Guide structure for railway vehicle, bogie and railway vehicle

Abstract

The utility model discloses a guide structure for a railway vehicle, a bogie and the railway vehicle. The guide structure is connected to a vehicle chassis and comprises a rotatable frame, a first guide wheel set and a second guide wheel set. The rotatable frame is connected with the first guide wheel set and the second guide wheel set which are arranged in the first direction in a spaced mode. The first guide wheel set is provided with at least two first guide wheels at intervals in the second direction. The second guide wheel set is provided with at least two second guide wheels at intervals in the second direction. The first direction is intersected with the second direction; the rotatable frame rotates to adjust the distance between the first guide wheel set and the second guide wheel set in the first direction. The guide structure is provided with the rotatable frame, the rotatable frame is suitable for rotating to adjust the distance between the first guide wheel set and the second guide wheel set in the first direction, and the guide structure is simple in structure, few in parts and low in cost.

Description

Technical Field

[0001] The utility model relates to the field of rail vehicles, in particular to a guide structure, a bogie and a rail vehicle for a rail vehicle. Background Art

[0002] In the related art, rail vehicles are generally provided with a frame, on which guide wheels are provided, and the travel wheels are guided by the cooperation between the guide wheels and the track beams, and the spacing between the left and right guide wheels is a fixed value and cannot be adjusted. In some existing technologies, the spacing between the left and right guide wheels is adjusted by the linear motion of the driving mechanism and the transmission mechanism, which has many parts, a complex structure and a high cost. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a guide structure for a rail vehicle. The guide structure designed according to the utility model is provided with a rotatable frame, which is suitable for rotating to adjust the spacing between the first guide wheel group and the second guide wheel group in the first direction, and has a simple structure, few parts and low cost.

[0004] The utility model also provides a bogie with the guide structure.

[0005] The utility model also provides a rail vehicle with the bogie.

[0006] According to the utility model, the guide structure for a rail vehicle is connected to a vehicle chassis and comprises: a rotatable frame, a first guide wheel group and a second guide wheel group; wherein the rotatable frame connects the first guide wheel group and the second guide wheel group which are spaced apart along a first direction; the first guide wheel group has at least two first guide wheels spaced apart along a second direction; the second guide wheel group has at least two second guide wheels spaced apart along a second direction; the first direction intersects with the second direction; the rotatable frame is rotated to adjust the spacing between the first guide wheel group and the second guide wheel group in the first direction.

[0007] According to the guide structure of the utility model, the spacing between the first guide wheel group and the second guide wheel group in the first direction is adjusted by rotating the rotatable frame, and the spacing between the first guide wheel group and the second guide wheel group in the first direction can be adjusted without the participation of other driving structures or transmission structures. The overall number of parts is small, the structure is simpler, and the cost of the guide structure can be reduced.

[0008] According to some embodiments of the present invention, the guide structure for a rail vehicle further includes at least one set of locking devices, which are used to lock the rotation of the rotatable frame to fix the spacing between the first guide wheel group and the second guide wheel group in the first direction.

[0009] According to some embodiments of the utility model, the rotatable frame includes: at least two cross beams and at least two longitudinal beams, the longitudinal beams extend along the second direction, two adjacent longitudinal beams are spaced apart along the first direction, two adjacent cross beams are spaced apart and are rotatably connected to both ends of the two longitudinal beams respectively, and the cross beams and the longitudinal beams are rotatably connected to adjust the spacing between the first guide wheel and the second guide wheel in the first direction.

[0010] According to some embodiments of the present utility model, the longitudinal beam includes a first longitudinal beam, a second longitudinal beam and a third longitudinal beam, and the third longitudinal beam is located between the first longitudinal beam and the second longitudinal beam; the cross beam includes a first cross beam and a second cross beam, and both ends of the first cross beam are rotatably connected to the same side ends of the first longitudinal beam and the second longitudinal beam, respectively, and both ends of the second cross beam are rotatably connected to the other same side ends of the first longitudinal beam and the second longitudinal beam; one end of the third longitudinal beam is rotatably connected to the first cross beam, and the other end of the third longitudinal beam is rotatably connected to the second cross beam, and the third longitudinal beam is suitable for connecting to a vehicle chassis to connect the rotatable frame to the vehicle chassis.

[0011] According to some embodiments of the utility model, the first cross beam includes a first rotating rod and a second rotating rod, and the second cross beam includes a third rotating rod and a fourth rotating rod; one end of the first rotating rod is rotatably connected to one end of the first longitudinal beam, and the other end is rotatably connected to one end of the third longitudinal beam; one end of the second rotating rod is rotatably connected to one end of the second longitudinal beam, and the other end is rotatably connected to one end of the third longitudinal beam; one end of the third rotating rod is rotatably connected to the other end of the first longitudinal beam, and the other end is rotatably connected to the other end of the third longitudinal beam; one end of the fourth rotating rod is rotatably connected to the other end of the second longitudinal beam, and the other end is rotatably connected to the other end of the third longitudinal beam.

