Power assembly suspension mechanism and mine truck

Abstract

The utility model belongs to the technical field of vehicle power assemblies, and particularly relates to a power assembly suspension mechanism and a mine truck. The front-end suspension comprises two first brackets, a connecting cross beam and two first elastic structures; and each rear end suspension comprises a second bracket, a fixed support and a second elastic structure. According to the utility model, a one-line two-point type structure is formed, the connection area with the driving motor is enlarged, and the acting force and the vibration energy can be uniformly distributed, so that the damage or failure risk is reduced, the service life is prolonged, the load is uniformly dispersed, the stress concentration is avoided, and the reliability is improved; in addition, the first elastic structure and the second elastic structure are arranged to absorb and isolate vibration, vibration of the connecting bolts can be restrained, fatigue loosening can be relieved, the vibration influence on the power assembly is reduced, and driving safety is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle powertrain technology, specifically relating to a powertrain mounting mechanism and a mining vehicle. Background Technology

[0002] The powertrain mounting system is a key connecting component between the vehicle's powertrain and the chassis. It bears the important responsibility of securely mounting the powertrain (including the engine, transmission, etc.) onto the vehicle and ensuring that the powertrain can be accurately positioned in its preset static position.

[0003] In the field of mining trucks, due to the vehicle's total weight, the need for continuous long-term operation, and the frequent exposure to complex and changing working environments, its powertrain is inevitably subject to long-term vibration. Therefore, the design of the powertrain mounting mechanism is crucial to the overall performance of mining trucks.

[0004] Currently, the mainstream design of powertrain mounting mechanisms mostly adopts a four-point structure, with the mounting points arranged on both sides of the drive motor and the gearbox. Although this design meets the basic requirements of mining trucks to a certain extent, it also has obvious shortcomings.

[0005] Specifically, the four-point structure has relatively low reliability when connecting the drive motor and the frame, resulting in a high failure rate. At the same time, its shock absorption performance is poor during driving, making it difficult to effectively suppress the vibration of the connecting bolts, which accelerates the fatigue loosening process of the bolts and thus shortens their service life.

[0006] Furthermore, it also causes uneven force distribution on the drive motor, causing some areas to bear forces exceeding their design capacity, increasing the risk of damage or failure in these areas, which may in turn lead to damage to key components in the drive motor, ultimately adversely affecting the vehicle's performance and safety. Utility Model Content

[0007] The purpose of this utility model is to provide a powertrain mounting mechanism and a mining vehicle, which solves the technical problems of low connection reliability, poor shock absorption effect and uneven force distribution in existing powertrain mounting mechanisms.

[0008] In a first aspect, this utility model discloses a powertrain mounting mechanism and a mining car, comprising:

[0009] The frame has two horizontally arranged main longitudinal beams, which are arranged side by side with intervals between them;

[0010] Front-end suspension, including:

[0011] Two first supports are arranged opposite to each other and are respectively installed on the inner sides of the two main longitudinal beams.

[0012] The connecting beam is horizontally arranged, and each end is supported by one of the first brackets.

[0013] Two first elastic structures are respectively arranged at both ends of the connecting beam to make the connecting beam elastically connected to the two first supports;

[0014] Two back-end mounts are positioned relative to each other, each of the back-end mounts comprising:

[0015] The second bracket is installed inside the main longitudinal beam.

[0016] Fixed support, supported on the second bracket.

[0017] A second elastic structure is disposed between the fixed support and the second bracket to enable an elastic connection between the two.

[0018] This application forms a one-line two-point structure, which expands the connection area with the drive motor, enabling the force and vibration energy to be evenly distributed, thereby reducing the risk of damage or failure, extending the service life, and evenly distributing the load, avoiding stress concentration, and improving reliability. In addition, by setting the first and second elastic structures to absorb and isolate vibration, the vibration of the connecting bolts can be suppressed, fatigue loosening can be slowed down, and the vibration impact on the powertrain can be reduced, thus ensuring driving safety.

