Parallel shaft motor bogie for new energy working condition vehicle

Abstract

The utility model discloses a parallel shaft motor bogie for a new energy working condition vehicle, which comprises a bogie frame, an axle, a gear box and a motor, and the axle is rotatably connected to the bogie frame through a bearing box; the gear box is hung on a bogie frame, and an output shaft of the gear box is connected with the axle; the motor is installed on the bogie frame, and an output shaft of the motor is connected with an input shaft of the gear box. The utility model has the beneficial effects that the motor and the gear box are installed on the bogie frame, and the weight of the motor and the gear box is shared by the bogie frame, so that on one hand, the extra load applied to an axle and wheels is greatly reduced; on the other hand, the weight distribution of the bogie is more uniform, the problems of vehicle shaking, deviation and the like caused by non-uniform weight distribution are reduced, and the stability and the safety of vehicle running are improved.

Description

Technical Field

[0001] This utility model relates to the field of bogies, specifically to a parallel-axis motor bogie for new energy vehicles. Background Technology

[0002] As the main transportation tool for shunting or short-distance operations on dedicated railway lines of large industrial and mining enterprises such as metallurgy, mining, hydraulic reversing petrochemicals, power, and ports, as well as in small-group railway stations, working rolling stock has advantages such as large carrying capacity and flexible and convenient operation, and is adapted to the special harsh operating conditions and environment of industrial and mining enterprises.

[0003] Chinese utility model patent CN204623452U proposes an integrated traction motor and gearbox transmission system, including a gearbox and a traction motor. The traction motor is directly mounted on the gearbox, and the connection method between the traction motor and the gearbox is IMB5 "GB / T997-2008".

[0004] The aforementioned technologies have the following drawbacks: the traction motor is directly mounted on the gearbox, and the gearbox is mounted on the axle. The weight of the traction motor and gearbox is concentrated on the axle, resulting in severe wheel wear and affecting its use. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a parallel shaft motor bogie for new energy vehicles, which solves the technical problem that the weight of the motor and gearbox is concentrated on the axle in the prior art and reduces the unsprung weight of the bogie.

[0006] To achieve the above technical objectives, the present invention provides a parallel shaft motor bogie for new energy vehicles, including a bogie frame.

[0007] An axle, wherein the axle is rotatably connected to the bogie frame via a bearing housing;

[0008] A gearbox, suspended from the bogie frame, the output shaft of which is connected to the axle; and...

[0009] An electric motor is mounted on a bogie frame, and the output shaft of the motor is connected to the input shaft of the gearbox.

[0010] In some embodiments, the bogie further includes a plurality of first support plates, a first connecting plate, a plurality of second support plates, and a second connecting plate. The plurality of first support plates are sequentially and spaced apart from the top of the motor along the axial direction of the motor. The first connecting plate is simultaneously connected to the plurality of first support plates. The plurality of second support plates are sequentially and spaced apart from the bogie frame along the axial direction of the motor. The second connecting plate is simultaneously connected to the top of the plurality of second support plates. The first connecting plate is connected to the second connecting plate.

[0011] In some embodiments, the bogie further includes a first bolt, the first connecting plate abutting against the second connecting plate, the first bolt passing through the first connecting plate, the nut of the first bolt abutting against the side of the first connecting plate away from the second connecting plate, and the first bolt being threadedly connected to the second connecting plate.

[0012] In some embodiments, the bogie further includes a first countersunk groove disposed on a first connecting plate, and the nut of the first bolt is located in the first countersunk groove.

[0013] In some embodiments, the bogie further includes a reinforcing plate connected between adjacent second support plates.

[0014] In some embodiments, the bogie further includes a third connecting plate and a plurality of third support plates, the plurality of third support plates being sequentially and spaced apart from the bottom of the motor along the axial direction of the motor, the third connecting plate being simultaneously connected to the plurality of third support plates, and the third connecting plate being simultaneously connected to the bottom of a plurality of second support plates.

[0015] In some embodiments, the bogie further includes a second bolt, which is threaded onto a third connecting plate, with the nut of the second bolt abutting against the third connecting plate, and the second bolt is threaded onto a third support plate.

[0016] In some embodiments, the bogie further includes a fourth connecting plate and a connecting rod, the fourth connecting plate being connected to the bogie frame, one end of the connecting rod being hinged to the fourth connecting plate, and the other end of the connecting rod being hinged to the gearbox.

[0017] In some embodiments, the bogie further includes a coupling located between the motor and the gearbox, wherein the output shaft of the motor is connected to the input shaft of the coupling, and the output shaft of the coupling is connected to the input shaft of the gearbox.

