Power assembly mounting structure and vehicle

Abstract

The utility model provides a power assembly mounting structure and a vehicle. The power assembly mounting structure comprises at least three assembling cavities, a plurality of main suspension bushings and a plurality of connecting pieces, wherein the assembling cavities are formed in a shell of a power assembly in a non-same-side mode, the main suspension bushings are installed in the assembling cavities in a pressed mode respectively, and the connecting pieces correspond to the main suspension bushings. One end of each connecting piece is connected to the frame, and the other end of each connecting piece is connected into an inner core of the corresponding main suspension lining. According to the power assembly installation structure, the at least three assembly cavities on the different sides are formed in the shell of the power assembly, the main suspension bushings are installed in the assembly cavities in a pressed mode respectively, the main suspension bushings are integrated on the shell of the power assembly, and the main suspension bushings are installed on the shell of the power assembly through the connecting pieces arranged corresponding to the main suspension bushings. The power assembly can be installed on the vehicle frame only by rotating the rotating shaft, the number of parts needed for assembling the power assembly can be reduced, the weight and the production cost can be reduced, and meanwhile the assembling efficiency of the power assembly can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a power assembly installation structure. Meanwhile, the utility model also relates to a vehicle provided with the power assembly installation structure. Background Art

[0002] With the rapid development of automobile technology, pure electric vehicles have emerged in order to meet the concept of energy conservation and emission reduction. The powertrain (drive axle) of pure electric vehicles is connected to the frame through suspension elements to absorb the vibration of the powertrain itself and weaken the vibration response of the road excitation force on the powertrain, thereby protecting the key parts of the drive axle during vehicle use.

[0003] The existing suspension system is mostly composed of three suspension assemblies and one or three suspension brackets. The suspension assembly, suspension bracket and powertrain (drive axle) are mostly designed as independent structures, and the system components are of many types and quantities, which makes the weight and cost of the entire power system high. At the same time, the connection strength between the powertrain and the frame, as well as the modal performance, are required to be high.

[0004] In order to ensure the strength, stiffness, modality and other performance indicators between the systems, the connection parts of the suspension frame and the drive axle housing have problems such as thick materials and large amounts of materials, which also leads to high production costs and weight. Due to the large number of types and quantities of parts, the assembly convenience and dimensional tolerance controllability of the drive axle are also poor.

[0005] At present, the suspension assembly adopts a conventional structure of suspension bushings and suspension frames. When the powertrain is installed, the sizes of multiple bushings are not uniform, and a separately designed suspension bracket is required, resulting in a large number of types and quantities of suspension system components and standard parts, and high cost and weight of the suspension assembly. At the same time, the subframe crossbeam needs to provide a welded bracket structure for the suspension. In order to cooperate with the installation of multiple bushings, the manufacturing process of the subframe is complicated, and the production cost and weight are increased.

[0006] In addition, when the motor drive axle and the suspension system are designed separately, the engagement length of the suspension bolts or threaded holes is long, which makes it easy to invade the interior of the drive axle, thereby affecting the arrangement of precision components or structural design inside the drive axle. Utility Model Content

[0007] In view of this, the utility model aims to provide a powertrain installation structure to help reduce the number of powertrain assembly parts used.

[0008] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0009] A powertrain mounting structure comprises at least three assembly cavities arranged on non-same sides of a powertrain housing, a plurality of main suspension bushings pressed into each of the assembly cavities, and a plurality of connectors arranged corresponding to each of the main suspension bushings; one end of the connector is connected to a vehicle frame, and the other end is connected to an inner core of the corresponding main suspension bushing.

[0010] Furthermore, the outer tube of the main suspension bushing includes a cylindrical main body and a flange provided at one end of the main body; the main body is press-fitted into the assembly cavity, and the flange is overlapped at the cavity opening of the assembly cavity.

[0011] Furthermore, a drainage hole for draining accumulated water is provided in the assembly cavity.

[0012] Furthermore, the assembly cavity includes a first assembly cavity and a second assembly cavity which are relatively arranged at the left and right sides of the shell, and a third assembly cavity which is arranged at the front end or the rear end of the shell.

[0013] Furthermore, the axes of the first assembly cavity and the second assembly cavity are arranged along the left-right direction of the vehicle, and the axis of the third assembly cavity is arranged along the front-rear direction of the vehicle.

