CN107539331A - Attachment means between car body and bogie - Google Patents
Attachment means between car body and bogie Download PDFInfo
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- CN107539331A CN107539331A CN201710763785.1A CN201710763785A CN107539331A CN 107539331 A CN107539331 A CN 107539331A CN 201710763785 A CN201710763785 A CN 201710763785A CN 107539331 A CN107539331 A CN 107539331A
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- bogie
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- centrepin
- attachment means
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- 238000010586 diagram Methods 0.000 description 6
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- 230000007547 defect Effects 0.000 description 1
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- NACPYYYBTUKNNL-YSKMNHBWSA-N interiorin Chemical group C=1([C@@]2(C(OC)=C(C(C=1)=O)OC)CO1)C[C@@H](C)[C@@H](C)[C@@H](OC(=O)C(\C)=C/C)C3=C2C1=C(OCO1)C1=C3 NACPYYYBTUKNNL-YSKMNHBWSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
Attachment means between car body and bogie that the invention provides, include centrepin traction unit, bogie frame unit, rubber spring, for the centrepin traction unit in the middle part of the bogie frame unit, some rubber springs are symmetrically fixedly arranged on the bogie frame unit both ends.The beneficial effect of the invention is：For subway with hydraulic power shunter power is small, axle weight is small, speed is low the characteristics of, the design being engaged using centrepin traction and rubber spring, improve the reliability and maintainability of locomotive, reduce manufacturing cost and maintenance cost simultaneously, rubber spring need not safeguard that centrepin only need to periodically add lubricating oil；This kind of structure not only meets the performance and reliability requirement of locomotive, can also can adapt to the running environment of domestic all subway lines at present by the circuit of small curve radius.
Description
Technical field
The invention belongs to subway hydraulic power shunting diesel locomotive bogie field, more particularly, to car body with turning
To the attachment means between frame.
Background technology
The attachment means of car body and bogie, main function are：1. ensure weight, longitudinal force and the cross force of locomotive just
Often transmit；2. evenly distributing for axle weight is stable on bogie with car body；3. relative to car when allowing bogie disengaging curve
Body is turned round.Therefore, it is both bogey, is turning joint again, the performance quality of attachment means, directly affects locomotive
Dynamic performance, have an effect on locomotive sticks together weight utilization rate (axle weight transfer i.e. under tractive force effect).At present, domestic subway
Cartridge (or centrepin) and rigid side bearing are generally used with hydraulic power shunting diesel locomotive, it is frictional to draw lever apparatus peace face
Two kinds of types of attachment of side bearing.But for both devices due to complicated, dynamic performance is poor；In addition, car body and bogie
Between use both attachment means locomotive, 100m is reached by the sweep of subway line, it is impossible to adapt to small curve
The running environment of radius circuit and complicated subway line.Therefore, a kind of ad hoc novel subway shunter car body of meter is with turning to
Attachment means between frame.
The content of the invention
The invention will solve the problems, such as the attachment means being to provide between car body and bogie, transmit longitudinal force
At the same time it can also reduce drawbar height, Axle Weight Transfer of Locomotive by Using is reduced.
In order to solve the above technical problems, the technical scheme that the invention uses is：
Attachment means between car body and bogie, include centrepin traction unit, bogie frame unit, rubber bullet
Spring, for the centrepin traction unit in the middle part of the bogie frame unit, some rubber springs are symmetrically fixedly arranged on institute
State bogie frame unit both ends.
Further, the bogie frame unit mainly includes crossbeam, curb girder, end carriage, and two curb girders are fixedly arranged on
The crossbeam both ends, the relatively described crossbeam of two end carriages are symmetrically fixedly arranged between two curb girders.
Further, the rubber spring includes the shank being sequentially connected with, top plate, rubber, dividing plate, bottom plate, some described
Rubber spring is symmetrically fixedly arranged on the curb girder, and the shank is plugged in vehicle body bottom frame side bearing beam bottom, and the bottom plate is fixedly arranged on
On the curb girder.