[0018] In some embodiments, the coupling is a drum-shaped gear coupling.

[0019] Compared with the prior art, the beneficial effects of this utility model include: the motor and gearbox are mounted on the bogie frame, and their weight is distributed by the bogie frame. On the one hand, this greatly reduces the additional load applied to the axle and wheels, reduces the pressure on the wheels, and reduces the wear rate. On the other hand, it makes the weight distribution of the bogie more uniform, reduces problems such as vehicle swaying and deviation caused by uneven weight distribution, and improves the stability and safety of vehicle driving. Attached Figure Description

[0020] Figure 1 This is a first-view overall structural diagram of the bogie provided by this utility model;

[0021] Figure 2 This utility model provides Figure 1 Enlarged view of the local structure at point A;

[0022] Figure 3 This is a second-view overall structural diagram of the bogie provided by this utility model;

[0023] Figure 4 This utility model provides Figure 3 Enlarged view of the local structure at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Bogie frame; 2. Axle; 3. Motor; 4. Gearbox; 5. First support plate; 51. First connecting plate; 52. Second support plate; 53. Second connecting plate; 54. First bolt; 55. First countersunk groove; 56. Reinforcing plate; 6. Third connecting plate; 61. Third support plate; 62. Second bolt; 7. Fourth connecting plate; 71. Connecting rod; 8. Coupling. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] This utility model provides a parallel-axis motor bogie for new energy vehicles, the structure of which is as follows: Figure 1 - Figure 4 As shown, it includes a bogie frame 1, an axle 2, a gearbox 4, and a motor 3.

[0028] The axle 2 is rotatably connected to the bogie frame 1 via a bearing housing.

[0029] The gearbox 4 is suspended on the bogie frame 1, and the output shaft of the gearbox 4 is connected to the axle 2.

[0030] The motor 3 is mounted on the bogie frame 1, and the output shaft of the motor 3 is connected to the input shaft of the gearbox 4.

[0031] In operation, motor 3 is mounted on bogie frame 1. When energized, the stator and rotor inside motor 3 interact to generate rotational power, which is output through the output shaft of motor 3. Since the output shaft of motor 3 is connected to the input shaft of gearbox 4, the output power is transmitted to gearbox 4. Within gearbox 4, a series of meshing gears adjust the speed and torque of the power output to better meet the vehicle's driving requirements. Finally, the output shaft of gearbox 4 transmits the processed power to axle 2, driving axle 2 to rotate, which in turn drives the wheels, enabling the vehicle to move. Bogie frame 1, as the basic support structure of the entire bogie, provides mounting positions for axle 2, motor 3, and gearbox 4. Axle 2 is rotatably connected to bogie frame 1 and can rotate freely under its support. Motor 3 and gearbox 4 are respectively mounted on bogie frame 1, and their weight is borne by bogie frame 1, making the connection and support between components more rational and ensuring the overall stability of the bogie structure.

[0032] In this invention, the motor 3 and gearbox 4 are mounted on the bogie frame 1, and their weight is shared by the bogie frame 1. On the one hand, this greatly reduces the extra load applied to the axle 2 and wheels, reduces the pressure on the wheels, and reduces the wear rate. On the other hand, it makes the weight distribution of the bogie more uniform, reduces problems such as vehicle swaying and deviation caused by uneven weight distribution, and improves the stability and safety of vehicle driving.

[0033] To connect the bogie frame 1 and the motor 3, please refer to... Figure 2 In a preferred embodiment, the bogie further includes a plurality of first support plates 5, a first connecting plate 51, a plurality of second support plates 52, and a second connecting plate 53. The plurality of first support plates 5 are sequentially and spaced apart from the top of the motor 3 along the axial direction of the motor 3. The first connecting plate 51 is simultaneously connected to the plurality of first support plates 5. The plurality of second support plates 52 are sequentially and spaced apart from the bogie frame 1 along the axial direction of the motor 3. The second connecting plate 53 is simultaneously connected to the top of the plurality of second support plates 52. The first connecting plate 51 is connected to the second connecting plate 53.

[0034] In use, multiple first support plates 5 are sequentially and spaced apart along the axial direction of the motor 3, directly contacting the motor 3 and distributing the weight of the motor 3 and the forces generated during operation. This distribution of multiple first support plates 5 avoids excessive local stress, ensuring the stability of the motor 3 during operation. A first connecting plate 51 simultaneously connects multiple first support plates 5, linking the dispersed first support plates 5 into a single structure. This not only enhances the mutual support between the first support plates 5 but also allows for a more even distribution of force on the motor 3, forming a stable support frame, better securing the motor 3, and reducing swaying during operation. Multiple second support plates 52 are sequentially and spaced apart along the axial direction of the motor 3 on the bogie frame 1. The function of the second support plates 52 is to provide multiple connection points on the bogie frame 1, corresponding to the structures of the first support plates 5 and the first connecting plate 51, preparing for subsequent connections. A second connecting plate 53 simultaneously connects the tops of multiple second support plates 52, linking these second support plates 52 into a single unit, enhancing the strength and stability of the connection points on the bogie frame 1. The first connecting plate 51 is connected to the second connecting plate 53. Through this connection method, a robust connection structure is formed between the motor 3 and the bogie frame 1. On the one hand, the weight of the motor 3 and the force generated during operation can be stably transmitted to the bogie frame 1 through the first support plate 5, the first connecting plate 51, the second connecting plate 53, and the second support plate 52. On the other hand, the bogie frame 1 can also provide stable support for the motor 3, restrict the displacement of the motor 3, and keep the motor 3 in an accurate position during operation. This ensures stable and reliable power transmission between the motor 3 and the gearbox 4 and axle 2, thereby improving the overall operational stability and reliability of the bogie.

[0035] To achieve a detachable connection between the first connecting plate 51 and the second connecting plate 53, please refer to... Figure 2 In a preferred embodiment, the bogie further includes a first bolt 54, the first connecting plate 51 abuts against the second connecting plate 53, the first bolt 54 passes through the first connecting plate 51, the nut of the first bolt 54 abuts against the side of the first connecting plate 51 away from the second connecting plate 53, and the first bolt 54 is threadedly connected to the second connecting plate 53.

[0036] In use, the first connecting plate 51 is abutted against the second connecting plate 53 to align their positions. At this point, the first connecting plate 51 and the second connecting plate 53 are in initial contact, preparing for further tightening. The first bolt 54 is inserted into a pre-set hole on the first connecting plate 51. After passing through the first connecting plate 51, the first bolt 54 is aligned with the corresponding threaded hole on the second connecting plate 53. As the first bolt 54 is screwed in, the nut of the first bolt 54 presses tightly against the side of the first connecting plate 51 away from the second connecting plate 53, generating a pulling force on the first connecting plate 51 towards the second connecting plate 53. At the same time, the threads on the second connecting plate 53 also exert a reverse force on the first bolt 54, causing the first connecting plate 51 and the second connecting plate 53 to be tightly pressed together, achieving a tight connection.

[0037] To improve the flatness of the surface of the first connecting plate 51, please refer to... Figure 2 In a preferred embodiment, the bogie further includes a first countersunk groove 55, which is disposed on the first connecting plate 51, and the nut of the first bolt 54 is located in the first countersunk groove 55.

[0038] In use, on the one hand, the nut of the first bolt 54 is located within the first countersunk groove 55. The countersunk groove provides protection for the nut, preventing it from directly scraping or colliding with external objects during vehicle operation, reducing the risk of nut damage, extending bolt life, and ensuring the stability of the connection between the first connecting plate 51 and the second connecting plate 53. On the other hand, if the nut protrudes from the surface of the first connecting plate 51, it will increase the local height of the bogie. Placing the nut within the countersunk groove makes this part of the structure flatter, helping to reduce the overall height of the bogie and meeting the vehicle's spatial layout requirements.

[0039] To improve the overall strength of the multiple second support plates 52, please refer to... Figure 2 In a preferred embodiment, the bogie further includes a reinforcing plate 56 connected between adjacent second support plates 52.

[0040] During vehicle operation, the second support plate 52 bears various loads from components such as the bogie frame 1 and the motor 3. The reinforcing plate 56 connects adjacent second support plates 52, which can distribute these loads more evenly to each second support plate 52, avoiding excessive pressure on a single second support plate 52, thereby enhancing the load-bearing capacity of the entire structure, reducing local stress concentration, and lowering the risk of structural deformation and damage.

[0041] To improve the connection strength between the bogie frame 1 and the motor 3, please refer to... Figure 3In a preferred embodiment, the bogie further includes a third connecting plate 6 and a plurality of third support plates 61, the plurality of third support plates 61 being sequentially and spaced apart from the bottom of the motor 3 along the axial direction of the motor 3, the third connecting plate 6 being simultaneously connected to the plurality of third support plates 61, and the third connecting plate 6 being simultaneously connected to the bottom of the plurality of second support plates 52.

