CN210661218U

CN210661218U - Gear box with vertical output

Info

Publication number: CN210661218U
Application number: CN201921370628.5U
Authority: CN
Inventors: 赵恩乐; 吴波; 邓坤
Original assignee: Nanjing High Speed and Accurate Gear Group Co Ltd
Current assignee: Nanjing High Speed and Accurate Gear Group Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-02
Anticipated expiration: 2029-08-22

Abstract

The utility model belongs to the technical field of gear drive, a gear box of perpendicular output is disclosed. The vertical output gearbox comprises an input bevel gear shaft and a bevel gear meshed with the input bevel gear shaft; the bevel gear is fixedly connected with a parallel stage shaft, and the input bevel gear shaft is vertical to the parallel stage shaft; the parallel-stage shaft is provided with external teeth, the external teeth of the parallel-stage shaft are meshed with a transmission gear, and the diameter of the transmission gear is larger than that of the parallel-stage shaft; the gear is fixedly connected with a wheel shaft of a first-stage sun gear, the wheel shaft of the first-stage sun gear is parallel to the parallel stage shaft, and a third-stage planetary speed reduction is connected behind the wheel shaft of the first-stage sun gear. The utility model is provided with the input bevel gear shaft meshed with the bevel gear, so that the parallel shaft is vertical to the input bevel gear shaft, and the axial length of the gear box with vertical output is reduced; the parallel-stage shaft is meshed with the transmission gear with a larger diameter, and the torque is transmitted out through the transmission gear to realize speed reduction.

Description

Gear box with vertical output

Technical Field

The utility model relates to a gear drive technical field especially relates to a gear box of perpendicular output.

Background

The gear box is an important part widely applied to mechanical transmission, a gear set is arranged in the gear box, and transmission functions such as speed reduction output and the like are achieved through the gear set.

The gear box adopts a two-stage or three-stage planetary structure, the traditional gear box is generally vertically arranged, the input and the output are concentric, the axial size of the gear box is large due to the design, the length is long, the whole gear box is large in size, and the gear box is limited by the installation space during installation and is not easy to install. In addition, the traditional gearbox has a small speed ratio and sometimes cannot meet the requirement of speed reduction.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gear box of perpendicular output to gear box axial dimension is great among the solution prior art, requires higher problem to installation space.

To achieve the purpose, the utility model adopts the following technical proposal:

a gear box with vertical output comprises a first box body, an input bevel gear shaft and a bevel gear, wherein the input bevel gear shaft is rotatably connected to the first box body;

the bevel gear is fixedly connected with a parallel stage shaft, and the input bevel gear shaft is vertical to the parallel stage shaft;

the parallel-stage shaft is provided with external teeth, the external teeth of the parallel-stage shaft are meshed with a transmission gear, and the diameter of the transmission gear is larger than that of the parallel-stage shaft;

the transmission gear is fixedly connected with a first-stage sun gear wheel shaft, the first-stage sun gear wheel shaft is parallel to the parallel stage shaft, and the first-stage sun gear wheel shaft and the parallel stage shaft are both rotatably connected in the first box body;

the primary sun gear is meshed with the primary planet gear, the primary planet gear is meshed with the primary inner gear ring, and the primary planet gear is arranged on the primary planet carrier to form primary planet deceleration;

one end of the primary planet carrier is fixedly connected with a secondary sun gear, so that the primary planet carrier drives the secondary sun gear to rotate; the secondary sun gear is meshed with the secondary planet gear, the secondary planet gear is meshed with the secondary inner gear ring, and the secondary planet gear is arranged on the secondary planet carrier to form secondary planet deceleration;

a second box body is arranged between the primary inner gear ring and the secondary inner gear ring;

one end of the secondary planet carrier is fixedly connected with a tertiary sun gear, so that the secondary planet carrier drives the tertiary sun gear to rotate; the third-stage sun gear is meshed with the third-stage planet gear, the third-stage planet gear is meshed with the third-stage inner gear ring, and the third-stage planet gear is arranged on the third-stage planet carrier to form third-stage planet speed reduction;

a third box body is arranged between the second-stage inner gear ring and the third-stage inner gear ring;

and the third-stage planet carrier is connected with the output shaft to output torque.

Preferably, a fourth box body is arranged at one end, close to the output shaft, of the three-stage inner gear ring; and two ends of the three-stage planet carrier are respectively supported on the third box body and the fourth box body.

Preferably, a fifth box is sleeved on the output shaft.

Preferably, an output gear is connected to an end of the output shaft, and the output of the vertically output gearbox torque is realized by connecting the output gear with other equipment.

Preferably, the output gear is a spline gear.

Preferably, a first flange for fixing the parallel stage shaft and the first stage sun gear shaft is arranged in the first box body.

Preferably, the third-stage planet carrier is connected with the output shaft through a spline.

Preferably, the fourth box outer ring is provided with a second flange.

Preferably, the input bevel gear shaft is connected with the motor, and the input bevel gear shaft and the motor are connected with the brake through a coupler.

Preferably, the outer side of the second box body is fixedly connected with a motor base, and the motor, the coupler and the brake are connected and arranged on the motor base.

The utility model has the advantages that:

the utility model is provided with the input bevel gear shaft meshed with the bevel gear, so that the input bevel gear shaft is vertical to the parallel shaft, thereby realizing that the axis of the input shaft is vertical to the axis of the output shaft, and the input and the output are coaxial unlike the prior art, thus reducing the axial length of the gear box; the parallel-stage shaft is meshed with the transmission gear with a larger diameter, then the torque is transmitted out through the transmission gear to realize speed reduction, and a three-stage planetary speed reduction structure is connected behind the speed reduction, so that the speed reduction is realized through the meshing of the parallel-stage shaft and the transmission gear with the larger diameter, and then the design of three-stage planetary speed reduction is combined, the larger speed ratio of input and output can be realized, and the higher speed reduction requirement is met;

in addition, the motor base used for installing the motor, the coupler and the brake and the gear box are designed in an integrated mode, additional installation and debugging are not needed, debugging of the system on site is reduced, and installation cost is reduced; the whole gearbox is in modular design, the design and production cost is reduced, and maintainability is high.

Drawings

FIG. 1 is a schematic diagram of a vertical output gearbox embodiment of the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the vertical output gearbox of the present invention.

In the figure:

1. a first case; 2. inputting a bevel gear shaft; 3. a bevel gear; 4. a parallel stage axis; 5. a transmission gear; 6. a primary sun gear shaft; 7. a first bearing; 8. a second bearing; 9. a first flange; 10. a primary sun gear;

11. a primary planet wheel; 12. a primary annular gear; 13. a primary planet carrier; 14. a secondary sun gear; 15. a secondary planet wheel; 16. a secondary annular gear; 17. a secondary planet carrier; 18. a third-stage sun gear; 19. a third planet wheel;

20. a tertiary ring gear; 21. a third-stage planet carrier; 22. an output shaft; 23. a second case; 24. a third box body; 25. a fourth box body; 26. a fifth box body; 27. a sixth box body; 28. a third bearing; 29. an output gear; 30. a second flange;

31. a motor; 32. a connecting member; 33. a motor base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a gear box of perpendicular output, the utility model discloses a gear box is gyration gearbox, and the gear box includes first box 1, and input bevel gear axle 2 rotates to be connected on first box 1, and input bevel gear axle 2 is provided with the one end of gear and penetrates in first box 1, and the one end that does not set up the gear is located first box 1 outsidely for connect drive arrangement, realize the input of torque, with the torque input gearbox.

The gear on the input bevel gear shaft 2 is meshed with the bevel gear 3, the bevel gear 3 is sleeved on the parallel stage shaft 4, the bevel gear 3 is fixedly connected with the parallel stage shaft 4, and the parallel stage shaft 4 can be driven by the bevel gear 3 to synchronously rotate with the bevel gear 3. Through the cooperation of input bevel gear axle 2 and bevel gear 3, can make input bevel gear axle 2 perpendicular with parallel level axle 4, go out the torque transmission perpendicularly, just so can shorten the axial length of gear box, save installation space. Through the cooperation of input bevel gear axle 2 and bevel gear 3, form one-level spiral umbrella and turn to, convert the torque to in the vertical direction.

The parallel-stage shaft 4 is provided with external teeth, the parallel-stage shaft 4 is meshed with the transmission gear 5 through the external teeth, and the diameter of the transmission gear 5 is larger than that of the parallel-stage shaft 4, so that speed reduction can be realized. The transmission gear 5 is connected with the primary sun gear shaft 6, so that the decelerated torque can be transmitted to the primary sun gear shaft 6. The primary parallel axis deceleration is formed by the parallel stage shafts 4 and the primary sun gear shaft 6.

The first-stage sun wheel shaft 6 and the parallel-stage shaft 4 are both rotationally connected in the first box body 1. As shown in fig. 1, the top ends of the first-stage sun wheel shaft 6 and the parallel-stage shaft 4 are connected in the first case 1 through a first bearing 7, the middle part of the first-stage sun wheel shaft 6 and the bottom end of the parallel-stage shaft 4 are connected in the first case 1 through a second bearing 8, a first flange 9 is arranged between the second bearing 8 and the first case 1, and the first flange 9 abuts against the inner wall of the first case 1 to support the first-stage sun wheel shaft 6 and the parallel-stage shaft 4.