Further, the rubber spring vertical stiffness is (5~8) × (1 ± 15%) kN/mm, meets car body with turning to
The application of frame vertical load；The rubber spring lateral stiffness is (130~180) × (1 ± 20%) N/mm, longitudinal rigidity is
(250~300) × (1 ± 20%) N/mm, meet car body with bogie by being rotated more than 50m radius curves track when apply
Turning moment and displacement deformation.Wherein, it is preferred that the rubber spring vertical stiffness is 6.5 × (1 ± 15%) kN/mm, institute
State rubber spring lateral stiffness be 160 × (1 ± 20%) N/mm, longitudinal rigidity be 275 × (1 ± 20%) N/mm.
Further, the centrepin traction unit includes centrepin, center key seat, copper sheathing, rubber sleeve assembly, in described
Heart pin upper surface is fixedly connected with vehicle body bottom frame draw beam bottom plate lower plane, and the center key seat is fixedly connected with the crossbeam,
The centrepin is set with copper sheathing and rubber sleeve assembly, the rubber sleeve successively from inside to outside inside the center key seat
It is interference fit between assembly and the center key seat, the magnitude of interference is (4.33~7.35) mm.
Further, the copper sheathing inwall and the centrepin outer wall are interference fit.
Further, the copper sheathing inwall and the magnitude of interference of centrepin outer wall interference fit are (0.002~0.045)
mm。
Further, the rubber sleeve assembly includes rubber sleeve, inner sleeve, and the rubber sleeve is loaded on the outside of inner cover.
Further, the radial rigidity of the rubber sleeve assembly is (15~30) kN/mm, limits car body with bogie preceding
Relative displacement under maximum drawbar pull state and side-sway maximum centrifugal displacement afterwards.Preferably, the radial direction of the rubber sleeve assembly is firm
Spend for 20kN/mm.
Further, the inner sleeve inwall coordinates with the copper sheathing outer wall for gap, and gap value is (1.34~1.93) mm.
The invention has the advantages and positive effects of：
(1) attachment means for subway with hydraulic power shunter power is small, axle weight is small, speed is low the characteristics of, lead to
The attachment means design that centrepin traction is engaged with rubber spring is crossed, bogie can rotate relative to car body, in addition, this kind is tied
Structure can also reduce drawbar height while longitudinal force is transmitted, and reduce Axle Weight Transfer of Locomotive by Using；
(2) attachment means are simple in construction, and rubber spring need not be safeguarded, centrepin only need to periodically add lubricating oil, carry
The high reliability and maintainability of locomotive, while reduce manufacturing cost and maintenance cost；
(3) attachment means not only meet the performance and reliability requirement of locomotive, are also applicable the ground of small curve radius
Iron line environment, it can adapt to the running environment of domestic all subway lines at present；
(4) rubber spring of the attachment means can improve the vertical stiffness of locomotive, and after locomotive crosses curve, rubber bullet
Friction torque caused by spring can provide the anti-hunting of locomotive, improve the dynamic performance of locomotive.
Brief description of the drawings
Fig. 1 is the centrepin traction unit schematic diagram of the attachment means in embodiment 1；
Fig. 2 is Fig. 1 close-up schematic view；
Fig. 3 is the rubber sleeve assembly diagram of embodiment 1；
Fig. 4 is the top view of the rubber spring of the attachment means and bogie frame unit in embodiment 1；
Fig. 5 is the front view of the rubber spring of the attachment means and bogie frame unit in embodiment 1；
Fig. 6 is Fig. 4 close-up schematic view；
Fig. 7 is the front view of the rubber spring of the attachment means in embodiment 1；
Fig. 8 is the top view of the rubber spring of the attachment means in embodiment 1；
Fig. 9 is subway shunter relative dimensions in embodiment 2；
Figure 10 is the schematic diagram of rail and wheel rim of locomotive in embodiment 2；
Figure 11 is the car body side-play amount schematic diagram in embodiment 2 (two bogies are in maximum outward position)；
Figure 12 is the car body side-play amount schematic diagram in embodiment 2 (two bogies are in maximum deflection position)；
Figure 13 is position view of the rubber spring on bogie in embodiment 3.
In figure：1st, centrepin traction unit, 101, centrepin, 102, center key seat, 103, copper sheathing, 104, rubber sleeve,
105th, inner sleeve, 2, bogie frame unit, 201, crossbeam, 202, curb girder, 203, end carriage, 3, rubber spring, 301, shank, 302,
Top plate, 303, rubber, 304, dividing plate, 305, bottom plate, 4, reinforcement flange, 5, big nut, 6, sealing gasket, the 7, first packing ring, 8, pad,
9th, the first bolt, the 10, second bolt, 11, adjust pad, 12, second packing ring.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment 1
As shown in figures 1-8, for subway hydraulic power shunting diesel locomotive, two bogies, Mei Yizhuan are typically provided with
To frame using the attachment means between the car body and bogie described in the invention, include centrepin traction unit 1, turn
To framework frame unit 2, rubber spring 3, the centrepin traction unit 1 is located at the middle part of bogie frame unit 2, Ruo Gansuo
State rubber spring 3 and be symmetrically fixedly arranged on the both ends of bogie frame unit 2.
As shown in figure 4, the bogie frame unit 2 mainly includes crossbeam 201, curb girder 202, end carriage 203, two institutes
State curb girder 202 and be fixedly arranged on the both ends of crossbeam 201, the relatively described crossbeam 201 of two end carriages 203 is symmetrically fixedly arranged on two institutes
State between curb girder 202；
As shown in figs. 4-7, some rubber springs 3 are symmetrically fixedly arranged on two curb girders 202；The rubber spring
3 include the shank 301 being sequentially connected with, top plate 302, rubber 303, dividing plate 304, bottom plate 305, and the shank 301 is plugged in car
Body chassis side bearing beam bottom, the bottom plate 305 are fixedly arranged on the curb girder 202 by the second bolt 10；The spiral shell as shown in Figure 6
The bottom plate 305 is fastened on described by bolt enlarged diagram, second bolt 10 by adjust pad 11 and second packing ring 12
On curb girder 202；Wherein, the vertical stiffness of rubber spring 3 is 6.5 × (1 ± 15%) kN/mm, meets car body and bogie
The application of vertical load；The lateral stiffness of rubber spring 3 is 160 × (1 ± 20%) N/mm, longitudinal rigidity be 275 × (1 ±
20%) N/mm, the turning moment applied when car body is rotated with bogie by 60m curves and displacement deformation are met.
As shown in figure 1, the centrepin traction unit 1 includes centrepin 101, center key seat 102, copper sheathing 103, rubber
Assembly is covered, the material of centrepin 101 is Q235B, the upper surface of centrepin 101 and vehicle body bottom frame draw beam bottom plate lower plane
It is fixedly connected, the center key seat 102 is fixedly connected with the crossbeam 201, and the centrepin 101 passes sequentially through the He of copper sheathing 103
For rubber sleeve assembly inside the center key seat 102, the inwall of copper sheathing 103 and the outer surface of centrepin 101 are interference
Coordinate；
The rubber sleeve assembly includes rubber sleeve 104, inner sleeve 105, the inwall of inner sleeve 105 and the outer wall of copper sheathing 103
Coordinate for gap, the rubber sleeve 14 is interference fit with the inwall of center key seat 102.The radial direction of the rubber sleeve assembly is firm
Spend for 20kN/mm, limit car body with relative displacement 5.44mm and side-sway of the bogie under front and rear maximum drawbar pull state most
Big centrifugation displacement 1.56mm.
Wherein, displacement of the centrepin to main car frame center line cannot be greater than 1.5mm, and centrepin is in main car frame two
The perpendicularity of beam lower plane cannot be greater than 1.0mm in length range.
In the above-mentioned technical proposal of the present embodiment, the engine truck transmits bogie using center pin draw-gear
Longitudinal force (tractive force and brake force) between car body.Due to being furnished with copper sheathing between the centrepin 101 and center key seat 102
103 and rubber sleeve assembly, the assembling of the inwall of copper sheathing 103 and centrepin 101 is interference fit, and the magnitude of interference is (0.002~0.045)
Mm, the inner sleeve inwall of outer wall and rubber sleeve assembly are gap cooperation, and gap value is (1.34~1.93) mm, the rubber sleeve 104
It is interference fit with the inwall of center key seat 102, the magnitude of interference is (4.33~7.35) mm.Under coordinating herein, longitudinal direction is being transmitted
While power, the structure allows bogie to have appropriate traversing and rotation relative to car body, improves the kinetics of bogie
Energy.
When falling car, ZG-3 calcium-base grease is smeared in the periphery of copper sheathing 103 and rubber sleeve assembly inner headed face, to reduce mill
Damage, and extend the service life of copper sheathing 103 and rubber element.
In the present embodiment, based on more than coordinate bogie relative to car body can traversing and rotation, at the same time adopt
The vertical load between bogie and car body is transmitted with two point elasticity rubber spring support meanss.According to Locomotive Axle Load, per axle
Deadweight and rubber spring 3 arrange quantity under spring, calculate its correlation performance parameters.It is computed the laterally maximum of this rubber spring 3
Displacement and longitudinal maximum displacement, the maximum transversal displacement not less than permission and the maximum length travel of permission, can meet machine
Car is with requiring, hereby it is ensured that when locomotive crosses the circuit of sharp radius curve, the not unstability of rubber spring 3.
Because the speed of service of locomotive is relatively low, rubber spring 3 can not only improve the vertical stiffness of locomotive, and in machine
After car crosses curve, friction torque caused by rubber spring 3 can improve the anti-serpentine locomotion of locomotive, improve the kinetics of locomotive
Energy.
It is below the improvement to the above-mentioned technical solutions of this embodiment：
Further, on the centrepin 101 surfaces and vehicle body bottom frame draw beam bottom plate lower plane fixed connection place be provided with plus
Gu flange 4.
The centrepin 101 is fixedly connected by welding with vehicle body bottom frame draw beam lower plane, if manual welding
422 welding rods should be used, the defects of bubble, slag inclusion, crackle must not occur in weld seam.In addition, locomotive is run on straight road and curve
When, to prevent the weld fatigue between centrepin 101 and vehicle body bottom frame from failing, ensure the annexation of car body and bogie
It is firm, it is necessary to strengthen the connection of centrepin 101 and vehicle body bottom frame, therefore design dish type reinforcement flange 4, and pass through 4 M10 × 25
Bolt is fastened on vehicle body bottom frame, plays safety protection function to centrepin, as shown in Figure 1.
Further, the centrepin bottom is installed with big nut 5.
In Fig. 1, if the big nut 5 is fixedly connected on the bottom of centrepin 101 by bolt stem, the two should smoothly be filled
Match somebody with somebody, there must not be stuck phenomenon.The big nut 5 leaves certain interval with the lower plane of crossbeam 201, mustn't excessively fasten, and rises
To the position-limiting action in the installation process of centrepin 101.After car adjustment is fallen, it should with the lower plane gap size of crossbeam 201
In (8~15) mm scopes, if not in this scope, it is allowed to adjusted with the method for increase and decrease pad.
Further, the upper surface of center key seat 102 is installed with sealing gasket 6.
As shown in figure 1, because the center key seat 102 is fixed on the crossbeam 201, in the centrepin 101
After inserting center key seat 102 by copper sheathing 103 and rubber sleeve assembly, due to the centrepin 101 and the center key seat 102
Radius is simultaneously mutually different, can leave larger space on the top of center key seat 102, in use, this space is easy to make
Into the aggregation of dust and other impurities, if the gap that debris enters between copper sheathing 103, rubber sleeve assembly, centrepin 101, can break
The cooperation of the bad centrepin 101 and the center key seat 102, pollutes lubricating grease, influences the normal use and machine of the connection
Vehicle dynamics performance.Therefore, sealing gasket 6 is installed with by the first bolt 9 on the center key seat 102, played dust-proof, anti-miscellaneous
The effect that thing enters.The sealing gasket 6 is fixedly attached to the top of center key seat 102, such as Fig. 2 by first bolt 9
Shown, the sealing gasket 6 is fixedly pressed against on center key seat 102 by the bolt by the first packing ring 7 with pad 8.
