AU2019218536A1 - Flexible axle box, assembly method therefor and bogie - Google Patents
Flexible axle box, assembly method therefor and bogie Download PDFInfo
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- AU2019218536A1 AU2019218536A1 AU2019218536A AU2019218536A AU2019218536A1 AU 2019218536 A1 AU2019218536 A1 AU 2019218536A1 AU 2019218536 A AU2019218536 A AU 2019218536A AU 2019218536 A AU2019218536 A AU 2019218536A AU 2019218536 A1 AU2019218536 A1 AU 2019218536A1
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- axle box
- flexible axle
- sides
- crossbeam
- box body
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A flexible axle box, an assembly method therefor and a bogie, the bogie comprising two wheelsets (1), two sides of each wheelset (1) being symmetrically provided with a flexible axle box, the flexible axle box comprising a flexible axle box body (2), a side frame (3) being arranged on the two flexible axle box bodies (2) on a same side, a crossbeam (4) being perpendicularly arranged between the side frames (3) on the two sides, two ends of the crossbeam (4) being arranged at central portions of the side frames (3) via central damping suspension apparatuses (5), X-shaped connecting rods (6) being arranged beneath the crossbeam (4), two axial ends of each X-shaped connecting rod (6) respectively passing through webs on two sides of the crossbeam (4) to be fixedly connected to the side frames (3). The structure suppresses bogie hunting motion, and increases the hunting motion instability critical speed.
Description
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[0001] This application claims the priorities of Chinese Patent Application No. 201810135984.2, filed with China Patent Office on February 9, 2018, and Chinese Patent Application No. 201820244761.5, filed with China Patent Office on February 9, 2018, each of which is incorporated herein by reference in its entirety.
[0002] The present disclosure relates to the technical field of bogies, and in particular to a flexible axle box, an assembly method for assembling the flexible axle box, and a bogie.
[0003] A railway vehicle is a vehicle that runs on dedicated tracks. A bogie of a railway vehicle supports the weight of the entire cargo and the weight of the vehicle body. The railway vehicle runs along the dedicated tracks and guides itself without direction control. The bogie is an important part of a railway vehicle. The bogies of railway vehicles are mostly three-piece structures consisting of two side beams and one crossbeam. The three-piece bogies have advantages of being simple in structure, having uniform wheel load-bearing capacity, and low manufacture and maintenance costs.
However, because the connection between wheelsets and side beams is too loose or too tight, it is not conducive to the positioning of wheelsets and prone to cause instability of wheelsets. In addition, there is no direct connection between the crossbeams and the side beams, which results in loose structure of crossbeams and side beams, low anti-warp performance, and is prone to cause structural instability, limited running speed and poor running quality. A device between the wheelset and the side beam is called an axle box suspension device, and a device between the side beam and the crossbeam is called a central suspension devices. At present, a decussate supporting device or a spring planks is installed between the side beams to solve the problem of insufficient anti-warp performance of the three-piece bogie. The installation of the decussate supporting device or the spring plank solves connection problem between the crossbeam and the side beam. However, the
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installation of too many accessories makes the bogie more complicated. At the same time, it is also not conducive to quality control of the accessories, and the installation is too cumbersome. Furthermore, the connection problem between the wheelsets and the side beams have not been addressed yet. Therefore, it is of great practical significance to improve connection between wheelsets and side beams of a bogie and improve performance of wheelsets against hunting instability so as to improve running quality of railway vehicles.
[0004] Axle boxes and side beam guide frames of existing truck bogies are usually rigidly positioned by dry friction, and the friction force increases linearly. Some bogie solutions employ elastic positioning, but the number of accessories is too large, the installation process is cumbersome, and the effect is limited. With the development of science and technology, the running speed and the axle load of existing railway truck are constantly increasing. In order to improve running quality of vehicles, reduce running costs and maximize benefits, some newly developed railway truck bogies began to adopt central secondary spring suspension, and an axle box suspension device is provided at the axle box, thereby reducing unsprung mass and wheel rail dynamic force, and improving running performance of the vehicle.