[0014] Furthermore, it also includes a plurality of auxiliary suspension bushings arranged corresponding to each of the main suspension bushings; the outer tube of the auxiliary suspension bushing is fixed on the frame, the connecting piece is passed through the inner core of the corresponding auxiliary suspension bushing, and the inner core of the auxiliary suspension bushing is abutted and connected with the inner core of the corresponding main suspension bushing.

[0015] Furthermore, the frame has a hollow beam body, the auxiliary suspension bushing is arranged on the side wall of the beam body facing the powertrain, and an operating hole facing the auxiliary suspension bushing is opened on the side wall of the beam body facing away from the powertrain, and the connecting piece is inserted into the inner core of the auxiliary suspension bushing through the operating hole.

[0016] Furthermore, a through installation cavity is formed on the side wall of the beam body facing the power assembly, and the auxiliary suspension bushing is press-fitted into the installation cavity.

[0017] Furthermore, the connecting member includes a bolt; the bolt passes through the inner core of the corresponding secondary suspension bushing and is screwed into the inner core of the corresponding main suspension bushing, and the head of the bolt is retained in the beam body.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The powertrain mounting structure described in the utility model is achieved by arranging at least three non-colateral assembly cavities on the powertrain housing and press-fitting the main suspension bushings in each assembly cavity, so that the main suspension bushings are integrated on the powertrain housing, and the powertrain can be mounted on the vehicle frame through a plurality of connectors corresponding to each main suspension bushing, which is beneficial to reducing the number of parts required for assembling the powertrain, thereby helping to reduce weight and production costs, and also helping to simplify the assembly process of the powertrain and improve the assembly efficiency of the powertrain.

[0020] In addition, the cylindrical main body and flange have simple structures and are easy to process and form, and the flange is set at the cavity opening of the assembly cavity to limit the installation of the main suspension bushing in the corresponding assembly cavity. By providing a drainage hole in the assembly cavity for draining accumulated water, it is helpful to prevent the outer tube of the main suspension bushing from corroding due to accumulated water in the assembly cavity, thereby helping to extend the service life of the main suspension bushing. The first assembly cavity and the second assembly cavity on the left and right sides, as well as the third assembly cavity provided at the front end or rear end of the shell, can arrange the three main suspension bushings in a triangular shape, thereby helping to improve the stability of the powertrain during installation.

[0021] In addition, the axes of the first assembly cavity and the second assembly cavity are arranged along the left-right direction of the vehicle, and the axis of the third assembly cavity is arranged along the front-back direction of the vehicle, which is not only convenient for arrangement and implementation, but also conducive to further improving the use effect of the three main suspension bushings and further improving the installation stability of the powertrain. Through the multiple auxiliary suspension bushings arranged on the frame corresponding to each main suspension bushing, the connecting piece is inserted into the inner core of the corresponding auxiliary suspension bushing, so that the inner core of the auxiliary suspension bushing is abutted and connected with the inner core of the corresponding main suspension bushing, and the auxiliary suspension bushing can cooperate with the main suspension bushing to achieve secondary vibration reduction, thereby helping to improve the NVH performance of the whole vehicle. The setting of the frame center beam body and the operation hole is not only conducive to the arrangement and installation of the auxiliary suspension bushing in the frame, but also conducive to the operation of the connecting piece for connection.

[0022] Furthermore, the installation cavity that passes through the beam body and the auxiliary suspension bushing that is pressed into the installation cavity make the auxiliary suspension bushing integrated on the frame, which is conducive to reducing the number of parts and facilitating the installation of the auxiliary suspension bushing. At the same time, the structure of the installation cavity is simple and easy to process and form. The bolt passes through the inner core of the corresponding auxiliary suspension bushing and is screwed into the inner core of the corresponding main suspension bushing. The head of the bolt is left in the beam body, which not only makes it easy to connect the frame with the auxiliary suspension bushing and the main suspension bushing, but also saves the structure of the nut, thereby further reducing the number of parts, and the bolt connection operation is convenient and the connection effect is good.

[0023] In addition, another object of the present invention is to provide a vehicle, wherein the powertrain of the vehicle is installed on a vehicle frame using the powertrain installation structure as described above.

