Gradient-speed circulating gear set mechanism

Abstract

The invention provides a gradient speed circulating gear set mechanism, and relates to the technical field of gear sets, the gradient speed circulating gear set mechanism comprises a gear mechanism, the gear mechanism comprises a base, one side of the base is provided with a first rotating hole, one side of the base is provided with a second rotating hole, the inner wall of the first rotating hole is rotatably connected with a first shaft rod, and the inner wall of the second rotating hole is rotatably connected with a second shaft rod; an elliptical gear is fixedly connected to the outer surface of the first shaft rod, a second shaft rod is rotatably connected to the inner wall of the second rotating hole, a fixed gear is fixedly connected to the outer surface of the second shaft rod, and an elastic mechanism is arranged in the base. According to the invention, when the elliptical gear rotates, the side surfaces with different radians are in contact with the chain when the ellipse rotates, so that the chain has different rates when passing through the elliptical gear during rotation, and then the fixed gear can be driven to rotate at different rotating speeds; and therefore, the fixed gear rotates at a uniform variable speed.

Description

Technical Field

[0001] The present invention relates to the technical field of gear sets, and in particular to a gradually variable speed cyclic gear set mechanism. Background Art

[0002] In the prior art, during the operation of existing gear units, gears can perform uniform transmission through a series of transmission components, and at the same time, these components can also convert a low-speed output end into a high-speed output end. However, in actual applications, some components using gear transmission need to change the output speed so that the output end does not rotate at a uniform speed but at a non-uniform speed. Therefore, a gradually variable speed cyclic gear set mechanism is needed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies in the prior art that some components using gear transmission need to change the output speed so that the output end does not rotate at a uniform speed but at a non-uniform speed.

[0004] To achieve the above objective, the present invention adopts the following technical solution: A gradually variable speed cyclic gear set mechanism, including a gear mechanism. The gear mechanism includes a base. A first rotation hole is opened on one side of the base, and a second rotation hole is opened on one side of the base. The inner wall of the first rotation hole is rotationally connected to a first shaft rod, and an elliptical gear is fixedly connected to the outer surface of the first shaft rod. The inner wall of the second rotation hole is rotationally connected to a second shaft rod, and a fixed gear is fixedly connected to the outer surface of the second shaft rod. A tensioning mechanism is arranged inside the base. The tensioning mechanism includes a fixed hole opened on one side of the base. Two sliding grooves are opened on the inner wall of the fixed hole. A plurality of sliding plates are slidably connected to the inner wall of the sliding grooves, and the outer surface of the sliding plates is slidably connected to the inner wall of the fixed hole. A fixing plate is fixedly connected between one sides of two sliding plates respectively. A rotation hole is opened on one side of the fixing plate, and a rotating rod is rotationally connected to the inner wall of the rotation hole. A limiting gear is fixedly sleeved on the outer surface of the rotating rod. A chain is arranged on the outer surface of the fixed gear. The limiting gear, the fixed gear, and the elliptical gear are connected by chain transmission.

[0005] As a preferred embodiment, two sliders are fixedly connected to the outer surface of the sliding plate. A plurality of rotation grooves are opened on both sides of each slider, and a rotating roller is rotationally connected to the inner wall of each rotation groove.

[0006] As a preferred embodiment, the rotating rollers on both sides are located on both sides of the slider, and the outer surface of the rotating roller is attached to the sliding groove.

[0007] As a preferred embodiment, a tensioning component is arranged on the inner wall of the sliding groove. The tensioning component includes a fixed shell fixed to the inner wall of the sliding groove.

[0008] As a preferred embodiment, two first sliding holes are formed in the inner wall of the fixed housing. A first threaded rod is slidably connected to the inner wall of the first sliding hole. Two threaded rings are rotatably connected to the inner wall of the fixed housing. The inner wall of the threaded ring is threadedly connected to the outer surface of the first threaded rod.

[0009] As a preferred embodiment, a first rotating ring is rotatably sleeved on one end of the first threaded rod. A spring is fixedly connected to one side of the first rotating ring.

