CN214985365U - Steering frame - Google Patents

Abstract

The invention discloses a bogie which comprises a hinge mechanism and two side beams which extend along the longitudinal direction and are spaced in the transverse direction, wherein two cross beams which are spaced in the longitudinal direction are connected between the two side beams; the crossbeam includes the interlude with be located the marginal section of interlude both sides, two the interlude is located transversely and is connected with the longeron between the tip with one side, hinge mechanisms installs in two the longeron, the at least part of marginal section is from transversely keeping away from the direction of interlude inwards inclines gradually. By adopting the structure, the longitudinal distance between the two middle sections is relatively large, a space can be vacated for the installation of the hinge mechanism, at least parts of the two edge sections can be gradually inclined inwards along the direction which is far away from the middle sections transversely, and a space can be vacated for the brake mechanism, so that the axle distance of the bogie is favorably reduced, the small curve passing capacity is enhanced, the wheel rim abrasion can be reduced, the turning period is prolonged, and the cost is saved.

Description

Steering frame

Technical Field

The invention relates to the technical field of railway vehicles, in particular to a bogie.

Background

Generally, the articulated bogie needs to bear two car bodies, so that the wheelbase of the articulated bogie is larger and can reach 2.9 meters at most, the small curve passing capacity of the articulated bogie is poorer, the wheel rim is worn quickly, and the direct and indirect losses of car shutdown and the like caused by turning and replacing the wheels are larger.

Disclosure of Invention

The invention aims to provide a bogie, which has a relatively small wheelbase, can improve the passing capacity of a small curve, further can reduce the abrasion of a wheel flange, prolongs the turning period and saves the cost.

In order to solve the technical problem, the invention provides a bogie which comprises a hinge mechanism and two side beams which extend along the longitudinal direction and are spaced from each other in the transverse direction, wherein two cross beams which are spaced from each other in the longitudinal direction are connected between the two side beams; the crossbeam includes the interlude with be located the marginal section of interlude both sides, two the interlude is located transversely and is connected with the longeron between the tip with one side, hinge mechanisms installs in two the longeron, the at least part of marginal section is from transversely keeping away from the direction of interlude inwards inclines gradually.

By adopting the structure, the longitudinal distance between the two middle sections is relatively large, a space can be vacated for the installation of the hinge mechanism, at least parts of the two edge sections can be gradually inclined inwards along the direction which is far away from the middle sections transversely, and a space can be vacated for the brake mechanism, so that the axle distance of the bogie is favorably reduced, the small curve passing capacity is enhanced, the wheel rim abrasion can be reduced, the turning period is prolonged, and the cost is saved.

Optionally, a vertical dimension of a junction of the middle section and the edge section is smaller than a vertical dimension of a junction of the side beam and the edge section, and at least a partial vertical dimension of the edge section is gradually reduced along a direction away from the middle section in the transverse direction.

Optionally, the edge section is a box beam structure and the middle section is a round tube beam structure.

Optionally, each of the side beams is provided with two sets of air spring assemblies arranged at intervals in the longitudinal direction, each set of air spring assemblies comprises at least one air spring, and each air spring is arranged in series.

Optionally, each air spring is provided with a damping hole, and the bogie is not provided with a vertical shock absorber.

Optionally, the hinge mechanism includes a first hinge seat and a second hinge seat, the first hinge seat includes two support bodies arranged at intervals in the transverse direction, the support bodies are provided with support grooves with upward openings, at least partial longitudinal dimension of the support grooves is gradually reduced from top to bottom, the second hinge seat is used for installing the mandrel, the axial two end portions of the mandrel form support portions, at least partial longitudinal dimension of the support portions is gradually reduced from top to bottom, and in an assembled state, at least partial longitudinal wall surfaces of the portions of the support portions, the longitudinal dimension of which is gradually reduced, can be in contact with at least partial groove side walls of the portions, the longitudinal dimension of which is gradually reduced, of the support grooves.

Optionally, the longitudinal dimension of at least the lower end of the support portion is gradually reduced from top to bottom, the support portion comprises two opposite wedge-shaped surfaces, the two wedge-shaped surfaces are connected through a bottom surface, and an edge is formed between each wedge-shaped surface and the bottom surface; the groove side wall of the supporting groove comprises a first side wall surface and a second side wall surface, wherein the inclination of the second side wall surface is consistent with that of the wedge surface, the first side wall surface is located below the second side wall surface, the first side wall surface and the second side wall surface are in transition through the arc surface, and the wedge surface is in contact with the second side wall surface and protrudes downwards from the second side wall surface, so that the ridge is arranged in a suspension mode.

