CN206000847U - A kind of automobile engine lightweight bent axle - Google Patents
A kind of automobile engine lightweight bent axle Download PDFInfo
- Publication number
- CN206000847U CN206000847U CN201620962222.6U CN201620962222U CN206000847U CN 206000847 U CN206000847 U CN 206000847U CN 201620962222 U CN201620962222 U CN 201620962222U CN 206000847 U CN206000847 U CN 206000847U
- Authority
- CN
- China
- Prior art keywords
- crank
- pin
- hole
- bent axle
- trunnion
- 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)
Abstract
This utility model is related to a kind of automobile engine lightweight bent axle, belongs to technical field of automobile engine.Including trunnion, crank arm and crank-pin, described crank-pin is connected with trunnion by crank arm, through hole is had outside described crank arm and the connection end of crank-pin, described through hole runs through crank-pin from the outside of crank arm and the connection end of crank-pin, described crank arm and crank-pin both ends are respectively equipped with inclined-plane, angle between described inclined-plane and the axis of trunnion is obtuse angle, and described through hole is opened on inclined-plane.This utility model passes through holes drilled through duplicate removal on crank-pin, so that crank-pin position is reduced with respect to the moment of inertia at main bearing journal center, effectively reduces crankshaft counter balance quality, so that bent axle total quality significantly reduces.
Description
Technical field
This utility model is related to technical field of automobile engine and in particular to a kind of automobile engine lightweight bent axle.
Background technology
Current automotive industry can reduce for the requirement more and more higher of energy-conserving and environment-protective, automobile engine crankshaft lightweight
While electromotor and complete vehicle quality, also making electromotor and complete vehicle structure compacter, thus reducing complete-vehicle oil consumption, also making to start
The NVH performance of machine and car load is improved.Existing bent axle comes using in each blind hole boring an inclination in crank-pin both sides mostly
Duplicate removal, this hole can reduce bent axle weight, but the quantity in hole is more, and manufacturing procedure is relative complex, for the lightweight of bent axle
Improvement result is limited.
Utility model content
The purpose of this utility model is aiming at the defect of prior art, provides a kind of automobile engine lightweight bent axle.
This crank structure can effectively reduce the moment of inertia that crank-pin is with respect to main bearing journal center, reduces the quality of crankshaft counter balance,
Make that bent axle overall structure is more compact, quality is lighter.
The technical solution adopted in the utility model is：Including trunnion, crank arm and crank-pin, described crank-pin passes through song
Shaft arm is connected with trunnion, has through hole outside described crank arm and the connection end of crank-pin, and described through hole is from crank arm and song
Crank-pin is run through in the outside of the connection end of handle pin, and described crank arm and crank-pin both ends are respectively equipped with inclined-plane, described inclined-plane with
Angle between the axis of trunnion is obtuse angle, and described through hole is opened on inclined-plane.
Further preferred structure, described through-bore axis can coaxial with crank pin axis, parallel, intersect or antarafacial.
The beneficial effects of the utility model：By holes drilled through duplicate removal on crank-pin, make crank-pin position with respect to bent axle
The moment of inertia at trunnion center reduces, and effectively reduces crankshaft counter balance quality, so that bent axle total quality significantly reduces, knot
Structure is compacter；Reduce engine consumption；NVH performance simultaneously for electromotor also has some improvement；Improve material
Utilization rate, reduces cost.
Brief description
Fig. 1 is this utility model structural representation.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, is easy to be well understood to
This utility model, but they do not constitute restriction to this utility model.
As shown in figure 1, this utility model includes trunnion 1, crank-pin 3 and the crank arm 2 connecting both, crank-pin 3
It is integrally formed with two crank arms 2, goes repeated hole to be through hole 4, run through crank-pin 3 from the outside of crank arm 2 and crank-pin 3 connection end,
Crank arm 2 is respectively equipped with inclined-plane with the both ends of crank-pin 3 connection end 2.1, the angle between the axis of this inclined-plane and trunnion 1
For obtuse angle, through hole 4 is arranged on inclined-plane, through hole 4 axis can coaxial with crank pin axis, parallel, intersect or antarafacial.Through hole 4 will
Avoid bent axle upper oil hole 5, and keep certain distance, through hole 4 diameter is meeting the requirement of crankshaft fatigue strength and oily pore wall strength
On the premise of as far as possible big, thus reaching the purpose of the counterweight reducing balance weight.
In the present embodiment, through hole 4 is arranged in the middle part of crank-pin 3, and from the position of trunnion farther out, and through hole 4 has necessarily
Diameter, be more beneficial for reduce crank-pin 3 with respect to main bearing journal center the moment of inertia, and then reduce balance weight counterweight,
Improve the compactedness of crankshaft structure, reduce the total quality of bent axle.
This utility model molding in the form of solid forging or casting, then reduces crankshaft quality by hole drilling and reaming.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (2)
1. a kind of automobile engine lightweight bent axle, including trunnion (1), crank arm (2) and crank-pin (3), described crank-pin
(3) it is connected the connection end it is characterised in that described crank arm (2) and crank-pin (3) with trunnion (1) by crank arm (2)
(2.1) have through hole (4) outside, described through hole (4) is run through from the outside of crank arm (2) and the connection end (2.1) of crank-pin (3)
Crank-pin (3), described crank arm (2) and crank-pin (3) both ends are respectively equipped with inclined-plane, the axle of described inclined-plane and trunnion (1)
Angle between line is obtuse angle, and described through hole (4) is opened on inclined-plane.
2. a kind of automobile engine lightweight bent axle according to claim 1 is it is characterised in that described through hole (4) axis
Can with crank-pin (3) axis coaxle, parallel, intersect or antarafacial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620962222.6U CN206000847U (en) | 2016-08-26 | 2016-08-26 | A kind of automobile engine lightweight bent axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620962222.6U CN206000847U (en) | 2016-08-26 | 2016-08-26 | A kind of automobile engine lightweight bent axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000847U true CN206000847U (en) | 2017-03-08 |
Family
ID=58197697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620962222.6U Active CN206000847U (en) | 2016-08-26 | 2016-08-26 | A kind of automobile engine lightweight bent axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000847U (en) |
-
2016
- 2016-08-26 CN CN201620962222.6U patent/CN206000847U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |