CN220791839U - Shock attenuation formula rotary flange subassembly and electric drum - Google Patents
Shock attenuation formula rotary flange subassembly and electric drum Download PDFInfo
- Publication number
- CN220791839U CN220791839U CN202322800967.5U CN202322800967U CN220791839U CN 220791839 U CN220791839 U CN 220791839U CN 202322800967 U CN202322800967 U CN 202322800967U CN 220791839 U CN220791839 U CN 220791839U
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- flange
- concave
- rotary flange
- assembly according
- shell
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- 230000035939 shock Effects 0.000 title claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Pulleys (AREA)
Abstract
The utility model relates to a damping rotary flange assembly, which comprises an inner connecting assembly and a flange shell, wherein the inner connecting assembly is arranged in the flange shell and is coaxially arranged with the flange shell, and is used for being connected with an output end of a driving mechanism; a filling cavity is formed between the outer side face of the inner connecting assembly and the inner side face of the flange shell, the filling cavity is continuously bent in a concave-convex shape along the circumferential direction, the filling cavity is continuously bent in a concave-convex shape along the axial direction, and a shock absorption layer is formed in the filling cavity through injection molding. And to motorized pulley comprising said rotary flange assembly. The utility model solves the problem that in the prior art, the flange body is easy to vibrate in the rotating process due to relative rotation along the circumferential direction between the parts of the rotating flange assembly.
Description
Technical Field
The utility model relates to the technical field of motorized pulley, in particular to a damping rotary flange assembly and a motorized pulley.
Background
The rotary flange component in the electric roller is used for transmitting the rotary torque output by the speed reducing mechanism to the roller body, so that the power transmission effect is realized. The rotary flange assembly generally comprises an inner connecting piece connected with the output end of the speed reducing mechanism and a flange body connected with the roller body, and the inner connecting piece and the flange body are generally sleeved along the axial direction, and as the inner connecting piece and the flange body are in direct contact with each other and the contact surface is a cylindrical surface, relative rotation of the inner connecting piece and the flange body along the circumferential direction is easy to occur at the contact surface position, and vibration is easy to occur in the rotary flange in the rotary process.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a damping rotary flange assembly and an electric roller, and aims to solve the problem that in the prior art, the flange body is easy to vibrate in the rotating process due to relative rotation along the circumferential direction easily occurring among components of the rotary flange assembly.
The technical scheme adopted by the utility model is as follows:
The utility model provides a damping rotary flange assembly, which comprises an inner connecting assembly and a flange shell, wherein the inner connecting assembly is arranged in the flange shell and is coaxially arranged with the flange shell, and is used for being connected with an output end of a driving mechanism; a filling cavity is formed between the outer side face of the inner connecting assembly and the inner side face of the flange shell, the filling cavity is continuously bent in a concave-convex shape along the circumferential direction, the filling cavity is continuously bent in a concave-convex shape along the axial direction, and a shock absorption layer is formed in the filling cavity through injection molding.
The further technical scheme is as follows:
a plurality of outer convex parts are uniformly arranged on the inner side surface of the flange shell along the circumference, an inner concave part is formed between two adjacent outer convex parts, and an axial positioning plate extending along the radial direction is arranged in each inner concave part;
The structure of the inner connecting assembly comprises two polygonal frameworks, and the two polygonal frameworks are symmetrically arranged by taking the cross section of the axial positioning plate as the center.
A connecting cavity is arranged in the middle of each polygonal framework, and an outer ring of the connecting cavity is axially provided with an outer positioning section and an inner positioning section;
The structure of the outer positioning section comprises a plurality of convex teeth which are uniformly distributed along the circumference, and an inward concave cambered surface is formed between two adjacent convex teeth; the convex teeth and the concave parts are corresponding to each other in the radial direction, the concave cambered surfaces and the outer convex parts are corresponding to each other in the radial direction, and the filling cavities are formed between the convex teeth and the concave parts and between the concave cambered surfaces and the outer convex parts;
The inner positioning sections of the two polygonal skeletons are butted.
The outer diameter of the inner positioning section is smaller than the inner diameter of the axial positioning plate, and the outer diameter of the outer positioning section is larger than the inner diameter of the axial positioning plate.
And a key for transmission connection is arranged in the connecting cavity.
And smooth transition is realized between the adjacent concave parts and the adjacent outer parts.
And the outer convex part is provided with an axially extending mounting hole.
The shock-absorbing layer is made of TPU material.
The utility model also provides an electric roller, which comprises the damping rotary flange assembly.
The beneficial effects of the utility model are as follows:
According to the utility model, the shock absorption layer is formed between the inner connecting component and the flange shell through injection molding, so that the inner connecting component is prevented from being in direct contact with the flange shell, and the flange shell can be effectively shock-absorbed. Meanwhile, the filling cavity (namely the shock absorption layer) formed between the inner connecting assembly and the flange shell is continuously bent in a concave-convex shape along the axial direction and the circumferential direction, so that the inner connecting assembly and the flange shell can be effectively prevented from rotating relatively along the circumferential direction, and the vibration of the flange shell caused by the circumferential rotation is further prevented.
The inner connecting assembly comprises two polygonal frameworks, and realizes axial positioning through butt joint of the inner positioning sections, so that injection molding of the shock absorption layer is possible.
Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.
Drawings
Fig. 1 is a schematic perspective view of a vibration-damping rotary flange assembly according to an embodiment of the present utility model.
FIG. 2 is a schematic diagram of an assembly structure of a flange housing and an inner connection assembly according to an embodiment of the present utility model.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a cross-sectional view of section A-A of fig. 3.
Fig. 5 is an exploded view of the assembled structure of fig. 2.
Fig. 6 is a top view of fig. 1.
Fig. 7 is a cross-sectional view of section B-B of fig. 6.
In the figure: 1. a flange housing; 2. a shock absorbing layer; 3. a polygonal skeleton; 4. filling the cavity; 5. a groove portion; 11. an outer protruding portion; 12. an inner concave portion; 13. an axial positioning plate; 14. a mounting hole; 31. convex teeth; 32. a concave cambered surface; 33. a connecting cavity; 34. an inner positioning section; 35. a key.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
Example 1
As shown in fig. 1, 2, 3 and 4, the vibration-damping rotary flange assembly of the present embodiment includes an inner connecting assembly and a flange housing 1, the inner connecting assembly is disposed in the flange housing 1 and coaxially disposed therewith for connection with an output end of a driving mechanism; a filling cavity 4 is formed between the outer side surface of the inner connecting component and the inner side surface of the flange shell 1, the filling cavity 4 is continuously bent in a concave-convex shape along the circumferential direction, the filling cavity 4 is continuously bent in a concave-convex shape along the axial direction, and a shock absorption layer 2 is formed in the filling cavity 4 through injection molding.
Referring to fig. 3 and 5, the inner side surface of the flange shell 1 is uniformly provided with a plurality of outer convex parts 11 along the circumference, an inner concave part 12 is formed between two adjacent outer convex parts 11, and an axial positioning plate 13 extending along the radial direction is arranged in each inner concave part 12;
preferably the axial direction positions of the respective axial positioning plates 13 are aligned;
Referring to fig. 4, the structure of the inner connection assembly includes two butt-disposed polygonal skeletons 3, and the two polygonal skeletons 3 are symmetrically disposed centering on a cross section where the axial positioning plate 13 is located.
Referring to fig. 5, a connecting cavity 33 is arranged in the middle of each polygonal skeleton 3, and an outer ring of the connecting cavity 33 is axially formed with an outer positioning section and an inner positioning section 34;
The structure of the outer positioning section comprises a plurality of convex teeth 31 which are uniformly distributed along the circumference, and an inner concave cambered surface 32 is formed between two adjacent convex teeth 31;
referring to fig. 3, the positions of the convex teeth 31 and the concave parts 12 are corresponding to each other in the radial direction, the positions of the concave cambered surfaces 32 and the outer convex parts 11 are corresponding to each other in the radial direction, and filling cavities 4 are formed between the convex teeth 31 and the concave parts 12 and between the concave cambered surfaces 32 and the outer convex parts 11;
Referring to fig. 4 and 7, the inner positioning segments 34 of the two polygonal skeletons 3 are butted, specifically, by the end faces of the inner positioning segments 34.
Specifically, the outer diameter of the inner positioning section 34 is smaller than the inner diameter of the axial positioning plate 13, and the outer diameter of the outer positioning section is larger than the inner diameter of the axial positioning plate 13. Between the teeth 31 of the two polygonal skeletons 3, a groove 5 is formed, which can be used to extend the axial positioning plate 13 into it, so that the filling chamber 4 is continuously bent in an uneven manner in the axial direction.
A key 35 for the drive connection is provided in the connection chamber 33.
Specifically, referring to fig. 3 and 6, the adjacent concave portion 12 and the outer convex portion 11 smoothly transition to form a hexagonal petal shape, and the polygonal skeleton 3 has a hexagonal skeleton, that is, six convex teeth 31, so that the filling cavity 4 is continuously bent in a concave-convex shape along the circumferential direction.
In the vibration-damping rotary flange assembly of this embodiment, the key 35 of the connecting cavity 33 of the inner connecting assembly is connected with the rotary driving end, so as to drive the whole rotary flange assembly to rotate, and the flange housing 1 can be used for connecting with a driven member to realize power transmission. Because the filling cavity 4 is continuously bent in a concave-convex shape along the circumferential direction, the filling cavity 4 is also continuously bent in a concave-convex shape along the axial direction, and the shock absorption layer 2 is formed in the filling cavity 4 through injection molding and filling, the flange shell 1 and the inner connecting component can be effectively prevented from rotating relatively along the circumferential direction in the rotating process of the rotating flange component. Meanwhile, the damping layer 2 isolates the flange shell 1 from the inner connecting component, so that vibration of the flange shell 1 in the rotating process caused by hard contact between the flange shell 1 and the inner connecting component is avoided.
