Locomotive wheelset driving system and locomotive

Abstract

The invention provides a locomotive wheelset driving system and a locomotive. The locomotive wheelset driving system comprises a driving shaft assembly and a locomotive shaft assembly. The driving shaft assembly comprises a traction motor and a driving wheel, and the traction motor drives the driving wheel. The locomotive axle assembly comprises wheel pairs, an axle connected with the wheel pairs, and an axle-hung box and a driven wheel which are arranged between the wheel pairs, the axle penetrates through the axle-hung box, the axle-hung box is arranged on one side of the traction motor, the axle-hung box is provided with a notch, and a part of the traction motor is arranged in the notch; the driven wheel is driven by the driving wheel so as to drive the wheel pair to rotate.

Description

Technical Field

[0001] The present application relates to the field of locomotives, and in particular to a locomotive wheelset drive system. Background Art

[0002] Rail locomotives are the main equipment in the field of rail transportation, and the wheelset drive system is an important part of rail locomotives. The locomotive wheelset is mainly driven by motors to achieve the movement of the locomotive on the track. The existing locomotive wheelset drive system uses a cylindrical axle box. When the motor output torque increases, the external dimensions of the motor will also increase accordingly. The motor of the drive system using an axle-clamping structure will interfere with the axle box. When the existing cylindrical axle box is faced with the requirements of a bogie that requires high traction, the external dimensions of the motor will also be larger, so the distance between the motor output shaft and the wheelset shaft is correspondingly larger, which cannot meet the requirements of "Co-Co" and "Bo-Bo" bogies with small wheelbases and high traction. Summary of the invention

[0003] The main purpose of the present application is to provide a locomotive wheelset drive system that can meet the requirements of a small wheelbase and high traction bogie.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] According to one aspect of the present application, a locomotive wheel set drive system is provided, comprising a drive shaft assembly and a locomotive axle assembly. The drive shaft assembly comprises a traction motor and a driving wheel, and the traction motor drives the driving wheel. The locomotive axle assembly comprises a wheelset, an axle connecting the wheelset, and an axle box and a driven wheel arranged between the wheelset, the axle passing through the axle box, the axle box being arranged on one side of the traction motor, the axle box having a notch, and a part of the traction motor being arranged in the notch; the driven wheel is driven by the driving wheel, thereby driving the wheelset to rotate.

[0006] According to one embodiment of the present application, the axle box includes a main body and two end parts, the main body connects the two end parts, the shape of the end parts is annular, and on a plane perpendicular to the center line of the end parts, the orthographic projection of the main body is a "U" shape.

[0007] According to one embodiment of the present application, the locomotive axle assembly further includes at least two brackets, which are fixedly disposed at both ends of the axle, and are used to connect the shock absorber and the grounding device, or the shock absorber and the speed sensor.

[0008] According to one embodiment of the present application, the wheelset includes two wheels, which are respectively arranged at the two ends of the axle, and the locomotive axle assembly also includes at least two axle boxes, which are arranged at the two ends of the axle and are respectively located between the bracket and the wheels corresponding to the bracket, and the axle can rotate relative to the axle boxes.

[0009] According to one of the embodiments of the present application, the axle box body is a hollow structure, and a drainage hole is provided at the bottom of the axle box body.

[0010] According to one embodiment of the present application, the axle box includes an elastic structure mounting seat, and the area of ​​the mounting seat is 0.025m 2 -0.038m 2 .

[0011] According to one of the embodiments of the present application, the locomotive wheelset system further includes a hanger, which is disposed on the other side of the traction motor and is used to assemble the traction motor on the bogie of the locomotive.

[0012] According to one of the embodiments of the present application, the shape of the portion of the suspension rod opposite to the traction motor is the same as the shape of the corresponding outer contour of the traction motor.

[0013] According to one of the embodiments of the present application, an alarm device is provided on the traction motor for sounding an alarm when the traction motor falls.

[0014] According to another aspect of the present application, the present application also provides a locomotive, comprising the above locomotive wheelset drive system.

