Gearbox suspension assembly and vehicle

Abstract

The gearbox suspension assembly comprises a support cross beam, the left end and the right end of the support cross beam are each sequentially connected with a connecting support, a vibration reduction piece and a longitudinal beam support, and the gearbox suspension assembly is characterized in that the support cross beam comprises a first support part and a second support part which are arranged front and back, the first support part is suitable for being connected with a gearbox, and the second support part is suitable for being connected with a longitudinal beam. An included angle is formed between the second support part and the first support part. Therefore, the first support part is suitable for being connected with the gearbox, and the included angle is formed between the second support part and the first support part, so that stress concentrated distribution can be reduced, the bearing capacity of the support cross beam in the up-down direction and the front-back direction is improved, and the structural strength of the support cross beam is improved; and front and back vibration modes of the bracket cross beam can be different, so that the problem of relatively large vibration of the gearbox in the front and back direction caused by front and back resonance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a gearbox suspension assembly and a vehicle. Background Art

[0002] With the development of science and technology and the improvement of users' living standards, vehicles have become an indispensable means of transportation. Vehicles are equipped with a powertrain mounting system, which connects the powertrain to the vehicle's frame and supports the various components of the powertrain. The mounting device also provides vibration isolation and damping, improving the comfort and safety of the driver and passengers. To ensure the safe and reliable transmission of engine torque to the gearbox, an auxiliary fulcrum, or auxiliary mounting device, is typically added to the rear housing of the gearbox. When the vehicle is under static or dynamic loads, the auxiliary mounting device can effectively prevent overloading of engine mounting components and increase their service life. It can also reduce vehicle vibration and noise, improving the smoothness of vehicle operation.

[0003] In related technologies, although the vehicle's auxiliary suspension device can provide a certain amount of support and fixation for the gearbox, the large vibration of the gearbox in the front-to-rear direction may cause the bracket structure that installs and supports the gearbox to deform or collapse. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a transmission mount assembly that can improve the structural strength of the support beam while improving the problem of large vibration of the transmission in the front-to-back direction.

[0005] The utility model further provides a vehicle.

[0006] According to the utility model, the gearbox suspension assembly includes: a bracket crossbeam, wherein the left and right ends of the bracket crossbeam are respectively connected to a connecting bracket, a vibration damping member and a longitudinal beam bracket in sequence, and the characteristic is that the bracket crossbeam includes a first bracket portion and a second bracket portion arranged in front and behind, the first bracket portion is suitable for being connected to the gearbox, and the second bracket portion is arranged at an angle to the first bracket portion.

[0007] Therefore, by making the first bracket part suitable for connection with the gearbox and making the second bracket part be arranged at an angle with the first bracket part, this can not only reduce the stress concentration distribution, improve the bearing capacity of the bracket beam in the up and down directions and the front and back directions, and improve the structural strength of the bracket beam, but also make the vibration modes of the bracket beam different in the front and back, thereby avoiding the problem of large vibration of the gearbox in the front and back directions caused by front and back resonance.

[0008] In some examples of the present invention, an angle γ is formed between the second bracket portion and the first bracket portion, and γ satisfies the relationship: 20°≤γ≤40°.

[0009] In some examples of the present invention, the first bracket portion includes a support portion and a plurality of first mounting holes arranged at intervals along the left-right direction of the support portion, the first mounting holes are suitable for connecting to a gearbox, the center of the first mounting hole is spaced from the center line of the bracket beam extending along the left-right direction, and the spacing distance between the center of the first mounting hole and the center line of the bracket beam extending along the left-right direction is L, and L satisfies the relationship: 20mm≤L≤40mm.

[0010] In some examples of the present invention, the first bracket portion also includes a plurality of reinforcing portions corresponding one-to-one to the first mounting holes, the reinforcing portions include two second mounting protrusions corresponding to the upper and lower portions, the second mounting protrusions are connected to the top surface or the bottom surface of the support portion, the first mounting hole passes through the second mounting protrusions, the thickness of the second mounting protrusions is D, and D satisfies the relationship: 5mm≤D≤7mm.

[0011] In some examples of the present invention, a first connecting hole is provided at both ends of the bracket beam in the left and right directions, and a second connecting hole is provided on the connecting bracket. One of the first connecting hole and the second connecting hole extends in the up and down directions, and the other extends in the front and back directions. At least a portion of the first connecting hole selectively corresponds to at least a portion of the second connecting hole and is detachably connected and fixed by a fastener; there are multiple first connecting holes, and the multiple first connecting holes are spaced apart in the front and back directions. There are multiple second connecting holes, and the multiple second connecting holes are spaced apart in the front and back directions. At least a portion of each second connecting hole simultaneously corresponds to at least a portion of at least one first connecting hole.

