Rail transport vehicle

Abstract

The invention discloses a rail transport vehicle which comprises a carriage and bogies, the bogies comprise the first bogie, the first bogie comprises a first frame body, a first wheel set and a differential transmission device, and the first wheel set is rotatably installed on the first frame body; the first wheel set is suitable for being in rolling fit with the track so as to drive the carriage to run along the track through the first frame body. Wherein the first wheel group comprises two driving wheels which are oppositely arranged in the width direction of the carriage, the two driving wheels are in power connection through a differential transmission device, and the differential transmission device is configured to adjust the rotation speed ratio of the two driving wheels. According to the rail transport vehicle, the rotation speed ratio of the two driving wheels can be adjusted through the differential transmission device so as to adapt to curve running, and therefore the first bogie can drive the carriage to achieve turning under the extremely-small turning radius, and the turning performance of the rail transport vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of rail transportation technology, and in particular to a rail transportation vehicle. Background Art

[0002] Rail transport vehicles solve the problem of high-tempo, long-distance, open-air, road-crossing or road-crossing steel coil transportation between various processes of hot-rolled strip production lines, between production lines, and between production lines and finished product warehouses. Rail transport vehicles include carriages and bogies. The bogies drive the carriages to move on the tracks, but the turning performance of the bogies is poor, resulting in the wheel rims being squeezed and severely worn on the sides of the tracks when turning, resulting in the need for regular track replacement at the bends of the tracks, and the bogies need to frequently replace wheels, which reduces the safety of the bogies and reduces the service life of the bogies and tracks. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a rail transport vehicle, which can adjust the speed ratio of two active wheels through a differential transmission device to adapt to driving on a curve, so that the first bogie can drive the carriage to achieve a turn with a very small turning radius, so as to improve the turning performance of the rail transport vehicle.

[0004] The rail transport vehicle according to the embodiment of the present application is characterized in that it includes: a car; a bogie, the bogie includes a first bogie, the first bogie includes a first frame body, a first wheel group and a differential transmission device, the first frame body is hinged to the car, the first wheel group is rotatably mounted on the first frame body, and the first wheel group is suitable for rolling cooperation with the track to drive the car along the track through the first frame body; wherein the first wheel group includes two driving wheels arranged opposite to each other in the width direction of the car, the two driving wheels are power-connected by the differential transmission device, and the differential transmission device is configured to adjust the speed ratio of the two driving wheels.

[0005] According to the rail transport vehicle of the embodiment of the present application, its two active wheels are connected by a differential transmission device. In this way, when the first bogie drives the car body to turn along the track, the speed ratio of the two active wheels can be adjusted through the differential transmission device to adapt to the curve driving, so that the first bogie can drive the car body to achieve a turn with an extremely small turning radius, so as to improve the turning performance of the rail transport vehicle, and can reduce the extrusion between the wheel rim of the active wheel and the side of the track, thereby reducing the wear of the active wheel and the track, thereby extending the service life of the first bogie and the track, and is conducive to improving the safety of the rail transport vehicle.

[0006] According to the rail transport vehicle of some embodiments of the present application, the differential transmission device includes: a differential and a coupling, and the corresponding rotating shafts of the two driving wheels are respectively connected to the differential through one of the couplings.

[0007] According to the rail transport vehicle of some embodiments of the present application, the differential transmission device also includes: a power system, the power system is installed on the first frame body, and the output end of the power system is connected to the differential power.

[0008] According to the rail transport vehicle of some embodiments of the present application, the first wheel group also includes two driven wheels arranged opposite to each other in the width direction of the carriage, and the two driven wheels are rotatably mounted on the first frame body via the same rotating shaft, or the two driven wheels are swingably mounted on the first frame body via respective articulated shafts.

[0009] According to the rail transport vehicle of some embodiments of the present application, the bogie also includes a second bogie, the second bogie includes a second frame body and a second wheel group, the second frame body is hinged to the car, the second wheel group is rotatably mounted on the second frame body, and the second wheel group is suitable for rolling cooperation with the track to drive the car along the track through the second frame body; wherein, the second wheel group includes four driven wheels arranged relatively to each other in the width direction of the car, the four driven wheels are rotatably mounted on the second frame body, or two of the driven wheels are swingably mounted on the second frame body via hinge shafts respectively.

[0010] According to the rail transport vehicle of some embodiments of the present application, when the two driven wheels are respectively swingably mounted on the second frame body through articulated shafts, the second frame body is provided with an avoidance space for avoiding the driven wheels in the swinging direction of the driven wheels.

[0011] According to the rail transport vehicle of some embodiments of the present application, a first limit member and a second limit member are provided on the side of the second frame body facing the avoidance space, the first limit member is suitable for resisting against the driven wheel when the driven wheel swings to a preset angle in a first direction relative to the frame body, and the second limit member is suitable for resisting against the driven wheel when the driven wheel swings to a preset angle in a second direction relative to the frame body, and the first direction is opposite to the second direction.

[0012] According to the rail transport vehicle of some embodiments of the present application, the first limit member and the second limit member are symmetrically arranged on both sides of the articulated shaft.

[0013] According to the rail transport vehicle of some embodiments of the present application, the second bogie also includes a subframe, the driven wheels are rotatably mounted on the subframe, and the subframe is hingedly connected to the second frame body via the articulated shaft.

[0014] According to some embodiments of the rail transport vehicle of the present application, the first bogie and the second bogie are spaced apart in the length direction of the carriage.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram of a rail transport vehicle according to some embodiments of the present application;

[0018] Figure 2 A schematic diagram of a first bogie of some embodiments of the present application;

[0019] Figure 3 It is a partial schematic diagram of an optional solution of a first bogie in some embodiments of the present application, that is, the driven wheel is swingably mounted on the frame body through an articulated shaft;

[0020] Figure 4 A schematic diagram of a second bogie according to some embodiments of the present application;

[0021] Figure 5 It is a partial schematic diagram of a second bogie according to some other embodiments of the present application. Description of the drawings:

[0023] Rail transport vehicle 100;

[0024] Bogie 10; carriage 20; track 30; electronic control device 40;

[0025] A first bogie 11; a first frame body 111; a first wheel set 112;

[0026] Driving wheel 1121, driven wheel 1122, rotating shaft 1123;

[0027] Differential transmission device 113, differential 1131; coupling 1132; power system 1133;

[0028] A second bogie 12; a second frame body 121, a second wheel set 122;

[0029] Avoidance space 123; first limiter 124; second limiter 125; subframe 126;

[0030] Articulation device 127; Articulation shaft 128. DETAILED DESCRIPTION

[0031] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0032] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0033] like Figure 1 As shown, the present application proposes a rail transport vehicle 100 .

[0034] The rail transport vehicle 100 is used for the transportation of steel coils between various processes of a hot-rolled steel production line, between production lines, and between a production line and a finished product warehouse in a high-tempo, long-distance, open-air, or road-crossing situation. The rail transport vehicle 100 includes a carriage 20 and a bogie 10.

[0035] There may be one bogie 10, or there may be multiple bogies 10, and the multiple bogies 10 may be articulated with the carriage 20, for example Figure 1 As shown, two bogies 10 are provided, and both bogies 10 are hinged to the carriage 20 through an articulated device 127, wherein the turning of the rail transport vehicle 100 is mainly driven by driving the bogie 10 to twist with the carriage 20 during the travel, so that the bogie 10 and the carriage 20 pass through the curved track 30 at a certain angle to ensure that the wheel rims adapt to the curved track 30 to continue traveling, but the current bogie 10 is difficult to turn when turning.

[0036] In this regard, the present application proposes a rail transport vehicle 100 .

[0037] like Figure 1 As shown, the rail transport vehicle 100 includes: a carriage 20 and a bogie 10,

[0038] The bogie 10 includes a first bogie 11, such as Figure 2 As shown, the first bogie 11 includes a first frame body 111, a first wheel set 112 and a differential transmission device 113. The first frame body 111 is hinged to the car body 20. The first wheel set 112 is rotatably mounted on the first frame body 111, and the first wheel set 112 is suitable for rolling cooperation with the track 30, so that the car body 20 can be driven to travel along the track 30 by the rotation of the first wheel set 112.

[0039] The first wheel group 112 includes two driving wheels 1121 arranged opposite to each other in the width direction of the carriage 20 . The two driving wheels 1121 are connected by power through a differential transmission device 113 . The differential transmission device 113 is configured to adjust the speed ratio of the two driving wheels 1121 .

[0040] Therefore, the speed ratio of the two driving wheels 1121 can be adjusted through the differential rotation device, so that the two driving wheels 1121 can automatically adjust the speed difference when turning to adapt to driving on a curved road.

