CN117601917A - Variable gauge bogie wheel set - Google Patents

Abstract

The invention discloses a variable-track-distance bogie wheel set, which relates to the technical field of railway locomotive and vehicle bogies and comprises an axle, a wheel assembly, a bracket assembly, a wheel disc assembly, a positioning device and a locking mechanism, wherein the wheel assembly and the bracket assembly are respectively sleeved on a spline and a bracket seat of the axle, the wheel disc assembly is movably sleeved on the periphery of a bracket part of the bracket, a transition disc of the wheel disc assembly is connected with a sliding block and a guide rod, the bracket is connected with the positioning device and the guide rod, the transition disc moves to drive the sliding block and the guide rod to move, the positioning device contacted with the sliding block is further moved, the relative position of the guide rod and the guide rod sleeved outside a connecting rod is changed, and the clamping position of the positioning device on the bracket and a connecting plate connected with the wheels is changed, so that the distance between the two wheels is changed, the unreasonable design of the wheel set system structure is avoided, and the running stability of the whole vehicle is realized.

Description

Variable gauge bogie wheel set

Technical Field

The application relates to the technical field of railway locomotive bogies, in particular to a variable track gauge bogie wheel set.

Background

At present, railway gauges in different countries and regions in the world are different, and even inside certain countries and regions, multiple gauges coexist. When the same train needs to run on the railway lines with different gauges in a crossing way, three processing modes exist at present: the first is transit, i.e., transferring containers/passengers from one gauge train to another; the second is to replace the bogie, i.e. one gauge bogie to another gauge bogie; the third is to use a variable gauge bogie, i.e., the bogie can be actively or passively adjusted to accommodate different gauges as it straddles different gauge lines. The former two modes have low efficiency, long operation period and high cost, and the third mode is reverse.

The change of the track gauge is reflected on the wheel set, namely the axial position of the wheels on the axle is required to be changed, and the core requirement of the track gauge-changing bogie is that the wheels can be unlocked and locked, the wheels can be axially and accurately moved to the preset position on the axle after being unlocked, and the wheels can be reliably locked after being moved. At present, a plurality of rail-changing technologies exist, but the problem of unreasonable structural design exists, for example, SUW2000 rail-changing wheel sets are developed by Polish, and the rail-changing can be realized without unloading by adopting an integral wheel structure and shaft disc braking, but without power; the japanese developed a-type gauge trucks, which use in-wheel motors, independently rotating wheel structures, are not suitable for high speeds.

Therefore, how to avoid the problem of unreasonable structural design of the wheel set system is a technical problem that needs to be solved by those skilled in the art at present.

Disclosure of Invention

The utility model aims at providing a become gauge bogie wheelset, can avoid the unreasonable problem of wheelset system structural design.

To achieve the above object, the present invention provides a variable gauge bogie wheel set, comprising:

the axle is of a rod-shaped structure, and a driving device seat, a bracket seat and a spline are sequentially arranged in the extending direction of the middle part of the axle to the end part;

the wheel assembly comprises wheels, a connecting plate and an axle box, wherein the wheels are provided with mounting grooves and mounting holes for the connecting plate to mount, the connecting plate is provided with mounting seats connected with the wheels, the mounting seats are provided with a first positioning groove and a second positioning groove, the wheels are movably connected with splines of an axle, and the axle boxes are respectively connected with the end parts of the axle;

the support assembly comprises a support and a sliding block, wherein the support is provided with a support piece, a support hole, a positioning device groove and a guide cylinder seat, the cross section of the support piece along the extending direction of the axle is circular, the support hole is a through hole penetrating through the support piece along the extending direction of the axle, the support is sleeved on the axle through the support piece, the positioning device groove and the guide cylinder seat are alternately positioned on the peripheral surface of the support piece, and the sliding block is movably penetrated in a matched hole on the positioning device groove;

the wheel disc assembly is connected to the outer periphery of the support piece and comprises a transition disc and a friction disc, the transition disc is cake-shaped, a sliding block mounting hole, a guide rod mounting hole, a friction disc mounting hole and a first mounting hole are sequentially formed in the transition disc from inside to outside along the diameter direction of the round surface, and the friction disc is provided with a mounting through hole and is connected to the friction disc mounting hole through the mounting through hole;

the positioning device comprises a positioning pin, a positioning spring and a positioning sliding block, the positioning device is arranged in a positioning device groove, the positioning pin is connected with the positioning sliding block, the positioning sliding block is in contact with the sliding block, and the sliding block can push the positioning pin to be clamped with the first positioning groove or the second positioning groove;

