CN208919013U - Diesel engine connecting bar check bolt - Google Patents
Diesel engine connecting bar check bolt Download PDFInfo
- Publication number
- CN208919013U CN208919013U CN201821705540.XU CN201821705540U CN208919013U CN 208919013 U CN208919013 U CN 208919013U CN 201821705540 U CN201821705540 U CN 201821705540U CN 208919013 U CN208919013 U CN 208919013U
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- CN
- China
- Prior art keywords
- inner hole
- hole
- diesel engine
- bolt
- connecting bar
- 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.)
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Connection Of Plates (AREA)
Abstract
The utility model is mainly used in diesel engine part processing technique field, in particular to a kind of diesel engine connecting bar check bolt, it is polished rod in the middle part of bolt body, polished rod both ends are respectively thread segment including bolt body, wherein anti-porosity is arranged in a thread segment from outside to inside, anti- porosity is set as variable diameter hole, and variable diameter hole includes two sections, respectively the first inner hole and the second inner hole, first inner hole and the second inner hole are cylindrical hole, the diameter of the diameter of the first inner hole less than the second inner hole.The bolt arrangement advantages of simple is easily worked realization, and at low cost, anti-loosing effect is good, and has completed installation test run, and good anti-loosing effect has been reached on the basis of save the cost.Check washer is not needed, anti-loosing effect is good.Diesel engine is suitable in special circumstances to the design requirement of bolt.
Description
Technical field
The utility model relates to a kind of diesel engine connecting bar check bolts, are mainly used in diesel engine part processing technology neck
Domain.
Background technique
The main function of connecting-rod bolts is that connecting rod FE Tiler and gonnecting rod body link together.But because link assembly is in bavin
Belong to moving component inside oil machine, and bear very big shock loading, connecting-rod bolts are easy to loosen；In order to avoid the pine of bolt
Dynamic, common measure has smearing fastening glue, installs check washer.The effect of fastening glue is not more obvious but easy to assemble, and
When reuse, need to remove solidification glue-line, time-consuming and laborious, cost is also high.Check washer because of space constraints can not often
It uses, if customized special requirement is at high price；Even with the check washer of standard specification, price is also high, and dismantles
Afterwards, connecting rod FE Tiler and bolt are all had damage, can not be reused.
Utility model content
Technical problem to be solved by the utility model is: providing one kind not only may be reused, but also at low cost, it is easy
The diesel engine connecting bar check bolt of processing and fabricating.
Diesel engine connecting bar check bolt described in the utility model, including bolt body, bolt body middle part are polished rod, light
Bar both ends are respectively thread segment, wherein anti-porosity is arranged in a thread segment from outside to inside, anti-porosity is set as variable diameter hole, variable diameter hole packet
Include two sections, respectively the first inner hole and the second inner hole, the first inner hole and the second inner hole are cylindrical hole, the diameter of the first inner hole
Less than the diameter of the second inner hole.
The junction of first inner hole and the second inner hole passes through round-corner transition.
It is processed into 10 ° of cone angles in the thread segment end with inner hole.
The anti-porosity is counterbore, and semicircle is processed on the top of the first inner hole.
In order to realize the locking of bolt, this bolt by drilling on shaft at screw thread, tighten and deform at rear thread by increase
Amount increases the fitting area of bolt thread and hole screw thread, increases thread friction power, realizes locking purpose.In order to increase at screw thread
Effective deformation amount is obtained, bolt end is processed into 10 ° of cone angles.In order to increase the effective deformation amount at screw thread for aperture design at two
Kind size.In order to reduce the problem of stress concentration in hole, increases bolt strength, semicircle, the variable diameter in hole are processed into the top in hole
Position round-corner transition.
The beneficial effects of the utility model are:
It is simple and reasonable, it is easily worked realization, at low cost, anti-loosing effect is good, and has completed installation test run, is saving
Good anti-loosing effect is about reached on the basis of cost.Check washer is not needed, anti-loosing effect is good.It is suitable for diesel engine spy
To the design requirement of bolt in different situation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, cone angle；2, bolt body；3, the first inner hole；4, the second inner hole.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, diesel engine connecting bar check bolt described in the utility model, including bolt body 2, bolt body 2
Middle part is polished rod, and polished rod both ends are respectively thread segment, wherein anti-porosity is arranged in a thread segment from outside to inside, anti-porosity is set as becoming
Diameter hole, variable diameter hole include two sections, and respectively the first inner hole 3 and the second inner hole 4, the first inner hole 3 and the second inner hole 4 are cylinder
Hole, the diameter of the diameter of the first inner hole 3 less than the second inner hole 4.The junction of first inner hole 3 and the second inner hole 4 passes through fillet mistake
It crosses.It is processed into 10 ° of cone angles 1 in thread segment end with inner hole.Anti- porosity is counterbore, and semicircle is processed on the top of the first inner hole 3
Shape.
In order to realize the locking of bolt, this bolt by drilling on shaft at screw thread, tighten and deform at rear thread by increase
Amount increases the fitting area of bolt thread and hole screw thread, increases thread friction power, realizes locking purpose.In order to increase at screw thread
Effective deformation amount is obtained, bolt end is processed into 10 ° of cone angles 1.In order to increase the effective deformation amount at screw thread by aperture design at
Two kinds of sizes.In order to reduce the problem of stress concentration in hole, increases bolt strength, semicircle, the change in hole are processed into the top in hole
Path position round-corner transition.In use, this bolt is linked together connecting rod FE Tiler and gonnecting rod body, nut is tightened.
Claims (4)
1. a kind of diesel engine connecting bar check bolt, it is characterised in that: be light in the middle part of bolt body (2) including bolt body (2)
Bar, polished rod both ends are respectively thread segment, wherein anti-porosity is arranged in a thread segment from outside to inside, anti-porosity is set as variable diameter hole, are become
Diameter hole includes two sections, and respectively the first inner hole (3) and the second inner hole (4), the first inner hole (3) and the second inner hole (4) are cylinder
Shape hole, the diameter of the diameter of the first inner hole (3) less than the second inner hole (4).
2. diesel engine connecting bar check bolt according to claim 1, it is characterised in that: the first inner hole (3) and the second inner hole
(4) junction passes through round-corner transition.
3. diesel engine connecting bar check bolt according to claim 1, it is characterised in that: the thread segment end with inner hole adds
Work is at 10 ° of cone angles (1).
4. diesel engine connecting bar check bolt according to claim 1, it is characterised in that: anti-porosity is counterbore, the first inner hole
(3) it is processed into semicircle in top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705540.XU CN208919013U (en) | 2018-10-19 | 2018-10-19 | Diesel engine connecting bar check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705540.XU CN208919013U (en) | 2018-10-19 | 2018-10-19 | Diesel engine connecting bar check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919013U true CN208919013U (en) | 2019-05-31 |
Family
ID=66709976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821705540.XU Active CN208919013U (en) | 2018-10-19 | 2018-10-19 | Diesel engine connecting bar check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977343A (en) * | 2019-11-29 | 2020-04-10 | 安庆中船动力配套有限公司 | Processing technology of threaded blind hole of connecting rod body |
-
2018
- 2018-10-19 CN CN201821705540.XU patent/CN208919013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977343A (en) * | 2019-11-29 | 2020-04-10 | 安庆中船动力配套有限公司 | Processing technology of threaded blind hole of connecting rod body |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |