Integrated power assembly suspension support, power assembly and vehicle

Abstract

The utility model discloses an integrated power assembly suspension support, a power assembly and a vehicle, the integrated power assembly suspension support comprises a mounting seat, the rear end of the mounting seat is provided with a suspension cushion mounting surface, and the suspension cushion mounting surface is provided with a plurality of first mounting holes; the mounting base is located at the front end of the mounting seat, a gearbox end mounting surface is arranged on the mounting base, and a plurality of second mounting holes are formed in the gearbox end mounting surface; the gear selecting rocker arm is vertically mounted at the front end of the mounting seat, a gear selecting flexible shaft mounting surface is arranged on the gear selecting rocker arm, and a plurality of fixing holes are formed in the gear selecting flexible shaft mounting surface; the gear shifting rocker arm is vertically mounted in the middle of the mounting seat, a gear shifting flexible shaft mounting surface is arranged on the gear shifting rocker arm, and a plurality of third mounting holes are formed in the gear shifting flexible shaft mounting surface; and the mounting seat, the mounting base, the gear selecting rocker arm and the gear shifting rocker arm are integrated. The flexible shaft fixing support is high in reliability, strong in damping performance and reasonable in structural design, light weight of parts is effectively achieved, pipeline arrangement is facilitated, and meanwhile the material cost of the flexible shaft fixing support is reduced.

Description

Technical Field

[0001] The utility model relates to an integrated powertrain suspension bracket, a powertrain and a vehicle, and belongs to the field of heavy-duty commercial vehicles. Background Art

[0002] There are many types of fixed support methods for heavy-duty truck power system assemblies, such as: A (front end of the engine assembly) + B (flywheel end of the engine assembly), A+C (stop end of the gearbox assembly), A+D (middle end of the gearbox assembly), A+B+E (auxiliary support end of the gearbox assembly), and A+C+E.

[0003] For the two fixed support methods of power system assemblies A+C and A+C+E, since the C-point suspension is fixed on the stop end of the gearbox assembly, the fixation of the suspension directly affects the design of the vehicle's gear selector and shift shaft fixing bracket and the direction of the flexible shaft, resulting in the specialization and diversification of the gear selector and shift shaft fixing bracket, which in turn leads to a high cost of the bracket. In severe cases, gear selection and shifting are difficult due to the poor direction of the flexible shaft, affecting the driver's driving performance and safety and comfort. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides an integrated powertrain suspension bracket, a powertrain and a vehicle.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts an integrated powertrain suspension bracket, comprising:

[0006] A mounting seat, the rear end of which is provided with a suspension cushion mounting surface, and the suspension cushion mounting surface is provided with a plurality of first mounting holes for mounting the suspension cushion;

[0007] A mounting base, which is located at the front end of the mounting seat, the mounting base is provided with a gearbox end mounting surface, and the gearbox end mounting surface is provided with a plurality of second mounting holes for mounting on the gearbox assembly;

[0008] The gear selection rocker arm is vertically mounted at the front end of the mounting seat, the gear selection rocker arm is provided with a gear selection flexible shaft mounting surface, and the gear selection flexible shaft mounting surface is provided with a plurality of fixing holes for mounting the gear selection flexible shaft;

[0009] A shift rocker arm is vertically mounted in the middle of the mounting seat, the shift rocker arm is provided with a shift flexible shaft mounting surface, and the shift flexible shaft mounting surface is provided with a plurality of third mounting holes for mounting the shift flexible shaft;

[0010] The mounting seat, the mounting base, the gear selection rocker arm and the gear shift rocker arm are integrated into one piece.

[0011] In some embodiments, there are two sets of fixing holes, the hole pitch between the two sets of fixing holes is 20 - 25 mm, and internal threads are provided in the fixing holes.

[0012] In some embodiments, the third mounting hole includes two round holes and an oblong hole located in the middle of the two round holes.

[0013] In some embodiments, a bracket reinforcing rib with a wall thickness of 6 - 10 mm is provided above the middle part of the mounting seat.

[0014] In some embodiments, a bracket water leakage hole is further provided in the middle part of the mounting seat.

