A guide wheel protective cover for rail vehicles

Abstract

The present invention relates to the technical field of rail vehicles, and in particular, provides a guide wheel protective cover for rail vehicles, comprising an upper protective cover and a lower protective cover connected to a bogie frame, wherein the upper protective cover is rotatably connected to the bogie frame through a connecting assembly and can be opened and closed up and down; the upper protective cover comprises a side drainage platform and a top drainage platform, wherein the side drainage platform and the top drainage platform are respectively arranged to be tilted downward toward both sides of the guide wheel; the lower protective cover is located below the top drainage platform and is arranged to be tilted and extended toward the outer side of the guide wheel toward a side away from the side drainage platform; the accumulated water on the side drainage platform flows downward to the outer side of the guide wheel, and the accumulated water on the top drainage platform first flows downward to the lower protective cover, and then flows into the outer side of the guide wheel from the side away from the side drainage platform through the lower protective cover. The protective cover in the present invention can prevent the guide wheel and the bogie frame from being corroded and damaged, and can improve the performance and service life of the guide wheel and the bogie frame.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, and in particular to a guide wheel protective cover for rail vehicles. Background Art

[0002] Rail vehicles include maglev trains, skyrail vehicles, suspended vehicles, etc. During the operation of the vehicle, especially when the vehicle passes through a curve, in order to prevent the vehicle body from swinging too much to the left and right or tilting, guide wheels are usually set on the bogie frame to guide the vehicle body, so as to improve the stability and safety of the vehicle body operation and the comfort of passengers.

[0003] During the long-term use of rail vehicles, dust and water are easily accumulated on the guide wheels and the bogie frame connected to them, which in turn causes corrosion and damage to the guide wheels and the bogie frame, seriously affecting the wear resistance of the guide wheels, increasing the maintenance cost of the guide wheels, and reducing the performance of the guide wheels and the bogie frame. Therefore, how to design a guide wheel protective cover that can prevent water and dust accumulation on the guide wheels and the bogie frame is an urgent problem to be solved. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a guide wheel protective cover for rail vehicles, including an upper protective cover and a lower protective cover, which can prevent the guide wheel and the bogie frame from being corroded and damaged by accumulated water and dust, improve the wear resistance of the guide wheel, and increase the service life of the guide wheel and the bogie frame.

[0005] To achieve the above-mentioned purpose, the present invention proposes the following technical scheme: a guide wheel protective cover for a rail vehicle, comprising an upper protective cover and a lower protective cover connected to the bogie frame, the upper protective cover being rotatably connected to the bogie frame through a connecting assembly and being able to be opened and closed up and down; the upper protective cover comprising a side drainage area and a top drainage area located above the side drainage area, the side drainage area and the top drainage area respectively comprising a side drainage platform and a top drainage platform, the side drainage platform and the top drainage platform are respectively arranged to be inclined downward toward both sides of the guide wheel; the lower protective cover is located below the top drainage platform and is arranged to be inclined and extended toward the outer side of the guide wheel toward a side away from the side drainage platform; the accumulated water on the side drainage platform flows downward into the outer side of the guide wheel, and the accumulated water on the top drainage platform first flows downward into the lower protective cover, and then flows into the outer side of the guide wheel from the side away from the side drainage platform through the lower protective cover.

[0006] Preferably, the inner end face 1 of the upper protective cover close to the bogie frame is a straight structure perpendicular to the upper end face 1 of the guide wheel, and the side drainage area and the top drainage area are both extended from the inner end face 1 toward the side away from the bogie frame; the top drainage platform is extended from the upper end of the inner end face 1 toward the oblique upward direction, and the top drainage area also includes a top connecting platform extended downward from the end of the top drainage platform away from the inner end face 1; the side drainage platform is connected to the lower end of the top connecting platform, and the side drainage area also includes a side connecting platform arranged at the lower end of the side drainage platform; the top connecting platform and the side drainage platform are both arc-shaped structures protruding away from the inner side surface.

[0007] Preferably, the angle α between the arc top of the top connecting platform and the upper end surface of the guide wheel is greater than the angle β between the arc top of the side drainage platform and the upper end surface of the guide wheel; the lower end of the side connecting platform is located above the side edge of the guide wheel.