the locking mechanism comprises a guide rod, a guide cylinder and a spring, wherein the guide rod is connected to the transition disc, the guide cylinder is connected to the guide cylinder seat, and the guide rod can slide in the guide cylinder;

preferably, the wheel further comprises: the sliding block can move along the slideway; the spline channel is positioned at the joint of the wheel and the axle and is used for being matched with the spline; the second mounting holes are uniformly distributed along the circumferential direction of the wheel; the mounting groove penetrates through the wheel along the extending direction of the axle and is used for being clamped with a mounting seat of the connecting plate; the mounting hole is used for fixing the connecting plate.

Preferably, the variable track bogie wheel set further comprises a first sealing device and a second sealing device, wherein two ends of the first sealing device are respectively connected with the first mounting hole and the second mounting hole, two ends of the second sealing device are respectively connected with the second mounting hole and the axle box, and the first sealing device and the second sealing device are used for preventing impurities and foreign matters from entering the positioning device and the locking mechanism in the operation process.

Preferably, the positioning pin is provided with a positioning boss, the positioning boss can be clamped with the first positioning groove or the second positioning groove, the positioning sliding block is provided with a wedge-shaped sliding surface, and the wedge-shaped sliding surface is attached to the sliding block.

Preferably, the slider includes:

the cylindrical boss is internally provided with a boss hole and is arranged in the sliding block mounting hole through the boss hole;

the sliding piece is connected with the cylindrical boss, an inclined sliding surface is arranged at the end part of the sliding piece, which is away from the cylindrical boss, and the inclined sliding surface is attached to the wedge-shaped sliding surface and used for pushing the positioning sliding block and the positioning pin;

the sliding surface is attached to the slideway and can move relative to the slideway.

Preferably, the guide cylinder seat is provided with a guide hole, and the guide hole is a through hole extending along the extending direction of the axle.

Preferably, the guide rod comprises a guide boss, a guide rod outer wall, a first limiting surface, a second limiting surface and a guide mounting hole, wherein the guide rod is fixed in the guide rod mounting hole through the guide mounting hole, and the guide boss is movably connected to the guide hole.

Preferably, the guide cylinder comprises a guide cylinder mounting surface, a third limiting surface and a fourth limiting surface, and the guide cylinder mounting surface is mounted on the guide cylinder seat.

Preferably, the sliding block, the positioning device and the locking mechanism are all 6 groups.

Preferably, the positioning pin and the positioning slider are connected by a bolt.

With respect to the background art described above, the variable gauge bogie wheel set provided herein includes an axle, a wheel assembly, a bracket assembly, a wheel disc assembly, a positioning device, and a locking mechanism. The axle is of a rod-shaped structure, and a driving device seat, a bracket seat and a spline are sequentially arranged in the extending direction of the middle part of the axle to the end part; the wheel assembly comprises wheels, a connecting plate and an axle box, wherein the wheels are provided with mounting grooves and mounting holes for mounting the connecting plate, the connecting plate is provided with mounting seats connected with the wheels, the mounting seats are provided with first positioning grooves and second positioning grooves, the wheels are movably connected with splines of an axle, and the axle boxes are respectively connected with the end parts of the axle; the support assembly comprises a support and a sliding block, the support is provided with a support piece, a support hole, a positioning device groove and a guide cylinder seat, the support is sleeved on the axle through the support piece, the positioning device groove and the guide cylinder seat are alternately positioned on the outer peripheral surface of the support piece, and the sliding block movably penetrates through the matching hole on the positioning device groove; the wheel disc assembly comprises a transition disc and a friction disc, wherein a sliding block mounting hole, a guide rod mounting hole, a friction disc mounting hole and a first mounting hole are sequentially formed in the transition disc from inside to outside along the diameter direction of the circular surface, and the friction disc is connected with the friction disc mounting hole through a mounting through hole; the positioning device comprises a positioning pin, a positioning spring and a positioning sliding block, the positioning device is arranged in a positioning device groove, the positioning pin is connected with the positioning sliding block, the positioning sliding block is in contact with the sliding block, and the sliding block can push the positioning pin to be clamped with the first positioning groove or the second positioning groove; the locking mechanism comprises a guide rod, a guide cylinder and a spring, wherein the guide rod is connected to the transition disc, the guide cylinder is connected to the guide cylinder seat, and the guide rod can slide in the guide cylinder; specifically, wheel subassembly and bracket component overlap respectively and establish on the spline and the bracket seat of axletree, wheel disc subassembly mobilizable cover is established on the bracket piece periphery of support, be connected with sliding block and guide bar on the transition dish of wheel disc subassembly, connect on the support and be provided with positioner and guide cylinder, wherein, transition dish removes and can drive sliding block and guide bar and remove, and then lead to the positioner who contacts with sliding block to take place to remove, guide bar and cover are established the guide cylinder relative position outside the connecting rod and are changed, the positioner who makes on the support and the joint position of connecting plate on the wheel change, thereby make the distance between two wheels change, distance between the wheel and corresponding track unanimous, realize the stability of whole vehicle operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a variable gauge bogie wheel set according to an embodiment of the present invention;

