CN218031314U - Duplex gear without post-processing - Google Patents
Duplex gear without post-processing Download PDFInfo
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- CN218031314U CN218031314U CN202222562756.8U CN202222562756U CN218031314U CN 218031314 U CN218031314 U CN 218031314U CN 202222562756 U CN202222562756 U CN 202222562756U CN 218031314 U CN218031314 U CN 218031314U
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- gear
- wheel
- cogwheel
- embedded
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Abstract
The utility model discloses a duplicate gear without post-processing, which comprises a connecting wheel, an embedded gear and an external embedded gear, wherein the embedded gear is arranged at one end of the connecting wheel, a plurality of inner grooves and outer convex blocks are uniformly distributed on the outer side wall of the connecting wheel, the inner grooves and the outer convex blocks are arranged on the surface of the connecting wheel in a staggered way, and the external embedded gear is cast and wrapped outside the connecting wheel; this duplicate gear that does not need postprocessing, through putting into the fifth wheel and the internal cogwheel and moulding plastics, the injection molding machine forms external cogwheel in the connecting wheel department of moulding plastics, this duplicate gear can reduce and even avoid producing assembly error between internal cogwheel and the external cogwheel, effectively reduce because the produced vibrations in clearance between internal cogwheel and the external cogwheel, and this duplicate gear need not postprocessing and the installation is used for fixed internal cogwheel and external cogwheel's structure, the precision is improved, reduce the follow-up possibility that needs carry out clamping processing to the gear and damage the gear, the production cost is effectively reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a gear field specifically is a duplicate gear who does not need postprocessing.
Background
The gear is a common transmission structure and has various forms, and the duplicate gear is one of the common transmission structures; for the double gears made of two materials, the existing production modes are two common, one is that the gears made of two materials are respectively processed and then assembled into the double gears in a riveting, bonding or other connecting piece fastening mode, and the mode has obvious defects in the aspects of production efficiency and economy for achieving the same precision and strength; the other is that the gear made of one material is molded by a mold and then is used as an embedded gear to be secondarily molded to produce the duplicate gear made of two materials, the mode has obvious advantages in the aspects of production efficiency and economy of achieving the same precision and strength, the existing common embedded gear is generally pressed by powder metallurgy, so the embedded cylinder of the embedded gear is generally designed into a through concave-convex staggered tooth form in structure, the concave-convex staggered tooth form can bear the rotation torque of a load after secondary molding filling, but cannot bear the axial force of the load, therefore, the common method is to mechanically process the embedded gear to form a circle of groove at the root of the concave-convex staggered tooth form of the embedded cylinder, and the circle of groove can bear the axial force of the load after secondary molding filling. However, in the method, because the embedded gear is additionally provided with one post-processing procedure, the work of secondary clamping and transferring is increased, the production efficiency and the delivery period are influenced, and the damage of the precision part through secondary clamping and transferring is possibly generated.
SUMMERY OF THE UTILITY MODEL
To the deficiency of the prior art, the utility model provides a duplicate gear that does not need post-processing.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a duplicate gear that does not need post-processing, includes fifth wheel, internal cogwheel and outer cog, internal cogwheel sets up the one end at the fifth wheel, and the equipartition has a plurality of inner groovings and evagination piece on the lateral wall of fifth wheel, inner groovings and evagination piece set up the surface at the fifth wheel with crisscross, outer cog pouring parcel is in the outside of fifth wheel.
Further, the connecting wheel and the embedded gear are integrally formed.
Furthermore, the surface of the connecting wheel is provided with at least two rows of inner grooves and outer convex blocks, and the inner grooves and the outer convex blocks of two adjacent rows are arranged in a staggered manner.
Further, fifth wheel, internal cogwheel and external cogwheel set up coaxially.
Compared with the prior art, the utility model provides a duplicate gear who does not need postprocessing possesses following beneficial effect:
this duplicate gear that does not need postprocessing, through finishing with connecting wheel and embedded gear integrated into one piece production earlier, put into moulding plastics connecting wheel and embedded gear again, the injection molding machine forms the external embedded gear in the connecting wheel department of moulding plastics, and then accomplish this duplicate gear production and processing, this duplicate gear can reduce and even avoid producing assembly error between embedded gear and the external embedded gear, effectively reduce between embedded gear and the external embedded gear because the produced vibrations in clearance, guarantee this duplicate gear's even running, and this duplicate gear need not postprocessing and install the structure that is used for fixed embedded gear and external embedded gear, improve the precision, reduce the follow-up possibility that needs to carry out clamping processing damage gear to the gear, reduce manufacturing cost effectively, and the production efficiency is improved.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a structural diagram of the fifth wheel of the present invention.
In the figure: 1. the gear comprises a connecting wheel, 2 an inner groove, 3 an outer lug, 4 an embedded gear and 5 an outer embedded gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1 to 3, the present invention provides the following technical solutions:
the duplicate gear without post-processing comprises a connecting wheel 1, an embedded gear 4 and an external embedded gear 5, wherein the connecting wheel 1 and the embedded gear 4 are integrally produced and molded, the connecting wheel 1 and the embedded gear 4 are made of metal or plastic, a plurality of inner grooves 2 and outer convex blocks 3 are uniformly distributed on the surface of the connecting wheel 1 in a staggered manner, the inner grooves 2 and the outer convex blocks 3 are provided with a plurality of rows, the inner grooves 2 and the outer convex blocks 3 are arranged in the same row in a staggered manner, and the inner grooves 2 and the outer convex blocks 3 in two adjacent rows are also arranged in a staggered manner, as shown in fig. 3 specifically; the external cog wheel 5 is arranged outside the connecting wheel 1, the connecting wheel 1 is wrapped by the external cog wheel 5, and the external cog wheel 5 is poured on the connecting wheel 1 through an injection molding machine.
The connecting wheel 1, the internal cogwheel 4 and the external cogwheel 5 are coaxially arranged.
The specific implementation process is as follows:
when this duplicate gear that does not need the post-processing is produced, at first fifth wheel 1 and embedded gear 4 are made in production, fifth wheel 1 and embedded gear 4 integrated into one piece, inner groovy 2 and 3 also all-in-one machine tooling of evagination piece are on fifth wheel 1 simultaneously, finish the back with fifth wheel 1 and embedded gear 4 production, place it into the mould of injection molding machine in, through injection molding machine with pouring production external embedded gear 5, make external embedded gear 5 fill to inner groovy 2 in, evagination piece 3 inserts to external embedded gear 5 in, external embedded gear 5 lives the connecting block parcel, treat external embedded gear 5 cooling shaping, can accomplish the production of this duplicate gear.
This duplicate gear that does not need postprocessing, through finishing with fifth wheel 1 and embedded gear 4 integrated into one piece production earlier, put into moulding plastics fifth wheel 1 and embedded gear 4 again, the injection molding machine forms embedded gear 5 outside at fifth wheel 1 department of moulding plastics, and then accomplish this duplicate gear production and processing, this duplicate gear can reduce and even avoid producing assembly error between embedded gear 4 and the embedded gear 5, effectively reduce between embedded gear 4 and the embedded gear 5 because the produced vibrations in clearance, guarantee this duplicate gear's even running, and this duplicate gear need not postprocessing and install the structure that is used for fixed embedded gear 4 and embedded gear 5, improve the precision, reduce the follow-up possibility that need carry out clamping processing to the gear and damage the gear, effectively reduce manufacturing cost, improve production efficiency.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a duplicate gear that does not need post-processing which characterized in that: including fifth wheel, internal cogwheel and outer cog wheel, internal cogwheel sets up the one end at the fifth wheel, and the equipartition has a plurality of inner groovies and evagination piece on the lateral wall of fifth wheel, inner groovies and evagination piece set up the surface at the fifth wheel with crisscross, outer cog wheel pouring parcel is in the outside of fifth wheel.
2. The double-pinion gear without post-machining according to claim 1, characterized in that: the connecting wheel and the embedded gear are integrally formed.
3. The double-pinion gear without post-machining according to claim 1, characterized in that: the surface of the connecting wheel is provided with at least two rows of inner grooves and outer convex blocks, and the inner grooves and the outer convex blocks of the two adjacent rows are arranged in a staggered mode.
4. The double-pinion gear without post-machining as claimed in claim 1, wherein: the connecting wheel, the embedded gear and the external embedded gear are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222562756.8U CN218031314U (en) | 2022-09-27 | 2022-09-27 | Duplex gear without post-processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222562756.8U CN218031314U (en) | 2022-09-27 | 2022-09-27 | Duplex gear without post-processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218031314U true CN218031314U (en) | 2022-12-13 |
Family
ID=84356811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222562756.8U Active CN218031314U (en) | 2022-09-27 | 2022-09-27 | Duplex gear without post-processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218031314U (en) |
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2022
- 2022-09-27 CN CN202222562756.8U patent/CN218031314U/en active Active
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