[0008] Preferably, the inner end face 2 of the lower protective cover away from the bogie frame is located below the top drainage platform and at one-third to one-half of the top drainage platform; the upper end face 2 of the lower protective cover is an inclined structure that tilts downward from the upper end of the inner end face 2 toward the outer side of the guide wheel, and the side end of the lower protective cover away from the inner end face 2 is located above the side edge 2 of the guide wheel away from the side drainage area.

[0009] Preferably, the upper and lower ends of the top drainage platform are respectively provided with anti-shrinkage groove 1 and anti-shrinkage groove 2, and the anti-shrinkage groove 1 is located in the middle away from the top connecting platform; the lower end of the top drainage platform is also provided with a reinforcing rib 1; the top drainage platform and the top connecting platform are also provided with a clearance groove.

[0010] Preferably, the second inner end surface of the lower protective cover includes a concave section that is concave toward the bogie frame; and the lower end of the second upper end surface of the lower protective cover is provided with a second reinforcing rib.

[0011] Preferably, the connecting assembly includes an upper connecting member and a lower connecting member, and the central axes of the upper connecting member and the lower connecting member are arranged perpendicularly to the upper end surface of the guide wheel; the upper protective cover is driven to open toward the bogie frame or close toward the guide wheel through the upper connecting member, and when the upper protective cover is closed, the upper protective cover is clamped through the lower connecting member.

[0012] Preferably, the upper connecting member includes a connecting shaft rotatably connected to the upper protective cover and a support frame fixed on the connecting shaft, and both ends of the connecting shaft extend to the clearance groove; an elastic clamping member is provided on the support frame, and when the upper protective cover is closed, a clamping force is provided by the elastic clamping member, and when the upper protective cover is opened, an auxiliary tension is provided by the elastic clamping member.

[0013] Preferably, the elastic clamping member is connected between the connecting shaft 1 and the supporting frame 1, and the elastic clamping member includes a lower supporting spring sheet and an upper opening and closing spring sheet located at the upper end of the lower supporting spring sheet; the upper opening and closing spring sheet is an overall multi-arc surface segment structure, and the lower supporting spring sheet is matched and arranged at the lower part of the upper opening and closing spring sheet.

[0014] Preferably, the lower connecting member includes a second support frame, which includes a bottom bracket and an upper bracket vertically arranged at the upper end of the bottom bracket; a clamping sleeve is connected to the upper bracket, and the clamping sleeve includes two symmetrically arranged clamping plates, which include a supporting section with a straight surface structure and a clamping section with a multi-arc surface section structure; a second connecting shaft is provided on the upper protective cover and the second connecting shaft can be clamped or opened in the clamping sleeve to cooperate with the opening and closing operation of the upper protective cover.

[0015] The beneficial effects of the present invention are:

[0016] 1. The upper protective cover of the present invention includes a top drainage platform, a top connecting platform, a side drainage platform and a side connecting platform. A part of the accumulated water and dust is discharged toward one side of the guide wheel through the top drainage platform, and another part of the accumulated water and dust is discharged toward the other side of the guide wheel through the side drainage platform. This can ensure that the accumulated water and dust above the guide wheel are completely discharged, avoid corrosion and damage to the guide wheel and the bogie frame, save maintenance costs, and improve the use performance and safety performance of the guide wheel.

[0017] 2. The lower protective cover in the present invention is arranged in cooperation with the top drainage platform, which can ensure that the accumulated water and dust flowing down from the top drainage platform are completely discharged to the outside of the guide wheel, further improving the use quality and service life of the guide wheel and the bogie frame.

[0018] 3. The upper connecting member and the lower connecting member in the present invention can ensure a stable connection between the upper protective cover and the bogie frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the guide wheel, bogie frame and protective cover provided in an embodiment of the present invention.

[0020] Figure 2 The overall structure diagram of the guide wheel protective cover (upper protective cover) and its connection structure provided in an embodiment of the present invention is shown in FIG. Figure 1 .

[0021] Figure 3 The overall structure diagram of the guide wheel protective cover (upper protective cover) and its connection structure provided in an embodiment of the present invention is shown in FIG. Figure 2 .

[0022] Figure 4 The structure of the upper connecting member provided by the embodiment of the present invention is shown in FIG. Figure 1 .

