CN217539318U - Walk line assembly pulley injection molding - Google Patents
Walk line assembly pulley injection molding Download PDFInfo
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- CN217539318U CN217539318U CN202123213816.7U CN202123213816U CN217539318U CN 217539318 U CN217539318 U CN 217539318U CN 202123213816 U CN202123213816 U CN 202123213816U CN 217539318 U CN217539318 U CN 217539318U
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Abstract
The utility model provides a routing pulley block injection molding part, which comprises a pulley and a deep groove ball bearing, wherein end covers with the same shape and structure are arranged on the upper end surface and the lower end surface of the deep groove ball bearing in a mirror symmetry manner; the pulley comprises a hub, the hub is provided with an axial extending shaft hole, the middle part of the inner side wall of the shaft hole is provided with a circular boss extending to the central axis of the shaft hole, the circumferential side wall of the circular boss is provided with a clamping circular ring, and a plurality of first arc-shaped lugs are arranged on the upper end surface and the lower end surface of the circular boss at equal intervals; the lower end face and the lower end face of the hub are provided with wheel discs with the same shape and structure in a mirror symmetry mode; the deep groove ball bearing is arranged in the shaft hole, a clamping groove matched with the clamping ring is formed in the circumferential outer side wall of the deep groove ball bearing, and the deep groove ball bearing is clamped with the hub part through the clamping groove; the two end covers are respectively clamped with the first arc-shaped convex blocks. The utility model discloses a walk line assembly pulley injection molding plays the effect of directional fixed pencil, reduces the friction effect.
Description
Technical Field
The utility model belongs to the technical field of the injection molding technique and specifically relates to a walk line assembly pulley injection molding.
Background
In the existing production process, the wire harnesses are fixed on the rolling groove drum, and the friction force is large, so that the length of a production line is long within the bearing force range of the wire harnesses, particularly under the condition of fine wire harnesses, the problem of friction force is particularly important to solve, secondly, the rolling groove drum is difficult to orient, the routing precision is difficult to control, and the rolling groove drum has larger and larger defects in the face of more and more precise production line requirements.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a walk line assembly pulley injection molding plays fixed pencil, and is directional, the friction reduction effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a routing pulley block injection molding part comprises a pulley and a deep groove ball bearing, wherein end covers with the same shape and structure are arranged on the upper end surface and the lower end surface of the deep groove ball bearing in a mirror symmetry manner; the pulley comprises a hub, the hub is provided with an axial-extending shaft hole, the middle of the inner side wall of the shaft hole is provided with a circular boss extending towards the central axis of the shaft hole, the circumferential side wall of the circular boss is provided with a clamping circular ring, the upper end surface of the clamping circular ring is positioned above the upper end surface of the circular boss, the lower end surface of the clamping circular ring is positioned below the lower end surface of the circular boss, a plurality of first arc-shaped lugs are uniformly arranged on the upper end surface and the lower end surface of the circular boss positioned on the inner side of the clamping circular ring at intervals, the first arc-shaped lugs are arranged at intervals with the clamping circular ring, the upper end surface of each first arc-shaped lug on the upper end surface of the circular boss is higher than the upper end surface of the clamping circular ring, and the lower end surface of each first arc-shaped lug on the lower end surface of the circular boss is lower than the lower end surface of the clamping circular ring; wheel discs with the same shape and structure are arranged on the lower end face and the lower end face of the hub part in a mirror symmetry manner; the deep groove ball bearing is arranged in the shaft hole, a clamping groove matched with the clamping ring is formed in the circumferential outer side wall of the deep groove ball bearing, and the deep groove ball bearing is clamped with the hub through the clamping groove and the clamping ring; the inner side surfaces of the two end covers are respectively clamped with the first arc-shaped convex blocks.
Furthermore, the end cover comprises an outer ring, a middle ring and an inner ring which are integrally formed in a stepped mode, the outer side end of the middle ring is located at the upper end of the outer ring, the inner diameter of the outer ring is smaller than the outer diameter of the middle ring and larger than the inner diameter of the middle ring, the outer diameter of the inner ring is the same as the inner diameter of the middle ring, the upper end face of the inner ring and the upper end face of the middle ring are located in the same plane, the thickness of the inner ring is smaller than that of the middle ring, the thickness difference is 0.3mm, the thickness of the outer ring is larger than that of the middle ring, a plurality of second arc-shaped convex blocks are arranged on the inner side face of the outer ring at equal intervals with the thickness difference being 0.1mm, the size of each second arc-shaped convex block is the same as the size of the interval between two connected first arc-shaped convex blocks, and the second arc-shaped convex blocks are embedded between the adjacent connected first arc-shaped convex blocks; the upper end and the lower end of the inner ring of the deep groove ball bearing are respectively positioned in the annular holes of the inner rings of the upper end cover and the lower end cover and are abutted against the side wall of the inner ring.
