一种双联齿轮组件

Abstract

本实用新型公开了一种双联齿轮组件，包括第一齿轮与第二齿轮，第一齿轮和第二齿轮为斜齿轮且同轴套设于齿轮轴外侧，还包括第一齿轮和第二齿轮的内壁设有键槽一，齿轮轴的外壁设有键槽二，键槽二内安装有平键，第一齿轮和第二齿轮通过键槽一与平键的配合依次卡接在齿轮轴外，实现第一齿轮和第二齿轮的周向定位；第一齿轮远离第二齿轮一侧设有限位盘，第二齿轮远离第一齿轮一侧设有限位环，限位盘与齿轮轴一体成型，限位环通过螺钉一与平键固接，限位盘和限位环限制第一齿轮和第二齿轮的轴向位移，通过平键、限位盘、限位环的设置，实现第一齿轮与第二齿轮的安装，同时便于第一齿轮与第二齿轮的拆卸，提高齿轮组的实用性。

Claims

1. A double gear assembly comprising a first gear and a second gear, the first and second gears being helical gears and coaxially disposed outside a gear shaft, characterized in that, Also includes: The inner walls of the first gear and the second gear are provided with a keyway 1, and the outer wall of the gear shaft is provided with a keyway 2. A flat key is installed in the keyway 2. The first gear and the second gear are sequentially engaged with the gear shaft through the cooperation of the keyway 1 and the flat key, thereby realizing the circumferential positioning of the first gear and the second gear.

2. The double gear assembly according to claim 1, characterized in that: A limiting disc is provided on the side of the first gear away from the second gear, and a limiting ring is provided on the side of the second gear away from the first gear. The limiting disc is integrally formed with the gear shaft, and the limiting ring is fixed to a flat key by a screw. The limiting disc and the limiting ring restrict the axial displacement of the first gear and the second gear.

3. A double gear assembly according to claim 2, characterized in that: The first gear has a groove on the side away from the second gear, and the limiting disc is clamped in the groove.

4. A double gear assembly according to claim 2, characterized in that: The second keyway is provided with a limiting groove, and a wave spring washer is provided in the limiting groove. The end of the first screw is embedded in the limiting groove and abuts against the wave spring washer. The wave spring washer prevents the first screw from loosening.

5. A double gear assembly according to claim 2, characterized in that: The end of the gear shaft is provided with a detachable connecting shaft.

6. A double gear assembly according to claim 5, characterized in that: The end of the gear shaft is provided with an integrally formed limiting part, and the inside of the connecting shaft is provided with a slot. The limiting part is embedded in the slot and fixed by two screws.

7. A double gear assembly according to claim 6, characterized in that: The limiting ring and the flat key are respectively provided with threaded holes at the corresponding positions, and the limiting part and the connecting shaft are respectively used to install screw one and screw two.

8. A double gear assembly according to claim 7, wherein: The limiting ring and the threaded hole end on the connecting shaft are both provided with countersunk holes.

9. A double gear assembly as claimed in claim 1, wherein: The helix angle of the first gear is 20-22°.

10. A double gear assembly as claimed in claim 1, wherein: The helix angle of the second gear is 18-20°.

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