[0023] Figure 5The structure of the upper connecting member provided by the embodiment of the present invention is shown in FIG. Figure 2 .

[0024] Figure 6 It is a schematic structural diagram of an elastic fastening member provided in an embodiment of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the support ear provided in an embodiment of the present invention.

[0026] Figure 8 The structure of the lower connecting member provided by the embodiment of the present invention is shown in FIG. Figure 1 .

[0027] Fig. 9 The structure of the lower connecting member provided by the embodiment of the present invention is shown in FIG. Figure 2 (Connecting shaft two is not shown).

[0028] Fig.10 It is a schematic structural diagram of a lower protective cover provided in an embodiment of the present invention.

[0029] Figure numerals: 1, upper protective cover; 2, lower protective cover; 3, bogie frame; 4, guide wheel; 5, side drainage area; 6, top drainage area; 7, side drainage platform; 8, top drainage platform; 9, inner end surface one; 10, top connecting platform; 11, side connecting platform; 12, upper end surface one; 13, upper end surface two; 14, inner end surface two; 15, side edge one; 16, side edge two; 17, anti-shrinkage groove one; 18, give way groove; 19, concave section; 20, reinforcing rib two; 21, upper connecting piece; 22, lower connecting piece; 23, connecting shaft one; 24, support frame one; 25, upper opening and closing spring piece; 26, lower supporting spring piece; 27, support frame two; 28, bottom bracket; 29, upper bracket ; 30. Clamping piece; 31. Support section; 32. Clamping section; 33. Elastic fastening member; 34. Clamping sleeve; 35. Upper support frame; 36. Lower support frame; 37. Side support plate; 38. Support ear; 39. Upper convex arc section; 40. Lower concave arc section one; 41. Lower convex arc section one; 42. Lower straight surface section one; 43. Lower concave arc section two; 44. Lower convex arc section two; 45. Lower straight surface section two; 46. Main bracket; 47. Side bracket; 48. Connecting platform; 49. Accommodating groove; 50. Connecting column; 51. Earring; 52. Connecting shaft two; 53. Anti-interference groove; 54. Arc surface section one; 55. Arc surface section two; 56. Arc surface section three; 57. Bottom vertical section; 58. Upper inclined section; 59. Mounting plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following Figure 1-10It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0031] A guide wheel protective cover for a rail vehicle, such as Figure 1 As shown, it includes an upper protective cover 1 and a lower protective cover 2 connected to the bogie frame 3, the upper protective cover 1 is rotatably connected to the bogie frame 3 through a connecting assembly and can be opened and closed up and down; the lower protective cover 2 is fixedly connected to the bogie frame 3 through bolts; the inner end face 9 of the upper protective cover 1 close to the bogie frame 3 is a straight surface structure perpendicular to the upper end face 12 of the guide wheel 4, the upper protective cover 1 includes a side drainage area 5 and a top drainage area 6 located on the upper part of the side drainage area 5, and the side drainage area 5 and the top drainage area 6 are both extended from the inner end face 9 to the side away from the bogie frame 3.

[0032] The side drainage area 5 and the top drainage area 6 include a side drainage platform 7 and a top drainage platform 8, respectively. The side drainage platform 7 and the top drainage platform 8 are respectively arranged to be inclined downward toward both sides of the guide wheel 4; the top drainage platform 8 is formed by extending from the upper end of the inner end surface 9 toward the oblique upper direction, and the top drainage area 6 also includes a top connecting platform 10 formed by extending downward from the end of the top drainage platform 8 on the side away from the inner end surface 9; the side drainage platform 7 is connected to the lower end of the top connecting platform 10, and the side drainage area 5 also includes a side connecting platform 11 arranged at the lower end of the side drainage platform 7; the top connecting platform 10 and the side drainage platform 7 are both arc-shaped structures protruding away from the inner side surface, so as to facilitate the discharge of accumulated water and dust.

[0033] The lower protective cover 2 is located below the top drainage platform 8 and is inclined and extended toward the outer side of the guide wheel 4 on the side away from the side drainage platform 7. The accumulated water on the side drainage platform 7 flows downward into the outer side of the guide wheel 4, and the accumulated water on the top drainage platform 8 first flows downward into the lower protective cover 2, and then flows into the outer side of the guide wheel 4 from the side away from the side drainage platform 7 through the lower protective cover 2; the accumulated water and dust on the side drainage platform 7 and the top drainage platform 8 are respectively discharged toward the two sides of the guide wheel 4, further enhancing the dispersion and discharge capabilities of the accumulated water and dust, preventing the accumulated water and dust from corroding the guide wheel 4 and the bogie frame 5, so as to improve the service life and performance of the guide wheel 4 and the bogie frame 5.