[0005] At present, requirements for railway transportation are getting higher and higher, which not only requires faster speed, but also requires larger load capacity and stable running. With the increase in running speed, it is more likely to arouse a yawing movement of a vehicle body when the wheelsets move along the rails, which will reduce the running quality of the vehicle, and in serious cases, may also cause derailment accidents. A wheel-rail lateral force of the vehicle should not be too large when the vehicle passes a curve; otherwise, the vehicle may also derail. The structure and parameters of the axle box suspension device affect a linear-hunting movement critical speed of a vehicle and a curve passing performance of the vehicle. In order to improve a critical speed of hunting movement when a vehicle is running on a straight line, it is required that the axle box suspension wheelsets can achieve three-way positioning, and the elastic rigidity in three directions can be set individually and arbitrarily as required. A person with common sense of vehicles knows that a linear-hunting movement critical speed and a curve passing performance of a vehicle are contradictory to each other, and it is often difficult to take into account of the two parameters simultaneously in the design of a bogie.
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[0006] However, existing axle box suspension devices generally adopt rigid positioning or primary longitudinal rigid positioning in a longitudinal direction, and there is a dry-friction rigid fixation between an adaptor and a side beam guide frame; the friction force increases linearly and it cannot be adapted to high-speed running; and there is a larger wheel-rail lateral force, which increases risk of vehicle derailment. Some bogie solutions employ elastic positioning, but the number of accessories is too large; the installation process is cumbersome due to structural limitations, and the effect is limited; it is impossible to take into account both the critical speed of linear-hunting movement and the curve passing performance of a vehicle, thereby greatly reducing the effect of an elastic suspension.
[0007] The present disclosure provides a flexible axle box, an assembly method for assembling the flexible axle box, and a bogie to solve at least one of the problems in the prior art described above.
[0008] In one aspect, one or more embodiments of the present disclosure provide a flexible axle box comprising a flexible axle box body. The flexible axle box body comprises an arched top plate and side plates symmetrically provide on both sides of the arched top plate, and the side plates on both
sides being are arranged in a "A" shape; a side beam is provided on the flexible axle box body, and
both ends of the side beam are provided with guide frames respectively; the guide frame has a "A"
shaped opening, and inner walls on both sides of the opening are provided with slide grooves; the side plates on both sides of the flexible axle box body match with the inner walls on both sides of the opening in shape, and outer walls of the side plates on the both sides of the flexible axle box body are each provided with protruded bars for being inserted into the slide grooves and slidingly engaged with the slide grooves.
[0009] In some embodiments of the present disclosure, a first flexible body is provided at a top of the flexible axle box body, and a second flexible body is provided at the both sides of the flexible axle box body.
[0010] In some embodiments of the present disclosure, the first flexible body has a tapered cylindrical structure, and the second flexible body has a circular, elliptical or polygonal cross section.
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[0011] In a further aspect, one or more embodiments of the present disclosure also provide a method for assembling the flexible axle box according to the present disclosure, which comprises: aligning the side plates on the both sides of the flexible axle box body with the inner walls on the both sides of the opening of the side beam; then inserting the protruded bars on the outer walls of the side plates on the both sides of the flexible axle box body into the slide grooves on the inner walls on the both sides of the opening correspondingly; and finally pushing the flexible axle box body along the slide grooves until it is tightly engaged with the side beam.
[0012] In still a further aspect, one or more embodiments of the present disclosure further provide a bogie comprising two sets of wheelsets; wherein, each set of the wheelset is symmetrically provided with the flexible axle boxes according to the present disclosure on both sides, and the flexible axle box comprises the flexible axle box body; a side beam is provided on two flexible axle box bodies on the same side, and a crossbeam is provided between the side beams on both sides and is perpendicular to the side beams;
[0013] two ends of the crossbeam are provided at a middle portion of the side beams through central vibration-damping suspension devices; an X-shaped connecting rod member is provided beneath the crossbeam, and axial ends of connecting rods of the X-shaped connecting rod member respectively penetrate through webs on both sides of the crossbeam and are fixedly connected to the side beams.
[0014] In some embodiments of the present disclosure, the X-shaped connecting rod member is formed by intersecting and fixing a first connecting rod and a second connecting rod, and a crossing center of the X-shaped connecting rod member and a center of the crossbeam are arranged directly opposite.
[0015] In some embodiments of the present disclosure, side bearing casings are provided on a top surface of the crossbeam at both ends in a longitudinal direction, and elastic side bearings are provided in the side bearing casings.
[0016] In some embodiments of the present disclosure, the webs on the both sides of the crossbeam are provided with web holes for the X-shaped connecting rod member to pass through.
[0017] In some embodiments of the present disclosure, spring seats are provided at a middle portion of the side beams respectively, and the two ends of the crossbeam are provided on the spring seats through the central vibration-damping suspension devices.
