Damping rotating shaft structure

Abstract

The utility model relates to the technical field of mechanical transmission components, and discloses a damping rotating shaft structure which comprises an intermediate shaft mechanism, end mechanisms are arranged at the upper end and the lower end of the intermediate shaft mechanism, the intermediate shaft mechanism comprises an intermediate shaft body, and the upper end and the lower end of the intermediate shaft body are each fixedly connected with a rotating matching block. And end mechanisms are rotationally mounted on the outer sides of the rotating matching blocks. By adopting the structural design of upper and lower double rotating ends, the middle shaft body is arranged in the middle, the rotating matching blocks with the damping strips are arranged at the upper end and the lower end of the middle shaft body, the end sleeves are rotationally mounted on the outer sides of the rotating matching blocks, and the matching damping strips are also arranged in the matching grooves in the end sleeves. The upper end and the lower end of the whole damping rotating shaft structure are both damping rotating structures, when a single rotating structure is damaged, the function of the whole rotating shaft structure is still normal, meanwhile, damping actually provided by the bilateral damping structures is high, and the time for the whole rotating shaft structure to restore to be stable after rotating is short.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission components, in particular to a damping rotating shaft structure. Background Technique

[0002] A rotating shaft is a shaft that is necessary for connecting the main components of a product and is used in rotational work to bear both bending moment and torque. Currently, based on its actual use, a rotating shaft often has damping, that is, the characteristic that the vibration amplitude gradually decreases due to external actions or the inherent reasons of the system itself, and the quantitative characterization of this characteristic, which is a damping rotating shaft.

[0003] The existing damping rotating shaft structure still has the following problems when in use: its rotating structure often adopts a single-headed damping rotating structure design. After it is installed at the ends on both the upper and lower sides of the rotating shaft, due to its single-sided rotation and the setting of a damping structure at the single-sided rotation part, when its rotating structure is damaged, the function of the overall rotating shaft structure is impaired. At the same time, the damping provided by the single-sided damping structure is limited, and the time for the overall rotating shaft structure to return to stability after rotation is relatively long. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a damping rotating shaft structure, which solves the problems put forward in the background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: a damping rotating shaft structure, including an intermediate shaft mechanism, with end mechanisms arranged at both the upper and lower ends of the intermediate shaft mechanism. The intermediate shaft mechanism includes an intermediate shaft body, and a rotating mating block is fixedly connected to each of the upper and lower ends of the intermediate shaft body. The end mechanisms are rotatably installed on the outer sides of the rotating mating blocks. The end mechanism includes an end sleeve rotatably installed on the outer side of the rotating mating block. Opposite ends of the two end sleeves are provided with shaft mating grooves corresponding to the intermediate shaft body, and rotating mating grooves corresponding to the rotating mating blocks are provided at the ends away from each other of the two shaft mating grooves. A plurality of first damping strips are fixedly connected to the outer circumferential wall of the rotating mating block at equal angles, and a plurality of second damping strips are fixedly connected to the inner circumferential wall of the rotating mating groove at equal angles. The plurality of second damping strips and the plurality of first damping strips on their corresponding sides are arranged in a staggered manner.

[0008] As a further scheme of the utility model: a jacket is fixedly sleeved on the middle part of the outer circumferential wall of the intermediate shaft body, and the upper and lower ends of the jacket are slidably connected to the corresponding end sleeves on their corresponding sides.

[0009] As a further solution of the present utility model: at the center position of the outer side wall of the separated ends of the two end sleeves, a first groove is provided, and four second grooves are equiangularly provided on the periphery of the outer side wall of the separated ends of the two end sleeves.

[0010] As a further solution of the present utility model: four threaded mating sleeves are fixedly connected to the periphery of the outer side wall of the separated ends of the two end sleeves at equal angles, and the four threaded mating sleeves are arranged in a staggered manner with the four second grooves. A threaded connection ring is fixedly connected to the outer side wall of the separated ends of the two end sleeves and outside the first groove, and four mating holes are equiangularly provided on the annular inner side wall of the threaded connection ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. In the present utility model, by adopting the design of the upper and lower double-rotating end structures, a middle shaft body is arranged in the middle, rotating mating blocks with damping strips are arranged at the upper and lower ends of the middle shaft body, and end sleeves are rotatably installed outside the rotating mating blocks. And the mating grooves in the end sleeves are also provided with mating damping strips. The overall damping rotating shaft structure has damping rotating structures at both the upper and lower ends. When a single rotating structure is damaged, the function of the overall rotating shaft structure is still normal. At the same time, the damping provided by the bilateral damping structures is actually stronger, and the time for the overall rotating shaft structure to return to stability after rotation is shorter.