FIG. 2 is a schematic view of an axle according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a wheel according to an embodiment of the present invention;

FIG. 4 is a schematic view of a wheel according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a connecting plate according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a bracket according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a stent according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a sliding block according to an embodiment of the present invention;

FIG. 9 is a schematic view of another view of a slider according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a transition disc according to an embodiment of the present invention;

FIG. 11 is a cross-sectional view of a transition disc according to an embodiment of the present invention;

FIG. 12 is a schematic view of a friction plate according to an embodiment of the present invention;

FIG. 13 is a cross-sectional view of a friction disk according to an embodiment of the present invention;

FIG. 14 is a front view of a positioning device according to an embodiment of the present invention;

FIG. 15 is a top view of a positioning device according to an embodiment of the present invention;

FIG. 16 is a cross-sectional view of a positioning device according to an embodiment of the present invention;

FIG. 17 is a cross-sectional view of a locking mechanism according to an embodiment of the present invention;

FIG. 18 is a cross-sectional view of a guide bar according to an embodiment of the present invention;

FIG. 19 is a cross-sectional view of a guide bar from another perspective in accordance with an embodiment of the present invention;

FIG. 20 is a cross-sectional view of a guide cylinder according to an embodiment of the present invention;

FIG. 21 is a cross-sectional view of a guide cylinder from another perspective according to an embodiment of the present invention;

FIG. 22 is a schematic view of a variable gauge bogie wheel set according to an embodiment of the present invention in a narrow gauge state;

wherein:

100-axle, 110-drive unit seat, 120-bracket seat, 130-spline;

200-wheels, 210-mounting grooves, 220-mounting holes, 230-slide ways, 240-spline ways and 250-second mounting holes;

300-connecting plates, 310-mounting seats, 320-first positioning grooves and 330-second positioning grooves;

400-axle boxes;

500-bracket, 510-bracket piece, 520-bracket hole, 530-positioning device slot, 540-guide seat, 541-guide hole, 550-mating hole;

600-sliding block, 610-cylindrical boss, 620-boss hole, 630-sliding piece, 640-inclined sliding surface, 650-sliding surface;

700-transition disc, 710-slider mounting hole, 720-guide bar mounting hole, 730-friction disc mounting hole, 740-first mounting hole;

800-friction disc, 810-mounting through hole;

900-positioning device, 910-positioning pin, 911-positioning boss, 920-positioning spring, 930-positioning slide block, 931-wedge sliding surface;

1000-locking mechanism, 1010-guide rod, 1011-guide boss, 1012-guide rod outer wall, 1013-first limit surface, 1014-second limit surface, 1015-guide mounting hole, 1020-guide cylinder, 1021-guide cylinder mounting surface, 1022-third limit surface, 1023-fourth limit surface, 1030-spring;

1100-a first sealing device;

1200-second sealing means.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left" and "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The utility model aims at providing a become gauge bogie wheelset, can avoid the unreasonable problem of wheelset system structural design.

In order to achieve the above purpose, the present invention provides the following technical solutions:

referring to fig. 1 to 22, the present embodiment provides a variable track bogie wheel set, including:

the axle 100 has a rod-shaped structure, and a driving device seat 110, a bracket seat 120 and a spline 130 are sequentially provided in the extending direction of the middle part of the axle 100 to the end part.

The driving device seat 110 is located at the center of the axle 100, and the bracket seat 120 and the spline 130 are respectively disposed between the driving device seat 110 and the end of the axle 100, that is, the number of the bracket seat 120 and the spline 130 is two.

