CN202926858U - Three-cylinder engine crankshaft - Google Patents
Three-cylinder engine crankshaft Download PDFInfo
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- CN202926858U CN202926858U CN 201220623478 CN201220623478U CN202926858U CN 202926858 U CN202926858 U CN 202926858U CN 201220623478 CN201220623478 CN 201220623478 CN 201220623478 U CN201220623478 U CN 201220623478U CN 202926858 U CN202926858 U CN 202926858U
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- equilibrium block
- journal
- connecting rod
- main
- rod axle
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Abstract
The utility model relates to a three-cylinder engine crankshaft. A plurality of main journals, connecting rod journals and six balance blocks are arranged between the front end part and the back end part of the three-cylinder engine crankshaft. The three-cylinder engine crankshaft is characterized in that the circular arc radiuses R of the other end parts of a first balance block, a second balance block, a fifth balance block and a sixth balance block are 70-76mm; the balance weight angles theta of the first balance block, the second balance block, the fifth balance block and the sixth balance block are 14-18 degrees; the circular arc radiuses R of a third balance block and a fourth balance block are 70-76mm; and the balance weight angles theta of the third balance block and the fourth balance block are 0 degrees. By using the crankshaft, the circular arc radiuses and the balance weight angles of the balance blocks are regulated, so that the balance rate of the crankshaft is improved; and meanwhile, by optimizing the widths of the main journals and the connecting rod journals, the strength of the crankshaft is improved; and by regulating the diameters of the main journals and the connecting rod journals, the degree of overlapping between the main journals and the connecting rod journals is improved, and the strength of the crankshaft is also increased.
Description
Technical field
The utility model relates to engine components, is specifically related to a kind of three cylinder engine bent axle.
Background technique
When estimating a motor, not only require it to have powerful power character, fuel economy preferably, in addition it there is the requirement of low emission simultaneously, therefore turbosupercharging and in-cylinder direct injection system have just been introduced when designed engines, motor can be made in the situation that same discharge capacity has higher power, but just just need motor is carried out further lightweight owing to having increased these systems, just become a light-weighted trend and develop three cylinder machines.Bent axle is the requisite parts of motor, the linear reciprocating motion of the piston of motor to be converted to the parts of circulation rotating motion and then outputting power, and the output of the power of bent axle itself belongs to eccentric output, therefore, the increase of engine power just requires bent axle to have higher intensity, also requires connecting rod to have higher balance simultaneously.
And in existing engine crankshaft design, for the intensity that guarantees bent axle just all designs axle journal width and the axle journal diameter of bent axle wider, but cause the whole crank shaft quality comparatively heavy, and remove to arrange the equilibrium block that can make bent axle reach balance according to traditional thinking when the shape of design crankshaft counter balance, but ignore the bent axle deadweight for guaranteeing that crankshaft strength increases, thereby caused the crankshaft counterbalance rate lower.Therefore, the counterweight angle (being the arcuate midway point of equilibrium block and the angle between main journal axial connecting line and gravity vertical) of optimal design Crankshaft Sizes and equilibrium block how can reach so that satisfy bent axle under the lightweight prerequisite at three cylinder machines the research direction that higher intensity and balance just become three cylinder machine crankshafts designs.
Summary of the invention
The purpose of this utility model is to provide a kind of three cylinder engine bent axle, and it can reach higher balance, and can satisfy requirement of strength.
A kind of three cylinder engine bent axle described in the utility model, a kind of three cylinder engine bent axle is provided with the first main journal, the first equilibrium block, first connecting rod axle journal, the second equilibrium block, the second main journal, the 3rd equilibrium block, second connecting rod axle journal, the 4th equilibrium block, the 3rd main journal, the 5th equilibrium block, third connecting rod axle journal, the 6th equilibrium block and four main neck successively between its front end and rearward end; The both sides of described first connecting rod axle journal are connected with an end of described the first equilibrium block and the second equilibrium block respectively, the both sides of described second connecting rod axle journal are connected with an end of described the 3rd equilibrium block and the 4th equilibrium block respectively, and the both sides of described third connecting rod axle journal are connected with an end of described the 5th equilibrium block and the 6th equilibrium block respectively; It is characterized in that: the radius of arc R of the other end of described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block is 70～76mm, and its counterweight angle θ is 14～18 °; The radius of arc R of described the 3rd equilibrium block and the 4th equilibrium block is 70～76mm, and its counterweight angle is 0 °.
