A variable gauge bogie wheelset

Abstract

The application discloses a variable-gauge bogie wheel set and relates to the technical field of bogies of rail locomotives and vehicles, which comprises an axle, a wheel assembly, a support assembly, a wheel disc assembly, a positioning device and a locking mechanism. Specifically, the wheel assembly and the support assembly are respectively sleeved on the spline of the axle and the support seat; the wheel disc assembly is movably sleeved on the outer periphery of the support piece of the support; the transition disc of the wheel disc assembly is connected with a sliding block and a guide rod; and the support is connected with the positioning device and a guide cylinder. The transition disc movement drives the sliding block and the guide rod to move, and further causes the positioning device in contact with the sliding block to move. The relative position between the guide rod and the guide cylinder sleeved on the outside of the connecting rod changes, the clamping position of the positioning device on the support and the connecting plate connected to the wheel changes, the distance between the two wheels changes, the unreasonable structure design of the wheel set system is avoided, and the stability of the whole vehicle operation is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail vehicle bogies, and particularly relates to a variable-gauge bogie wheel set. BACKGROUND

[0002] Currently, the rail gauges of different countries and regions in the world are not the same, and even in some countries and regions, multiple gauges coexist. When the same train needs to cross the line on different gauge railway lines, there are currently three ways to handle it: the first is transfer, that is, transferring the freight box / passengers from a train of one gauge to a train of another gauge; the second is to replace the bogie, that is, replacing a bogie of one gauge with a bogie of another gauge; and the third is to use a variable-gauge bogie, that is, the bogie can actively or passively adjust to adapt to different gauges when crossing different gauge lines. The first two ways are low in efficiency, long in operation cycle, and high in cost, and the third way is the opposite.

[0003] The transformation of the gauge is reflected on the wheel set, that is, the axial position of the wheel on the axle needs to be transformed. The core requirement of the variable-gauge bogie is that the wheel can be unlocked and locked, the wheel can be axially accurately moved to a predetermined position on the axle after being unlocked, and the wheel can be reliably locked after the movement is completed. Currently, there are multiple variable-gauge technologies, but there are problems of unreasonable structure design, for example, Poland has developed a SUW2000 variable-gauge wheel set, which adopts a whole wheel set structure and an axle disc brake, can realize variable-gauge without unloading, but cannot drive power; Japan has developed an A-type variable-gauge bogie, which uses a wheel hub motor and an independent rotating wheel structure, and is not suitable for high speed.

[0004] Therefore, how to avoid the problem of unreasonable structure design of the wheel set system is a technical problem to be solved by those skilled in the art at present. SUMMARY

[0005] The purpose of the present application is to provide a variable-gauge bogie wheel set which can avoid the problem of unreasonable structure design of the wheel set system.

[0006] To achieve the above-mentioned purpose, the present application provides a variable-gauge bogie wheel set, which comprises:

[0007] The axle is a rod-shaped structure, and the driving device seat, the support seat and the spline are sequentially arranged in the extension direction of the middle part to the end part of the axle;

[0008] The wheel assembly comprises a wheel, a connecting plate and an axle box, the wheel is provided with a mounting groove and a mounting hole for mounting the connecting plate, the connecting plate is provided with a mounting seat connected with the wheel, the mounting seat is provided with a first positioning groove and a second positioning groove, the wheel is movably connected to the spline of the axle, and the axle box is connected to the end part of the axle;

[0009] The support assembly comprises a support and a sliding block, the support is provided with a support piece, a support hole, a positioning device slot and a guide cylinder seat, the support piece is circular in cross section along the extending direction of the axle, the support hole is a through hole penetrating the support piece along the extending direction of the axle, the support is sleeved on the axle through the support piece, the positioning device slot and the guide cylinder seat are alternately located on the outer circumferential surface of the support piece, and the sliding block is movably arranged in the matching hole of the positioning device slot;

[0010] The wheel disc assembly is connected to the outer circumferential part of the support piece and comprises a transition disc and a friction disc. The transition disc is in the shape of a pie, and the transition disc is sequentially provided with a sliding block mounting hole, a guide rod mounting hole, a friction disc mounting hole and a first mounting hole along the diameter direction of the circular surface from inside to outside. The friction disc is provided with a mounting through hole, and the friction disc is connected to the friction disc mounting hole through the mounting through hole.