The wheel assembly comprises a wheel 200, a connecting plate 300 and an axle box 400, wherein a mounting groove 210 and a mounting hole 220 for mounting the connecting plate 300 are formed in the wheel 200, a mounting seat 310 connected with the wheel 200 is formed in the connecting plate 300, a first positioning groove 320 and a second positioning groove 330 are formed in the mounting seat 310, the wheel 200 is movably connected with a spline 130 of an axle 100, and the axle box 400 is respectively connected with the end part of the axle 100.

It can be appreciated that after the mounting seat 310 of the connection plate 300 passes through the mounting groove 210, the mounting hole 220 and the mounting seat 310 are fixed by bolts, so that the connection plate 300 is fixed on the wheel 200, and the positions of the wheel 200 and the connection plate 300 are relatively fixed.

It should be noted that the number of the wheels 200 is two, the two wheels 200 are movably connected with the splines 130 located at two sides of the driving device seat 110, each wheel 200 corresponds to three mounting grooves 210 and three connecting plates 300, the mounting grooves 210 are uniformly distributed along the circumferential direction of the wheel 200, the number of the mounting holes 220 can be adjusted according to actual needs, and in this embodiment, six mounting holes 220 correspond to the outer side of each mounting groove 210.

The bracket assembly comprises a bracket 500 and a sliding block 600, wherein the bracket 500 is provided with a bracket member 510, a bracket hole 520, a positioning device groove 530 and a guide cylinder seat 540, the cross section of the bracket member 510 along the extending direction of the axle 100 is circular, the bracket hole 520 is a through hole penetrating the bracket member 510 along the extending direction of the axle 100, the bracket 500 is sleeved on the axle 100 through the bracket member 510, the positioning device groove 530 and the guide cylinder seat 540 are alternately positioned on the outer circumferential surface of the bracket member 510, and the sliding block 600 movably penetrates through the matching hole 550 on the positioning device groove 530.

It can be understood that the bracket 500 is mounted on the axle 100 through the bracket hole 520 and the bracket 500 mounting seat 310 on the axle 100 in an interference fit manner, the number of the positioning device slots 530 and the guide seats 540 on the bracket 500 are consistent, the positioning device slots 530 are provided with the matching holes 550 for connecting the sliding block 600, in this embodiment, the number of the matching holes 550 and the positioning device slots 530 are consistent, and in addition, the number and shape of the matching holes 550 can be adjusted according to practical needs.

The wheel disc assembly is connected to the outer peripheral portion of the support member 510, and comprises a transition disc 700 and a friction disc 800, wherein the transition disc 700 is in a cake shape, a sliding block mounting hole 710, a guide rod mounting hole 720, a friction disc mounting hole 730 and a first mounting hole 740 are sequentially formed in the transition disc 700 along the diameter direction of the round surface from inside to outside, the friction disc 800 is provided with a mounting through hole 810, and the friction disc 800 is connected to the friction disc mounting hole 730 through the mounting through hole 810.

The friction plate 800 is provided with a mounting through hole 810, and the friction plate 800 is mounted on the transition plate 700 by bolting.

The positioning device 900 comprises a positioning pin 910, a positioning spring 920 and a positioning slider 930, the positioning device 900 is mounted in the positioning device groove 530, the positioning pin 910 is connected with the positioning slider 930, the positioning slider 930 is in contact with the sliding block 600, and the sliding block 600 can push the positioning pin 910 to be clamped with the first positioning groove 320 or the second positioning groove 330.

It should be noted that, the positioning pin 910 is connected to the positioning slider 930, so that the positioning spring 920 is in a compressed state, when the positioning pin 910 is clamped to the first positioning slot 320, the wheel 200 is in a narrow-gauge state, when the positioning pin 910 is clamped to the second positioning slot 330, the wheel 200 is in a wide-gauge state, when the wheel 200 needs to be switched between the narrow-gauge state and the wide-gauge state, the sliding block 600 is separated from the positioning slider 930, so that the positioning pin 910 is separated from the first positioning slot 320 or the second positioning slot 330 which are clamped to each other, and then is clamped to the second positioning slot 330 or the first positioning slot 320 again, and in addition, the number of connecting plates 300 connected to each wheel 200 is consistent with the number of the mounting slots 210.

The locking mechanism 1000 comprises a guide rod 1010, a guide cylinder 1020 and a spring 1030, wherein the guide rod 1010 is connected to the transition disc 700, the guide cylinder 1020 is connected to the guide cylinder seat 540, and the guide rod 1010 can slide in the guide cylinder 1020.