[0013] 2. In the present utility model, a variety of mating installation structures are provided at the end sleeves at the upper and lower ends, that is, a plurality of threaded mating sleeves are provided on the outer side of the separated ends of the two end sleeves, which can cooperate with screws for the installation of the end sleeves. At the same time, a threaded connection ring is provided at the separated ends of the two end sleeves, and the end sleeves can be directly installed by threading. At the same time, four mating holes are equiangularly provided on the threaded connection ring, and bolts can be used to fixedly install the end sleeves. Description of the Drawings

[0014] Figure 1 is the overall three-dimensional view of the present utility model;

[0015] Figure 2 is the sectional three-dimensional view of the main body of the end mechanism of the present utility model;

[0016] Figure 3 is the three-dimensional view of a single end mechanism of the present utility model;

[0017] Figure 4 is the three-dimensional view of the middle shaft mechanism of the present utility model.

[0018] In the figure: 1. Intermediate shaft mechanism; 2. End head mechanism; 11. Outer sleeve; 12. Intermediate shaft body; 13. Rotating fitting block; 14. First damping strip; 21. End head sleeve; 22. Shaft fitting groove; 23. Rotating fitting groove; 24. Second damping strip; 25. First groove; 26. Second groove; 27. Threaded fitting sleeve; 28. Threaded connection ring; 29. Fitting hole. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a damping rotating shaft structure includes an intermediate shaft mechanism 1. End head mechanisms 2 are arranged at the upper and lower ends of the intermediate shaft mechanism 1. The intermediate shaft mechanism 1 includes an intermediate shaft body 12. Rotating fitting blocks 13 are fixedly connected to both the upper and lower ends of the intermediate shaft body 12. The end head mechanisms 2 are rotatably installed outside the rotating fitting blocks 13. The end head mechanism 2 includes end head sleeves 21 rotatably installed outside the rotating fitting blocks 13. Shaft fitting grooves 22 are provided at the corresponding one ends of the two end head sleeves 21 facing each other corresponding to the intermediate shaft body 12. Rotating fitting grooves 23 are provided at the corresponding one ends of the two shaft fitting grooves 22 away from each other corresponding to the rotating fitting blocks 13. A plurality of first damping strips 14 are fixedly connected to the circumferential outer wall of the rotating fitting block 13 at equal angles. A plurality of second damping strips 24 are fixedly connected to the circumferential inner wall of the rotating fitting groove 23 at equal angles. The plurality of second damping strips 24 and the plurality of first damping strips 14 on their corresponding sides are arranged in a staggered manner. The overall adopts an upper and lower double-rotating end head structure design. An intermediate shaft body 12 is arranged in the middle thereof. Rotating fitting blocks 13 with damping strips are arranged at the upper and lower ends of the intermediate shaft body 12. And end head sleeves 21 are rotatably installed outside the rotating fitting blocks 13. And fitting damping strips are also arranged in the fitting grooves in the end head sleeves 21. The overall damping rotating shaft structure has damping rotating structures at both the upper and lower ends. When a single rotating structure is damaged, the function of the overall rotating shaft structure is still normal. At the same time, the damping actually provided by the bilateral damping structures is relatively strong. The time for the overall rotating shaft structure to return to a stable state after rotation is relatively short.

[0021] An outer sleeve 11 is fixedly sleeved on the middle part of the circumferential outer wall of the intermediate shaft body 12. The upper and lower ends of the outer sleeve 11 are slidably connected to the corresponding end head sleeves 21 on their corresponding sides. The outer sleeve 11 plays a role in closing the shaft fitting grooves 22 at the corresponding one ends of the two end head sleeves 21, preventing small wastes from entering the shaft fitting grooves 22, and further affecting the smooth rotation of the overall damping rotating shaft structure.

[0022] At the center position of the outer side wall of one end where the two end sleeves 21 are separated from each other, a first groove 25 is provided. Four second grooves 26 are equiangularly arranged around the outer periphery of the outer side wall of one end where the two end sleeves 21 are separated from each other, which plays a role in reducing the weight of the end sleeve 21.