[0012] According to some embodiments of the utility model, a first locking hole is formed on the third longitudinal beam, and a second locking hole corresponding to the first locking hole is provided on the first cross beam and / or the second cross beam; wherein the locking device is constructed as a spline shaft and respectively cooperates with the first locking hole and the second locking hole to limit the rotation of the cross beam relative to the longitudinal beam.

[0013] According to some embodiments of the utility model, a third locking hole is provided on the first longitudinal beam and / or the second longitudinal beam, and a fourth locking hole corresponding to the third locking hole is provided on the first cross beam and / or the second cross beam; wherein the locking device is constructed as a spline shaft and respectively cooperates with the third locking hole and the fourth locking hole to limit the rotation of the cross beam relative to the longitudinal beam.

[0014] According to some embodiments of the utility model, the locking device is constructed as a locking rod, and a first connecting end and a second connecting end are provided on the locking rod. The first connecting end is hinged to a longitudinal beam or a transverse beam, and the second connecting end is hinged to other longitudinal beams or other transverse beams, and the distance between the first connecting end and the second connecting end can be changed.

[0015] According to some embodiments of the present invention, the locking rod includes: a screw portion, one end of which is configured as the first connecting end; and an adjusting nut, which is movably disposed on the screw portion and is configured as the second connecting end.

[0016] According to some embodiments of the present utility model, the guide structure for a rail vehicle further includes: a vibration reduction structure, wherein the vibration reduction structure is arranged between the first connecting end and the second connecting end.

[0017] According to some embodiments of the utility model, the locking device includes a distance rod, a guide rod, a mounting block and a hinge; the mounting block is suitable for being fixedly connected to one end of the longitudinal beam; the guide rod is suitable for being slidably connected to the third longitudinal beam along the first direction; one end of the distance rod is connected to the mounting block, and the other end is connected to the guide rod; the hinge is arranged on the distance rod, and the crossbeam is hinged to the hinge to realize the rotatable connection between the crossbeam and the longitudinal beam; the distance between the guide rod and the mounting block is adjusted and fixed by the distance rod, so that the rotation angle of the crossbeam and the longitudinal beam is locked.

[0018] According to some embodiments of the utility model, the distance rod includes an elastic member for reducing the impact on the hinge point between the cross beam and the longitudinal beam; the elastic member is arranged between the guide rod and the hinge, and / or the elastic member is arranged between the mounting block and the hinge.

[0019] The bogie according to the second embodiment of the utility model is briefly described below.

[0020] The bogie according to the utility model comprises the guide structure described in any one of the above embodiments. Since the bogie according to the utility model is provided with the guide structure described in the above embodiments, the structure of the bogie is simpler.

[0021] The following briefly describes a rail vehicle according to an embodiment of the third aspect of the utility model.

[0022] The rail vehicle according to the utility model comprises the bogie described in any one of the above embodiments. Since the rail vehicle according to the utility model is provided with the bogie described in the above embodiments, the rail vehicle can travel on a variety of road surfaces, and the rail vehicle has more usage scenarios.

[0023] To sum up, according to the guide structure of the utility model, a rotatable frame is provided, and the spacing between the first guide wheel and the second guide wheel in the first direction can be adjusted by rotating the rotatable frame to achieve a variety of spacing states of the rotatable frame. The spacing between the first guide wheel and the second guide wheel in the first direction can be adjusted without the participation of other driving structures such as cylinders and electric push rods or complex transmission structures such as gear racks. The overall number of components is small, the structure is simpler, and the cost of the guide structure can be reduced.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a schematic diagram of the overall structure of the guide structure according to some embodiments of the utility model.

[0027] Figure 2 It is a schematic diagram of the structure of a rotatable frame according to some embodiments of the utility model.

[0028] Figure 3 yes Figure 2 Schematic diagram of the structure after the size of the structure in the first direction is changed.

[0029] Figure 4 It is an exploded view of the local structure of a rotatable frame according to some embodiments of the utility model.

[0030] Figure 5 It is a schematic structural diagram of a rotatable frame according to other embodiments of the utility model.

[0031] Figure 6 It is a schematic diagram of the locking rod structure according to other embodiments of the utility model.

[0032] Figure 7 It is a schematic structural diagram of a rotatable frame according to some other embodiments of the utility model.

[0033] Figure 8 It is a schematic diagram of the structure of the distance rod according to some embodiments of the utility model.

[0034] Fig. 9 It is a schematic diagram of a rotatable frame structure according to an embodiment of the utility model.

[0035] Fig.10 It is a schematic diagram of a rotatable frame structure according to an embodiment of the utility model.