[0019] Based on the above technical solution, the solution of this application can be further improved as follows:

[0020] Preferably, the connecting beam comprises:

[0021] A concave plate, with the opening facing upwards;

[0022] Multiple reinforcing ribs are spaced apart along the axial direction and fixed to the inner side of the concave plate;

[0023] The reinforcing plate is arranged horizontally and installed on the inner bottom surface of the concave plate. This solution has significant advantages in terms of structural strength, stiffness and stability. It is also easy to manufacture, install and maintain, and can meet the application requirements of bearing large loads and having high stability requirements.

[0024] Preferably, the first support includes:

[0025] The first substrate is arranged vertically and installed on the inner side of the main longitudinal beam;

[0026] The first horizontal plate is arranged horizontally and is located on the outside of the first substrate;

[0027] Two first vertical plates are respectively located on both sides of the first horizontal plate and connected to the first base plate. This solution forms a stable support structure that can effectively bear the load from above and transfer it to the main longitudinal beam. The first vertical plates increase the lateral stiffness of the support and prevent it from deforming laterally under stress. They also cooperate to form a triangular support structure, which further enhances the overall stability of the support.

[0028] Preferably, the first elastic structure includes:

[0029] First nut;

[0030] A first flexible pad is disposed between the concave plate and the first transverse plate;

[0031] A second flexible pad is disposed on the inner bottom surface of the concave plate;

[0032] A first cover plate is disposed on the top surface of the second flexible pad;

[0033] The first bolt passes through the first cover plate, the second flexible pad, the concave plate, the first flexible pad, and the first cross plate in sequence and is then threadedly connected to the first nut. This solution effectively absorbs and buffers vibration and impact, preventing vibration and impact from being transmitted to the concave plate, thereby improving the stability and reliability of the powertrain. Furthermore, the connection is stable, assembly is convenient, and manufacturing is easy.

[0034] Preferably, the second support includes:

[0035] The second base plate is arranged vertically and installed inside the main longitudinal beam;

[0036] Z-shaped plates are arranged horizontally and located on the outside of the second substrate;

[0037] Two second vertical plates are respectively located on both sides of the Z-shaped plate and connected to the second base plate. With this solution, a horizontal support surface is formed on the side of the gearbox, which can effectively bear the load from above and transfer it to the main longitudinal beam. The second vertical plates increase the lateral stiffness and prevent lateral deformation under stress. They also cooperate to form a triangular support structure, thereby further enhancing the overall stability of the bracket.

[0038] Preferably, the fixed support includes:

[0039] The third substrate is arranged vertically;

[0040] The second horizontal plate is arranged horizontally and located inside the third substrate;

[0041] Two third vertical plates are placed on both sides of the second horizontal plate and connected to the third base plate. This design forms a stable support structure that can effectively transfer the load to the second support. The third base plate increases the lateral stiffness, preventing lateral deformation under stress. The triangular support structure formed by their mutual cooperation further enhances the overall stability.

[0042] Preferably, the second elastic structure includes:

[0043] Second nut;

[0044] A third flexible pad is arranged between the second horizontal plate and the lower top surface of the Z-shaped plate;

[0045] A fourth flexible pad is arranged on the second horizontal plate;

[0046] The second cover plate is disposed on the top surface of the fourth flexible pad;

[0047] The second bolt passes through the second cover plate, the fourth flexible pad, the second horizontal plate, the third flexible pad, and the Z-shaped plate in sequence and is then threaded to the second nut. This solution effectively absorbs and buffers vibration and impact, preventing vibration and impact from being transmitted to the fixed support, thereby improving the stability and reliability of the powertrain. Furthermore, the connection is stable, assembly is convenient, and manufacturing is easy.

[0048] Secondly, this utility model discloses a mining vehicle, including: the powertrain suspension mechanism described in any one of the above claims.

[0049] Through the above technical solution, this utility model achieves the following beneficial effects:

[0050] 1. This application forms a one-line two-point structure, which significantly expands the connection area with the drive motor, making the force and vibration energy more evenly distributed on the drive motor, avoiding excessive force in local areas, and keeping the force borne by each part within the design bearing capacity range, thereby reducing the risk of damage or failure and extending the service life.

[0051] 2. This application expands the connection area with the drive motor, ensuring the stability of the connection between the connecting beam and the drive motor. Furthermore, by having each end of the connecting beam supported by a first bracket, the load can be evenly distributed to the first bracket, thereby avoiding stress concentration, improving reliability, and reducing the failure rate.