[0024] The vehicle described in the utility model is installed on the vehicle frame by adopting the power assembly installation structure as described above, which is beneficial to improving the power assembly installation efficiency and reducing the production cost, and is also beneficial to improving the installation effect of the power assembly on the vehicle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the structure of the power assembly installation structure, the vehicle frame and the power assembly in the assembled state according to the first embodiment of the utility model;

[0027] Figure 2 for Figure 1 A top view of

[0028] Figure 3 for Figure 2 AA direction section view;

[0029] Figure 4 This is a schematic diagram of the power assembly installation structure and the structure of the power assembly in a connected state according to the first embodiment of the present utility model;

[0030] Figure 5 It is a structural schematic diagram of the power assembly and the main suspension bushing in the assembled state according to the first embodiment of the utility model;

[0031] Figure 6 It is a structural schematic diagram of the power assembly described in the first embodiment of the utility model at one viewing angle;

[0032] Figure 7 It is a structural schematic diagram of the power assembly described in the first embodiment of the utility model from another perspective;

[0033] Figure 8 It is a structural schematic diagram of the main suspension bushing described in the first embodiment of the utility model at one viewing angle;

[0034] Fig. 9 It is a structural schematic diagram of the main suspension bushing described in the first embodiment of the utility model from another perspective;

[0035] Fig.10 It is a structural schematic diagram of the vehicle frame and the auxiliary suspension bushing in the assembled state according to the first embodiment of the utility model;

[0036] Fig.11 This is a schematic structural diagram of a frame according to Embodiment 1 of the present utility model;

[0037] Fig.12 This is a schematic structural diagram of the auxiliary suspension bushing described in Example 1 of the utility model.

[0038] Description of reference numerals:

[0039] 1. Frame; 10. Beam; 100. Side wall; 11. Installation cavity; 12. Operation hole; 2. Powertrain; 20. Shell; 210. Drain hole; 211. First assembly cavity; 212. Second assembly cavity; 213. Third assembly cavity; 214. Cylindrical protrusion; 215. Transverse portion; 216. Longitudinal portion; 31. Main suspension bushing; 310. First outer tube; 311. Main body; 312. First inner core; 313. Flanging; 314. Threaded hole; 32. Secondary suspension bushing; 321. Second outer tube; 322. Second inner core; 323. Through hole; 400. Bolt. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] In the description of the present utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction of the vehicle, the front-back direction of the vehicle is also the length direction of the vehicle, and the left-right direction of the vehicle is also the width direction of the vehicle. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0044] Embodiment 1

[0045] This embodiment relates to a powertrain installation structure, which aims to reduce the number of parts required for assembling the powertrain 2 by optimizing the design of the installation structure.

[0046] In terms of overall structure, the power assembly installation structure includes at least three assembly cavities arranged on the housing 20 of the power assembly 2 on non-colateral sides, a plurality of main suspension bushings 31 respectively pressed into each assembly cavity, and a plurality of connectors arranged corresponding to each main suspension bushing 31. One end of the connector is connected to the vehicle frame 1, and the other end is connected to the inner core of the corresponding main suspension bushing 31.

[0047] The power assembly installation structure of this embodiment is provided with at least three non-colateral assembly cavities on the housing 20 of the power assembly 2, and the main suspension bushing 31 is respectively press-fitted in each assembly cavity, so that the main suspension bushing 31 is integrated on the housing 20 of the power assembly 2. And through a plurality of connectors provided corresponding to each main suspension bushing 31, the power assembly 2, the frame 1 and the main suspension bushing 31 can be connected together to realize the installation of the power assembly 2 on the frame 1, which is conducive to reducing the number of parts required for the assembly of the power assembly 2, thereby helping to reduce the weight and production cost, and also helping to simplify the assembly process of the power assembly 2, thereby improving the assembly efficiency of the power assembly 2.

[0048] Based on the above overall introduction, an exemplary structure of the powertrain installation structure described in this embodiment is as follows: Figure 1 and Figure 2 The vehicle frame 1 in this embodiment may be the front vehicle frame 1 of the vehicle, and the powertrain 2 may adopt a drive axle in the prior art, and the powertrain 2 is installed on the front vehicle frame 1 through the installation structure in this embodiment.