[0036] Reference numerals:

[0037] 1. Bogie;

[0038] 10. Axle; 11. Traveling wheel;

[0039] 20. rotatable frame; 21. first guide wheel; 22. second guide wheel; 200. steering wheel;

[0040] 23. third longitudinal beam; 23a. first locking hole;

[0041] 24a, second locking hole; 24b, fourth locking hole; 241, first crossbeam; 2411, first rotating rod; 2412, second rotating rod; 242, second crossbeam; 2421, third rotating rod; 2422, fourth rotating rod;

[0042] 251, first longitudinal beam; 252, second longitudinal beam; 25a, third locking hole;

[0043] 24. Moving rod; 25. Elastic member; 26. Guide rod; 27. Mounting block; 28. Distance rod; 29. ​​Articulated member; 290. Fixed block;

[0044] 31. spline shaft; 32. locking rod; 321. screw rod; 3222. vibration damping member; 3223. hinge mounting seat. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In the related art, rail vehicles are generally provided with a frame, on which guide wheels are provided, and the travel wheels are guided by the cooperation between the guide wheels and the track beams, and the spacing between the left and right guide wheels is a fixed value and cannot be adjusted. In some existing technologies, the spacing between the left and right guide wheels is adjusted by the linear motion of the driving mechanism and the transmission mechanism, which has many parts, a complex structure and a high cost.

[0051] Reference below Figure 1-Figure 10 A guide structure for a rail vehicle according to an embodiment of the present utility model is described.

[0052] like Figure 1As shown, the guide structure for a rail vehicle according to the utility model is connected to the vehicle chassis and includes: a rotatable frame 20, a first guide wheel group and a second guide wheel group; wherein the rotatable frame 20 connects the first guide wheel group and the second guide wheel group spaced apart along a first direction; the first guide wheel group has at least two first guide wheels 21 spaced apart along the second direction; the second guide wheel group has at least two second guide wheels 22 spaced apart along the second direction; the first direction intersects with the second direction; the rotatable frame 20 is rotated to adjust the spacing between the first guide wheel group and the second guide wheel group in the first direction.

[0053] Specifically, the rail vehicle can travel along the extension direction of the rail beam, and the guide wheel extends into the guide groove of the rail beam to contact the guide surface. The guide wheel is suitable for driving the running wheel 11 to rotate when the rail vehicle turns, so that the rail vehicle has a tendency to turn. Since the width of the guide groove of the rail beam is different, in order to enable the rail vehicle to adapt to guide grooves of different widths, the rotatable frame 20 is designed as a rotatable structure to adjust the distance between the first guide wheel group and the second guide wheel group in the first direction. The first direction can be consistent with the width direction of the rail vehicle. The distance between the first guide wheel group and the second guide wheel group in the first direction is adjusted so that the first guide wheel group and the second guide wheel group can contact the guide surface in the guide groove of different widths, thereby improving the versatility of the rail vehicle provided with the guide structure, so that the rail vehicle can travel on a variety of rail beams, and increase the use scenarios of the rail vehicle. In addition, the wear of the guide wheel in use leads to a reduction in the outer diameter, so that the guide spacing between the guide wheel and the rail beam becomes larger, which affects the stability of the vehicle. The guide structure designed by the utility model can also be used to adjust the spacing of the guide wheels, extend the service life of the guide wheels, and improve the stability of the vehicle.

[0054] According to the guide structure of the present invention, the spacing between the first guide wheel group and the second guide wheel group in the first direction is adjusted by rotating the rotatable frame 20. No other driving structure or transmission structure is required to adjust the spacing between the first guide wheel group and the second guide wheel group in the first direction. The number of overall components is small, the structure is simpler, and the cost of the guide structure can be reduced.

[0055] According to some embodiments of the present invention, the guide structure further includes at least one set of locking devices, which are used to lock the rotation of the rotatable frame 20 to fix the spacing between the first guide wheel group and the second guide wheel group in the first direction, thereby preventing the rotatable frame 20 from rotating during the actual operation of the rail vehicle and ensuring that the position of the guide wheels is fixed. Figure 2-Figure 7In the embodiment shown, when the rotatable frame 20 rotates to a preset position, the rotatable frame 20 is locked by a locking device to prevent the rotatable frame 20 from continuing to rotate. The guide structure designed according to the utility model is provided with a locking device, and the guide wheel spacing can be fixed with fewer parts, and the number of locking devices can be selected according to actual needs. Multiple locking devices can increase the reliability of locking the guide wheel spacing.

[0056] In some embodiments, Fig.10 As shown, the rotatable frame 20 includes two cross-arranged motion rods 24, the intersection of the two motion rods 24 is hinged and the ends of the two motion rods 24 are connected to guide wheels. Specifically, the same side ends of the two motion rods 24 in the first direction are respectively connected to the two first guide wheels 21, and the other same side ends of the two motion rods 24 in the first direction are respectively connected to the two second guide wheels 22. The two motion rods 24 can rotate relative to each other to change the spacing between the first guide wheel group and the second guide wheel group in the first direction. The locking device is arranged at the intersection of the two motion rods 24, so as to lock the two motion rods 24 after the two motion rods 24 are rotated into place, so as to fix the spacing between the first guide wheel group and the second guide wheel group in the first direction, avoid the rotation of the rotatable frame 20 during the actual operation of the rail vehicle, and ensure that the position of the guide wheels is fixed.

