AU2013362665B2

AU2013362665B2 - Railway freight car bogie and railway freight car

Info

Publication number: AU2013362665B2
Application number: AU2013362665A
Authority: AU
Inventors: Yanghai HOU; Haibin Hu; Lidong LI; Yunfei LING; Zhenming Liu; Wendong Shao; Shuming Xing; Shanchao XU
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2012-12-19
Filing date: 2013-05-22
Publication date: 2015-08-27
Anticipated expiration: 2033-05-22
Also published as: CN103010245B; NZ702176A; AU2013362665A1; CN103010245A; WO2014094409A1

Abstract

A railway freight car bogie, comprising two side frames (101) arranged in parallel and two connecting rods (104); after the connecting rods (104) cross each other, the two ends are respectively connected to the two side frames (101); an installation positioning face is disposed below a triangular hole in the side frame (101); a conical column positioning hole is disposed on the installation positioning face; a retaining shoulder (102) is disposed on the installation positioning face and on the outer side of the conical column positioning hole; a conical column (105) is inserted in the conical column positioning hole; the gap (103) between the conical column (105) and the retaining shoulder (102) is welded by filling. Also disclosed is a railway freight car having the railway freight car bogie.

Description

English Translation of PCT/CN2013/076039 RAILWAY FREIGHT CAR BOGIE AND RAILWAY FREIGHT CAR [0001] The present application claims the benefit of priority to Chinese Patent Application No. 201210555966.2 entitled "RAILWAY WAGON BOGIE AND RAILWAY WAGON", filed with the Chinese State Intellectual Property Office on December 19, 2012, the entire 5 disclosure of which is incorporated herein by reference. TECHNICAL FIELD [0002] The present application relates to the technical field of railway wagons, and particularly to a railway wagon bogie and a railway wagon. BACKGROUND 10 [0003] A railway wagon, as a wheel-rail vehicle, generally includes a vehicle body, a bogie, a braking device, a coupler buffer device and etc.. The bogie is used for supporting the vehicle body and guiding the vehicle to travel along the rails, and is subjected to various loads from the vehicle body and the rails. A common bogie on the railway wagon is a steel-cast three-piece biaxial bogie, which includes one swing bolster, two side frames, two wheel sets, 15 a spring damping device and a braking device. [0004] The three-piece bogie has a small anti-lozenge-distortion rigidity and does not have a high critical speed. In view of defects of the three-piece bogie, various improvement solutions are proposed, one of which provides a cross braced three-piece bogie. In this bogie, elastic cross connecting rods are additionally arranged between the two side frames, so as to 20 increase the resistant to dislocation of the two side frames and increase the anti-lozenge-distortion rigidity of the bogie. [0005] In the conventional technology, a railway wagon bogie, which is an intermediate cross braced bogie, includes wheel sets 11, side frames 13, a swing bolster, a damping device, a braking device, a spring, an adaptor, a cross braced device and etc.. Two connecting rods 12 25 crossed in an X shape pass through performed holes at an abdominal part of the swing bolster. Two ends of each of the connecting rods 12 are elastically connected to the two side frames 13, thereby forming a four-bar mechanism. Two ends of each of the side frames 13 are -1- English Translation of PCT/CN2013/076039 supported on the wheel sets 11 through an axle box rubber cushion and the adaptor. The anti-lozenge-distortion rigidity of the bogie is increased by arranging a pair of connecting rods 12 between the two side frames 13, thereby improving the dynamic characteristic of the vehicle. 5 [0006] As shown in Figure 3, in order to connect the cross rods to the side frames, a connecting seat 14 is required to be welded on the side frame. The connecting seat includes one tapered column 141, one seat plate 142 and two rib plates (143, 144), and a welding structure is adopted between the various parts of the connecting seat 14 and between the connecting seat 14 and the side frame 13. This structure has following defects. 10 [0007] (1) This structure has a low strength. The seat plate 142 at the end portion of the cross connecting rod 12 uses a cantilevered welding structure, the fatigue strength of a welding seam is lower than that of the metal body, and further the space where the connecting seat is mounted is limited, thus the seat plate cannot have a large length and the rib plate cannot have a great height, which leads to a low strength of the structure between the 15 connecting seat and the side frame. [0008] (2) This structure has a large prestressing force. The welding structure is adopted between various parts, thus there are many welding seams which are intensively intersected, and the structural prestressing force caused by the welding is large, and during use, an external force is combined with the prestressing force, which results in a large local stress. 20 [0009] (3) It is difficult to guarantee the manufacturing quality. Since the welding operation is inconvenient to perform, it is difficult to guarantee the quality of the welding seam. And, since the assembly is inconvenient, spatial three-dimensional positions of the tapered column 141 are prone to be inaccurate, which results in that, after the cross connecting rods are mounted, the two side frames cannot form a desirable rectangular shape, i.e. the position of 25 the bogie is incorrect, which is prone to cause uneven wear of wheels of the same bogie. [0010] (4) The strength of the side frame is reduced. The connecting seat is arranged outside the side frame, thus the cross connecting rod has to pass through a triangular hole of the side frame, and in order to avoid interference with the connecting rod, an arc at an outer lower portion of the triangular hole cannot be designed to have a large radius, which reduces 30 the strength of the side frame. -2- [0011] (5) The anti-lozenge-distortion rigidity of the bogie is reduced. The connecting seat is arranged outside the side frame and the cross connecting rod is long, thus a compression-resisting instability critical force of the cross connecting rod is reduced, which indirectly reduces the anti-lozenge-distortion rigidity of the bogie. 5 [0012] (6) The structure occupies a large space. The total width of the bogie is increased due to the connecting seat, thus for some vehicles with narrower clearance, the bogie has a great design difficulty. [0013] (7) The maintenance is inconvenient. The tapered column is welded on the seat plate and the seat plate is welded on the side frame, thus it is inconvenient to replace the part when 0 the threads are damaged. [0014] Therefore, a technical problem to be solved presently by those skilled in the art is how to avoid the defects of low structural strength and large prestressing force which are caused by welding connection. [0015] It is desired to provide a railway wagon bogie that alleviates one or more difficulties 5 of the prior art, or to at least provide a useful alternative. SUMMARY [0016] Paragraph deleted [0017] Paragraph deleted [0018] In accordance with some embodiments of the present invention, there is provided a 20 railway wagon bogie that includes two side frames arranged in parallel to each other and two connecting rods, the two connecting rods are crossed and two ends of each of the two connecting rods are connected to the two side frames, respectively; an installation positioning surface is provided below a triangular hole of each of the side frames, and the installation positioning surface is provided with a tapered column positioning hole; 25 a retaining shoulder is provided on the installation positioning surface outside the tapered column positioning hole, a tapered column is inserted in the tapered column positioning hole, and a gap between the tapered column and the retaining shoulder is welded by filling; a resilient bushing is sleeved on an end of the tapered column that protrudes out of the -3tapered column positioning hole; an installation hole for mounting an end of the connecting rod is sleeved on the resilient bushing; and the end of the tapered column that protrudes out is provided with an axially limiting 5 device for preventing the connecting rod from being disengaged. [0019] Preferably, in the railway wagon bogie, at least two retaining shoulders are provided, and a gap is provided between each two adjacent retaining shoulders. [0020] Preferably, in the railway wagon bogie, two retaining shoulders are provided and each has an arc structure. 0 [0021] Preferably, in the railway wagon bogie, the retaining shoulder is perpendicular to the installation positioning surface. [0022] Preferably, in the railway wagon bogie, the tapered column is provided with a shaft shoulder, the shaft shoulder cooperates with an end surface of the tapered column positioning hole, and a gap between the shaft shoulder and the retaining shoulder is welded by filling. 5 [0023] Preferably, in the railway wagon bogie, the retaining shoulder is higher than or lower than the shaft shoulder of the tapered column. [0024] Preferably, in the above railway wagon bogie, the resilient bushing is a tapered bushing and cooperates with a tapered shaft segment of the tapered column. [0025] Preferably, in the railway wagon bogie, the axially limiting device includes: 20 a pressing cap configured to press the connecting rod and sleeved on the tapered column; and a nut configured to press the pressing cap and in screw-threaded engagement with the tapered column. [0026] Preferably, in the railway wagon bogie, the tapered column is provided with a 25 locking pin hole, and a locking pin passes the locking pin hole to prevent the nut from reversely rotating. [0027] In accordance with some embodiments of the present invention, there is provided a railway wagon including a bogie, wherein the bogie is any one of the above railway wagon bogies. -4- English Translation of PCT/CN2013/076039 [0028] Based on the above technical solutions, the railway wagon bogie according to the present application has the following technical effects. [0029] (1) The present application solves the problem in the conventional technology that the structure has a low strength. Individual connecting nodes in the conventional technology 5 each have a welding structure, and due to the welding connection, the fatigue strength of a welding seam is lower than that of the metal body, and further the space where the connecting seat is mounted is limited, thus the seat plate cannot have a large length and the rib plate cannot have a great height, which leads to a low strength of the structure between the connecting seat and the side frame. The technical solution of the present application only has 10 one welding structure, i.e. the gap between the tapered column and the retaining shoulder is welded by filling. Compared with the traditional seam welding, the filling welding, i.e. the plug welding, has a greatly improved fatigue strength. Due to the filing welding, the tapered column as a main stressed part may be made of a material with a high strength, thus the strength of this structure is much higher than the strength of the structure in the conventional 15 technology. [0030] (2) The present application solves the problem in the conventional technology that the structure has a large prestressing force. In the conventional technology, the connection nodes adopt the welding structure, thus there are many welding seams which are intensively intersected, and the structural prestressing force caused by the welding at the welding seam is 20 large, and during use, an external force is combined with the prestressing force, which results in a large local stress. The technical solution of the present application only has one welding structure, which is the filling welding structure, thus the problem that the structure has a large prestressing force will not occur. [0031] (3) The present application solves the problem in the conventional technology that it 25 is difficult to guarantee the manufacturing quality. Since the welding operation is inconvenient to perform, it is difficult to guarantee the quality of the welding seam; and, since the assembly is inconvenient, spatial three-dimensional positions of the tapered column are prone to be inaccurate, which results in that, after the cross connecting rods are mounted, the two side frames cannot form a desirable rectangular shape, i.e. the position of the bogie is 30 incorrect, which is prone to cause uneven wear of wheels of the same bogie. The technical solution of the present application only has one welding structure, and no other parts are -5 - English Translation of PCT/CN2013/076039 mounted on the side frame, and only a hole is formed at a preset position on the side frame by drilling or reaming, thus it is easier to ensure the size and the position of the hole, which may ensure that the cross braced device has an accurate position, and the two side frames may form the desirable rectangular shape, i.e. the position of the bogie is correct, thereby avoiding 5 uneven wear of wheels of the same bogie. [0032] (4) The present application solves the problem in the conventional technology that the strength of the side frame is reduced. In the conventional technology, the connecting seat is arranged outside the side frame, thus the cross connecting rod has to pass through a triangular hole of the side frame, and in order to avoid interference with the connecting rod, 10 an arc at an outer lower portion of the triangular hole cannot be designed to have a large radius, which reduces the strength of the side frame. In the technical solution of the present application, the end of the connecting rod does not completely pass through the triangular hole, thus the arc at the outer lower portion of the triangular hole can be designed to have a large radius, which may avoid stress concentration at this position, thereby enhancing the 15 strength of the side frame. [0033] (5) The anti-lozenge-distortion rigidity of the bogie may be further increased. In the conventional technology, the connecting seat is arranged outside the side frame and the cross connecting rod is long, thus a compression-resisting instability critical force of the cross connecting rod is reduced, which indirectly reduces the anti-lozenge-distortion rigidity of the 20 bogie. In the technical solution of the present application, the length of the connecting rod may be shortened to a certain extent, which increases the compression-resisting instability critical force, thereby increasing the anti-lozenge-distortion rigidity of the bogie. [0034] (6) The present application solves the problem that the structure in the conventional technology occupies a large space. In the conventional technology, the total width of the bogie 25 is increased since the connecting seat is arranged outside the side frame, thus for some vehicles with narrower clearance, the bogie has a great design difficulty. In the technical solution of the present application, the connecting node is of a built-in type, which uses an internal cavity of the side frame which is idle previously, thus no additional space is occupied, and it adapts to the vehicle with the narrower clearance. 30 [0035] (7) The present application solves the problem in the conventional technology that the maintenance is inconvenient. In the technical solution of the present application, the shaft -6shoulder and a cylinder at a lower portion of the tapered column are used for positioning, and the tapered column and the retaining shoulder of the side frame are welded by two separated welding seams, thus when the tapered column wears or the threads thereof are damaged, the tapered column may be removed by gas-cutting, and then a new tapered column may be 5 welded after the side frame is repaired. BRIEF DESCRIPTION OF THE DRAWINGS [0036] For more clearly illustrating embodiments of the present application or the technical solution in the conventional technology, drawings referred to describe the embodiments or the conventional technology will be briefly described hereinafter. Apparently, the drawings in the 0 following description are only several embodiments of the present invention, by way of example only, and for the person skilled in the art other drawings may be obtained based on these drawings without any creative efforts. [0037] Figure 1 is a schematic view showing the structure of an intermediate cross braced bogie in the conventional technology; 5 [0038] Figure 2 is a top view of a side frame in the conventional technology; [0039] Figure 3 is a front view of the side frame in the conventional technology; [0040] Figure 4 is a schematic view showing the structure of a railway wagon bogie according to an embodiment of the present application; [0041] Figure 5 is a schematic view showing the structure of a side frame according to the 20 embodiment of the present application; [0042] Figure 6 is a schematic view showing a partial structure of the side frame according to the embodiment of the present application; [0043] Figure 7 is a partial enlarged view of the side frame according to the embodiment of the present application; and 25 [0044] Figure 8 is a partial sectional view of an installation node of the bogie according to the embodiment of the present application. DETAILED DESCRIPTION -7- [0045] Described herein is a railway wagon bogie that avoids the defects of low structural strength and large prestressing force which are caused by welding connection. [0046] Also described herein is a railway wagon having the railway wagon bogie. [0047] The technical solutions in the embodiments of the present application will be 5 described clearly and completely hereinafter in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments described herein, all of other embodiments, made by the person skilled in the art without any creative efforts, fall into the scope of the present application. 