Three-piece clutch disc mechanism and a spindle system with the three-piece clutch disc mechanism

Abstract

This invention provides a three-plate clutch gear mechanism, comprising: a rotating shaft; a bearing housing sleeved on the rotating shaft, the rotating shaft being rotatable relative to the bearing housing; an inner gear plate coupled to the rotating shaft, the inner gear plate having a first tooth surface; an outer gear plate sleeved outside the inner gear plate, the outer gear plate having a second tooth surface; and a brake disc sleeved on the portion of the bearing housing, the brake disc having a brake tooth surface, a first pushing end face, and a second pushing end face, the brake tooth surface and the first pushing end face facing opposite directions, the brake tooth surface and the second pushing end face facing the same direction, the first pushing end face being pushed by a first fluid to approach the inner gear plate and the outer gear plate, and the second pushing end face being pushed by a second fluid to move away from the inner gear plate and the outer gear plate.

Claims

1. A three-plate clutch gear mechanism, comprising: A rotating axis; A bearing housing is fitted onto the rotating shaft, which can rotate relative to the bearing housing; An internal gear disk, coupled to the rotating shaft, has a first tooth surface; an external gear disk, sleeved on the outside of the internal gear disk, has a second tooth surface; and a brake disk, sleeved on a portion of the bearing housing, the brake disk having a brake tooth surface, a first pushing end face and a second pushing end face, the brake tooth surface and the first pushing end face facing opposite directions, the brake tooth surface and the second pushing end face facing the same direction, the first pushing end face being pushed by a first fluid to approach the internal gear disk and the external gear disk, and the second pushing end face being pushed by a second fluid to move away from the internal gear disk and the external gear disk.

2. The three-plate clutch gear mechanism as described in claim 1, wherein, It also has a support ring that is coupled to the outer gear disc, the support ring being arranged side by side with the outer gear disc and located between the outer gear disc and the brake disc.

3. The three-plate clutch gear mechanism as described in claim 1, wherein, The bearing housing has a flange portion and a sleeve portion for connection. The outer diameter of the flange portion is larger than the outer diameter of the sleeve portion. The sleeve portion is fitted onto the rotating shaft. The bearing housing has a first fluid channel for conveying the first fluid to the space between the first push end face and a rib end face of the flange portion.

4. The three-plate clutch gear mechanism as described in claim 1, wherein, The rotating shaft has a shaft portion and a disc portion that are connected. The bearing housing has a flange portion and a sleeve portion that are connected. The outer diameter of the flange portion is larger than the outer diameter of the sleeve portion. The sleeve portion is fitted onto the shaft portion of the rotating shaft. The internal gear disc is connected to the disc portion.

5. The three-plate clutch gear mechanism as described in claim 4, wherein, The flange portion has an annular rib on one side connected to the sleeve portion. The annular rib has a rib end face. The bearing housing has a first fluid channel for conveying the first fluid. The first fluid channel has a first inlet and a first outlet. The first outlet is located on the rib end face, and the first inlet is located on the flange portion. The brake disc is sleeved on the annular rib of the bearing housing.

6. The three-plate clutch gear mechanism as described in claim 4, wherein, The flange portion has a ring rib on one side of the sleeve portion. The ring rib has a rib end face and an inner ring. The inner ring is connected to the disc portion of the rotating shaft. The inner ring has an inner end face. The inner end face and the rib end face face the first push end face.

7. The three-plate clutch gear mechanism as described in claim 6, wherein, The annular rib surrounds and defines a receiving groove, and the inner ring is disposed within the receiving groove.

8. The three-plate clutch gear mechanism as described in claim 1, wherein, It also has an inner ring attached to the rotating shaft. The inner ring has a first ring segment and a second ring segment integrally connected along the shaft. The outer diameter of the second ring segment is larger than the outer diameter of the first ring segment. The other end of the first ring segment connected to the second ring segment abuts against the rotating shaft. The second ring segment has an inner end face facing the first push end face.

9. The three-plate clutch gear mechanism as described in claim 1, wherein, The second tooth surface is flush with the first tooth surface.

10. The three-plate clutch gear mechanism as described in claim 1, wherein, The brake disc has a coarse diameter portion and a fine diameter portion that are connected. The fine diameter portion has a brake tooth surface at the other end that is connected to the coarse diameter portion. The first push end face is located on the fine diameter portion and is located on the side opposite to the brake tooth surface. The second push end face is located on the side where the coarse diameter portion is connected to the fine diameter portion.

11. The three-plate clutch gear mechanism as described in claim 6, wherein, A first fluid space is formed between the first pushing end face, the inner end face, and the rib end face. The bearing housing has a first fluid channel with a first outlet facing the first fluid space. The first fluid channel is used to transport the first fluid to the first fluid space to push the first pushing end face. A second fluid space is formed between the second pushing end face and the outer gear plate. A second fluid channel is also provided, which communicates with the second fluid space. The second fluid channel is used to transport the second fluid to the second fluid space to push the second pushing end face.

12. A spindle system comprising a three-plate clutch gear mechanism as described in claim 1, wherein, It further includes: a housing; a drive mechanism installed within the housing, the drive mechanism having a drive shaft; a first gear coupled to the drive shaft, the drive mechanism driving the first gear to rotate; a second gear coupled to a relay shaft pivotally mounted on the housing, the second gear meshing with the first gear; a body base rotatably disposed within the housing, a main shaft coupled to the body base; and a third gear coupled to the rotating shaft, the third gear meshing with the second gear.

13. The spindle system of the three-plate clutch gear mechanism as described in claim 12, wherein, The bearing housing has a flange portion and a sleeve portion for connection. The flange portion is locked to the housing, the outer gear disc is fixed to the housing, and a second fluid channel is located in the housing.

14. The spindle system of the three-plate clutch gear mechanism as described in claim 12, wherein, The drive mechanism includes a servo motor and a speed reducer, the speed reducer having the drive shaft.

15. The spindle system of the three-plate clutch gear mechanism as described in claim 12, wherein, The second gear is larger than the first gear, and the third gear is larger than the second gear.

16. The spindle system of the three-plate clutch gear mechanism as described in claim 12, wherein, The rotating shaft has a shaft portion and a disc portion connected together. The disc portion is locked to the body seat. The third gear is sleeved and engaged with the shaft portion. The third gear is located at the other end of the shaft portion that connects to the disc portion.

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