[0034] like Figure 1As shown, the angle α between the arc top of the top connecting platform 10 and the upper end surface 12 of the guide wheel 4 is greater than the angle β between the arc top of the side drainage platform 7 and the upper end surface 12 of the guide wheel 4, which facilitates the accumulation of water and dust at the top connecting platform 10 to fall and be discharged to the outside of the guide wheel 4 along the side drainage platform 7; the lower end of the side connecting platform 11 is located above the side edge 15 of the guide wheel 4, and the side edge 15 is inclined downward, that is, the lower end of the side connecting platform 11 will not be arranged above the upper end surface 12 of the guide wheel 4, so as to ensure that the accumulated water and dust on the upper protective cover 1 are directly discharged to the outside of the guide wheel 4 along the side edge 15 and will not fall on the upper end surface 12 of the guide wheel 4, and the lower end of the side connecting platform 11 will not be arranged on the side edge 15, that is, the outside of the guide wheel 4, so as to avoid interference with the guide rail.

[0035] The inner end face 2 14 of the lower protective cover 2 away from the bogie frame 3 is located below the top drainage platform 8 and at one-third to one-half of the top drainage platform 8, so as to ensure that the accumulated water and dust on the top drainage platform 8 can completely fall onto the lower protective cover 2 and avoid falling onto the upper end face 12 of the guide wheel 4; the upper end face 13 of the lower protective cover 2 is an inclined structure inclined downward from the upper end of the inner end face 14 toward the outer side of the guide wheel 4, and the side end of the lower protective cover 2 away from the inner end face 14 is located above the side edge 2 16 of the guide wheel 4 away from the side drainage area 5, so as to ensure that the accumulated water and dust on the upper protective cover 1 are directly discharged to the outer side of the guide wheel 4 along the side edge 2 16 and will not fall onto the upper end face 12 of the guide wheel 4, and can avoid interference with the guide rail.

[0036] The upper and lower ends of the top drainage platform 8 are respectively provided with an anti-shrinkage groove 1 17 and an anti-shrinkage groove 2. The anti-shrinkage groove 1 17 is located in the middle away from the top connecting platform 10. The anti-shrinkage groove 1 17 and the anti-shrinkage groove 2 prevent the upper protective cover 1 from shrinking during use, thereby increasing the service life of the upper protective cover 1; a reinforcing rib 1 is also provided at the lower end of the top drainage platform 8 to improve the supporting force and structural quality of the upper protective cover 1; a clearance groove 18 is also provided on the top drainage platform 8 and the top connecting platform 10 to provide space for the connection between the upper protective cover 1 and the upper connecting piece 21.

[0037] The inner end surface 14 of the lower protective cover 2 includes a concave section 19 that is concave toward the bogie frame 3, which can avoid interference between the bogie frame 5 and the lower protective cover 2 and the upper protective cover 1; Fig.10 As shown, a reinforcing rib 20 is provided at the lower end of the upper end surface 13 of the lower protective cover 2 to improve the structural support stability of the lower protective cover 2.

[0038] like Figure 3As shown, the connecting assembly includes an upper connecting member 21 and a lower connecting member 22, and the central axes of the upper connecting member 21 and the lower connecting member 22 are both arranged perpendicularly to the upper end surface 12 of the guide wheel 4; the upper protective cover 1 is driven to open toward the bogie frame 3 or close toward the guide wheel 4 through the upper connecting member 21, and when the upper protective cover 1 is closed, the upper protective cover 1 is clamped through the lower connecting member 22.