Described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block are sector unit; Described the 3rd equilibrium block and the 4th equilibrium block are the rectangular blocks that two ends are circular arc.
Further, the radius of arc R of the other end of described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block is 76mm, and its counterweight angle θ is 16 °; The radius of arc R of described the 3rd equilibrium block and the 4th equilibrium block is 76mm.
The diameter of described the first main journal, the second main journal, the 3rd main journal and four main neck is 40～48mm, and the diameter of described first connecting rod axle journal, second connecting rod axle journal, third connecting rod axle journal is 40～48mm; The width of described the first main journal, the second main journal, the 3rd main journal and four main neck is 22.5～27mm, and the width of described first connecting rod axle journal, second connecting rod axle journal, third connecting rod axle journal is 20～25mm.
Further, the diameter of described the first main journal, the second main journal, the 3rd main journal and four main neck is 46mm, and the diameter of described first connecting rod axle journal, second connecting rod axle journal, third connecting rod axle journal is 44mm; The width of described the first main journal, the second main journal, the 3rd main journal and four main neck is 23mm, and the width of described first connecting rod axle journal, second connecting rod axle journal, third connecting rod axle journal is 22.8mm.
The utility model is compared with the bent axle of existing three cylinder machines and is had the following advantages: by the adjustment to the radius of arc of equilibrium block and counterweight angle thereof, improved the balanced ratio of bent axle; By optimizing the width of main journal and rod journal, improve the intensity of bent axle simultaneously, by adjusting the diameter of main journal and rod journal, improved the degree of overlapping between main journal and rod journal, further increased the intensity of bent axle.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is the structural representation of described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block;
Fig. 4 is the structural representation of described the 3rd equilibrium block and the 4th equilibrium block.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Embodiment 1:
As shown in Figure 1, a kind of three cylinder engine bent axle is provided with the first main journal 2, the first equilibrium block 3, first connecting rod axle journal 4, the second equilibrium block 5, the second main journal 6, the 3rd equilibrium block 7, second connecting rod axle journal 8, the 4th equilibrium block 9, the 3rd main journal 10, the 5th equilibrium block 11, third connecting rod axle journal 12, the 6th equilibrium block 13 and four main neck 14 successively between its front end 1 and rearward end 15; The both sides of described first connecting rod axle journal 4 are connected with an end of described the first equilibrium block 3 and the second equilibrium block 5 respectively, the both sides of described second connecting rod axle journal 8 are connected with an end of described the 3rd equilibrium block 7 and the 4th equilibrium block 9 respectively, and the both sides of described third connecting rod axle journal 12 are connected with an end of described the 5th equilibrium block 11 and the 6th equilibrium block 13 respectively; It is characterized in that: the radius of arc R of the other end of described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block is 70mm, and its counterweight angle θ is 14 °; The radius of arc R of described the 3rd equilibrium block and the 4th equilibrium block is 70mm, and its counterweight angle is 0 °.
Described the first equilibrium block 3, the second equilibrium block 5, the 5th equilibrium block 11 and the 6th equilibrium block 13 are sector unit; Described the 3rd equilibrium block 7 and the 4th equilibrium block 9 are the rectangular blocks of circular arc for two ends.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the diameter of described the first main journal 2, the second main journal 6, the 3rd main journal 10 and four main neck 14 is 40mm, and the diameter of described first connecting rod axle journal 4, second connecting rod axle journal 8, third connecting rod axle journal 12 is 40mm; The width of described the first main journal 2, the second main journal 6, the 3rd main journal 10 and four main neck 14 is 22.5mm, and the width of described first connecting rod axle journal 4, second connecting rod axle journal 8, third connecting rod axle journal 12 is 20mm.
