CN216761753U - Bogie of inner axle box of railway vehicle - Google Patents

Abstract

The utility model discloses an inner axle box bogie of a railway vehicle, which adopts a structural mode that a bearing is arranged on the inner side of a wheel pair, adopts a primary suspension device of a splayed rubber pile device, can meet the reasonable horizontal positioning and the larger vertical suspension rigidity between the wheel pair and a framework, and has compact structure and economic cost; the secondary suspension device adopting the combination mode of the conical rubber spring and the laminated rubber spring in series connection can provide smaller vertical suspension rigidity and horizontal shear rigidity of the vehicle body and the bogie, has simple structure and compact arrangement, adopts the hinged framework structure for adapting to the larger vertical suspension rigidity of the primary suspension system, and can ensure the enough shear rigidity of the bogie on the premise of ensuring that the bogie adapts to the unsmooth line. Through the primary suspension device and the secondary suspension device of the bogie, the bogie has a transverse and longitudinal compact structure, the unsprung mass and the whole bogie mass are reduced to the maximum extent, and the aim of light weight can be obviously achieved.

Description

Railway vehicle inner axle box bogie

Technical Field

The utility model relates to a bogie of an inner axle box of a railway vehicle, and belongs to the technical field of railway vehicle bogies.

Background

The bogie as a core component of the railway vehicle can play the following roles: the load, length and volume of the vehicle are increased; the rolling of the wheels along the steel rails is converted into the translation of the vehicle body along the line through a bearing device; supporting the vehicle body; damping characteristics, etc.

The conventional three-piece bogie is mainly adopted in the conventional rail wagon bogie, and the high-speed running of a wagon cannot be realized by using the bogie, so that the development requirement of the current quick wagon cannot be met.

At present, the technical solution of the existing quick truck bogie does not meet the economic performance required by truck operation, so that a section of the existing quick truck bogie is required to meet the speed-up requirement of a current truck, and the economical and practical quick truck inner axle box bogie is realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of low running speed, heavy self-weight, high energy consumption and the like of the traditional three-piece bogie, adapt to the development requirements of the current fast freight car and provide an inner axle box bogie of a railway vehicle.

In order to achieve the above purpose, the utility model provides the following technical scheme:

an inner axlebox bogie for a railway vehicle, comprising:

each wheel set comprises two wheels, an axle and two shaft discs;

the framework is arranged on the inner side of the wheel pair, the framework is generally H-shaped and comprises a left T-shaped beam and a right T-shaped beam, the middle parts of the left T-shaped beam and the right T-shaped beam are provided with concave sections and are of a fish-belly structure, and the left T-shaped beam and the right T-shaped beam can mutually perform mutual free point-head rotation around a transverse shaft;

the primary suspension device is arranged on the inner side of the wheel pair and comprises a bearing, a shaft box body and a splayed rubber pile device;

the basic brake device comprises four shaft disc basic brake devices, the shaft disc basic brake devices are positioned on the inner side of the framework, the shaft disc basic brake devices are matched with the shaft discs, and the shaft disc basic brake devices are connected with the framework by adopting three-point hanging;

and the secondary suspension device comprises four spring groups, and every two spring groups are transversely and symmetrically arranged on one left T-shaped beam and one right T-shaped beam of the framework.

By adopting the railway vehicle inner axle box bogie, the arrangement mode that the bearings are installed on the inner side of the wheel pair is adopted, the framework is supported on the inner side of the wheel pair, the length of an axle is effectively shortened, and the unsprung mass of the bogie is reduced, so that the self weight of the bogie is reduced, the abrasion of a curved wheel track is effectively reduced, and the curve passing performance is improved. The left T-shaped beam and the right T-shaped beam are of box-shaped structures and are formed by welding a cover plate and a web plate, the strength of the left T-shaped beam and the strength of the right T-shaped beam can be enhanced by adopting the web plate and the cover plate, and the bearing capacity of the left T-shaped beam and the right T-shaped beam is improved; the primary suspension device can meet the vertical rigidity and the horizontal positioning rigidity between the framework and the wheel pair in a splayed rubber pile mode, is compact in structure and can further reduce the axle distance of the bogie; the secondary suspension device is added, namely, the vertical and transverse performances of the bogie can be improved by adopting the secondary suspension, the running speed of the bogie is improved, and the secondary spring is transversely arranged at the center of a side beam of the bogie frame, so that the proper vertical suspension rigidity and horizontal shearing rigidity between the bogie and the bogie can be provided, and the running speed of the bogie is improved. Through the primary suspension device and the secondary suspension device of the bogie, the bogie has a transverse and longitudinal compact structure, the unsprung mass and the whole bogie mass are reduced to the maximum extent, and the light weight purpose can be achieved remarkably.

