Composite power assembly suspension assembly

Abstract

The utility model relates to a combined type power assembly suspension assembly which comprises a suspension shock pad arranged on a vehicle frame and an engine support arranged on an engine, the suspension shock pad is provided with a conical concave hole, the engine support is provided with a conical boss, and the suspension shock pad and the engine support are positioned through the conical concave hole and the conical boss and are connected through assembly bolts. The suspension shock pad and the engine support are positioned through the conical concave hole and the conical boss, the problem that when the suspension shock pad and the engine support are assembled, assembly is difficult due to the fact that installation holes are difficult to align is solved, lapping is more convenient, and assembly is more accurate. And meanwhile, the problem that the vibration isolation performance of the suspension shock pad is reduced due to assembly stress in the suspension shock pad caused by assembly deviation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a composite powertrain suspension assembly. Background Art

[0002] As the domestic heavy-duty truck market gradually moves towards high-end, heavy-duty truck drivers are gradually becoming younger, and higher and higher requirements are placed on driving comfort and reliability. The traditional inclined powertrain suspension cushion has problems such as poor limiting and poor assembly consistency. The improved wedge suspension has solved the limiting problem well, but the Y-direction stiffness is small and the three-direction stiffness is not high enough. Utility Model Content

[0003] The purpose of the utility model is to provide a composite powertrain suspension assembly in view of the deficiencies in the prior art. The suspension shock-absorbing pad adopts a rubber bushing structure, the casting bracket has high processing accuracy, the rubber body has good stiffness consistency after vulcanization, the stiffness in three directions is more uniform, it has good limiting, tensile and torsion resistance, and at the same time has good vibration isolation performance and limiting function.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A composite powertrain suspension assembly comprises a suspension shock-absorbing pad arranged on a vehicle frame and an engine bracket arranged on an engine, wherein the suspension shock-absorbing pad is provided with a conical recessed hole, and the engine bracket is provided with a conical boss. The suspension shock-absorbing pad and the engine bracket are positioned through the conical recessed hole and the conical boss, and are connected through assembly bolts.

[0006] Preferably, the suspension shock-absorbing pad comprises a casting bracket and a rubber bushing, one end of the casting bracket is connected to the vehicle frame, and the other end of the casting bracket is provided with the rubber bushing.

[0007] Preferably, the rubber bushing includes a rubber bushing outer frame and a rubber bushing inner frame, the rubber bushing outer frame is arranged at the lower end of the casting bracket, the casting bracket is provided with connecting bolts, and the rubber bushing outer frame is fixed to the lower end of the casting bracket by connecting bolts; the rubber bushing outer frame is provided with the rubber bushing inner frame, and the rubber bushing inner frame extends out from the through hole provided in the casting bracket.

[0008] Preferably, the rubber bushing outer frame and the rubber bushing inner frame are vulcanized and bonded with a rubber body.

[0009] Preferably, the tapered recessed hole is provided at the upper end of the rubber bushing inner skeleton, and the rubber bushing inner skeleton and the engine bracket are positioned via the tapered recessed hole and the tapered boss, and are connected via the assembly bolts.

[0010] Preferably, one end of the engine bracket is connected to the engine, and the other end of the engine bracket is provided with the conical boss.

[0011] Preferably, the casting bracket is also provided with reinforcing ribs.

[0012] Preferably, the casting bracket is cast carbon steel.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] 1. The casting bracket is made of cast carbon steel, with good strength and mature parts processing technology. It is suitable for mass production, with high product consistency and relatively low cost, which is convenient for mass loading and use; the rubber bushing outer frame and rubber bushing inner frame are vulcanized and connected. After vulcanization, the rubber body has good rigidity consistency and more uniform rigidity in three directions. It has good limit, tensile and torsion resistance, as well as good vibration isolation performance and limit function;

[0015] 2. The suspension shock absorber pad and the engine bracket are positioned by means of a conical recessed hole and a conical boss, so as to solve the assembly difficulty problem caused by the difficulty in aligning the mounting holes when assembling the suspension shock absorber pad and the engine bracket. The conical boss at the lower end of the engine bracket cooperates with the conical recessed hole at the upper end of the suspension shock absorber pad to perform guided positioning, thereby making assembly more convenient and more precise. At the same time, it avoids the problem of assembly stress inside the suspension shock absorber pad due to assembly deviation, thereby reducing the vibration isolation performance of the suspension shock absorber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the suspension shock-absorbing pad in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the engine bracket in the utility model.

[0019] Reference numerals

[0020] 10. Suspension shock absorber pad; 11. Casting bracket; 12. Connecting bolts; 13. Rubber bushing outer frame; 14. Rubber bushing inner frame; 15. Rubber body; 16. Conical concave hole; 17. Reinforcement rib; 20. Assembly bolts; 30. Engine bracket; 31. Conical boss. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] like Figure 1-Figure 3 As shown, a composite powertrain suspension assembly includes a suspension shock-absorbing pad 10 arranged on a vehicle frame and an engine bracket 30 arranged on an engine. The suspension shock-absorbing pad 10 is provided with a conical recessed hole 16, and the engine bracket 30 is provided with a conical boss 31. The suspension shock-absorbing pad 10 and the engine bracket 30 are positioned by the conical recessed hole 16 and the conical boss 31, and are connected by assembly bolts 20.

