Split combined type intermediate shaft

Abstract

The utility model relates to a split combined type intermediate shaft which comprises an intermediate shaft body, a first fixed gear and a second fixed gear are arranged on the shaft body, the first fixed gear, the second fixed gear and the shaft body are integrally formed, and a first movable gear and a second movable gear are sequentially installed from one side of the second fixed gear to the end portion of the shaft body. By means of the structural design, gears close to each other are machined separately, the problem that the gears interfere with each other in the machining process is solved, and the machining difficulty of the intermediate shaft is lowered.

Description

Technical Field

[0001] This utility model relates to the field of intermediate shaft manufacturing technology, and in particular to a split-type modular intermediate shaft. Background Technology

[0002] An intermediate shaft is a shaft in a car's gearbox. Its function is to connect the primary and secondary shafts, allowing the gear shift lever to select different gears to engage, enabling the secondary shaft to output different speeds, directions, and torques. The intermediate shaft consists of multiple gears mounted on it. In some models, the spacing between adjacent gears is very small. During gear shaping on the intermediate shaft, interference between adjacent gears can easily occur, affecting gear machining and even causing damage. This increases the manufacturing difficulty of the intermediate shaft and reduces its production quality.

[0003] Based on the above technical problems, the inventors, through design and development, proposed a split-type intermediate shaft, which separates some gears from the shaft of the intermediate shaft, allowing gears that are close to each other to be processed separately, thus avoiding the problem of mutual interference during gear processing. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a modular intermediate shaft.

[0005] This utility model is achieved through the following technical solution: a split-type modular intermediate shaft is provided, including an intermediate shaft body, on which a first fixed gear and a second fixed gear are provided. The first fixed gear and the second fixed gear are integrally formed with the shaft body, and a first movable gear and a second movable gear are sequentially installed from one side of the second fixed gear to the end of the shaft body.

[0006] Preferably, a first spline is provided on the shaft body, and a spline groove that mates with the first spline is provided on the inner wall of the first movable gear, and the first movable gear is interference-fitted with the shaft body through the first spline.

[0007] Preferably, the first spline is divided into a first spline connecting part and a first spline guiding part by a first annular groove. The first movable gear is installed into the first spline connecting part through the first spline guiding part. One side of the first movable gear is limited by a first boss on the shaft, and the other side is limited by a first retaining ring installed in the first annular groove.

[0008] Preferably, a second spline is provided on the shaft body, and a spline groove that mates with the second spline is provided on the inner wall of the second movable gear, and the second movable gear is interference-fitted with the shaft body through the second spline.

[0009] Preferably, the second spline is divided into a second spline connecting part and a second spline introducing part by a second annular groove. The second movable gear is installed into the second spline connecting part through the second spline introducing part. One side of the second movable gear is limited by a second boss on the shaft, and the other side is limited by a second retaining ring installed in the second annular groove.

[0010] The beneficial effects of this utility model are as follows:

[0011] This invention separates the machining of closely spaced gears, avoiding interference during gear machining, preventing damage during gear machining, reducing the machining difficulty of the intermediate shaft, and improving the machining quality of the intermediate shaft. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the shaft of this utility model;

[0014] Figure 3 This is a longitudinal sectional view of the first movable gear of this utility model;

[0015] Figure 4 This is a longitudinal sectional view of the second movable gear of this utility model;

[0016] As shown in the figure:

[0017] 1. Shaft body; 2. First fixed gear; 3. Second fixed gear; 4. First movable gear; 5. Second movable gear; 6. First spline connecting part; 7. First annular groove; 8. First spline guide part; 9. First boss; 10. First retaining ring; 11. Second annular groove; 12. Second spline connecting part; 13. Second spline guide part; 14. Second boss; 15. Second retaining ring. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0019] like Figure 1-4 As shown, the present invention includes an intermediate shaft body 1, on which a first fixed gear 2 and a second fixed gear 3 are provided. The first fixed gear 2 and the second fixed gear 3 are integrally formed with the shaft body 1. A first movable gear 4 and a second movable gear 5 are sequentially installed from one side of the second fixed gear 3 to the end of the shaft body 1.

