Staggered shaft type transmission structure and speed reducer

Abstract

The utility model provides a staggered shaft type transmission structure and a speed reducer, and belongs to the technical field of speed reducer transmission structures. Comprising a bottom shell and a top shell which are fixed through bolts to form a speed reducer shell, the interior of the shell is divided into a first transmission cavity and a second transmission cavity through a partition plate, and sliding grooves are formed in the two sides of the second transmission cavity; the transmission gear set comprises a rotating shaft and is rotationally connected with the partition plate in a matched mode; the first transmission gear is in meshed connection with the fourth transmission gear through a driving gear; the second transmission gear and the fifth transmission gear are symmetrically arranged in the second transmission cavity; and the sliding block is movably connected into the sliding groove, a third transmission tooth is rotationally connected to the sliding block, and the third transmission tooth, the fifth transmission tooth and the second transmission tooth are perpendicularly arranged in a staggered mode and connected with the two transmission teeth in a matched and meshed mode. Through the design of a staggered shaft type transmission structure, a single driving assembly can drive two output shafts, and multiple transmission modes of synchronous same-direction or synchronous different-direction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducer transmission structures, in particular to a staggered shaft transmission structure and a speed reducer. Background Art

[0002] In the field of transmission equipment, reducers, as an important component of mechanical transmission systems, are widely used in various industrial equipment and mechanical equipment. Traditional reducers mostly adopt parallel shaft or coaxial transmission structures, achieving power reduction and transmission through the meshing of multiple gears.

[0003] However, with the rapid development of modern industrial technology, the performance requirements for transmission equipment are becoming increasingly demanding. Traditional reducers often struggle to meet the complex and ever-changing transmission requirements, often requiring synchronous, same-direction or synchronous, counter-directional transmission. Furthermore, due to the limitations of their transmission structure, traditional reducers often require the replacement of different gear combinations when adjusting the transmission ratio and transmission mode. This not only increases maintenance costs but also reduces the flexibility of the transmission system.

[0004] Therefore, the present application provides a staggered shaft transmission structure and a reducer to meet the needs. Utility Model Content

[0005] The technical problem addressed by this utility model is to provide a staggered-axis transmission structure and reducer to address the complex and ever-changing transmission requirements of existing equipment, which often struggle to meet the requirements for synchronous, same-direction or synchronous, counter-directional transmission. Furthermore, due to the limitations of their transmission structure, conventional reducers often require the replacement of different gear combinations when adjusting the transmission ratio and transmission mode, which not only increases maintenance costs but also reduces the flexibility of the transmission system.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A staggered axis transmission structure includes: a bottom shell and a top shell, which are fixed by bolts to form a reducer housing, and the interior of the housing is divided into a first transmission chamber and a second transmission chamber by a partition, and slide grooves are provided on both sides of the second transmission chamber; a transmission gear set includes a rotating shaft, and a fourth transmission tooth and a fifth transmission tooth symmetrically fixed at both ends of the rotating shaft, and the rotating shaft is rotatably connected with the partition; the first transmission tooth is symmetrically arranged inside the first transmission chamber with the fourth transmission tooth, and the two are meshed with driving teeth, and the driving teeth are vertically staggered with the first transmission tooth and the transmission gear set; the second transmission tooth is symmetrically arranged inside the second transmission chamber with the fifth transmission tooth, and the opposite sides of the fifth transmission tooth and the second transmission tooth are respectively provided with a first spline tooth and a second spline tooth; a slider is movably connected inside the slide groove, and the slider is rotatably connected with a third transmission tooth, and the third transmission tooth is vertically staggered with the fifth transmission tooth and the second transmission tooth and meshed with the two transmission teeth.

[0008] Preferably, a driving shaft is provided at one end of the driving tooth, and the driving shaft is rotatably connected to the side wall of the reducer housing and protrudes outside the housing for connecting to the driving assembly.

[0009] Preferably, a first output shaft is provided at one end of the first transmission tooth. The first output shaft is rotatably connected to the end wall of the reducer housing and protrudes from the outside of the housing.