[0015] It can be seen from the above technical solutions that the advantages and positive effects of the locomotive wheel set drive system proposed in this application are:

[0016] The locomotive wheel drive system proposed in the present application has a notch designed in the axle box, and a part of the traction motor is arranged in the notch. When the motor output torque increases, the motor's external dimensions will also increase accordingly, and the motor of the drive system will not interfere with the axle box.

[0017] The locomotive wheelset drive system proposed in the present application has a notch designed in the axle box, and a part of the traction motor is arranged in the notch, so that the distance between the shaft of the traction motor and the axle of the locomotive wheelset that passes through the axle box is reduced, which can meet the requirements of "Co-Co" and "Bo-Bo" bogies with small wheelbase and large traction force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various objects, features and advantages of the present application will become more apparent by considering the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present application and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0019] Figure 1 Schematic diagram of the locomotive wheelset drive system of the present application.

[0020] Figure 2 It is a schematic diagram of the locomotive wheelset drive system of the present application from another angle.

[0021] Figure 3 It is a schematic diagram of the axle box of the present application.

[0022] Figure 4 yes Figure 3 A schematic diagram of the axle box from another angle is shown.

[0023] Figure 5 It is a schematic diagram of the axle box body of the present application.

[0024] Figure 6 yes Figure 5 A schematic diagram of the shaft box from another angle is shown.

[0025] Figure 7 is a schematic diagram of the bracket of the present application.

[0026] Figure 8 yes Figure 7 A schematic diagram of another angle of the bracket shown.

[0027] Fig. 9 It is a schematic diagram of a second embodiment of the stent of the present application.

[0028] Fig.10 yes Fig. 9 A schematic diagram of another angle of the bracket shown.

[0029] Fig.11 It is a schematic diagram of the boom of the present application.

[0030] Fig.12 yes Fig.11 Schematic diagram of another angle of the boom shown.

[0031] Fig.13 is a schematic diagram of the traction motor of the present application.

[0032] Fig.14 yes Fig.13 A schematic diagram of the traction motor shown from another angle.

[0033] The following are the descriptions of the reference numerals:

[0034] 1- Locomotive wheel drive system;

[0035] 10- drive shaft assembly;

[0036] 20-locomotive axle assembly;

[0037] 30- boom;

[0038] 101- traction motor;

[0039] 102-driving wheel;

[0040] 201-wheelset;

[0041] 202- axle box;

[0042] 203-driven wheel;

[0043] 204-Stand;

[0044] 205-axle box;

[0045] 301- rod body;

[0046] 302-first suspension rod hole;

[0047] 303-second suspension rod hole;

[0048] 1011- alarm device;

[0049] 1012-motor body;

[0050] 2011-Revolver;

[0051] 2012-right wheel;

[0052] 2021-Gap;

[0053] 2022-end;

[0054] 2023-main body;

[0055] 2041-left bracket;

[0056] 2042-right bracket;

[0057] 2043-rack mounting hole;

[0058] 2044-connection seat;

[0059] 2051-left axle box;

[0060] 2052-right axle box;

[0061] 2053-Drainage hole;

[0062] 2054-Mounting seat;

[0063] 2055-Shaft mounting hole. DETAILED DESCRIPTION

[0064] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0065] In the following description of different exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part of the present application and in which different exemplary structures, systems and steps that can implement multiple aspects of the present application are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present application. Moreover, although the terms "above", "between", "within", etc. can be used in this specification to describe different exemplary features and elements of the present application, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present application.

[0066] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0067] Relative terms such as "under" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element, as shown in the figures. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation shown in the figures. For example, if the device in one figure is turned over, the element described as being "under" or "bottom" of other elements will be oriented "on" or "top" of other elements. Therefore, the exemplary term "under" may include the orientations of "under" and "top", and the term "bottom" may include the orientations of "bottom" and "top", depending on the specific orientation of the figure. Similarly, if the device in one figure is turned over, the element described as being "under" or "bottom" of other elements will be oriented to be "on" or "top" of other elements. Therefore, the exemplary terms "bottom" or "below" may include the orientations of top and bottom.