[0023] The suspension shock-absorbing pad 10 and the engine bracket 30 are positioned by the conical recessed hole 16 and the conical boss 31, so as to solve the assembly difficulty problem caused by the difficulty in aligning the mounting holes when assembling the suspension shock-absorbing pad 10 and the engine bracket 30. The conical boss 31 at the lower end of the engine bracket 30 cooperates with the conical recessed hole 16 at the upper end of the suspension shock-absorbing pad 10 to perform guided positioning, so that the assembly is more convenient and the assembly is more precise.

[0024] The suspension shock-absorbing pad 10 comprises a casting bracket 11 and a rubber bushing. One end of the casting bracket 11 is connected to the vehicle frame, and the other end of the casting bracket 11 is provided with a rubber bushing.

[0025] The rubber bushing includes a rubber bushing outer frame 13 and a rubber bushing inner frame 14. The rubber bushing outer frame 13 is arranged at the lower end of the casting bracket 11. The casting bracket 11 is provided with connecting bolts 12. The rubber bushing outer frame 13 is fixed to the lower end of the casting bracket 11 by the connecting bolts 12; the rubber bushing outer frame 13 is provided with a rubber bushing inner frame 14, and the rubber bushing inner frame 14 extends out from the through hole provided in the casting bracket 11.

[0026] The connecting bolts 12 are high-strength bolts with a grade of 10.9 or above, connecting the casting bracket 11 and the rubber bushing outer frame 13;

[0027] The rubber bushing outer frame 13 is made of PA600 material by stamping, has 4 mounting holes on the upper part, and is connected to the casting bracket 11 by connecting bolts 12;

[0028] The rubber bushing outer frame 13 and the rubber bushing inner frame 14 are vulcanized and bonded with a rubber body 15 .

[0029] The rubber body 15 is formed by vulcanization of natural rubber, and is bonded to the rubber bushing outer frame 13 and the rubber bushing inner frame 14 through rubber vulcanization.

[0030] A conical recessed hole 16 is provided at the upper end of the rubber bushing inner frame 14 . The rubber bushing inner frame 14 and the engine bracket 30 are positioned through the conical recessed hole 16 and the conical boss 31 , and are connected through the assembly bolts 20 .

[0031] The rubber bushing inner frame 14 is formed by turning a shaft sleeve and is connected to the engine bracket 30 by assembling bolts 20 .

[0032] One end of the engine bracket 30 is connected to the engine, and the other end of the engine bracket 30 is provided with a conical boss 31 .

[0033] The engine bracket 30 is cast by coated sand process and made of ZG310-570 cast carbon steel. It has good strength, mature parts processing technology, is suitable for mass production, has high product consistency, is relatively low in cost, and is easy to use in batches.

[0034] The casting bracket 11 is also provided with a reinforcing rib 17. The casting bracket 11 is provided with the reinforcing rib 17 to increase the hardness and avoid tearing and disconnection caused by the casting bracket 11.

[0035] The casting bracket 11 is cast carbon steel. The casting bracket 11 is cast by coated sand process, and is made of ZG310-570 cast carbon steel, which has good strength, mature parts processing technology, is suitable for mass production, has high product consistency, and is relatively low in cost, and is convenient for mass loading and use.

Claims

1. A composite powertrain suspension assembly, characterized in that: The invention comprises a suspension shock-absorbing pad (10) arranged on a vehicle frame and an engine bracket (30) arranged on an engine, wherein the suspension shock-absorbing pad (10) is provided with a conical recessed hole (16), and the engine bracket (30) is provided with a conical boss (31). The suspension shock-absorbing pad (10) and the engine bracket (30) are positioned via the conical recessed hole (16) and the conical boss (31), and are connected via assembly bolts (20).

2. The composite powertrain suspension assembly according to claim 1, characterized in that: The suspension shock-absorbing pad (10) comprises a casting bracket (11) and a rubber bushing; one end of the casting bracket (11) is connected to the vehicle frame, and the other end of the casting bracket (11) is provided with the rubber bushing.

3. The composite powertrain suspension assembly according to claim 2, characterized in that: The rubber bushing comprises a rubber bushing outer frame (13) and a rubber bushing inner frame (14); the rubber bushing outer frame (13) is arranged at the lower end of the casting bracket (11); the casting bracket (11) is provided with connecting bolts (12); the rubber bushing outer frame (13) is fixed to the lower end of the casting bracket (11) by the connecting bolts (12); the rubber bushing outer frame (13) is provided with the rubber bushing inner frame (14), and the rubber bushing inner frame (14) protrudes from a through hole provided in the casting bracket (11).

4. The composite powertrain suspension assembly according to claim 3, characterized in that: The rubber bushing outer frame (13) and the rubber bushing inner frame (14) are vulcanized and bonded with a rubber body (15).

5. The composite powertrain suspension assembly according to claim 4, characterized in that: The conical recessed hole (16) is provided at the upper end of the rubber bushing inner frame (14); the rubber bushing inner frame (14) and the engine bracket (30) are positioned via the conical recessed hole (16) and the conical boss (31) and are connected via the assembly bolts (20).

6. The composite powertrain suspension assembly according to claim 1, characterized in that: One end of the engine bracket (30) is connected to the engine, and the other end of the engine bracket (30) is provided with the conical boss (31).

7. The composite powertrain suspension assembly according to claim 2, characterized in that: The casting bracket (11) is also provided with reinforcing ribs (17).

8. The composite powertrain suspension assembly according to claim 2, characterized in that: The casting bracket is cast carbon steel.

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