T-shaped double-input industrial planetary gear speed reducer

Abstract

The utility model discloses a T-shaped double-input industrial planetary gear speed reducer which comprises a box body, an input shaft and an output shaft, the input shaft and the output shaft are arranged in the box body in a penetrating mode, the output shaft is perpendicular to the input shaft in a T shape, one shaft end of the output shaft forms an output end on one side of the box body, and the other shaft end of the output shaft forms an output end on the other side of the box body. And at least one shaft end of the input shaft forms an input end on the box body. The input shaft and output shaft T-shaped structural design is adopted, double-side double-side input or double-side intermittent single-side input is formed through the double input ends of the input shaft, input torque can be effectively shared when large-torque input is borne, the structural strength is guaranteed, and the service life of the input ends and input equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducers and relates to a T-type dual-input industrial planetary gear reducer. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine, outputting high torque. For heavy-duty large speed reducers with high output torque requirements, the gear ratio limits their input torque. Existing traditional single-shaft input structures of speed reducers have limited load-bearing capacity at the input end under high input torque conditions, which can easily lead to shaft or gear breakage at the input end or input equipment. This places excessively high demands on the structural strength of the input end, resulting in a very limited service life. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a T-type dual-input industrial planetary gear reducer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A T-shaped dual-input industrial planetary gear reducer includes a housing and an input shaft and an output shaft passing through the housing. The output shaft is T-shaped and perpendicular to the input shaft. One end of the output shaft forms an output end on one side of the housing, and at least one end of the input shaft forms an input end on the housing.

[0006] Furthermore, the two ends of the input shaft form two input ends on both sides of the housing.

[0007] Furthermore, an input bevel gear is connected to the input shaft, and an output bevel gear is connected to the output shaft, with the input bevel gear and the output bevel gear meshing.

[0008] Furthermore, it also includes an output planetary structure, which includes an internal gear ring, an output planetary carrier, planetary gears, and a sun gear shaft. The internal gear ring is fixedly connected to the housing, the planetary gears are connected to the output planetary carrier, one end of the output shaft is splinedly connected to the output planetary carrier, the outer side of the planetary gears meshes with the internal gear ring, the inner side of the planetary gears meshes with the sun gear shaft, and one end of the sun gear shaft is splinedly connected to the output bevel gear.

[0009] Furthermore, the output end is provided with an output flange, which forms an integral structure with the shaft end of the output shaft.

[0010] Furthermore, a tapered roller bearing is fitted onto the output shaft, and the outer circumference of the tapered roller bearing is connected to the inner wall of the housing.

[0011] Furthermore, it also includes a round nut, which is threadedly connected to the output shaft and abuts against the tapered roller bearing axially.

[0012] In summary, the advantages of this utility model are as follows:

[0013] This utility model adopts a T-shaped structure design for the input shaft and output shaft. The dual input ends of the input shaft form a double-sided double-sided input or a double-sided intermittent single-sided input. When bearing a large torque input, it can effectively distribute the input torque, ensure structural strength, and extend the service life of the input end and input device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model.

[0016] Figure 3 for Figure 2 A magnified structural diagram of A in the diagram.

[0017] The diagram shows the following components: 11. Input housing; 12. Connecting housing; 13. Output housing; 2. Input shaft; 21. First tapered roller bearing; 3. Output shaft; 31. Output flange; 32. Third tapered roller bearing; 33. Round nut; 41. Input bevel gear; 42. Output bevel gear; 43. Second tapered roller bearing; 51. Internal gear ring; 52. Output planetary carrier; 53. Planetary gear; 54. Sun gear shaft. Detailed Implementation

[0018] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0021] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0022] This embodiment provides a T-type dual-input industrial planetary gear reducer, including a housing, an input shaft 2 and an output shaft 3. The input shaft 2 and the output shaft 3 are connected by a transmission wheel set to achieve a T-type transmission connection, so that the input shaft 2 can realize torque input from either end or both ends simultaneously in the axial direction.

[0023] Reference Figure 1 and Figure 2 As shown, the housing includes an input housing 11, a connecting housing 12, and an output housing 13 connected in sequence. The input shaft 2 is disposed inside the input housing 11, forming input ends at both ends of the input housing 11. The output shaft 3 is disposed inside the output housing 13, forming an output end at one end of the output housing 13.

[0024] Specifically, the input end housing 11 has openings at both ends, and the input shaft 2 passes through the input end housing 11. The two axial ends of the input shaft 2 extend outward from the openings at both ends, serving as the input ends for external torque input. The input end housing 11 is provided with two first tapered roller bearings 21, which are respectively sleeved on the input shaft 2 near the two input ends. The outer periphery of the first tapered roller bearings 21 fits with the inner wall of the input end housing 11, thereby providing positioning support for the input shaft 2 and bearing a certain axial force to prevent movement.