It is understood that the guide rod 1010 is fixedly connected to the transition disc 700, the guide cylinder 1020 is fixedly connected to the guide cylinder seat 540, when the guide rod 1010 slides in the guide cylinder 1020, the distance between the transition disc 700 and the guide cylinder seat 540 along the axial direction of the axle 100 relatively changes, that is, the distance between the transition disc 700 and the bracket 500 along the axial direction of the axle 100 relatively changes, and the friction disc 800 is fixedly connected to the transition disc 700, so that the distance between the transition disc 700 and the bracket 500 can be changed by acting on the friction disc 800 through external force.

Specifically, the wheel 200 and the bracket assembly are respectively sleeved on the spline 130 and the bracket seat 120 of the axle 100, the movable sleeve of the wheel disc assembly is arranged on the periphery of the bracket member 510 of the bracket 500, the transition disc 700 of the wheel disc assembly is connected with the sliding block 600 and the guide rod 1010, the bracket 500 is connected with the positioning device 900 and the guide cylinder 1020, wherein the transition disc 700 moves to drive the sliding block 600 and the guide rod 1010 to move, the positioning device 900 contacted with the sliding block 600 is further caused to move, the relative position of the guide rod 1010 and the guide cylinder 1020 sleeved outside the connecting rod is changed, the clamping position of the positioning device 900 on the bracket 500 and the connecting plate 300 connected with the wheel 200 is changed, and therefore the distance between the two wheels 200 is changed, the distance between the wheels 200 is consistent with the corresponding track, and the running stability of the whole vehicle is realized.

Preferably, the wheel 200 further comprises: the slideway 230, the spline way 240 and the second mounting hole 250, and the sliding block 600 can move along the slideway 230; spline channel 240 is located at the junction of wheel 200 and axle 100, spline channel 240 being adapted to mate with spline 130; the second mounting holes 250 are uniformly distributed along the circumference of the wheel 200; the mounting groove 210 penetrates through the wheel 200 along the extending direction of the axle 100 and is used for being clamped with a mounting seat 310 of the connecting plate 300; the mounting hole 220 is used to fix the connection plate 300.

It will be appreciated that the wheels 200 are movable along the splines 130 of the axle 100 by the spline channels 240 on the wheels 200 cooperating with the splines 130 on the axle 100, the wheels 200 being provided with the slides 230 for sliding of the sliding blocks 600, in the present invention, 3 slides 230 per wheel 200.

Preferably, the variable track bogie wheel set further comprises a first sealing device 1100 and a second sealing device 1200, wherein two ends of the first sealing device 1100 are respectively connected with the first mounting hole 740 and the second mounting hole 250, two ends of the second sealing device 1200 are respectively connected with the second mounting hole 250 and the axle box 400, and the first sealing device 1100 and the second sealing device 1200 are used for preventing impurities and foreign matters from entering the positioning device 900 and the locking mechanism 1000 in the running process.

The inner and outer sides of the wheel 200 are respectively provided with a first sealing device 1100 and a second sealing device 1200, the first sealing device 1100 and the second sealing device 1200 are used for preventing impurities and foreign matters from entering the inter-axle spline 130 and the locking mechanism 1000 during operation, in this embodiment, the first sealing device 1100 and the second sealing device 1200 are respectively provided with two groups, and the materials and the shapes of the sealing devices can be adjusted according to actual needs, and are not particularly limited herein.

The transition plate 700 is provided with a guide rod mounting hole 720, a friction plate mounting hole 730, a first mounting hole 740, and a slider mounting hole 710, and the guide rod 1010, the friction plate 800, the first sealing device 1100, and the slider 600 are mounted by corresponding connection of bolts.

Preferably, the positioning pin 910 is provided with a positioning boss 911, the positioning boss 911 can be clamped with the first positioning groove 320 or the second positioning groove 330, the positioning slider 930 is provided with a wedge-shaped sliding surface 931, and the wedge-shaped sliding surface 931 is attached to the sliding block 600.

It should be noted that, the positioning device 900 includes a positioning pin 910, a positioning spring 920, and a positioning slider 930, where the positioning pin 910 and the positioning slider 930 are connected to make the positioning spring 920 in a compressed state, a positioning boss 911 is disposed on the positioning pin 910, the positioning boss 911 can limit the positioning spring 920 from separating from the positioning pin 910, the positioning boss 911 can be in clamping fit with the first positioning slot 320 or the second positioning slot 330, when the positioning spring 920 in a compressed state contacts with an inner wall of the positioning device slot 530 to maintain an elastic force during clamping, in addition, the positioning slider 930 is provided with a wedge sliding surface 931, and the sliding block 600 pushes the positioning slider 930 away from the axle 100 through the wedge sliding surface 931, so that the positioning pin 910 connected with the positioning slider 930 is clamped with the first positioning slot 320 or the second positioning slot 330 of the connecting plate 300.