[0052] 3. By setting up a first elastic structure and a second elastic structure, this application can effectively absorb and isolate the vibration transmitted from the main longitudinal beam, thereby effectively suppressing the vibration of the connecting bolts, slowing down the fatigue loosening process of the bolts, thus extending the service life, reducing the vibration impact on the powertrain, and ensuring driving safety. Attached Figure Description

[0053] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0054] Figure 1 This is a structural schematic diagram of the powertrain mounting mechanism described in a specific embodiment from a rear side view.

[0055] Figure 2 This is a schematic diagram of the powertrain mounting mechanism from a front side view in a specific embodiment;

[0056] Figure 3 This is a top view of the powertrain mounting mechanism described in a specific embodiment;

[0057] Figure 4 This is a structural schematic diagram of the powertrain mounting mechanism from a rear-lower view in a specific embodiment;

[0058] Explanation of reference numerals in the attached figures:

[0059] 1. Chassis; 11. Main longitudinal beams;

[0060] 2. Front-end suspension; 21. First bracket; 211. First base plate; 212. First horizontal plate; 213. First vertical plate; 22. Connecting beam; 221. Concave plate; 222. Reinforcing rib; 223. Reinforcing plate; 23. First elastic structure; 231. First nut; 232. First flexible pad; 233. Second flexible pad; 234. First cover plate; 235. First bolt;

[0061] 3. Rear suspension; 31. Second bracket; 311. Second base plate; 312. Z-shaped plate; 313. Second vertical plate; 32. Fixed support; 321. Third base plate; 322. Second horizontal plate; 323. Third vertical plate; 33. Second elastic structure; 331. Second nut; 332. Third flexible pad; 333. Fourth flexible pad; 334. Second cover plate; 335. Second bolt. Detailed Implementation

[0062] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0063] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of this utility model, such as the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are all derived from the normal orientation of the powertrain suspension mechanism and components in mining vehicles. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0065] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0067] Example:

[0068] like Figures 1-4 As shown in the figure, this application discloses a powertrain mounting mechanism for mounting the powertrain on a vehicle frame 1. Its specific structure includes: a vehicle frame 1, a front mounting 2 and two rear mountings 3.

[0069] The frame 1 has two horizontally arranged main longitudinal beams 11, which are arranged side by side with intervals between them, to provide a stable support base for the suspension mechanism.

[0070] The front suspension 2 is used to support the drive motor and includes: two first brackets 21, a connecting crossbeam 22, and two first elastic structures 23, specifically configured as follows:

[0071] Two first supports 21 are arranged opposite each other and are respectively installed on the inner side of the two main longitudinal beams 11 to provide a stable support platform;

[0072] The connecting beam 22 is arranged horizontally, and each end is supported by a first bracket 21 to form a stable connecting bridge, thereby transmitting and distributing the load of the powertrain.

[0073] Two first elastic structures 23 are respectively arranged at both ends of the connecting beam 22 to make the connecting beam 22 elastically connected to the two first supports 21, thereby effectively absorbing and isolating vibrations to avoid the powertrain being affected by vibrations.

[0074] The two rear suspension mounts are positioned opposite each other to provide lateral support for the gearbox, thereby ensuring overall stability.

[0075] Each rear suspension 3 includes: a second bracket 31, a fixed support 32, and a second elastic structure 33, which are specifically configured as follows:

[0076] The second bracket 31 is installed inside the main longitudinal beam 11, providing the necessary support foundation;

[0077] The fixed support 32 is supported on the second bracket 31 and is used to connect and fix the gearbox;

[0078] The second elastic structure 33 is disposed between the fixed support 32 and the second bracket 31 to make the two elastically connected, thereby effectively absorbing and isolating vibrations to avoid the powertrain being affected by vibrations.

[0079] The installation method of the above technical solution is as follows:

[0080] After installation, the connecting beam 22 spans across the top of the drive motor and is detachably connected to the top surface of the drive motor by multiple sets of connecting bolts; while the two fixed supports 32 are located on both sides of the gearbox and are detachably connected to the sides of the gearbox by multiple connecting bolts.

[0081] The above design achieves the following technical effects:

[0082] First, a two-point structure is formed, which significantly expands the connection area with the drive motor, allowing the force and vibration energy to be distributed more evenly on the drive motor. This avoids excessive force in local areas, ensuring that the force on each part remains within the design load-bearing capacity, thereby reducing the risk of damage or failure and extending the service life.

[0083] Secondly, the connection area with the drive motor is expanded, which ensures the stability of the connection between the connecting beam 22 and the drive motor. Furthermore, by having each end of the connecting beam 22 supported by a first bracket 21, the load can be evenly distributed to the first bracket 21, thereby avoiding stress concentration, improving reliability, and reducing the failure rate.

[0084] Finally, by setting the first elastic structure 23 and the second elastic structure 33, the vibration transmitted from the main longitudinal beam 11 can be effectively absorbed and isolated, thereby effectively suppressing the vibration of the connecting bolts, slowing down the fatigue loosening process of the bolts, thus extending the service life, reducing the vibration impact on the powertrain, and ensuring driving safety.

[0085] In some embodiments, such as Figure 1 As shown, the connecting beam 22 includes: a concave plate 221, multiple reinforcing ribs 222, and a reinforcing plate 223, which are configured as follows:

[0086] The concave plate 221 has its opening facing upwards and is used to bear the main load transfer and support functions. Its concave design improves the ability to resist bending deformation, thus making it more stable when bearing vertical loads and less prone to deformation. It also distributes stress over a larger area, thereby reducing stress concentration, which helps to extend service life and improve its durability.

[0087] Multiple reinforcing ribs 222 are spaced apart along the axial direction and fixed inside the concave plate 221. By increasing the cross-sectional area and moment of inertia, they improve the bending and shear bearing capacity, and also help to distribute the load, reduce stress concentration, and thus extend the service life.

[0088] The reinforcing plate 223 is arranged horizontally and installed on the inner bottom surface of the concave plate 221 to increase the rigidity of the bottom of the beam, thereby improving the overall stability, dispersing the load on the bottom, reducing stress concentration, and thus enhancing durability.

[0089] For example, the reinforcing plate 223 is rectangular and is fixed at the four corners by bolts that are connected together with the drive motor, which facilitates installation and improves production efficiency; however, it is not limited to this and is not specifically limited.

[0090] The design of the connecting beam 22 described above has significant advantages in terms of structural strength, stiffness and stability. It is also easy to manufacture, install and maintain, and can meet the application requirements that need to withstand large loads and have high stability requirements.

[0091] In some embodiments, such as Figure 4 As shown, the first support 21 includes: a first base plate 211, a first horizontal plate 212, and two first vertical plates 213, which are configured as follows:

[0092] The first base plate 211 is arranged vertically and installed on the inner side of the main longitudinal beam 11. It is preferably connected by multiple bolts, which can provide a stable support surface and ensure a tight connection with the inner side of the main longitudinal beam 11, thereby enhancing the overall stability and load-bearing capacity.

[0093] The first horizontal plate 212 is arranged horizontally and located on the outside of the first base plate 211 to provide a horizontal support surface, thereby expanding the support area and ensuring the support effect.

[0094] Two first vertical plates 213 are respectively disposed on both sides of the first horizontal plate 212 and connected to the first base plate 211 to form a stable triangular support structure, which can effectively resist loads in various directions, thereby increasing the lateral stiffness of the first horizontal plate 212 and preventing it from undergoing lateral deformation when subjected to force.

[0095] Preferably, the first substrate 211 and the first horizontal plate 212 are integrally formed and have an L-shaped structure, which reduces production time and cost and improves the overall quality and reliability of the product.

[0096] The design of the first support 21 described above forms a stable support structure that can effectively bear the load from above and transfer it to the main longitudinal beam 11. The first vertical plate 213 increases the lateral stiffness of the support, preventing lateral deformation under stress. The two plates work together to form a triangular support structure, which further enhances the overall stability of the support.

[0097] Based on the above embodiments, such as Figures 1-4 As shown, the first elastic structure 23 includes: a first nut 231, a first flexible pad 232, a second flexible pad 233, a first cover plate 234, and a first bolt 235, configured as follows:

[0098] First nut 231;

[0099] The first flexible pad 232 is arranged between the concave plate 221 and the first transverse plate 212, and is preferably a rubber pad to provide elasticity and cushioning.