[0020] A first spline is provided on the shaft 1, and a spline groove that mates with the first spline is provided on the inner wall of the first movable gear 4. The first movable gear 4 is interference-fitted with the shaft 1 through the first spline. The first spline is divided into a first spline connecting part 6 and a first spline guiding part 8 by a first annular groove 7. The first movable gear 4 is installed into the first spline connecting part 6 through the first spline guiding part 8. One side of the first movable gear 4 is limited by a first boss 9 on the shaft 1, and the other side is limited by a first retaining ring 10 installed in the first annular groove 7. The cooperation of the first boss 9 and the first retaining ring 10 further enhances the stability of the installation of the first movable gear 4.

[0021] A second spline is provided on the shaft 1, and a spline groove that mates with the second spline is provided on the inner wall of the second movable gear 5. The second movable gear 5 is interference-fitted with the shaft 1 through the second spline. The second spline is divided into a second spline connecting part 12 and a second spline guiding part 13 by a second annular groove 11. The second movable gear 5 is mounted to the second spline connecting part 12 through the second spline guiding part 13. One side of the second movable gear 5 is limited by a second boss 14 on the shaft 1, and the other side is limited by a second retaining ring 15 installed in the second annular groove 11. The cooperation of the second boss 14 and the second retaining ring 15 further enhances the stability of the second movable gear 5 during installation.

[0022] During the machining of the intermediate shaft, the first fixed gear 2 and the second fixed gear 3 are first machined on the shaft body 1, and the first movable gear 4 and the second movable gear 5 are machined separately. Then, the first movable gear 4 is installed on the shaft body 1, and the first retaining ring 10 is placed in the first annular groove 7. The first movable gear 4 is limited by the first boss 9 and the first retaining ring 10. Next, the second movable gear 5 is installed on the shaft body 1, and the second retaining ring 15 is placed in the second annular groove 11. The second movable gear 5 is limited by the second boss 14 and the second retaining ring 15. The first movable gear 4 and the second fixed gear 3 are separately set from the shaft body 1, which allows the second fixed gear 3 and the first movable gear 4 to be machined separately, avoiding interference problems during gear shaping.

[0023] This invention separates the machining of closely spaced gears, avoiding interference during gear machining, preventing damage during gear machining, reducing the machining difficulty of the intermediate shaft, and improving the machining quality of the intermediate shaft.

[0024] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A split-type modular intermediate shaft, characterized in that: It includes an intermediate shaft body, on which a first fixed gear and a second fixed gear are provided. The first fixed gear and the second fixed gear are integrally formed with the shaft body. The first movable gear and the second movable gear are sequentially installed from one side of the second fixed gear to the end of the shaft body.

2. The split-type modular intermediate shaft according to claim 1, characterized in that: A first spline is provided on the shaft, and a spline groove that mates with the first spline is provided on the inner wall of the first movable gear. The first movable gear is interference-fitted with the shaft through the first spline.

3. A split-type modular intermediate shaft according to claim 2, characterized in that: The first spline is divided into a first spline connecting part and a first spline guiding part by a first annular groove. The first movable gear is installed into the first spline connecting part through the first spline guiding part. One side of the first movable gear is limited by a first boss on the shaft, and the other side is limited by a first retaining ring installed in the first annular groove.

4. A split-type modular intermediate shaft according to claim 1, characterized in that: A second spline is provided on the shaft, and a spline groove that mates with the second spline is provided on the inner wall of the second movable gear. The second movable gear is interference-fitted with the shaft through the second spline.

5. A split-type modular intermediate shaft according to claim 4, characterized in that: The second spline is divided into a second spline connecting part and a second spline introducing part by a second annular groove. The second movable gear is installed into the second spline connecting part through the second spline introducing part. One side of the second movable gear is limited by the second boss on the shaft, and the other side is limited by the second retaining ring installed in the second annular groove.

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