A low-noise gear shaft with a modified surface

Abstract

The utility model relates to the technical field of gear shafts, and discloses a low-noise gear shaft with a modified surface, comprising: a first round tube, the right side of the outer surface of the first round tube being fixedly sleeved with a fixed tube. The utility model sets a support block, a threaded rod, a short rod and a rotating rod. Since the inside of the first round tube is threadedly sleeved with the outer surface of the threaded rod, when the round block drives the threaded rod to rotate, the threaded rod will move to the left while rotating. At the same time, the threaded rod will drive the rotating rod and the third gear to rotate through the short rod, and then the third gear will drive the four round shafts to rotate through the four second gears. At this time, the four support blocks will rotate under the drive of the four round shafts. At this time, the four support blocks will support the inside of the first gear during rotation, thereby realizing the function of reducing the noise emitted by the loose connection between the gear and the main shaft during rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shafts, and more specifically, to a low-noise gear shaft with a modified surface. Background Art

[0002] As a mechanical element, the gear shaft is usually used in gear transmission systems. It has an unshakable important position in traditional and modern machinery. Specifically, the gear shaft usually has the shape and size of a gear and is embedded on the outer edge of the wheel. It meshes with another gear and transmits the torque of the input shaft to the output shaft through the meshing action of the teeth.

[0003] Currently, the gear shafts on the market often achieve power and torque transmission through meshing with another gear. This transmission method is characterized by high efficiency, reliability, and stability. However, in order to reduce the production cost of the gear shaft and improve the compatibility of the gear shaft with different gears, the gears on the gear shaft are often not integrated with the shaft. This results in a loose connection between different shafts and gears. At this time, if it is rotated, it will make a huge noise due to the uneven force, causing inconvenience to the operator's operation. In addition, the gear shaft as a whole is often accompanied by vibration during this process, which will affect its performance in transmitting power and torque, increase the wear rate of the gear, and reduce its overall service life. Therefore, it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a low-noise gear shaft with a modified surface, which has the advantage of reducing the noise generated by the loose connection between the gear and the main shaft during rotation.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-noise gear shaft with a modified surface, comprising:

[0006] A first round tube, wherein a fixed tube is fixedly sleeved on the right side of the outer surface of the first round tube, a baffle is fixedly sleeved on the left side of the outer surface of the first round tube, and a first gear is movably connected to the left side of the baffle;

[0007] A rotating mechanism, wherein the rotating mechanism is arranged inside the first circular tube;

[0008] A supporting mechanism, wherein the supporting mechanism is arranged on the left side of the first circular tube;

[0009] In which, the supporting mechanism includes a square block, the right side of the square block is fixedly connected to the left side of the first circular tube, the upper and lower front and rear outer surfaces of the square block are movably connected to the supporting blocks, the interior of the supporting block is fixedly sleeved with a circular shaft, the outer surface of the circular shaft is movably connected to the interior of the square block, one end of the right side of the circular shaft passes through the left side of the first circular tube and extends to the interior of the first circular tube, one end of the right side of the circular shaft is fixedly sleeved with a second gear, the left side of the second gear is movably connected to the interior of the first circular tube, the outer surface of the second gear is meshedly connected with a third gear, and the left side of the third gear is movably connected to the interior of the first circular tube.

[0010] As a preferred technical solution of the utility model, the rotating mechanism includes:

[0011] A threaded rod, the outer surface of which is threadedly sleeved with the right side of the first round tube, a long groove is provided inside the threaded rod, and a round block is fixedly installed on the right side of the threaded rod;

[0012] A short rod, the outer surface of the short rod is movably connected to the inside of the long groove, the outer surface of the short rod is fixedly sleeved with a rotating rod, one end of the rotating rod on the left side extends to the outside of the threaded rod through the inside of the left side of the threaded rod, one end of the rotating rod on the left side is movably connected to the inside of the first round tube, the outer surface of the rotating rod is movably sleeved with a ring, the outer surface of the ring is fixedly sleeved with the inside of the first round tube, and the outer surface of the left end of the rotating rod is fixedly sleeved with the inside of the third gear.

[0013] As a preferred technical solution of the utility model, a second round tube is fixedly installed on the left side of the square block, and a limiting groove is provided on the outer surface of the second round tube.

[0014] As a preferred technical solution of the utility model, a moving block is movably connected inside the limiting groove, and the right side of the moving block is movably connected to the right side inside the second circular tube.