[0011] The positioning device comprises a positioning pin, a positioning spring and a positioning sliding block. The positioning device is mounted in the positioning device slot. The positioning pin is connected to the positioning sliding block, and the positioning sliding block is in contact with the sliding block. The sliding block can push the positioning pin to be clamped with the first positioning slot or the second positioning slot.

[0012] The locking mechanism comprises a guide rod, a guide cylinder and a spring. 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.

[0013] Preferably, the wheel further comprises a sliding channel, a spline channel and a second mounting hole. The sliding block can move along the sliding channel. The spline channel is located at the connection between the wheel and the axle and is used for cooperation with the spline. The second mounting hole is uniformly distributed along the circumferential direction of the wheel. The mounting slot penetrates the wheel along the extending direction of the axle and is used for clamping with the mounting seat of the connecting plate. The mounting hole is used for fixing the connecting plate.

[0014] Preferably, the variable-gauge bogie wheel set further comprises a first sealing device and a second sealing device. The first sealing device is connected to the first mounting hole and the second mounting hole at two ends, respectively. The second sealing device is connected to the second mounting hole and the axle box at two ends, respectively. 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 during operation.

[0015] Preferably, the positioning pin is provided with a positioning boss, the positioning boss can be clamped with the first positioning slot or the second positioning slot, and the positioning sliding block is provided with a wedge-shaped sliding surface, which is in contact with the sliding block.

[0016] Preferably, the sliding block comprises:

[0017] The cylindrical boss is internally provided with a boss hole, and the cylindrical boss is mounted in the sliding block mounting hole through the boss hole.

[0018] The sliding piece is connected to the cylindrical boss, and the end of the sliding piece away from the cylindrical boss is provided with an inclined sliding surface, which is in contact with the wedge-shaped sliding surface and used for pushing the positioning sliding block and the positioning pin.

[0019] The sliding surface is attached to the slide and is movable relative to the slide.

[0020] Preferably, the guide cylinder seat is provided with a guide hole, which is a through hole extending along the direction of the axle.

[0021] 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, the guide rod is fixed to the guide rod mounting hole through the guide mounting hole, and the guide boss is movably connected to the guide hole.

[0022] 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 to the guide cylinder seat.

[0023] Preferably, the six groups of sliding blocks, positioning devices and locking mechanisms are provided.

[0024] Preferably, the positioning pin and the positioning sliding block are connected through a bolt.

[0025] With respect to the above background, the variable gauge bogie wheel set provided by the present application comprises an axle, a wheel assembly, a bracket assembly, a wheel disc assembly, a positioning device and a locking mechanism. The axle is a rod-shaped structure, and a driving device seat, a bracket seat and a spline are sequentially arranged on the axle in the direction of extension from the middle part to the end part. The wheel assembly comprises a wheel, a connecting plate and an axle box, the wheel is provided with a mounting groove and a mounting hole for mounting the connecting plate, the connecting plate is provided with a mounting seat connected with the wheel, the mounting seat is provided with a first positioning groove and a second positioning groove, the wheel is movably connected with the spline of the axle, and the axle box is connected with the end part of the axle. The bracket assembly comprises a bracket and a sliding block, the bracket is provided with a bracket piece, a bracket hole, a positioning device groove and a guide cylinder seat, the bracket is sleeved on the axle through the bracket piece, the positioning device groove and the guide cylinder seat are alternately arranged on the outer circumferential surface of the bracket piece, and the sliding block is movably arranged in the matching hole on the positioning device groove. The wheel disc assembly comprises a transition disc and a friction disc, the transition disc is sequentially provided with a sliding block mounting hole, a guide rod mounting hole, a friction disc mounting hole and a first mounting hole along the diameter direction of the circular surface from inside to outside, and the friction disc is connected with 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 mounted in the 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, the guide rod is connected with the transition disc, the guide cylinder is connected with the guide cylinder seat, and the guide rod can slide in the guide cylinder. Specifically, the wheel assembly and the bracket assembly are sleeved on the spline and the bracket seat of the axle respectively, the wheel disc assembly is movably sleeved on the outer circumferential surface of the bracket piece of the bracket, the transition disc of the wheel disc assembly is connected with the sliding block and the guide rod, and the bracket is connected with the positioning device and the guide cylinder. The transition disc moves to drive the sliding block and the guide rod to move, and then the positioning device in contact with the sliding block moves, the relative position between the guide rod and the guide cylinder sleeved on the connecting rod changes, the clamping position of the positioning device on the bracket and the connecting plate connected with the wheel changes, and thus the distance between the two wheels changes, so that the distance between the two wheels and the corresponding track are consistent, and the stability of the whole vehicle operation is realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on the provided drawings.