[0023] Four threaded fitting sleeves 27 are fixedly connected to the outer periphery of the outer side wall of one end where the two end sleeves 21 are separated from each other at equal angles. The four threaded fitting sleeves 27 and the four second grooves 26 are arranged in a staggered manner. A threaded connection ring 28 is fixedly connected to the outer side wall of one end where the two end sleeves 21 are separated from each other and located outside the first groove 25. Four fitting holes 29 are equiangularly arranged on the inner circumferential wall of the threaded connection ring 28. Multiple fitting and installation structures are provided at the end sleeves 21 at its upper and lower ends. That is, a plurality of threaded fitting sleeves 27 are arranged on the outer side of one end where the two end sleeves 21 are separated from each other, which can cooperate with screws for the installation of the end sleeve 21. At the same time, a threaded connection ring 28 is provided at one end where the two end sleeves 21 are separated from each other, which can directly perform the threaded installation of the end sleeve 21. At the same time, four fitting holes 29 are equiangularly arranged on the threaded connection ring 28, which can cooperate with bolts for the fixed installation of the end sleeve 21.

[0024] The working principle of the present utility model is as follows: The whole adopts a double-rotating end structure design. A middle shaft body 12 is arranged in the middle. Rotating fitting blocks 13 with damping strips are arranged at the upper and lower ends of the middle shaft body 12. The end sleeve 21 is rotatably installed outside the rotating fitting block 13. The fitting groove in the end sleeve 21 is also provided with a fitting damping strip. The whole damping rotating shaft structure is a damping rotating structure at both the upper and lower ends. When a single rotating structure is damaged, the function of the whole rotating shaft structure is still normal. At the same time, the damping actually provided by the bilateral damping structures is relatively strong, and the time for the whole rotating shaft structure to return to stability after rotation is shorter. In addition, multiple fitting and installation structures are provided at the end sleeves 21 at its upper and lower ends. That is, a plurality of threaded fitting sleeves 27 are arranged on the outer side of one end where the two end sleeves 21 are separated from each other, which can cooperate with screws for the installation of the end sleeve 21. At the same time, a threaded connection ring 28 is provided at one end where the two end sleeves 21 are separated from each other, which can directly perform the threaded installation of the end sleeve 21. At the same time, four fitting holes 29 are equiangularly arranged on the threaded connection ring 28, which can cooperate with bolts for the fixed installation of the end sleeve 21.

[0025] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes an equivalent substitution or change, and should be covered within the protection scope of the present utility model.

Claims

1. A damping shaft structure, comprising an intermediate shaft mechanism (1), wherein the intermediate shaft mechanism (1) is provided with end mechanisms (2) at upper and lower ends; Features: The intermediate shaft mechanism (1) comprises an intermediate shaft body (12), the upper and lower ends of the intermediate shaft body (12) are respectively fixedly connected with a rotationally matched block (13), and the outer side of the rotationally matched block (13) is rotationally mounted with the end head mechanism (2); The end mechanism (2) comprises an end sleeve (21) rotatably mounted on the outside of the rotational matching block (13); the two end sleeves (21) are provided with shaft matching grooves (22) at the ends facing each other and corresponding to the intermediate shaft body (12); and the two shaft matching grooves (22) are provided with rotational matching grooves (23) at the ends away from each other and corresponding to the rotational matching block (13); The annular outer wall of the rotational matching block (13) is fixedly connected with a plurality of first damping strips (14) at equal angles, and the annular inner wall of the rotational matching groove (23) is fixedly connected with a plurality of second damping strips (24) at equal angles, and the plurality of second damping strips (24) and the plurality of first damping strips (14) on the corresponding side are arranged in a staggered manner.

2. A damping shaft structure according to claim 1, characterized in that: A sleeve (11) is fixedly sleeved on the middle portion of the annular outer side wall of the intermediate shaft body (12).

3. A damping shaft structure according to claim 2, characterized in that: The upper and lower ends of the outer sleeve (11) are slidably connected to the end sleeve (21) on the corresponding side thereof.

4. The damping shaft structure according to claim 1, characterized in that: The two end cap sleeves (21) are provided with a first groove (25) at a center position of an outer side wall of one end, and the two end cap sleeves (21) are provided with four second grooves (26) at equal angles at a periphery of the outer side wall of one end.

5. The damping shaft structure according to claim 1, characterized in that: The two end sleeves (21) are fixedly connected with four threaded matching sleeves (27) at equal angles from the outer periphery of the outer wall of one end, and the four threaded matching sleeves (27) and the four second grooves (26) are arranged in a staggered manner.

6. The damping shaft structure according to claim 1, characterized in that: The two end cap sleeves (21) are separated from the outer side wall of one end and are located outside the first groove (25) and are fixedly connected with a threaded connection ring (28).

7. A damping shaft structure according to claim 6, characterized in that: The annular inner wall of the threaded connection ring (28) is provided with four matching holes (29) at equal angles.

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