Preferably, the sliding block 600 includes a cylindrical boss 610, a sliding member 630 and a sliding surface 650, wherein a boss hole 620 is provided in the cylindrical boss 610, and the cylindrical boss 610 is mounted to the sliding block mounting hole 710 through the boss hole 620; the sliding part 630 is connected to the cylindrical boss 610, an inclined sliding surface 640 is arranged at the end of the sliding part 630, which is away from the cylindrical boss 610, and the inclined sliding surface 640 is jointed with a wedge-shaped sliding surface 931 for pushing the positioning sliding block 930 and the positioning pin 910; the sliding surface 650 is attached to the slideway 230 and is movable relative to the slideway 230.

It will be appreciated that the cylindrical boss 610 of the slider 600 is fixed to the slider mounting hole 710 through the fitting hole 550, the inclined sliding surface 640 on the slider 600 is fitted with the wedge-shaped sliding surface 931 on the positioning device 900, the sliding surface 650 on the slider 600 is fitted with the slideway 230 on the wheel 200, the boss hole 620 is provided on the cylindrical boss 610, the boss hole 620 is fitted with the slider mounting hole 710 on the transition disc 700, and the slider 600 and the transition disc 700 are connected by bolting.

Preferably, the guide seat 540 is provided with a guide hole 541, and the guide hole 541 is a through hole extending in the extending direction of the axle 100.

The guide hole 541 is to allow one end of the guide rod 1010 to pass through to stabilize the entire locking mechanism 1000, and the guide rod 1010 may be moved relative to the guide hole 541 in the extending direction of the axle 100, and the number of the guide holes 541 is not particularly limited, so that the above object can be achieved.

Preferably, the guide bar 1010 includes a guide boss 1011, a guide bar outer wall 1012, a first limiting surface 1013, a second limiting surface 1014, and a guide mounting hole 1015, and the guide bar 1010 is fixed to the guide bar mounting hole 720 through the guide mounting hole 1015, and the guide boss 1011 is movably connected to the guide hole 541.

The guide boss 1011 on the guide bar 1010 is matched with the guide hole 541 on the bracket 500, the guide mounting hole 1015 on the guide bar 1010 is matched with the guide bar mounting hole 720 on the transition disc 700, the guide bar 1010 is connected with the transition disc 700 through bolts, and the guide bar 1010 is provided with a first limit surface 1013 and a second limit surface 1014 for limiting the relative movement of the guide bar 1010 and the guide cylinder 1020.

Preferably, the guide cylinder 1020 includes a guide cylinder mounting surface 1021, a third limiting surface 1022 and a fourth limiting surface 1023, and the guide cylinder mounting surface 1021 is mounted to the guide cylinder seat 540.

The guide cylinder mounting surface 1021 on the guide cylinder 1020 is engaged with the guide cylinder seat 540 on the bracket 500, and the guide cylinder 1020 is connected to the bracket 500 by bolts. The guide cylinder 1020 is provided with a third limiting surface 1022 and a fourth limiting surface 1023, the third limiting surface 1022 and the fourth limiting surface 1023 are used for limiting the relative displacement between the guide cylinder 1020 and the guide rod 1010, and therefore, the third limiting surface 1022 and the fourth limiting surface 1023 can limit the relative displacement between the bracket 500 and the transition disc 700.

Preferably, the sliding block 600, the positioning device 900 and the locking mechanism 1000 are all 6 groups.

In this embodiment, the number of the sliding blocks 600 and the positioning devices 900 is 6, the guide barrels 1020 of the locking mechanisms 1000 and the positioning devices 900 are connected to the bracket 500, and the number of the locking mechanisms 1000 and the number of the positioning devices 900 are the same, and are 6.

Preferably, the positioning pin 910 and the positioning slider 930 are connected by a bolt.

It should be noted that the connection manner of the positioning pin 910 and the positioning slider 930 may have various forms, and in this embodiment, a bolt connection is preferred.