Optionally, the groove bottom wall of the supporting groove and the first side wall surface are in transition through an arc surface.

Optionally, the vertical one side of first articulated seat is equipped with the mounting panel for link to each other with the automobile body, keep away from on the supporter is vertical the one side of mounting panel is equipped with the boss, at least part of boss is located the top of the tank bottom wall of support groove.

Optionally, the device further comprises a pressing block, wherein the pressing block is connected with the supporting body and used for pressing the mandrel.

Optionally, a single traction pull rod is further connected to the first hinge base.

Optionally, the vehicle body further comprises an anti-rolling torsion bar device, which comprises a torsion bar, a torsion arm and a connecting rod, wherein bearing seats are arranged at two ends of the torsion bar, the bearing seats are mounted at the bottom of the edge section, and the connecting rod is located on the transverse inner side of the side beam.

Optionally, the bearing block is parallelogram-shaped, and at least part of the connecting rod is bent to avoid the edge section.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a truck according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a view showing a connection structure of side members, cross members and longitudinal members;

FIG. 4 is a schematic structural view of the hinge mechanism;

FIG. 5 is a partially enlarged view of the abutting joint of the support portion and the support groove;

FIG. 6 is a schematic structural view of the first hinge base;

FIG. 7 is a front view of FIG. 6;

fig. 8 is a partial structural schematic view of a bogie provided by the present invention from a bottom view.

The reference numerals in fig. 1-8 are illustrated as follows:

1, a hinge mechanism, 11, a first hinge seat, 111 supports, 111a support grooves, 111a-1 first side wall surfaces, 111a-2 second side wall surfaces, 111a-3 groove bottom walls, 112 mounting plates, 113 reinforcing blocks, 114 single-traction pull rods, 12 second hinge seats, 121 mandrels, 121a supports, 121a-1 wedge surfaces, 121a-2 bottom surfaces, 121a-3 ribs and 122 pressing blocks;

2 side member, 21 air spring;

3 cross beam, 31 middle section, 32 edge section;

4 longitudinal beams;

5 anti-rolling torsion bar device, 51 torsion bar, 511 bearing seat, 52 torsion arm and 53 connecting bar;

6 wheel pairs;

7 a braking mechanism.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

The terms "first," "second," and the like, herein are used for convenience in describing two or more structures or components that are identical or similar in structure and/or function and do not denote any particular limitation in order and/or importance.

Herein, the running direction of the rail train is taken as a longitudinal direction; in the running plane of the rail train, the direction vertical to the longitudinal direction is a transverse direction; the direction perpendicular to the running plane of the rail train is vertical, and the vertical direction also refers to the up-down direction, wherein the direction relatively close to the running plane is downward, and the direction relatively far away from the running plane is upward.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an embodiment of a bogie according to the present invention, fig. 2 is a top view of fig. 1, and fig. 3 is a structural view of a connection structure of a side beam, a cross beam, and a longitudinal beam.

As shown in fig. 1-3, the present invention provides a bogie for connecting a wheel pair 6 with a vehicle body, comprising an articulated mechanism 1 and two side beams 2 extending along a longitudinal direction and spaced apart from each other in a transverse direction, two cross beams 3 spaced apart from each other in the longitudinal direction are connected between the two side beams 2, the cross beam 3 comprises a middle section 31 and edge sections 32 located at two sides of the middle section 31, longitudinal beams 4 are connected between end portions of the two middle sections 31 located at the same transverse side, the articulated mechanism 1 is mounted on the two longitudinal beams 4, and at least part of the edge sections 32 is gradually inclined inwards from the direction far away from the middle section 31 in the transverse direction.

"inner" as used herein refers to a location relatively close to the longitudinal centerline of the truck, which is a line extending transversely across the longitudinal center.

By adopting the structure, the longitudinal distance between the two middle sections 31 is relatively large, so that a space can be vacated for installing the hinge mechanism 1, at least parts of the two edge sections 32 can be gradually inclined inwards along the direction which is far away from the middle sections 31 transversely, and a space can be vacated for the brake mechanism 7, so that the axle distance of the bogie is favorably reduced, the small curve passing capacity is enhanced, the wheel rim abrasion can be reduced, the turning repair period is prolonged, and the cost is saved.