Furthermore, the clamping groove is formed in the outer side wall of the outer ring of the deep groove ball bearing, and the outer ring of the deep groove ball bearing is located between the middle rings of the upper end cover and the lower end cover.
Further, the upper end face of the inner ring of the deep groove ball bearing is located above the upper end face of the upper end cover 3, and the lower end face of the inner ring of the deep groove ball bearing is located below the lower end face of the lower end cover.
Further, the cross section of the hub is of a' \9508.
Furthermore, four connecting blocks are arranged in the annular groove at equal intervals, and the connecting blocks are positioned between the outer side wall of the inner circular ring of the wheel disc and the inner side wall of the outer circular ring of the wheel disc.
Furthermore, the upper end face of the inner circular ring of the wheel disc and the upper end face of the middle circular ring are located in the same plane, and the upper end face of the inner circular ring of the wheel disc is higher than the upper end face of the outer circular ring of the disc.
The utility model provides a routing pulley block injection molding part, an upper end cover and a lower end cover are molded firstly, and then the end covers and a bearing are put into a pulley mold to be integrally molded; the deep groove ball bearing and the effect are effectively guaranteed, the deep groove ball bearing and the pulley are organically combined, a traditional rolling groove drum is replaced, the size is smaller, the precision is higher, the friction force is reduced, the production line can be lengthened under the same stress, and the production efficiency is increased.
Drawings
Fig. 1 is a schematic perspective view of a routing pulley block injection molding part according to the present invention;
fig. 2 is a cross-sectional view of the routing pulley block injection molding of the present invention;
fig. 3 is a schematic view of a three-dimensional structure of the pulley according to the present invention;
fig. 4 is a schematic view of the upper perspective three-dimensional structure of the end cap according to the present invention;
fig. 5 is a schematic view of the perspective structure of the lower part of the end cap according to the present invention;
fig. 6 is a schematic structural view of the deep groove ball bearing according to the present invention.
The pulley comprises a 1-pulley, a 2-deep groove ball bearing, a 3-end cover, an 11-hub, a 111-shaft hole, a 112-circular ring boss, a 113-clamping circular ring, a 114-first arc-shaped convex block, a 12-wheel disc, a 21-clamping groove, a 22-inner ring, a 23-outer ring, a 31-outer circular ring, a 32-middle circular ring, a 33-inner circular ring, a 34-second arc-shaped convex block, a 331-ring hole, a 121-wheel disc inner circular ring, a 122-wheel disc outer circular ring, a 123-circular groove and a 124-connecting block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-6, the routing pulley block injection molding piece comprises a pulley 1 and a deep groove ball bearing 2, wherein end covers 3 with the same shape and structure are arranged on the upper end surface and the lower end surface of the deep groove ball bearing 2 in a mirror symmetry manner; the pulley 1 comprises a hub 11, the hub 11 is provided with an axial shaft hole 111 extending axially, a circular ring boss 112 extending towards the central axis of the shaft hole 111 is arranged in the middle of the inner side wall of the shaft hole 11, a clamping circular ring 113 is arranged on the circumferential side wall of the circular ring boss 112, the upper end face of the clamping circular ring 113 is positioned above the upper end face of the circular ring boss 112, the lower end face of the clamping circular ring 113 is positioned below the lower end face of the circular ring boss 112, four first arc-shaped lugs 114 are arranged on the upper end face and the lower end face of the circular ring boss 112 positioned inside the clamping circular ring 113 at equal intervals, the four first arc-shaped lugs 114 and the clamping circular ring 113 are arranged at intervals, the upper end face of the first arc-shaped lug 114 on the upper end face of the circular ring boss 112 is higher than the upper end face of the clamping circular ring 113, and the lower end face of the first arc-shaped lug 114 on the lower end face of the circular ring