[0015] As a preferred technical solution of the utility model, a first spring is fixedly installed on the outer surface of the moving block, a fixed block is fixedly installed on the other end of the first spring, and the right side of the fixed block is fixedly connected to the right side inside the second circular tube.

[0016] As a preferred technical solution of the utility model, an extrusion block is movably sleeved on the left side inside the second circular tube, a movement rod is fixedly installed on the left side of the extrusion block, and the left side of the movement rod passes through the interior of the second circular tube and extends to the outside of the left side of the second circular tube.

[0017] As a preferred technical solution of the utility model, a second spring is fixedly installed on the left side of the second round tube, and the other end of the second spring is fixedly connected to the outer surface of the motion rod.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model provides a support block, a threaded rod, a short rod and a rotating rod. Since the interior of the first round tube is threadedly sleeved with the outer surface of the threaded rod, when the round block drives the threaded rod to rotate, the threaded rod will move to the left while rotating. At the same time, the threaded rod will drive the rotating rod and the third gear to rotate through the short rod. Then the third gear will drive the four circular shafts to rotate through the four second gears. At this time, the four support blocks will rotate driven by the four circular shafts. At this time, the four support blocks will support the inside of the first gear during rotation, thereby achieving the function of reducing the noise generated by the loose connection between the gear and the main shaft during rotation.

[0020] 2. The utility model sets a moving block, an extrusion block, a moving rod and a second spring. Due to the elastic force of the second spring, when the moving rod moves to the right under the drive of the second spring, the extrusion block will move to the right under the drive of the moving rod. At this time, the outer surface of the extrusion block will squeeze and push the four moving blocks at the same time during the rightward movement so that the four moving blocks move. Due to the limiting effect inside the four limiting grooves, the four moving blocks will move outward to the outside of the second circular tube at the same time. At this time, the four moving blocks will block the first gear, thereby realizing the function of convenient replacement of the first gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the second spring of the utility model;

[0025] Figure 5 It is a schematic cross-sectional structure diagram of a square block of the utility model;

[0026] Figure 6 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] In the figure: 1. first round tube; 2. baffle; 3. first gear; 4. square block; 5. support block; 6. round shaft; 7. second gear; 8. third gear; 9. threaded rod; 10. round block; 11. short rod; 12. rotating rod; 13. fixed tube; 14. second round tube; 15. limiting groove; 16. moving block; 17. first spring; 18. fixed block; 19. extrusion block; 20. moving rod; 21. second spring; 22. long groove; 23. circular ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 6 As shown, the utility model provides a low-noise gear shaft with a modified surface, including:

[0030] A first round tube 1, a fixed tube 13 is fixedly sleeved on the right side of the outer surface of the first round tube 1, a baffle 2 is fixedly sleeved on the left side of the outer surface of the first round tube 1, and a first gear 3 is movably connected to the left side of the baffle 2;

[0031] A rotating mechanism, which is arranged inside the first circular tube 1;

[0032] A supporting mechanism, which is arranged on the left side of the first circular tube 1;

[0033] Among them, the supporting mechanism includes a square block 4, the right side of the square block 4 is fixedly connected to the left side of the first circular tube 1, the upper and lower front and rear outer surfaces of the square block 4 are movably connected with support blocks 5, the interior of the support block 5 is fixedly sleeved with a circular shaft 6, the outer surface of the circular shaft 6 is movably connected to the interior of the square block 4, one end of the right side of the circular shaft 6 passes through the left side of the first circular tube 1 and extends to the interior of the first circular tube 1, one end of the right side of the circular shaft 6 is fixedly sleeved with a second gear 7, the left side of the second gear 7 is movably connected to the interior of the first circular tube 1, the outer surface of the second gear 7 is meshedly connected with a third gear 8, and the left side of the third gear 8 is movably connected to the interior of the first circular tube 1.

[0034] When the third gear 8 rotates, the four second gears 7 will rotate driven by the third gear 8, and then the four second gears 7 will drive the four support blocks 5 to rotate through the four circular shafts 6. At this time, the four support blocks 5 will squeeze the inside of the first gear 3 during rotation, thereby achieving a supporting effect on the inside of the first gear 3.