[0012] In some examples of the present invention, the connecting bracket includes a first bracket segment and a second bracket segment, the second connecting hole is arranged in the first bracket segment, the first bracket segment extends in the up and down directions and is fitted and connected with the ends of the bracket beam in the left and right directions, the second bracket segment is connected to the upper end of the first bracket segment and is located on the side of the first bracket segment away from the end of the bracket beam, the second bracket segment is suitable for being connected to the vibration damping member, the second bracket segment is arranged at an angle relative to the first bracket segment, and an angle α is formed between the second bracket segment and the first bracket segment, and α satisfies the relationship: 30°<α<60°.

[0013] In some examples of the present invention, the longitudinal beam bracket includes a first mounting flange surface and a second mounting flange surface, the first mounting flange surface and the second bracket segment are parallel to each other and are fitly connected to the shock absorber, the second mounting flange surface is set at an angle relative to the first mounting flange surface, and the second mounting flange surface extends in the up and down directions and is suitable for connection to the longitudinal beam of the vehicle.

[0014] In some examples of the present invention, an angle β is formed between the first mounting flange surface and the second mounting flange surface, and β satisfies the relationship: 30°<β<60°, α+β=90°.

[0015] In some examples of the present invention, a plurality of central mounting holes and a plurality of side mounting holes are provided on the second mounting flange surface, the centers of the plurality of central mounting holes are located on the center line of the second mounting flange surface extending in the up-down direction, the plurality of central mounting holes are arranged at intervals in the up-down direction, and the plurality of side mounting holes correspond to both sides of the top central mounting hole in the front-to-back direction, the connecting line between the center of the side mounting hole and the center of the bottom central mounting hole is set as the side connecting line, and the side connecting line is set at an angle to the center line of the second mounting flange surface extending in the up-down direction, and the angle is 45°.

[0016] A vehicle according to an embodiment of the present invention includes: the transmission suspension assembly described above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a gearbox suspension assembly according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of a gearbox suspension assembly according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of a gearbox suspension assembly according to an embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of a gearbox suspension assembly according to an embodiment of the present utility model;

[0023] Figure 5 is a cross-sectional view of a gearbox suspension assembly according to an embodiment of the present utility model;

[0024] Figure 6 It is a cross-sectional view of a gearbox suspension assembly according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 100. Transmission mounting assembly;

[0027] 10. Bracket crossbeam; 101. First connecting hole; 102. First mounting hole; 103. First mounting protrusion; 104. First bracket portion; 105. Second bracket portion;

[0028] 20. Connecting bracket; 201. First bracket segment; 202. Second bracket segment; 203. Second connecting hole;

[0029] 30. Vibration damping parts;

[0030] 40. Longitudinal beam bracket; 401. First mounting flange surface; 402. Second mounting flange surface; 403. Second mounting protrusion; 404. Middle mounting hole; 405. Side mounting hole. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0032] Reference below Figures 1-6 A transmission mount assembly 100 according to an embodiment of the present invention is described. The transmission mount assembly 100 can be applied to a vehicle.

[0033] Combine Figures 1-6 As shown, the transmission mount assembly 100 according to the present invention may primarily include a support crossbeam. The support crossbeam 10 has a connecting bracket 20, a vibration damper 30, and a longitudinal beam bracket 40 connected to its left and right ends, forming the basic framework of the transmission mount assembly 100. The coordination of the support crossbeam 10, connecting bracket 20, vibration damper 30, and longitudinal beam bracket 40 not only supports and secures the transmission, ensuring stability during vehicle operation, but also effectively isolates and absorbs vibrations from the transmission, reducing the transmission of these vibrations to the longitudinal beams of the vehicle frame, thereby improving vehicle driving stability and enhancing ride comfort.

[0034] Furthermore, the bracket crossbeam 10 includes a first bracket portion 104 and a second bracket portion 105 arranged at the front and rear. The first bracket portion 104 is suitable for connecting to the gearbox, so as to provide a mounting point and support force for the gearbox. It can fix the gearbox while bearing the weight of the gearbox to prevent the gearbox from shifting or shaking due to vibration or bumps, thereby ensuring that the gearbox is in a stable position during vehicle operation and ensuring the normal working performance of the gearbox.

[0035] Furthermore, the second bracket portion 105 is arranged at an angle to the first bracket portion 104. Specifically, the first bracket portion 104 is arranged horizontally, and the second bracket portion 105 is arranged at a certain angle relative to the first bracket portion 104. This asymmetric structural design can not only reduce stress concentration distribution and improve the structural strength of the bracket crossbeam 10, but also make the vibration modes of the bracket crossbeam 10 different at the front and rear, avoiding the problem of large vibration of the gearbox in the front-to-back direction caused by front-to-back resonance.

