Closed-loop power shunting and converging self-adaptive uniform-load transmission mechanism

Abstract

The utility model relates to the technical field of machining and assembly transmission, in particular to a closed-loop power shunting and converging self-adaptive uniform-load transmission mechanism, which overcomes the defects of machining and assembly transmission in the prior art and comprises a box body, an input gear shaft is arranged on one side of the box body, a first bearing is arranged on one side of the input gear shaft, and a second bearing is arranged on the other side of the input gear shaft. A second gear shaft and a third gear shaft are arranged in the box body, second bearings are arranged on one side of the second gear shaft and one side of the third gear shaft, a first gear is arranged on the surface of the second gear shaft, a second gear is arranged on the surface of the third gear shaft, and the first gear and the second gear are connected with the two sides of the surface of an input gear shaft in a meshed mode respectively. An output shaft is arranged on one side of the box body, a third bearing is arranged on the surface of the output shaft, and a third gear is arranged on the surface of the output shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing and assembly transmission, in particular to a closed-loop power splitting and merging adaptive load-sharing transmission mechanism. Background Art

[0002] In some transmission devices, if a traditional single-meshing series transmission structure is used, the transmission equipment will be large in size, heavy in weight, and high in equipment cost. If a single-helical-tooth splitter-merge transmission mechanism is used, in some cases, the superimposed axial force generated by the two splitter gears at the high speed stage is relatively large, and the shaft system must meet certain speed requirements, making it impossible to select high-speed bearings that meet the conditions. This splitter-merge adaptive load-sharing transmission mechanism, through reasonable structure and gear parameter configuration, can more easily select bearings that meet the requirements, and can significantly reduce the size and weight of the transmission device, improving the transmission efficiency and power density of the equipment.

[0003] Therefore, it is necessary to design a closed-loop power splitting and merging adaptive load-sharing transmission mechanism that is highly practical and can improve the transmission efficiency and power density of the equipment. Utility Model Content

[0004] The purpose of the present invention is to provide a closed-loop power splitting and merging adaptive load-sharing transmission mechanism to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a closed-loop power splitting and merging adaptive load-sharing transmission mechanism, comprising a box body, an input gear shaft is provided on one side of the box body, a bearing 1 is provided on one side of the input gear shaft, a gear shaft 2 and a gear shaft 3 are provided inside the box body, a bearing 2 is provided on one side of each of the gear shafts 2 and 3, a gear 1 is provided on the surface of the gear shaft 2, a gear 2 is provided on the surface of the gear shaft 3, the gear 1 and the gear 2 are respectively meshed and connected with the two sides of the surface of the input gear shaft, an output shaft is provided on one side of the box body, a bearing 3 is provided on the surface of the output shaft, a gear 3 is provided on the surface of the output shaft, the gear shaft 2 and the gear shaft 3 are respectively meshed and connected with the two sides of the surface of the gear 3.

[0006] According to the above technical solution, the input gear shaft is an input herringbone gear shaft, and the first bearing is a NU-type cylindrical roller bearing, wherein two NU-type cylindrical roller bearings are distributed at both ends of the input herringbone gear shaft.

[0007] According to the above technical solution, the gear 1 and the gear 2 are primary gears, and the gear shaft 2 and the gear shaft 3 are secondary gear shafts.

[0008] According to the above technical solution, the four bearings 2 are respectively distributed at both ends of the gear shaft 2 and the gear shaft 3.

[0009] According to the above technical solution, the gear 1 and the gear 2 are not in the same plane, wherein the gear 1 is close to the input herringbone gear shaft, and the gear 2 is close to the output shaft.

[0010] According to the above technical solution, gear one and gear two are respectively connected to gear shaft two and gear shaft three with flat keys, and gear three is connected to the output shaft with flat keys.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0012] (1) By setting up the input herringbone gear shaft system, the structural conditions that allow axial movement are guaranteed, that is, the axial meshing position of the input herringbone gear and the two input gears can be adaptively adjusted during the torque transmission process to ensure the synchronous meshing of the input herringbone gear with the mating gear respectively, and to ensure the load-balancing of the torque transmitted by the diverging and merging gear pairs on both sides. Reasonable structure and gear parameter configuration can make it easier to select bearings that meet the requirements, and can greatly reduce the volume and weight of the transmission device, thereby improving the transmission efficiency and power density of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] In the figure: 1. Input gear shaft; 2. Gear 1; 3. Gear 2; 4. Gear shaft 2; 5. Gear shaft 3; 6. Gear 3; 7. Output shaft; 8. Housing; 9. Bearing 1; 10. Bearing 2; 11. Bearing 3. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1The utility model provides a technical solution: a closed-loop power splitting and merging adaptive load-sharing transmission mechanism, including a box body 8, an input gear shaft 1 is provided on one side of the box body 8, a bearing 1 9 is provided on one side of the input gear shaft 1, a gear shaft 2 4 and a gear shaft 3 5 are provided inside the box body 8, and a bearing 2 10 is provided on one side of the gear shaft 2 4 and the gear shaft 3 5, a gear 1 2 is provided on the surface of the gear shaft 2 4, a gear 2 3 is provided on the surface of the gear shaft 3 5, and the gear 1 2 and the gear 2 3 are respectively meshed with the two sides of the surface of the input gear shaft 1, an output shaft 7 is provided on one side of the box body 8, a bearing 3 11 is provided on the surface of the output shaft 7, a gear 3 6 is provided on the surface of the output shaft 7, and the gear shaft 2 4 and the gear shaft 3 are respectively meshed with the two sides of the surface of the input gear shaft 1, 5 are respectively meshed with both sides of the surface of gear three 6, the input gear shaft 1 is the input herringbone gear shaft, bearing one 9 is a NU type cylindrical roller bearing, of which two NU type cylindrical roller bearings are distributed at both ends of the input herringbone gear shaft 1, gear one 2 and gear two 3 are the first-level gears, gear shaft two 4 and gear shaft three 5 are the second-level gear shafts, bearing two 10 has four pieces distributed at both ends of gear shaft two 4 and gear shaft three 5, gear one 2 and gear two 3 are not in the same plane, of which gear one 2 is close to the input herringbone gear shaft 1, gear two 3 is close to the output shaft 7, gear one 2 and gear two 3 are respectively connected with gear shaft two 4 and gear shaft three 5 with flat keys, and gear three 6 is connected with the output shaft 7 with flat keys.