Preferably, the axle is a solid axle.

Preferably, the axle disc is located longitudinally midway in the frame and laterally inboard of the wheelset.

Preferably, the splayed rubber pile device comprises a splayed rubber pile upper cover plate, a splayed rubber pile and a splayed rubber pile lower cover plate, wherein the splayed rubber pile is connected with the splayed rubber pile upper cover plate and the splayed rubber pile lower cover plate through vulcanization.

Preferably, the axle box body is of a split structure and comprises an upper axle box body and a lower axle box body, the upper axle box body and the splayed rubber pile lower cover plate are longitudinally and transversely positioned through the groove and the stop block, the bottom of the lower axle box body is provided with a slot, and the upper axle box body is fixedly connected with the lower axle box body through a bolt and a nut.

The splayed rubber stacking device is connected with the framework through a stop block of an upper cover plate of the splayed rubber stack, so that longitudinal and transverse positioning is realized.

Preferably, the left T-shaped beam is composed of a left side beam, an outer sleeve transition piece and an outer hinged sleeve device, the right T-shaped beam is composed of a right side beam, an inner sleeve transition piece and an inner hinged sleeve device, and the outer hinged sleeve device comprises: outer sleeve, outer sleeve end cover, little internal diameter bearing inner race holding ring, interior articulated sleeve device includes: the left T-shaped beam and the right T-shaped beam can rotate around the mutual free point head of the cross shaft through the small inner diameter bearing and the large inner diameter bearing.

Preferably, in the secondary suspension device, each spring group comprises a conical rubber spring and a laminated rubber spring, the conical rubber spring and the laminated rubber spring are arranged in series, the upper end of the conical rubber spring is connected with the vehicle body through a bolt and a nut, the lower end of the conical rubber spring is connected with the laminated rubber spring, the upper end of the laminated rubber spring is connected with the conical rubber spring, and the lower end of the laminated rubber spring is connected with the left T-shaped beam and the right T-shaped beam of the bogie frame.

Further preferably, the laminated rubber spring is formed by stacking a guide pillar, a plurality of vulcanized steel plates, a rubber layer and a positioning pin, the horizontal shearing rigidity of the laminated rubber spring can be adjusted by the number and rigidity of the rubber layers, the conical rubber spring is formed by a fixed seat, a first rubber layer, a first inner sleeve, a second rubber layer, a second inner sleeve, a third rubber layer and an outer sleeve, and the guide pillar is matched with the fixed seat to realize the series matching of the conical rubber spring and the laminated rubber spring.

Further preferably, two spring sets of the four spring sets are transversely symmetrically arranged on the left T-shaped beam and the right T-shaped beam of the bogie, but the arrangement is not limited to the mode.

Further preferably, the conical rubber spring only needs to consider vertical rigidity to adapt to empty and heavy vehicle deflection, and adopts larger consideration of horizontal rigidity.

Preferably, a transverse stop and a traction pull rod are arranged in the center of the concave end of one of the left T-shaped beam and the right T-shaped beam, the traction pull rod is a single traction pull rod and is longitudinally arranged, and two transverse shock absorbers are arranged at the end parts of the left side beam of the left T-shaped beam and the right side beam of the right T-shaped beam.

Preferably, the outer side of the lower concave section is connected with an extension beam, and the extension beam is connected with a secondary vertical shock absorber and an anti-snaking shock absorber.