The bottom end of the primary sun wheel shaft 6 is provided with a primary sun wheel 10, the primary sun wheel 10 is meshed with a primary planet wheel 11, the primary planet wheel 11 is meshed with a primary inner gear ring 12, and the primary planet wheel 11 is arranged on a primary planet carrier 13 through a pin shaft to form primary planet speed reduction. It goes without saying that a bearing is provided between the pin on which the primary planet gears 11 are mounted and the primary planet gears 11, so that the primary planet gears 11 can rotate about the primary sun gear 10. The primary planet gear 11 is meshed with the primary sun gear 10 and is driven by the primary sun gear 10 to rotate, so that the primary planet carrier 13 is driven to rotate.

The primary planet carrier 13 is fixedly connected with the secondary sun gear 14, so that the primary planet carrier 13 transmits the torque to the secondary sun gear 14, as shown in fig. 1, the secondary sun gear 14 is fixed at the bottom end of the primary planet carrier 13, so that the secondary sun gear 14 and the primary planet carrier 13 rotate synchronously, and then the secondary planet is decelerated through the meshing of the secondary planet gear 15 and the secondary sun gear 14. It goes without saying that the outer ring of the secondary planet gear 15 is engaged with the inner teeth of the secondary annular gear 16, the secondary planet gear 15 is mounted on the secondary planet carrier 17 through a pin and a bearing, and the secondary sun gear 14, the secondary planet gear 15, the secondary annular gear 16 and the secondary planet carrier 17 form a secondary planet deceleration structure.

As shown in fig. 1, the bottom end of the second-stage planet carrier 17 is fixedly connected with the third-stage sun gear 18, and the second-stage planet carrier 17 drives the third-stage sun gear 18 to rotate, so that the rotation of the second-stage planet carrier 17 is transmitted to the next-stage planetary reduction structure. The third-stage sun gear 18 is meshed with a third-stage planet gear 19, the third-stage planet gear 19 is meshed with a third-stage inner gear ring 20, and the third-stage planet gear 19 is mounted on a third-stage planet carrier 21 to form third-stage planet speed reduction. The third-stage planet wheel 19 is rotationally connected to a third-stage planet carrier 21 through a pin shaft and a bearing.

The third-stage planet carrier 21 is fixedly connected with the output shaft 22, the third-stage planet carrier 21 transmits the torque to the output shaft 22, and the output shaft 22 is connected with other equipment (such as a working machine) to output the torque so as to realize the function of a gearbox.

As shown in fig. 1, a second box 23 is arranged between the primary ring gear 12 and the secondary ring gear 16, a third box 24 is arranged between the secondary ring gear 16 and the tertiary ring gear 20, and a fourth box 25 is arranged at one end (bottom end of the tertiary ring gear 20) of the tertiary ring gear 20 close to the output shaft 22.

Two ends of the third-stage planet carrier 21 are respectively supported on the third box body 24 and the fourth box body 25 through bearings, so that the planetary reduction structure is more stable.

The output shaft 22 is sleeved with a fifth box 26 and a sixth box 27, and the fifth box 26 and the sixth box 27 are sequentially sleeved on the output shaft 22 from top to bottom to protect the output shaft 22. The inner wall of the fifth casing 26 is in contact with the third-stage carrier 21, so that a space is provided between the fifth casing 26 and the output shaft 22, and the output shaft 22 is not in direct contact with the space, and can freely rotate in the fifth casing 26 without being restricted by the fifth casing 26. Since the third bearing 28 is provided between the sixth case 27 and the output shaft 22, the output shaft 22 can also rotate in the sixth case 27.

The third-stage planetary carrier 21 is connected with the output shaft 22 through a spline, so that the output shaft 22 is fixed on the third-stage planetary carrier 21 and can rotate synchronously with the third-stage planetary carrier 21.

As shown in fig. 1, the lower end of the output shaft 22 is connected to an output gear 29, and is connected to other equipment (such as a working machine) through the output gear 29 to realize the torque output of the gearbox. In the preferred embodiment, the output gear 29 is a splined gear. The spline grooves are formed in the wheel shafts of the spline wheels, so that the spline wheels can be conveniently and fixedly connected with the output shaft 22. Torque is transmitted to the working machine through the external teeth of the spline wheel.

The outer ring of the fourth box 25 is provided with a second flange 30, the gear box is fixed on the second flange 30 through bolts, and the second flange 30 is fixed with other equipment such as a working machine to complete the installation of the gear box.