[0027] Figure 1 The structural schematic diagram of the variable gauge bogie wheel set provided by the embodiments of the present application;

[0028] Figure 2A structural schematic view of an axle provided by an embodiment of the present application is shown in FIG. 1.

[0029] Figure 3 A structural schematic view of a wheel provided by an embodiment of the present application is shown in FIG. 2.

[0030] Figure 4 Another structural schematic view of a wheel provided by an embodiment of the present application is shown in FIG. 3.

[0031] Figure 5 A structural schematic view of a connecting plate provided by an embodiment of the present application is shown in FIG. 4.

[0032] Figure 6 A structural schematic view of a bracket provided by an embodiment of the present application is shown in FIG. 5.

[0033] Figure 7 A structural sectional view of a bracket provided by an embodiment of the present application is shown in FIG. 6.

[0034] Figure 8 A structural schematic view of a sliding block provided by an embodiment of the present application is shown in FIG. 7.

[0035] Figure 9 Another structural schematic view of a sliding block provided by an embodiment of the present application is shown in FIG. 8.

[0036] Figure 10 A structural schematic view of a transition disc provided by an embodiment of the present application is shown in FIG. 9.

[0037] Figure 11 A structural sectional view of a transition disc provided by an embodiment of the present application is shown in FIG. 10.

[0038] Figure 12 A structural schematic view of a friction disc provided by an embodiment of the present application is shown in FIG. 11.

[0039] Figure 13 A structural sectional view of a friction disc provided by an embodiment of the present application is shown in FIG. 12.

[0040] Figure 14 A structural front view of a positioning device provided by an embodiment of the present application is shown in FIG. 13.

[0041] Figure 15 A structural top view of a positioning device provided by an embodiment of the present application is shown in FIG. 14.

[0042] Figure 16 A structural sectional view of a positioning device provided by an embodiment of the present application is shown in FIG. 15.

[0043] Figure 17 A structural sectional view of a locking mechanism provided by an embodiment of the present application is shown in FIG. 16.

[0044] Figure 18 A structural sectional view of a guide rod provided by an embodiment of the present application is shown in FIG. 17.

[0045] Figure 19 Structure sectional view of the guide rod from another perspective for the embodiment of the present application;

[0046] Figure 20 Structure sectional view of the guide cylinder for the embodiment of the present application;

[0047] Figure 21 Structure sectional view of the guide cylinder from another perspective for the embodiment of the present application;

[0048] Figure 22 Structure schematic view of the wheel set of the variable-gauge bogie in the narrow-gauge state for the embodiment of the present application;

[0049] Wherein:

[0050] 100 - axle, 110 - driving device seat, 120 - support seat, 130 - spline;

[0051] 200 - wheel, 210 - mounting groove, 220 - mounting hole, 230 - slide, 240 - spline way, 250 - second mounting hole;

[0052] 300 - connecting plate, 310 - mounting seat, 320 - first positioning groove, 330 - second positioning groove;

[0053] 400 - axle box;

[0054] 500 - support, 510 - support piece, 520 - support hole, 530 - positioning device groove, 540 - guide cylinder seat, 541 - guide hole, 550 - fitting hole;

[0055] 600 - sliding block, 610 - cylindrical boss, 620 - boss hole, 630 - sliding piece, 640 - inclined sliding surface, 650 - sliding surface;

[0056] 700 - transition disc, 710 - sliding block mounting hole, 720 - guide rod mounting hole, 730 - friction disc mounting hole, 740 - first mounting hole;

[0057] 800 - friction disc, 810 - mounting through hole;

[0058] 900 - positioning device, 910 - positioning pin, 911 - positioning boss, 920 - positioning spring, 930 - positioning sliding block, 931 - wedge-shaped sliding surface;

[0059] 1000 - locking mechanism, 1010 - guide rod, 1011 - guide boss, 1012 - outer wall of guide rod, 1013 - first limiting surface, 1014 - second limiting surface, 1015 - guide mounting hole, 1020 - guide cylinder, 1021 - guide cylinder mounting surface, 1022 - third limiting surface, 1023 - fourth limiting surface, 1030 - spring;

[0060] 1100 - first sealing device

[0061] 1200 - second sealing device. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0063] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the position or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0064] The purpose of the present application is to provide a variable gauge bogie wheel set which can avoid the problem of unreasonable structure design of the wheel set system.