[0036] Therefore, by making the first bracket portion 104 suitable for connection with the gearbox and making the second bracket portion 105 set at an angle to the first bracket portion 104, not only can the stress concentration distribution be reduced, but also the bearing capacity of the bracket beam 10 in the up and down directions and the front and back directions can be improved, and the problem of large vibration of the gearbox in the front and back directions can be effectively improved while increasing the structural strength of the bracket beam 10.

[0037] In some embodiments of the present invention, the support crossbeam 10 can be formed by casting an 8 mm thick bracket, the connecting bracket 20 can be formed by stamping a 10 mm thick bracket, and the longitudinal beam bracket 40 can be formed by casting a 10 mm thick bracket. This not only meets the processing requirements of the support crossbeam 10, the connecting bracket 20, and the longitudinal beam bracket 40, thereby improving the strength of each structure, but also improves processing efficiency and reduces processing costs, which can facilitate the lightweight design of the transmission suspension assembly 100. It should be noted that the plate thickness of each structure of the support crossbeam 10, the connecting bracket 20, and the longitudinal beam bracket 40 can be specifically set and adjusted according to the installation requirements of each component.

[0038] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, an angle γ is formed between the second bracket portion 105 and the first bracket portion 104, and γ satisfies the relationship: 20°≤γ≤40°. Specifically, if the angle formed between the second bracket portion 105 and the first bracket portion 104 is too small, it will not only lead to stress concentration distribution, but also make the front and rear vibration modes of the bracket crossbeam 10 not very different, which can easily induce front and rear resonance and cause the gearbox to vibrate more in the front and rear directions; if the angle formed between the second bracket portion 105 and the first bracket portion 104 is too large, it will lead to the overall structural instability of the bracket crossbeam, resulting in low structural strength of the bracket crossbeam, and prone to deformation or denting. Therefore, by setting the angle range between the second bracket portion 105 and the first bracket portion 104, it is possible to avoid stress concentration, improve the structural strength of the bracket crossbeam 10, effectively improve the problem of large vibration of the gearbox in the front and rear directions, and improve the stability and reliability of the gearbox suspension assembly 100 structure.

[0039] In some embodiments of the present invention, the left and right ends of the second bracket portion 105 are symmetrical structures, which can reduce the occurrence of stress concentration and ensure the structural strength of the bracket beam 10.

[0040] In some embodiments of the present invention, the transitions between the various surfaces of the support beam 10 are all arc-shaped, which can effectively reduce the occurrence of stress concentration and effectively improve the structural strength of the support beam 10.

[0041] In some embodiments of the present invention, the inner side of the upper surface of the support beam 10 is a concave structure, which does not affect the installation of other components of the gearbox.

[0042] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the first bracket portion 104 includes a support portion and a plurality of first mounting holes 102 spaced apart along the left-right direction of the support portion. The first mounting holes 102 are suitable for connecting to the gearbox. The center of the first mounting hole 102 is spaced apart from the center line of the bracket cross beam 10 extending along the left-right direction. The spacing distance between the center of the first mounting hole 102 and the center line of the bracket cross beam 10 extending along the left-right direction is L, and L satisfies the relationship: 20mm≤L≤40mm.

[0043] Specifically, the bracket crossbeam 10 is provided with a plurality of first mounting holes 102 arranged in the left and right directions. The first mounting holes 102 are symmetrically distributed on the first bracket portion. The fixed installation of the gearbox is achieved through the plurality of first mounting holes 102. This not only can adapt to gearbox structures of different sizes, but also can make the force on the first bracket portion 104 more uniform, and can ensure the stability and reliability of the gearbox installation. In addition, the installation and fixation of the gearbox is achieved through the plurality of first mounting holes 102, and it can also prevent the connection between the gearbox and the bracket crossbeam 10 from failing due to deformation or damage of a certain first mounting hole 102.