[0010] As a preferred embodiment, the tensioning assembly further includes a second sliding hole formed in one side of the sliding plate. A second threaded rod is slidably connected to the inner wall of the second sliding hole.

[0011] As a preferred embodiment, a second rotating ring is rotatably sleeved on one end of the second threaded rod. One side of the second rotating ring is fixedly connected to one end of the spring. A nut is threadedly sleeved on the outer surface of the second threaded rod.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In the present invention, the elliptical gear and the first shaft are the driving shafts. The first shaft is driven to rotate by a driving device, and the driving device can be a motor. The second shaft and the fixed gear are the driven shafts, and the second shaft drives an external device to rotate. The elliptical gear drives the fixed gear to rotate through a chain, and the chain is tensioned and loosened by a tensioning mechanism. During the rotation of the elliptical gear, the chain will become loose or tight. At this time, the tensioning mechanism is used to tension and loosen the chain, which can prevent the chain from falling off the outer surface of the fixed gear or the elliptical gear. The tensioning mechanism drives the limiting gear to move. The limiting gear is meshed with the chain, and the limiting gear drives the chain to move, so that the chain is in a taut state. When the elliptical gear rotates, since the ellipse has different arc-shaped sides contacting the chain during rotation, the chain will have different speeds when passing through the elliptical gear, and thus the fixed gear can be driven to rotate at different speeds. At the same time, due to the continuous rotation of the elliptical gear, the fixed gear rotates at a uniform variable speed.

[0013] 2. In the present invention, the slider is limited by the fixing hole, so that the slider can only slide on the inner wall of the fixing hole. The slider contacts the inner wall of the chute through the roller. When the sliding plate moves, it will drive the slider to move. At this time, the slider is limited by the roller, so that the sliding plate can only slide along the inner wall of the fixing hole. At the same time, when the roller moves through the slider, the chute contacting the outer surface of the roller causes friction to the roller, thereby causing the roller to rotate. At the same time, the rotation of the roller makes it more convenient for the slider to move. The fixing shell is fixed on the inner wall of the chute and cannot move, which increases the fixing property of the fixing shell. At the same time, the fixing shell is fixed inside the chute, reducing the space occupied by the fixing shell, that is, the overall device will not increase the occupied space. By positioning the first threaded rod through the first sliding hole, the first threaded rod can be quickly installed. At the same time, due to the rotatable effect of the threaded ring, when the first threaded rod slides through the first sliding hole and enters the threaded ring, rotating the threaded ring at this time can drive the first threaded rod to rotate, thereby fixing the first threaded rod at the fixing shell, and then fixing the first threaded rod. At the same time, the threaded structure has a good self-locking effect. When the threaded ring does not rotate, the first threaded rod will not fall from the first sliding hole. At the same time, the cooperation between the first threaded rod and the threaded ring not only makes it convenient to remove the first threaded rod, but also makes it convenient to install the first threaded rod, thereby increasing the installation convenience of the first threaded rod. Through the first rotating ring, when the first threaded rod rotates, the spring connected to it will not rotate, which can well prevent the spring from being twisted and prevent the spring from being bent and damaged. Through the second sliding hole, the second threaded rod can be positioned to facilitate the quick installation of the second threaded rod. Through the second rotating ring, when the second threaded rod rotates, the spring will not rotate accordingly, thereby preventing the spring from being bent and damaged. At the same time, the second threaded rod can be fixed conveniently through the nut. When the nut is rotated, the second threaded rod can be fixed. Through the second threaded rod and the nut, it is convenient to install and remove the second threaded rod, increasing the convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of a variable-speed cyclic gear set mechanism proposed by the present invention; Figure 2 is an exploded perspective view of the gear mechanism of a variable-speed cyclic gear set mechanism proposed by the present invention; Figure 3 is a perspective view of the tensioning mechanism of a variable-speed cyclic gear set mechanism proposed by the present invention; Figure 4 is a perspective view of the tensioning mechanism assembly of a variable-speed cyclic gear set mechanism proposed by the present invention; Figure 5 is a perspective view of the tensioning mechanism of a variable-speed cyclic gear set mechanism proposed by the present invention; Figure 6The present invention provides a three-dimensional diagram of the exploded structure of the tensioning component of a gradual speed cycle gear set mechanism.