[0049] For example, as shown in the figure, the power assembly 2 is in a "T" shape, and has a transverse portion 215 extending along the left-right direction of the vehicle, and a longitudinal portion 216 extending along the front-rear direction of the vehicle. The frame 1 is in a hollow frame shape, and the power assembly 2 is located in the frame 1. The distance between the left and right rear parts of the frame 1 is gradually reduced in the direction away from the front of the vehicle. This is conducive to reducing the space occupied by the frame 1 and facilitating the compact arrangement of the power assembly 2.

[0050] As a preferred embodiment, Figures 5 to 7 As shown in , the assembly cavity includes a first assembly cavity 211 and a second assembly cavity 212 which are relatively arranged on the left and right sides of the housing 20, and a third assembly cavity 213 which is arranged at the rear end of the housing 20. That is, the first assembly cavity 211 and the second assembly cavity 212 are respectively arranged at the two ends of the transverse portion 215, and the third assembly cavity 213 is arranged at the rear end of the longitudinal portion 216. In this way, the three assembly cavities are arranged in a triangle on the frame 1, and the triangle has the characteristic of good stability, which is conducive to improving the stability of the main suspension bushing 31 in use, thereby improving the connection stability between the powertrain 2 and the frame 1.

[0051] Furthermore, the axes of the first assembly cavity 211 and the second assembly cavity 212 are arranged along the left-right direction of the vehicle, and the axis of the third assembly cavity 213 is arranged along the front-back direction of the vehicle. Specifically, outwardly protruding cylindrical protrusions 214 are respectively provided at both ends of the transverse portion 215 of the power assembly 2 and the rear end of the longitudinal portion 216, and the assembly cavities are respectively formed inside the corresponding cylindrical protrusions 214. Such a configuration is not only conducive to improving the installation convenience of the main suspension bushing 31 in the corresponding assembly cavity, but also conducive to improving the connection effect between the main suspension bushing 31 and the power assembly 2.

[0052] It should be noted that the third assembly cavity 213 in this embodiment can be arranged at the front end of the frame 1 in addition to the rear end of the frame 1. In addition, the number of assembly cavities can be increased according to the use requirements in addition to three. In this embodiment, the multiple assembly cavities need to be arranged on different sides, which means that all assembly cavities cannot be arranged on the same side of the frame 1 to ensure the installation stability of the powertrain 2.

[0053] As a preferred embodiment, Figure 3 and Figure 8 and Fig. 9 As shown in , the outer tube of the main suspension bushing 31 includes a cylindrical main body 311 and a flange 313 provided at one end of the main body 311. The main body 311 is press-fitted into the assembly cavity, and the flange 313 is placed at the cavity opening of the assembly cavity. In order to distinguish it from the structure of the auxiliary suspension bushing 32 described below, the outer tube in the main suspension bushing 31 is called the first outer tube 310, and the inner core is called the first inner core 312.

[0054] In specific implementation, the first outer tube 310 is made of metal material, and the inner core of the first inner core 312 made of rubber material is molded inside the first outer tube 310. The flange 313 overlaps the cavity opening of the assembly cavity, that is, the flange 313 overlaps the cylindrical protrusion 214. Here, by overlapping the flange 313 at the cavity opening of the assembly cavity, the first outer tube 310 that is pressed into place can be restricted from continuing to move into the assembly cavity, thereby ensuring that the main suspension bushing 31 is installed in place in the assembly cavity. The main body 311 in this embodiment is pressed into the assembly cavity, and is integrated on the shell 20 through the main suspension bushing 31, which is conducive to the common matching of the two, and is conducive to improving the assembly efficiency of the main suspension in the corresponding assembly cavity.

[0055] like Figure 3As shown in , a drainage hole 210 for draining accumulated water is provided in the assembly cavity. The drainage hole 210 here is conducive to preventing the first outer tube 310 of the main suspension bushing 31 from being corroded by the accumulated water in the assembly cavity, thereby helping to extend the service life of the main suspension bushing 31. In terms of specific structure, a cavity is formed between the inner end of the main suspension bushing 31 and the inner end of the assembly cavity in the assembled state, and the drainage hole 210 is provided at the bottom of the cavity (that is, the part facing the bottom of the vehicle) to facilitate the drainage of accumulated water entering the cavity due to gravity. Furthermore, the drainage holes 210 are multiple and are arranged at intervals along the circumference of the cavity at the bottom of the cavity to further improve the drainage efficiency of accumulated water.