[0044] Furthermore, the first mounting hole 102 adopts an asymmetric structural design in the front-to-back direction, and the center of the first mounting hole 102 is spaced apart from the center line of the bracket beam 10 extending in the left-right direction. The spacing distance between the center of the first mounting hole 102 and the center line of the bracket beam 10 extending in the left-right direction is set to L, and L is required to satisfy the relationship: 20mm≤L≤40mm. If the value of the spacing distance L is set to be small, the first mounting hole 102 will be closer to the center position of the support beam 10 in the front-to-back direction, which will make the front and rear vibration modes of the support beam 10 not much different, and it is easy to induce front-to-back resonance, resulting in large vibration of the gearbox in the front-to-back direction. In addition, when the L value is small, the angle formed between the second bracket part 105 and the first bracket part 104 will be too large, or the downward extension length of the second bracket part 105 in the front-to-back direction will be set to be small, which will not only lead to low structural strength and stability of the second bracket part 105, but also make the support beam 10 insufficient to support and bear large pressure and tension, and easily cause deformation or denting and other problems; if the value of the spacing distance L is set to be large, due to the limited height of the support beam 10, the angle formed between the second bracket part 105 and the first bracket part 104 will be too small, which will increase the volume occupied by the support beam 10 in the front-to-back direction, resulting in an increase in the weight of the support beam 10, which is not conducive to lightweight design. In addition, it will also lead to stress concentration distribution and cause large vibration of the gearbox in the front-to-back direction. Therefore, by setting the distance range between the center of the first mounting hole 102 and the center line of the bracket beam 10 extending in the left and right directions, not only can the front and rear asymmetry of the bracket beam 10 be increased, so that the front and rear vibration modes have a greater difference, but also stress concentration can be avoided, the structural strength of the bracket beam 10 can be improved, and the load-bearing capacity of the bracket beam 10 in the up and down directions and the front and rear directions can be improved. Further, the problem of large vibration of the gearbox in the front and rear directions can be improved, the installation reliability of the gearbox can be improved, the space utilization rate can be improved, and the NVH performance of the vehicle can be improved.

[0045] In some embodiments of the present invention, the longitudinal distance between the center of the first mounting hole 102 and the laterally extending centerline of the support beam 10 may be calculated based on powertrain modal analysis.

[0046] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the first bracket portion 104 also includes a plurality of reinforcing portions corresponding one to one with the first mounting holes 102, the reinforcing portions include two second mounting protrusions 103 corresponding to the upper and lower portions, the second mounting protrusions 103 are connected to the top surface or the bottom surface of the support portion, the first mounting hole 102 passes through the second mounting protrusions 103, and the thickness of the second mounting protrusions 103 is D, and D satisfies the relationship: 5mm≤D≤7mm.

[0047] Specifically, by arranging second mounting protrusions 103 of a certain thickness on both sides of the bracket beam 10 in the upper and lower directions, the second mounting protrusions 103 are connected to the top surface or bottom surface of the support portion, and the first mounting hole 102 passes through the second mounting protrusion 103. In this way, not only can the reinforcement design of the area around the first mounting hole 102 on the bracket beam 10 be achieved to prevent the first mounting hole 102 from deformation or breakage, so that the installation and fixation of the gearbox is more stable and reliable, but also the structural design of the bracket beam 10 can be optimized, which is conducive to achieving its lightweight design layout.

[0048] Furthermore, if the second mounting protrusion 103 is too thick, stress concentration will occur, reducing the fatigue life of the structure. Under long-term cyclic loading, the second mounting protrusion 103 may crack or even break. If the second mounting protrusion 103 is too thin, the structural strength of the second mounting protrusion 103 will be insufficient, making it less able to resist deformation and damage under load, and prone to deformation, fracture, and other damage. Therefore, if the second mounting protrusion 103 is too thick or too thin, it will not provide stable and reliable support or connection for the gearbox structure, especially under dynamic loads or complex stress environments, and may cause the gearbox to loosen or become unstable.

[0049] Therefore, by setting the thickness of the second mounting protrusion 103, not only can the structural strength of the second mounting protrusion 103 be effectively improved, stable and reliable support or connection can be provided for the gearbox structure, but also deformation or fracture of the first mounting hole 102 due to stress concentration can be prevented, and failure of the connection between the gearbox and the bracket cross beam 10 can be prevented, resulting in loosening or instability of the gearbox, and the fatigue life of the second mounting protrusion 103 can be extended.

[0050] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, a first connecting hole 101 is provided at both ends of the bracket crossbeam 10 in the left and right directions, and a second connecting hole 203 is provided on the connecting bracket 20. One of the first connecting hole 101 and the second connecting hole 203 extends in the up and down directions, and the other extends in the front and back directions. At least a portion of the first connecting hole 101 selectively corresponds to at least a portion of the second connecting hole 203 and is detachably connected and fixed by fasteners.