boss 112 is lower than the lower end face of the clamping circular ring 113; the lower end surface and the lower end surface of the hub 11 are provided with wheel discs 12 with the same shape and structure in a mirror symmetry manner; the deep groove ball bearing 2 is arranged in the shaft hole 111, a clamping groove 21 matched with the clamping ring 113 is arranged on the circumferential outer side wall of the outer ring 23 of the deep groove ball bearing 2, and the deep groove ball bearing 2 is clamped with the hub 11 through the clamping groove 21 and the clamping ring 113; the end cover 3 comprises an outer circular ring 31, a middle circular ring 32 and an inner circular ring 33 which are integrally formed in a stepped mode, the outer side end of the middle circular ring 32 is located at the upper end of the outer circular ring 31, the inner diameter of the outer circular ring 31 is smaller than the outer diameter of the middle circular ring 32 and larger than the inner diameter of the middle circular ring 32, the outer diameter of the inner circular ring 33 is the same as the inner diameter of the middle circular ring 32, the upper end face of the inner circular ring 33 and the upper end face of the middle circular ring 32 are located in the same plane, the thickness of the inner circular ring 33 is smaller than that of the middle circular ring 32, the thickness difference is 0.3mm, the thickness of the outer circular ring 31 is larger than that of the middle circular ring 32, and the thickness difference is 0.1mm; a plurality of second arc-shaped lugs 34 are arranged on the end surface of the inner side of the outer ring 31 at equal intervals, the size of each second arc-shaped lug 34 is the same as the size of the interval between two connected first arc-shaped lugs 114, and each second arc-shaped lug 34 is embedded between every two adjacent first arc-shaped lugs 114; the upper end and the lower end of the inner ring 22 of the deep groove ball bearing 2 are respectively positioned in the ring holes 331 of the inner rings 33 of the upper end cover 3 and the lower end cover 3 and are abutted against the side walls of the inner rings 33; the outer ring 23 of the deep groove ball bearing 2 is located between the middle rings 32 of the upper end cover 3 and the lower end cover 3.
The upper end surface of the inner ring 22 of the deep groove ball bearing 2 is positioned above the upper end surface of the upper end cover 3, and the lower end surface of the inner ring 22 of the deep groove ball bearing 2 is positioned below the lower end surface of the lower end cover 3.
The cross section of the hub 11 is of a '\\ 9508 \' shape, the wheel disc 12 comprises a wheel disc inner circular ring 121 and a wheel disc outer circular ring 122, a circular groove 123 is arranged between the wheel disc outer circular ring 122 and the wheel disc inner circular ring 121, the wheel disc inner circular ring 121 and the upper end face of the vertical part of the hub 11 are integrally formed, the inner side end face of the wheel disc inner circular ring 121 is located above the upper end face of the circular ring boss 112, the outer side end face of the wheel disc inner circular ring 121 and the outer side end face of the vertical part are located on the same vertical plane, the inner diameter of the wheel disc inner circular ring 121 is the same as the inner diameter of the middle circular ring 32, the wheel disc outer circular ring 122 is located on the upper end face of the outer side end of the lateral part of the hub 11, and the outer side end face and the lower end face of the wheel disc outer circular ring 122 of the upper wheel disc 12 and the lower wheel disc 12 and the outer side end face of the lateral part are in smooth transition in an arc surface; four connecting blocks 124 are arranged in the annular groove 123 at equal intervals, and the connecting blocks 124 are positioned between the outer side wall of the wheel disc inner circular ring 121 and the inner side wall of the wheel disc outer circular ring 122; the upper end surface of the wheel disc inner ring 121 and the upper end surface of the middle ring 32 are located in the same plane, and the upper end surface of the wheel disc inner ring 121 is higher than the upper end surface of the disc outer ring 122.
The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention should be regarded as the protection scope of the present invention for those skilled in the art.