[0010] Preferably, a second output shaft is provided at one end of the second transmission tooth. The second output shaft is rotatably connected to the end wall of the reducer housing and protrudes from the outside of the housing. The central axes of the first output shaft and the second output shaft are collinear.

[0011] Preferably, it also includes a driving auxiliary tooth, which is rotatably connected to the end wall of the first transmission cavity away from the driving tooth through a rotating rod fixed at one end of the driving auxiliary tooth, and is symmetrically arranged with the driving tooth. The driving auxiliary tooth is engaged and connected with the first transmission tooth and the fourth transmission tooth.

[0012] Preferably, the first spline teeth and the second spline teeth are both wedge-shaped block structures distributed in an annular array, and the first spline teeth and the second spline teeth are configured to engage with each other when the second transmission tooth and the fifth transmission tooth are close to each other.

[0013] Preferably, two sliders are provided and are respectively slidably connected inside the two slide grooves, and threaded holes are provided at the upper and lower ends of the sliders.

[0014] Preferably, it also includes a fixing bolt for passing through the reducer housing and threadedly connected to the threaded hole. A mounting hole for fixed connection with the threaded hole is opened on the side wall of the slide groove of the reducer housing; the drive shaft, the first output shaft, the second output shaft and the rotating rod of the driving auxiliary tooth and the reducer housing are all rotatably connected through roller bearings.

[0015] Preferably, the rotating shaft is rotatably connected to the partition through a roller bearing, and a through groove for assembling the roller bearing is provided on the partition.

[0016] A speed reducer comprises the above-mentioned staggered shaft transmission structure.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. Through the ingenious staggered shaft transmission structure design, a single drive assembly can drive two output shafts, achieving multiple transmission modes of synchronous same direction or synchronous opposite direction. This design not only improves the flexibility of the reducer, but also greatly broadens its application range, meeting the transmission requirements of different equipment and working conditions.

[0019] 2. During the transmission process, the introduction of auxiliary drive teeth as auxiliary support and transmission components, which mesh with the drive teeth and transmission gear set, effectively ensures that the first and fourth transmission teeth are subjected to balanced forces during transmission, significantly improving transmission stability and reliability. Simultaneously, within the second transmission cavity, the design of the slider and third transmission teeth ensures that the second and fifth transmission teeth also maintain balanced forces during transmission, further enhancing the overall transmission stability of the reducer.

[0020] 3. The second transmission tooth in the reducer can slide linearly relative to the fifth transmission tooth. By adjusting the relative position of the two, the transmission structure of the reducer can be changed, and the transmission ratio can be adjusted or the transmission mode can be switched. This design allows the reducer to be flexibly adjusted according to actual needs, with strong adaptability and customizability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the reducer of the utility model;

[0024] Figure 3 This is a schematic diagram of the bottom shell structure of the utility model;

[0025] Figure 4 Schematic diagram of the transmission gear set and the second transmission gear structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the slider and the third transmission gear of the utility model.

[0027] In the figure: 1. Bottom shell; 2. Top shell; 3. Drive shaft; 4. First output shaft; 5. Second output shaft; 6. Partition; 7. First transmission chamber; 8. Second transmission chamber; 9. Slide groove; 10. Drive tooth; 11. Drive auxiliary tooth; 12. First transmission tooth; 13. Transmission gear set; 14. Second transmission tooth; 15. Slider; 16. Third transmission tooth; 17. Threaded hole; 18. Rotating shaft; 19. Fourth transmission tooth; 20. Fifth transmission tooth; 21. First spline tooth; 22. Second spline tooth; 23. Fixing bolt.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0029] The following describes in detail a staggered shaft transmission structure and reducer provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to make the embodiments more detailed, the following embodiments are best and preferred embodiments. For some known technologies, those skilled in the art may also adopt other alternative implementations. Furthermore, the accompanying drawings are only for the purpose of describing the embodiments in more detail and are not intended to limit the present invention.

[0030] like Figure 1 - Figure 5 As shown, an embodiment of the present invention provides a staggered axis transmission structure, including: a bottom shell 1 and a top shell 2, which are fixed by bolts to form a reducer housing, and a sealing gasket is provided at the connection to seal the reducer housing, and the interior of the housing is divided into a first transmission chamber 7 and a second transmission chamber 8 by a partition 6, wherein the first transmission chamber 7 and the second transmission chamber 8 are both cylindrical cavity structures, and slide grooves 9 are provided on both sides of the second transmission chamber 8.

[0031] The transmission gear set 13 includes a rotating shaft 18 and a fourth transmission tooth 19 and a fifth transmission tooth 20 symmetrically fixed to both ends of the rotating shaft 18 . The rotating shaft 18 is rotatably connected to the partition plate 6 .

[0032] The first transmission teeth 12 and the fourth transmission teeth 19 are symmetrically arranged inside the first transmission cavity 7, and the two are meshed and connected by the driving teeth 10. The driving teeth 10 are vertically staggered with the first transmission teeth 12 and the transmission gear set 13, wherein the first transmission teeth 12, the fourth transmission teeth 19 and the first driving teeth 10 are all bevel gear structures.

[0033] Furthermore, it also includes a driving auxiliary tooth 11, which is rotatably connected to the end wall of the first transmission chamber 7 away from the driving tooth 10 through a rotating rod fixed at one end of the driving auxiliary tooth 11, and is symmetrically arranged with the driving tooth 10. The driving auxiliary tooth 11 is engaged and connected with the first transmission tooth 12 and the fourth transmission tooth 19.

[0034] The auxiliary driving teeth 11 cooperate with the driving teeth 10 to support and mesh between the first transmission teeth 12 and the fourth transmission teeth 19, ensuring that the forces on both sides of the first transmission teeth 12 and the fourth transmission teeth 19 are balanced during the transmission process, thereby ensuring the transmission stability of both.

[0035] The second transmission tooth 14 is symmetrically arranged inside the second transmission cavity 8 with the fifth transmission tooth 20, and the first spline tooth 21 and the second spline tooth 22 are respectively provided on the opposite sides of the fifth transmission tooth 20 and the second transmission tooth 14. The second transmission tooth 14 can slide linearly toward or away from the fifth transmission tooth 20 inside the second transmission cavity 8, thereby adjusting the transmission structure of the reducer.

[0036] Among them, the first spline teeth 21 and the second spline teeth 22 are both wedge-shaped block structures distributed in a ring array, and the first spline teeth 21 and the second spline teeth 22 are configured to cooperate and engage with each other when the second transmission tooth 14 and the fifth transmission tooth 20 are close to each other, thereby realizing the synchronous rotation of the transmission gear set 13 and the second transmission tooth 14.

[0037] The slider 15 is movably connected inside the slide groove 9. The third transmission tooth 16 is rotatably connected to the slider 15. The third transmission tooth 16 is vertically staggered with the fifth transmission tooth 20 and the second transmission tooth 14 and is engaged with the two transmission teeth.

[0038] Among them, there are two sliders 15, and they are respectively slidably connected to the inside of the two slide grooves 9. Threaded holes 17 are opened at the upper and lower ends of the sliders 15. The third transmission tooth 16 is supported and meshed between the second transmission tooth 14 and the fifth transmission tooth 20 by rotating the two sliders 15 respectively, ensuring that the second transmission tooth 14 and the fifth transmission tooth 20 are subjected to balanced forces on both sides during the transmission process, thereby ensuring the transmission stability of the two.

[0039] Furthermore, it also includes a fixing bolt 23 for passing through the reducer housing and threadedly connected to the threaded hole 17. A mounting hole for fixing the threaded hole 17 is opened on the side wall of the slide groove 9 of the reducer housing. The slider 15 can be fixed in the slide groove 9 close to or away from one end of the second transmission cavity 8 by the fixing bolt 23, and when the slider 15 is fixed at the end away from the second transmission cavity 8, the third transmission tooth 16 is completely disengaged from between the second transmission tooth 14 and the fifth transmission tooth 20, so that the second transmission tooth 14 and the fifth transmission tooth 20 are close to each other and tightly attached. When the slider 15 is fixed at the end close to the second transmission cavity 8, the second transmission tooth 14 and the fifth transmission tooth 20 are away from each other and are both engaged and connected with the third transmission tooth 16.

[0040] like Figure 2 As shown, a drive shaft 3 is provided at one end of the drive tooth 10. The drive shaft 3 is rotatably connected to the side wall of the reducer housing and protrudes outside the housing for connecting to a drive component, which includes but is not limited to a drive motor and a drive cylinder.

[0041] like Figure 2 As shown, a first output shaft 4 is provided at one end of the first transmission tooth 12, and the first output shaft 4 is rotatably connected to the end wall of the reducer housing and protrudes from the outside of the housing; a second output shaft 5 is provided at one end of the second transmission tooth 14, and the second output shaft 5 is rotatably connected to the end wall of the reducer housing and protrudes from the outside of the housing. The central axes of the first output shaft 4 and the second output shaft 5 are collinear, and can be connected to two output components respectively, so that a single drive component can be transmitted through the reducer, and two different devices can be driven synchronously in the same direction or synchronously in different directions.

[0042] Furthermore, the first transmission teeth 12 , the second transmission teeth 14 , the fourth transmission teeth 19 , and the fifth transmission teeth 20 have the same structure, and the driving teeth 10 , the auxiliary driving teeth 11 , and the third transmission teeth 16 have the same structure.

[0043] Among them, the driving shaft 3, the first output shaft 4, the second output shaft 5, the rotating rod of the driving auxiliary tooth 11 and the reducer housing are all rotatably connected through roller bearings; and the rotating shaft 18 is rotatably connected with the partition 6 through roller bearings. The partition 6 is provided with a through groove for assembling roller bearings, which ensures stable transmission between the gear sets inside the reducer while reducing rotational friction during transmission and improving transmission efficiency.

[0044] A speed reducer comprises the above-mentioned staggered shaft transmission structure.

[0045] The technical solution provided by this utility model operates as follows: When the third transmission teeth 16 mesh with the second transmission teeth 14 and the fifth transmission teeth 20, the drive assembly is connected to the reducer via the drive shaft 3. When the drive assembly is activated, the drive shaft 3 drives the drive teeth 10 to rotate. Because the drive teeth 10 are arranged vertically and staggered within the first transmission cavity 7, they simultaneously mesh with the first transmission teeth 12 and the transmission gear set 13 (specifically, the fourth transmission teeth 19), achieving initial power distribution. The rotation of the drive teeth 10 drives the rotation of the first and fourth transmission teeth 12, 19. Because the first and fourth transmission teeth 12, 19 are both bevel gear structures, the meshing between them transmits power and changes the direction of the rotating shaft 18. Simultaneously, the auxiliary drive teeth 11, serving as auxiliary support and transmission components, are rotatably connected to the sidewalls of the first transmission cavity 7 via their rotating rods and are symmetrically arranged with the drive teeth 10. The auxiliary drive teeth 11 mesh with the first and fourth transmission teeth 12, 19, ensuring balanced force during transmission and improving transmission stability. The fifth transmission tooth 20 in the transmission gear set 13 rotates with the rotating shaft 18, and its rotational power is transmitted to the second transmission tooth 14 through the third transmission tooth 16 in the second transmission cavity 8. Since the third transmission tooth 16 is vertically staggered and meshed with the fifth transmission tooth 20 and the second transmission tooth 14, the power transmitted from the fifth transmission tooth 20 to the second transmission tooth 14 is redirected again, so that the second transmission tooth 14 rotates in the same direction as the first transmission tooth 12, thereby realizing synchronous and unidirectional output of the two output shafts (specifically, the first output shaft 4 and the second output shaft 5).

[0046] When the slider 15 is fixed on the side of the slide groove 9 away from the second transmission cavity 8, and the second transmission tooth 14 and the fifth transmission tooth 20 are close to each other, so that the first spline tooth 21 and the second spline tooth 22 are engaged with each other, the second transmission tooth 14 is directly driven by the fifth transmission tooth 20, so that the synchronous and directional output of the two output shafts can be achieved.

[0047] When the slider 15 is fixed on the side of the slide groove 9 away from the second transmission cavity 8, and the second transmission tooth 14 and the fifth transmission tooth 20 are away from each other, the second transmission tooth 14 is not driven, and the reducer only effectively drives the first output shaft 4.

[0048] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A staggered shaft transmission structure, characterized in that: include: The bottom shell (1) and the top shell (2) are fixed by bolts to form a reducer housing, and the interior of the housing is divided into a first transmission chamber (7) and a second transmission chamber (8) by a partition (6), and slide grooves (9) are provided at both sides of the second transmission chamber (8); A transmission gear set (13) includes a rotating shaft (18), and a fourth transmission tooth (19) and a fifth transmission tooth (20) symmetrically fixed to both ends of the rotating shaft (18), wherein the rotating shaft (18) is rotatably connected to the partition (6); The first transmission tooth (12) and the fourth transmission tooth (13) are symmetrically arranged inside the first transmission cavity (7), and the two are meshed and connected via the driving tooth (10), and the driving tooth (10) is vertically staggered with the first transmission tooth (12) and the transmission gear set (13); The second transmission tooth (14) is symmetrically arranged with the fifth transmission tooth (20) inside the second transmission cavity (8), and the first spline tooth (21) and the second spline tooth (22) are respectively provided on opposite sides of the fifth transmission tooth (20) and the second transmission tooth (14); A slider (15) is movably connected inside the slide groove (9), and a third transmission tooth (16) is rotatably connected to the slider (15). The third transmission tooth (16) is vertically staggered with the fifth transmission tooth (20) and the second transmission tooth (14) and is meshed with the two transmission teeth.

2. The staggered shaft transmission structure according to claim 1, characterized in that: A drive shaft (3) is provided at one end of the drive tooth (10); the drive shaft (3) is rotatably connected to the side wall of the reducer housing and protrudes outside the housing for connection to a drive assembly.

3. The staggered shaft transmission structure according to claim 2, characterized in that: A first output shaft (4) is provided at one end of the first transmission tooth (12); the first output shaft (4) is rotatably connected to the end wall of the reducer housing and protrudes from the outside of the housing.

4. The staggered shaft transmission structure according to claim 3, characterized in that: A second output shaft (5) is provided at one end of the second transmission tooth (14). The second output shaft (5) is rotatably connected to the end wall of the reducer housing and protrudes from the outside of the housing. The central axes of the first output shaft (4) and the second output shaft (5) are collinear.

5. The staggered shaft transmission structure according to claim 4, characterized in that: The drive auxiliary tooth (11) is rotatably connected to an end wall of the first transmission cavity (7) away from the drive tooth (10) via a rotating rod fixed at one end of the drive auxiliary tooth (11), and is symmetrically arranged with the drive tooth (10). The drive auxiliary tooth (11) is meshedly connected with the first transmission tooth (12) and the fourth transmission tooth (19).

6. The staggered shaft transmission structure according to claim 1, characterized in that: The first spline teeth (21) and the second spline teeth (22) are both wedge-shaped block structures distributed in an annular array, and the first spline teeth (21) and the second spline teeth (22) are configured to engage with each other when the second transmission teeth (14) and the fifth transmission teeth (20) are brought into close proximity with each other.

7. The staggered shaft transmission structure according to claim 1, characterized in that: Two sliders (15) are provided and are respectively slidably connected inside the two slide grooves (9). Threaded holes (17) are provided at the upper and lower ends of the sliders (15).

8. The staggered shaft transmission structure according to claim 7, characterized in that: It also includes a fixing bolt (23) for passing through the reducer housing and threadedly connected to the threaded hole (17). The reducer housing is provided with a mounting hole on the side wall of the slide groove (9) for fixed connection with the threaded hole (17). The driving shaft (3), the first output shaft (4), the second output shaft (5), the rotating rod of the driving auxiliary tooth (11) and the reducer housing are all rotatably connected through roller bearings.

9. The staggered shaft transmission structure according to claim 1, characterized in that: The rotating shaft (18) is rotatably connected to the partition (6) via a roller bearing, and a through groove for assembling the roller bearing is provided on the partition (6).

10. A speed reducer comprising the staggered shaft transmission structure according to any one of claims 1 to 9.

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