[0051] Specifically, by extending one of the first connecting hole 101 and the second connecting hole 203 in the up-down direction and the other in the front-back direction, and passing the fastener through the second connecting hole 203 and the first connecting hole 101 in sequence, at least a portion of the first connecting hole 101 is selectively corresponded to at least a portion of the second connecting hole 203, so that not only can the connection between the support beam 10 and the connecting bracket 20 be stable and reliable, but also the support beam 10 can be selectively moved relative to the connecting bracket 20 in the up-down direction and the front-back direction by adjusting the connection fixing points of the support beam 10 and the connecting bracket 20 at the first connecting hole 101 and the second connecting hole 203, thereby changing the limiting space of the gearbox structure in the up-down direction and / or the front-back direction to be suitable for installing gearbox structures of different sizes and meeting the assembly requirements of different models. Further, the versatility of the gearbox suspension assembly 100 can be improved, and the development cost and production cost of the vehicle can be reduced.

[0052] In addition, at least a portion of the first connecting hole 101 and at least a portion of the second connecting hole 203 are detachably connected and fixed by fasteners, which facilitates the installation and disassembly between the support beam 10 and the connecting bracket 20, and facilitates the subsequent inspection and replacement of the support beam 10 and the connecting bracket 20.

[0053] Combine Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, there are multiple first connection holes 101, and the multiple first connection holes 101 are spaced apart in the front-to-back direction; there are multiple second connection holes 203, and the multiple second connection holes 203 are spaced apart in the front-to-back direction; at least a portion of each second connection hole 203 corresponds to at least a portion of at least one first connection hole 101 at the same time. Specifically, by setting a plurality of first connecting holes 101 and a plurality of second connecting holes 203, and making the plurality of first connecting holes 101 and the plurality of second connecting holes 203 spaced apart in the front-to-rear direction, and at least a portion of each second connecting hole 203 simultaneously corresponding to at least a portion of at least one first connecting hole 101, this not only increases the range of selective movement of the support crossbeam 10 relative to the connecting bracket 20 in the front-to-rear direction, so as to be suitable for installing more gearbox structures of different sizes to meet the assembly requirements of more vehicle models, but also improves the stability and reliability of the connection and fixation between the support crossbeam 10 and the connecting bracket 20, avoids the failure of the connection between the support crossbeam 10 and the connecting bracket 20 due to deformation or fracture of a certain first connecting hole 101 or a certain second connecting hole 203, and improves the stability and reliability of the gearbox suspension assembly 100.

[0054] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the connecting bracket 20 includes a first bracket segment 201 and a second bracket segment 202, and the second connecting hole 203 is provided on the first bracket segment 201. The first bracket segment 201 extends in the up and down directions and is fitted and connected with the ends of the bracket beam 10 in the left and right directions. The second bracket segment 202 is connected to the upper end of the first bracket segment 201 and is located on the side of the first bracket segment 201 away from the end of the bracket beam 10. The second bracket segment 202 is suitable for being connected to the vibration damping member 30. The second bracket segment 202 is arranged at an angle relative to the first bracket segment 201, and an angle α is formed between the second bracket segment 202 and the first bracket segment 201, and α satisfies the relationship: 30°<α<60°.

[0055] Specifically, the first bracket segment 201 extends in the up and down directions, the second connecting hole 203 on the connecting bracket 20 is set on its first bracket segment 201, and the first bracket segment 201 and the ends of the bracket beam 10 in the left and right directions are fitted and connected to each other, the second bracket segment 202 is connected to the upper end of the first bracket segment 201 and is located on the side of the first bracket segment 201 away from the end of the bracket beam 10, and the second bracket segment 202 and the first bracket segment 201 are transitioned by an arc, which not only ensures the rationality and reliability of the structural setting of the connecting bracket 20, ensures the stability and reliability of the connection between the bracket beam 10 and the connecting bracket 20, but also improves the structural strength of the connecting bracket 20, optimizes the stress condition of the connecting bracket 20, and prevents the problem of stress concentration in the connecting bracket 20.

[0056] Furthermore, the shock absorber 30 is arranged between the connecting bracket 20 and the longitudinal beam bracket 40, and the second bracket segment 202 of the connecting bracket 20 is suitable for being connected to the shock absorber 30. In this way, not only can the shock absorber 30 absorb or weaken the vibration energy transmitted between the connecting bracket 20 and the longitudinal beam bracket 40, but also reduce the vibration energy transmitted from the gearbox to the frame longitudinal beam to improve the driving comfort of the vehicle, but also it can play a certain protective role for the second bracket segment 202 and the longitudinal beam bracket 40, so that the force transmission process between the second bracket segment 202 and the longitudinal beam bracket 40 can be made more uniform and smooth, and wear between the second bracket segment 202 and the longitudinal beam bracket 40 can be avoided.

