A multi-gear external spline coupling pinion

Abstract

The utility model discloses a kind of multi-gear outer spline coupling gear shaft, including gear shaft body, gear shaft body includes main shaft, the front end of main shaft is connected with first shaft body, the front end of first shaft body is connected with second shaft body, the front end of second shaft body is connected with front end shaft body, the rear end of main shaft is connected with rear end shaft body, a plurality of first spline grooves are provided on main shaft, a plurality of second spline grooves are provided on front end shaft body, first bearing range part is arranged between first shaft body and second shaft body, first washer groove is arranged on the side of first bearing range part, second bearing range part is arranged between main shaft and rear end shaft body, and second washer groove is arranged on the side of second bearing range part, positioning ring groove is further provided on front end shaft body, mounting groove is arranged on the surface of rear end shaft body, the front end of gear shaft body is further provided with center hole, the tail end of gear shaft body is provided with connecting groove, connecting spline is arranged on the inner side of connecting groove, the utility model has the advantages of reasonable structure, simple structure and high assembly precision.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission components, and in particular to a multi-stage external spline connecting gear shaft. Background Technology

[0002] An externally splined gear shaft is a mechanical transmission component that transmits power and connects to a shaft with external splines and matching internally splined parts (such as gears or couplings) through spline meshing. Existing splined gear shafts typically employ a single external spline structure. In applications requiring multi-speed transmission (such as gearboxes and construction machinery), this necessitates the combination of multiple independent components, resulting in complex structures, high assembly precision requirements, and reduced transmission efficiency. To address these issues, a solution is proposed below. Utility Model Content

[0003] The purpose of this invention is to provide a multi-stage external spline connecting gear shaft, which has the advantages of simple structure and high assembly precision.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A multi-stage external spline coupling gear shaft includes a gear shaft body, the gear shaft body including a main shaft, a first shaft body connected to the front end of the main shaft, a second shaft body connected to the front end of the first shaft body, a front end shaft body connected to the front end of the second shaft body, and a rear end shaft body connected to the rear end of the main shaft. The main shaft is provided with a plurality of first spline grooves, the front end shaft body is provided with a plurality of second spline grooves, a first bearing stop is provided between the first shaft body and the second shaft body, a first washer groove is provided on one side of the first bearing stop, and a second bearing stop is provided between the main shaft and the rear end shaft body, and a second washer groove is provided on one side of the second bearing stop.

[0005] Preferably, a positioning ring groove is also provided on the front end shaft.

[0006] Preferably, the surface of the rear shaft is provided with a mounting groove.

[0007] Preferably, the front end of the gear shaft body is also provided with a central hole.

[0008] Preferably, the tail end of the gear shaft body is provided with a connecting groove, and the inner side of the connecting groove is provided with a connecting spline.

[0009] The beneficial effects of this utility model are as follows: the first and second spline grooves facilitate the meshing connection between the gear shaft body and the gearbox gear components; the first bearing stop enables the bearing to be limited and installed; the second bearing stop enables the bearing to be limited and installed; and the first and second bearing stops are located on the same straight line with equal concentricity, which ensures the accuracy of the installation between the gear shaft and the gearbox components. By inserting the external connecting gear component into the connecting groove and meshing with the connecting spline, the connection between the gear shaft body and the external gear can be achieved. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a partial structural cross-sectional view of an embodiment; Figure 3 This is a cross-sectional view of the rear shaft in the embodiment.

[0011] Reference numerals in the attached drawings: 1. Gear shaft body; 2. Main shaft; 3. First shaft body; 4. Second shaft body; 5. Front shaft body; 6. Rear shaft body; 7. First spline groove; 8. Second spline groove; 9. First bearing stop; 10. First washer groove; 11. Second bearing stop; 12. Second washer groove; 13. Locating ring groove; 14. Mounting groove; 15. Center hole; 16. Connecting groove; 17. Connecting spline. Detailed Implementation

[0012] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model's concept should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.

[0013] like Figures 1 to 3 As shown, a multi-gear external spline connection gear shaft includes a gear shaft body 1, a main shaft 2, a first shaft 3 connected to the front end of the main shaft 2, a second shaft 4 connected to the front end of the first shaft 3, a front shaft 5 connected to the front end of the second shaft 4, and a rear shaft 6 connected to the rear end of the main shaft 2. The main shaft 2 is provided with a plurality of first spline grooves 7, and the front shaft 5 is provided with a plurality of second spline grooves 8. The first spline grooves 7 and the second spline grooves 8 facilitate meshing connection between the gear shaft body 1 and the gearbox gear components.

[0014] A first bearing stop 9 is provided between the first shaft 3 and the second shaft 4. A first washer groove 10 is provided on one side of the first bearing stop 9. The first bearing stop 9 allows for the bearing to be positioned and installed, and the first washer groove 10 allows a washer to be added between the bearing and the connecting gear shaft to ensure the stability of the bearing connection. A second bearing stop is provided between the main shaft 2 and the rear shaft 6, and a second washer groove 12 is provided on one side of the second bearing stop. The second bearing stop allows for the bearing to be positioned and installed, and the second washer groove 12 allows a washer to be added between the bearing and the connecting gear shaft to ensure the stability of the bearing connection. Furthermore, the first bearing stop 9 and the second bearing stop are located on the same central straight line, that is, they have equal concentricity, which ensures the accuracy of the installation between the connecting gear shaft and the gearbox components.

[0015] The front shaft 5 is also provided with a positioning ring groove 13, which facilitates the positioning connection between the front end of the gear shaft and the gearbox component, so as to make the installation position of the gear shaft more accurate. The surface of the rear shaft 6 is provided with a mounting groove 14, which facilitates the installation connection between the rear shaft 6 and the gearbox component.

[0016] The front end of the gear shaft body 1 is also provided with a central hole 15, which facilitates the positioning and connection between the gear shaft body 1 and the gearbox component. The rear end of the gear shaft body 1 is provided with a connecting groove 16, and the inner side of the connecting groove 16 is provided with a connecting spline 17. By inserting an external connecting gear component into the connecting groove 16 and engaging with the connecting spline 17, the connection between the gear shaft body 1 and the external gear can be realized.

[0017] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-stage external spline connecting gear shaft, characterized in that, The device includes a gear shaft body (1), which includes a main shaft (2). The front end of the main shaft (2) is connected to a first shaft body (3), the front end of the first shaft body (3) is connected to a second shaft body (4), the front end of the second shaft body (4) is connected to a front shaft body (5), and the rear end of the main shaft (2) is connected to a rear shaft body (6). The main shaft (2) is provided with a plurality of first spline grooves (7), and the front shaft body (5) is provided with a plurality of second spline grooves (8). A first bearing stop (9) is provided between the first shaft body (3) and the second shaft body (4), and a first washer groove (10) is provided on one side of the first bearing stop (9). A second bearing stop (11) is provided between the main shaft (2) and the rear shaft body (6), and a second washer groove (12) is provided on one side of the second bearing stop (11).

2. The multi-stage external spline connecting gear shaft according to claim 1, characterized in that, The front end shaft (5) is also provided with a positioning ring groove (13).

3. A multi-stage external spline connecting gear shaft according to claim 2, characterized in that, The surface of the rear shaft (6) is provided with a mounting groove (14).

4. A multi-stage external spline connecting gear shaft according to claim 3, characterized in that, The front end of the gear shaft body (1) is also provided with a central hole (15).

5. A multi-stage external spline connecting gear shaft according to claim 4, characterized in that, The tail end of the gear shaft body (1) is provided with a connecting groove (16), and a connecting spline (17) is provided on the inner side of the connecting groove (16).

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