[0100] The second flexible pad 233 is disposed on the inner bottom surface of the concave plate 221, and is preferably a rubber pad to provide elasticity and cushioning.

[0101] The first cover plate 234 is arranged on the top surface of the second flexible pad 233 to fix the flexible pad, prevent it from shifting or falling off during use, and provide additional support and protection.

[0102] The first bolt 235 passes through the first cover plate 234, the second flexible pad 233, the concave plate 221, the first flexible pad 232, and the first horizontal plate 212 in sequence, and is then threadedly connected to the first nut 231. This ensures a tight fit and stable connection of all components, and the stiffness and buffering effect can be adjusted by adjusting the tightness.

[0103] Through the above design of the first elastic structure 23, effective absorption and buffering of vibration and impact are achieved, which can prevent vibration and impact from being transmitted to the concave plate 221, thereby improving the stability and reliability of the powertrain. Moreover, its connection is solid, assembly is convenient, and manufacturing is easy.

[0104] In some embodiments, such as Figures 1-4 As shown, the second support 31 includes: a second base plate 311, a Z-shaped plate 312, and two second vertical plates 313, specifically configured as follows:

[0105] The second base plate 311 is arranged vertically and installed on the inner side of the main longitudinal beam 11. It is preferably connected by multiple bolts, which can provide a stable support surface and ensure a tight connection with the inner side of the main longitudinal beam 11, thereby enhancing the overall stability and load-bearing capacity.

[0106] Z-shaped plate 312 is arranged horizontally and located outside the second base plate 311 to provide a horizontal support surface located next to the gearbox, thereby expanding the support area and ensuring the support effect.

[0107] Two second vertical plates 313 are respectively disposed on both sides of the Z-shaped plate 312 and connected to the second base plate 311. They are used to increase the lateral stiffness of the Z-shaped plate 312, prevent it from deforming laterally when subjected to force, and form a stable triangular support structure that can effectively resist loads in various directions.

[0108] Preferably, the second substrate 311 and the Z-shaped plate 312 are integrally formed, which reduces production time and cost and improves the overall quality and reliability of the product.

[0109] Through the above design of the second bracket 31, a horizontal support surface is formed on the side of the gearbox, which can effectively bear the load from above and transfer it to the main longitudinal beam 11. The second vertical plate 313 increases the lateral stiffness and prevents lateral deformation when under stress. The two plates also cooperate to form a triangular support structure, thereby further enhancing the overall stability of the bracket.

[0110] In some embodiments, such as Figures 1-4 As shown, the fixed support 32 includes: a third base plate 321, a second horizontal plate 322, and two third vertical plates 323, which are configured as follows:

[0111] The third base plate 321 is arranged vertically, which provides a stable support surface and ensures a tight connection with the side of the gearbox, thereby enhancing the overall stability and load-bearing capacity.

[0112] The second horizontal plate 322 is arranged horizontally and located inside the third base plate 321 to provide a horizontal support surface, thereby expanding the support area and ensuring the support effect.

[0113] Two third vertical plates 323 are disposed on both sides of the second horizontal plate 322 and connected to the third base plate 321. They are used to increase the lateral stiffness of the second horizontal plate 322, prevent it from deforming laterally when subjected to force, and form a stable triangular support structure that can effectively resist loads in various directions.

[0114] Preferably, the third substrate 321 and the second horizontal plate 322 are integrally formed, which reduces production time and cost and improves the overall quality and reliability of the product.

[0115] The design of the fixed support 32 described above forms a stable support structure that can effectively transfer the load to the second support 31. The third base plate 321 increases the lateral stiffness and prevents lateral deformation when subjected to force. The triangular support structure formed by the cooperation of the three base plates further enhances the overall stability.

[0116] Based on the above embodiments, such as Figures 1-4 As shown, the second elastic structure 33 includes: a second nut 331, a third flexible pad 332, a fourth flexible pad 333, a second cover plate 334, and a second bolt 335, specifically configured as follows:

[0117] Second nut 331;

[0118] The third flexible pad 332 is disposed between the lower top surface of the second horizontal plate 322 and the Z-shaped plate 312, and is preferably a rubber pad to provide elasticity and cushioning.