It should be noted that the transverse dimension of the edge section 32, the transverse dimension of the inclined portion of the edge section 32, and the included angle between the inclined portion of the edge section 32 and the transverse direction are not limited in the embodiments of the present invention, and in the specific implementation, a person skilled in the art can select the included angle according to actual needs as long as the requirements of use can be met.

Generally, the side members 2 are provided with air spring assemblies for supporting the vehicle body, and in order to ensure sufficient bearing performance, the side members 2 are large in vertical dimension, while the cross members 3 can be small in vertical dimension, so as to reduce the weight of the bogie.

In this manner, the vertical dimension of the edge sections 32 connecting the intermediate section 31 and the side members 2 can be varied to accommodate differences in the vertical dimensions of the intermediate section 31 and the side members 2. In detail, the vertical dimension of the junction between the intermediate section 31 and the edge section 32 may be smaller than the vertical dimension of the junction between the side member 2 and the edge section 32, and at least part of the vertical dimension of the edge section 32 may be tapered in a direction laterally away from the intermediate section 31.

Based on such dimensional requirements, the edge segments 32 may be box beam structures for ease of machining, in which case the top and bottom plates of the inclined portions of the edge segments 32 may each generally assume a parallelogram shape; the middle section 31 can be of a round tubular beam structure, the middle section 31 can be arranged in an equal diameter mode, and the round tubular beam is adopted to be more convenient to obtain.

It should be understood that the above-mentioned option that the edge section 32 adopts a box beam structure and the middle section 31 adopts a round tube beam structure is only an exemplary illustration of the embodiment of the present invention, and in the specific implementation, the edge section 32 and the middle section 31 may also adopt other forms of beam body structures as long as the function implementation is not affected.

As mentioned previously, the side members 2 will typically be provided with a spring assembly for connection to the vehicle body. For the bogie which needs to connect two longitudinally adjacent vehicle bodies, each side beam 2 can be provided with two groups of hollow spring assemblies which are arranged at intervals along the longitudinal direction, and each group of hollow spring assemblies is used for connecting one vehicle body; each set of air spring assemblies may include at least one air spring 21 and, in use, each air spring 21 may be arranged in series.

Therefore, the air in each air spring 21 can flow mutually, the internal pressure of each air spring 21 can be kept consistent, in particular practice, the inflation and the exhaust of each air spring 21 can be controlled by only using one height valve, and the synchronous lifting of the vehicle bodies on two sides can be realized, so that the control operation is simplified; meanwhile, vertical additional loads inside the hinge mechanism 1 caused by different numbers of people on the vehicle bodies on the two sides, namely different loads, can be reduced, and the improvement of the load state of the hinge mechanism 1 is facilitated.

Each air spring 21 may be provided with a damping hole (not shown) to function as a vertical shock absorber. Therefore, the bogie provided by the invention can be provided without a vertical shock absorber, so that the space of the bogie is saved, and the manufacturing cost is further reduced.

It should be noted that, it is also possible to isolate each air spring 21, and then configure a height valve for each air spring 21 individually to control air charging and discharging; likewise, the air spring 21 is not provided with a damping hole, and a solution of providing a vertical shock absorber is also possible.

Referring to fig. 4 to 7, fig. 4 is a schematic structural view of the hinge mechanism, fig. 5 is a partially enlarged view of a butt joint between the support portion and the support groove, fig. 6 is a schematic structural view of the first hinge seat, and fig. 7 is a front view of fig. 6.

Further, as shown in fig. 4, the hinge mechanism 1 may include a first hinge seat 11 and a second hinge seat 12, the first hinge seat 11 may include two support bodies 111 arranged at intervals in the transverse direction, the support bodies 111 may be provided with support grooves 111a having upward openings, at least partial longitudinal dimensions of the support grooves 111a may be gradually reduced from top to bottom, the second hinge seat 12 is used for mounting the spindle 121, support portions 121a are formed at two axial end portions of the spindle 121, and at least partial longitudinal dimensions of the support portions 121a may be gradually reduced from top to bottom. In the assembled state, at least a part of the longitudinal wall surface of the portion where the longitudinal dimension of the support portion 121a is gradually reduced can be in contact with at least a part of the groove side wall of the portion where the longitudinal dimension of the support groove 111a is gradually reduced.

Different from the matching scheme of the conventional U-shaped groove and the mandrel with the circular cross section, the scheme that the supporting part 121a and the supporting groove 111a are at least partially arranged in a tapered manner from top to bottom is matched is more favorable for ensuring the reliability of vertical positioning of the mandrel 121, the side walls of the supporting part 121a and the supporting groove 111a are in surface-to-surface contact, the stress area is larger, stress concentration can be reduced, and the service life of the hinge mechanism 1 is prolonged.