[0065] To achieve the above object, the present application provides the following technical solutions:

[0066] Please refer to Figures 1 to 22 The present embodiment provides a variable gauge bogie wheel set, which comprises:

[0067] The axle 100 is a rod-shaped structure, and the driving device seat 110, the support seat 120 and the spline 130 are sequentially arranged in the extension direction from the middle part to the end part of the axle 100.

[0068] It should be noted that the driving device seat 110 is located in the center of the axle 100, and the support seat 120 and the spline 130 are respectively arranged between the driving device seat 110 and the end part of the axle 100, that is, the number of the support seat 120 and the spline 130 is two.

[0069] The wheel assembly comprises a wheel 200, a connecting plate 300 and an axle box 400, the wheel 200 is provided with a mounting groove 210 and a mounting hole 220 for mounting the connecting plate 300, the connecting plate 300 is provided with a mounting seat 310 connected with the wheel 200, the mounting seat 310 is provided with a first positioning groove 320 and a second positioning groove 330, the wheel 200 is movably connected to the spline 130 of the axle 100, and the axle box 400 is respectively connected to the end part of the axle 100.

[0070] It can be understood that the mounting seat 310 of the connecting plate 300 is inserted through the mounting groove 210, and the mounting hole 220 is fixedly connected with the mounting seat 310 by a bolt, so that the connecting plate 300 is fixed on the wheel 200, and the positions of the wheel 200 and the connecting plate 300 are relatively fixed.

[0071] It should be noted that the number of the wheel 200 is two, and the two wheels 200 are movably connected with the spline 130 located on both 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, and the number of the mounting hole 220 can be adjusted according to actual needs, and in the embodiment, six mounting holes 220 correspond to the outer side of each mounting groove 210.

[0072] The bracket assembly comprises a bracket 500 and a sliding block 600, the bracket 500 is provided with a bracket piece 510, a bracket hole 520, a positioning device groove 530 and a guide cylinder seat 540, the bracket piece 510 is circular in cross section along the extending direction of the axle 100, the bracket hole 520 is a through hole penetrating the bracket piece 510 along the extending direction of the axle 100, the bracket 500 is sleeved on the axle 100 through the bracket piece 510, the positioning device groove 530 and the guide cylinder seat 540 are alternately located on the outer circumferential surface of the bracket piece 510, and the sliding block 600 is movably inserted into the matching hole 550 on the positioning device groove 530.

[0073] It can be understood that the bracket 500 is installed on the axle 100 in interference fit through the bracket hole 520 and the bracket 500 mounting seat 310 on the axle 100, the number of the positioning device groove 530 and the guide cylinder seat 540 on the bracket 500 is consistent, the matching hole 550 for connecting the sliding block 600 is arranged on the positioning device groove 530, and in the embodiment, the number of the matching hole 550 is consistent with the number of the positioning device groove 530, and in addition, the number and shape of the matching hole 550 can be adjusted according to actual needs.

[0074] The wheel disc assembly is connected to the outer circumferential part of the bracket piece 510 and comprises a transition disc 700 and a friction disc 800, the transition disc 700 is pie-shaped, the sliding block mounting hole 710, the guide rod mounting hole 720, the friction disc mounting hole 730 and the first mounting hole 740 are sequentially arranged on the transition disc 700 from inside to outside along the diameter direction of the circular surface, 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.

[0075] It should be noted that the mounting through hole 810 is arranged on the friction disc 800, and the friction disc 800 is mounted on the transition disc 700 through bolt connection.

[0076] The positioning device 900 comprises a positioning pin 910, a positioning spring 920 and a positioning slider 930, the positioning device 900 is installed in the positioning device slot 530, the positioning pin 910 and the positioning slider 930 are connected, 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 slot 320 or the second positioning slot 330.