[0042] In use, multiple third support plates 61 are sequentially and spaced along the axial direction of the motor 3 at its bottom. These third support plates 61 directly contact the bottom of the motor 3, bearing part of the weight of the motor 3 and distributing the weight of the motor 3. The distribution of multiple third support plates 61 avoids excessive local stress on the bottom of the motor 3, ensuring the stability of the motor 3's bottom during operation. A third connecting plate 6 is simultaneously connected to multiple third support plates 61, connecting the dispersed third support plates 61 into a unified structure. The third connecting plate 6 is also connected to the bottom of multiple second support plates 52, realizing a direct connection between the motor 3 and the bogie frame 1 at the bottom. Through this connection method, the force exerted on the bottom of the motor 3 can be transmitted through the third support plates 61 and the third connecting plate 6 to the second support plates 52 on the bogie frame 1, and then to the entire bogie frame 1 structure. Simultaneously, the bogie frame 1 can also provide stable support to the bottom of the motor 3 through the second support plates 52 and the third connecting plate 6, limiting the vertical displacement of the motor 3.

[0043] To achieve a detachable connection between the third connecting plate 6 and the third support plate 61, please refer to... Figure 4 In a preferred embodiment, the bogie further includes a second bolt 62, which is threaded onto a third connecting plate 6, with the nut of the second bolt 62 abutting against the third connecting plate 6, and the second bolt 62 is threaded onto a third support plate 61.

[0044] During installation, first align the installation positions of the third connecting plate 6 and the third support plate 61 so that their bolt holes correspond. Then, pass the second bolt 62 through the hole on the third connecting plate 6, aligning it with the threaded hole on the third support plate 61. As the second bolt 62 is screwed in, the bolt nut tightly abuts against the third connecting plate 6, generating a tensile force on the third connecting plate 6 towards the third support plate 61. Simultaneously, the threads on the third support plate 61 exert a counterforce on the second bolt 62, thereby tightly connecting the third connecting plate 6 and the third support plate 61 together, achieving a secure connection and ensuring that the third connecting plate 6 and the third support plate 61 will not shift relative to each other during vehicle operation.

[0045] To connect the bogie frame 1 to the gearbox 4, please refer to... Figure 4In a preferred embodiment, the bogie further includes a fourth connecting plate 7 and a connecting rod 71. The fourth connecting plate 7 is connected to the bogie frame 1, one end of the connecting rod 71 is hinged to the fourth connecting plate 7, and the other end of the connecting rod 71 is hinged to the gearbox 4.

[0046] In use, the fourth connecting plate 7 is connected to the bogie frame 1, providing a reliable connection point for the connecting rod 71, enabling the connecting rod 71 to establish a connection with the bogie frame 1. Simultaneously, the other end of the connecting rod 71 is hinged to the gearbox 4, thus connecting the bogie frame 1 and the gearbox 4 via the connecting rod 71. This determines the position of the gearbox 4 relative to the bogie frame 1, ensuring the installation accuracy and stability of the gearbox 4 within the bogie. The hinged connection allows the connecting rod 71 to rotate within a certain range, restricting the gearbox 4's freedom of movement in space, limiting its movement to specific directions and ranges. This ensures the relative stability of the gearbox 4 during vehicle operation, preventing unnecessary swaying or displacement that could affect transmission efficiency and overall vehicle performance.

[0047] To compensate for the displacement between motor 3 and gearbox 4, please refer to... Figure 4 In a preferred embodiment, the bogie further includes a coupling located between the motor 3 and the gearbox 4. The output shaft of the motor 3 is connected to the input shaft of the coupling, and the output shaft of the coupling is connected to the input shaft of the gearbox 4.

[0048] During vehicle operation, due to factors such as installation position errors of motor 3 and gearbox 4, vehicle vibration, and thermal expansion of components, axial, radial, or angular displacement deviations may occur between the output shaft of motor 3 and the input shaft of gearbox 4. The coupling possesses a certain degree of flexibility and compensation capability, enabling it to automatically adapt to these displacement deviations within a certain range, ensuring the continuity and stability of power transmission.

[0049] To further optimize displacement compensation, please refer to... Figure 4 In a preferred embodiment, the coupling is a drum-shaped gear coupling 8.