[0068] See also Figure 1 to Figure 2 , which representatively shows the locomotive wheel set drive system 1 of the present application, including a drive shaft assembly 10 and a locomotive axle assembly 20. The drive shaft assembly 10 includes a traction motor 101 and a driving wheel 102, and the traction motor 101 drives the driving wheel 102. The locomotive axle assembly 20 includes a wheelset 201, an axle connecting the wheelset 201, and an axle box 202 and a driven wheel 203 arranged between the wheelset 201, the axle passes through the axle box 202, the axle box 202 is arranged on one side of the traction motor 101, the axle box 202 has a notch 2021, and a part of the traction motor 101 is arranged in the notch 2021; the driven wheel 203 is driven by the driving wheel 102, thereby driving the wheelset 201 to rotate. The center distance between the driving wheel 102 and the driven wheel 203 is 450mm-490mm. The center distance between the driving wheel 102 and the driven wheel 203 can be 460 mm, 470 mm, 480 mm, etc., preferably 482.5 mm.

[0069] The locomotive wheel set drive system 1 of the present application is arranged on the locomotive, and the wheel set 201 can rotate along the guide rail to drive the locomotive to move, and the motor drives the axle to drive the wheel set 201 to rotate. The maximum operating speed of the locomotive does not exceed 120Km / h. A notch 2021 is designed in the axle box 202, and a part of the traction motor 101 is arranged in the notch 2021. When the output torque of the motor increases, the external dimensions of the motor will also increase accordingly, and the motor of the drive system will not interfere with the axle box 202. The center distance between the driving wheel 102 and the driven wheel 203 is 450mm-490mm, so that the distance between the shaft of the traction motor 101 and the axle of the locomotive that passes through the axle box 202 is reduced, which can meet the requirements of "Co-Co" and "Bo-Bo" bogies with small wheelbase and large traction.

[0070] The locomotive wheel drive system 1 of the present application meets the requirements of single-axle power of 500kW, single-axle starting traction of 95kN, a bogie with a wheelbase of 1800mm, and a gear center distance of only 482.5mm. Compared with the drive system used in traditional locomotives, the drive system can adapt to "Co-Co" and "Bo-Bo" bogies with small wheelbase and large traction.

[0071] Among them, both the driving wheel 102 and the driven wheel 203 use helical gears, which have large overlap, good meshing performance, low noise, and smooth transmission. The driving wheel 102 and the driven wheel 203 have a compact structure, which can improve the life and running stability of the locomotive wheel drive system 1. The number of teeth of the helical gear of the driving wheel 102 is 16, and the number of teeth of the helical gear of the driven wheel 203 is 85, so that the gearbox design is compact, and the height of the bottom of the gearbox from the rail surface meets the requirements of GB146.1-2020 vehicle limit-3 (over the hump).

[0072] In this embodiment, the locomotive axle assembly 20 also includes at least two brackets 204, which are fixedly arranged at both ends of the axle, and the brackets 204 are used to connect the shock absorber and the grounding device. Among them, the brackets 204 include a left bracket 2041 and a right bracket 2042, the left bracket 2041 is arranged at the leftmost end of the axle, and the right bracket 2042 is arranged at the rightmost end of the axle. Among them, the left bracket 2041 is installed with the shock absorber and the grounding device, and the right bracket 2042 is installed with the shock absorber and the speed sensor; at the same time, the bracket 204 can play the role of vertical stop, lateral stop, and overall hoisting.