[0057] Furthermore, the second bracket segment 202 is arranged at an angle relative to the first bracket segment 201, and an angle α is formed between the second bracket segment 202 and the first bracket segment 201, and α satisfies the relationship: 30°<α<60°. When the angle between the second bracket segment 202 and the first bracket segment 201 exceeds the design range, the load capacity of the formed connecting bracket 20 is low, and overload problems are prone to occur, resulting in fracture or deformation between the second bracket segment 202 and the first bracket segment 201. Therefore, setting the range of the angle formed between the second bracket segment 202 and the first bracket segment 201 can ensure that the connecting bracket 20 has sufficient structural strength and load-bearing capacity to effectively transmit the force of the decomposed powertrain, avoid damage or failure of the structure of the connecting bracket 20 when the force is small, and improve the overall structural strength and reliability of the gearbox suspension assembly 100.

[0058] Furthermore, the overall arc-shaped structure of the connecting bracket 20 not only reduces the force distribution when the support crossbeam 10 is loaded, but also utilizes the inherent elastic deformation of the connecting bracket 20 to eliminate vibration transmitted to the vehicle frame, thereby improving the NVH performance of the entire vehicle. Furthermore, the connecting bracket 20 adopts an I-beam structure, which can achieve a lightweight design without compromising structural strength.

[0059] It should be noted that the connecting bracket 20 can be adjusted according to the installation angle of the frame and the gearbox to achieve the connection between different frames and gearboxes, thereby improving the versatility of the gearbox suspension assembly 100.

[0060] In some embodiments of the present invention, the angle α between the second bracket segment 202 and the first bracket segment 201 can be set to 45°. Compared with other angles and taking into account the stress conditions of the longitudinal beam bracket 40, the efficiency and effect of the 45° angle are usually higher.

[0061] Combine Figure 1 、 Figure 2 and Figure 6As shown, the longitudinal beam bracket 40 includes a first mounting flange surface 401 and a second mounting flange surface 402. The first mounting flange surface 401 is parallel to the second bracket segment 202 and is in close contact with the shock absorber 30. The second mounting flange surface 402 is arranged at an angle relative to the first mounting flange surface 401. The second mounting flange surface 402 extends in the up and down direction and is suitable for connection to the longitudinal beam of the vehicle.

[0062] Specifically, the first mounting flange surface 401 of the longitudinal beam bracket 40 and the second bracket segment 202 are parallel to each other, and the vibration damper 30 is arranged between the second bracket segment 202 and the first mounting flange surface 401. The second bracket segment 202 and the first mounting flange surface 401 are both fitted and connected to the vibration damper 30. This not only facilitates the connection between the first mounting flange surface 401 and the second bracket segment 202, but also improves the stability and reliability of the connection between the longitudinal beam bracket 40 and the connecting bracket 20. It can also absorb and disperse the vibration energy transmitted between the longitudinal beam bracket 40 and the connecting bracket 20, thereby improving the structural strength of the gearbox suspension assembly 100.

[0063] Furthermore, the second mounting flange surface 402 is arranged at an angle relative to the first mounting flange surface 401. The second mounting flange surface 402 extends in the up and down directions and is suitable for connection with the longitudinal beam of the vehicle. This facilitates the connection between the second mounting flange surface 402 and the longitudinal beam of the vehicle, ensures that the transmission suspension assembly 100 can function normally, and improves the stability and reliability of the structural setting of the transmission suspension assembly 100.

[0064] In some embodiments of the present invention, the longitudinal beam support 40 is an I-beam structure with a rectangular bottom surface to enhance the structural strength and reliability of the longitudinal beam support 40. In addition, the I-beam structure of the longitudinal beam support 40 adopts an arc transition structure to reduce stress concentration.

[0065] Combine Figure 1 、 Figure 2 and Figure 4 As shown, an angle β is formed between the first mounting flange surface 401 and the second mounting flange surface 402, and β satisfies the relationship: 30°<β<60°, α+β=90°. This not only ensures that the second mounting flange surface 402 of the longitudinal beam bracket 40 is in a vertical state, facilitating the connection between the longitudinal beam bracket 40 and the longitudinal beam, but also improves the overall structural strength and stability of the transmission suspension assembly 100, and prevents the connecting bracket 20 and the longitudinal beam bracket 40 from deformation or breakage. In addition, this can also improve the lightweight design of the transmission suspension assembly 100, and reduce the development cost and production cost of the vehicle.

[0066] In some embodiments of the present invention, when the angle between the second bracket segment 202 and the first bracket segment 201 is set to 45°, the angle between the first mounting flange surface 401 and the second mounting flange surface 402 of the longitudinal beam bracket 40 is also set to 45°, which helps to improve the stability and reliability of the transmission suspension assembly 100.