[0050] During vehicle operation, axial displacement may occur between motor 3 and gearbox 4 due to factors such as vibration and thermal expansion and contraction. The drum-shaped gear design of the drum-shaped gear coupling allows for axial relative movement between the two shafts within a certain range, effectively compensating for this axial displacement, ensuring unaffected power transmission, and preventing component wear or damage caused by axial displacement. Installation errors, frame deformation, and other factors can cause radial displacement between the motor 3 shaft and gearbox 4 shaft. The drum-shaped gear coupling, through its structural characteristics, can adapt to a certain degree of radial displacement, maintaining good transmission performance even with radial misalignment, ensuring the stability and reliability of power transmission. When the vehicle turns or experiences bumps due to poor road conditions, angular misalignment may occur between the shafts of motor 3 and gearbox 4. The drum-shaped gear coupling allows for a certain degree of angular displacement between the two shafts, typically operating normally within an angular deviation range of 3° to 5°, ensuring smooth power transmission and reducing additional loads and vibrations caused by angular misalignment.

[0051] To better understand this utility model, the following is combined with... Figure 1 - Figure 4 This invention provides a detailed explanation of the working principle of a parallel-axis motor bogie for new energy vehicles: The motor 3 is mounted on the bogie frame 1. After being energized, the stator and rotor inside the motor 3 interact to generate rotational power, which is output through the output shaft of the motor 3. Since the output shaft of the motor 3 is connected to the input shaft of the gearbox 4, the output power is transmitted to the gearbox 4. In the gearbox 4, through a series of gear meshing transmissions, the power is changed in speed and torque, making the output power more suitable for the vehicle's driving needs. Finally, the output shaft of the gearbox 4 transmits the processed power to the axle 2, driving the axle 2 to rotate, thereby driving the wheels to roll and enabling the vehicle to move. The bogie frame 1, as the basic support structure of the entire bogie, provides mounting positions for the axle 2, motor 3, and gearbox 4. The axle 2 is rotatably connected to the bogie frame 1 and can rotate freely under the support of the bogie frame 1. The motor 3 and gearbox 4 are respectively mounted on the bogie frame 1, and their weight is borne by the bogie frame 1, making the connection and support between the components more reasonable and ensuring the stability of the overall bogie structure.

[0052] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A parallel-axis motor bogie for new energy vehicles, characterized in that, include: Steering architecture; An axle, wherein the axle is rotatably connected to the bogie frame via a bearing housing; A gearbox, which is suspended on the bogie frame, has its output shaft connected to the axle; An electric motor is mounted on a bogie frame, and the output shaft of the motor is connected to the input shaft of the gearbox. The bogie also includes a plurality of first support plates, a first connecting plate, a plurality of second support plates, and a second connecting plate. The plurality of first support plates are sequentially and spaced apart from the top of the motor along the axial direction of the motor. The first connecting plate is simultaneously connected to the plurality of first support plates. The plurality of second support plates are sequentially and spaced apart from the bogie frame along the axial direction of the motor. The second connecting plate is simultaneously connected to the top of the plurality of second support plates. The first connecting plate is connected to the second connecting plate. The bogie also includes a first bolt, the first connecting plate abuts against the second connecting plate, the first bolt passes through the first connecting plate, the nut of the first bolt abuts against the side of the first connecting plate away from the second connecting plate, and the first bolt is threadedly connected to the second connecting plate. The bogie also includes a first countersunk groove, which is provided on the first connecting plate, and the nut of the first bolt is located in the first countersunk groove; The bogie also includes a third connecting plate and multiple third support plates. The multiple third support plates are sequentially and spaced apart from the bottom of the motor along the axial direction of the motor. The third connecting plate is simultaneously connected to the bottom of multiple third support plates. The bogie also includes a second bolt, which is threaded onto a third connecting plate. The nut of the second bolt abuts against the third connecting plate, and the second bolt is threaded onto a third support plate.

2. The parallel-axis motor bogie for new energy vehicles according to claim 1, characterized in that, The bogie also includes a reinforcing plate, which is connected between adjacent second support plates.

3. The parallel-axis motor bogie for new energy vehicles according to claim 1, characterized in that, The bogie also includes a fourth connecting plate and a connecting rod. The fourth connecting plate is connected to the bogie frame, one end of the connecting rod is hinged to the fourth connecting plate, and the other end of the connecting rod is hinged to the gearbox.

4. The parallel-axis motor bogie for new energy vehicles according to claim 1, characterized in that, The bogie also includes a coupling located between the motor and the gearbox. The output shaft of the motor is connected to the input shaft of the coupling, and the output shaft of the coupling is connected to the input shaft of the gearbox.

5. The parallel-axis motor bogie for new energy vehicles according to claim 4, characterized in that, The coupling is a drum-shaped gear coupling.

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