阅读说明：本技术 圆柱齿轮差速器 (Cylindrical gear differential mechanism ) 是由 T·霍夫曼 于 2019-10-15 设计创作，主要内容包括：本发明涉及尤其用于机动车的圆柱齿轮差速器(1),其具有设置用于绕差速器轴(X)旋转的行星齿轮架(2)、相对于差速器轴(X)同轴布置的第一输出圆柱齿轮(3)、也相对于差速器轴(X)同轴布置的第二输出圆柱齿轮(4)、至少一对(5)可转动地安置在行星齿轮架(2)中的相互啮合的行星齿轮(6,7),其中该行星齿轮(6,7)分别与一个输出圆柱齿轮(3,4)啮合。输出圆柱齿轮(3,4)和/或行星齿轮(6,7)中的至少一个如此具有锥形齿,当行星齿轮(6,7)彼此相对转动时,使所述输出圆柱齿轮(3,4)和/或行星齿轮(6,7)中的至少一个运动到造成闭锁效果的位置中。本发明还涉及用于制造这种圆柱齿轮差速器(1)的相应方法。(The invention relates to a spur gear differential (1), in particular for a motor vehicle, having a planet carrier (2) which is provided for rotation about a differential axis (X), a first output spur gear (3) which is arranged coaxially with respect to the differential axis (X), a second output spur gear (4) which is also arranged coaxially with respect to the differential axis (X), at least one pair (5) of intermeshing planet gears (6,7) which are rotatably arranged in the planet carrier (2), wherein the planet gears (6,7) each mesh with one output spur gear (3, 4). At least one of the output cylindrical gears (3,4) and/or the planet gears (6,7) has a conical toothing in such a way that, when the planet gears (6,7) rotate relative to one another, the at least one of the output cylindrical gears (3,4) and/or the planet gears (6,7) is moved into a position which causes a blocking effect. The invention also relates to a corresponding method for producing such a spur gear differential (1).)

1. A spur gear differential (1), the spur gear differential (1) having:

-a planet carrier (2) arranged for rotation about a differential axis (X),

-a first output cylindrical gear (3), said first output cylindrical gear (3) being coaxially arranged with respect to said differential shaft (X),

-a second output cylindrical gear (4), said second output cylindrical gear (4) also being coaxially arranged with respect to said differential shaft (X), and

-at least one pair (5) of intermeshing planet gears (6,7) rotatably arranged in the planet carrier (2), wherein the planet gears (6,7) each mesh with one output cylindrical gear (3,4),

wherein at least one of the output cylindrical gear (3,4) and/or the planetary gear (6,7) has a conical toothing such that when the planetary gears (6,7) are rotated relative to each other, the at least one of the output cylindrical gear (3,4) and/or the planetary gear (6,7) is moved into a position causing a blocking effect.

2. The cylindrical gear differential (1) according to claim 1, wherein the planet gears (6,7) of the at least one pair (5) of planet gears (6,7) have conical teeth, such that when the planet gears (6,7) rotate relative to each other, the planet gears (6,7) move towards the planet carrier (2) so as to enter a position in which the planet gears (6,7) press against the planet carrier (2) and thus cause a blocking effect.

3. The cylindrical gear differential (1) according to claim 2, wherein the planet gears of the at least one pair (5) of planet gears (6,7) have conical teeth, such that when the planet gears (6,7) rotate relative to each other, the planet gears (6,7) move in opposite directions to each other in order to enter a position in which the planet gears (6,7) are pressed against the planet gear carrier (2) and thus cause a blocking effect.

4. The spur gear differential (1) according to any one of the preceding claims, wherein the output spur gears (3,4) have conical teeth, such that when the planet gears (6,7) rotate relative to each other, the output spur gears (3,4) move relative to each other into a position in which the output spur gears (3,4) are pressed against each other and thus cause a locking effect.

5. The cylindrical gear differential (1) according to any one of claims 1 to 3, wherein the output cylindrical gears (3,4) have bevel gears such that when the planet gears (6,7) rotate relative to each other, the output cylindrical gears (3,4) move towards the planet carrier (2) into a position in which the output cylindrical gears (3,4) press against the planet carrier (2) and thus cause a locking effect.