[0073] In this embodiment, the wheelset 201 includes two wheels, namely a left wheel 2011 and a right wheel 2012, wherein the left wheel 2011 is arranged at the left end of the axle, and the right wheel 2012 is arranged at the right end of the axle. The axle box 202 and the driven wheel 203 are arranged between the left wheel 2011 and the right wheel 2012. The locomotive axle assembly 20 also includes at least two axle boxes 205, which are arranged at both ends of the axle. The axle box 205 includes a left axle box 2051 and a right axle box 2052, both of which are arranged on the axle, the left axle box 2051 is located between the left bracket 2041 and the left wheel 2011, and the right axle box 2052 is located between the right bracket 2042 and the right wheel 2012. The left axle box 2051 and the left bracket 2041 are both arranged on the side of the left wheel 2011 facing away from the right wheel 2012, and the right axle box 2052 and the right bracket 2042 are both arranged on the side of the right wheel 2012 facing away from the left wheel 2011. The axle can rotate relative to the axle box body 205.

[0074] In this embodiment, the locomotive wheel set system further includes a suspension rod 30, which is disposed on the other side of the traction motor 101 and is used to assemble the traction motor 101 to the bogie of the locomotive. The design of the suspension rod 30 enables the wheelset drive system of the present application to be applied to bogies with different wheelbase requirements. In this embodiment, one suspension rod 30 is used, and in some other embodiments, the number of suspension rods 30 may also be multiple.

[0075] The present application also includes a gearbox (not shown in the figure), in which the driving wheel 102 and the driven wheel 203 are arranged, and the gearbox is connected to the axle box 202 and the traction motor 101 by bolts. The traction motor 101 adopts an axle-holding semi-suspension method, one side is connected to the axle through the axle box 202 and two sets of tapered roller bearings, and the other side is suspended on the frame of the bogie by a suspension rod 30, and a rubber elastic element is installed on the suspension rod 30, which can realize the relative displacement between the wheelset 201 and the frame of the bogie.

[0076] In this embodiment, see Figure 3 to Figure 4The axle box 202 includes a main body 2023 and two end parts 2022. The main body 2023 connects the two end parts 2022. The end parts 2022 are in the shape of a ring. On a plane perpendicular to the center line of the end parts 2022, the orthographic projection of the main body 2023 is in a "U" shape. The notch 2021 is arranged on the side of the main body 2023 of the axle box 202 facing the traction motor 101. Both end parts 2022 of the axle box 202 are provided with flanges, and the flanges of the two end parts 2022 of the axle box 202 can be connected to the gear box by bolts. The surface of the main body 2023 of the axle box 202 facing the traction motor 101 extends outward from the main body 2023 to form a motor mounting surface. The motor mounting surface is provided with a mounting flange for mounting the traction motor 101 and the axle box 202 together.

[0077] In this embodiment, see Figure 5 to Figure 6 The axle box body 205 is a hollow structure, and a drainage hole 2053 is provided at the bottom of the axle box body 205. The axle box body 205 is designed as a hollow open structure, which is convenient for the installation and maintenance of the axle box bearing, and is beneficial for equipment maintenance and heat dissipation. The drainage hole 2053 is provided at the bottom of the axle box body 205 to prevent the locomotive wheel set drive system 1 from being eroded by rainwater, and can extend the service life of the locomotive wheel set drive system 1.

[0078] In this embodiment, see Figure 5 to Figure 6 The shaft box 205 includes an elastic structure mounting seat 2054, and the area of ​​the mounting seat 2054 is 0.025m 2 -0.038m 2 The area of ​​the mounting seat 2054 refers to the area of ​​the annular plane around the drainage hole 2053. Figure 5 to Figure 6 It can be seen that the mounting seat 2054 is arranged on the circumference of the drainage hole 2053, and the surface of the mounting seat 2054 is annular. In this embodiment, the drainage hole 2053 is located at the center of the mounting seat 2054. In some other embodiments, the drainage hole 2053 can also be located at other positions of the mounting seat 2054.

[0079] The axle box 205 includes an axle mounting hole 2055, which is used to mount the axle box 205 on the axle. An elastic structure mounting seat 2054 and a drainage hole 2053 are arranged on both sides of the axle mounting hole 2055 in a direction perpendicular to the axle. In this embodiment, the elastic structure is a series of springs, and one drainage hole 2053 is arranged on one mounting seat 2054. The axle box 205 of the present application includes two mounting seats 2054 and two drainage holes 2053. In some other embodiments, one mounting seat 2054 may also be provided with multiple drainage holes 2053.