[0039] like Figure 2-5 As shown, the upper connecting member 21 includes a connecting shaft 23 rotatably connected to the upper protective cover 1, a support frame 24 fixed below the connecting shaft 23, and an elastic fastening member 33 located between the connecting shaft 23 and the support frame 24. The elastic fastening member 33 is connected between the connecting shaft 23 and the support frame 24, and both ends of the connecting shaft 23 extend to the clearance groove 18; Figure 4 , 5 As shown, the support frame 24 includes an upper support frame 35, a lower support frame 36 and a side support plate 37 connected between the upper support frame 35 and the lower support frame 36, and the side support plate 37 is located on the side ends of the upper support frame 35 and the lower support frame 36 away from the connecting shaft 23; the lower support frame 36 is provided with an anti-interference groove 53 to avoid interference with the bogie frame 5.

[0040] The side support plate 37 is inclined from top to bottom along the side end of the upper support frame 35 toward the side end of the lower support frame 51; the upper support frame 35 includes a main bracket 46 and a side bracket 47 symmetrically connected to the two side ends of the main bracket 46, and the upper part of the side support plate 37 extends outward with a connecting platform 48, and the free end of the side bracket 47 is connected to the connecting platform 48. The connecting platform can increase the frame space of the upper support frame 35 to avoid interference. At the same time, it can enhance the reliability of the connection between the side bracket 47 and the side support plate 37; the side support plate 37, the upper support frame 35 and the lower support frame 51 can improve the connection stability of the upper protective cover 1, and can avoid interference between the upper protective cover 1 and the lower protective cover 2 and the bogie frame 5.

[0041] like Figure 4 and Figure 7 As shown, a support ear 38 with an ear hole is provided on the upper support frame 35, and a connecting shaft 23 is inserted into the ear hole; the elastic fastening member 33 is located on the upper support frame 35 and is located on the side of the support ear 38; the support ear 38 includes a connecting column 50 fixed on the main bracket 46 and an earring 51 located on the connecting column 50, and the ear hole is formed by the inner hole of the earring 51; the support ears 38 include at least two and are arranged on both sides of the elastic fastening member 33; the connecting shaft 23 is vertically arranged with the upper end surface 12 of the guide wheel 4, the connecting shaft 23 is inserted into the ear hole of the earring 51 in the support frame 24, and the two ends of the connecting shaft 23 are mounted in the connecting hole group 1 of the protective cover, and the support frame 24 is connected to the bogie frame 3 away from the lower support frame 36 of the connecting shaft 23.

[0042] like Figure 4 and Figure 6 As shown, the elastic clamping member 33 includes a lower supporting spring piece 26 and an upper opening and closing spring piece 25 of a multi-arc surface segment combination structure; the lower supporting spring piece 26 and the upper opening and closing spring piece 25 are both fixed on the upper supporting frame 35 and the upper opening and closing spring piece 25 is located at the upper end of the lower supporting spring piece 26; the overall length of the upper opening and closing spring piece 25 is 2-4 times the overall length of the lower supporting spring piece 26, which can not only provide the supporting force of the lower supporting spring piece 26 on the upper opening and closing spring piece 25, but also prevent the supporting force from being too large and causing the rigidity of the upper opening and closing spring piece 25 to be too large, thereby ensuring the clamping force and auxiliary opening and closing force of the upper opening and closing spring piece 25 on the upper protective cover 1.

[0043] The upper opening and closing spring piece 25 includes, from top to bottom, an upper convex arc segment 39, a lower concave arc segment 40 and a lower convex arc segment 41, and the lower convex arc segment 41 is connected to the upper support plate through a lower straight surface segment 42; the lower support spring piece 26 includes a lower concave arc segment 43 and a lower convex arc segment 44, and the lower concave arc segment 43 and the lower convex arc segment 44 are respectively matched and connected to the lower ends of the lower concave arc segment 40 and the lower convex arc segment 41, and the lower convex arc segment 44 is connected to the upper support plate through a lower straight surface segment 45; the upper convex arc segment 39, the lower convex arc segment 41 and the lower concave arc segment 43 are all protruding toward the side away from the lower support frame 51, and the lower concave arc segment 40 and the lower concave arc segment 43 are both protruding toward the lower support frame 51. When the upper protective cover 1 contacts with the upper opening and closing spring piece 25, the upper protective cover 1 just contacts with the upper convex arc segment 39 of the convex upward protective cover 1, so as to realize the pressing force and auxiliary opening and closing force of the upper opening and closing spring piece 25 on the upper protective cover 1; a receiving groove 49 is provided in the middle of the main bracket 46, and the upper opening and closing spring piece 25 and the lower supporting spring piece 26 are arranged at the receiving groove 49. When the upper protective cover 1 is closed, the upper opening and closing spring piece 25 and the lower supporting spring piece 26 are pressed downward, and at this time, the receiving groove 49 can provide a receiving space for the upper opening and closing spring piece 25 and the lower supporting spring piece 26.