Embodiment 2:
As shown in Figure 1, a kind of three cylinder engine bent axle is provided with the first main journal 2, the first equilibrium block 3, first connecting rod axle journal 4, the second equilibrium block 5, the second main journal 6, the 3rd equilibrium block 7, second connecting rod axle journal 8, the 4th equilibrium block 9, the 3rd main journal 10, the 5th equilibrium block 11, third connecting rod axle journal 12, the 6th equilibrium block 13 and four main neck 14 successively between its front end 1 and rearward end 15; The both sides of described first connecting rod axle journal 4 are connected with an end of described the first equilibrium block 3 and the second equilibrium block 5 respectively, the both sides of described second connecting rod axle journal 8 are connected with an end of described the 3rd equilibrium block 7 and the 4th equilibrium block 9 respectively, and the both sides of described third connecting rod axle journal 12 are connected with an end of described the 5th equilibrium block 11 and the 6th equilibrium block 13 respectively; It is characterized in that: the radius of arc R of the other end of described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block is 76mm, and its counterweight angle θ is 18 °; The radius of arc R of described the 3rd equilibrium block and the 4th equilibrium block is 76mm, and its counterweight angle is 0 °.
Described the first equilibrium block 3, the second equilibrium block 5, the 5th equilibrium block 11 and the 6th equilibrium block 13 are sector unit; Described the 3rd equilibrium block 7 and the 4th equilibrium block 9 are the rectangular blocks of circular arc for two ends.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the diameter of described the first main journal 2, the second main journal 6, the 3rd main journal 10 and four main neck 14 is 48mm, and the diameter of described first connecting rod axle journal 4, second connecting rod axle journal 8, third connecting rod axle journal 12 is 48mm; The width of described the first main journal 2, the second main journal 6, the 3rd main journal 10 and four main neck 14 is 27mm, and the width of described first connecting rod axle journal 4, second connecting rod axle journal 8, third connecting rod axle journal 12 is 25mm.
Embodiment 3:
As shown in Figure 1 and Figure 2, a kind of three cylinder engine bent axle is provided with the first main journal 2, the first equilibrium block 3, first connecting rod axle journal 4, the second equilibrium block 5, the second main journal 6, the 3rd equilibrium block 7, second connecting rod axle journal 8, the 4th equilibrium block 9, the 3rd main journal 10, the 5th equilibrium block 11, third connecting rod axle journal 12, the 6th equilibrium block 13 and four main neck 14 successively between its front end 1 and rearward end 15; The both sides of described first connecting rod axle journal 4 are connected with an end of described the first equilibrium block 3 and the second equilibrium block 5 respectively, the both sides of described second connecting rod axle journal 8 are connected with an end of described the 3rd equilibrium block 7 and the 4th equilibrium block 9 respectively, and the both sides of described third connecting rod axle journal 12 are connected with an end of described the 5th equilibrium block 11 and the 6th equilibrium block 13 respectively; As shown in Figure 3, Figure 4, the radius of arc R of the other end of described the first equilibrium block, the second equilibrium block, the 5th equilibrium block and the 6th equilibrium block is 76mm, and its counterweight angle θ is 16 °; The radius of arc R of described the 3rd equilibrium block and the 4th equilibrium block is 76mm, and its counterweight angle is 0 °.At this moment be optimal situation, the balanced ratio of bent axle is greatly improved, and reaches more than 80%.
Described the first equilibrium block 3, the second equilibrium block 5, the 5th equilibrium block 11 and the 6th equilibrium block 13 are sector unit; Described the 3rd equilibrium block 7 and the 4th equilibrium block 9 are the rectangular blocks of circular arc for two ends.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the diameter of described the first main journal 2, the second main journal 6, the 3rd main journal 10 and four main neck 14 is 46mm, and the diameter of described first connecting rod axle journal 4, second connecting rod axle journal 8, third connecting rod axle journal 12 is 44mm; The width of described the first main journal 2, the second main journal 6, the 3rd main journal 10 and four main neck 14 is 23mm, and the width of described first connecting rod axle journal 4, second connecting rod axle journal 8, third connecting rod axle journal 12 is 22.8mm.H is larger due to degree of overlapping, and the intensity of bent axle is higher, and balanced ratio when rotated is just higher, and therefore, in the situation that no longer increase the bent axle deadweight, the degree of overlapping h of bent axle has reached maximum, and it is best that the intensity of bent axle reaches.