[0035] The rotating mechanism includes:

[0036] A threaded rod 9, the outer surface of which is threadedly sleeved with the right side of the first round tube 1, a long groove 22 is provided inside the threaded rod 9, and a round block 10 is fixedly installed on the right side of the threaded rod 9;

[0037] A short rod 11, the outer surface of the short rod 11 is movably connected to the inside of the long groove 22, the outer surface of the short rod 11 is fixedly sleeved with a rotating rod 12, one end of the left side of the rotating rod 12 extends through the inside of the left side of the threaded rod 9 to the outside of the threaded rod 9, one end of the left side of the rotating rod 12 is movably connected to the inside of the first circular tube 1, the outer surface of the rotating rod 12 is movably sleeved with a ring 23, the outer surface of the ring 23 is fixedly sleeved with the inside of the first circular tube 1, and the outer surface of the left end of the rotating rod 12 is fixedly sleeved with the inside of the third gear 8.

[0038] When the round block 10 drives the threaded rod 9 to rotate, since the outer surface of the threaded rod 9 is sleeved with the internal thread of the first round tube 1, the threaded rod 9 will move forward while rotating. At the same time, the threaded rod 9 will drive the rotating rod 12 and the third gear 8 to rotate through the short rod 11.

[0039] A second round tube 14 is fixedly mounted on the left side of the square block 4 , and a limiting groove 15 is provided on the outer surface of the second round tube 14 .

[0040] The interior of the second circular tube 14 is connected to the outside through four limiting grooves 15 .

[0041] The interior of the limiting groove 15 is movably connected with a moving block 16 , and the right side of the moving block 16 is movably connected to the right side of the interior of the second circular tube 14 .

[0042] Due to the design of the four limiting grooves 15 , the movement of the four moving blocks 16 will be limited.

[0043] A first spring 17 is fixedly mounted on the outer surface of the moving block 16 , a fixing block 18 is fixedly mounted on the other end of the first spring 17 , and the right side of the fixing block 18 is fixedly connected to the right side inside the second circular tube 14 .

[0044] Due to the elastic force of the four first springs 17 , the movement of the four moving blocks 16 will have a good resetting effect.

[0045] The left side of the second circular tube 14 is movably sleeved with an extrusion block 19 , and the left side of the extrusion block 19 is fixedly installed with a movement rod 20 . The left side of the movement rod 20 penetrates the inside of the second circular tube 14 and extends to the outside of the left side of the second circular tube 14 .

[0046] When the moving rod 20 drives the extrusion block 19 to move rightward, the extrusion block 19 will squeeze the outer surfaces of the four moving blocks 16 at the same time, and the four moving blocks 16 will move to the outside of the second circular tube 14 at the same time through the four limiting grooves 15.

[0047] A second spring 21 is fixedly mounted on the left side of the second round tube 14 , and the other end of the second spring 21 is fixedly connected to the outer surface of the movement rod 20 .

[0048] Due to the elastic force of the second spring 21, the movement rod 20 will be driven to move rightward.

[0049] The working principle and use process of this utility model:

[0050] First, the operator flexibly connects the right side of the first gear 3 with the left side of the baffle 2. At this time, the square block 4 will be located inside the first gear 3 as a whole. Since the second spring 21 in the figure is in a stretched state, when the moving rod 20 moves to the right due to the elastic force of the second spring 21, the right side of the moving rod 20 will drive the extrusion block 19 to move to the right along the inside of the second circular tube 14. Due to the design of the shape of the extrusion block 19, the extrusion block 19 will simultaneously squeeze the outer surfaces of the four moving blocks 16 during the rightward movement to make the four moving blocks 16 move. Due to the design inside the four limiting grooves 15, the movement of the four moving blocks 16 will be limited. At this time, the extrusion block 19 will drive the four moving blocks 16 to move to the outside of the second circular tube 14 through the four limiting grooves 15 at the same time. At this time, the four first springs 17 will be in a stretched state, and then the four moving blocks 16 will block the movement of the first gear 3 during the movement, thereby facilitating the replacement of first gears 3 of different sizes.