In summary, compared with the prior art, the utility model has the beneficial effects that:

1. by adopting the bogie for the inner axle box of the railway vehicle, the splayed rubber pile device used by the primary suspension device can meet the primary vertical suspension rigidity and horizontal positioning rigidity, transmit the longitudinal force and the transverse force between the framework and the wheel pair and bear the vertical load on the framework;

2. the secondary suspension device is added, a combination mode of serially connecting the conical rubber spring and the laminated rubber spring is adopted, the appropriate vertical suspension rigidity and horizontal shearing rigidity of the truck body and the bogie can be provided, the structure is simple, meanwhile, the air spring can be replaced, the cost can be reduced on the premise of meeting the empty and heavy truck, original parts of the vertical suspension rigidity and the horizontal shearing rigidity in the secondary suspension device are separated, the vertical rigidity and the horizontal shearing rigidity are independently set, meanwhile, the arrangement mode of the spring group and the side beam can adapt to larger shearing deformation, a side rolling resistant torsion bar is not required to be installed on the high-speed truck bogie, and the cost of the bogie is reduced again;

3. the articulated framework structure is adopted, so that the sufficient shearing rigidity of the bogie can be ensured on the premise that the bogie is adaptive to the unsmooth line; the bogie has compact and reasonable structural arrangement and reliable performance, better meets the structural requirements of railway vehicles, has a transverse and longitudinal compact structure through the bogie primary suspension device and the bogie secondary suspension device, reduces the unsprung mass and the overall bogie mass to the maximum extent, can obviously achieve the aim of light weight, is favorable for improving the running stability and the stability of the vehicles, and is favorable for improving the running speed of the railway freight cars without losing the economy.

Drawings

FIG. 1 is a schematic structural view of an inner axlebox bogie for a railway vehicle according to an embodiment 1;

FIG. 2 is a top plan view of the construction of an axlebox bogie in a railway vehicle according to an embodiment 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

FIG. 5 is a structural plan view of a framework in embodiment 1;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;

FIG. 7 is a schematic structural view of a left-hand T-beam in example 1;

FIG. 8 is a schematic structural view of a right-hand T-beam in example 1;

FIG. 9 is a schematic structural view of a suspension system according to embodiment 1;

FIG. 10 is a sectional view showing the structure of a secondary spring assembly according to embodiment 1;

the figures are labeled: 1-wheel pair, 11-wheel, 12-axle, 13-axle disc, 2-frame, 21-left T-beam, 211-left side beam, 212-outer sleeve transition, 213-outer hinged sleeve arrangement, 214-outer sleeve, 215-outer sleeve end cap, 216-small inner diameter bearing outer race retaining ring, 217-undercut, 218-outrigger, 22-right T-beam, 221-right side beam, 222-inner sleeve transition, 223-inner hinged sleeve arrangement, 224-small inner diameter bearing, 225-large inner diameter bearing, 226-inner sleeve, 227-inner sleeve end cap, 228-small inner diameter bearing inner race retaining ring, 229-large inner diameter bearing inner race retaining ring, 31-bearing, 32-axle housing, 321-upper axle housing, 322-lower axle housing, 33-splayed rubber pile device, 331-splayed rubber pile upper cover plate, 332-splayed rubber pile, 333-splayed rubber pile lower cover plate, 4-shaft disc foundation brake device, 5-spring group, 51-conical rubber spring, 511-fixed seat, 512-first rubber layer, 513-first inner sleeve, 514-second rubber layer, 515-second inner sleeve, 516-third rubber layer, 517-outer sleeve, 52-laminated rubber spring, 521-guide column, 522-multilayer vulcanized steel plate, 523-rubber layer, 524-laminated rubber spring positioning pin, 61-transverse stopper, 62-traction pull rod, 63-secondary vertical shock absorber, 64-anti-snake motion shock absorber and 65-secondary transverse shock absorber.

Detailed Description

The utility model is described in further detail below with reference to the figures and the embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.