[0080] In this embodiment, see Figure 5 to Figure 6The mounting seat 2054 on one side of the shaft box body 205 is also provided with a hollow fence structure, which can play a certain role in limiting and protecting the elastic structure. The mounting seat 2054 on the other side is provided with a protective rib, which can also play a certain role in limiting and protecting the elastic structure.

[0081] Figures 7 and 8 One of the brackets 204 of the present application is shown, wherein the bracket 204 includes a bracket mounting hole 2043 and a connecting seat 2044, the bracket mounting hole 2043 is used to mount the bracket on the end of the axle, and the connecting seat 2044 is used to connect the shock absorber and the grounding device to the bracket 204.

[0082] In this embodiment, see Figure 11 to Figure 12 The shape of the part of the suspension rod 30 facing the traction motor 101 is the same as the shape of the outer contour of the traction motor 101. In this way, the suspension rod 30 can be arranged to fit the outer contour of the traction motor, provide greater support for the traction motor 101, effectively prevent the traction motor 101 from falling, etc., and also reduce the overall size of the locomotive wheel pair drive system 1, occupying less space.

[0083] In this embodiment, the boom 30 includes a rod body 301, and a first boom hole 302 and a second boom hole 303 are provided at both ends of the rod body 301, wherein the second boom hole 303 is used to connect the traction motor 101, and the second boom hole 302 is used to connect the bogie frame.

[0084] In this embodiment, see Figure 13 to Figure 14 The traction motor 101 includes a motor body 1012 and an alarm device 1011. The alarm device 1011 is arranged at one end of the traction motor 101 away from the driving wheel 102, and is used to alarm when the traction motor 101 falls. The arrangement of the alarm device 1011 can further improve the reliability and safety of the entire device. When the suspension rod 30 fails, the traction motor 101 will rotate downward around the axle, and the alarm device 1011 of the traction motor 101 may contact other structures of the locomotive, thereby triggering an alarm.

[0085] The locomotive wheel set drive system 1 of the present application also has a second embodiment, and the locomotive wheel set drive system 1 of the second embodiment is Figures 1 to 8 , Figures 11 to 14 Compared with the locomotive wheel set drive system 1 of the embodiment of the present invention, the basic structure has substantially the same structure. Therefore, in the following description of the locomotive wheel set drive system 1 of the second embodiment, the description will not be repeated. Figures 1 to 8 , Figures 11 to 14 In addition, Figures 1 to 8 , Figures 11 to 14The same reference numerals are used to denote the same structures as those of the locomotive wheel pair drive system 1 described in the embodiment of FIG. Figures 1 to 8 , Figures 11 to 14 The differences between the locomotive wheel set drive system 1 of the second embodiment are described. Fig. 9 and Fig.10 The left bracket 2041 and the right bracket 2042 are as follows Figures 9 and 10 In the bracket 204 shown, the left bracket 2041 is installed with a shock absorber and a speed sensor, and the right bracket 2042 is installed with a shock absorber and a grounding device.

[0086] The locomotive wheel set drive system 1 of the present application also has a third embodiment, and the locomotive wheel set drive system 1 of the third embodiment is Figures 1 to 8 , Figures 11 to 14 Compared with the locomotive wheel set drive system 1 of the embodiment of the present invention, the basic structure has substantially the same structure. Therefore, in the following description of the locomotive wheel set drive system 1 of the third embodiment, the description will not be repeated. Figures 1 to 8 , Figures 11 to 14 In addition, Figures 1 to 8 , Figures 11 to 14 The same reference numerals are used to denote the same structures as those of the locomotive wheel pair drive system 1 described in the embodiment of FIG. Figures 1 to 8 , Figures 11 to 14 The differences between the locomotive wheel set drive system 1 of the embodiment of the present invention are described. Among them, the locomotive wheel set drive system 1 of the third embodiment, see Fig. 9 and Fig.10 , left bracket 2041 adopts Figures 7 and 8 The bracket 204 shown in the figure, the right bracket 2042 adopts Figures 9 and 10 In the bracket 204 shown, the right bracket 2042 is installed with a shock absorber and a speed sensor, and the left bracket 2041 is installed with a shock absorber and a grounding device.