[0015] In some embodiments, the integrated powertrain mounting bracket is made of ZGD650 - 830; the overall structure is a hollow structure.

[0016] In the second aspect of the present utility model, there is provided a powertrain, including a shift flexible shaft, a gear selection flexible shaft, and a transmission assembly, and further including the above - mentioned integrated powertrain mounting bracket.

[0017] In some embodiments, the integrated powertrain mounting bracket is fixed in the stop area of the transmission assembly, and is installed on the side of the vehicle frame longitudinal beam in combination with a mounting cushion. The shift rocker arm and the gear selection rocker arm are fixed on the transmission assembly. The shift flexible shaft and the gear selection flexible shaft are respectively fixed on the corresponding rocker arms, and the middle parts of the shift flexible shaft and the gear selection flexible shaft are fixed on the integrated powertrain mounting bracket through flexible shaft fixing clamps.

[0018] In the third aspect of the present utility model, there is provided a vehicle, on which the above - mentioned powertrain is installed.

[0019] Compared with the prior art, the integrated powertrain mounting bracket of the present utility model has high reliability, strong shock absorption, reasonable structural design, effectively realizes the lightweight of parts, is easy to disassemble and assemble, has high connection strength, is convenient for pipeline layout, and reduces the material cost of the flexible shaft fixing bracket.

[0020] This integrated powertrain mounting bracket can improve the strength and stiffness of the overall structure, thereby improving the vibration attenuation effect of the mounting bracket structure on the powertrain excitation, reducing the vibration sensitivity, and thus improving and enhancing the vehicle NVH performance and effectively improving the vehicle driving experience. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the fixed support points of the existing powertrain assembly;

[0023] Figure 2 Schematic diagram of the installation structure of the present utility model;

[0024] Figure 3 Schematic diagram of the structure of the present utility model;

[0025] In the figure: A is the front end of the engine assembly, B is the flywheel end of the engine assembly, C is the spigot end of the transmission assembly, D is the middle end of the transmission assembly, and E is the auxiliary support end of the transmission assembly;

[0026] 1. Engine flywheel housing, 2. Mounting cushion, 3. Integrated powertrain mounting bracket, 4. Shift flexible shaft, 5. Shift rocker arm, 6. Flexible shaft fixing clamp, 7. Selective shift flexible shaft, 8. Selective shift rocker arm, 9. Transmission assembly, 10. Selective shift flexible shaft mounting surface, 11. Transmission end mounting surface, 12. Shift flexible shaft mounting surface, 13. Bracket reinforcing rib, 14. Bracket water leakage hole, 15. Mounting cushion mounting surface, 16. Mounting seat, 17. Mounting base. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of this application will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of this application and the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Without conflict, the technical features in the embodiments of this application and the embodiments can be combined with each other.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protected content of the present utility model.

[0029] As Figure 1 、 Figure 2 and Figure 3 shown, an integrated powertrain mounting bracket includes a mounting seat 16, a mounting base 17, a selective shift rocker arm 8 and a shift rocker arm 5, and the mounting seat 16, the mounting base 17, the selective shift rocker arm 8 and the shift rocker arm 5 are integrated into one body;

[0030] The rear end of the mounting seat 16 is provided with a mounting cushion mounting surface 15, and a plurality of first mounting holes for mounting the mounting cushion 2 are provided on the mounting cushion mounting surface 15;

[0031] The mounting base 17 is located at the front end of the mounting seat 16. A transmission end mounting surface 11 is provided on the mounting base 17, and a plurality of second mounting holes for mounting on the transmission assembly 9 are provided on the transmission end mounting surface 11;

[0032] The gear selection rocker arm 8 is vertically mounted at the front end of the mounting seat 16. A gear selection cable mounting surface 10 is provided on the gear selection rocker arm 8, and a plurality of fixing holes for mounting the gear selection cable 7 are provided on the gear selection cable mounting surface 10;

[0033] The shift rocker arm 5 is vertically mounted in the middle of the mounting seat 16. A shift cable mounting surface 12 is provided on the shift rocker arm 5, and a plurality of third mounting holes for mounting the shift cable 4 are provided on the shift cable mounting surface 12.

