CN206682142U - A kind of new type crank - Google Patents
A kind of new type crank Download PDFInfo
- Publication number
- CN206682142U CN206682142U CN201720262806.7U CN201720262806U CN206682142U CN 206682142 U CN206682142 U CN 206682142U CN 201720262806 U CN201720262806 U CN 201720262806U CN 206682142 U CN206682142 U CN 206682142U
- Authority
- CN
- China
- Prior art keywords
- crank
- balance
- new type
- wheel assembly
- chain wheel
- 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
It the utility model is related to a kind of new type crank, including connecting rod, the first crank, the second crank, crankpin and chain wheel assembly；One end end of connecting rod is connected with extraneous cylinder piston；First crank and the second crank are connected by the other end end of crankpin and connecting rod；Chain wheel assembly is fixed on the first crank；Chain wheel assembly includes sprocket body；Sprocket body is provided with the axis hole for being used for being arranged and be fixed on the first crank, and the outer of sprocket body is provided with multigroup parallel relative concentric gear teeth；The shaft hole inner wall of sprocket body is provided with locating slot；First crank is provided with locating convex block corresponding with locating slot.The utility model is by setting chain wheel assembly; when making transmission of crankshaft; by multigroup gear teeth with one heart of chain wheel assembly, stress is driven simultaneously; and then improve the output torque of bent axle; powerful output is realized, reduces shock loading, and then reduces noise caused by engine work; also bent axle is played a very good protection, extends the service life of bent axle.
Description
Technical field
Technical field of engines is the utility model is related to, more particularly to a kind of new type crank.
Background technology
Bent axle is the main rotating mechanism of engine.At present, existing bent axle is mainly driven by gear, specifically
, pumping for cylinder piston is transformed into the circular motion of itself by existing bent axle by connecting rod, then passes through fixation
Rotation is transferred to extraneous camshaft by the gear on bent axle, and camshaft then connects with engine miscellaneous part such as cylinder gate
Connect, to control the aperture of valve.
When using huge discharge cylinder to increase acceleration, when passing through gear drive, due to there was only single strength of gear, and
The insufficient strength of gear, the rigid contact in transmission, impacts that load is relatively excessive, causes the output torque of bent axle small.By
It is power and the product of the arm of force in torque, power is the product of power and speed, in the case where the arm of force and speed are certain, output torque
Small, then the power output of bent axle is small, it is seen then that now the power output of bent axle is small and can not realize high-power output；Bent axle simultaneously
When operating rate is fast, continuous vibration is there is also, noise during engine work is added, noise pollution is generated to environment.
Utility model content
Based on this, the purpose of this utility model is, there is provided a kind of new type crank, its have can be achieved high-power output,
Impact load can be reduced, reduce noise, balance vibration, extend the advantages of bent axle service life.
A kind of new type crank, including connecting rod, the first crank, the second crank, crankpin and chain wheel assembly；The one of the connecting rod
End end is connected with extraneous cylinder piston；First crank and the second crank are another by the crankpin and the connecting rod
Hold end connection；The chain wheel assembly is fixed on second crank；The chain wheel assembly includes sprocket body；The sprocket wheel
Body is provided with the axis hole for being used for being arranged and be fixed on second crank, and the outer of the sprocket body is provided with multigroup parallel phase
To the concentric gear teeth；The shaft hole inner wall of the sprocket body is provided with locating slot；Second crank is provided with and the locating slot
Corresponding locating convex block.
Compared to prior art, the utility model is by setting chain wheel assembly, when making transmission of crankshaft, passes through chain wheel assembly
Multigroup gear teeth stress transmission, and then improve the output torque of bent axle simultaneously with one heart, realizes powerful output, avoids list
Individual gear because insufficient strength cause transmission when rigid contact caused by bent axle can not finally realize high-power output the defects of.Further
Ground, become multiple gears stress simultaneously from single strength of gear, produced when reducing shock loading, and then reducing engine work
Raw noise, also plays a very good protection to bent axle, extends the service life of bent axle.
Further, the chain wheel assembly also includes chain；The chain connection is driven the nebenkern of the sprocket body
Tooth and external cam axle.