[0015] Legend: 1. Gear mechanism; 2. Tension mechanism; 11. base; 12. first rotating hole; 13. second rotating hole; 14. first shaft; 15. elliptical gear; 16. second shaft; 17. fixed gear; 18. chain; 19. limit gear; 21. Slideway; 22. Fixing hole; 23. Slide plate; 24. Sliding block; 25. Fixing plate; 26. Rotating rod; 27. Rotating groove; 28. Rotating roller; 29. ​​Elastic assembly; 291. fixed shell; 292. first sliding hole; 293. threaded ring; 294. first threaded rod; 295. first swivel; 296. second sliding hole; 297. second threaded rod; 298. second swivel; 299. spring; 2910. nut. DETAILED DESCRIPTION

[0016] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0017] Example 1

[0018] like Figure 1-6 As shown, the present invention provides a technical solution: a gradual speed cycle gear set mechanism, a gradual speed cycle gear set mechanism, comprising a gear mechanism 1, the gear mechanism 1 comprising a base 11, a first rotating hole 12 is opened on one side of the base 11, a second rotating hole 13 is opened on one side of the base 11, a first shaft 14 is rotatably connected to the inner wall of the first rotating hole 12, an elliptical gear 15 is fixedly connected to the outer surface of the first shaft 14, a second shaft 16 is rotatably connected to the inner wall of the second rotating hole 13, a fixed gear 17 is fixedly connected to the outer surface of the second shaft 16, a tensioning mechanism 2 is arranged inside the base 11, and the tensioning mechanism 2 comprises a fixing hole 22 opened on one side of the base 11, two slide grooves 21 are opened on the inner wall of the fixing hole 22, a plurality of slide plates 23 are slidably connected to the inner wall of the slide groove 21, the outer surface of the slide plate 23 is slidably connected to the inner wall of the fixing hole 22, a fixing plate 25 is fixedly connected between one side of each of the slide plates 23, a rotating hole is opened on one side of the fixing plate 25, and a rotating rod 26 is rotatably connected to the inner wall of the rotating hole, a limit gear 19 is fixedly sleeved on the outer surface of the rotating rod 26, a chain 18 is set on the outer surface of the fixed gear 17, and the limit gear 19, the fixed gear 17 and the elliptical gear 15 are connected through the chain 18; Through the above embodiments, the elliptical gear 15 and the first shaft rod 14 are the driving shafts. The first shaft rod 14 is driven to rotate by a driving device, and the driving device can be selected as a motor. The second shaft rod 16 and the fixed gear 17 are the driven shafts, and the second shaft rod 16 drives an external device to rotate. The elliptical gear 15 drives the fixed gear 17 to rotate through the chain 18, and the chain 18 is tightened or loosened by the tensioning mechanism 2. During the rotation of the elliptical gear 15, the chain 18 will become loose or tight, and at this time, the tensioning mechanism 2 is used to tighten or loosen it, which can prevent the chain 18 from falling off the outer surface of the fixed gear 17 or the elliptical gear 15. The tensioning mechanism 2 drives the limiting gear 19 to move, and the limiting gear 19 is meshed with the chain 18. The limiting gear 19 drives the chain 18 to move, thereby making the chain 18 in a taut state. When the elliptical gear 15 rotates, since the ellipse has different arc-shaped sides in contact with the chain 18 during rotation, different speeds will occur when the chain 18 passes over the elliptical gear 15 during rotation, and thus the fixed gear 17 can be driven to rotate at different speeds. At the same time, due to the continuous rotation of the elliptical gear 15, the fixed gear 17 rotates at a uniform variable speed. The slider 24 is limited by the fixing hole 22, so that the slider 24 can only slide on the inner wall of the fixing hole 22; Two sliders 24 are fixedly connected to the outer surface of the sliding plate 23. A plurality of rotating grooves 27 are opened on both sides of the slider 24, and rotating rollers 28 are rotatably connected to the inner walls of the rotating grooves 27. The two rotating rollers 28 on both sides are located on both sides of the slider 24, and the outer surfaces of the rotating rollers 28 are attached to the sliding grooves 21; Through the above embodiments, the slider 24 contacts the inner wall of the sliding groove 21 through the rotating roller 28. When the sliding plate 23 moves, it drives the slider 24 to move. At this time, the slider 24 is limited by the rotating roller 28, so that the sliding plate 23 can only slide along the inner wall of the fixing hole 22. At the same time, when the rotating roller 28 moves through the slider 24, the sliding groove 21 in contact with the outer surface of the rotating roller 28 causes friction to the rotating roller 28, thereby causing the rotating roller 28 to rotate. At the same time, the rotation of the rotating roller 28 makes the movement of the slider 24 more convenient; A tensioning component 29 is arranged on the inner wall of the sliding groove 21, and the tensioning component 29 includes a fixed shell 291 fixed on the inner wall of the sliding groove 21; Through the above embodiments, the fixed shell 291 is fixed on the inner wall of the sliding groove 21 and cannot move, which increases the fixing property of the fixed shell 291. At the same time, the fixed shell 291 is fixed inside the sliding groove 21, reducing the space occupied by the fixed shell 291, that is, the overall device does not increase the occupied space; Two first sliding holes 292 are opened on the inner wall of the fixed shell 291, a first threaded rod 294 is slidably connected to the inner wall of the first sliding hole 292, and two threaded rings 293 are rotatably connected to the inner wall of the fixed shell 291. The inner wall of the threaded ring 293 is threadedly connected to the outer surface of the first threaded rod 294; Through the above embodiments, positioning the first threaded rod 294 through the first sliding hole 292 enables the quick installation of the first threaded rod 294. At the same time, due to the rotatable effect of the threaded ring 293, when the first threaded rod 294 slides through the first sliding hole 292 and enters the threaded ring 293, rotating the threaded ring 293 at this time can drive the first threaded rod 294 to rotate, thereby fixing the first threaded rod 294 at the fixed housing 291, and then fixing the first threaded rod 294. At the same time, the threaded structure has a good self-locking effect. When the threaded ring 293 does not rotate, it will not cause the first threaded rod 294 to fall out of the first sliding hole 292. At the same time, the cooperation between the first threaded rod 294 and the threaded ring 293 not only facilitates the removal of the first threaded rod 294, but also makes it convenient for the installation of the first threaded rod 294, thereby increasing the installation convenience of the first threaded rod 294; A first rotating ring 295 is rotatably sleeved at one end of the first threaded rod 294, and a spring 299 is fixedly connected to one side of the first rotating ring 295; Through the above embodiments, when the first threaded rod 294 rotates through the first rotating ring 295, it will not cause the spring 299 connected to it to rotate, which can well prevent the spring 299 from being twisted and prevent the spring 299 from being bent and damaged; The tightening and loosening assembly 29 further includes a second sliding hole 296 opened on one side of the sliding plate 23, and the inner wall of the second sliding hole 296 is slidably connected to a second threaded rod 297; Through the above embodiments, positioning the second threaded rod 297 through the second sliding hole 296 facilitates the quick installation of the second threaded rod 297; A second rotating ring 298 is rotatably sleeved at one end of the second threaded rod 297, one side of the second rotating ring 298 is fixedly connected to one end of the spring 299, and a nut 2910 is threadedly sleeved on the outer surface of the second threaded rod 297; Through the above embodiments, when the second threaded rod 297 rotates through the second rotating ring 298, the spring 299 will not rotate therewith, thereby preventing the spring 299 from being bent and damaged. At the same time, the nut 2910 facilitates the fixing of the second threaded rod 297. When the nut 2910 is rotated, the second threaded rod 297 can be fixed. Through the second threaded rod 297 and the nut 2910, the installation and removal of the second threaded rod 297 are facilitated, increasing the convenience of the equipment; In this embodiment, the elliptical gear 15 and the first shaft rod 14 are the driving shafts. The first shaft rod 14 is driven to rotate by a driving device, and the driving device can be selected as a motor. The second shaft rod 16 and the fixed gear 17 are the driven shafts, and the external device is driven to rotate by the second shaft rod 16. The elliptical gear 15 drives the fixed gear 17 to rotate through the chain 18, and the chain 18 is tightened or loosened by the tensioning mechanism 2. During the rotation of the elliptical gear 15, the chain 18 will become loose or tight. At this time, the tensioning mechanism 2 is used to tighten or loosen it, which can prevent the chain 18 from falling off the outer surface of the fixed gear 17 or the elliptical gear 15. The tensioning mechanism 2 drives the limiting gear 19 to move. The limiting gear 19 is meshed with the chain 18, and the limiting gear 19 will drive the chain 18 to move, thereby making the chain 18 in a taut state. When the elliptical gear 15 rotates, since the ellipse rotates and contacts the chain 18 with different arc-shaped sides during rotation, different speeds will occur when the chain 18 passes over the elliptical gear 15 during rotation. Thus, the fixed gear 17 can be driven to rotate at different speeds. At the same time, due to the continuous rotation of the elliptical gear 15, the fixed gear 17 rotates with uniform variable speed. The slider 24 is limited by the fixing hole 22, so that the slider 24 can only slide on the inner wall of the fixing hole 22. The slider 24 contacts the inner wall of the chute 21 through the roller 28. When the slide plate 23 moves, it will drive the slider 24 to move. At this time, the slider 24 is limited by the roller 28, so that the slide plate 23 can only slide along the inner wall of the fixing hole 22. At the same time, when the roller 28 moves through the slider 24, the chute 21 contacting the outer surface of the roller 28 causes friction on the roller 28, thereby causing the roller 28 to rotate. At the same time, the rotation of the roller 28 makes the movement of the slider 24 more convenient. The fixed shell 291 is fixed on the inner wall of the chute 21 and cannot move, which increases the fixing property of the fixed shell 291. At the same time, the fixed shell 291 is fixed inside the chute 21, reducing the space occupied by the fixed shell 291, that is, the overall device will not increase the occupied space. By positioning the first threaded rod 294 through the first sliding hole 292, the first threaded rod 294 can be quickly installed. At the same time, due to the rotatable effect of the threaded ring 293, when the first threaded rod 294 slides through the first sliding hole 292 and enters the threaded ring 293, rotating the threaded ring 293 at this time can drive the first threaded rod 294 to rotate, thereby fixing the first threaded rod 294 at the fixed shell 291, and then fixing the first threaded rod 294. At the same time, the threaded structure has a good self-locking effect. When the threaded ring 293 does not rotate, it will not cause the first threaded rod 294 to fall out of the first sliding hole 292. At the same time, the cooperation between the first threaded rod 294 and the threaded ring 293 not only facilitates the removal of the first threaded rod 294, but also facilitates the installation of the first threaded rod 294, thereby increasing the installation convenience of the first threaded rod 294. Through the first rotating ring 295, when the first threaded rod 294 rotates, it will not cause the spring 299 connected to it to rotate.It can effectively prevent the spring 299 from being distorted and damaged by bending. The second threaded rod 297 can be positioned through the second sliding hole 296, facilitating the rapid installation of the second threaded rod 297. When the second threaded rod 297 rotates through the second rotating ring 298, the spring 299 will not rotate accordingly, thus preventing the spring 299 from being damaged by bending. At the same time, the second threaded rod 297 can be fixed conveniently through the nut 2910. When the nut 2910 is rotated, the second threaded rod 297 can be fixed. The installation and removal of the second threaded rod 297 are facilitated through the second threaded rod 297 and the nut 2910, enhancing the convenience of the equipment.