[0041] It should be noted that, for railway transportation, it is difficult for the rail transport vehicle 100 to achieve turning when the turning radius is small, especially when the rail transport vehicle 100 is traveling at high speed. Therefore, the present application arranges two active wheels 1121 connected by a differential transmission device 113, so that the two active wheels 1121 can automatically adjust the speed difference when turning, and then adapt to the curve driving, thereby reducing the extrusion between the wheel rim of the active wheel 1121 and the side of the track 30. In this way, the wheel rim and the side of the track 30 will not produce a large extrusion, and will not cause serious wear to the track 30, so that the track 30 does not need to be frequently changed at the curve, and the first bogie 11 does not need to frequently replace the active wheel 1121, which reduces the risk of derailment failure, helps to improve work efficiency, and increases production safety.

[0042] According to the rail transport vehicle 100 of the embodiment of the present application, its two driving wheels 1121 are connected by power through the differential transmission device 113. In this way, when the first bogie 11 drives the car 20 to turn along the track 30, the speed ratio of the two driving wheels 1121 can be adjusted through the differential transmission device 113 to adapt to the curve driving, so that the first bogie 11 can drive the car 20 to achieve a turn with an extremely small turning radius, so as to improve the turning performance of the rail transport vehicle 100, and can reduce the extrusion between the wheel rim of the driving wheel 1121 and the side of the track 30, thereby reducing the wear of the driving wheel 1121 and the track 30, thereby extending the service life of the first bogie 11 and the track 30, and is conducive to improving the safety of the rail transport vehicle 100.

[0043] In some embodiments, Figure 2 As shown, the differential transmission device 113 includes: a differential 1131 and a coupling 1132 , and the corresponding rotating shafts of the two driving wheels 1121 are respectively connected to the differential 1131 through a coupling 1132 .

[0044] As a result, the driving wheel 1121 can be connected to the differential 1131 through the coupling 1132 to achieve the connection between the driving wheel 1121 and the differential 1131, and under the action of the differential 1131, the two driving wheels 1121 can automatically adjust the speed difference when turning to adapt to driving on a curve.

[0045] In some embodiments, Figure 2 As shown, the differential transmission device 113 also includes: a power system 1133 .

[0046] The power system 1133 is installed on the first frame body 111, and the output end of the power system 1133 is connected to the differential 1131. Therefore, it is convenient to integrate the power system 1133 with the first bogie 11, and it is convenient to provide power to the differential 1131 through the power system 1133, thereby realizing the rotation of the two active wheels 1121.

[0047] In some embodiments, the rail transport vehicle 100 further includes an electric control device 40 , which is electrically connected to the power system 1133 , so that the electric control device 40 can be used to control whether the power of the power system 1133 is output.

[0048] In some embodiments, Figure 2As shown, the first wheel group 112 also includes two driven wheels 1122 arranged relatively to each other in the width direction of the car 20. The two driven wheels 1122 are rotatably mounted on the first frame body 111 through different rotating shafts 1123 respectively. As a result, when the first bogie 11 drives the car 20 to travel along the track 30, the two driven wheels 1122 can rotate driven by the driving wheel 1121 to enhance the movement stability of the first bogie 11.

[0049] Or Figure 3 As shown, the two driven wheels 1122 are swingably mounted on the first frame body 111 through the articulated shaft 128. Therefore, when the first bogie 11 drives the carriage 20 to turn and the two driving wheels 1121 have different rotation speeds under the action of the differential 1131, the two driven wheels 1122 can swing relative to the frame to better adapt to the curve driving, so that the first bogie 11 can drive the carriage 20 to turn with a very small turning radius, so as to improve the turning performance of the rail transport vehicle 100, and can reduce the extrusion between the wheel rim of the driving wheel 1121 and the side of the track 30, thereby reducing the wear of the driving wheel 1121 and the track 30, thereby extending the service life of the first bogie 11 and the track 30, and is conducive to improving the safety of the rail transport vehicle 100.

[0050] In some embodiments, such as Figure 1 As shown, the bogie 10 also includes a second bogie 12, such as Figure 4 As shown, the second bogie 12 includes a second frame body 121 and a second wheel set 122, the second frame body 121 is hinged to the carriage 20, the second wheel set 122 is rotatably mounted on the second frame body 121, and the second wheel set 122 is suitable for rolling cooperation with the track 30 to drive the carriage 20 to travel along the track 30 through the second frame body 121;

[0051] The second wheel set 122 includes four driven wheels 1122 that are relatively arranged in the width direction of the vehicle body 20 , and two driven wheels 1122 are swingably mounted on the second frame body 121 via hinge shafts 128 .

[0052] It can be understood that the four driven wheels 1122 of the second wheel set 122 can be rotatably mounted on the second frame body 121, so that the four driven wheels 1122 of the second wheel set 122 can travel synchronously driven by the first bogie 11_.