Claims (5)
1. a three cylinder engine bent axle, be provided with the first main journal (2), the first equilibrium block (3), first connecting rod axle journal (4), the second equilibrium block (5), the second main journal (6), the 3rd equilibrium block (7), second connecting rod axle journal (8), the 4th equilibrium block (9), the 3rd main journal (10), the 5th equilibrium block (11), third connecting rod axle journal (12), the 6th equilibrium block (13) and four main neck (14) successively between its front end (1) and rearward end (15); The both sides of described first connecting rod axle journal (4) are connected with the end of described the first equilibrium block (3) with the second equilibrium block (5) respectively, the both sides of described second connecting rod axle journal (8) are connected with the end of described the 3rd equilibrium block (7) with the 4th equilibrium block (9) respectively, and the both sides of described third connecting rod axle journal (12) are connected with the end of described the 5th equilibrium block (11) with the 6th equilibrium block (13) respectively; It is characterized in that: the radius of arc R of the other end of described the first equilibrium block (3), the second equilibrium block (5), the 5th equilibrium block (11) and the 6th equilibrium block (13) is 70～76mm, and its counterweight angle θ is 14～18 °; The radius of arc R of described the 3rd equilibrium block (7) and the 4th equilibrium block (9) is 70～76mm, and its counterweight angle is 0 °.
2. a kind of three cylinder engine bent axle according to claim 1, it is characterized in that: described the first equilibrium block (3), the second equilibrium block (5), the 5th equilibrium block (11) and the 6th equilibrium block (13) they are sector unit; Described the 3rd equilibrium block (7) and the 4th equilibrium block (9) are the rectangular blocks of circular arc for two ends.
3. a kind of three cylinder engine bent axle according to claim 1 and 2, it is characterized in that: the radius of arc R of the other end of described the first equilibrium block (3), the second equilibrium block (5), the 5th equilibrium block (11) and the 6th equilibrium block (13) is 76mm, and its counterweight angle θ is 16 °; The radius of arc R of described the 3rd equilibrium block (7) and the 4th equilibrium block (9) is 76mm.
4. a kind of three cylinder engine bent axle according to claim 1 and 2, it is characterized in that: the diameter of described the first main journal (2), the second main journal (6), the 3rd main journal (10) and four main neck (14) is 40～48mm, and the diameter of described first connecting rod axle journal (4), second connecting rod axle journal (8), third connecting rod axle journal (12) is 40～48mm; The width of described the first main journal (2), the second main journal (6), the 3rd main journal (10) and four main neck (14) is 22.5～27mm, and the width of described first connecting rod axle journal (4), second connecting rod axle journal (8), third connecting rod axle journal (12) is 20～25mm.
5. a kind of three cylinder engine bent axle according to claim 1 and 2, it is characterized in that: the diameter of described the first main journal (2), the second main journal (6), the 3rd main journal (10) and four main neck (14) is 46mm, and the diameter of described first connecting rod axle journal (4), second connecting rod axle journal (8), third connecting rod axle journal (12) is 44mm; The width of described the first main journal (2), the second main journal (6), the 3rd main journal (10) and four main neck (14) is 23mm, and the width of described first connecting rod axle journal (4), second connecting rod axle journal (8), third connecting rod axle journal (12) is 22.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623478 CN202926858U (en) | 2012-11-22 | 2012-11-22 | Three-cylinder engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623478 CN202926858U (en) | 2012-11-22 | 2012-11-22 | Three-cylinder engine crankshaft |
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| Publication Number | Publication Date |
|---|---|
| CN202926858U true CN202926858U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220623478 Expired - Fee Related CN202926858U (en) | 2012-11-22 | 2012-11-22 | Three-cylinder engine crankshaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN202926858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696348A (en) * | 2015-02-04 | 2015-06-10 | 中国重汽集团济南动力有限公司 | Multi-cylinder diesel engine crankshaft and manufacturing method thereof |
| CN106763124A (en) * | 2017-01-04 | 2017-05-31 | 浙江吉利新能源商用车有限公司 | Three-cylinder engine bent axle, three-cylinder engine and vehicle |
-
2012
- 2012-11-22 CN CN 201220623478 patent/CN202926858U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696348A (en) * | 2015-02-04 | 2015-06-10 | 中国重汽集团济南动力有限公司 | Multi-cylinder diesel engine crankshaft and manufacturing method thereof |
| CN104696348B (en) * | 2015-02-04 | 2018-05-15 | 中国重汽集团济南动力有限公司 | A kind of Multi-cylinder diesel engine crank shaft and production method |
| CN106763124A (en) * | 2017-01-04 | 2017-05-31 | 浙江吉利新能源商用车有限公司 | Three-cylinder engine bent axle, three-cylinder engine and vehicle |
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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: 20130508 Termination date: 20191122 |