[0057] According to some embodiments of the utility model, the rotatable frame 20 includes at least two cross beams and at least two longitudinal beams, the longitudinal beams extend along the second direction, the second direction may be consistent with the length direction of the vehicle, two adjacent longitudinal beams are arranged at intervals along the first direction, two adjacent cross beams are arranged at intervals and are rotatably connected to the two ends of the two longitudinal beams, and the cross beams and the longitudinal beams are rotatably connected to adjust the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction. Through the rotatable connection between the cross beam and the longitudinal beam, a variety of spacing states of the rotatable frame can be achieved, thereby changing the spacing between the left and right guide wheels, simplifying the overall structure of the guide structure, reducing the parts of the guide structure, and reducing the cost of the guide structure.

[0058] Furthermore, in some embodiments, the cross beam and the longitudinal beam can be controlled by mechanical structure and program to rotate relative to each other during the movement of the rail vehicle to adjust the spacing between the first guide wheel and the second guide wheel in the first direction. In other embodiments, the cross beam and the longitudinal beam can be manually rotated relative to each other when the rail vehicle is parked to adjust the spacing between the first guide wheel and the second guide wheel in the first direction.

[0059] According to some embodiments of the utility model, the longitudinal beam includes a first longitudinal beam 251, a second longitudinal beam 252 and a third longitudinal beam 23, and the third longitudinal beam 23 is located between the first longitudinal beam 251 and the second longitudinal beam 252; the cross beam includes a first cross beam 241 and a second cross beam 242, and the two ends of the first cross beam 241 are rotatably connected to the same side ends of the first longitudinal beam 251 and the second longitudinal beam 252, respectively, and the two ends of the second cross beam 242 are rotatably connected to the other same side ends of the first longitudinal beam 251 and the second longitudinal beam 252; one end of the third longitudinal beam 23 is rotatably connected to the first cross beam 241, and the other end of the third longitudinal beam 23 is rotatably connected to the second cross beam 242, and the third longitudinal beam 23 is suitable for connecting to the vehicle chassis to connect the rotatable frame 20 to the vehicle chassis.

[0060] Specifically, please refer to Figure 2 and Figure 3 ,exist Figure 2 In the embodiment, the extending direction of the first cross beam 241 and the second cross beam 242 is consistent with the first direction, and the first guide wheel 21 and the second guide wheel 22 are opposite to each other in the first direction. Figure 2 Adjust to Figure 3 In the middle state, the first cross beam 241 and the second cross beam 242 rotate relative to the third longitudinal beam 23 to intersect with the first direction, and at this time, the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction is reduced.

[0061] In some embodiments, the third longitudinal beam 23 is rotatably connected to the middle portion of the first cross beam 241 and the second cross beam 242 .

[0062] In some embodiments, Figure 2 As shown, a steering wheel 200 is provided on the third longitudinal beam 23 to be rotatably connected to the axle 10 .

[0063] In some embodiments, the third longitudinal beam 23 is rotatably connected to the first longitudinal beam 251 and the second longitudinal beam 252 , respectively.

[0064] According to some embodiments of the utility model, the first cross beam 241 includes a first rotating rod 2411 and a second rotating rod 2412, and the second cross beam 242 includes a third rotating rod 2421 and a fourth rotating rod 2422; one end of the first rotating rod 2411 is rotatably connected to one end of the first longitudinal beam 251, and the other end is rotatably connected to one end of the third longitudinal beam 23; one end of the second rotating rod 2412 is rotatably connected to one end of the second longitudinal beam 252, and the other end is rotatably connected to one end of the third longitudinal beam 23; one end of the third rotating rod 2421 is rotatably connected to the other end of the first longitudinal beam 251, and the other end is rotatably connected to the other end of the third longitudinal beam 23; one end of the fourth rotating rod 2422 is rotatably connected to the other end of the second longitudinal beam 252, and the other end is rotatably connected to the other end of the third longitudinal beam 23.

[0065] In some embodiments, the first rotating rod 2411, the second rotating rod 2412, the third rotating rod 2421 and the fourth rotating rod 2422 rotate relative to the first longitudinal beam 251, the second longitudinal beam 252 and the third longitudinal beam 23, so that the distance between the first longitudinal beam 251, the second longitudinal beam 252 and the third longitudinal beam 23 in the first direction changes, thereby changing the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction.