[0053] Alternatively, two driven wheels 1122 correspondingly arranged on both sides of the second frame body 121 are swingably mounted on the second frame body 121 through articulated shafts 128. Thus, the two driven wheels 1122 can swing relative to the frame to better adapt to driving on a curved road, so that the first bogie 11 can drive the carriage 20 to achieve a turn with a very small turning radius, thereby improving the turning performance of the rail transport vehicle 100, and reducing the extrusion between the wheel rim of the driving wheel 1121 and the side of the track 30, thereby reducing the wear of the driving wheel 1121 and the track 30, thereby extending the service life of the first bogie 11 and the track 30, and helping to improve the safety of the rail transport vehicle 100.

[0054] It should be noted that, for railway transportation, it is difficult for the rail transport vehicle 100 to achieve a turn when the turning radius is small, especially when the rail transport vehicle 100 is traveling at high speed. Therefore, the present application sets the two active wheels 1121 of the first bogie 11 to be connected through a differential transmission device 113, so that the two active wheels 1121 can automatically adjust the speed difference when turning. At the same time, the two driven wheels 1122 of the second bogie 12 can swing relative to the frame to adapt to the curve driving, thereby reducing the extrusion between the wheel rim of the active wheel 1121 and the side of the track 30. In this way, there will be no large extrusion between the wheel rim and the side of the track 30, and no serious wear will be caused to the track 30, so that the track 30 does not need to be frequently changed at the curve, and the first bogie 11 does not need to frequently replace the active wheel 1121, which reduces the risk of derailment failure, helps to improve work efficiency, and increases production safety.

[0055] In some embodiments, Figure 5 As shown, in the swinging direction of the driven wheel 1122 , the second frame body 121 is provided with an avoidance space 123 for avoiding the driven wheel 1122 .

[0056] Therefore, the avoidance space 123 can be used to avoid the swing of the driven wheel 1122 to ensure the smooth swing of the driven wheel 1122 and help reduce the risk of interference between the swing of the driven wheel 1122 and the second frame body 121.

[0057] In some embodiments, Figure 5 As shown, a first limit member 124 and a second limit member 125 are provided on one side of the second frame body 121 facing the avoidance space 123. The first limit member 124 is suitable for abutting against the driven wheel 1122 when the driven wheel 1122 swings to a preset angle in a first direction relative to the frame body, and the second limit member 125 is suitable for abutting against the driven wheel 1122 when the driven wheel 1122 swings to a preset angle in a second direction relative to the frame body. The first direction is opposite to the second direction.

[0058] Therefore, by providing the first limiter 124, the maximum rotation angle between the driven wheel 1122 and the frame body when swinging in the first direction can be limited by the first limiter 124, thereby preventing the rotation angle from being too large. At the same time, by providing the second limiter 125, the maximum rotation angle between the driven wheel 1122 and the frame body when swinging in the second direction can be limited by the second limiter 125, thereby preventing the rotation angle from being too large.

[0059] In some embodiments, Figure 5 As shown, the first limiting member 124 and the second limiting member 125 are symmetrically arranged on both sides of the hinge shaft 128 .

[0060] Therefore, it is easy to reduce the difficulty of setting the first limit member 124 and the second limit member 125, and the arrangement of the first limit member 124 and the second limit member 125 is more neat.

[0061] In some embodiments, Figure 5 As shown, the second bogie 12 (as Figure 4 The second bogie 12) also includes a sub-frame 126, and the driven wheel 1122 is rotatably mounted on the sub-frame 126, and the sub-frame 126 is hingedly connected to the second frame body 121 through an articulated shaft 128.

[0062] Therefore, by providing the sub-frame 126 , the driven wheel 1122 can be hinged to the second frame body 121 through the sub-frame 126 , so as to reduce the difficulty of installing the driven wheel 1122 .

[0063] In some embodiments, the first bogie 11 and the second bogie 12 are spaced apart from each other in the length direction of the car 20 .

[0064] As a result, when the rail transport vehicle 100 travels along the track 30, the first bogie 11 and the second bogie 12 can drive the carriage 20 to travel along the track 30. When turning, the first bogie 11 and the second bogie 12 pass through the curved track surface at a certain angle to ensure that the wheel rims of the first bogie 11 and the second bogie 12 adapt to the curved track 30.

[0065] Specifically, the driving wheels 1121 of the first bogie 11 can achieve differential rotation through the differential transmission device 113, and the driven wheels 1122 of the second bogie 12 can swing left and right within the turning angle range to adapt to the turning.