Further, as shown in fig. 5, at least the lower end of the supporting portion 121a may have a longitudinal dimension gradually decreasing from top to bottom, and may include two opposite wedge-shaped surfaces 121a-1, the two wedge-shaped surfaces 121a-1 may be connected by a bottom surface 121a-2, and an edge 121a-3 may be formed between the wedge-shaped surface 121a-1 and the bottom surface 121 a-2; the groove sidewall of the support groove 111a may include a first sidewall 111a-1 and a second sidewall 111a-2 having a slope corresponding to that of the wedge-shaped surface 121a-1, the first sidewall 111a-1 may be located below the second sidewall 111a-2, the first sidewall 111a-1 and the second sidewall 111a-2 may transition through an arc, and the wedge-shaped surface 121a-1 may contact the second sidewall 111a-2 and protrude downward from the second sidewall 111a-2, so that the rib 121a-3 is suspended. Thus, line contact between the supporting portion 121a and the groove sidewall of the supporting groove 111a can be avoided, so as to better avoid the phenomenon of stress concentration.

The bottom wall 111a-3 of the supporting groove 111a and the first side wall 111a-1 may also be transited through a curved surface to ensure a smooth transition between the bottom wall 111a-3 and the side wall of the groove, thereby avoiding the generation of stress weak points.

With continued reference to fig. 4, the first and second hinge seats 11 and 12 may be provided with a mounting plate 112 at one longitudinal side, and the mounting plates 112 of the two hinge seats may be arranged opposite to each other in the longitudinal direction for connecting to two vehicle bodies respectively.

With reference to fig. 6 and 7, for the first hinge base 11, a side of the supporting body 111 longitudinally away from the mounting plate 112 may be further provided with a reinforcing block 113, and at least a part of the reinforcing block 113 may be located above a groove bottom wall of the supporting groove 111 a. In this way, the cross-sectional area of the first hinge seat 11 at the root of the support groove 111a can be increased, thereby increasing the bending and shear section modulus, and the support body 111 can have sufficient load-bearing capacity when longitudinal traction and impact loads are transmitted.

The bogie provided by the present invention may further include a pressing block 122, and the pressing block 122 may be connected to the support body 111 for pressing the mandrel 121. With reference to fig. 4, the pressing block 122 may be provided with three through holes, two through holes on two longitudinal sides are used for assembling the connecting piece and connecting with the support 111, and the middle through hole is a process hole (the corresponding position of the mandrel 121 is also provided with a vertical hole) and is used for cooperating with the disassembling tool to separate the mandrel 121 and the support 111 in structure, so as to solve the problem of difficult disassembling caused by metal inlaying, deformation caused by interference fit, metal corrosion and the like.

The two longitudinal side ends of the pressing block 122 are further provided with downwardly extending hooks, which can be clamped with the two side walls of the supporting groove 111a, so as to improve the overall rigidity and bearing performance.

A single traction rod 114 can also be associated with the first articulated seat 11 for transmitting longitudinal traction forces. Compared with a double-pull-rod structure, the single-pull rod 114 is simple in structure, light in weight, convenient to maintain and lower in cost. Of course, in specific implementations, a double pull rod structure is also feasible.

Referring to fig. 8, fig. 8 is a partial structural schematic view of a bogie provided in the present invention from a bottom view.

The bogie provided by the present invention may further include an anti-roll torsion bar device 5, which may include a torsion bar 51, a torsion arm 52 and a connecting rod 53, wherein two ends of the torsion bar 51 may be provided with bearing seats 511, and the connection structure of the torsion bar 51, the torsion arm 52, the connecting rod 53 and the bearing seats 511 is not limited herein, and in the specific implementation, those skilled in the art may refer to the prior art.

In particular, in the embodiment of the present invention, as shown in fig. 8, the bearing seat 511 may be installed at the bottom of the edge segment 32 to facilitate the disassembly and maintenance; the link 53 may be located laterally inward of the side member 2 to reduce the lateral dimension of the link 53 and effectively save the bogie space, which in turn may reduce the inter-spring mass of the bogie.