[0077] It should be noted that the positioning pin 910 is connected with the positioning slider 930, so that the positioning spring 920 is in a compressed state, when the positioning pin 910 is clamped with the first positioning slot 320, the wheel 200 is in a narrow rail state, when the positioning pin 910 is clamped with the second positioning slot 330, the wheel 200 is in a wide rail state, when the wheel 200 needs to switch between the narrow rail state and the wide rail state, the sliding block 600 is separated from the positioning slider 930, so that the positioning pin 910 is first separated from the clamped first positioning slot 320 or the second positioning slot 330, and then is clamped with the second positioning slot 330 or the first positioning slot 320, in addition, the number of the connecting plates 300 connected with each wheel 200 is consistent with the number of the installation slots 210.

[0078] The locking mechanism 1000 comprises a guide rod 1010, a guide cylinder 1020 and a spring 1030, the guide rod 1010 is connected with the transition disc 700, the guide cylinder 1020 is connected with the guide cylinder seat 540, and the guide rod 1010 can slide in the guide cylinder 1020.

[0079] It can be understood that the guide rod 1010 is fixedly connected with the transition disc 700, the guide cylinder 1020 is fixedly connected with 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 axle 100 changes relatively, that is, the distance between the transition disc 700 and the support 500 along the axle 100 changes relatively, the friction disc 800 is fixedly connected with the transition disc 700, and therefore, the distance between the transition disc 700 and the support 500 can be changed by acting an external force on the friction disc 800, in addition, in the present application, the locking mechanism 1000 is located between the wheel 200 and the friction disc 800, that is, the locking mechanism 1000 is located between the two wheels 200.

[0080] Specifically, the wheel 200 and the bracket assembly are respectively sleeved on the spline 130 of the axle 100 and the bracket seat 120, the wheel disc assembly is movably sleeved on the outer periphery of the bracket piece 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, and the bracket 500 is connected and provided with the positioning device 900 and the guide cylinder 1020. The transition disc 700 moves to drive the sliding block 600 and the guide rod 1010 to move, and then the positioning device 900 in contact with the sliding block 600 moves, the relative position of the guide rod 1010 and the guide cylinder 1020 sleeved on the outside of the connecting rod changes, the positioning device 900 on the bracket 500 changes the clamping position of the connecting plate 300 connected to the wheel 200, so that the distance between the two wheels 200 changes, the distance between the two wheels 200 and the corresponding track are consistent, and the stability of the whole vehicle operation is realized.

[0081] Preferably, the wheel 200 further comprises a sliding channel 230, a spline channel 240 and a second mounting hole 250, the sliding block 600 can move along the sliding channel 230, the spline channel 240 is located at the connection between the wheel 200 and the axle 100, and the spline channel 240 is used for cooperation with the spline 130, the second mounting hole 250 is uniformly distributed along the circumference of the wheel 200, the mounting groove 210 penetrates through the wheel 200 along the extension direction of the axle 100, and is used for clamping with the mounting seat 310 of the connecting plate 300; and the mounting hole 220 is used for fixing the connecting plate 300.

[0082] It can be understood that, by cooperation of the spline channel 240 on the wheel 200 with the spline 130 on the axle 100, the wheel 200 can move along the spline 130 of the axle 100, and the wheel 200 is provided with the sliding channel 230 for sliding of the sliding block 600, and in the application, each wheel 200 is provided with three sliding channels 230.

[0083] Preferably, the variable gauge bogie wheel set further comprises a first sealing device 1100 and a second sealing device 1200, the first sealing device 1100 is respectively connected with the first mounting hole 740 and the second mounting hole 250 at two ends, the second sealing device 1200 is respectively connected with the second mounting hole 250 and the axle box 400 at two ends, 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.

[0084] The inner and outer sides of the wheel 200 are respectively provided with a first sealing device 1100 and a second sealing device 1200, which are used to prevent impurities and foreign matters from entering the spline 130 and the locking mechanism 1000 during operation. In this embodiment, the first sealing device 1100 and the second sealing device 1200 each have two groups, and the material and shape of the sealing device can be adjusted according to actual needs, which are not specifically limited here.

[0085] It should be noted that the transition disc 700 is provided with a guide rod mounting hole 720, a friction disc mounting hole 730, a first mounting hole 740, and a sliding block mounting hole 710, which are connected and mounted with the guide rod 1010, the friction disc 800, the first sealing device 1100, and the sliding block 600 through bolts.

[0086] As preferred, the positioning pin 910 is provided with a positioning boss 911, which can be clamped with the first positioning groove 320 or the second positioning groove 330, and the positioning sliding block 930 is provided with a wedge-shaped sliding surface 931, which is attached to the sliding block 600.

