CN203253871U - Sun gear forging blank - Google Patents
Sun gear forging blank Download PDFInfo
- Publication number
- CN203253871U CN203253871U CN 201320220494 CN201320220494U CN203253871U CN 203253871 U CN203253871 U CN 203253871U CN 201320220494 CN201320220494 CN 201320220494 CN 201320220494 U CN201320220494 U CN 201320220494U CN 203253871 U CN203253871 U CN 203253871U
- Authority
- CN
- China
- Prior art keywords
- sun gear
- cylindrical body
- blank
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Forging (AREA)
- Gears, Cams (AREA)
Abstract
The utility model discloses a sun gear forging blank comprising a cylindrical body. A round through hole is formed between the two end faces of the cylindrical body. By means of the through hole structure, raw materials are saved and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of sun gear and forges blank.
Background technology
Automobile gear of the prior art adopts the mode of die forging to form blank more, the mode of again blank being cut is made moulding, the reasonable structure that forges blank is directly connected to raw-material consumption and follow-up mach surplus and efficient, by playing the purpose that saves material, reduces machining allowance and raise the efficiency to forging the design of blank structural optimization.It is the reeded cylinder of both ends of the surface tool that existing sun gear forges blank, needs in the following process process and will be drilled to through hole between two grooves, and chipping allowance is more, and it is more to cause its raw material to consume, and mach production efficiency is not high.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the sun gear that the utility model provides a kind of and saves material, production efficiency is high forges blank
Technical scheme: for solving the problems of the technologies described above, the sun gear that the utility model provides forges blank and comprises cylindrical body, has the circular hole of perforation between two end faces of described cylindrical body.
As preferably, in order to reduce the chipping allowance of inside and outside wall, described circular hole is coaxial with cylindrical body.
As preferably, in order to reduce the chipping allowance of end face, the sidewall of described cylindrical body and an end face are step-like.
Beneficial effect: the utility model increases the structure that connects circular hole by the cylindrical body that forges blank at sun gear, has saved raw-material use amount, and since during machined chipping allowance also correspondingly reduce, improved production efficiency.
Description of drawings
Fig. 1 is the structural representation that existing sun gear forges blank.
Fig. 2 is the structural representation of the utility model embodiment one.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The structure of existing sun gear forging blank is the cylinder 1 that both ends of the surface have groove 1-2,1-3 as shown in Figure 1.
The sun gear that the utility model provides forges blank as shown in Figure 2, comprise cylindrical body 2, have the circular hole 2-1 of perforation between two end face 2-3 of this cylindrical body 2 and the 2-4, this circular hole 2-1 is coaxial with cylindrical body 2, and the sidewall 2-2 of cylindrical body 2 and an end face 2-4 are step-like.
By contrast as can be known, the sun gear of present embodiment forges blank by connecting the structure of circular hole and step, has saved raw-material use amount, and since during machined chipping allowance also correspondingly reduce, improved production efficiency.
The above only is preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a sun gear forges blank, comprises cylindrical body, it is characterized in that: the circular hole that has perforation between two end faces of described cylindrical body.
2. sun gear according to claim 1 forges blank, and it is characterized in that: described circular hole is coaxial with cylindrical body.
3. sun gear according to claim 1 and 2 forges blank, and it is characterized in that: the sidewall of described cylindrical body and an end face are step-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220494 CN203253871U (en) | 2013-04-27 | 2013-04-27 | Sun gear forging blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220494 CN203253871U (en) | 2013-04-27 | 2013-04-27 | Sun gear forging blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253871U true CN203253871U (en) | 2013-10-30 |
Family
ID=49466480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320220494 Expired - Fee Related CN203253871U (en) | 2013-04-27 | 2013-04-27 | Sun gear forging blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203253871U (en) |
-
2013
- 2013-04-27 CN CN 201320220494 patent/CN203253871U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |