CN112298245A - Independent wheel pair bogie based on low-rigidity axle box suspension and double-primary longitudinal pull rod - Google Patents
Independent wheel pair bogie based on low-rigidity axle box suspension and double-primary longitudinal pull rod Download PDFInfo
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- CN112298245A CN112298245A CN202011181097.2A CN202011181097A CN112298245A CN 112298245 A CN112298245 A CN 112298245A CN 202011181097 A CN202011181097 A CN 202011181097A CN 112298245 A CN112298245 A CN 112298245A
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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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/32—Guides, e.g. plates, for axle-boxes
Abstract
The invention relates to an independent wheel set bogie based on low-rigidity axle box suspension and double primary longitudinal pull rods, which is suitable for low-floor tramcar vehicles controlled by traction and active guidance. Compared with the prior art, the wheel set has the advantages of providing smaller longitudinal and transverse positioning rigidity, guaranteeing the effectiveness of radial passing of curves of the independent wheel sets, effectively reducing abrasion between wheel tracks and wheel flange guiding and the like.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to an independent wheel pair bogie which is suspended based on a low-rigidity axle box and driven by a hub motor, and is connected with a framework through a double-system longitudinal pull rod.
Background
With the progress of mechatronics and the updating of motors, in-wheel motors are increasingly applied to rail transit vehicles. The independent wheel bogie which is directly controlled by the hub motor and has four wheels which are respectively and independently driven enables the bogie to fully exert the advantage that an independent rotating wheel axle bridge can be made into a U-shaped structure, and the purpose of reducing the height of a vehicle floor is achieved; meanwhile, the rotation torque of the four independent wheels is controlled by using the hub motor and a train active steering algorithm, the problem that the independent wheel pair loses steering capability due to the decoupling of the left wheel and the right wheel can be effectively solved, the abrasion of a wheel rail can be effectively reduced on a curve, and the wheel rim of the independent wheel pair on the curve is prevented from being steered.
The ability of the independent wheel truck to steer by controlling the hub motor torque/speed (DIRW) has been demonstrated from theoretical and simulation studies. However, due to factors such as output torque limitation of the driving motor for active steering, saturation of adhesion force between wheel rails and the like, the independent wheel bogie driven by the hub motor in a composite form of traction and active steering needs to have smaller axle box suspension longitudinal positioning rigidity; and the stability when keeping wheel traction and braking needs higher axle box suspension positioning rigidity, and this problem leads to the difficult engineering application of independent wheel bogie of initiative direction, awaits a urgent need to solve.
Disclosure of Invention
The invention aims to overcome the defect of contradiction between the requirements of traction and active guide on the positioning rigidity of the bogie axle box suspension in the prior art, and provides an independent wheel pair bogie which decouples the traction and guide of wheel pairs and adopts low-rigidity axle box suspension and double-series longitudinal pull rods.
The purpose of the invention can be realized by the following technical scheme:
the independent wheel pair bogie based on low-rigidity axle box suspension and double-series longitudinal pull rods is suitable for low-floor tramcar vehicles adopting traction and active guide control and comprises an independent wheel pair assembly, an in-wheel motor assembly, a U-shaped framework, an axle box suspension assembly and a series of longitudinal pull rods, wherein the in-wheel motor assembly drives and controls the independent wheel pair assembly, the axle box suspension assembly is connected with the end part of the independent wheel pair assembly and the end part of the U-shaped framework and provides vertical and smaller longitudinal and transverse rigidity, the series of longitudinal pull rods are connected with the middle part of the independent wheel pair assembly and the middle part of the U-shaped framework, longitudinal traction force and braking force between the independent wheel pair assembly and the U-shaped framework are effectively transmitted, and relative rotation of the independent wheel pair assembly and the U-shaped framework is not influenced.
Independent wheel pair assembly is including two independent rotating wheel that are located the left and right outside, independent rotating wheel carries out swivelling joint through the axle bridge, the axle bridge tip is equipped with the axle box that is used for independent rotating wheel, the tip of axle box is equipped with the axle bridge platform about the axle bridge symmetry, the both ends of axle bridge platform are equipped with axle box suspension wheel offside mount pad, the middle part welding of axle bridge has one and is a vertical pull rod wheel pair side mount pad, and one is vertical pull rod wheel pair side mount pad in the outside of axle bridge.
The axle bridge and the axle bridge platform which is symmetrical along the axle bridge direction form an H-shaped structure at the end part.
Furthermore, the wheel hub motor assembly is coaxially connected with the independent rotating wheel and is arranged on the outer side of the independent wheel pair assembly, and the wheel rail motor assembly provides driving and control torque for the independent rotating wheel.
Furthermore, the U-shaped framework comprises side beams, cross beams and traction end beams, wherein the number of the side beams is 2, the side beams are respectively fixed on two sides of the cross beams, and the number of the traction end beams is 1, and the traction end beams are fixed on the same end of the 2 side beams.
Furthermore, the structure of the side beam is a hollow sealing structure with a hollow cavity and comprises a side beam upper cover plate, a side beam lower cover plate and a side beam vertical plate which are fixed together, the whole shape of the side beam is an M-shaped structure with a concave middle part and convex two ends, and the convex end parts at the two ends of the side beam are fixed with an axle box suspension side beam side installation seat, a longitudinal stopping block and a vertical stopping block.
Further, when the axle box suspension assembly is connected with the end part of the independent wheel pair assembly and the end part of the U-shaped framework, one end of the axle box suspension assembly is fixed on an axle box suspension wheel opposite side mounting seat of the axle bridge platform, and the other end of the axle box suspension assembly is connected with an axle box suspension side beam side mounting seat of the side beam in a pressing mode.
Furthermore, the structure of the cross beam is a hollow sealing structure with a hollow cavity, and the cross beam comprises a cross beam upper cover plate, a cross beam lower cover plate and a cross beam vertical plate which are fixed together, wherein a series of longitudinal pull rod cross beam side installation seats are arranged on the longitudinal outer side of the middle part of the cross beam.
Further, the longitudinal tie rod is fixed by being hinged with the longitudinal tie rod wheel pair side mounting seat and the longitudinal tie rod beam side mounting seat respectively.
Furthermore, each side of the cross beam is provided with two crossed longitudinal pull rods.
Furthermore, the intersection point of the extension lines of the crosswise distributed series of longitudinal pull rods is positioned on the central line of the axle bridge.
Compared with the prior art, the invention has the following beneficial effects:
1. the axle box suspension assembly provides vertical rigidity and smaller longitudinal and transverse rigidity, so that the vertical rigidity is not affected, the rigidity of the rocker angle of the independent wheel pair is reduced through the smaller longitudinal and transverse positioning rigidity, the active guide control of the independent wheel pair driven by the motor is facilitated, and the effectiveness of the curve radial passing of the independent wheel pair is guaranteed.
2. The independent wheel is directly driven by the hub motor arranged on the outer side of the independent wheel, related transmission assemblies and complex mechanical structures are reduced, and the arrangement of the hub motor on the outer side of the independent wheel does not influence the structure of a middle axle and a low floor.
3. The four independent wheels are respectively driven by the four wheel hub motors, and the independent wheels of the bogie can be controlled by the motor drive combined with traction and active guiding to carry out main line centering and curve active guiding, so that the abrasion between wheel tracks and the wheel flange guiding are effectively reduced.
4. The longitudinal pull rod successfully decouples the transmission of the longitudinal traction or braking force of the bogie from the traditional transmission of suspension through the axle box, the flexible axle box positioning rigidity can meet the requirement of active guiding, the radial passing curve of the wheel pair is realized, the longitudinal traction and the braking force of the wheel pair are effectively transmitted by the longitudinal pull rod, and the safety and the stability of the longitudinal traction operation of the bogie are ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an independent wheel set assembly of the present invention;
FIG. 3 is a schematic structural view of a U-shaped frame according to the present invention;
FIG. 4 is a schematic structural view of a bottom bracket suspension assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a tie rod according to an embodiment of the invention.
Reference numerals:
1-independent wheel pair assembly; 1.1-independently rotating the wheel; 1.2-axle bridge; 1.3-axle box; 1.4-axle bridge platform; 1.5-mounting seats at opposite sides of the axle box suspension wheels; 1.6-a longitudinal pull rod wheel pair side mounting seat; 2-a hub motor assembly; 3-U-shaped framework; 3.1-side beam; 3.1.1-side beam upper cover plate; 3.1.2-side beam lower cover plate; 3.1.3-side beam vertical plates; 3.2-beam; 3.2.1-beam upper cover plate; 3.2.3-crossbeam vertical plate; 3.3-pulling the end beam; 3.4-axle box suspension side beam side mounting seats; 3.5-a longitudinal stop; 3.6-a vertical stop; 3.7-a longitudinal pull rod beam side mounting base; 4-axle box suspension assembly; 4.1-rubber element; 4.2-metal plate; 5-a tie rod; 5.1-a drag link body; 5.2-draw bar ball pivot; 5.2.1-pull rod shaft core; 5.2.2-rubber sleeve.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example one
As shown in figure 1, the independent wheel set bogie based on low-rigidity axle box suspension and double primary longitudinal pull rods is suitable for low-floor tramcar vehicles adopting traction and active guide control and comprises an independent wheel set assembly 1, an in-wheel motor assembly 2, a U-shaped framework 3, an axle box suspension assembly 4 and a primary longitudinal pull rod 5, wherein the in-wheel motor assembly 2 drives and controls the independent wheel set assembly 1, the axle box suspension assembly 4 is connected with the end part of the independent wheel set assembly 1 and the end part of the U-shaped framework 3 to provide vertical rigidity and smaller longitudinal rigidity and transverse rigidity, the primary longitudinal pull rod 5 is connected with the middle part of the independent wheel set assembly 1 and the middle part of the U-shaped framework 3 to effectively transfer longitudinal traction force and braking force between the independent wheel set assembly 1 and the U-shaped framework 3.
In this embodiment, the axle box suspension wheel opposite-side mounting seat 1.5 located below the axle box suspension assembly 4 is rigidly connected to the end of the axle box through a bolt, the axle box suspension side beam side mounting seat 3.4 located above the axle box suspension assembly 4 is welded to the U-shaped frame 3, and the axle box suspension assembly 4 is respectively connected to the axle box suspension wheel opposite-side mounting seat 1.5 and the axle box suspension side beam side mounting seat 3.4 through a compression method.
As shown in fig. 2, the independent wheel set assembly 1 includes two independent rotating wheels 1.1 located on left and right outer sides, the independent rotating wheels 1.1 are rotatably connected through an axle bridge 1.2, an axle box 1.3 for rotatably connecting the independent rotating wheels 1.1 is arranged at an end of the axle bridge 1.2, an axle bridge platform 1.4 symmetrical with respect to the axle bridge 1.2 is arranged at an end of the axle box 1.3, axle box suspension wheel opposite side mounting seats 1.5 are arranged at two ends of the axle bridge platform 1.4, a series of longitudinal tension rod wheel set side mounting seats 1.6 are welded at the middle part of the axle bridge 1.2, and the series of longitudinal tension rod wheel set side mounting seats 1.6 are located on the outer side of the axle bridge 1.2.
The axle bridge 1.2 and the axle bridge platform 1.4 symmetrical along the axle bridge direction form an H-shaped structure at the end part.
The wheel hub motor assembly 2 is coaxially connected with the independent rotating wheel 1.1 and is arranged on the outer side of the independent wheel pair assembly 1, and the wheel rail motor assembly 2 provides driving and control torque for the independent rotating wheel 1.1.
As shown in fig. 3, the U-shaped frame 3 includes side beams 3.1, cross beams 3.2 and towing end beams 3.3, wherein the number of the side beams 3.1 is 2, and the side beams are respectively fixed on two sides of the cross beams 3.2, and the number of the towing end beams 3.3 is 1, and the side beams 3.1 are fixed on the same end of the 2 side beams 3.1.
The structure of the side beam 3.1 is a hollow sealing structure with a hollow cavity, and comprises a side beam upper cover plate 3.1.1, a side beam lower cover plate 3.1.2 and a side beam vertical plate 3.1.3 which are fixed together, the whole shape of the side beam 3.1 is an M-shaped structure with a concave middle and convex two ends, and axle box suspension side beam side installation seats 3.4, a series of longitudinal stopping blocks 3.5 and a series of vertical stopping blocks 3.6 are fixed at the convex end parts of the two ends of the side beam 3.1.
When the axle box suspension assembly 4 is connected with the end part of the independent wheel pair assembly 1 and the end part of the U-shaped framework 3, one end of the axle box suspension assembly is fixed on an axle box suspension wheel opposite side mounting seat 1.5 of the axle bridge platform 1.4, and the other end of the axle box suspension assembly is connected with an axle box suspension side beam side mounting seat 3.4 of the side beam 3.1 in a pressing mode.
The crossbeam 3.2 is a hollow sealing structure with a hollow cavity and comprises a crossbeam upper cover plate 3.2.1, a crossbeam lower cover plate and a crossbeam vertical plate 3.2.3 which are fixed together, and a longitudinal pull rod crossbeam side mounting seat 3.7 is arranged on the longitudinal outer side of the middle part of the crossbeam 3.2.
As shown in fig. 5, the first-line longitudinal tie rod 5 includes a traction tie rod body 5.1, a tie rod mandrel 5.2.1 and a rubber sleeve 5.2.2, the two ends of the traction tie rod body 5.1 are provided with ball hinge mounting holes, the tie rod mandrel 5.2.1 forms a tie rod ball hinge 5.2 through the interference fit of the rubber sleeve 5.2.2 and the ball hinge mounting holes, the tie rod ball hinge 5.2 at the two ends of the first-line longitudinal tie rod 5 allows the tie rod mandrel 5.2.1 at the two ends to rotate around the three axes x, y and z within a certain angle relative to the traction tie rod body 5.1, the two first-line longitudinal tie rods 5 at the same side are horizontally distributed in a crossed manner, the intersection point of the extension lines thereof is located at the center of the axle 1.2, and the arrangement structure operates when the independent wheel pair unit 1 performs a swinging motion relative to the U-shaped frame 3, the rotation center of the independent wheel pair is the axle.
The center of the spherical hinge mandrel 5.2.1 is of a spherical structure, the torsional rigidity and the swing rigidity of the rubber sleeve 5.2.2 are small, the rotation of the spherical hinge mandrel 5.2 around each shaft in the rotation range is almost not hindered, the large-range sinking and floating displacement between the independent wheel set 1 and the U-shaped framework 3 can be met, and the relative transverse movement, the swinging movement and the side rolling of the independent wheel set 1 and the U-shaped framework 3 are limited in a certain range by the spherical hinge mandrel 5.2 and the installation seat clearance.
Each side of the cross beam 3.2 is provided with two crossed longitudinal pull rods 5, the intersection point of the extension lines of the crossed longitudinal pull rods 5 is positioned on the central line of the axle bridge 1.2, so that the independent rotating wheel 1.1 can rotate around the U-shaped framework 3, and the crossed longitudinal pull rods 5 are respectively hinged with a longitudinal pull rod wheel pair side mounting seat 1.6 and a longitudinal pull rod cross beam side mounting seat 3.7 through pull rod spherical hinges 5.2 on two sides for fixing.
The wheel pair side mounting base 1.6 and the beam side mounting base 3.7 are provided with rotary hinge mounting holes, the pull rod mandrel 5.2.1 is hinged through rotating with the rotary hinge mounting holes, and the pull rod mandrel 5.2.1 rotates along the axial direction around the wheel pair side mounting base 1.6 and the beam side mounting base 3.7.
As shown in fig. 4, the axle box suspension assembly 4 is of a laminated spring structure and comprises a plurality of rubber elements 4.1, metal plates 4.2 are arranged between the rubber elements 4.1, the metal plates 4.2 are connected with the rubber elements 4.1 through vulcanization bonding, so that the suspension mainly bears shear deformation in the longitudinal direction and bears compression shear in other directions to conform to deformation, process fillets are arranged at the bonding positions, expansion gaps are reserved at the edges of the rubber elements 4.1 and the metal plates 4.2, and the rubber elements 4.1 and the metal plates 4.2 face side beams 3.1 of the U-shaped framework 3.
In this embodiment, since the bogie of the independent wheel pair applied to active steering needs to have a lower primary positioning stiffness, the axle box suspension assembly 4 adopts a laminated spring structure, the number of the rubber elements 4.1 is 4, and each layer of the rubber elements 4.1 is of an inverted V-shaped structure.
The rubber element 4.1 at the lowest end of the axle box suspension assembly 4 is supported on an axle box suspension wheel opposite side mounting seat 1.5 rigidly connected by a bolt and an axle bridge 1.2, the upper part of the axle box suspension assembly 4 and the axle box suspension side beam side mounting seat 3.4 welded at the end part of the middle side beam 3.1 of the U-shaped framework 3 are pressed by the loaded weight, the axle box suspension assembly 4 in the embodiment can provide smaller longitudinal rigidity, and further the whole bogie has smaller independent wheel pair shaking rigidity, thereby meeting the requirement of active steering control.
The longitudinal pull rod 5 transmits longitudinal traction and braking force from the independent wheel pair 1 to the U-shaped framework 3, so that the problem of operation safety caused by large relative displacement and large corner between the independent wheel pair 1 and the U-shaped framework 3 due to the fact that longitudinal force is transmitted by the small-rigidity axle box suspension assembly 4 is solved.
The invention provides an independent wheel set bogie adopting low-rigidity axle box suspension and double primary longitudinal pull rods, which has smaller longitudinal and transverse positioning rigidity due to the special structure of an axle box suspension assembly 4, the vertical rigidity is the same as that of a normal bogie, the lower axle box suspension positioning rigidity meets the requirement of active guiding control, an active guiding control hub motor assembly 2 outputs control torque to drive an independent wheel 1.1 to rotate, torque enables the bogie to achieve linear centering and curve active guiding during operation, reduces abrasion among wheel rails and wheel flange guiding, and solves the problem that the traction and braking torque from an independent wheel set 1 cannot be effectively transmitted due to the smaller axle box suspension positioning rigidity at the same time, the invention adopts a primary longitudinal pull rod structure which is arranged in a cross way, and the independent wheel set 1 is connected with a U-shaped framework 3 by using two primary longitudinal pull rods 5 which are distributed in a cross way, the cross intersection point of the two traction pull rods is positioned on the axis of the axle bridge 1.2, so that the wheel set assembly can rotate around the center of the axle bridge 1.2 when the wheel set assembly 1 swings relatively relative to the U-shaped framework 3 under a curve or an active control working condition, the driving force and the braking force from the independent wheel set 1 are effectively transmitted by the traction pull rods, and the small-rigidity axle box suspension assembly 4 which is also connected with the independent wheel set 1 and the U-shaped framework 3 meets the requirement of active guiding.
In addition, it should be noted that the specific implementation examples described in this specification may have different names, and the above contents described in this specification are only illustrations of the structures of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the invention. Various modifications or additions may be made to the described embodiments or methods may be similarly employed by those skilled in the art without departing from the scope of the invention as defined in the appending claims.
Claims (10)
1. An independent wheel pair bogie based on low rigidity axle box suspension and double-series longitudinal pull rods is suitable for a low-floor tramcar controlled by traction and active guidance, it is characterized by comprising an independent wheel set assembly (1), a wheel hub motor assembly (2), a U-shaped framework (3), an axle box suspension assembly (4) and a series of longitudinal pull rods (5), the hub motor assembly (2) drives and controls the independent wheel assembly (1), the axle box suspension assembly (4) connects the end part of the independent wheel pair assembly (1) and the end part of the U-shaped framework (3) and provides vertical rigidity and smaller longitudinal and transverse rigidity, the system of longitudinal pull rods (5) is connected with the middle part of the independent wheel set assembly (1) and the middle part of the U-shaped framework (3), and longitudinal traction force and braking force between the independent wheel set assembly (1) and the U-shaped framework (3) are effectively transmitted.
2. An independent wheel pair bogie based on low rigidity pedestal suspension and double-train longitudinal tie rods according to claim 1, characterized in that the independent wheel pair assembly (1) comprises two independent rotating wheels (1.1) positioned at left and right outer sides, the independent rotating wheels (1.1) are rotatably connected through an axle bridge (1.2), the end part of the axle bridge (1.2) is provided with an axle box (1.3) for the independent rotating wheels (1.1), the end part of the axle box (1.3) is provided with an axle bridge platform (1.4) symmetrical about the axle bridge (1.2), the two ends of the axle bridge platform (1.4) are provided with suspension wheel opposite side mounting seats (1.5), and the middle part of the axle bridge (1.2) is welded with a train of longitudinal tie rod wheel pair side mounting seats (1.6).
3. The bogie for independent wheel pair based on low rigidity axlebox suspension and double-series longitudinal tie rods according to claim 2 is characterized in that the wheel hub motor assembly (2) is coaxially connected with the independent rotating wheel (1.1) and is arranged outside the independent wheel pair assembly (1), and the wheel rail motor assembly (2) provides driving and controlling moment for the independent rotating wheel (1.1).
4. An independent wheel pair bogie based on low stiffness axlebox suspension and tandem longitudinal tie rods according to claim 2, characterized in that the U-shaped frame (3) comprises side beams (3.1), cross beams (3.2) and trailing end beams (3.3), the number of the side beams (3.1) is 2, respectively fixed on both sides of the cross beam (3.2), the number of the trailing end beams (3.3) is 1, fixed on the same end of the 2 side beams (3.1).
5. The bogie for independent wheel pair based on low-rigidity pedestal suspension and double-tandem longitudinal tie rods according to claim 4 is characterized in that the structure of the side beam (3.1) is a hollow sealing structure with a hollow cavity, and comprises a side beam upper cover plate (3.1.1), a side beam lower cover plate (3.1.2) and a side beam vertical plate (3.1.3) which are fixed together, the overall shape of the side beam (3.1) is a M-shaped structure with a concave middle part and convex two ends, and the convex end parts at the two ends of the side beam (3.1) are fixed with a pedestal suspension side beam side mounting seat (3.4), a series of longitudinal stops (3.5) and a series of vertical stops (3.6).
6. An independent wheelset bogie based on low stiffness pedestal suspension and dual-tandem longitudinal tie rods according to claim 5, characterized in that when the pedestal suspension assembly (4) connects the end of the independent wheelset assembly (1) with the end of the U-shaped frame (3), one end is fixed on the pedestal suspension wheel-side mounting seat (1.5) of the axle platform (1.4) and the other end is connected with the pedestal suspension side beam side mounting seat (3.4) of the side beam (3.1) in a pressing manner.
7. An independent wheel pair bogie based on low stiffness pedestal suspension and dual-tie longitudinal tie rods according to claim 4, characterized in that the structure of the cross beam (3.2) is a hollow sealing structure with a hollow cavity, and comprises a cross beam upper cover plate (3.2.1), a cross beam lower cover plate and a cross beam vertical plate (3.2.3) which are fixed together, and a tie longitudinal tie rod cross beam side mounting seat (3.7) is arranged on the longitudinal outer side of the middle part of the cross beam (3.2).
8. An independent wheelset bogie based on low stiffness axlebox suspension and dual primary longitudinal tie rods according to claim 7, characterized in that the primary longitudinal tie rods (5) are fixed by hinging with a primary longitudinal tie rod wheelset side mount (1.6) and a primary longitudinal tie rod beam side mount (3.7), respectively.
9. An independent wheel pair bogie based on low stiffness axlebox suspension and double-row longitudinal tie according to claim 4 characterized in that two crosswise arranged rows of longitudinal tie (5) are provided on each side of the cross beam (3.2).
10. An independent wheel pair bogie based on low stiffness axlebox suspension and double-row longitudinal tie according to claim 9, characterized in that the intersection point of the extension lines of the crossing row of longitudinal tie (5) is located on the centre line of the axle bridge (1.2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011181097.2A CN112298245A (en) | 2020-10-29 | 2020-10-29 | Independent wheel pair bogie based on low-rigidity axle box suspension and double-primary longitudinal pull rod |
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| CN202011181097.2A CN112298245A (en) | 2020-10-29 | 2020-10-29 | Independent wheel pair bogie based on low-rigidity axle box suspension and double-primary longitudinal pull rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954899A (en) * | 2021-11-17 | 2022-01-21 | 北京交通大学 | Axle bridge type independent wheel pair with back inclination angle |
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| CN109484424A (en) * | 2018-11-19 | 2019-03-19 | 中车长春轨道客车股份有限公司 | A kind of independent wheel bogie of linear motor driving |
| CN111452819A (en) * | 2020-05-11 | 2020-07-28 | 中唐空铁科技有限公司 | Air-rail bogie and suspension type air-rail train |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954899A (en) * | 2021-11-17 | 2022-01-21 | 北京交通大学 | Axle bridge type independent wheel pair with back inclination angle |
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Application publication date: 20210202 |