[0087] It should be noted that the positioning device 900 includes the positioning pin 910, the positioning spring 920, and the positioning sliding block 930, the positioning pin 910 and the positioning sliding block 930 are connected to make the positioning spring 920 in a compressed state, the positioning pin 910 is provided with the positioning boss 911, which can limit the positioning spring 920 from disengaging from the positioning pin 910, and the positioning boss 911 can be clamped with the first positioning groove 320 or the second positioning groove 330, when clamped, the positioning spring 920 in the compressed state is in contact with the inner wall of the positioning device groove 530 to maintain the elastic force, in addition, the positioning sliding block 930 is provided with the wedge-shaped sliding surface 931, the sliding block 600 pushes the positioning sliding block 930 away from the axle 100 through the wedge-shaped sliding surface 931, so that the positioning pin 910 connected with the positioning sliding block 930 is clamped with the first positioning groove 320 or the second positioning groove 330 of the connecting plate 300.

[0088] As preferred, the sliding block 600 includes a cylindrical boss 610, a sliding piece 630, and a sliding surface 650, the cylindrical boss 610 is internally provided with a boss hole 620, and the cylindrical boss 610 is installed in the sliding block mounting hole 710 through the boss hole 620; the sliding piece 630 is connected to the cylindrical boss 610, the end of the sliding piece 630 away from the cylindrical boss 610 is provided with an inclined sliding surface 640, which is attached to the wedge-shaped sliding surface 931 for pushing the positioning sliding block 930 and the positioning pin 910; and the sliding surface 650 is attached to the slide 230 and can move relative to the slide 230.

[0089] It can be understood that the cylindrical boss 610 of the sliding block 600 is fixed in the sliding block mounting hole 710 through the matching hole 550, the inclined sliding surface 640 on the sliding block 600 matches the wedge-shaped sliding surface 931 on the positioning device 900, the sliding surface 650 on the sliding block 600 matches the sliding groove 230 on the wheel 200, the boss hole 620 is arranged on the cylindrical boss 610, the boss hole 620 matches the sliding block mounting hole 710 on the transition disc 700, and the sliding block 600 and the transition disc 700 are connected through bolt connection.

[0090] Preferably, the guide hole 541 is arranged on the guide cylinder seat 540, and the guide hole 541 is a through hole extending along the extension direction of the axle 100.

[0091] It should be noted that the guide hole 541 is arranged to enable one end of the guide rod 1010 to pass through the locking mechanism 1000, and the guide rod 1010 can move along the extension direction of the axle 100 relative to the guide hole 541. The number of guide holes 541 is not limited here, as long as the above purpose can be achieved.

[0092] Preferably, the guide rod 1010 comprises a guide boss 1011, a guide rod outer wall 1012, a first limiting surface 1013, a second limiting surface 1014, and a guide mounting hole 1015. The guide rod 1010 is fixed to the guide rod mounting hole 720 through the guide mounting hole 1015, and the guide boss 1011 is movably connected to the guide hole 541.

[0093] The guide boss 1011 on the guide rod 1010 matches the guide hole 541 on the bracket 500, the guide mounting hole 1015 on the guide rod 1010 matches the guide rod mounting hole 720 on the transition disc 700, the guide rod 1010 is connected to the transition disc 700 through a bolt, and the first limiting surface 1013 and the second limiting surface 1014 are arranged on the guide rod 1010 and used to limit the relative movement of the guide rod 1010 and the guide cylinder 1020.

[0094] Preferably, the guide cylinder 1020 comprises 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 on the guide cylinder seat 540.

[0095] The guide cylinder mounting surface 1021 on the guide cylinder 1020 matches the guide cylinder seat 540 on the bracket 500, and the guide cylinder 1020 is connected to the bracket 500 through a bolt. The third limiting surface 1022 and the fourth limiting surface 1023 are arranged on the guide cylinder 1020 and used to limit the relative displacement of the guide cylinder 1020 and the guide rod 1010. It can be seen that the third limiting surface 1022 and the fourth limiting surface 1023 can limit the relative displacement of the bracket 500 and the transition disc 700.

[0096] As preferred, the sliding blocks 600, the positioning devices 900 and the locking mechanisms 1000 are all 6 groups.