[0044] like Figure 2 , 8 As shown in Figure 9, the lower connecting member 22 includes a connecting shaft 252, a support frame 27 located below the connecting shaft 52, and a clamping sleeve 34 fixed on the support frame 27; both ends of the connecting shaft 52 are mounted in the connecting hole group 2 of the upper protective cover 1; the support frame 27 includes a bottom bracket 28 and an upper bracket 29 vertically supported on the bottom bracket 28; the bottom bracket 28 in the support frame 27 away from the connecting shaft 52 is connected to the bogie frame 3; the upper protective cover 1 can be clamped or opened in the clamping sleeve 34 through the connecting shaft 52.

[0045] The upper bracket 29 includes a bottom vertical section 57 connected to the bottom bracket 28 and an upper inclined section 58 located on the side of the bottom vertical section 57 away from the bottom bracket 28. The upper inclined section 58 is inclined from the end of the bottom vertical section 57 toward the side away from the connecting shaft 2 52 to increase the connection space and avoid interference. A mounting plate 59 is provided at the end of the arc surface section 1 54, and the clamping sleeve 34 is fixed to the upper inclined section 58 through the mounting plate 59. When the clamping sleeve 34 needs to be repaired or replaced, it can be achieved by disassembling or loading and unloading the mounting plate 59, which is simple and quick and can reduce costs.

[0046] like Figure 8 , 9 As shown, the clamping sleeve 34 includes two symmetrically arranged clamping plates 30, and the clamping plates 30 include a support segment 31 of a straight surface structure and a clamping segment 32 of a multi-arc surface segment structure in sequence from the support frame 27 toward the outside; the support segment 31 is connected to the support frame 27 through the arc surface segment 1 54, and the arc surface segment 1 54 can increase the telescopic space of the clamping plate 30; the upper protective cover 1 can be clamped or opened in the clamping segment 32 through the connecting shaft 2 52.

[0047] The clamping section 32 includes an arc surface section 2 55 and an arc surface section 3 56, and the arc surface section 2 55 is connected to the supporting section 31; the arc surface section 1 54 and the arc surface section 2 55 both protrude toward the side away from the central axis of the clamping sleeve 34, and the arc surface section 3 56 protrudes toward the central axis of the clamping sleeve 34; the protective cover can be clamped or opened in the clamping groove formed by the arc surface sections 2 55 of the two clamping sleeves 34 through the connecting shaft 2 52.

[0048] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0049] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A guide wheel protective cover for a rail vehicle, characterized in that: The invention comprises an upper protective cover (1) and a lower protective cover (2) connected to a bogie frame (3); the upper protective cover (1) is rotatably connected to the bogie frame (3) via a connecting assembly and can be opened and closed up and down; the upper protective cover (1) comprises a side drainage area (5) and a top drainage area (6) located above the side drainage area (5); the side drainage area (5) and the top drainage area (6) respectively comprise a side drainage platform (7) and a top drainage platform (8); the side drainage platform (7) and the top drainage platform (8) are respectively arranged to be inclined downwards towards the two sides of the guide wheel (4); the lower protective cover (2) is located below the top drainage platform (8) and faces away from the side drainage platform (7); A side is arranged to extend obliquely toward the outside of the guide wheel (4); the accumulated water on the side drainage platform (7) flows downwardly into the outside of the guide wheel (4); the accumulated water on the top drainage platform (8) flows downwardly into the lower protective cover (2), and then flows into the outside of the guide wheel (4) from the side away from the side drainage platform (7) through the lower protective cover (2); the inner end surface (9) of the upper protective cover (1) close to the bogie frame (3) is a straight surface structure perpendicular to the upper end surface (12) of the guide wheel (4); the side drainage area (5) and the top drainage area (6) are both extended from the inner end surface (9) to the side away from the bogie frame (3); the top drainage platform (8) is formed by the inner end surface (9) The top drainage area (6) further comprises a top connection platform (10) formed by extending downward from the end of the top drainage platform (8) away from the inner end surface (9); the side drainage platform (7) is connected to the lower end of the top connection platform (10); the side drainage area (5) further comprises a side connection platform (11) provided at the lower end of the side drainage platform (7); the top connection platform (10) and the side drainage platform (7) are both arc structures protruding away from the inner side surface; the included angle α between the arc top of the top connection platform (10) and the upper end surface (12) of the guide wheel (4) is greater than the included angle α between the arc top of the side drainage platform (7) and the guide wheel (4) The lower end of the side connecting platform (11) is located above the side edge (15) of the guide wheel (4); the inner end (14) of the lower protective cover (2) away from the bogie frame (3) is located below the top drainage platform (8) and is located at one-third to one-half of the top drainage platform (8); the upper end (13) of the lower protective cover (2) is an inclined surface structure that tilts downward from the upper end of the inner end (14) toward the outer side of the guide wheel (4), and the side end of the lower protective cover (2) away from the inner end (14) is located above the side edge (16) of the guide wheel (4) away from the side drainage area (5).