Example 1

Referring to fig. 1 to 10, an inner axlebox bogie for a railway vehicle according to the present invention comprises:

wheel sets 1, each wheel set 1 comprises two wheels 11, an axle 12 and two axle discs 13;

the framework 2 is arranged on the inner side of the wheel pair 1, the framework 2 is generally H-shaped and comprises a left T-shaped beam 21 and a right T-shaped beam 22, a concave section 217 is arranged in the middle of the left T-shaped beam 21 and the right T-shaped beam 22 and is of a fish-belly structure, and the left T-shaped beam 21 and the right T-shaped beam 22 can mutually rotate around a mutual free point of a transverse shaft;

the primary suspension device is arranged on the inner side of the wheel pair 1 and comprises a bearing 31, an axle box body 32 and a splayed rubber pile device 33;

the basic brake device comprises four shaft disc basic brake devices 4, the shaft disc basic brake devices 4 are matched with the shaft discs 13, and the shaft disc basic brake devices 4 are connected with the framework 2 by adopting three-point suspension;

the secondary suspension device comprises four spring groups 5, and every two spring groups 5 are transversely and symmetrically arranged on a left T-shaped beam 21 and a right T-shaped beam 22 of the framework 2.

Specifically, the example includes wheel pair 1, framework 2, foundation brake device, primary suspension device and secondary suspension device in this embodiment, every wheel pair 1 includes two wheels 11 that set up relatively, framework 2 and primary suspension device all locate wheel pair 1 is inboard, axletree 12 is solid component, axletree 13 is located the vertical middle part of framework 2, is located the horizontal inboard of wheel pair 1.

The splayed rubber pile device 33 comprises a splayed rubber pile upper cover plate 331, a splayed rubber pile 332 and a splayed rubber pile lower cover plate 333, wherein the splayed rubber pile 332 is fixedly connected with the splayed rubber pile upper cover plate 331 and the splayed rubber pile lower cover plate 333 through vulcanization. The splayed rubber stacking device 33 is connected with the framework 2 through a stop block on the splayed rubber stacking upper cover plate 331 to realize longitudinal and transverse positioning.

The shaft box body 32 is of a split structure and comprises an upper shaft box body 321 and a lower shaft box body 322, the upper shaft box body 321 and the splayed rubber pile lower cover plate 333 are longitudinally and transversely positioned through a groove and a stop block, a groove is formed in the bottom of the lower shaft box body 322, and the upper shaft box body 321 and the lower shaft box body 322 are fixedly connected through bolts and nuts.

Preferably, the left T-beam 21 is composed of a left side beam 211, an outer sleeve transition piece 212, an outer hinged sleeve device 213, the right T-beam 22 is composed of a right side beam 221, an inner sleeve transition piece 222, an inner hinged sleeve device 223, a small inner diameter bearing 224, a large inner diameter bearing 225, the outer hinged sleeve device 213 comprises: an outer sleeve 214, an outer sleeve end cap 215, a small inner diameter bearing outer race retaining ring 216, said inner hinge sleeve assembly 223 comprising: an inner sleeve 226, an inner sleeve end cap 227, a small inner diameter bearing inner diameter inner ring positioning ring 228, a large inner diameter bearing inner diameter inner ring positioning ring 229, the left T-shaped beam 21 and the right T-shaped beam 22 can realize mutual free point-head rotation around a transverse shaft through the small inner diameter bearing 224 and the large inner diameter bearing 225, the outer hinged sleeve means 213 of the left T-beam 21 is welded to the left side beam 211 via the outer hinged transition piece 212, the inner hinged sleeve arrangement 223 of the right T-beam 22 is welded to the right side beam 221 via the inner hinged transition piece 222, the end of the outer sleeve transition piece 212 that connects to the outer hinge sleeve means 213 is cylindrical, the end connected with the left side beam 211 is quadrangular, the end of the inner sleeve transition piece 222 connected with the inner hinge sleeve device 223 is cylindrical, the end connected to the right side beam 221 is quadrilateral, and the shape of the outer sleeve transition piece 212 is identical to the shape of the inner sleeve transition piece 222.