[0056] As a preferred embodiment, Figure 4 and Fig.12 As shown in , the powertrain mounting structure in this embodiment further includes a plurality of auxiliary suspension bushings 32 provided corresponding to each main suspension bushing 31. The outer tube of the auxiliary suspension bushing 32 is fixedly mounted on the vehicle frame 1, and the connecting member is inserted into the inner core of the corresponding auxiliary suspension bushing 32, and the inner core of the auxiliary suspension bushing 32 is abutted and connected with the inner core of the corresponding main suspension bushing 31. For the convenience of distinction, the outer tube in the auxiliary suspension bushing 32 is referred to as the second outer tube 321, and the inner core is referred to as the second inner core 322.

[0057] In the present embodiment, a plurality of auxiliary suspension bushings 32 are arranged on the vehicle frame 1 corresponding to each main suspension bushing 31, and the connecting piece is passed through the second inner core 322 of the corresponding auxiliary suspension bushing 32, so that the second inner core 322 of the auxiliary suspension bushing 32 is abutted and connected with the first inner core 312 of the corresponding main suspension bushing 31, and the auxiliary suspension bushing 32 can cooperate with the main suspension bushing 31 to achieve secondary vibration reduction, thereby further improving the NVH performance of the whole vehicle.

[0058] In terms of detailed structure, Fig.10 and Fig.11 As shown in the figure, the vehicle frame 1 has a hollow beam body 10, the auxiliary suspension bushing 32 is arranged on the side wall 100 of the beam body 10 facing the power assembly 2, and the side wall 100 of the beam body 10 facing away from the power assembly 2 is provided with an operation hole 12 facing the auxiliary suspension bushing 32, and the connecting piece is installed in the inner core of the auxiliary suspension bushing 32 through the operation hole 12. The arrangement of the beam body 10 and the operation hole 12 in the vehicle frame 1 is not only conducive to the arrangement and installation of the auxiliary suspension bushing 32 in the vehicle frame 1, but also conducive to the operation of the connecting piece for connection.

[0059] To facilitate the installation of the secondary suspension bushing 32, Figure 3 and Fig.11As shown in the figure, a through installation cavity 11 is formed on the side wall 100 of the beam body 10 facing the powertrain 2, and the secondary suspension bushing 32 is pressed into the installation cavity 11. The through installation cavity 11 on the beam body 10 and the secondary suspension bushing 32 pressed into the installation cavity 11 make the secondary suspension bushing 32 integrated on the frame 1, and the two can be shipped together. Compared with the traditional suspension bushing solution that requires the use of a suspension adapter bracket, there is no need to weld a suspension bracket structure on the frame 1, which is conducive to reducing the number of parts and facilitating the installation of the secondary suspension bushing 32. At the same time, the structure of the installation cavity 11 is simple and easy to process.

[0060] In addition, combined Figure 3 and Figure 4 As shown in the figure, the connecting member in this embodiment includes a bolt 400, which passes through the second inner core 322 of the corresponding secondary suspension bushing 32 and is screwed into the first inner core 312 of the corresponding primary suspension bushing 31, and the head of the bolt 400 is left in the beam body 10. A threaded hole 314 with an opening facing outward is provided on the first inner core 312, and a through hole 323 for the rod of the bolt 400 to pass through is provided on the second inner core 322.

[0061] In specific operation, the bolt 400 passes through the operation hole 12, passes through the through hole 323 of the second inner core 322, and is screwed to the threaded hole 314 of the first inner core 312. When the bolt 400 is tightened in place, the head of the bolt 400 is pressed against the outer side of the second inner core 322, thereby connecting the frame 1 with the secondary suspension bushing 32 and the main suspension bushing 31, and completing the installation of the power assembly 2 on the frame 1.

[0062] Such an arrangement not only facilitates the connection between the vehicle frame 1 and the auxiliary suspension bushing 32 and the main suspension bushing 31, but also saves the structure of the nut, thereby facilitating further reduction in the number of parts, and the connection operation of the bolt 400 is convenient and has a good connection effect.

[0063] As a preferred implementation, in this embodiment, the specifications of the main suspension bushings 31 are consistent, and the specifications of the auxiliary suspension bushings 32 are consistent, which is conducive to further reducing the types of parts and components and reducing production costs.