[0066] According to some embodiments of the present invention, Figure 2-Figure 4 As shown, a first locking hole 23a is formed on the third longitudinal beam 23, and a second locking hole 24a corresponding to the first locking hole 23a is provided on the first crossbeam 241 and / or the second crossbeam 242; wherein the locking device is constructed as a spline shaft 31 and cooperates with the first locking hole 23a and the second locking hole 24a respectively to limit the rotation of the crossbeam relative to the longitudinal beam. Specifically, when the third longitudinal beam 23 and the crossbeam are adjusted to the right position, the spline shaft 31 is respectively penetrated with the first locking hole 23a and the second locking hole 24a to lock the third longitudinal beam 23 with the first crossbeam 241 and / or the second crossbeam 242 to prevent the third longitudinal beam 23 and the crossbeam from rotating relative to each other. And because the length of the crossbeam is a fixed value, when the third longitudinal beam 23 is locked with the crossbeam, the first longitudinal beam 251 and the second longitudinal beam 252 connected thereto will not move anymore. At this time, the spline shaft 31 cooperates with the first locking hole 23a and the second locking hole 24a respectively to limit the rotation of the crossbeam relative to the longitudinal beam.

[0067] In some embodiments, the outer surface of the spline shaft 31 is formed with a tooth portion extending in the axial direction, and the tooth portion is configured as a plurality of teeth and the plurality of teeth are arranged at intervals on the outer surface of the spline shaft 31 in the circumferential direction. The inner walls of the first locking hole 23a and the second locking hole 24a are both provided with meshing teeth extending in the axial direction, and the meshing teeth are configured as a plurality of teeth and the plurality of meshing teeth are arranged at intervals on the inner walls of the first locking hole 23a and the inner walls of the second locking hole 24a in the circumferential direction. After determining the angle between the third longitudinal beam 23 and the cross beam, the first locking hole 23a and the second locking hole 24a are coaxially arranged and the spline shaft 31 is inserted. At this time, the spline shaft 31 can ensure that the third longitudinal beam 23 is tightly connected to the cross beam and prevent the third longitudinal beam 23 from rotating relative to the cross beam.

[0068] In some embodiments, Figure 3 As shown, the end of the third longitudinal beam 23 is rotatably connected to the middle part of the cross beam. The first locking hole 23a can be located at the end of the third longitudinal beam 23, and the second locking hole 24a can be located at the middle part of the cross beam.

[0069] In some embodiments, the number of teeth of the spline shaft 31 and the number of meshing teeth in the first locking hole 23a and the second locking hole 24a are determined by the running state of the rail vehicle and the range of spacing adjustment, and the number of teeth of the spline shaft 31 and the adjustment spacing correspond one to one, and the calculation formula is: Δd = (1-cosθ)*L, where θ = 360 / m, Δd is the guide wheel adjustment spacing, L is the spacing in the first direction between the first guide wheel 21 and the second guide wheel 22 connected to the same crossbeam, and m is the number of teeth of the spline shaft 31.

[0070] When adjusting the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction, it is only necessary to pull out the spline shaft 31, and then adjust the position of the cross beam relative to the third longitudinal beam 23, so that the spline shaft 31 is rotated by a corresponding number of teeth and then the spline shaft 31 is inserted, so that the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction can be finely adjusted.

[0071] According to some embodiments of the present invention, Figure 2-Figure 4 As shown, the first longitudinal beam 251 and / or the second longitudinal beam 252 are provided with a third locking hole 25a, and the first cross beam 241 and / or the second cross beam 242 are provided with a fourth locking hole 24b corresponding to the third locking hole 25a; the locking device is configured as a spline shaft 31 and cooperates with the third locking hole 25a and the fourth locking hole 24b respectively to limit the rotation of the cross beam relative to the longitudinal beam. In some embodiments, as Figure 3 , Figure 4 As shown, the third longitudinal beam 23 is rotatably connected to the middle part of each cross beam, where the first locking hole 23a is located at the end of the third longitudinal beam 23, and the second locking hole 24a is located at the middle part of the cross beam. The first locking hole 23a and the second locking hole 24a can be connected by a circular shaft pin to ensure that the third longitudinal beam 23 is rotatably connected to each cross beam. The two ends of a single cross beam are connected to the first longitudinal beam 251 and the second longitudinal beam 252, and the fourth locking hole 24b on each cross beam and the third locking hole 25a on the longitudinal beam are connected by a spline shaft 31 to lock the longitudinal beam and the cross beam to prevent the longitudinal beam and the cross beam from rotating relative to each other.

[0072] In some embodiments, during the shape adjustment process of the rotatable frame 20 , the third longitudinal beam 23 , the first longitudinal beam 251 , and the second longitudinal beam 252 always remain parallel.

[0073] In some embodiments, the size of the rotatable frame 20 is changed to be suitable for increasing the distance between the first guide wheel 21 and the second guide wheel 22 in the second direction while reducing the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction. Figure 2In this state, the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction is the largest, and the distance between the first guide wheel 21 and the second guide wheel 22 in the second direction is zero. Figure 3 In the state, compared with Figure 2 In the state, the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction is reduced, and the distance between the first guide wheel 21 and the second guide wheel 22 in the second direction is increased.