In the secondary suspension device, each spring group 5 comprises a conical rubber spring 51 and a laminated rubber spring 52, the conical rubber spring 51 and the laminated rubber spring 52 are arranged in series, the upper end of the conical rubber spring 51 is connected with the vehicle body through a bolt and a nut, the lower end of the conical rubber spring is connected with the laminated rubber spring 52, the upper end of the laminated rubber spring 52 is connected with the conical rubber spring 51, the lower end of the laminated rubber spring 52 is connected with the framework 2 of the bogie, the laminated rubber spring 52 is formed by stacking a guide pillar 521, a plurality of vulcanized steel plates 522, a rubber layer 523 and a laminated rubber spring positioning pin 524, the conical rubber spring 51 is formed by a fixed seat 511, a first rubber layer 512, a first inner sleeve 513, a second rubber layer 514, a second inner sleeve 515, a third rubber layer 516 and an outer sleeve 517, the guide pillar 521 is matched with the fixed seat 511 to realize the series matching of the conical rubber spring 51 and the laminated rubber spring 52, two spring sets 5 in the four spring sets 5 are transversely and symmetrically arranged on the framework 2 of the bogie.

The center of the top end of the external hinged sleeve device 213 is provided with a transverse stop 61 and a traction pull rod 62, and the traction pull rod 62 is a single traction pull rod and is longitudinally arranged.

The outer side of the concave end 217 of the left side beam 211 is connected with an extending beam 218, and the extending beam 218 is connected with a secondary vertical shock absorber 63 and an anti-snaking shock absorber 64.

Two transverse shock absorbers 65 are further mounted at the end portions of the left side beam 211 and the right side beam 221.

By adopting the bogie, the horizontal positioning rigidity and the vertical suspension rigidity between the framework 2 and the wheel pair 1 can be met by adopting the primary suspension device of the splayed rubber stacking device, and meanwhile, the splayed rubber stacking device 33 is low in cost, economical and practical and suitable for being used by a quick truck; the secondary suspension device adopting the combined mode of serially connecting the conical rubber spring 51 and the laminated rubber spring 52 can provide proper vertical suspension stiffness and horizontal shear stiffness for a truck body and a bogie, meets the vertical deflection requirement of the rapid truck empty and heavy truck, does not need to be provided with an anti-side-rolling torsion bar in the installation mode, and has simple structure and low cost; by adopting the hinged framework structure, the sufficient shearing rigidity of the bogie can be ensured on the premise that the bogie is adaptive to the unsmooth line; by adopting the arrangement mode of arranging the bearings 32 in a built-in manner, the frame 2 is supported at the inner side, the length of the axle 12 is effectively shortened, the unsprung mass and the dead weight of the bogie are reduced, the curve passing performance is improved, and the hinged frame 2 can realize that the bogie has no diamond deformation and zero torsional rigidity and simultaneously has excellent running stability and curve passing performance; through the primary suspension device and the secondary suspension device of the bogie, the bogie has a transverse and longitudinal compact structure, the unsprung mass and the whole bogie mass are reduced to the maximum extent, the aim of light weight can be obviously achieved, the bogie can be widely applied to a rapid wagon bogie structure, and the running speed of a railway wagon is effectively increased to 160 km/h.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. A railway vehicle inner axlebox bogie comprising:

the wheel sets (1), each wheel set (1) comprises two wheels (11), an axle (12) and two axle discs (13);

the frame (2) is arranged on the inner side of the wheel pair (1), the frame (2) is overall H-shaped and comprises a left T-shaped beam (21) and a right T-shaped beam (22), a concave section (217) is arranged in the middle of the left T-shaped beam (21) and the right T-shaped beam (22) and is of a fish belly structure, and the left T-shaped beam (21) and the right T-shaped beam (22) can mutually rotate around the mutual free point head of a transverse shaft;

the primary suspension device is arranged on the inner side of the wheel pair (1) and comprises a bearing (31), a shaft box body (32) and a splayed rubber stacking device (33);

the basic brake device comprises four shaft disc basic brake devices (4), the shaft disc basic brake devices (4) are matched with the shaft disc (13), and the shaft disc basic brake devices (4) are connected with the framework (2) by adopting three-point suspension;

the secondary suspension device comprises four spring groups (5), and the spring groups (5) are transversely and symmetrically arranged on a left T-shaped beam (21) and a right T-shaped beam (22) of the framework (2).