0 [0048] Reference is made to Figures 4 to 8. Figure 4 is a schematic view showing the structure of a railway wagon bogie according to an embodiment of the present application; Figure 5 is a schematic view showing the structure of a side frame according to the embodiment of the present application; Figure 6 is a schematic view showing a partial structure of the side frame according to the embodiment of the present application; Figure 7 is 5 a partial enlarged view of the side frame according to the embodiment of the present application; and Figure 8 is a partial sectional view of an installation node of the bogie according to the embodiment of the present application. [0049] The railway wagon bogie according to the embodiment of the present application includes two side frames 101 arranged in parallel to each other and two connecting rods 104. 20 The two connecting rods 104 are crossed and then two ends of each of the connecting rods 104 are connected to the two side frames 101, respectively. An installation positioning surface is provided below a triangular hole of each of the side frames 101. The installation positioning surface is provided with a tapered column positioning hole which may be processed by a boring machine. A depth of the tapered column positioning hole is not required to be very 25 large, as long as a good strength can be ensured by plug welding process after a tapered column 105 is inserted into the tapered column positioning hole. [0050] A retaining shoulder 102 is arranged on the installation positioning surface outside the tapered column positioning hole. The retaining shoulder 102 may be integrally formed with the side frame 101 by casting. The tapered column 105 is inserted in the tapered column 30 -8 - English Translation of PCT/CN2013/076039 positioning hole. A gap 103 between the tapered column 105 and the retaining shoulder 102 is welded by filling (i.e., the plug welding). [0051] A resilient bushing 106 is sleeved on an end of the tapered column 105 that protrudes out of the tapered column positioning hole. An installation hole for an end portion 5 of the connecting rod 104 is sleeved on the resilient bushing 106. The protruding end of the tapered column 105 is provided with an axially limiting device for preventing the connecting rod 104 from being disengaged. [0052] The railway wagon bogie according to the present application has the following technical effects. 10 [0053] (1) The present application solves the problem in the conventional technology that the structure has a low strength. Individual connecting nodes in the conventional technology each have a welding structure, and due to the welding connection, the fatigue strength of a welding seam is lower than that of the metal body, and further the space where the connecting seat is mounted is limited, thus the seat plate cannot have a large length and the rib plate 15 cannot have a great height, which leads to a low strength of the structure between the connecting seat and the side frame. The technical solution of the present application only has one welding structure, i.e. the gap between the tapered column and the retaining shoulder is welded by filling. Compared with the traditional seam welding, the filling welding, i.e. the plug welding, has a greatly improved fatigue strength. Due to the filing welding, the tapered 20 column as a main stressed part may be made of a material with a high strength, thus the strength of this structure is much higher than the strength of the structure in the conventional technology. [0054] (2) The present application solves the problem in the conventional technology that the structure has a large prestressing force. In the conventional technology, the connection 25 nodes adopt the welding structure, thus there are many welding seams which are intensively intersected, and the structural prestressing force caused by the welding at the welding seam is large, and during use, an external force is combined with the prestressing force, which results in a large local stress. The technical solution of the present application only has one welding structure, which is the filling welding structure, thus the problem that the structure has a large 30 prestressing force will not occur. [0055] (3) The present application solves the problem in the conventional technology that it -9- English Translation of PCT/CN2013/076039 is difficult to guarantee the manufacturing quality. Since the welding operation is inconvenient to perform, it is difficult to guarantee the quality of the welding seam; and, since the assembly is inconvenient, spatial three-dimensional positions of the tapered column are prone to be inaccurate, which results in that, after the cross connecting rods are mounted, the 5 two side frames cannot form a desirable rectangular shape, i.e. the position of the bogie is incorrect, which is prone to cause uneven wear of wheels of the same bogie. The technical solution of the present application only has one welding structure, and no other parts are mounted on the side frame, and only a hole is formed at a preset position on the side frame by drilling or reaming, thus it is easier to ensure the size and the position of the hole, which may 10 ensure that the cross braced device has an accurate position, and the two side frames may form the desirable rectangular shape, i.e. the position of the bogie is correct, thereby avoiding uneven wear of wheels of the same bogie. [0056] (4) The present application solves the problem in the conventional technology that the strength of the side frame is reduced. In the conventional technology, the connecting seat 15 is arranged outside the side frame, thus the cross connecting rod has to pass through a triangular hole of the side frame, and in order to avoid interference with the connecting rod, an arc at an outer lower portion of the triangular hole cannot be designed to have a large radius, which reduces the strength of the side frame. In the technical solution of the present application, the end of the connecting rod