By actual verification, it was demonstrated that the company being engaged between car body and bogie using centrepin traction with rubber spring
Connection device can effectively improve locomotive dynamics performance；During by the circuits of small curve radius, the not unstability of rubber spring 3.Phase
For attachment means of the existing domestic subway between the car body and bogie of hydraulic power shunter, this attachment means has
Prominent substantial effect.
Embodiment 2
In the present embodiment, the attachment means that centrepin traction is engaged with rubber spring are applied and shunt in subway with internal combustion
In locomotive driving, wherein, a rubber spring 3 is respectively provided with the curb girder 202 of each bogie, the support of two systems is formed, passes through
Certain derivation of equation go out locomotive by radius be 60m small curve radius track when bogie hard-over, calculating process
It is as follows：
Pass through TB1350-83《The railway curve slacking of gauge》And GB/T50157-2003《Metro design code》To bogie
Carry out correlation computations.
1st, subway is with shunting diesel locomotive relative dimensions (as shown in Figure 9)：
LK--- bogie pivot center, take 7200mm；
L --- wheel-base bogie, take 2300mm；
L --- length over ends of body, take 14800mm；
R --- the transverse pitch of two rubber springs on curb girder, take 1956mm.
2nd, Widening on Curve
To ensure that locomotive passes through on straight line, certain gap, such as Figure 10 should be possessed between gauge and wheel rim outside
It is shown：
σ=A- (B+2t)=18mm
According to existing《Regulations of railway technical operation》：
A --- gauge=1435mm on straight line；
Away from=(1353 ± 2) mm on the inside of the wheel rim of B --- train wheel；
T --- flange thickness=33mm at from wheel rim summit 18mm；
σ --- the full gap (mm) on straight line on the inside of rail and on the outside of wheel rim.
σ nominal size is 18mm, and on curve, σ can help locomotive by curve, for the geometrical curve for locomotive of being more convenient for
By, also by interior rail it is appropriate in move, shifting amount Δ is Widening on Curve degree in interior rail.It is existing according to China《Railway technology management is advised
Journey》, the relation of degree of widening and radius, as R ＜ 300m, Δ=15mm, σ+Δ=33mm.
3rd, lateral play of wheel set
In addition to the gap of wheel rim and rail, to enable three longer axles of wheelbase and four-shaft steering to include curve, return
Wheel to transverse momentum, that is, allow wheel to relative to axle box and axle box relative to the appropriate traversing of bogie frame.Foundation《Locomotive is overall
Structure and design》Do not consider for two axle truck lateral play of wheel set.
4th, calculating of the locomotive by radius for 60m curved roads
For ease of being drawn in the geometrical relationship of research steering frame and curve, it is specified that by the outside of the wheel rim of left and right two away from B+2t
Zero is condensed to, using radius as ROutside=R+0.5 σ arc representation outer rail medial surface, with RIt is interiorIn the arc representation of=R-0.5 σ-Δ outside rail
Side, that is, represented with the full gap σ+Δ of wheel rim and rail on curve between outer rail medial surface and interior rail lateral surface
Away from.
4.1st, bogie turns the position of the heart
If bogie, in maximum deflection position, first axle reclines outer rail, the second axle reclines interior rail, ask first axle turn the heart away from：
Y2=(σ+Δ)
In formula：
R：Sweep 60m；Y1：Bogie axle is relative to axle box transverse momentum (for two axle truck lateral play of wheel set
It is small not consider) 0mm；l：Bogie axle centre-to-centre spacing 2300mm；Y2：The total backlash of rail and wheel rim σ+Δ=33mm.
4.2nd, corner of the bogie to car body
Currently, trailing bogie is in maximum outward position.Now two bogies are equal to the rotational angle theta of car body, such as Figure 11
It is shown.