[0097] It should be noted that in the present embodiment, the number of the sliding blocks 600 and the positioning devices 900 are one-to-one corresponding, and are all 6 groups. The guide cylinders 1020 of the locking mechanisms 1000 are connected to the support 500 with the positioning devices 900. The number of the locking mechanisms 1000 is consistent with the number of the positioning devices 900, and are all 6 groups.

[0098] As preferred, the positioning pins 910 and the positioning sliding blocks 930 are connected by bolts.

[0099] It should be noted that the connection mode of the positioning pins 910 and the positioning sliding blocks 930 can have multiple forms, and in the present embodiment, the bolt connection is preferred.

[0100] The present application relates to 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 sealing device 1100 and a second sealing device 1200.When the bogie wheelset is in the narrow-gauge state, the inclined sliding surface 640 of the sliding block 600 pushes the positioning sliding block 930 away from the axle 100, so that the positioning pin 910 of the positioning device 900 is clamped with the first positioning slot 320 of the connecting plate 300, at this time, the second limiting surface 1014 of the guide rod 1010 is in contact with the fourth limiting surface 1023 of the guide cylinder 1020, preventing the relative displacement of the guide rod 1010 and the guide cylinder 1020, at this time, the positioning device 900 and the locking mechanism 1000 are positionally fixed, so that the relative positions of the wheel assembly, the support assembly and the wheel disc assembly are fixed; when the bogie wheelset is in the wide-gauge state, the inclined sliding surface 640 of the sliding block 600 pushes the positioning sliding block 930 away from the axle 100, so that the positioning pin 910 of the positioning device 900 is clamped with the second positioning slot 330 of the connecting plate 300, at this time, the first limiting surface 1013 of the guide rod 1010 is in contact with the third limiting surface 1022 of the guide cylinder 1020, preventing the relative displacement of the guide rod 1010 and the guide cylinder 1020, at this time, the positioning device 900 and the locking mechanism 1000 are positionally fixed, so that the relative positions of the wheel assembly, the support assembly and the wheel disc assembly are fixed; taking the switching from the narrow-gauge state to the wide-gauge state as an example, when the bogie wheelset needs to be switched from the narrow-gauge state to the wide-gauge state, an external force is applied to the friction disc 800, driving the transition disc 700 fixedly connected with the friction disc 800 to overcome the 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 driving device seat 110, at this time, the sliding block 600 is separated from the positioning sliding block 930, so that the positioning pin 910 connected with the positioning sliding block 930 is separated from the first positioning slot 320 under the elastic force of the positioning spring 920 in the compressed state, at the same time, the spring 1030 between the guide rod 1010 and the guide cylinder 1020 is in the compressed state, realizing the unlocking of the wheel 200, when the wheel 200 reaches the corresponding position, the external force applied to the friction disc 800 is stopped, at this time, under the action of the spring 1030 in the compressed state, the wheel disc assembly and the guide rod 1010 move away from the driving device seat 110, at this time, it will drive the sliding block 600 connected with the transition disc 700 to move in the same direction, when the inclined sliding surface 640 of the sliding block 600 is in contact with the wedge-shaped sliding surface 931 of the positioning sliding block 930, the positioning device 900 is clamped with the second positioning slot 330 of the connecting plate 300, so that the entire wheelset system is in the wide-gauge state; in addition, the guide rod 1010 of the locking mechanism 1000 has the first limiting surface 1013 and the second limiting surface 1014, the guide cylinder 1020 of the locking mechanism 1000 has the third limiting surface 1022 and the 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 to limit the relative displacement of the guide rod 1010 and the guide cylinder 1020, the first sealing device 1100 and the second sealing device 1200 are used to prevent impurities and foreign matters from entering the positioning device 900 and the locking mechanism 1000 during operation.The variable-gauge bogie wheel pair thus arranged can avoid unreasonable structure design of the wheel pair system.

[0101] It should be noted that the relational terms herein, such as first and second, are used only to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between or among these entities.