Claims (7)
1. A routing pulley block injection molding part is characterized by comprising a pulley and a deep groove ball bearing, wherein end covers with the same shape and structure are arranged on the upper end surface and the lower end surface of the deep groove ball bearing in a mirror symmetry manner; the pulley comprises a hub, the hub is provided with an axially extending shaft hole, the middle of the inner side wall of the shaft hole is provided with a circular boss extending towards the central axis of the shaft hole, the circumferential side wall of the circular boss is provided with a clamping circular ring, the upper end surface of the clamping circular ring is positioned above the upper end surface of the circular boss, the lower end surface of the clamping circular ring is positioned below the lower end surface of the circular boss, a plurality of first arc-shaped lugs are uniformly arranged on the upper end surface and the lower end surface of the circular boss positioned at the inner side of the clamping circular ring at intervals, the upper end surface of each first arc-shaped lug on the upper end surface of the circular boss is higher than the upper end surface of the clamping circular ring, and the lower end surface of each first arc-shaped lug on the lower end surface of the circular boss is lower than the lower end surface of the clamping circular ring; wheel discs with the same shape and structure are arranged on the lower end face and the lower end face of the hub part in a mirror symmetry manner; the deep groove ball bearing is arranged in the shaft hole, a clamping groove matched with the clamping ring is formed in the circumferential outer side wall of the deep groove ball bearing, and the deep groove ball bearing is clamped with the hub through the clamping groove and the clamping ring; the inner side surfaces of the two end covers are respectively clamped with the first arc-shaped convex blocks.
2. The routing pulley block injection molding piece according to claim 1, wherein the end cap comprises an outer ring, a middle ring and an inner ring which are integrally formed in a stepped manner, the outer side end of the middle ring is located at the upper end of the outer ring, the inner diameter of the outer ring is smaller than the outer diameter of the middle ring and larger than the inner diameter of the middle ring, the outer diameter of the inner ring is the same as the inner diameter of the middle ring, the upper end face of the inner ring and the upper end face of the middle ring are located in the same plane, the thickness of the inner ring is smaller than that of the middle ring, the thickness difference is 0.3mm, the thickness of the outer ring is larger than that of the middle ring, a plurality of second arc-shaped bumps are arranged on the inner side face of the outer ring at equal intervals with the thickness difference of 0.1mm, the size of each second arc-shaped bump is the same as the interval size between two adjacent first arc-shaped bumps, and the second arc-shaped bumps are embedded between the adjacent first arc-shaped bumps; the upper end and the lower end of the inner ring of the deep groove ball bearing are respectively positioned in the annular holes of the inner rings of the upper end cover and the lower end cover and are abutted against the side wall of the inner ring.
3. The routing pulley block injection molded part of claim 2, wherein the locking groove is formed on an outer side wall of an outer ring of the deep groove ball bearing, and the outer ring of the deep groove ball bearing is located between middle rings of the upper end cover and the lower end cover.
4. The routing pulley block injection molding part of claim 3, wherein the upper end surface of the inner ring of the deep groove ball bearing is located above the upper end surface of the upper end cover (3), and the lower end surface of the inner ring of the deep groove ball bearing is located below the lower end surface of the lower end cover.
5. The routing pulley block injection molding piece according to claim 4, wherein the cross section of the hub is "\\ 9508 \" type, the wheel disc comprises a wheel disc inner ring and a wheel disc outer ring, a circular groove is arranged between the wheel disc outer ring and the wheel disc inner ring, the wheel disc inner ring and the upper end face of the vertical portion of the hub are integrally formed, the inner side end face of the wheel disc inner ring is located above the upper end face of the circular ring boss, the outer side end face of the wheel disc inner ring and the outer side end face of the vertical portion are located on the same vertical plane, the inner diameter of the wheel disc inner ring is the same as the inner diameter of the middle ring, the upper end face of the hub outer end of the horizontal portion of the wheel disc outer ring is located on the upper end face, and the outer side end face and the lower end face of the wheel disc outer ring of the upper portion and the outer side end face of the horizontal portion of the lower portion are in smooth transition through cambered surfaces.
6. The running pulley block injection molding of claim 5, wherein four connecting blocks are provided at equal intervals in the circular groove, and the connecting blocks are located between the outer side wall of the inner circular ring of the wheel disc and the inner side wall of the outer circular ring of the wheel disc.
7. The running pulley block injection molded part according to claim 6, wherein the upper end surface of the inner ring of the wheel disc is located in the same plane as the upper end surface of the middle ring, and the upper end surface of the inner ring of the wheel disc is higher than the upper end surface of the outer ring of the disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123213816.7U CN217539318U (en) | 2021-12-20 | 2021-12-20 | Walk line assembly pulley injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123213816.7U CN217539318U (en) | 2021-12-20 | 2021-12-20 | Walk line assembly pulley injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539318U true CN217539318U (en) | 2022-10-04 |
Family
ID=83417584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123213816.7U Active CN217539318U (en) | 2021-12-20 | 2021-12-20 | Walk line assembly pulley injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539318U (en) |
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2021
- 2021-12-20 CN CN202123213816.7U patent/CN217539318U/en active Active
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