In formula：
R：Sweep 60m；LK：Centre-to-centre spacing 7200mm between the bogie of locomotive two；
Currently, trailing bogie is in maximum deflection position, now, X1(first axle turn the heart away from)=X3(turn of the 3rd axle
The heart away from)=2.01m, forward and backward bogie is to the corner of car body, as shown in figure 12：
In formula：
S1、S2：Forward and backward bogie turns heart position, and offset identical Y of the first axle with the 3rd axle to outer rail1=Y3=
0m,
Therefore：R：Sweep 60m；l：Bogie axle centre-to-centre spacing 2300mm；
X1=X3=2.01m
5th, conclusion
When locomotive passes through radius 60m curves, when bogie is in maximum deflection position, trailing bogie is to car body
Corner is maximum, therefore hard-over selects θmax=4.26 °.
Embodiment 3
In the present embodiment, according to the bogie hard-over obtained in known conditions and embodiment 2, by calculating, really
Can the fixed two systems support being made up of rubber spring 3 meet locomotive operation requirement.
1st, known parameters
| Shaft type | B-B |
| Axle weight | 14t |
| Bogie weight | 8.284t |
| Per axle deadweight | 2.87t |
2nd, rubber spring stand under load calculates
A rubber spring is respectively provided with the curb girder of each bogie, a locomotive there are two bogies, then rubber bullet
Spring number is 4, and each rubber spring institute is loaded：
PRubber=(14 × 4-8.284 × 2)/4 × 1000 × 9.81=96.7kN
3rd, the selection of rubber spring parameter
Rubber spring parameter selected in this example is as shown in table 1：
The rubber spring parameter of table 1
| It is vertical to preload (KN) | Shear direction | Deflection (mm) | Rigidity (N/mm) |
| 100 | Short side | - 55~+55 | 160 × (1 ± 20%) |
| 100 | Long side | - 55~+55 | 275 × (1 ± 20%) |
| 100 | 45° | 135 | Do not damage |
Vertical stiffness：6.5 × (1 ± 15%) kN/mm
Wherein, every layer of rubber appearance and size：Length × width × height=l × w × h=420mm × 240mm × 57.5mm, rubber
Spring number of plies n=4 layers, both ends end plate thickness are 10mm, and central dividing plate thickness is 10mm, the free a height of H of rubber spring0=
252.5mm。
4th, calculating process
The natural bow of each rubber spring：F=P/KZ=96.7/6.5=14.9mm
Working depth：H=H0- f=252.5-14.9=237.6mm
Calculated and understood according to the curve negotiating of locomotive, when locomotive is by sweep R=60m, bogie is with respect to car body
The anglec of rotation be 4.26 °, as shown in Figure 13 the maximum radius of turn r of rubber spring be：
R=OB=OA=1956/2=978mm
After bogie rotates 4.26 °,
∠ AOB=4.26 °
4.26 °=71.6mm of ∴ BC=rsin ∠ AOB=978sin
4.26 °=975.4mm of OC=rcos ∠ AOB=978cos
Rubber spring lateral displacement (y-axis direction in fig. 11) Δ y=OA-OC=978-975.4=2.6mm
Rubber spring length travel (x-axis direction in fig. 11) Δ x=BC=71.6mm
Bogie moves (8~10) mm relative to cross-car
The horizontal maximum displacement y=2.6+10+1.56=14.16mm of rubber spring
Longitudinal maximum displacement x=71.6+5.44=77.04mm of rubber spring
6th, conclusion
According to above-mentioned result of calculation, the rubber spring meets requirement, natural bow f=14.9mm, turns in maximum
Rubber spring maximum deformation quantity is not damaged less than 135mm during Angle Position, while plays buffering and damping action.
Pass through above theoretical calculation, it was demonstrated that be engaged between car body and bogie using centrepin traction with rubber spring
Attachment means design, when locomotive crosses 60m small curve radius circuits, the horizontal maximum displacement of rubber spring 3 and longitudinal direction
Maximum transversal displacement and maximum length travel of the maximum displacement not less than its permission, hereby it is ensured that the not unstability of rubber spring 3,
And meet locomotive operation requirement.
The embodiment of the invention is described in detail above, but the content is only the preferable of the invention
Embodiment, it is impossible to be considered as the practical range for limiting the invention.It is all made according to the invention application range it is equal
Deng change and improvement etc., all should still belong within the patent covering scope of the invention.