does not completely pass through the triangular 20 hole, thus the arc at the outer lower portion of the triangular hole can be designed to have a large radius, which may avoid stress concentration at this position, thereby enhancing the strength of the side frame. [0057] (5) The anti-lozenge-distortion rigidity of the bogie may be further increased. In the conventional technology, the connecting seat is arranged outside the side frame and the cross 25 connecting rod is long, thus a compression-resisting instability critical force of the cross connecting rod is reduced, which indirectly reduces the anti-lozenge-distortion rigidity of the bogie. In the technical solution of the present application, the length of the connecting rod may be shortened to a certain extent, which increases the compression-resisting instability critical force, thereby increasing the anti-lozenge-distortion rigidity of the bogie. 30 [0058] (6) The present application solves the problem that the structure in the conventional technology occupies a large space. In the conventional technology, the total width of the bogie - 10 - English Translation of PCT/CN2013/076039 is increased since the connecting seat is arranged outside the side frame, thus for some vehicles with narrower clearance, the bogie has a great design difficulty. In the technical solution of the present application, the connecting node is of a built-in type, which uses an internal cavity of the side frame which is idle previously, thus no additional space is occupied, 5 and it adapts to the vehicle with the narrower clearance. [0059] (7) The present application solves the problem in the conventional technology that the maintenance is inconvenient. In the technical solution of the present application, the shaft shoulder and a cylinder at a lower portion of the tapered column are used for positioning, and the tapered column and the retaining shoulder of the side frame are welded by two separated 10 welding seams, thus when the tapered column wears or the threads thereof are damaged, the tapered column may be removed by gas-cutting, and then a new tapered column may be welded after the side frame is repaired. [0060] In order to further optimize the above technical solutions, in an embodiment of the present application, at least two retaining shoulders 102 are provided, and a gap is provided 15 between each two adjacent retaining shoulders 102. By providing the gap between the retaining shoulders, a higher strength may be ensured after the plug welding is performed. [0061] Two retaining shoulders 102 are arranged and each has an arc structure. It should be understood by those skilled in the art that, any other number of the retaining shoulders 102 may be provided, and the retaining shoulder may be in a rectangular shape or other shapes, 20 and the shape and the number of the retaining shoulder 102 are not limited in the present application. [0062] In an embodiment of the present application, the retaining shoulder 102 is perpendicular to the installation positioning surface. It should be understood by those skilled in the art that, the retaining shoulder 102 may be arranged at different angles with respect to 25 the installation positioning surface. [0063] In an embodiment of the present application, a shaft shoulder is arranged on the tapered column 105. The shaft shoulder cooperates with an end surface of the tapered column positioning hole. A gap 103 between the shaft shoulder and the retaining shoulder 102 is welded by filling. The retaining shoulder 102 may be higher than or lower than the shaft 30 shoulder of the tapered column 105, and may also be flush with the shaft shoulder of the tapered column 105. - 11 - English Translation of PCT/CN2013/076039 [0064] In an embodiment of the present application, the resilient bushing 106 is a tapered bushing and cooperates with a tapered shaft segment of the tapered column 105. [0065] In order to further optimize the above technical solutions, in an embodiment of the present application, the axially limiting device includes a pressing cap 108 and a nut 107. 5 [0066] The pressing cap 108 for pressing the connecting rod 104 is sleeved on the tapered column 105, and the nut 107 for pressing the pressing cap 108 is in screw-threaded engagement with the tapered column 105. After the nut 107 is screwed tightly, the nut 107 tightly presses the pressing cap 108, and the pressing cap 108 in turn tightly presses the connecting rod 104. 10 [0067] In order to avoid looseness, in the embodiment of the present application, the tapered column 105 is provided with a locking pin hole, and a locking pin passes though the locking pin hole to prevent the nut 107 from reversely rotating, thereby preventing looseness. [0068] A railway wagon is further provided according to the present application, which includes a bogie. The bogie is the railway wagon bogie described in the above embodiments. 15 Since the railway wagon includes the above railway wagon bogie, the railway wagon has all the technical effects of the above railway wagon bogie, which will not be described herein. [0069] The above embodiments are described in a progressive manner. Each of the embodiments is mainly focused on describing its differences from other embodiments, and references may be made among these embodiments with respect to the same or similar 20 portions among these embodiments. [0070] Based on the above description of the above described embodiments, the person skilled in the art is capable of carrying out or using the present application. It is obvious for the person skilled in the art to make many modifications to these embodiments. Therefore, the present application is not limited to the embodiments illustrated herein, and the scope of the 25 present application is defined by the claims. - 12 - [0071] Throughout this specification and claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. 5 [0072] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in 0 the field of endeavour to which this specification relates. - 12A-