[0064] The power assembly installation structure in this embodiment can complete the installation of the power assembly 2 on the vehicle frame 1 by integrating the main suspension bushing 31 on the housing 20 of the power assembly 2, integrating the auxiliary suspension bushing 32 on the beam body 10 of the vehicle frame 1, and then connecting the main suspension bushing 31 and the auxiliary suspension bushing 32 through a connecting member. The number of parts required in the installation process of the entire power assembly 2 is less, the operation is simpler, and the connection stability is good, which is conducive to improving the use effect of the power assembly 2.

[0065] In addition, the powertrain mounting structure in this embodiment is conducive to improving the integrated and compact design of the powertrain 2, suspension bushings, and frame 1, and is conducive to improving the overall strength and modality of the structure, and has better performance.

[0066] Embodiment 2

[0067] This embodiment also relates to a vehicle, in which a powertrain 2 is installed on a vehicle frame 1 using the powertrain installation structure described in the first embodiment.

[0068] The vehicle of this embodiment is installed on the vehicle frame 1 by adopting the powertrain installation structure as described above, which is beneficial to improving the installation efficiency of the powertrain 2 and reducing the production cost, and is also beneficial to improving the installation effect of the powertrain 2 on the vehicle frame 1.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A powertrain installation structure, characterized in that: The invention comprises at least three assembly cavities arranged on non-colateral sides on a housing (20) of a power assembly (2), a plurality of main suspension bushings (31) respectively pressed into each of the assembly cavities, and a plurality of connecting members arranged corresponding to each of the main suspension bushings (31); One end of the connecting member is connected to the vehicle frame (1), and the other end is connected to the inner core of the corresponding main suspension bushing (31).

2. The powertrain installation structure according to claim 1, characterized in that: The outer tube of the main suspension bushing (31) comprises a cylindrical main body (311) and a flange (313) provided at one end of the main body (311); The main body (311) is pressed into the assembly cavity, and the flange (313) is arranged at the cavity opening of the assembly cavity.

3. The powertrain installation structure according to claim 1, characterized in that: A drainage hole (210) for draining accumulated water is provided in the assembly cavity.

4. The powertrain installation structure according to claim 1, characterized in that: The assembly cavity comprises a first assembly cavity (211) and a second assembly cavity (212) which are relatively arranged on the left and right sides of the shell (20), and a third assembly cavity (213) which is arranged at the front end or the rear end of the shell (20).

5. The powertrain installation structure according to claim 4, characterized in that: The axes of the first assembly cavity (211) and the second assembly cavity (212) are both arranged along the left-right direction of the vehicle, and the axis of the third assembly cavity (213) is arranged along the front-rear direction of the vehicle.

6. The powertrain installation structure according to any one of claims 1 to 5, characterized in that: It also includes a plurality of auxiliary suspension bushings (32) arranged corresponding to each of the main suspension bushings (31); The outer tube of the auxiliary suspension bushing (32) is fixedly mounted on the vehicle frame (1), the connecting piece is inserted into the inner core of the corresponding auxiliary suspension bushing (32), and the inner core of the auxiliary suspension bushing (32) is abutted and connected with the inner core of the corresponding main suspension bushing (31).

7. The powertrain installation structure according to claim 6, characterized in that: The vehicle frame (1) has a hollow beam body (10), the auxiliary suspension bushing (32) is arranged on the side wall (100) of the beam body (10) facing the power assembly (2), and an operating hole (12) facing the auxiliary suspension bushing (32) is opened on the side wall (100) of the beam body (10) facing away from the power assembly (2), and the connecting piece is installed in the inner core of the auxiliary suspension bushing (32) through the operating hole (12).

8. The powertrain installation structure according to claim 7, characterized in that: A through installation cavity (11) is formed on the side wall (100) of the beam body (10) facing the power assembly (2), and the auxiliary suspension bushing (32) is press-fitted into the installation cavity (11).

9. The powertrain installation structure according to claim 7, characterized in that: The connecting member comprises a bolt (400); The bolt (400) passes through the inner core of the corresponding secondary suspension bushing (32) and is screwed into the inner core of the corresponding primary suspension bushing (31), and the head of the bolt (400) is retained in the beam body (10).

10. A vehicle, characterized in that: The powertrain (2) of the vehicle is installed on the vehicle frame (1) using the powertrain installation structure described in any one of claims 1 to 9.

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