[0017] Specifically, the input gear shaft drives gear shaft 2 and gear shaft 3 at the same time through gear transmission, and then gear shaft 2 and gear shaft 3 drive the output shaft through the gear pair at the same time to transmit and output torque. The input herringbone gear shaft system ensures the structural conditions that allow axial movement, that is, the axial meshing position of the input herringbone gear and the two input gears can be adaptively adjusted during the torque transmission process to ensure the synchronous meshing of the input herringbone gear with the matching gear respectively, and to ensure the uniformity of the torque transmitted by the diverging and merging gear pairs on both sides. The teeth adopt herringbone teeth, and the bearings adopt NU-type cylindrical roller bearings or other support bearings that can realize the axial movement of the shaft system. In addition, The external coupling of the shaft connection needs to ensure that the shaft can move freely in the axial direction. The transmission device adopts a power splitting and merging structure. The radial forces of the input and output shaft systems offset each other. The bearings bear a small load and it is easy to select suitable bearings. The high-speed stage adopts a herringbone gear structure. The shaft bearings do not bear axial force, the additional load on the bearings is small, and it is easy to select high-speed bearings that meet the requirements. The input herringbone gear shaft can ensure the consistency of the side clearance of the left and right rotating gears on the shaft through axial adaptive movement, and ultimately ensure the uniform load of the herringbone gear. The transmission device with a power splitting and merging structure has the advantages of small size, light weight, high transmission efficiency and high power density.

[0018] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A closed-loop power splitting and merging adaptive load-sharing transmission mechanism, comprising a box (8), characterized in that: An input gear shaft (1) is provided on one side of the housing (8), and a bearing 1 (9) is provided on one side of the input gear shaft (1). Gear shaft 2 (4) and gear shaft 3 (5) are provided inside the housing (8), and bearing 2 (10) is provided on one side of each of the gear shaft 2 (4) and gear shaft 3 (5). Gear 1 (2) is provided on the surface of the gear shaft 2 (4), and gear 2 (3) is provided on the surface of the gear shaft 3 (5). Gear 1 (2) and gear 2 (3) are respectively meshed and connected with both sides of the surface of the input gear shaft (1). An output shaft (7) is provided on one side of the housing (8), and a bearing 3 (11) is provided on the surface of the output shaft (7). Gear 3 (6) is provided on the surface of the output shaft (7), and gear shaft 2 (4) and gear shaft 3 (5) are respectively meshed and connected with both sides of the surface of the gear 3 (6).

2. The closed-loop power splitting and combining adaptive load-sharing transmission mechanism according to claim 1, characterized in that: The input gear shaft (1) is an input herringbone gear shaft, and the bearing 1 (9) is a NU-type cylindrical roller bearing, wherein two NU-type cylindrical roller bearings are distributed at both ends of the input gear shaft (1).

3. The closed-loop power splitting and combining adaptive load-sharing transmission mechanism according to claim 1, characterized in that: The gear one (2) and the gear two (3) are first-stage gears, and the gear shaft two (4) and the gear shaft three (5) are second-stage gear shafts.

4. The closed-loop power splitting and combining adaptive load-sharing transmission mechanism according to claim 1, characterized in that: The bearing 2 (10) has four pieces distributed at both ends of the gear shaft 2 (4) and the gear shaft 3 (5).

5. The closed-loop power splitting and combining adaptive load-sharing transmission mechanism according to claim 1, characterized in that: Gear 1 (2) and gear 2 (3) are not in the same plane, wherein gear 1 (2) is close to the input gear shaft (1), and gear 2 (3) is close to the output shaft (7).

6. The closed-loop power splitting and combining adaptive load-sharing transmission mechanism according to claim 1, characterized in that: Gear 1 (2) and gear 2 (3) are respectively connected to gear shaft 2 (4) and gear shaft 3 (5) by flat keys, and gear 3 (6) is connected to the output shaft (7) by flat keys.

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