[0067] Combine Figure 1 、 Figure 2 and Figure 6 As shown, a plurality of central mounting holes 404 and a plurality of side mounting holes 405 are provided on the second mounting flange surface 402. The centers of the plurality of central mounting holes 404 are located on the center line of the second mounting flange surface 402 extending in the up-down direction. The plurality of central mounting holes 404 are arranged at intervals in the up-down direction. The plurality of side mounting holes 405 correspond to both sides of the top central mounting hole 404 in the front-to-back direction. The line between the center of the side mounting hole 405 and the center of the bottom central mounting hole 404 is set as the side line. The side line is set at an angle of 45° to the center line of the second mounting flange surface 402 extending in the up-down direction.

[0068] Specifically, the second mounting flange surface 402 is provided with a plurality of central mounting holes 404 and a plurality of side mounting holes 405 for connection with the vehicle frame, including two central mounting holes 404 and two side mounting holes 405. The four mounting holes are arranged in an isosceles right triangle, that is, the center of one central mounting hole 404 is located at a right-angled vertex, the centers of the two side mounting holes 405 are respectively located at an acute-angled vertex, and the center of the other central mounting hole 404 is located at the midpoint of the hypotenuse. This not only reduces the occurrence of stress concentration, improves the structural strength of the longitudinal beam bracket 40, and ensures the reliable connection between the gearbox suspension assembly 100 and the frame longitudinal beam, but also contributes to the lightweight design of the gearbox suspension assembly 100.

[0069] Furthermore, the two middle mounting holes 404 and the two side mounting holes 405 are connected by arc transitions, which can optimize the structure of the second mounting flange surface 402 and prevent the edge of the second mounting flange surface 402 from being deformed or twisted due to stress concentration.

[0070] In addition, in order to ensure the stability and reliability of the installation connection between the second mounting flange surface 402 and the frame longitudinal rail, the structural arrangement of the middle mounting hole 404 and the side mounting hole 405 can be protruded relative to the second mounting flange surface 402 according to specific needs and specific installation environment, and the protruding middle mounting hole 404 and side mounting hole 405 are also connected to the second mounting flange surface 402 by an arc transition to reduce the stress at the connection between the mounting hole and the second mounting flange surface 402.

[0071] Combine Figure 1 、 Figure 2 and Figure 6 As shown, a second mounting protrusion 403 is provided on the first mounting flange surface 401, a second mounting hole is defined in the second mounting protrusion 403, and a third mounting hole is defined in the vibration damper 30. The first mounting hole and the second mounting hole correspond to each other and are connected and fixed by fasteners. Specifically, the second mounting hole is provided on the second mounting protrusion 403 of the first mounting flange surface 401, and the third mounting hole is provided on the vibration damper 30. The second mounting hole and the third mounting hole correspond to each other in structure and position. Fasteners are used to sequentially penetrate the second mounting hole and the third mounting hole, thereby connecting the first mounting flange surface 401 and the vibration damper 30. This not only makes the connection between the longitudinal beam bracket 40 and the vibration damper 30 simple, direct, stable and reliable, but also facilitates the installation and removal of the longitudinal beam bracket 40 and the vibration damper 30, and facilitates the subsequent maintenance and replacement of the longitudinal beam bracket 40 and the vibration damper 30.

[0072] Furthermore, there can be multiple second mounting holes and multiple third mounting holes, and the multiple second mounting holes and the multiple third mounting holes are arranged in a one-to-one correspondence to achieve multi-position connection between the longitudinal beam bracket 40 and the shock absorber 30 to better adapt to the frame installation.

[0073] In some embodiments of the present invention, the mounting holes may be threaded holes, and the fasteners may be bolts. The connection between the various structures of the transmission suspension assembly 100 is achieved through the cooperation between the bolts and the threaded holes. This can avoid the "zero tolerance" phenomenon and is conducive to adapting to the connection between more vehicle models and transmissions.

[0074] The vehicle according to the present invention may primarily include the aforementioned transmission mount assembly 100. Specifically, due to the higher structural strength and good versatility of the transmission mount assembly 100, its application to a vehicle can not only effectively prevent overloading of engine mount components and increase the service life of the mount components, but also reduce vehicle vibration and noise, improving vehicle operating smoothness. Furthermore, the vehicle's structural strength and stability can be enhanced, meeting the assembly requirements of different vehicle models, reducing vehicle development and production costs, facilitating vehicle lightweighting, and alleviating the problem of significant transmission vibration in the fore-aft direction, thereby improving the vehicle's NVH performance.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0076] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0077] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gearbox mount assembly, comprising: A support crossbeam (10), wherein the left and right ends of the support crossbeam (10) are respectively connected to a connecting bracket (20), a vibration damping member (30) and a longitudinal beam bracket (40), and the support crossbeam (10) is characterized in that the support crossbeam (10) includes a first bracket portion (104) and a second bracket portion (105) arranged front and rear, the first bracket portion (104) being suitable for being connected to a gearbox, and the second bracket portion (105) being arranged at an angle to the first bracket portion (104).