[0066] In this way, the first bogie 11 and the second bogie 12 can adapt to the curved road driving, thereby reducing the extrusion between the wheel rim of the driving wheel 1121 and the side of the track 30. In this way, the wheel rim and the side of the track 30 will not produce a large extrusion, and will not cause serious wear to the track 30, so that the track 30 does not need to be frequently changed at the curve, and the first bogie 11 does not need to frequently replace the driving wheel 1121, which reduces the risk of derailment failure, helps to improve work efficiency, and increases production safety.

[0067] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0068] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0069] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0070] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A rail transport vehicle (100), characterized in that: include: Carriage (20); A bogie (10), the bogie (10) comprising a first bogie (11), the first bogie (11) comprising a first frame body (111), a first wheel set (112) and a differential transmission device (113), the first frame body (111) being hinged to the carriage (20), the first wheel set (112) being rotatably mounted on the first frame body (111), and the first wheel set (112) being suitable for rolling cooperation with a track (30) so as to drive the carriage (20) to travel along the track (30) through the first frame body (111); The first wheel group (112) includes two driving wheels (1121) arranged opposite to each other in the width direction of the carriage (20), the two driving wheels (1121) are connected in power via the differential transmission device (113), and the differential transmission device (113) is configured to adjust the speed ratio of the two driving wheels (1121).

2. The rail transport vehicle (100) according to claim 1, characterized in that: The differential transmission device (113) comprises: a differential (1131) and a coupling (1132), and the corresponding rotating shafts of the two driving wheels (1121) are respectively connected to the differential (1131) through one of the couplings (1132).

3. The rail transport vehicle (100) according to claim 2, characterized in that: The differential transmission device (113) further comprises: a power system (1133), wherein the power system (1133) is mounted on the first frame body (111), and an output end of the power system (1133) is power-connected to the differential (1131).

4. The rail transport vehicle (100) according to any one of claims 1 to 3, characterized in that: The first wheel group (112) also includes two driven wheels (1122) arranged opposite to each other in the width direction of the vehicle body (20), and the two driven wheels (1122) are rotatably mounted on the first frame body (111), or the two driven wheels (1122) are swingably mounted on the first frame body (111) via hinge shafts (128).

5. The rail transport vehicle (100) according to any one of claims 1 to 3, characterized in that: The bogie (10) further comprises a second bogie (12), the second bogie (12) comprising a second frame body (121) and a second wheel set (122), the second frame body (121) being hinged to the carriage (20), the second wheel set (122) being rotatably mounted on the second frame body (121), and the second wheel set (122) being suitable for rolling cooperation with the track (30) so as to drive the carriage (20) to travel along the track (30) through the second frame body (121); The second wheel group (122) includes four driven wheels (1122) arranged relatively to each other in the width direction of the vehicle body (20); the four driven wheels (1122) are rotatably mounted on the second frame body (121); or two driven wheels (1122) are swingably mounted on the second frame body (121) via hinge shafts (128).

6. The rail transport vehicle (100) according to claim 4-5, characterized in that: When the two driven wheels (1122) are swingably mounted on the second frame body (121) via hinge shafts (128), respectively, the first frame body (121) is provided with an avoidance space (123) for avoiding the driven wheels (1122) in the swinging direction of the driven wheels (1122).

7. The rail transport vehicle (100) according to claim 6, characterized in that: A first limiting member (124) and a second limiting member (125) are provided on a side of the second frame body (121) facing the avoidance space (123); the first limiting member (124) is adapted to abut against the driven wheel (1122) when the driven wheel (1122) swings to a preset angle in a first direction relative to the frame body; the second limiting member (125) is adapted to abut against the driven wheel (1122) when the driven wheel (1122) swings to a preset angle in a second direction relative to the frame body; the first direction is opposite to the second direction.

8. The rail transport vehicle (100) according to claim 7, characterized in that: The first limiting member (124) and the second limiting member (125) are symmetrically arranged on both sides of the hinge shaft (128).

9. The rail transport vehicle (100) according to claim 5, characterized in that: The second bogie (12) further comprises a sub-frame (126), the driven wheels (1122) are rotatably mounted on the sub-frame (126), and the sub-frame (126) is hingedly connected to the second frame body (121) via the hinge shaft (128).

10. The rail transport vehicle (100) according to claim 5, characterized in that: The first bogie (11) and the second bogie (12) are arranged to be spaced apart in the length direction of the carriage (20).

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