[0051] Then the operator twists the round block 10, and the round block 10 will drive the threaded rod 9 to rotate. Since the outer surface of the threaded rod 9 is threadedly sleeved with the inner thread of the first round tube 1, the threaded rod 9 will move to the left along the inside of the first round tube 1 while rotating. At the same time, the threaded rod 9 will drive the short rod 11 to rotate, and then the short rod 11 will drive the rotating rod 12 to rotate. In this process, the inner part of the left side of the threaded rod 9 will move to the left along the outer surface of the rotating rod 12, and then the third gear 8 will rotate driven by the rotating rod 12. At this time, the third gear 8 will simultaneously drive the four second gears 7 to rotate. At this time, the four circular shafts 6 will rotate driven by the four second gears 7, and then the four circular shafts 6 will respectively drive the four supporting blocks 5 to rotate. At this time, the four supporting blocks 5 will squeeze and push the inside of the rotating first gear 3, thereby supporting the inside of the first gear 3, thereby realizing the function of reducing the noise emitted by the loose connection between the gear and the main shaft during rotation.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise gear shaft with a modified surface, characterized in that: Included are: A first round tube (1), a fixed tube (13) being fixedly sleeved on the right side of the outer surface of the first round tube (1), a baffle (2) being fixedly sleeved on the left side of the outer surface of the first round tube (1), and a first gear (3) being movably connected on the left side of the baffle (2); A rotating mechanism, the rotating mechanism being arranged inside the first circular tube (1); A supporting mechanism, the supporting mechanism being arranged on the left side of the first circular tube (1); The supporting mechanism comprises a square block (4), the right side of the square block (4) is fixedly connected to the left side of the first circular tube (1), the upper and lower front and rear outer surfaces of the square block (4) are movably connected to the supporting block (5), the interior of the supporting block (5) is fixedly sleeved with a round shaft (6), the outer surface of the round shaft (6) is movably connected to the interior of the square block (4), one end of the right side of the round shaft (6) passes through the left side of the first circular tube (1) and extends to the interior of the first circular tube (1), one end of the right side of the round shaft (6) is fixedly sleeved with a second gear (7), the left side of the second gear (7) is movably connected to the interior of the first circular tube (1), the outer surface of the second gear (7) is meshingly connected with a third gear (8), and the left side of the third gear (8) is movably connected to the interior of the first circular tube (1).

2. The low-noise gear shaft with a modified surface according to claim 1, characterized in that: The rotating mechanism comprises: A threaded rod (9), the outer surface of the threaded rod (9) being threadably sleeved with the right side of the first round tube (1), a long groove (22) being provided inside the threaded rod (9), and a round block (10) being fixedly mounted on the right side of the threaded rod (9); A short rod (11), the outer surface of the short rod (11) is movably connected to the inside of the long groove (22), the outer surface of the short rod (11) is fixedly sleeved with a rotating rod (12), one end of the left side of the rotating rod (12) extends through the inside of the left side of the threaded rod (9) to the outside of the threaded rod (9), one end of the left side of the rotating rod (12) is movably connected to the inside of the first circular tube (1), the outer surface of the rotating rod (12) is movably sleeved with a circular ring (23), the outer surface of the circular ring (23) is fixedly sleeved with the inside of the first circular tube (1), and the outer surface of the left end of the rotating rod (12) is fixedly sleeved with the inside of the third gear (8).

3. The low-noise gear shaft with a modified surface according to claim 1, characterized in that: A second circular tube (14) is fixedly mounted on the left side of the square block (4), and a limiting groove (15) is provided on the outer surface of the second circular tube (14).

4. The low-noise gear shaft with a modified surface according to claim 3, characterized in that: A moving block (16) is movably connected inside the limiting groove (15), and the right side of the moving block (16) is movably connected to the right side inside the second circular tube (14).

5. The low-noise gear shaft with a modified surface according to claim 4, characterized in that: A first spring (17) is fixedly mounted on the outer surface of the moving block (16), a fixed block (18) is fixedly mounted on the other end of the first spring (17), and the right side of the fixed block (18) is fixedly connected to the right side inside the second circular tube (14).

6. The low-noise gear shaft with a modified surface according to claim 3, characterized in that: An extrusion block (19) is movably sleeved on the left side of the second circular tube (14), a movement rod (20) is fixedly mounted on the left side of the extrusion block (19), and the left side of the movement rod (20) penetrates the interior of the second circular tube (14) and extends to the outside of the left side of the second circular tube (14).

7. The low-noise gear shaft with a modified surface according to claim 3, characterized in that: A second spring (21) is fixedly mounted on the left side of the second circular tube (14), and the other end of the second spring (21) is fixedly connected to the outer surface of the movement rod (20).

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