The present invention resides in a variable gauge bogie wheel set comprising an axle 100, a wheel assembly, a bracket assembly, a wheel disc assembly, a positioning device 900, a locking mechanism 1000, a first seal 1100 and a second seal 1200. When the bogie wheel set is in a narrow gauge state, the inclined sliding surface 640 of the sliding block 600 pushes the positioning sliding block 930 to be far away from the axle 100, so that the positioning pin 910 of the positioning device 900 is clamped with the first positioning groove 320 of the connecting plate 300, at this time, the second limiting surface 1014 of the guide rod 1010 is contacted with the fourth limiting surface 1023 of the guide cylinder 1020, and the relative displacement of the guide rod 1010 and the guide cylinder 1020 is prevented, at this time, the positioning device 900 and the locking mechanism 1000 are fixed in position, and the relative positions of the wheel assembly, the bracket assembly and the wheel disc assembly are fixed; when the bogie wheel set is in a wide-rail state, the inclined sliding surface 640 of the sliding block 600 pushes the positioning sliding block 930 to be far away from the axle 100, so that the positioning pin 910 of the positioning device 900 is clamped with the second positioning groove 330 of the connecting plate 300, at this time, the first limiting surface 1013 of the guide rod 1010 is contacted with the third limiting surface 1022 of the guide cylinder 1020, and the relative displacement of the guide rod 1010 and the guide cylinder 1020 is prevented, at this time, the positioning device 900 and the locking mechanism 1000 are fixed in position, and the relative positions of the wheel assembly, the bracket assembly and the wheel disc assembly are fixed; taking the narrow-gauge state to the wide-gauge state as an example, when the bogie wheel set is required to be switched from the narrow-gauge state to the wide-gauge state, external force acts on the friction disc 800 to drive the transition disc 700 fixedly connected with the friction disc 800 to overcome the acting force of the spring 1030, so that the transition disc 700 drives the sliding block 600 and the guide rod 1010 to move towards the direction approaching the driving device seat 110, at the moment, the sliding block 600 is separated from the positioning sliding block 930, the positioning pin 910 connected with the positioning sliding block 930 is separated from the first positioning groove 320 under the elastic force of the positioning spring 920 in a compressed state, meanwhile, the spring 1030 between the guide rod 1010 and the guide cylinder 1020 is in a compressed state to realize unlocking of the wheel 200, when the wheel 200 reaches the corresponding position, the external force acting on the friction disc 800 is stopped, at the moment, under the action of the spring 1030 in the compressed state, the wheel disc assembly and the guide rod 1010 move in the direction approaching the driving device seat 110, at the moment, the sliding block 600 connected with the transition disc 700 moves in the same direction, and the inclined sliding surface 640 of the sliding block 930 contacts with the wedge-shaped sliding surface 931 of the positioning sliding block 930, so that the positioning device 900 is clamped with the second positioning groove 330 of the connecting plate 300, and the whole bogie wheel set is in the wide-gauge state; in addition, the guide bar 1010 of the locking mechanism 1000 has a first limiting surface 1013 and a second limiting surface 1014, the guide cylinder 1020 of the locking mechanism 1000 has a third limiting surface 1022 and a fourth limiting surface 1023, the first limiting surface 1013, the second limiting surface 1014, the third limiting surface 1022 and the fourth limiting surface 1023 are used for limiting the relative displacement of the guide bar 1010 and the guide cylinder 1020, and the first sealing device 1100 and the second sealing device 1200 are used for preventing impurities and foreign matters from entering the positioning device 900 and the locking mechanism 1000 during operation. The variable track gauge bogie wheel set arranged in this way can avoid the problem of unreasonable structural design of the wheel set system.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (10)

1. A variable gauge bogie wheel set comprising:

an axle (100);

the wheel assembly comprises a wheel (200), a connecting plate (300) and an axle box (400), wherein a mounting groove (210) and a mounting hole (220) for mounting the connecting plate (300) are formed in the wheel (200), a mounting seat (310) connected with the wheel (200) is formed in the connecting plate (300), a positioning groove is formed in the mounting seat (310), the wheel (200) is movably connected with a spline (130) of the axle (100), and the axle boxes (400) are respectively connected with the end parts of the axle (100);

the support assembly comprises a support (500) and a sliding block (600), wherein the support (500) is provided with a support piece (510), a support hole (520), a positioning device groove (530) and a guide cylinder seat (540), the cross section of the support piece (510) along the extending direction of the axle (100) is in a circular ring shape, the support hole (520) is a through hole penetrating through the support piece (510) along the extending direction of the axle (100), the support (500) is sleeved on the axle (100) through the support piece (510), the positioning device groove (530) and the guide cylinder seat (540) are alternately positioned on the peripheral surface of the support piece (510), and the sliding block (600) is movably penetrated in a matching hole (550) on the positioning device groove (530).