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[0018] In some embodiments of the present disclosure, the central vibration-damping suspension device comprises a suspension bracket provided at each of the two ends of the crossbeam in a longitudinal direction and a spring provided beneath the suspension bracket; a top end of the spring abuts a bottom end of the suspension bracket, and a bottom end of the spring abuts the spring seat.
[0019] Fig. 1 is a schematic structural perspective view of a bogie of a flexible axle box suspension truck according to one or more embodiments of the present disclosure;
[0020] Fig. 2 is a schematic structural plan view of the bogie of a flexible axle box suspension truck of Fig. 1;
[0021] Fig. 3 is an enlarged schematic structural view of the crossbeam and the side beams of Fig. 1;
[0022] Fig. 4 is an enlarged schematic structural view of the crossbeam of Fig. 1;
[0023] Fig. 5 is an enlarged schematic structural view of the side beam of Fig. 1;
[0024] Fig. 6 is a schematic structural cross-sectional view taken along the direction A in Fig. 5;
[0025] Fig. 7 is an enlarged schematic structural view of the flexible axle box of Fig. 1;
[0026] Fig. 8 is a schematic structural side view of the flexible axle box shown in Fig. 7;
[0027] Fig. 9 is a cross-sectional view showing a first flexible body in Fig. 7; and
[0028] Fig. 10 is a cross-sectional view showing a second flexible body in Fig. 7.
Reference numerals in the Figures are listed as below:
[0029] 1 - wheelset; 2 - flexible axle box body; 2.1 - arched top plate; 2.2 - side plate; 2.3 - protruded bar; 2.4 - first flexible body; 2.5 - second flexible body; 3 - side beam; 3.1 opening; 3.2 - guide frame; 3.3 - slide groove; 3.4 - spring seat; 4 - crossbeam; 4.1 - side bearing casing; 4.2 - web hole; 5 - central vibration damping suspension device; 5.1 suspension bracket; 5.2 - spring; 6 - X-shaped connecting rod member; 6.1 - first connecting rod; 6.2 - second connecting rod; 7 - elastic side bearing.
[0030] One or more embodiments of the present disclosure will be further described in detail below with reference to accompanying drawings.
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[0031] One or more embodiments of the present disclosure provide a flexible axle box, an assembly method for assembling the flexible axle box, and a bogie. The bogie can meet the requirements on a critical speed of linear-hunting movement and a curve passing performance of a vehicle simultaneously, thereby greatly improving the function of an elastic suspension of the axle box.
[0032] As shown in Figs. 1 to 3, the bogie of a flexible axle box suspension truck according to one or more embodiments of the present disclosure comprises two sets of wheelsets 1. Each set of the wheelset 1 is symmetrically provided with the flexible axle boxes on both sides. The flexible axle box comprises a flexible axle box body 2. A side beam 3 is provided on two flexible axle box bodies 2 on the same side. A crossbeam 4 is provided between the side beams 3 on both sides and is perpendicular to the side beams 3. Two ends of the crossbeam 4 are provided at a middle portion of the side beams 3 through central vibration-damping suspension devices 5. An X-shaped connecting rod member 6 is provided beneath the crossbeam 4, and axial ends of connecting rods of the X shaped connecting rod member 6 respectively penetrate through webs on both sides of the crossbeam 4 and are fixedly connected to the side beams 3. The X-shaped connecting rod member 6 is formed by intersecting and fixing a first connecting rod 6.1 and a second connecting rod 6.2, and a crossing center of the X-shaped connecting rod member 6 and a center of the crossbeam 4 are arranged directly opposite. In this way, during the running of the vehicle, the X-shaped connecting rod member 6 can effectively control mutual movement of the left and right side beams 3, so as to achieve the purpose of restraining a hunting movement of the bogie and increase a instability critical speed of hunting movement of the bogie.
[0033] As shown in Fig. 4, side bearing casings 4.1 are provided on a top surface of the crossbeam 4 at both ends in a longitudinal direction, and elastic side bearings 7 are provided in the side bearing casings 4.1. The webs on the both sides of the crossbeam 4 are provided with web holes 4.2 for the X-shaped connecting rod member 6 to pass through. In one or more embodiments of the present disclosure, the side bearing casings 4.1 are provided on the top surfaces of the crossbeam 4 at both ends in a longitudinal direction, and the elastic side bearings 7 are provided in the side bearing casings 4.1; the elastic side bearings 4.1 contain elastomers. When the vehicle is running, a frictional force is generated between an upper side bearing friction surface on the vehicle body and a lower side bearing friction surface on the bogie under the effect of a preload of the vehicle body, and a direction of a friction torque generated by the left and right side bearings is opposite to a rotary
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direction of the bogie relative to the vehicle body, so as to achieve the purpose of restraining a hunting movement of the bogie, and increase a instability critical speed of hunting movement. At the same time, the elastic side bearings can bear part of vertical load, and can provide a certain amount of rotation resistance torque to the running bogie to restrain its yawing-hunting movement. Furthermore, it can restrain the rolling movement of the vehicle body, which is beneficial to the safety of the vehicle in terms of anti-overturning performance.