[0119] A fourth flexible pad 333 is arranged on the second horizontal plate 322, which is preferably a rubber pad, to provide elasticity and cushioning;

[0120] The second cover plate 334 is arranged on the top surface of the fourth flexible pad 333 to fix the flexible pad, prevent it from shifting or falling off during use, and provide additional support and protection.

[0121] The second bolt 335 passes through the second cover plate 334, the fourth flexible pad 333, the second horizontal plate 322, the third flexible pad 332 and the Z-shaped plate 312 in sequence and is threadedly connected to the second nut 331. This ensures a tight fit and stable connection of all components, and the stiffness and buffering effect can be adjusted by adjusting the tightness.

[0122] The design of the second elastic structure 33 described above effectively absorbs and buffers vibrations and shocks, preventing vibrations and shocks from being transmitted to the fixed support 32. This improves the stability and reliability of the powertrain, and its connection is stable, easy to assemble, and convenient to manufacture.

[0123] This application also discloses a mining vehicle, which includes the powertrain mounting mechanism described above.

[0124] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0125] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A powertrain mounting mechanism, characterized in that, include: The frame has two horizontally arranged main longitudinal beams, which are arranged side by side with intervals between them; Front-end suspension, including: Two first supports are arranged opposite to each other and are respectively installed on the inner sides of the two main longitudinal beams. The connecting beam is horizontally arranged, and each end is supported by one of the first brackets. Two first elastic structures are respectively arranged at both ends of the connecting beam to make the connecting beam elastically connected to the two first supports; Two back-end mounts are positioned relative to each other, each of the back-end mounts comprising: The second bracket is installed inside the main longitudinal beam. Fixed support, supported on the second bracket. A second elastic structure is disposed between the fixed support and the second bracket to enable an elastic connection between the two.

2. The powertrain mounting mechanism according to claim 1, characterized in that, The connecting beam includes: A concave plate, with the opening facing upwards; Multiple reinforcing ribs are spaced apart along the axial direction and fixed to the inner side of the concave plate; A reinforcing plate is arranged horizontally and installed on the inner bottom surface of the concave plate.

3. The powertrain mounting mechanism according to claim 2, characterized in that, The first support includes: The first substrate is arranged vertically and installed on the inner side of the main longitudinal beam; The first horizontal plate is arranged horizontally and is located on the outside of the first substrate; Two first vertical plates are respectively disposed on both sides of the first horizontal plate and connected to the first base plate.

4. The powertrain mounting mechanism according to claim 3, characterized in that, The first elastic structure includes: First nut; A first flexible pad is disposed between the concave plate and the first transverse plate; A second flexible pad is disposed on the inner bottom surface of the concave plate; A first cover plate is disposed on the top surface of the second flexible pad; The first bolt passes through the first cover plate, the second flexible pad, the concave plate, the first flexible pad, and the first cross plate in sequence, and is then threadedly connected to the first nut.

5. The powertrain mounting mechanism according to claim 2, characterized in that, The second support includes: The second base plate is arranged vertically and installed inside the main longitudinal beam; Z-shaped plates are arranged horizontally and located on the outside of the second substrate; Two second vertical plates are respectively disposed on both sides of the Z-shaped plate and connected to the second base plate.

6. The powertrain mounting mechanism according to claim 5, characterized in that, The fixed support includes: The third substrate is arranged vertically; The second horizontal plate is arranged horizontally and located inside the third substrate; Two third vertical plates are disposed on both sides of the second horizontal plate and connected to the third base plate.

7. The powertrain mounting mechanism according to claim 6, characterized in that, The second elastic structure includes: Second nut; A third flexible pad is disposed between the second horizontal plate and the lower top surface of the Z-shaped plate; A fourth flexible pad is arranged on the second horizontal plate; The second cover plate is disposed on the top surface of the fourth flexible pad; The second bolt passes through the second cover plate, the fourth flexible pad, the second horizontal plate, the third flexible pad, and the Z-shaped plate in sequence before being threaded into the second nut.

8. A mining vehicle, characterized in that, Includes the powertrain mounting mechanism as described in any one of claims 1 to 7.

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