Differential shell of two-gear transmission assembly of electric vehicle
A differential case, electric vehicle technology, applied in the direction of differential transmission, transmission, transmission parts, etc., can solve problems such as inability to shift gears, poor adaptability to road conditions, and inability to adjust output torque and rotational speed according to road conditions. , to achieve the effect of reliable support, good matching and compact structure
Inactive Publication Date: 2015-02-25
CHONGQING CITY XIAYI AUTOMOBILE PARTS MFG
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Problems solved by technology
[0002] The existing electric vehicle transmission assembly has a one-gear structure, that is, it cannot change gears, so its output torque and speed cannot be adjusted according to road conditions, resulting in poor road condition adaptability
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[0014] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0015] like figure 1 , 2 As shown in , 3, a differential case of a second-speed electric vehicle transmission assembly, the case 1 of the differential case is a steel casting, and the inner cavity of the case 1 is an accommodating cavity for accommodating rotating parts 1a, such as accommodating planetary gears, output bevel gears, etc. The left end and the right end of the housing 1 are respectively horizontally opened with an output bevel gear mounting hole 1b. The axis lines of the two output bevel gear mounting holes 1b are on the same straight line, and both communicate with the accommodating cavity 1a, and both Each output bevel gear mounting hole 1b is a two-stage stepped hole with a large inside and a small outside.
[0016] The left end of the housing 1 is a cylindrical part, the cylindrical part is a two-stage stepped structure with the left smal...
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The invention discloses a differential shell of a two-gear transmission assembly of an electric vehicle. An inner cavity of a shell body of the differential shell is a containing cavity used for containing a rotating component. The left end and the right end of the shell body are each horizontally provided with an output bevel gear installation hole. The left end of the shell body is provided with a cylinder portion. The big-diameter section of the cylinder section is connected with a left spherical portion, a left annular boss portion, an annular installation boss portion and a right annular boss portion from left to right in sequence. The right annular boss portion is connected with a right cylinder portion through a right spherical portion. Eight threaded holes are evenly distributed in the annular installation boss portion in the circumferential direction. The right annular boss portion is provided with an upper planet gear shaft installation hole and a lower planet gear shaft installation hole. The right annular boss portion is further provided with a locating pin hole horizontally. The differential shell of the two-gear transmission assembly of the electric vehicle is compact in structure and high in strength and reliably supports planetary gears, output bevel gears and other rotating components. According to the two-gear transmission assembly of the electric vehicle, materials are easy to obtain, manufacturing is easy, and the differential shell can be well matched with the two-gear transmission assembly of the electric vehicle.
Description
technical field [0001] The invention belongs to the field of transmissions, and in particular relates to a differential case of a transmission assembly of a second-speed electric vehicle. Background technique [0002] The existing electric vehicle transmission assembly has a one-gear structure, that is, it cannot change gears, so its output torque and rotating speed cannot be adjusted according to road conditions, resulting in poor adaptability to road conditions. In order to overcome the above-mentioned technical defects, we want to specially design a transmission assembly with two gears. At the same time, the differential case needs to be designed accordingly during the design process. The differential case is not only required to be compact in structure and high in strength, but also to be able to reliably support the rotating parts. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a differential case of a sec...
Claims
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IPC IPC(8): F16H48/40
CPCF16H57/037
Inventor 周继红
Owner CHONGQING CITY XIAYI AUTOMOBILE PARTS MFG
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