[0034] As shown in Fig. 5 and Fig. 6, both ends of the side beam 3 are provided with guide frames 3.2 respectively; the guide frame 3.2 has a "Y"-shaped opening 3.1; a middle portion of inner walls
on both sides of the opening 3.1 are provided with slide grooves 3.3. The flexible axle box body 2 comprises an arched top plate 2.1 with a semicircular shape and side plates 2.2 that are symmetrically provided on both sides of the arched top plate 2.1, and the side plates on both sides are arranged in a "A" shape. The side plates 2.2 on both sides of the flexible axle box body 2 match with the inner walls of on the both sides of the opening 3.1 in shape, and outer walls of the side plates 2.2 on the both sides of the flexible axle box body 2 are each provided with protruded bars 2.3 for being inserted into the slide grooves 3.3 and slidingly engaged with the slide grooves 3.3. A top surface of the flexible axle box body 2 cooperates with a top surface of the guide frame 3.2 of the side beam 3 to bear the load of the vehicle. A method for assembling the flexible axle box comprises the following steps: firstly aligning the side plates 2.2 on the both sides of the flexible axle box body 2 with the inner walls on the both sides of the opening 3.1 of the side beam 3; and then inserting the protruded bars 2.3 on the outer walls of the side plates 2.2 on the both sides of the flexible axle box body 2 into the slide grooves 3.3 on the inner walls on the both sides of the opening 3.1 correspondingly ; and finally pushing the flexible axle box body 2 from bottom to top until it is tightly engaged with the side beam 3. Since the flexible axle box body 2 and the guide frame 3.2 of the side beam 3 both have a "A" shape, the flexible axle box body 2 can be directly aligned and installed with the guide frame of the side beam 3. Thus, the installation is very convenient, and a lateral positioning of the flexible axle box body 2 can be realized.
[0035] As shown in Figs. 7 and 8, a first flexible body 2.4 having three-dimensional rigidity is provided at a top of the flexible axle box body 2, and a second flexible body 2.5 having three dimensional rigidity is provided at the both sides of the flexible axle box body 2. The three
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directional rigidity refers to rigidities in three directions, including longitudinal, transversal, and vertical directions relative to a running direction of the train. The first flexible body 2.4 has a tapered cylindrical structure, and the second flexible body 2.5 has a circular, elliptical or polygonal cross section. Fig. 9 shows that the first flexible body 2.4 has an inverted cone structure. Alternatively, the first flexible body 2.4 may also have a positive cone structure. Fig. 10 shows that the cross section of the second flexible body 2.5 is rectangular, circular, elliptical, and regular hexagonal. Alternatively, the cross section of the second flexible body 2.5 may also adopt other polygonal shapes. In this way, there are flexible bodies at the left and right sides as well as the top side of the flexible axle box body 2. The three-dimensional rigidity of the flexible axle box body 2 can be achieved by adjusting the flexibility of the flexible body. The three-dimensional rigidity of the flexible axle box can be adjusted arbitrarily by adjusting a hardness-softness property of the flexible body itself, a cross sectional shape, a size and a thickness of the flexible body, so that a high performance of the vehicle can be achieved.
[0036] In one or more embodiments of the present disclosure, as shown in Fig. 1, spring seats 3.4 are provided at a middle portion of the side beam 3, and the two ends of the crossbeam 4 are provided on the spring seat 3.4 through the central vibration-damping suspension device 5. The central vibration-damping suspension device 5 comprises a suspension bracket 5.1 provided at each of the two ends of the crossbeam 4 in a longitudinal direction and a spring 5.2 provided beneath the suspension bracket 5.1. A top end of the spring 5.2 abuts a bottom end of the suspension bracket 5.1, and a bottom end of the spring 5.2 abuts the spring seat 3.4. The central vibration-damping suspension device 5 can realize the dual functions of spring suspension and spring vibration damping.
