Poisson's ratio 0.3；Damping layer
Density is 1420kg/m3, elasticity modulus is 3MPa, Poisson's ratio 0.45.Bian circle Tiao Jian ︰ is fixed on the bolt hole of bottom two.Such as
Shown in Figure 18, the present invention one is that the single order fixed frequency of vertical stop part first embodiment is about 345.42Hz, and second order is intrinsic
Frequency is about 1283.16Hz.
Referring to Figure 19, the vertical stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention is shown
Frequency response curve is tested in the hammering of 4th embodiment；As shown in figure 19, the present invention one is vertical the 4th embodiment of stop part
Single order fixed frequency is 280Hz, and second order intrinsic frequency is 1200Hz.
Referring to fig. 20, the follow the bus test frequency response curve that the present invention one is vertical the 4th embodiment of stop part is shown；Root
According to mentioned-above follow the bus test method, be equipped with shown in Figure 11 of the present invention one be vertical stop part CRH5 type bullet train
(being mounted on 3 vehicle of CRH5 type train, 7 axis) has carried out 15 hours 5 times on the railway line more than 60 kms and round-trip has started.Such as figure
Shown in 20, the present invention one is that the single order fixed frequency of vertical the 4th embodiment of stop part is about 210Hz, and second order intrinsic frequency is about
For 1100-1200Hz.
Referring to fig. 21, the vertical stop part of High Speed Railway Trains bogie primary of the novel built-in high-damping of the present invention is shown
Two rank maximum mode before obtained by the finite element analysis of 4th embodiment；As shown in figure 21, the present invention one is vertical stop part the
The single order fixed frequency of four embodiments is about 286.36Hz, and second order intrinsic frequency is about 1292.33Hz.
In embodiment of above may use relativity term, such as "above" or "below", to describe a member of icon
Relativeness of the part for another element.It is appreciated that, if making it turn upside down the device overturning of icon, is described
Element in "upper" will become the element in "lower".Term "one", " one ", " described " and "at least one" deposit to indicate
One or more elements/component part/etc..Term "comprising", " comprising " and " having " are included in indicate open
Other component part etc. also may be present in interior looking like and refer to other than the component part listed." first ", " second "
It is only used as label, is not the numerical limit to its object.
It should be appreciated that the disclosure is not limited in its application to detailed construction and the arrangement side of component proposed in this paper
Formula.The disclosure can have other embodiments, and can realize and execute in many ways.It Aforesaid deformation form and repairs
Reshaping formula is fallen within the scope of this disclosure.It should be appreciated that the disclosure disclosed and defined herein extend to it is in text and/or attached
It is mentioned in figure or all alternative combinations of two or more apparent independent features.All these different combinations are constituted
Multiple alternative aspects of the disclosure.Embodiment as described herein illustrates the best mode for becoming known for realizing the disclosure,
And those skilled in the art will be enable to utilize the disclosure.
Claims (13)
1. a kind of vertical stop part of High Speed Railway Trains bogie primary of novel built-in high-damping, is used for High Speed Railway Trains
On, the direction of travel of the High Speed Railway Trains be it is longitudinal, with the longitudinally perpendicular direction be laterally, while it is longitudinal and be somebody's turn to do with this
Laterally vertical direction is vertical, and the High Speed Railway Trains include axle box and bogie, and described one is vertical stop part packet
Include can with the stop section of the bogie cooperating, the fixed part that can be connect with the axle box and the connection stop section and
The interconnecting piece of the fixed part, described one is that vertical stop part is vertically arranged, which is characterized in that described one is vertical stops
Block piece is equipped with one or one or more notch being vertically arranged.
2. as described in claim 1 one is vertical stop part, which is characterized in that in the longitudinal direction, the notch passes through
Wear the stop section and the interconnecting piece.
3. as claimed in claim 2 one is vertical stop part, which is characterized in that in the longitudinal direction, the notch passes through
Wear at least partly described fixed part.
4. as claimed in claim 3 one is vertical stop part, which is characterized in that on along vertical direction, the notch is accounted for
Meet according to the relationship between the length H1 of the fixed part and the entire length H of the fixed part: 1/5H≤H1≤2/3H.
5. as claimed in claim 4 one is vertical stop part, which is characterized in that the notch occupies the length of the fixed part
Relationship between H1 and the entire length H of the fixed part meets: 1/4H≤H1≤1/3H.
6. as claimed in claim 2 one is vertical stop part, which is characterized in that in the transverse direction, the notch is set
Described one is placed in be the middle position of vertical stop part or deviate the middle position.
7. as described in claim 1 one is vertical stop part, which is characterized in that the notch is set to the stop section and institute
State interconnecting piece, the notch is less than the stop section in the width of the longitudinal direction in the width along the longitudinal direction,
Less than or equal to the interconnecting piece the longitudinal direction width.
8. as claimed in claim 7 one is vertical stop part, which is characterized in that the notch extends downward at least part
The fixed part.
9. if claim 1-8 described in any item one is vertical stop part, which is characterized in that filled with buffering in the notch
Material, the padded coaming form damping layer.
10. as claimed in claim 9 one is vertical stop part, which is characterized in that the damping layer is glass glue-line, silicone knot
Structure sealant layer or spheroidal graphite cast-iron layer.
11. a kind of vertical stop part of High Speed Railway Trains bogie primary of novel built-in high-damping, is used for High Speed Railway Trains
On, the direction of travel of the High Speed Railway Trains be it is longitudinal, with the longitudinally perpendicular direction be laterally, while it is longitudinal and be somebody's turn to do with this
Laterally vertical direction is vertical, and the High Speed Railway Trains include axle box and bogie, and described one is that vertical stop part includes
It can be with the stop section of the bogie cooperating, the fixed part that can be connect with the axle box and the connection stop section and institute
The interconnecting piece of fixed part is stated, described one is that vertical stop part is vertically arranged, which is characterized in that described one is vertical stop part packet
Include along transverse direction stack two or more lamellas, each described lamella include retaining piece portion, fixinig plate portion and
Connection sheet portion, the stop section is collectively formed in two or more retaining piece portions, two or more described
The fixed part is collectively formed in fixinig plate portion, and the interconnecting piece is collectively formed in two or more connection sheet portions.
12. as claimed in claim 11 one is vertical stop part, which is characterized in that be equipped with damping between the adjacent lamella
Layer.
13. as claimed in claim 12 one is vertical stop part, which is characterized in that the damping layer is made of padded coaming.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710565755 | 2017-07-12 | ||
| CN201710565755X | 2017-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109249954A true CN109249954A (en) | 2019-01-22 |
Family
ID=65051324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710778502.0A Pending CN109249954A (en) | 2017-07-12 | 2017-09-01 | The vertical stop part of High Speed Railway Trains bogie primary of novel built-in high-damping |
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| CN (1) | CN109249954A (en) |
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Application publication date: 20190122 |