Fig. 2 is a schematic structural view of another embodiment of the vertical output gearbox of the present invention, as shown in fig. 2, the input bevel gear shaft 2 is connected to the motor 31, so as to drive the input bevel gear shaft 2 to rotate through the motor 31, and transmit the torque into the gearbox. The input bevel gear shaft 2 is connected with the motor 31 through a connecting piece 32, and the connecting piece 32 comprises a coupler and a brake. Motor 31, shaft coupling and stopper pass through motor cabinet 33 and install on the gear box, and motor cabinet 33 and the outside fixed connection of second box 23 make motor cabinet 33 and gear box become the integral type structure, and motor cabinet 33 and the gear box integral type design of installation motor 31, shaft coupling and stopper do not just need installation and debugging in addition, reduce the on-the-spot debugging to the system, have reduced installation cost. In addition, the whole gearbox is modularized due to the integrated design, the design and production cost is reduced, and the maintainability is high.

The utility model discloses an one-level spiral shell umbrella, one-level parallel shaft, tertiary planet level transmission structure, the velocity ratio can reach more than 2800, has realized the high speed ratio demand, and simultaneously, input shaft axis and output axis mutually perpendicular have reduced the axial length of gear box, satisfy the installation space requirement.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vertical output gearbox is characterized by comprising a first box body (1), an input bevel gear shaft (2) rotationally connected to the first box body (1), and a bevel gear (3) meshed with the input bevel gear shaft (2);

the bevel gear (3) is fixedly connected with a parallel stage shaft (4), and the input bevel gear shaft (2) is vertical to the parallel stage shaft (4);

the parallel-stage shaft (4) is provided with external teeth, the external teeth of the parallel-stage shaft (4) are meshed with a transmission gear (5), and the diameter of the transmission gear (5) is larger than that of the parallel-stage shaft (4);

the transmission gear (5) is fixedly connected with a primary sun gear shaft (6), the primary sun gear shaft (6) is parallel to the parallel stage shaft (4), and the primary sun gear shaft (6) and the parallel stage shaft (4) are both rotationally connected in the first box body (1);

the primary sun gear (10) is meshed with the primary planet gear (11), the primary planet gear (11) is meshed with the primary inner gear ring (12), and the primary planet gear (11) is arranged on a primary planet carrier (13) to form primary planet deceleration;

one end of the primary planet carrier (13) is fixedly connected with a secondary sun gear (14), so that the primary planet carrier (13) drives the secondary sun gear (14) to rotate; the secondary sun gear (14) is meshed with a secondary planet gear (15), the secondary planet gear (15) is meshed with a secondary inner gear ring (16), and the secondary planet gear (15) is arranged on a secondary planet carrier (17) to form secondary planet deceleration;

a second box body (23) is arranged between the primary inner gear ring (12) and the secondary inner gear ring (16);

one end of the secondary planet carrier (17) is fixedly connected with a tertiary sun gear (18) so that the secondary planet carrier (17) drives the tertiary sun gear (18) to rotate; the three-stage sun gear (18) is meshed with a three-stage planet gear (19), the three-stage planet gear (19) is meshed with a three-stage inner gear ring (20), and the three-stage planet gear (19) is arranged on a three-stage planet carrier (21) to form third-stage planet speed reduction;

a third box body (24) is arranged between the secondary inner gear ring (16) and the tertiary inner gear ring (20);

the third-stage planet carrier (21) is connected with an output shaft (22) to output torque.

2. A vertical output gearbox according to claim 1, characterised in that a fourth box (25) is provided on the tertiary annulus gear (20) at the end adjacent to the output shaft (22); two ends of the third-stage planet carrier (21) are respectively supported on the third box body (24) and the fourth box body (25).

3. A vertical output gearbox according to claim 1, characterised in that a fifth casing (26) is fitted over the output shaft (22).

4. A vertical output gearbox according to claim 1, characterised in that the end of the output shaft (22) is connected to an output gear (29).

5. A vertical output gearbox according to claim 4, characterised in that the output gear (29) is a splined wheel.

6. A vertical output gearbox according to claim 1, characterized in that a first flange (9) is provided inside the first casing (1) for fixing the parallel stage shafts (4) and the stage one sun wheel shaft (6).

7. A vertical output gearbox according to claim 1, characterised in that the tertiary planet carrier (21) is splined to the output shaft (22).

8. A vertical output gearbox according to claim 2, characterised in that the fourth casing (25) is provided with a second flange (30) on the outer ring.

9. A vertical output gearbox according to claim 1, characterized in that the input bevel gear shaft (2) is connected to a motor (31), and the input bevel gear shaft (2) and the motor (31) are connected to a brake through a coupling.

10. A vertical output gearbox according to claim 9, characterized in that the outside of said second casing (23) is fixedly connected with a motor base (33), and said motor (31), said coupling and said brake connection are all arranged on said motor base (33).