[0037] Compared with the prior art, the flexible axle box, the assembly method thereof, and the bogie according to one or more embodiments of the present disclosure have at least the following technical effects or advantages:
[0038] First, according to one or more embodiments of the present disclosure, the side plates on both sides of the flexible axle box body match with the inner walls of the opening of the side beam on both sides in shape, and the outer walls of the side plates on both sides of the flexible axle box body are each provided with the protruded bars for being inserted into and slidingly engaged with the slide grooves on the inner walls of the both sides of the opening of the side beam; in this way, the
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protruded bars on the outer walls of the flexible axle box body at two sides are being inserting into the slide grooves on the inner walls on the both sides of the opening correspondingly, and the flexible axle box body can be pushed from bottom to top until it is tightly engaged with the side beam. Thus, the installation is very convenient and the lateral positioning of the flexible axle box body can be realized.
[0039] Second, according to one or more embodiments of the present disclosure, the X-shaped connecting rod member is provided beneath the crossbeam, and the axial ends of connecting rods of the X-shaped connecting rod member respectively penetrate through the webs on both sides of the crossbeam and are fixedly connected to the side beams. In this way, during the running of the vehicle, the X-type connecting rod member can effectively control mutual movement of the left and right side beams, so as to achieve the purpose of restraining a hunting movement of the bogie, and increase a instability critical speed of hunting movement of the bogie.
[0040] Third, according to one or more embodiments of the present disclosure, the side bearing casings are provided on the top surfaces of the crossbeam at both ends in a longitudinal direction, and the elastic side bearings are provided in the side bearing casings; the elastic side bearings contain elastomers. When the vehicle is running, a frictional force is generated between an upper side bearing friction surface on the vehicle body and a lower side bearing friction surface on the bogie under the effect of a preload of the vehicle body, and a direction of a friction torque generated by the left and right side bearings is opposite to a rotary direction of the bogie relative to the vehicle body, so as to achieve the purpose of restraining a hunting movement of the bogie, and increase a hunting movement instability critical speed. At the same time, the elastic side bearings can bear part of vertical load, and can provide a certain amount of rotation resistance torque to the running bogie to restrain its yawing-hunting movement. Furthermore, it can restrain the rolling movement of the vehicle body, which is beneficial to the safety of the vehicle in terms of anti-overturning performance.
[0041] Fourth, the structure of the flexible axle box suspension according to one or more embodiments of the present disclosure renders the railway truck a simple bogie structure, a good wheelset positioning effect, a good uniformity in wheel load, and a good running performance, so that the vehicle has a higher hunting critical speed and a lower wheel-rail lateral force at the same time to ensure a safe running of the vehicle.
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[0042] The above are only specific embodiments of the present disclosure. It should be pointed out that any changes or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed by the present disclosure should be covered by the protection scope of the present disclosure.
Claims (10)
1. A flexible axle box, comprising a flexible axle box body (2), wherein the flexible axle box body (2) comprises an arched top plate (2.1) and side plates (2.2) symmetrically provided on both sides of the arched top plate (2.1), and the side plates (2.2) on both sides are arranged in a"I" shape; a side beam (3) is provided on the flexible axle box body (2), and both ends of the side beam (3) are provided with guide frames (3.2) respectively; the guide frame (3.2) has a "Y"-shaped opening (3.1), and inner walls on both sides of the opening (3.1) are provided with slide grooves (3.3); and the side plates (2.2) on both sides of the flexible axle box body (2) match with the inner walls on the both sides of the opening (3.1) in shape, and outer walls of the side plates (2.2) on the both sides of the flexible axle box body (2) are each provided with protruded bars (2.3) for being inserted into the slide grooves (3.3) and slidingly engaged with the slide grooves (3.3).
2. The flexible axle box according to claim 1, wherein a first flexible body (2.4) is provided at a top of the flexible axle box body (2), and a second flexible body (2.5) is provided at the both sides of the flexible axle box body (2).
3. The flexible axle box according to claim 2, wherein the first flexible body (2.4) has a tapered cylindrical structure, and the second flexible body (2.5) has a circular, elliptical or polygonal cross-section.
4. A method for assembling the flexible axle box according to any one of claims 1-3, comprising: aligning the side plates (2.2) on the both sides of the flexible axle box body (2) with the inner walls on the both sides of the opening (3.1) of the side beam (3); inserting the protruded bars (2.3) on the outer walls of the side plates (2.2) on the both sides of the flexible axle box body (2) into the slide grooves (3.3) on the inner walls on the both sides of the opening (3.1) correspondingly; and pushing the flexible axle box body (2) along the slide grooves (3.3) until it is tightly engaged with the side beam (3).