2. The guide wheel protective cover for a rail vehicle according to claim 1, characterized in that: The top drainage platform (8) is provided with an anti-shrinkage groove 1 (17) and an anti-shrinkage groove 2 at the upper and lower ends respectively, and the anti-shrinkage groove 1 (17) is located in the middle part away from the top connecting platform (10); the lower end of the top drainage platform (8) is also provided with a reinforcing rib 1; and the top drainage platform (8) and the top connecting platform (10) are also provided with a clearance groove (18).

3. The guide wheel protective cover for a rail vehicle according to claim 2, characterized in that: The second inner end surface (14) of the lower protective cover (2) comprises a concave section (19) that is concave toward the bogie frame (3); and the lower end of the second upper end surface (13) of the lower protective cover (2) is provided with a second reinforcing rib (20).

4. The guide wheel protective cover for a rail vehicle according to any one of claims 1 to 3, characterized in that: The connection assembly comprises an upper connection member (21) and a lower connection member (22), wherein the central axes of the upper connection member (21) and the lower connection member (22) are both arranged vertically with respect to the upper end surface (12) of the guide wheel (4); the upper protective cover (1) is driven to open toward the bogie frame (3) or to close toward the guide wheel (4) by the upper connection member (21); when the upper protective cover (1) is closed, the upper protective cover (1) is clamped by the lower connection member (22).

5. The guide wheel protective cover for a rail vehicle according to claim 4, characterized in that: The upper connecting member (21) comprises a connecting shaft (23) rotatably connected to the upper protective cover (1) and a supporting frame (24) fixed on the connecting shaft (23), wherein both ends of the connecting shaft (23) extend to the clearance groove (18); an elastic pressing member (33) is provided on the supporting frame (24), and when the upper protective cover (1) is closed, a pressing force is provided by the elastic pressing member (33); when the upper protective cover (1) is opened, an auxiliary tension is provided by the elastic pressing member (33).

6. The guide wheel protective cover for a rail vehicle according to claim 5, characterized in that: The elastic fastening member (33) is connected between the connecting shaft 1 (23) and the supporting frame 1 (24), and the elastic fastening member (33) comprises a lower supporting spring sheet (26) and an upper opening and closing spring sheet (25) located at the upper end of the lower supporting spring sheet (26); the upper opening and closing spring sheet (25) is a multi-arc segment structure as a whole, and the lower supporting spring sheet (26) is matched and arranged at the lower part of the upper opening and closing spring sheet (25).

7. The guide wheel protective cover for a rail vehicle according to claim 6, characterized in that: The lower connecting member (22) comprises a second support frame (27), the second support frame (27) comprises a bottom support (28) and an upper support (29) vertically arranged at the upper end of the bottom support (28); a clamping sleeve is connected to the upper support (29), the clamping sleeve comprises two symmetrically arranged clamping pieces (30), the clamping pieces (30) comprise a supporting section (31) of a straight surface structure and a clamping section (32) of a multi-arc surface section structure; a second connecting shaft is provided on the upper protective cover (1), and the second connecting shaft can be clamped or opened in the clamping sleeve to cooperate with the opening and closing operation of the upper protective cover (1).

Images