2. The gearbox suspension assembly according to claim 1, characterized in that: An included angle γ is formed between the second bracket portion (105) and the first bracket portion (104), and γ satisfies the relationship: 20°≤γ≤40°.

3. The gearbox mount assembly according to claim 1, characterized in that: The first bracket portion (104) includes a support portion and a plurality of first mounting holes (102) spaced apart in a left-right direction along the support portion, the first mounting holes (102) being suitable for connection with a gearbox, the center of the first mounting hole (102) being spaced apart from a center line of the bracket crossbeam (10) extending in a left-right direction, the spacing distance between the center of the first mounting hole (102) and the center line of the bracket crossbeam (10) extending in a left-right direction being L, and L satisfying the relationship: 20 mm ≤ L ≤ 40 mm.

4. The gearbox suspension assembly according to claim 3, characterized in that: The first bracket portion (104) further includes a plurality of reinforcing portions corresponding to the first mounting holes (102) one by one, the reinforcing portions including two second mounting protrusions (103) corresponding to each other above and below, the second mounting protrusions (103) being connected to the top surface or the bottom surface of the support portion, the first mounting hole (102) passing through the second mounting protrusions (103), the thickness of the second mounting protrusions (103) being D, and D satisfying the relationship: 5mm≤D≤7mm.

5. The gearbox mount assembly according to claim 1, characterized in that: Both ends of the bracket crossbeam (10) in the left and right directions are provided with first connection holes (101), and the connection bracket (20) is provided with a second connection hole (203), one of the first connection hole (101) and the second connection hole (203) is extended in the up-down direction, and the other is extended in the front-back direction, and at least a portion of the first connection hole (101) and at least a portion of the second connection hole (203) selectively correspond to each other and are detachably connected and fixed by a fastener; There are a plurality of first connection holes (101), and the plurality of first connection holes (101) are spaced apart in the front-to-back direction; there are a plurality of second connection holes (203), and the plurality of second connection holes (203) are spaced apart in the front-to-back direction; at least a portion of each second connection hole (203) corresponds to at least a portion of at least one first connection hole (101) at the same time.

6. The gearbox suspension assembly according to claim 5, characterized in that: The connecting bracket (20) comprises a first bracket segment (201) and a second bracket segment (202); the second connecting hole (203) is provided in the first bracket segment (201); the first bracket segment (201) extends in the up-down direction and is connected to the end of the bracket crossbeam (10) in the left-right direction; the second bracket segment (202) is connected to the upper end of the first bracket segment (201) and is located on a side of the first bracket segment (201) away from the end of the bracket crossbeam (10); the second bracket segment (202) is suitable for connecting to the vibration damping member (30); the second bracket segment (202) is arranged at an angle relative to the first bracket segment (201); an angle α is formed between the second bracket segment (202) and the first bracket segment (201); and α satisfies the relationship: 30°<α<60°.

7. The gearbox mount assembly according to claim 6, characterized in that: The longitudinal beam bracket (40) includes a first mounting flange surface (401) and a second mounting flange surface (402), wherein the first mounting flange surface (401) and the second bracket segment (202) are parallel to each other and are in close contact with the vibration damping member (30), and the second mounting flange surface (402) is arranged at an angle relative to the first mounting flange surface (401), and the second mounting flange surface (402) extends in the up-down direction and is suitable for connection with the longitudinal beam of the vehicle.

8. The gearbox mount assembly according to claim 7, characterized in that: An included angle β is formed between the first mounting flange surface (401) and the second mounting flange surface (402), and β satisfies the relationship: 30°<β<60°, α+β=90°.

9. The gearbox mount assembly according to claim 7, characterized in that: The second mounting flange surface (402) is provided with a plurality of middle mounting holes (404) and a plurality of side mounting holes (405), the centers of the plurality of middle mounting holes (404) are located on the center line of the second mounting flange surface (402) extending in the vertical direction, the plurality of middle mounting holes (404) are arranged at intervals in the vertical direction, and the plurality of side mounting holes (405) correspond to both sides of the top middle mounting hole (404) in the front-back direction, and the line between the center of the side mounting hole (405) and the center of the bottom middle mounting hole (404) is set as the side line, and the side line is set at an angle with the center line of the second mounting flange surface (402) extending in the vertical direction, and the angle is 45°.

10. A vehicle, characterized in that: include: The gearbox suspension assembly according to any one of claims 1 to 9.

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