2. The inner axle box bogie of the railway vehicle according to claim 1, wherein in the primary suspension device, the splayed rubber pile device (33) comprises a splayed rubber pile upper cover plate (331), a splayed rubber pile (332) and a splayed rubber pile lower cover plate (333), the splayed rubber pile (332) is fixedly connected with the splayed rubber pile upper cover plate (331) and the splayed rubber pile lower cover plate (333) through vulcanization, the axle box body (32) is of a split structure and comprises an upper axle box body (321) and a lower axle box body (322), the upper axle box body (321) and the splayed rubber pile lower cover plate (333) realize longitudinal and transverse positioning through a groove and a stop block, a slot is formed in the bottom of the lower axle box body (322), and the upper axle box body (321) and the lower axle box body (322) are fixedly connected through a bolt and a nut.

3. An axlebox bogie as claimed in claim 1 wherein each spring set (5) comprises a conical rubber spring (51) and a laminated rubber spring (52), wherein the conical rubber spring (51) and the laminated rubber spring (52) are arranged in series, the conical rubber spring (51) is connected with the car body at the upper end and with the laminated rubber spring (52) at the lower end, the laminated rubber spring (52) is connected with the conical rubber spring (51) at the upper end and with the bogie frame (2) at the lower end, the laminated rubber spring (52) is formed by stacking a guide pillar (521), a plurality of vulcanized steel plates (522), a rubber layer (523) and a laminated rubber spring positioning pin (524), and the conical rubber spring (51) is formed by a fixed base (511), a first rubber layer (512), a first inner sleeve (513), The steering bogie comprises a second rubber layer (514), a second inner sleeve (515), a third rubber layer (516) and an outer sleeve (517), the guide column (521) is matched with the fixed seat (511) to realize the series connection matching of the conical rubber spring (51) and the laminated rubber spring (52), and every two spring sets (5) in the four spring sets (5) are transversely and symmetrically arranged on a frame (2) of the steering bogie.

4. A railway vehicle axlebox bogie according to claim 1, characterized in that the left T-beam (21) consists of a left side beam (211), an outer sleeve transition (212), an outer articulation sleeve arrangement (213), and the right T-beam (22) consists of a right side beam (221), an inner sleeve transition (222), an inner articulation sleeve arrangement (223), a small inner diameter bearing (224), a large inner diameter bearing (225), the outer articulation sleeve arrangement (213) comprising: an outer sleeve (214), an outer sleeve end cap (215), a small inner diameter bearing outer race retaining ring (216), said inner articulating sleeve assembly (223) comprising: the inner sleeve type T-shaped beam bearing comprises an inner sleeve (226), an inner sleeve end cover (227), a small inner diameter bearing inner diameter inner ring positioning ring (228) and a large inner diameter bearing inner diameter inner ring positioning ring (229), wherein the left T-shaped beam (21) and the right T-shaped beam (22) can realize free point rotation around a transverse shaft through the small inner diameter bearing (224) and the large inner diameter bearing (225), an outer hinged sleeve device (213) of the left T-shaped beam (21) is in welded connection with a left side beam (211) through an outer sleeve transition piece (212), an inner hinged sleeve device (223) of the right T-shaped beam (22) is in welded connection with a right side beam (221) through the inner sleeve transition piece (222), one end of the outer sleeve transition piece (212) connected with the outer hinged sleeve device (213) is cylindrical, the end of the outer sleeve transition piece connected with the left side beam (211) is quadrilateral, and one end of the inner sleeve transition piece (222) connected with the inner hinged sleeve device (223) is cylindrical, the connecting end of the outer sleeve transition piece (212) and the right side beam (221) is quadrilateral, and the shape of the outer sleeve transition piece is consistent with that of the inner sleeve transition piece (222).

5. A railway vehicle inner axlebox bogie according to claim 4, characterized in that the outer articulation sleeve arrangement (213) is provided with a transverse stop (61) and a traction tie (62) at the top end centre, the traction tie (62) being a single tie arranged longitudinally.

6. An inner axlebox bogie for railway vehicles according to claim 1, characterised in that the outer side of said undercut section (217) is connected to an outrigger (218), said outrigger (218) being connected to secondary vertical shock absorbers (63) and anti-hunting shock absorbers (64), said left (21) and right (22) T-beams being provided at their ends with secondary transverse shock absorbers (65).

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