[0019] Working principle: As Figure 1-6 shown, during use, when the elliptical gear 15 rotates, since different sides of the ellipse with different curvatures come into contact with the chain 18 during rotation, different speeds will occur when the chain 18 passes over the elliptical gear 15, thus driving the fixed gear 17 to rotate at different speeds. At the same time, due to the continuous rotation of the elliptical gear 15, the fixed gear 17 rotates with a uniform variable speed. Meanwhile, the elastic potential energy of the spring 299 drives the rotating rod 26 to drive the limiting gear 19 to spread to both sides through the second threaded rod 297, the sliding plate 23, and the fixing plate 25, keeping the chain 18 always in a taut state, thereby driving the fixed gear 17 to rotate.

[0020] The above is only a preferred embodiment of the present invention and is not a limitation of the present invention in other forms. Any person skilled in the relevant art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A gradually variable speed cyclic gear train mechanism, comprising a gear mechanism (1), characterized in that: The gear mechanism (1) comprises a base (11), a first rotating hole (12) is formed on one side of the base (11), a second rotating hole (13) is formed on one side of the base (11), a first shaft (14) is rotatably connected to the inner wall of the first rotating hole (12), an elliptical gear (15) is fixedly connected to the outer surface of the first shaft (14), a second shaft (16) is rotatably connected to the inner wall of the second rotating hole (13), a fixed gear (17) is fixedly connected to the outer surface of the second shaft (16), a loosening mechanism (2) is provided inside the base (11), the loosening mechanism (2) comprises a fixing hole (22) formed on one side of the base (11), the fixing The inner wall of the hole (22) is provided with two slide grooves (21), the inner wall of the slide groove (21) is slidably connected with a plurality of slide plates (23), the outer surface of the slide plate (23) is slidably connected with the inner wall of the fixed hole (22), a fixing plate (25) is fixedly connected between one side of each of the slide plates (23), a rotating hole is provided on one side of the fixing plate (25), and a rotating rod (26) is rotatably connected to the inner wall of the rotating hole, a limit gear (19) is fixedly sleeved on the outer surface of the rotating rod (26), a chain (18) is provided on the outer surface of the fixed gear (17), and the limit gear (19), the fixed gear (17) and the elliptical gear (15) are connected through the chain (18).

2. The variable-speed cyclic gear train mechanism according to claim 1, characterized in that: Two sliding blocks (24) are fixedly connected to the outer surface of the slide plate (23), a plurality of rotation grooves (27) are provided on both sides of the sliding blocks (24), and the inner walls of the rotation grooves (27) are rotatably connected to rollers (28).

3. The variable-speed cyclic gear train mechanism according to claim 2, wherein: The rollers (28) on both sides are located on both sides of the slider (24), and the outer surfaces of the rollers (28) are attached to the slide groove (21).

4. A variable-speed cyclic gear train mechanism according to claim 1, characterized in that: The inner wall of the slide groove (21) is provided with a tightening assembly (29), and the tightening assembly (29) comprises a fixing shell (291) fixed to the inner wall of the slide groove (21).

5. A variable-speed cyclic gear train mechanism according to claim 4, characterized in that: The inner wall of the fixed shell (291) is provided with two first sliding holes (292), the inner walls of the first sliding holes (292) are slidably connected to first threaded rods (294), the inner wall of the fixed shell (291) is rotatably connected to two threaded rings (293), the inner walls of the threaded rings (293) are threadedly connected to the outer surfaces of the first threaded rods (294).

6. The variable-speed cyclic gear train mechanism according to claim 5, wherein: A first rotating ring (295) is rotatably sleeved on one end of the first threaded rod (294), and a spring (299) is fixedly connected to one side of the first rotating ring (295).

7. The variable-speed cyclic gear train mechanism according to claim 4, characterized in that: The tensioning assembly (29) further comprises a second sliding hole (296) formed on one side of the slide plate (23), and a second threaded rod (297) is slidably connected to the inner wall of the second sliding hole (296).

8. A continuously variable cyclic gear train mechanism according to claim 7, characterized in that: A second rotating ring (298) is rotatably sleeved on one end of the second threaded rod (297), one side of the second rotating ring (298) is fixedly connected to one end of a spring (299), and a nut (2910) is threadably sleeved on the outer surface of the second threaded rod (297).

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