[0074] By adjusting the shape of the rotatable frame 20, the size of the rotatable frame 20 in the first direction can be adjusted, thereby adjusting the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction, and, Figure 2 , Figure 3 , Figure 5 , Figure 7 In the several embodiments shown, the size of the rotatable frame 20 in the first direction can be adjusted simply by adjusting the shape of the rotatable frame 20 itself, without adding or reducing any additional structure. The number of overall parts of the guide structure is limited, and the operation is more convenient and the adjustment is faster.

[0075] It is understandable that when the rail vehicle is traveling, if the first guide wheel 21 and the second guide wheel 22 are arranged side by side in the second direction, that is, the spacing between the first guide wheel 21 and the second guide wheel 22 in the second direction is zero, then the first guide wheel 21 and the second guide wheel 22 will contact the guide surface at the same location of the rail beam at the same time, and there is a possibility of resonance between the first guide wheel 21 and the second guide wheel 22. Therefore, the rotatable frame 20 is designed to be a structure that can drive the first guide wheel 21 and the second guide wheel 22 to stagger in the second direction, which can avoid the resonance of the first guide wheel 21 and the second guide wheel 22, realize vibration reduction of the rail vehicle, and improve driving comfort. In addition, the staggering of the first guide wheel 21 and the second guide wheel 22 in the second direction can also make greater use of space and improve space utilization.

[0076] According to some embodiments of the present invention, Figure 5-Figure 7 As shown, the locking device is constructed as a locking rod 32, and the locking rod 32 is provided with a first connection end and a second connection end, the first connection end is hinged to a longitudinal beam or a transverse beam, and the second connection end is hinged to other longitudinal beams or other transverse beams, and the distance between the first connection end and the second connection end can be changed. Specifically, the locking rod 32 is adjusted in position or length to adjust the relative position of the first connection end and the second connection end, thereby adjusting the relative position of the longitudinal beam and the transverse beam. After the relative position of the longitudinal beam and the transverse beam is determined, the position or length of the locking rod 32 remains unchanged to lock the longitudinal beam and the transverse beam to prevent the longitudinal beam and the transverse beam from rotating relative to each other.

[0077] According to some embodiments of the present invention, Figure 5-Figure 6 As shown, the locking rod 32 includes a screw portion 321 and an adjusting nut, one end of the screw portion 321 is configured as a first connection end; the adjusting nut is movably disposed on the screw portion 321 and configured as a second connection end. In some embodiments, the adjusting nut is sleeved on the other end of the screw portion 321 and is threadedly connected to the screw portion 321, and the adjusting nut is rotated to increase or decrease the length of the screw portion 321 located between the crossbeam and the longitudinal beam. One end of the screw portion 321 is hingedly connected to the crossbeam to rotate relative to the crossbeam, and the adjusting nut is hingedly connected to the longitudinal beam to rotate relative to the longitudinal beam. When the shape of the rotatable frame 20 needs to be adjusted, the adjusting nut can be moved to change the position of the adjusting nut relative to the screw portion 321, thereby changing the relative position of the crossbeam and the longitudinal beam. When the position of the adjusting nut relative to the screw portion 321 is determined, the relative position of the crossbeam and the longitudinal beam is also determined, and the crossbeam and the longitudinal beam will no longer rotate relative to each other.

[0078] That is to say, when it is necessary to adjust the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction, loosen the adjusting nut and move the adjusting nut on the screw portion 321 to adjust the angle between the crossbeam and the longitudinal beam, thereby fine-tuning the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction. After the adjustment is completed, tighten the adjusting nut to fix the adjusting nut on the screw portion 321.

[0079] According to some embodiments of the present invention, Figure 6 As shown, the guide structure for the rail vehicle also includes a vibration reduction structure, which is arranged between the first connection end and the second connection end to reduce the vibration between the first connection end and the second connection end, thereby reducing the vibration transmitted from the guide wheel to the rotatable frame 20. In some embodiments, the vibration reduction structure includes a vibration reduction member 3222 and a hinge mounting seat 3223, an adjustment nut is sleeved on the outer periphery of the screw portion 321 and is threadedly matched with the screw portion 321; one end of the vibration reduction member 3222 is connected to the adjustment nut, and the vibration reduction member 3222 can effectively attenuate the vibration of the guide wheel caused by road excitation during operation; the hinge mounting seat 3223 is arranged at the other end of the vibration reduction member 3222 and is suitable for connecting with another hinge in the longitudinal beam and the cross beam.

[0080] In some embodiments, two adjusting nuts are sleeved on the screw portion 321 .

[0081] In some embodiments, the vibration dampening member 3222 is configured as a spring.