Due to the inclined portion of the edge segment 32, the bearing seat 511 may assume a parallelogram shape to fit the bottom plate of the edge segment 32. At least a part of the connecting rod 53 may be bent to avoid the inclined design of the edge section 32.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims (13)

1. The utility model provides a bogie, includes hinge mechanisms (1) and along longitudinal extension, just in horizontal looks spaced both sides roof beam (2), two be connected with between curb girder (2) in vertical looks spaced two crossbeams (3), characterized in that, crossbeam (3) include interlude (31) and lie in marginal section (32) of interlude (31) both sides, two interlude (31) lie in and transversely be connected with longeron (4) between the tip with one side, hinge mechanisms (1) are installed in two longeron (4), at least part of marginal section (32) is kept away from on horizontal the direction of interlude (31) is inwards inclined gradually.

2. A bogie as claimed in claim 1, characterised in that the vertical dimension of the junction of the intermediate section (31) with the edge section (32) is smaller than the vertical dimension of the junction of the side beam (2) with the edge section (32), at least part of the vertical dimension of the edge section (32) tapering in a direction transversely away from the intermediate section (31).

3. A bogie as claimed in claim 2 in which the edge section (32) is of box beam construction and the intermediate section (31) is of round tube beam construction.

4. A bogie as claimed in claim 1, wherein each of said side beams (2) is provided with two sets of air spring assemblies disposed at longitudinally spaced intervals, each of said sets of air spring assemblies including at least one air spring (21), each of said air springs (21) being disposed in series.

5. A bogie as claimed in claim 4, characterised in that each air spring (21) is provided with a damping orifice and the bogie is provided without a vertical shock absorber.

6. Truck according to any of claims 1 to 5, characterized in that said articulation mechanism (1) comprises a first articulation seat (11) and a second articulation seat (12), the first hinging seat (11) comprises two supporting bodies (111) which are arranged at intervals in the transverse direction, the supporting body (111) is provided with a supporting groove (111a) with an upward opening, at least partial longitudinal dimension of the supporting groove (111a) is gradually reduced from top to bottom, the second hinge seat (12) is used for installing a mandrel (121), two axial ends of the mandrel (121) form supporting parts (121a), at least part of the longitudinal dimension of the support part (121a) is gradually reduced from top to bottom, and in the assembled state, at least a part of the longitudinal wall surface of the portion where the longitudinal dimension of the support portion (121a) is gradually reduced can be in contact with at least a part of the groove side wall of the portion where the longitudinal dimension of the support groove (111a) is gradually reduced.

7. The bogie according to claim 6, wherein at least the lower end of the support part (121a) has a longitudinal dimension which is gradually reduced from top to bottom and comprises two opposite wedge faces (121a-1), the two wedge faces (121a-1) are connected by a bottom face (121a-2), and a rib (121a-3) is formed between the wedge face (121a-1) and the bottom face (121 a-2);

the groove side wall of the support groove (111a) comprises a first side wall surface (111a-1) and a second side wall surface (111a-2) with the gradient consistent with that of the wedge-shaped surface (121a-1), the first side wall surface (111a-1) is positioned below the second side wall surface (111a-2), the first side wall surface (111a-1) and the second side wall surface (111a-2) are in transition through an arc surface, and the wedge-shaped surface (121a-1) is in contact with the second side wall surface (111a-2) and protrudes downwards from the second side wall surface (111a-2) so as to enable the ridge (121a-3) to be arranged in a suspended mode.

8. The bogie according to claim 7, wherein the bottom wall (111a-3) of the support groove (111a) transitions with the first side wall surface (111a-1) by an arc surface.

9. The bogie according to claim 6, wherein the first hinge seat (11) is provided at a longitudinal side thereof with a mounting plate (112) for attachment to a vehicle body, and the support body (111) is provided at a side thereof longitudinally remote from the mounting plate (112) with a reinforcing block (113), and at least a part of the reinforcing block (113) is located above a bottom wall (111a-3) of the support groove (111 a).

10. The bogie according to claim 6, further comprising a pressing block (122), wherein the pressing block (122) is connected with the support body (111) and is used for pressing the mandrel (121).

11. A bogie as claimed in claim 6 in which a single drag link (114) is also attached to the first articulation seat (11).

12. A bogie according to any one of claims 1 to 5 and further comprising an anti-roll torsion bar arrangement (5) comprising a torsion bar (51), a torsion arm (52) and a link (53), said torsion bar (51) being provided at both ends with bearing seats (511), said bearing seats (511) being mounted to the bottom of said edge section (32), said link (53) being located laterally inwardly of said side beams (2).

13. A bogie as claimed in claim 12, characterised in that the bearing blocks (511) are parallelogram-shaped, at least part of the connecting rods (53) being bent over to clear the edge sections (32).

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