[0034] In some embodiments, as Figure 3 shown, two groups of fixing holes for mounting the gear selection cable 7 are provided at the top of the gear selection cable mounting surface 10, with two holes in each group. The hole pitch between the two groups of fixing holes is 20 - 25 mm, preferably 22 mm. The fixing holes are internally threaded with a specification of M8. The gear selection cable 7 is fixed to the mounting bracket by an M8 bolt through the cable fixing clamp 6. Since the vehicle will be matched with different engines and transmissions, the routing of the gear selection cable 7 may be different. Therefore, two groups of fixing holes are reserved on the mounting bracket to adjust and select the optimal fixing position of the gear selection cable 7.

[0035] In some embodiments, as Figure 3 shown, two Φ8.5 round holes and a long round hole of 8.5×16 are provided on the shift cable mounting surface 12. The long round hole is located in the middle of the two round holes. The shift cable 4 is fixed to the mounting bracket by an M8 bolt through the cable fixing clamp 6. Since the vehicle will be matched with different engines and transmissions, the routing of the shift cable 4 may be different. Therefore, a long round hole is reserved on the mounting bracket to adjust and select the optimal fixing position of the shift cable 4.

[0036] In some embodiments, as Figure 3 shown, a bracket reinforcing rib 13 with a wall thickness of 6 - 10 mm is provided above the middle of the mounting seat 16. The bracket reinforcing rib 13 is used to enhance the overall strength of the mounting bracket; a bracket water leakage hole 14 is also provided in the middle of the mounting seat 16. The specification of the bracket water leakage hole 14 is Φ15. To prevent the groove area of the mounting bracket from accumulating water and rusting in rainy days, the accumulated water is discharged through the bracket water leakage hole 14.

[0037] In some embodiments, the material of the integrated powertrain mounting bracket 3 is ZGD650 - 830, with a weight of 5.22 kg. The overall structure is designed with a hollow structure and is made by the process methods of casting and precision machining.

[0038] In some embodiments, such as Figure 3 shown, the first mounting holes on the mounting surface 15 of the suspension cushion include two mounting holes with a diameter of Φ19, and the suspension bracket and the suspension cushion 2 are assembled with M18 bolts; the second mounting holes on the transmission end mounting surface 11 of the mounting base 17 include four bolt mounting holes with a diameter of Φ17, and the suspension bracket is mounted on the transmission assembly 9 with M16 bolts. There are weight reduction grooves between the four bolt mounting hole positions of the mounting base 17, and reinforcing ribs are provided around it. The structural design is reasonable, and the connection strength and reliability are high.

[0039] The integrated powertrain suspension bracket of the present utility model has undergone multiple rounds of CAE simulation optimization analysis and is mounted on a 49-ton semi-trailer tractor. It has completed 9500 km of reliability tests without failure at the test site.

[0040] In the second aspect of the present utility model, as Figure 2 、 Figure 3 shown, a powertrain is provided, which includes a shift flexible shaft 4, a gear selection flexible shaft 7, and a transmission assembly 9, and further includes the integrated powertrain suspension bracket 3 described above;

[0041] The integrated powertrain suspension bracket 3 is installed between the end of the engine flywheel housing 1 and the transmission assembly 9, specifically fixed in the stop area of the transmission assembly 9 (i.e., Figure 1 the C point position in ), and is installed on the side of the frame longitudinal beam in combination with the suspension cushion 2. The shift rocker arm 5 and the gear selection rocker arm 8 are fixed on the transmission assembly 9 with bolts. The end of the shift flexible shaft 4 is fixed on the shift rocker arm 5 with a ball head bolt, and the end of the gear selection flexible shaft 7 is fixed on the gear selection rocker arm 8 with a ball head bolt. The middle parts of the respective flexible shafts are fixed on the integrated powertrain suspension bracket 3 through flexible shaft fixing clamps 6. By using the integrated powertrain suspension bracket 3 of the present utility model, the traditional shift and gear selection flexible shaft fixing brackets are directly cancelled, reducing the vehicle manufacturing cost, and also ensuring the smoothness of the flexible shaft routing, making the driver's driving and shift and gear selection more comfortable.