[0082] According to some embodiments of the present invention, Figure 7As shown, the locking device includes a distance rod 28, a guide rod 26, a mounting block 27 and a hinge 29; the mounting block 27 is suitable for being fixedly connected to one end of the longitudinal beam; the guide rod 26 is suitable for being slidably connected to the third longitudinal beam 23 along a first direction; one end of the distance rod 28 is connected to the mounting block 27, and the other end is connected to the guide rod 26; the hinge 29 is arranged on the distance rod 28, and the crossbeam is hinged to the hinge 29 to realize the rotatable connection between the crossbeam and the longitudinal beam; the spacing between the fixed guide rod 26 and the mounting block 27 is adjusted by the distance rod 28 to lock the rotation angle of the crossbeam and the longitudinal beam.

[0083] In some embodiments, the guide rod 26 can be moved along the extension direction of the distance rod 28 to change the relative position of the guide rod 26 and the part of the longitudinal beam where the mounting block 27 is provided, thereby changing the position of the hinge 29 and further changing the rotation angle of the crossbeam. By fixing the distance between the guide rod 26 and the mounting block 27 by the distance rod 28, the rotation angle of the crossbeam and the longitudinal beam can be locked, thereby realizing the adjustment of the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction.

[0084] In some embodiments, a fixing block 290 is provided on the distance rod 28 . After the guide rod 26 moves along the extension direction of the distance rod 28 , the guide rod 26 can be fixed to the distance rod 28 by the fixing block 290 , thereby locking the guide rod 26 .

[0085] According to some embodiments of the present invention, Figure 8 As shown, the distance rod 28 includes an elastic member 25 for reducing the impact on the hinge point between the cross beam and the longitudinal beam; the elastic member 25 is arranged between the guide rod 26 and the hinge 29, and / or the elastic member 25 is arranged between the mounting block 27 and the hinge 29 to reduce the vibration between the guide rod 26 and the hinge 29 and / or reduce the vibration between the mounting block 27 and the hinge 29, thereby reducing the vibration transmitted between the cross beam and the longitudinal beam, so that the guide structure works stably.

[0086] The bogie according to the utility model is briefly described below.

[0087] The bogie according to the utility model includes the guide structure described in any one of the above embodiments. In some embodiments, the bogie includes an axle 10 and a rotatable frame 20, the axle 10 is provided with a running wheel 11; the rotatable frame 20 is provided on the axle 10, and the rotatable frame 20 is provided with a first guide wheel 21 and a second guide wheel 22 arranged at intervals in the first direction; wherein the width of the rotatable frame 20 is adjustable to adjust the distance between the first guide wheel 21 and the second guide wheel 22 in the first direction. Since the bogie according to the utility model is provided with the guide structure described in the above embodiment, the structure of the bogie is simpler.

[0088] The rail vehicle according to the utility model is briefly described below.

[0089] The rail vehicle according to the utility model comprises the bogie described in any one of the above embodiments. Since the rail vehicle according to the utility model is provided with the bogie described in the above embodiments, the rail vehicle can travel on a variety of road surfaces, and the rail vehicle has more usage scenarios.

[0090] To summarize, according to the guide structure of the present invention, a rotatable frame 20 is provided, and the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction can be adjusted through the rotating connection between the structures of the rotatable frame 20, so as to realize a variety of spacing states of the rotatable frame 20. Without the participation of other driving structures such as cylinders and electric push rods or complex transmission structures such as gear racks, the spacing between the first guide wheel 21 and the second guide wheel 22 in the first direction can be adjusted. The overall number of parts is small, the structure is simpler, and the cost of the guide structure can be reduced.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0092] Although embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. A guide structure for a rail vehicle, connected to a vehicle chassis, characterized in that: include: A rotatable frame (20), a first guide wheel set and a second guide wheel set; in The rotatable frame (20) is connected to the first guide wheel group and the second guide wheel group which are arranged at intervals along a first direction; The first guide wheel group is provided with at least two first guide wheels (21) spaced apart along the second direction; The second guide wheel group is provided with at least two second guide wheels (22) spaced apart along the second direction; The first direction intersects the second direction; The rotatable frame (20) is rotated to adjust the distance between the first guide wheel group and the second guide wheel group in the first direction.

2. The guide structure for a rail vehicle according to claim 1, characterized in that: It also comprises at least one set of locking devices, which are used to lock the rotation of the rotatable frame (20) to fix the spacing between the first guide wheel group and the second guide wheel group in the first direction.

3. The guide structure for a rail vehicle according to claim 2, characterized in that: The rotatable frame (20) comprises: at least two cross beams and at least two longitudinal beams, the longitudinal beams extending along the second direction, two adjacent longitudinal beams being spaced apart along the first direction, two adjacent cross beams being spaced apart and rotatably connected to both ends of the two longitudinal beams, respectively, and the cross beams and the longitudinal beams being rotatably connected to adjust the spacing between the first guide wheel (21) and the second guide wheel (22) in the first direction.