In the vibration-damping rotary flange assembly of this embodiment, during manufacturing, the flange housing 1 and the inner connecting assembly can be respectively molded by casting, then the flange housing and the inner connecting assembly are coaxially assembled to be in the state shown in fig. 2, and then the vibration-damping layer 2 is formed by injection molding, so as to finally obtain the rotary flange assembly.
The shock-absorbing layer 2 is preferably made of TPU, and further can be made of nitrile rubber, PU and the like.
As shown in fig. 6 and 7, the outer flange 11 is provided with an axially extending mounting hole 14. By providing a spring member within the mounting hole 14, axial play of the rotary flange assembly is prevented.
Example 2
The present embodiment provides a motorized pulley comprising the shock absorbing rotary flange assembly of embodiment 1. The connecting cavity of the inner connecting component of the rotary flange component is used for being connected with the output end of the speed reducing mechanism of the electric roller, and the flange shell 1 is used for being connected with the driven roller body to realize power transmission.
Those of ordinary skill in the art will appreciate that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The damping rotary flange assembly is characterized by comprising an inner connecting assembly and a flange shell (1), wherein the inner connecting assembly is arranged in the flange shell (1) and is coaxially arranged with the flange shell and is used for being connected with an output end of a driving mechanism; a filling cavity (4) is formed between the outer side face of the inner connecting assembly and the inner side face of the flange shell (1), the filling cavity (4) is continuously bent in a concave-convex shape along the circumferential direction, the filling cavity (4) is continuously bent in a concave-convex shape along the axial direction, and a shock absorption layer (2) is formed in the filling cavity (4) through injection molding.
2. The damping rotary flange assembly according to claim 1, wherein a plurality of outer protrusions (11) are uniformly arranged on the inner side surface of the flange shell (1) along the circumference, an inner concave portion (12) is formed between two adjacent outer protrusions (11), and an axial positioning plate (13) extending along the radial direction is arranged in each inner concave portion (12);
The structure of the inner connecting assembly comprises two polygonal frameworks (3), and the two polygonal frameworks (3) are symmetrically arranged by taking the cross section of the axial positioning plate (13) as the center.
3. The damping rotary flange assembly according to claim 2, characterized in that a connecting cavity (33) is arranged in the middle of each polygonal skeleton (3), and an outer ring of the connecting cavity (33) is axially formed with an outer positioning section and an inner positioning section (34);
The structure of the outer positioning section comprises a plurality of convex teeth (31) which are uniformly distributed along the circumference, and an inward concave cambered surface (32) is formed between two adjacent convex teeth (31); the convex teeth (31) and the concave parts (12) are corresponding to each other in the radial direction and the outer direction, the concave cambered surfaces (32) and the outer parts (11) are corresponding to each other in the radial direction and the outer directions, and the filling cavities (4) are formed between the convex teeth (31) and the concave parts (12) and between the concave cambered surfaces (32) and the outer parts (11);
The inner positioning sections (34) of the two polygonal skeletons (3) are in butt joint.
4. A vibration-damped rotary flange assembly according to claim 3, wherein the inner positioning section (34) has an outer diameter smaller than the inner diameter of the axial positioning plate (13) and the outer positioning section has an outer diameter larger than the inner diameter of the axial positioning plate (13).
5. A vibration-damped rotary flange assembly according to claim 3, wherein said connecting chamber (33) has a key (35) for driving connection therein.
6. Damping rotary flange assembly according to claim 2, characterized in that the adjacent inner recess (12), outer projection (11) are rounded.
7. Damping rotary flange assembly according to claim 2, characterized in that the outer flange portion (11) is provided with axially extending mounting holes (14).
8. Damping rotary flange assembly according to claim 1, characterized in that the damping layer (2) is of TPU material.
9. A motorized pulley comprising a shock absorbing rotary flange assembly according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800967.5U CN220791839U (en) | 2023-10-19 | 2023-10-19 | Shock attenuation formula rotary flange subassembly and electric drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800967.5U CN220791839U (en) | 2023-10-19 | 2023-10-19 | Shock attenuation formula rotary flange subassembly and electric drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791839U true CN220791839U (en) | 2024-04-16 |
Family
ID=90665081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322800967.5U Active CN220791839U (en) | 2023-10-19 | 2023-10-19 | Shock attenuation formula rotary flange subassembly and electric drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791839U (en) |
-
2023
- 2023-10-19 CN CN202322800967.5U patent/CN220791839U/en active Active
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