[0042] In the third aspect of the present utility model, a vehicle is provided, and the powertrain described above is installed on the vehicle.

[0043] The integrated powertrain suspension bracket of the present utility model has high reliability, strong shock absorption, reasonable structural design, effectively realizes the lightweight of parts, is easy to disassemble and assemble, has high connection strength, is convenient for pipeline layout, and reduces the material cost of the flexible shaft fixing bracket. This integrated powertrain suspension bracket can improve the strength and stiffness of the overall structure, thereby enhancing the vibration attenuation effect of the suspension bracket structure on the powertrain excitation, reducing the vibration sensitivity, and thus improving the vehicle NVH performance and effectively enhancing the vehicle driving experience.

[0044] The above are only embodiments of the present utility model, and common general technical solutions and / or features in the solutions are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present utility model, several deformations, improvements or equivalent replacements can be made, and they should all be covered by the scope of the claims of the present utility model. The scope of protection required by this application should be based on the content of its claims, and the specific implementation manners and the like can be used to interpret the content of the claims.

Claims

1. An integrated powertrain suspension bracket, characterized in that: include: A mounting seat (16) having a suspension cushion mounting surface (15) at its rear end, wherein the suspension cushion mounting surface (15) is provided with a plurality of first mounting holes for mounting the suspension cushion (2); A mounting base (17) located at the front end of the mounting seat (16), the mounting base (17) being provided with a gearbox end mounting surface (11), the gearbox end mounting surface (11) being provided with a plurality of second mounting holes for mounting on the gearbox assembly (9); A gear selection rocker arm (8) is vertically mounted on the front end of the mounting seat (16); a gear selection flexible shaft mounting surface (10) is provided on the gear selection rocker arm (8); and a plurality of fixing holes for mounting the gear selection flexible shaft (7) are provided on the gear selection flexible shaft mounting surface (10); A shift rocker arm (5) vertically mounted in the middle of the mounting seat (16), the shift rocker arm (5) being provided with a shift flexible shaft mounting surface (12), the shift flexible shaft mounting surface (12) being provided with a plurality of third mounting holes for mounting the shift flexible shaft (4); The mounting seat (16), the mounting base (17), the gear selection rocker arm (8) and the gear shift rocker arm (5) are integrated into one piece.

2. The integrated powertrain suspension bracket according to claim 1, characterized in that: The fixing holes are provided with two groups, the hole spacing between the two groups of fixing holes is 20-25 mm, and the fixing holes are provided with internal threads.

3. The integrated powertrain suspension bracket according to claim 1, characterized in that: The third mounting hole includes two circular holes and an oblong hole located between the two circular holes.

4. The integrated powertrain suspension bracket according to claim 1, characterized in that: A support reinforcement rib (13) with a wall thickness of 6-10 mm is provided above the middle portion of the mounting seat (16).

5. The integrated powertrain suspension bracket according to claim 1, characterized in that: A bracket water leakage hole (14) is also provided in the middle of the mounting seat (16).

6. The integrated powertrain suspension bracket according to claim 1, characterized in that: The material of the integrated powertrain suspension bracket is ZGD650-830; the overall structure adopts a hollow structure.

7. A power assembly, comprising a gear shift flexible shaft (4), a gear selection flexible shaft (7) and a gearbox assembly (9), characterized in that: It also includes the integrated powertrain suspension bracket (3) as described in any one of claims 1 to 6.

8. A power assembly according to claim 7, characterized in that: The integrated powertrain suspension bracket (3) is fixed to the stop region of the gearbox assembly (9) and is installed on the side of the frame longitudinal beam by combining with the suspension cushion (2); the shift rocker arm (5) and the gear selection rocker arm (8) are fixed to the gearbox assembly (9); the shift flexible shaft (4) and the gear selection flexible shaft (7) are respectively fixed to the corresponding rocker arms; and the middle parts of the shift flexible shaft (4) and the gear selection flexible shaft (7) are fixed to the integrated powertrain suspension bracket (3) by means of a flexible shaft fixing clamp (6).

9. A vehicle, characterized in that: The vehicle is equipped with a powertrain as described in any one of claims 7 to 8.

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