4. The guide structure for a rail vehicle according to claim 3, characterized in that: The longitudinal beam comprises a first longitudinal beam (251), a second longitudinal beam (252) and a third longitudinal beam (23), wherein the third longitudinal beam (23) is located between the first longitudinal beam (251) and the second longitudinal beam (252); The cross beam comprises a first cross beam (241) and a second cross beam (242), wherein two ends of the first cross beam (241) are rotatably connected to the same side ends of the first longitudinal beam (251) and the second longitudinal beam (252), respectively, and two ends of the second cross beam (242) are rotatably connected to the other same side ends of the first longitudinal beam (251) and the second longitudinal beam (252); One end of the third longitudinal beam (23) is rotatably connected to the first cross beam (241), and the other end of the third longitudinal beam (23) is rotatably connected to the second cross beam (242). The third longitudinal beam (23) is suitable for connecting to a vehicle chassis to connect the rotatable frame (20) to the vehicle chassis.

5. The guide structure for a rail vehicle according to claim 4, characterized in that: The first crossbeam (241) includes a first rotating rod (2411) and a second rotating rod (2412), and the second crossbeam (242) includes a third rotating rod (2421) and a fourth rotating rod (2422); One end of the first rotating rod (2411) is rotatably connected to one end of the first longitudinal beam (251), and the other end is rotatably connected to one end of the third longitudinal beam (23); One end of the second rotating rod (2412) is rotatably connected to one end of the second longitudinal beam (252), and the other end is rotatably connected to one end of the third longitudinal beam (23); One end of the third rotating rod (2421) is rotatably connected to the other end of the first longitudinal beam (251), and the other end is rotatably connected to the other end of the third longitudinal beam (23); One end of the fourth rotating rod (2422) is rotatably connected to the other end of the second longitudinal beam (252), and the other end is rotatably connected to the other end of the third longitudinal beam (23).

6. The guide structure for a rail vehicle according to claim 4, characterized in that: The third longitudinal beam (23) is formed with a first locking hole (23a), and the first cross beam (241) and / or the second cross beam (242) are provided with a second locking hole (24a) corresponding to the first locking hole (23a); wherein The locking device is configured as a spline shaft (31) and is respectively matched with the first locking hole (23a) and the second locking hole (24a) to limit the rotation of the cross beam relative to the longitudinal beam.

7. The guide structure for a rail vehicle according to claim 4 or 6, characterized in that: The first longitudinal beam (251) and / or the second longitudinal beam (252) are provided with a third locking hole (25a), and the first cross beam (241) and / or the second cross beam (242) are provided with a fourth locking hole (24b) corresponding to the third locking hole (25a); wherein The locking device is configured as a spline shaft (31) and is respectively matched with the third locking hole (25a) and the fourth locking hole (24b) to limit the rotation of the cross beam relative to the longitudinal beam.

8. The guide structure for a rail vehicle according to claim 3, characterized in that: The locking device is constructed as a locking rod (32), on which a first connecting end and a second connecting end are arranged, the first connecting end is hinged to a longitudinal beam or a transverse beam, the second connecting end is hinged to other longitudinal beams or other transverse beams, and the distance between the first connecting end and the second connecting end can be changed.

9. The guide structure for a rail vehicle according to claim 8, characterized in that: The locking rod (32) comprises: A screw portion (321), one end of the screw portion (321) being configured as the first connecting end; An adjusting nut, wherein the adjusting nut is movably arranged on the screw rod portion (321) and is configured as the second connecting end.

10. The guide structure for a rail vehicle according to claim 9, characterized in that: Also includes: A vibration-damping structure is arranged between the first connecting end and the second connecting end.

11. The guide structure for a rail vehicle according to claim 4, characterized in that: The locking device comprises a distance rod (28), a guide rod (26), a mounting block (27) and a hinge (29); The mounting block (27) is suitable for being fixedly connected to one end of the longitudinal beam; The guide rod (26) is suitable for being slidably connected to the third longitudinal beam (23) along the first direction; One end of the distance rod (28) is connected to the mounting block (27), and the other end is connected to the guide rod (26); The hinge (29) is arranged on the distance rod (28), and the cross beam is hinged to the hinge (29) to realize the rotatable connection between the cross beam and the longitudinal beam; The spacing between the guide rod (26) and the mounting block (27) is adjusted and fixed by the spacing rod (28), so that the rotation angles of the cross beam and the longitudinal beam are locked.

12. The guide structure for a rail vehicle according to claim 11, characterized in that: The distance rod (28) comprises an elastic member (25) for reducing the impact on the hinge point between the cross beam and the longitudinal beam; The elastic member (25) is arranged between the guide rod (26) and the hinge member (29), and / or the elastic member (25) is arranged between the mounting block (27) and the hinge member (29).

13. A bogie (1) for a rail vehicle, characterized in that: The invention comprises a guide structure for a rail vehicle according to any one of claims 1 to 12.

14. A rail vehicle, characterized in that: Comprising a bogie (1) for a rail vehicle according to claim 13.

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