[0087] The locomotive wheel set drive system 1 of the present application also has a fourth embodiment, and the locomotive wheel set drive system 1 of the fourth embodiment is Figures 1 to 8 , Figures 11 to 14 Therefore, in the following description of the locomotive wheel set drive system 1 of the fourth embodiment, the description of the locomotive wheel set drive system 1 will not be repeated. Figures 1 to 8 , Figures 11 to 14 In addition, Figures 1 to 8 , Figures 11 to 14The same reference numerals are used to denote the same structures as those of the locomotive wheel pair drive system 1 described in the embodiment of FIG. Figures 1 to 8 , Figures 11 to 14 The differences between the locomotive wheel set drive system 1 of the fourth embodiment are described. Fig. 9 and Fig.10 , right bracket 2042 adopts Figures 7 and 8 The bracket 204 shown in the figure, the left bracket 2041 adopts Figures 9 and 10 In the bracket 204 shown, the right bracket 2042 is installed with a shock absorber and a speed sensor, and the left bracket 2041 is installed with a shock absorber and a grounding device.

[0088] The above is a detailed description of several exemplary embodiments of the locomotive wheel set drive system 1 proposed in the present application. The following will describe in detail the installation process of the locomotive wheel set drive system 1 proposed in the present application.

[0089] Combined with Figures 1 to 14 , the installation process of the locomotive wheel set drive system 1 proposed in this application is:

[0090] First, the axle box 202 is installed on the axle, with the notch 2021 of the axle box 202 facing the traction motor 101, and then the driven wheel 203 is installed on the outer end of the axle box 202 on the axle, and the left wheel 2011 is installed outside the driven wheel 203. The right wheel 2012 is installed on the axle of the axle box 202 away from the outer end of the driven wheel 203.

[0091] Secondly, left axle box 2051 and left bracket 2041 are installed successively on a side away from axle box 202 of left wheel 2011. Right axle box 2052 and right bracket 2042 are installed successively on a side away from axle box 202 of right wheel 2012.

[0092] Afterwards, the second suspension rod hole 303 of the suspension rod 30 is installed on the side of the traction motor 101 facing away from the axle box 202, the driving wheel 102 is installed on the traction motor 101 and meshes with the driven wheel 203, and a part of the traction motor 101 extends into the axle box 202 through the notch 2021 of the axle box 202. The first suspension rod hole 302 of the suspension rod 30 is used to suspend the frame connected to the bogie.

[0093] When the locomotive is moving, the traction motor 101 provides driving force to drive the wheelset 201 to rotate. When the boom fails and causes the traction motor 101 to fall, the alarm device 1011 sounds an alarm.

[0094] In summary, the locomotive wheel set drive system proposed in the present application includes a drive shaft assembly and a locomotive axle assembly. The drive shaft assembly includes a traction motor and a driving wheel, and the traction motor drives the driving wheel. The locomotive axle assembly includes a wheelset, an axle connecting the wheelset, and an axle box and a driven wheel arranged between the wheelset. The axle passes through the axle box, and the axle box is arranged on one side of the traction motor. The axle box has a notch, and a part of the traction motor is arranged in the notch; a notch is designed in the axle box, and a part of the traction motor is arranged in the notch. When the output torque of the motor increases, the outer dimensions of the motor will also increase accordingly, and the motor of the drive system will not interfere with the axle box. The driven wheel is driven by the driving wheel, thereby driving the wheelset to rotate. The center distance between the driving wheel and the driven wheel is 450mm-490mm. The distance between the shaft of the traction motor and the axle of the locomotive wheel set that passes through the axle box is reduced, which can meet the requirements of "Co-Co" and "Bo-Bo" bogies with small wheelbase and large traction.