5. A bogie, comprising two sets of wheelsets (1), wherein each set of the wheelset (1) is symmetrically provided with the flexible axle boxes according to any one of claims 1-3 on both sides and the flexible axle box comprises the flexible axle box body (2);
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a side beam (3) is provided on two flexible axle box bodies (2) on the same side, and a crossbeam (4) is provided between the side beams (3) on both sides and is perpendicular to the side beams (3); two ends of the crossbeam (4) are provided at a middle portion of the side beams (3) through central vibration-damping suspension devices (5); and an X-shaped connecting rod member (6) is provided beneath the crossbeam (4), and axial ends of connecting rods of the X-shaped connecting rod member (6) respectively penetrate through webs on both sides of the crossbeam (4) and are fixedly connected to the side beams (3).
6. The bogie according to claim 5, wherein the X-shaped connecting rod member (6) is formed by intersecting and fixing a first connecting rod (6.1) and a second connecting rod (6.2), and a crossing center of the X-shaped connecting rod member (6) and a center of the crossbeam (4) are arranged directly opposite.
7. The bogie according to claim 5 or 6, wherein side bearing casings (4.1) are provided on a top surface of the crossbeam (4) at both ends in a longitudinal direction, and elastic side bearings (7) are provided in the side bearing casings (4.1).
8. The bogie according to claim 5 or 6, wherein the webs on the both sides of the crossbeam (4) are provided with web holes (4.2) for the X-shaped connecting rod member (6) to pass through.
9. The bogie according to claim 5 or 6, wherein spring seats (3.4) are provided at a middle portion of the side beams (3), and the two ends of the crossbeam (4) are provided on the spring seats (3.4) through the central vibration-damping suspension devices (5).
10. The bogie according to claim 9, wherein the central vibration-damping suspension device (5) comprises a suspension bracket (5.1) provided at each of the two ends of the crossbeam (4) in a longitudinal direction and a spring (5.2) provided beneath the suspension bracket (5.1); and a top end of the spring (5.2) abuts a bottom end of the suspension bracket (5.1), and a bottom end of the spring (5.2) abuts the spring seat (3.4).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810135984.2A CN108238061A (en) | 2018-02-09 | 2018-02-09 | Flexible axle box and its assembly method and bogie |
| CN201820244761.5 | 2018-02-09 | ||
| CN201810135984.2 | 2018-02-09 | ||
| CN201820244761.5U CN207916859U (en) | 2018-02-09 | 2018-02-09 | Flexible axle box and its bogie |
| PCT/CN2019/080105 WO2019154439A1 (en) | 2018-02-09 | 2019-03-28 | Flexible axle box, assembly method therefor and bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2019218536A1 true AU2019218536A1 (en) | 2020-09-17 |
Family
ID=67548789
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2019218536A Pending AU2019218536A1 (en) | 2018-02-09 | 2019-03-28 | Flexible axle box, assembly method therefor and bogie |
| AU2019101813A Active AU2019101813A4 (en) | 2018-02-09 | 2019-03-28 | Flexible axle box, assembly method therefor and bogie |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2019101813A Active AU2019101813A4 (en) | 2018-02-09 | 2019-03-28 | Flexible axle box, assembly method therefor and bogie |
Country Status (2)
| Country | Link |
|---|---|
| AU (2) | AU2019218536A1 (en) |
| WO (1) | WO2019154439A1 (en) |
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| RU2608205C2 (en) * | 2015-01-26 | 2017-01-17 | Станислав Джахпарович Гамзалов | Three-link biaxial railway bogie and method of constructing standard series of bogies |
| EP3168106B1 (en) * | 2015-11-13 | 2020-06-17 | Aktiebolaget SKF | Railcar adapter for connecting a railcar body to a bearing |
| CN207916859U (en) * | 2018-02-09 | 2018-09-28 | 中车长江车辆有限公司 | Flexible axle box and its bogie |
| CN108238061A (en) * | 2018-02-09 | 2018-07-03 | 中车长江车辆有限公司 | Flexible axle box and its assembly method and bogie |
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2019
- 2019-03-28 WO PCT/CN2019/080105 patent/WO2019154439A1/en active Application Filing
- 2019-03-28 AU AU2019218536A patent/AU2019218536A1/en active Pending
- 2019-03-28 AU AU2019101813A patent/AU2019101813A4/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| AU2019101813A4 (en) | 2021-09-09 |
| WO2019154439A1 (en) | 2019-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS: APPLICATION IS TO PROCEED UNDER THE NUMBER 2019101813 |