[0102] The principles and implementation modes of the present application are described herein by using specific examples, and the above examples are only used to help understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A variable gauge bogie wheelset, characterized in that: include: Axle (100); A wheel assembly comprises a wheel (200), a connecting plate (300) and an axle box (400); the wheel (200) is provided with a mounting groove (210) and a mounting hole (220) for mounting the connecting plate (300); the connecting plate (300) is provided with a mounting seat (310) connected to the wheel (200); the mounting seat (310) is provided with a positioning groove; the wheel (200) is movably connected to a spline (130) of the axle (100); and the axle box (400) is respectively connected to the ends of the axle (100); A 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 tube seat (540), wherein the cross section of the bracket member (510) along the extension direction of the axle (100) is annular, the bracket hole (520) is a through hole penetrating the bracket member (510) along the extension 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 tube seat (540) are alternately located on the outer peripheral surface of the bracket member (510), and the sliding block (600) is movably penetrated through the matching hole (550) on the positioning device groove (530); A wheel disc assembly is connected to the outer periphery of the bracket member (510), comprising a transition disc (700) and a friction disc (800); the transition disc (700) is in the shape of a pancake; the transition disc (700) is provided with a sliding block mounting hole (710), a guide rod mounting hole (720), a friction disc mounting hole (730), and a first mounting hole (740) in sequence from the inside to the outside along the diameter direction of the circular surface; the friction disc (800) is connected to the friction disc mounting hole (730); A positioning device (900) includes a positioning pin (910) and a positioning slider (930), wherein the positioning device (900) is installed in the positioning device slot (530), the positioning pin (910) and the positioning slider (930) are connected, the positioning slider (930) contacts the sliding block (600), and the sliding block (600) can push the positioning pin (910) to engage with the positioning slot; The locking mechanism (1000) comprises a guide rod (1010) and a guide cylinder (1020), wherein the guide rod (1010) is connected to the transition plate (700), the guide cylinder (1020) is connected to the guide cylinder seat (540), and the guide rod (1010) is capable of sliding in the guide cylinder (1020).

2. The variable gauge bogie wheelset according to claim 1, characterized in that: The wheel (200) comprises: a slideway (230), wherein the sliding block (600) is capable of moving along the slideway (230); A spline path (240) is located at the connection between the wheel (200) and the axle (100), and the spline path (240) is used to cooperate with the spline (130); Second mounting holes (250) are evenly distributed along the circumference of the wheel (200); The mounting groove (210) passes through the wheel (200) along the extension direction of the axle (100) and is used for clamping with the mounting seat (310) of the connecting plate (300); The mounting hole (220) is used to fix the connecting plate (300).

3. The variable gauge bogie wheelset according to claim 2, characterized in that: The invention also includes a first sealing device (1100) and a second sealing device (1200), wherein two ends of the first sealing device (1100) are respectively connected to the first mounting hole (740) and the second mounting hole (250), and two 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 to prevent impurities and foreign matter from entering the positioning device (900) and the locking mechanism (1000) during operation.

4. The variable gauge bogie wheelset according to claim 2, characterized in that: The positioning pin (910) is provided with a positioning boss (911), and the positioning boss (911) can be engaged 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 in contact with the sliding block (600).

5. The variable gauge bogie wheelset according to claim 4, characterized in that: The sliding block (600) comprises: A cylindrical boss (610) is provided with a boss hole (620) therein, and the cylindrical boss (610) is mounted on the sliding block mounting hole (710) through the boss hole (620); A sliding member (630) is connected to the cylindrical boss (610), and an inclined sliding surface (640) is provided at the end of the sliding member (630) facing away from the cylindrical boss (610), and the inclined sliding surface (640) is in contact with the wedge-shaped sliding surface (931) to push the positioning slider (930) and the positioning pin (910); The sliding surface (650) is in contact with the slideway (230) and is movable relative to the slideway (230).

6. The variable gauge bogie wheelset according to claim 4, characterized in that: The guide cylinder seat (540) is provided with a guide hole (541), and the guide hole (541) is a through hole extending along the extension direction of the axle (100).

7. The variable gauge bogie wheelset according to claim 6, characterized in that: The guide rod (1010) comprises a guide boss (1011), a guide rod outer wall (1012), a first limiting surface (1013), a second limiting surface (1014) and a guide mounting hole (1015); the guide rod (1010) is fixed to the guide rod mounting hole (720) via the guide mounting hole (1015); and the guide boss (1011) is movably connected to the guide hole (541).

8. The variable gauge bogie wheelset according to claim 6, characterized in that: 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) is mounted on the guide cylinder seat (540).

9. The variable gauge bogie wheelset according to any one of claims 1 to 8, characterized in that: There are six sets of the sliding block (600), the positioning device (900) and the locking mechanism (1000).

10. The variable gauge bogie wheelset according to claim 9, characterized in that: The positioning pin (910) and the positioning slide block (930) are connected by bolts.

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