Claims (10)
1. the attachment means between car body and bogie, it is characterised in that include centrepin traction unit, bogie frame list
Member, rubber spring, for the centrepin traction unit in the middle part of the bogie frame unit, some rubber springs are symmetrical
It is fixedly arranged on the bogie frame unit both ends.
2. the attachment means between car body as claimed in claim 1 and bogie, it is characterised in that the bogie frame list
Member mainly includes crossbeam, curb girder, end carriage, and two curb girders are fixedly arranged on the crossbeam both ends, and two end carriages are with respect to institute
Crossbeam is stated symmetrically to be fixedly arranged between two curb girders.
3. the attachment means between car body as claimed in claim 2 and bogie, it is characterised in that the rubber spring includes
There are the shank being sequentially connected with, top plate, rubber, dividing plate, bottom plate, some rubber springs are symmetrically fixedly arranged on the curb girder, institute
State shank and be plugged in vehicle body bottom frame side bearing beam bottom, the bottom plate is fixedly arranged on the curb girder.
4. the attachment means between car body as claimed in claim 1 and bogie, it is characterised in that the rubber spring is vertical
Rigidity is (5~8) × (1 ± 15%) kN/mm, meets the application of car body and bogie vertical load；The rubber spring is horizontal
To rigidity be (130~180) × (1 ± 20%) N/mm, longitudinal rigidity be (250~300) × (1 ± 20%) N/mm, meet
The turning moment and displacement deformation applied when car body and bogie more than 50m radius curves track by rotating.
5. the attachment means between car body as claimed in claim 1 and bogie, it is characterised in that the centrepin traction is single
Member includes centrepin, center key seat, copper sheathing, rubber sleeve assembly, the centrepin upper surface and vehicle body bottom frame draw beam bottom plate
Lower plane is fixedly connected, and the center key seat is fixedly connected with the crossbeam, and the centrepin is located inside the center key seat,
And it is set with copper sheathing and rubber sleeve assembly successively from inside to outside, match somebody with somebody between the rubber sleeve assembly and the center key seat for interference
Close, the magnitude of interference is (4.33~7.35) mm.
6. the attachment means between car body as claimed in claim 5 and bogie, it is characterised in that the copper sheathing inwall and institute
Centrepin outer wall is stated as interference fit.
7. the attachment means between car body as claimed in claim 5 and bogie, it is characterised in that the copper sheathing inwall and institute
The magnitude of interference for stating centrepin outer wall interference fit is (0.002~0.045) mm.
8. the attachment means between car body as claimed in claim 5 and bogie, it is characterised in that the rubber sleeve assembly bag
Rubber sleeve, inner sleeve are included, the rubber sleeve is loaded on the outside of inner cover.
9. the attachment means between car body as claimed in claim 5 and bogie, it is characterised in that the rubber sleeve assembly
Radial rigidity is (15~30) kN/mm, limit the relative displacement under front and rear maximum drawbar pull state of car body and bogie and
Side-sway maximum centrifugal displacement.
10. the attachment means between car body as claimed in claim 8 and bogie, it is characterised in that the inner sleeve inwall with
The copper sheathing outer wall coordinates for gap, and gap value is (1.34~1.93) mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763785.1A CN107539331A (en) | 2017-08-30 | 2017-08-30 | Attachment means between car body and bogie |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763785.1A CN107539331A (en) | 2017-08-30 | 2017-08-30 | Attachment means between car body and bogie |
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| CN107539331A true CN107539331A (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710763785.1A Pending CN107539331A (en) | 2017-08-30 | 2017-08-30 | Attachment means between car body and bogie |
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Cited By (1)
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|---|---|---|---|---|
| CN108705907A (en) * | 2018-07-10 | 2018-10-26 | 徐工集团工程机械有限公司 | A kind of dual-purpose power truck of rail |
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| CN108705907A (en) * | 2018-07-10 | 2018-10-26 | 徐工集团工程机械有限公司 | A kind of dual-purpose power truck of rail |
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