Claims

1. A railway wagon bogie, comprising two side frames arranged in parallel to each other and two connecting rods, the two connecting rods being crossed and two ends of each of the 5 two connecting rods being connected to the two side frames, respectively, wherein, an installation positioning surface is provided below a triangular hole of each of the side frames, and the installation positioning surface is provided with a tapered column positioning hole; a retaining shoulder is provided on the installation positioning surface outside the tapered column positioning hole, a tapered column is inserted in the tapered column positioning hole, 10 and a gap between the tapered column and the retaining shoulder is welded by filling; a resilient bushing is sleeved on an end of the tapered column that protrudes out of the tapered column positioning hole; an installation hole for mounting an end of the connecting rod is sleeved on the resilient bushing; and 15 the end of the tapered column that protrudes out is provided with an axially limiting device for preventing the connecting rod from being disengaged.

2. The railway wagon bogie according to claim 1, wherein at least two retaining shoulders are provided, and a gap is provided between each two adjacent retaining shoulders. 20

3. The railway wagon bogie according to claim 2, wherein two retaining shoulders are provided and each has an arc structure.

4. The railway wagon bogie according to claim 1, wherein the retaining shoulder is 25 perpendicular to the installation positioning surface.

5. The railway wagon bogie according to any one of claims 1 to 4, wherein the tapered column is provided with a shaft shoulder, the shaft shoulder cooperates with an end surface of the tapered column positioning hole, and a gap between the shaft shoulder and the retaining - 13 - English Translation of PCT/CN2013/076039 shoulder is welded by filling.

6. The railway wagon bogie according to claim 5, wherein the retaining shoulder is higher than or lower than the shaft shoulder of the tapered column. 5

7. The railway wagon bogie according to claim 1, wherein the resilient bushing is a tapered bushing and cooperates with a tapered shaft segment of the tapered column.

8. The railway wagon bogie according to claim 5, wherein the axially limiting device 10 comprises: a pressing cap configured to press the connecting rod and sleeved on the tapered column; and a nut configured to press the pressing cap and in screw-threaded engagement with the tapered column. 15

9. The railway wagon bogie according to claim 8, wherein the tapered column is provided with a locking pin hole, and a locking pin passes the locking pin hole to prevent the nut from reversely rotating. 20

10. A railway wagon, comprising a bogie, wherein the bogie is the railway wagon bogie according to any one of claims 1 to 9. - 14 -