[0025] Reference Figure 3The connecting housing 12 is fixedly connected to one side of the input housing 11. An output bevel gear 42 is provided inside the connecting housing 12. The output bevel gear 42 is connected to the inner wall of the connecting housing 12 in the circumferential direction through a second tapered roller bearing 43, so as to realize the positioning support and rotation of the output bevel gear 42. An input bevel gear 41 is sleeved on the input shaft 2. The input bevel gear 41 and the input shaft 2 can form a spline connection for synchronous rotation. Both the input bevel gear 41 and the output bevel gear 42 have bevel tooth surfaces on their end faces to form mutual meshing. When an external torque is input to make the input shaft 2 rotate, the output bevel gear 42 is driven to rotate synchronously through the input bevel gear 41.

[0026] The output end housing 13 is fixedly connected to one side of the connecting housing 12. The output shaft 3 is set inside the output end housing 13. The circumferential direction of the output shaft 3 is connected to the inner wall of the output end housing 13 through the third tapered roller bearing 32, so as to realize the positioning support and rotation of the output shaft 3. One end of the output shaft 3 is connected to the output bevel gear 42 in the axial direction, so that the output bevel gear 42 drives the rotation of the output shaft 3, thereby forming a torque transmission from the input shaft 2 to the output shaft 3.

[0027] An output flange 31 is provided at the other axial end of the output shaft 3. The output flange 31 is used to connect with an external output device to output torque. The output flange 31 and the output shaft 3 form an integral structure, replacing the original output flange 31 output structure with a shaft hole key connection or spline connection. This allows the stress on the output flange 31 in this embodiment to be distributed to the entire output shaft 3, increasing the load-bearing torque and reducing transmission error.

[0028] The outer circumference of the output shaft 3 is also threaded with a round nut 33 and a locking washer. The round nut 33 abuts against one end of the third tapered roller bearing 32 in the axial direction, locking the third tapered roller bearing 32 in the axial direction to effectively prevent the axial movement of the output shaft 3, and the locking washer prevents the round nut 33 from loosening.

[0029] Furthermore, to enhance the load-bearing capacity and transmission stability between the input shaft 2 and the output shaft 3, this embodiment also includes an output planetary structure. The output planetary structure is disposed between the output end housing 13 and the connecting housing 12, and includes an internal gear ring 51, an output planetary carrier 52, planetary gears 53, and a sun gear shaft 54. The two ends of the internal gear ring 51 are fixedly connected to the connecting housing 12 and the output end housing 13, respectively. The number of planetary gears 53 is set to be multiple and rotated on the output planetary carrier 52 in a circular array. The internal gear ring 51 meshes with the outer periphery of the circular array of multiple planetary gears 53. One end of the output shaft 3 is fixedly connected to the output planetary carrier 52 along the axial direction of the output planetary carrier 52. One end of the sun gear shaft 54 ​​is fixedly connected to the output bevel gear 42 along the axial direction of the output bevel gear 42, and the other end meshes with the inner periphery of the circular array of multiple planetary gears 53. The rotation of the output bevel gear 42 is transmitted to the planetary gears 53 through the sun gear shaft 54, and then drives the rotation of the output shaft 3 through the output planetary carrier 52.

[0030] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. A T-type dual-input industrial planetary gear reducer, characterized in that, It includes a housing and an input shaft (2) and an output shaft (3) passing through the housing. The output shaft (3) is T-shaped and perpendicular to the input shaft (2). One end of the output shaft (3) forms an output end on one side of the housing, and at least one end of the input shaft (2) forms an input end on the housing.

2. The T-type dual-input industrial planetary gear reducer according to claim 1, characterized in that, The two ends of the input shaft (2) form two input ends on the two sides of the housing.

3. The T-type dual-input industrial planetary gear reducer according to claim 1, characterized in that, An input bevel gear (41) is connected to the input shaft (2), and an output bevel gear (42) is connected to the output shaft (3). The input bevel gear (41) and the output bevel gear (42) mesh.

4. A T-type dual-input industrial planetary gear reducer according to claim 3, characterized in that, It also includes an output planetary structure, which includes an internal gear ring (51), an output planet carrier (52), planet gears (53), and a sun gear shaft (54). The internal gear ring (51) is fixedly connected to the housing, the planet gears (53) are connected to the output planet carrier (52), one end of the output shaft (3) is splined to the output planet carrier (52), the outer side of the planet gears (53) meshes with the internal gear ring (51), the inner side of the planet gears (53) meshes with the sun gear shaft (54), and one end of the sun gear shaft (54) is splined to the output bevel gear (42).

5. A T-type dual-input industrial planetary gear reducer according to claim 1, characterized in that, The output end is provided with an output flange (31), and the output flange (31) and the shaft end of the output shaft (3) form an integral structure.

6. A T-type dual-input industrial planetary gear reducer according to claim 1, characterized in that, A tapered roller bearing is fitted on the output shaft (3), and the outer circumference of the tapered roller bearing is connected to the inner wall of the housing.

7. A T-type dual-input industrial planetary gear reducer according to claim 6, characterized in that, It also includes a round nut (33), which is threaded to the output shaft (3) and abuts against the tapered roller bearing along the axial direction.

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