CN202807018U - Connecting rod blank - Google Patents
Connecting rod blank Download PDFInfo
- Publication number
- CN202807018U CN202807018U CN 201220293363 CN201220293363U CN202807018U CN 202807018 U CN202807018 U CN 202807018U CN 201220293363 CN201220293363 CN 201220293363 CN 201220293363 U CN201220293363 U CN 201220293363U CN 202807018 U CN202807018 U CN 202807018U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rod blank
- cone
- guide
- blank
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a connecting rod blank, and solves the problems of complex processing steps, low production efficiency, low logistics speed and the like in the connecting rod blank in the prior art. The connecting rod blank comprises a connecting rod big head, a rod body and a connecting rod small head, wherein a guide positioning hole is formed in the connecting rod small head and is a cone; the diameter of the cone is larger than that of a drill bit; and the conical surface angle of the cone is 120 degrees. The diameter of the orifice of the guide positioning hole of the connecting rod blank is larger than that of the drill bit, so the connecting rod blank is not subjected to chamber deburring after the inner holes are drilled and can naturally form chamfer after the inner holes are drilled, so that the processing steps are simplified, the production efficiency is improved and the logistics speed is increased.
Description
Technical field
The utility model relates to a kind of motorcycle component, particularly a kind of connecting rod blank of motor bike.
Background technology
In the prior art, the connecting rod blank of motor bike comprises connecting rod big end, shaft, wrist in end usually; Be provided with the guide-localization hole on this wrist in end, this guide-localization hole be shaped as circular cone shape; This guide-localization hole orifice diameter is less than the diameter of drill bit, and this guide-localization hole conical surface angle is 60 °; The processing technology of prior art is: at first, the upper guide-localization hole that arranges of drill bit connecting rod blank microcephaly, the microcephaly bores endoporus at connecting rod blank, then, the burr in aperture, endoporus two ends is outwelled.Obviously, use common motor bike connecting rod blank so that processing technology is comparatively complicated, at every turn after the connecting rod blank microcephaly has bored endoporus, also needing special operation that connecting rod blank is carried out burring processes, so, the connecting rod blank of prior art exists the procedure of processing complexity, and production efficiency is low, and logistics waits problem slowly.
Summary of the invention
The procedure of processing that exists for the connecting rod blank that solves prior art is complicated, and production efficiency is low, and logistics waits problem slowly, the utility model proposes a kind of connecting rod blank.Connecting rod blank of the present utility model comprises connecting rod big end, shaft and wrist in end, is provided with the guide-localization hole on the described wrist in end, and described guide-localization hole is cone, and this cone diameter is greater than bit diameter, and its cone conical surface angle is 120 °.
The beneficial effect of a kind of connecting rod blank of the present utility model is: the guide-localization hole orifice diameter of connecting rod blank of the present utility model is greater than bit diameter, so connecting rod blank of the present utility model carries out the chamfering burring after noting be used in and having bored endoporus again, and can be after having bored endoporus the self-assembling formation chamfering, thereby simplified procedure of processing, improve production efficiency, accelerated logistics speed.
Description of drawings
Fig. 1 is connecting rod blank master TV structure scheme drawing of the prior art;
Fig. 2 is connecting rod blank side-looking cross-sectional view of the prior art;
Fig. 3 is connecting rod blank master TV structure scheme drawing of the present utility model;
Fig. 4 is connecting rod blank side-looking cross-sectional view of the present utility model.
The specific embodiment
Fig. 1 is connecting rod blank master TV structure scheme drawing of the prior art; Fig. 2 is connecting rod blank side-looking cross-sectional view of the prior art; 1 is connecting rod big end, and 2 is shaft, and 3 is wrist in end, and 4 is the guide-localization hole, and D1 is guide-localization hole orifice diameter, and R1 is guide-localization hole conical surface angle.As seen from the figure, in the prior art, the connecting rod blank of motor bike comprises connecting rod big end 1, shaft 2, wrist in end 3 usually; Be provided with guide-localization hole 4 on this wrist in end 3, this guide-localization hole 4 be shaped as circular cone shape; This guide-localization hole orifice diameter D1 is less than bit diameter, and this guide-localization hole conical surface angle R1 is 60 °; The processing technology of prior art is: at first, the guide-localization hole 4 that arranges on the drill bit connecting rod blank microcephaly 3 gets out endoporus connecting rod blank microcephaly 3, then, the burr in aperture, endoporus two ends is outwelled.Obviously, use common motor bike connecting rod blank so that processing technology is comparatively complicated, at every turn after connecting rod blank microcephaly 3 has bored endoporus, also needing special operation that connecting rod blank is carried out burring processes, so, the connecting rod blank of prior art exists the procedure of processing complexity, and production efficiency is low, and logistics waits problem slowly.
Fig. 3 is connecting rod blank master TV structure scheme drawing of the present utility model; Fig. 4 is connecting rod blank side-looking cross-sectional view of the present utility model.1 is connecting rod big end, and 2 is shaft, and 3 is wrist in end, and 4 is the guide-localization hole, and D2 is the cone diameter, and R2 is cone conical surface angle; As seen from the figure, connecting rod blank of the present utility model comprises connecting rod big end 1, shaft 2 and wrist in end 3, is provided with guide-localization hole 4 on the described wrist in end 3, and described guide-localization hole 4 is cone, this cone diameter D2 is greater than bit diameter, and its cone conical surface angle R2 is 120 °.Connecting rod blank processing technology of the present utility model is: the guide-localization hole 4 that arranges on the drill bit connecting rod blank microcephaly 3 directly gets out endoporus on connecting rod blank microcephaly 3.Obviously, carry out again the chamfering burring after using connecting rod blank of the present utility model to not be used in to have bored endoporus, thereby simplified procedure of processing, improved production efficiency, accelerated logistics speed.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (1)
1. connecting rod blank, comprise connecting rod big end, shaft and wrist in end, be provided with the guide-localization hole on the described wrist in end, it is characterized in that: described guide-localization hole is cone, this cone diameter is greater than bit diameter, and its cone conical surface angle is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293363 CN202807018U (en) | 2012-06-21 | 2012-06-21 | Connecting rod blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293363 CN202807018U (en) | 2012-06-21 | 2012-06-21 | Connecting rod blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202807018U true CN202807018U (en) | 2013-03-20 |
Family
ID=47865945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220293363 Expired - Fee Related CN202807018U (en) | 2012-06-21 | 2012-06-21 | Connecting rod blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202807018U (en) |
-
2012
- 2012-06-21 CN CN 201220293363 patent/CN202807018U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160621 |