CN219013156U

CN219013156U - Coaxial 48V P1 mixed motion special transmission shaft

Info

Publication number: CN219013156U
Application number: CN202223607837.1U
Authority: CN
Inventors: 朱佳华; 杨萍; 刘骏鹏; 孙明杰; 崔航; 冯丹华
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-12
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a coaxial 48V P1 special hybrid transmission shaft, and belongs to the field of automobile transmission shafts. The technical scheme adopted by the utility model is that the coaxial 48V P1 hybrid special transmission shaft comprises a shaft body, wherein the end face of a first end of the shaft body is a middle transmission shaft mounting flange face, the end face of a second end of the shaft body is a flywheel mounting flange face, a convex ring is arranged in the middle of the shaft body, the end face of the convex ring, which is close to the second end, is a motor rotor bracket mounting flange face, a boss is arranged on the end face of the convex ring, which is close to the first end, and the end face of the boss is a starting gear ring assembly mounting flange face; the utility model can be directly connected with the engine, eliminates the influence of engine torque fluctuation on a motor transmission structure, and can also meet the requirement of compact integral structure of the engine.

Description

Coaxial 48V P1 mixed motion special transmission shaft

Technical Field

The utility model relates to the field of automobile transmission shafts, in particular to a coaxial 48V P1 hybrid special transmission shaft.

Background

The P1 motor structure can integrate more functions by one motor and has the advantages of output efficiency, fuel saving, safety and the like; the defects are difficult heat dissipation, noise vibration, high cost and the like; the structure has a small change to the structure of the engine, and is a common transmission mode in the existing automobile power technology.

In the prior art, the utility model patent with the application number of CN201721671568.1 discloses a power output end connecting assembly device of a gas engine, which comprises a first flange plate, a second flange plate, a high-elastic assembly and a shaft sleeve; the high-elastic assembly is arranged in the second flange, meshing teeth capable of meshing with each other are arranged on the high-elastic assembly and the second flange at intervals, the first flange is connected with the high-elastic assembly through bolts, one end of the shaft sleeve is connected with the high-elastic assembly through bolts, and a key slot is formed in the opening of the other end of the shaft sleeve and meshed with the driving shaft of the generator.

The application has the defects that the shaft sleeve is directly connected with the driving shaft of the generator, so that the assembly space requirement on the power assembly is large, and the modularization of multiple vehicles is not facilitated; if the shaft sleeve is connected with the generator driving shaft through other transmission assemblies, the problem that engine torsional vibration has obvious influence on the motor power transmission chain and high failure rate is caused can occur.

Disclosure of Invention

Aiming at the problems that the transmission shaft in the prior art is single in structure, the assembly space requirement on a power assembly is large, and the modularization of multiple vehicle types is not facilitated, the utility model provides the coaxial 48V P1 hybrid special transmission shaft.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a coaxial 48V P1 mixes moves special transmission shaft, including the axis body, the first end terminal surface of axis body is middle transmission shaft mounting flange face, and the axis body second end terminal surface is flywheel mounting flange face, and the axis body middle part is equipped with the bulge loop, and the terminal surface that the bulge loop is close to the second end is motor rotor support mounting flange face, and the terminal surface that the bulge loop is close to first end is equipped with the boss, and the terminal surface of boss is for starting the ring gear assembly mounting flange face, both can directly link with the engine, eliminates the influence of engine torque fluctuation to motor drive structure, can satisfy the compact needs of engine overall structure again.

Preferably, along the direction from the second end to the first end of the shaft body, the shaft body is sequentially provided with a rotary support positioning shaft shoulder and a bearing positioning shaft shoulder, and the rotary support positioning shaft shoulder and the bearing positioning shaft shoulder are both positioned between the convex ring and the second end.

Preferably, the middle transmission shaft mounting flange surface is provided with a plurality of flywheel bolt holes and a plurality of middle transmission shaft positioning pin holes for mounting connection with the engine crankshaft.

Preferably, a plurality of starting gear ring assembly mounting fixing holes and a plurality of starting gear ring assembly positioning pin holes are formed in the starting gear ring assembly mounting flange surface and are used for mounting and positioning the starting gear ring assembly.

Preferably, a plurality of motor rotor support mounting fixing holes and a plurality of motor rotor support positioning pin holes are formed in the motor rotor support mounting flange surface and are used for mounting and positioning the motor rotor support.

Preferably, the flywheel mounting flange surface and the middle transmission shaft mounting flange surface are provided with a plurality of process holes, and the process holes are used for fixing the tool.

Preferably, the outer part of the flywheel mounting flange surface is coaxially provided with a raised step surface for ensuring the coaxiality of the flywheel and the middle transmission shaft.

Preferably, a concave step surface is coaxially arranged outside the installation flange surface of the middle transmission shaft and used for ensuring the coaxiality of the middle transmission shaft and the crankshaft.

Preferably, the whole shaft body adopts a forged steel structure, so that the stability of the whole structure and the performance of the shaft body is ensured.

Compared with the prior art, the utility model provides the coaxial 48V P1 special mixing transmission shaft, which has the following beneficial effects:

1. this coaxial 48V P1 thoughtlessly moves special transmission shaft through the axis body wholly adopts the forged steel structure, guarantees the stability of axis body overall structure and performance, and the axis body is effectual with engine and motor connection, and the axis body wholly is the ladder structure, and middle transmission shaft mounting flange face, start gear ring assembly mounting flange face, motor rotor support mounting flange face, bearing location shaft shoulder, whirl become support location shaft shoulder, flywheel mounting flange face's setting both can realize axis body and engine and directly link, eliminates the influence of engine torque fluctuation to motor transmission structure, can satisfy the compact needs of engine overall structure again.

2. The coaxial 48V P1 special mixed drive shaft is provided with a raised step surface coaxially arranged outside a flywheel mounting flange surface and used for ensuring coaxiality of a flywheel and an intermediate drive shaft, and a recessed step surface coaxially arranged outside the raised step surface provided with the intermediate drive shaft mounting flange surface and used for ensuring coaxiality of the intermediate drive shaft and a crankshaft.

The utility model can be directly connected with the engine, eliminates the influence of engine torque fluctuation on a motor transmission structure, and can also meet the requirement of compact integral structure of the engine.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a top view of fig. 1 of the present utility model.

FIG. 3 is a second schematic structural view of an embodiment of the present utility model.

Fig. 4 is a top view of fig. 3 in accordance with the present utility model.

FIG. 5 is a third schematic structural view of an embodiment of the present utility model.

In the figure: 1. the middle transmission shaft is provided with a flange surface; 2. a boss; 3. a convex ring; 4. bearing positioning shaft shoulders; 5. positioning shaft shoulders of the rotary support; 6. flywheel mounting flange surface; 7. flywheel bolt holes; 8. a process hole; 9. a middle transmission shaft positioning pin hole; 10. starting a gear ring assembly mounting fixing hole; 11. starting a gear ring assembly positioning pin hole; 12. mounting and fixing holes of a motor rotor bracket; 13. positioning pin holes of a motor rotor bracket; 14. a raised step surface; 15. recessed step surfaces.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1:

referring to fig. 1-5, a coaxial 48v P1 hybrid special transmission shaft comprises a shaft body, wherein the end face of a first end of the shaft body is a middle transmission shaft mounting flange face 1, the end face of a second end of the shaft body is a flywheel mounting flange face 6, a convex ring 3 is arranged in the middle of the shaft body, the end face of the convex ring 3, which is close to the second end, is a motor rotor bracket mounting flange face, a boss 2 is arranged on the end face of the convex ring 3, which is close to the first end, and the end face of the boss 2 is a starting gear ring assembly mounting flange face; the whole shaft body is made of forged steel, so that the stability of the whole structure and performance of the shaft body is ensured, and the engine and the motor are effectively connected through the shaft body; specifically, the middle transmission shaft mounting flange surface 1 is provided with a plurality of flywheel bolt holes 7 and a plurality of middle transmission shaft positioning pin holes 9 for mounting connection with an engine crankshaft, wherein the number of flywheel bolt holes 7 is preferably 10, the flywheel bolt holes are arrayed along the circumferential direction, and the number of the middle transmission shaft positioning pin holes 9 is preferably 1; a plurality of starting gear ring assembly mounting fixing holes 10 and a plurality of starting gear ring assembly positioning pin holes 11 are formed in the starting gear ring assembly mounting flange surface and are used for mounting and positioning of the starting gear ring assembly, wherein the number of the starting gear ring assembly mounting fixing holes 10 is preferably 10, the starting gear ring assembly mounting fixing holes are distributed in an array mode along the circumferential direction, and the number of the starting gear ring assembly positioning pin holes 11 is preferably 1; it should be noted that when the gear ring is not required to be driven, the gear ring is not required to be installed on the installation flange surface of the starting gear ring assembly, a plurality of motor rotor support installation fixing holes 12 and a plurality of motor rotor support positioning pin holes 13 are formed in the installation flange surface of the motor rotor support and are used for installation and positioning of the motor rotor support, wherein the number of the motor rotor support installation fixing holes 12 is preferably 10, the motor rotor support fixing holes are distributed in an array manner along the circumferential direction, and the number of the motor rotor support positioning pin holes 13 is preferably 2; further, along the direction of the second end to the first end of the shaft body, the shaft body is sequentially provided with a rotary support positioning shaft shoulder 5 and a bearing positioning shaft shoulder 4, the rotary support positioning shaft shoulder 5 and the bearing positioning shaft shoulder 4 are both positioned between the convex ring 3 and the second end, the bearing positioning shaft shoulder 4 is used for mounting and fixing a bearing, the bearing and the bearing positioning shaft shoulder 4 are connected in an interference fit mode, the rotary support positioning shaft shoulder 5 is used for mounting and fixing a rotary support, a flywheel mounting flange surface 6 is used for mounting and fixing a flywheel, a plurality of process holes 8 are formed in the flywheel mounting flange surface 6 and an intermediate transmission shaft mounting flange surface 1, the process holes 8 are used for enabling two ends of the shaft body to be respectively connected with a motor and an engine fixing tool, and the transmission shaft can be directly connected with the engine, so that the influence of torque fluctuation of the engine on a motor transmission structure is eliminated, and the requirement of compact whole structure of the engine can be met.

Example 2:

referring to fig. 1 to 5, basically the same as embodiment 1, further, the outer part of the flywheel mounting flange surface 6 is coaxially provided with a raised step surface 14 for ensuring the coaxiality of the flywheel and the intermediate transmission shaft, and the outer part of the raised step surface 14 provided with the intermediate transmission shaft mounting flange surface 1 is coaxially provided with a recessed step surface 15 for ensuring the coaxiality of the intermediate transmission shaft and the crankshaft.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a coaxial 48V P1 thoughtlessly moves special transmission shaft, includes the axis body, its characterized in that, the first terminal surface of axis body is intermediate drive shaft mounting flange face (1), and the axis body second terminal surface is flywheel mounting flange face (6), and the axis body middle part is equipped with bulge loop (3), and the terminal surface that bulge loop (3) are close to the second end is motor rotor support mounting flange face, and the terminal surface that bulge loop (3) are close to first end is equipped with boss (2), and the terminal surface of boss (2) is starting gear ring assembly mounting flange face.

2. The coaxial 48V P1 hybrid special transmission shaft according to claim 1, wherein a rotary support positioning shaft shoulder (5) and a bearing positioning shaft shoulder (4) are sequentially arranged on the shaft body along the direction from the second end to the first end of the shaft body, and the rotary support positioning shaft shoulder (5) and the bearing positioning shaft shoulder (4) are both positioned between the convex ring (3) and the second end.

3. The coaxial 48V P1 hybrid special transmission shaft according to claim 1, wherein a plurality of flywheel bolt holes (7) and a plurality of flywheel bolt holes (7) of the intermediate transmission shaft positioning pin holes (9) are arranged on the intermediate transmission shaft mounting flange surface (1) and penetrate through to the flywheel mounting flange surface (6).

4. The coaxial 48V P1 hybrid special transmission shaft according to claim 2, wherein a plurality of starting gear ring assembly mounting fixing holes (10) and a plurality of starting gear ring assembly positioning pin holes (11) are formed on the starting gear ring assembly mounting flange surface.

5. A coaxial 48v P1 hybrid propeller shaft according to claim 3, wherein a plurality of motor rotor bracket mounting and fixing holes (12) and a plurality of motor rotor bracket positioning pin holes (13) are provided on the motor rotor bracket mounting flange surface.

6. The coaxial 48V P1 hybrid special transmission shaft according to claim 2, wherein a flywheel mounting flange surface (6) and an intermediate transmission shaft mounting flange surface (1) are provided with a plurality of process holes (8), and the process holes (8) are used for fixing a tool.

7. The coaxial 48v P1 hybrid propeller shaft of claim 5, wherein the flywheel mounting flange face (6) is externally and coaxially provided with a raised step face (14).

8. The coaxial 48v P1 hybrid propeller shaft according to claim 6, wherein a concave step surface (15) is coaxially provided outside the intermediate propeller shaft mounting flange surface (1).

9. The special coaxial 48V P1 hybrid transmission shaft according to any one of claims 1 to 7, wherein the shaft body is made of forged steel.