The wheel disc assembly is connected to the outer periphery of the bracket member (510) and comprises a transition disc (700) and a friction disc (800), the transition disc (700) is cake-shaped, a sliding block mounting hole (710), a guide rod mounting hole (720), a friction disc mounting hole (730) and a first mounting hole (740) are sequentially distributed on the transition disc (700) from inside to outside along the diameter direction of a round surface, and the friction disc (800) is connected to the friction disc mounting hole (730);

the positioning device (900) comprises a positioning pin (910) and a positioning sliding block (930), the positioning device (900) is installed in the positioning device groove (530), the positioning pin (910) is connected with the positioning sliding block (930), the positioning sliding block (930) is in contact with the sliding block (600), and the sliding block (600) can push the positioning pin (910) to be clamped with the positioning groove;

locking mechanism (1000), including guide bar (1010) and guide cylinder (1020), guide bar (1010) connect in transition dish (700), guide cylinder (1020) connect in guide cylinder seat (540), guide bar (1010) can slide in guide cylinder (1020).

2. The variable-gauge bogie wheel set of claim 1, wherein the wheel (200) comprises:

a slide (230), along which slide (230) the slider (600) is movable;

a spline channel (240) located at the junction of the wheel (200) and the axle (100), the spline channel (240) being adapted to cooperate with the spline (130);

second mounting holes (250) uniformly distributed along the circumferential direction of the wheel (200);

the mounting groove (210) penetrates through the wheel (200) along the extending direction of the axle (100) and is used for being clamped with the mounting seat (310) of the connecting plate (300);

the mounting hole (220) is used for fixing the connecting plate (300).

3. The variable gauge bogie wheel set according to claim 2, further comprising a first sealing device (1100) and a second sealing device (1200), wherein both ends of the first sealing device (1100) are respectively connected to the first mounting hole (740) and the second mounting hole (250), both ends of the second sealing device (1200) are respectively connected to the second mounting hole (250) and the axle box (400), and the first sealing device (1100) and the second sealing device (1200) are used for preventing impurities and foreign matters from entering the positioning device (900) and the locking mechanism (1000) during operation.

4. The variable-track bogie wheel set according to claim 2, wherein the positioning pin (910) is provided with a positioning boss (911), the positioning boss (911) can be clamped with the positioning groove, the positioning slider (930) is provided with a wedge-shaped sliding surface (931), and the wedge-shaped sliding surface (931) is attached to the sliding block (600).

5. The variable gauge bogie wheel set of claim 4, wherein the slider (600) comprises:

a cylindrical boss (610) having a boss hole (620) formed therein, the cylindrical boss (610) being mounted to the slider mounting hole (710) through the boss hole (620);

the sliding part (630) is connected with the cylindrical boss (610), an inclined sliding surface (640) is arranged at the end part of the sliding part (630) away from the cylindrical boss (610), and the inclined sliding surface (640) is attached to the wedge-shaped sliding surface (931) and used for pushing the positioning sliding block (930) and the positioning pin (910);

and a sliding surface (650) which is attached to the slide (230) and is movable relative to the slide (230).

6. The variable gauge bogie wheel set according to claim 4, wherein the guide cylinder seat (540) is provided with a guide hole (541), and the guide hole (541) is a through hole extending in the extending direction of the axle (100).

7. The variable gauge bogie wheel set according to claim 6, wherein the guide bar (1010) includes a guide boss (1011), a guide bar outer wall (1012), a first limit surface (1013), a second limit surface (1014), and a guide mounting hole (1015), the guide bar (1010) is fixed to the guide bar mounting hole (720) through the guide mounting hole (1015), and the guide boss (1011) is movably connected to the guide hole (541).

8. The variable gauge bogie wheel set of claim 6, wherein the guide cylinder (1020) comprises a guide cylinder mounting surface (1021), a third limiting surface (1022), and a fourth limiting surface (1023), the guide cylinder mounting surface (1021) being mounted to the guide cylinder seat (540).

9. The variable gauge bogie wheel set as defined in any one of claims 1-8, wherein the slider (600), the positioning device (900) and the locking mechanism (1000) are all 6 sets.

10. The variable gauge bogie wheel set of claim 9, wherein the locating pin (910) and the locating slider (930) are connected by a bolt.