6. The spur gear differential (1) according to any one of the preceding claims, wherein the planet carrier (2) has a respective defined friction area (2c) for each planet gear (6,7), against which the respective planet gear (6,7) can be pressed.

7. The spur gear differential (1) according to claim 6, wherein the respective friction area (2c) has a structure, in particular a friction plate (2d), for increasing the friction between the friction area (2c) and the planet gears (6,7) pressed against the friction area (2c), wherein the structure (2c) preferably protrudes (in the axial direction) from the planet carrier (2).

8. Cylindrical gear differential (1) according to claim 6 or 7, wherein the respective friction zone (2c) has a recess in the planet carrier (2), said structure (2c) preferably being accommodated in said recess.

9. The spur gear differential (1) according to any one of the preceding claims, wherein the respective planet gear (6,7) has a (radial and/or axial) projection (6b,7b) for pressing against the planet carrier (2), preferably against the respective friction zone (2 c).

10. The spur gear differential (1) according to any one of the preceding claims, wherein the first output spur gear (3) and/or the second output spur gear (4) each have a (further) friction area against which the respective further output spur gear (3,4) can be pressed.

11. The spur gear differential (1) according to claim 10, wherein the respective (further) friction area has a structure, in particular a friction plate, for increasing the friction between the friction area and the output spur gear wheels (3,4) respectively pressed against the friction area.

12. Spur gear differential (1) according to claim 10 or 11, wherein the respective (further) friction area has a recess in the respective output spur gear (3,4), in which recess the structure is preferably accommodated.

13. The spur gear differential (1) according to any one of the preceding claims, wherein the tip circle diameter of the respective conical tooth structure (3c,4c,6c,7c) decreases from the first end side to the second end side of the respective conical tooth structure (3c,4c,6c,7c), and wherein the root circle diameter of the respective conical tooth structure (3c,4c,6c,7c) remains constant or increases or decreases from the first end side to the second end side of the respective conical tooth structure (3c,4c,6c,7 c).

14. A spur gear differential (1) according to any of the preceding claims, wherein the respective conical tooth structure (3c,4c,6c,7c) has a pitch angle in the range of 3 ° to 45 °, preferably 5 ° to 35 °, particularly preferably 10 ° to 30 °, for example 20 ° to 25 °.

15. The spur gear differential (1) according to any one of the preceding claims, wherein the respective conical tooth structure (3c,4c,6c,7c) is constituted at least by a demoulding bevel for manufacturing the respective at least one of the output spur gear (3,4) and/or the planet gear (6, 7).

16. The spur gear differential (1) according to one of the preceding claims, wherein the planet gears (6,7) and/or the output spur gear (3,4) are produced in a forming method, in particular a press-forming method.

17. The spur gear differential (1) according to claim 16, wherein the forming method is forging, in particular swaging.

18. Cylindrical gear differential (1) according to one of the preceding claims, the cylindrical gear differential (1) having at least two (5), three (5), four (5), five (5) or six (5) pairs of intermeshing planet gears (6,7) rotatably arranged in the planet carrier (2).

19. Method of manufacturing a spur gear differential (1) according to any of the preceding claims, having the steps of:

-providing a planet carrier (2) arranged for rotation about a differential axis (X),

-providing a first output cylindrical gear (3) coaxial with the differential shaft (X),

-providing a second output cylindrical gear (4) coaxial with the differential shaft (X),

-providing at least one pair (5) of mutually engaging planet gears (6,7) rotatably arranged in the planet carrier (2) such that the planet gears (6,7) each engage with one output cylindrical gear (3,4),

wherein at least one of the output cylindrical gear (3,4) and/or the planetary gear (6,7) has a conical toothing, such that when the planetary gears (6,7) rotate relative to each other, the at least one of the output cylindrical gear (3,4) and/or the planetary gear (6,7) moves into a position causing a blocking effect.