[0095] The locomotive provided in the present application includes the above locomotive wheelset drive system.

[0096] It is understandable that the various embodiments / implementations provided in the present application can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0097] In the above exemplary embodiments, the locomotive wheel set drive system proposed in the present application is described by taking the application to a railway locomotive as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present application to other types of locomotives, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments, and these changes are still within the scope of the principles of the locomotive wheel set drive system proposed in the present application.

[0098] It should be noted that the locomotive wheel set drive systems shown in the drawings and described in this specification are only a few examples of many locomotive wheel set drive systems that can adopt the principles of the present application. It should be clearly understood that the principles of the present application are by no means limited to any details or any components of the locomotive wheel set drive systems shown in the drawings or described in this specification.

[0099] In the embodiments, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments can be understood according to the specific circumstances.

[0100] The exemplary embodiments of the locomotive wheel set drive system proposed in the present application are described and / or illustrated in detail above. However, the embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "an" and "above" are used to indicate the presence of one or more elements / components / etc.

[0101] The embodiments of the present application are not limited to the specific embodiments described herein, on the contrary, the components of each embodiment can be used independently and separately from the other components described herein. Each component of an embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the description of the terms "one embodiment", "some embodiments", "other embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0102] The above are only preferred embodiments of the embodiments of the present application and are not intended to limit the embodiments of the present application. For those skilled in the art, the embodiments of the present application may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A locomotive wheel set drive system, characterized in that: include: A drive shaft assembly, the drive shaft assembly comprising a traction motor and a driving wheel, the traction motor drives the driving wheel; A locomotive axle assembly, the locomotive axle assembly includes a wheelset, an axle connecting the wheelset, and an axle box and a driven wheel arranged between the wheelset, the axle passes through the axle box, the axle box is arranged on one side of the traction motor, the axle box has a notch, a part of the traction motor is arranged in the notch; the driven wheel is driven by the driving wheel, thereby driving the wheelset to rotate.

2. The locomotive wheel set drive system according to claim 1, characterized in that: The axle box includes a main body and two end parts, wherein the main body connects the two end parts, and the end parts are in a ring shape. On a plane perpendicular to the center line of the end parts, the orthographic projection of the main body is in a "U" shape.

3. The locomotive wheel set drive system according to claim 1, characterized in that: The locomotive axle assembly further comprises at least two brackets, which are fixedly arranged at both ends of the axle and are used to connect the shock absorber and the grounding device, or the shock absorber and the speed sensor.

4. The locomotive wheel set drive system according to claim 3, characterized in that: The wheelset includes two wheels, which are respectively arranged at the two ends of the axle. The locomotive axle assembly also includes at least two axle boxes, which are arranged at the two ends of the axle and are respectively located between the bracket and the wheels corresponding to the bracket. The axle can rotate relative to the axle boxes.

5. The locomotive wheel set drive system according to claim 4, characterized in that: The axle box body is a hollow structure, and a drainage hole is arranged at the bottom of the axle box body.

6. The locomotive wheel set drive system according to claim 5, characterized in that: The axle box body includes an elastic structure mounting seat, and the area of ​​the mounting seat is 0.025m 2 -0.038m 2 .

7. The locomotive wheel set drive system according to claim 1, characterized in that: Also includes: A suspension rod is arranged on the other side of the traction motor and is used to assemble the traction motor on the bogie of the locomotive.

8. The locomotive wheel set drive system according to claim 7, characterized in that: The shape of the portion of the suspension rod facing the traction motor is the same as the shape of the corresponding outer contour of the traction motor.

9. The locomotive wheel set drive system according to claim 1, characterized in that: The traction motor is provided with an alarm device for giving an alarm when the traction motor falls.

10. A locomotive, characterized in that: A locomotive wheelset drive system comprising any one of claims 1-9.

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