Further, the surface of the concentric gear teeth and chain contact is provided with wear-resistant piece.
Further, the diameter where the concentric gear teeth of each group is equal.
Further, in addition to balanced component；Accommodation space is provided between first crank and second crank；Institute
State balanced component one end to be connected with first crank, the other end is arranged in the accommodation space.
Further, the balanced component includes balance gear, balance shaft and balance weight；One end of the balance gear is set in
On first crank, the other end is arranged the balance shaft；Described balance weight one end and the balance axis connection, the other end are set
In the accommodation space.
Further, the balance weight includes integrally formed fixed part and balance portion；The fixed part and the balance
Axle is fixedly connected, and the balance portion is in fan and is arranged in the accommodation space.
Further, first crank and the second crank are located at the both sides of the connecting rod, and first crank and
The centerline collineation of two cranks.
Further, the center line of the balance shaft is parallel with the first crank center line.
Further, the center line in the balance portion and the central axis of the balance shaft.
Compared to prior art, the utility model is by setting chain wheel assembly, when making transmission of crankshaft, passes through chain wheel assembly
Multigroup gear teeth stress transmission, and then improve the output torque of bent axle simultaneously with one heart, realizes powerful output, avoids list
Individual gear because insufficient strength cause transmission when rigid contact caused by bent axle can not finally realize high-power output the defects of.Further
Ground, become multiple gears stress simultaneously from single strength of gear, produced when reducing shock loading, and then reducing engine work
Raw noise, also plays a very good protection to bent axle, extends the service life of bent axle.Meanwhile by balanced component,
When the first crank and the second crank vibrate, using vibrations power caused by balanced component come balance vibration, avoid
First crank and the second crank vibrate and trigger the vibration of engine other assemblies, further reduce vibrating noise, strengthen
Stability, the performance of engine is improved, extend the life-span of engine.
In order to more fully understand and implement, the utility model is described in detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of new type crank in the utility model embodiment；
Fig. 2 is the structural representation of balance shaft and balance weight shown in Fig. 1；
Fig. 3 is the structural representation of balance weight shown in Fig. 2；
Fig. 4 is the part-structure schematic diagram of sprocket wheel shown in Fig. 1.
Embodiment
Referring to Fig. 1, it is the structural representation of new type crank in the utility model embodiment.
The bent axle includes connecting rod 1, the first crank 2, the second crank 3, crankpin 4, balanced component 5 and chain wheel assembly 6.
One end end of the connecting rod 1 is connected with extraneous cylinder piston.The crank 3 of first crank 2 and second passes through institute
The other end end that crankpin 4 is stated with the connecting rod 1 is connected, and is provided with and is held between first crank 2 and second crank 3
It is empty an A.Described one end of balanced component 5 is connected with first crank 2, the other end be arranged on first crank 2 with it is described
In the accommodation space A of second crank 3.The chain wheel assembly 6 is fixed on second crank 3, for connecting with external cam axle
Connect.
In the present embodiment, the crank 3 of the first crank 2 and second is located at the both sides of the connecting rod 1, and first crank
2 and second crank 3 centerline collineation.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of balance shaft and balance weight shown in Fig. 1；Fig. 3 is Fig. 2 institutes
Show the structural representation of balance weight.The balanced component 5 includes balance gear 51, balance shaft 52 and balance weight 53.The balance gear
51 one end is set on first crank 2, and the other end is arranged with the balance shaft 52.Described one end of balance weight 53 with it is described
Balance shaft 52 is connected, and the other end is arranged in the accommodation space A between first crank 2 and second crank 3.When described
When first crank 2 rotates, the balance gear 51 drives the balance shaft 52 to be rotated with balance weight 53 also with rotation；When
When first crank 2 vibrates, because vibrations power caused by balance shaft 52 and the inertia of balance weight 53 can be with flat
Weighing apparatus vibration, reduces the vibration of bent axle and engine, so as to improve the stability of engine.
In the present embodiment, the centerline parallel of the center line of the balance shaft 52 and first crank 2.
The balance weight 53 includes integrally formed fixed part 531 and balance portion 532；The fixed part 531 is put down with described
Weighing apparatus axle 52 is fixedly connected；The balance portion 532 is in fan and is arranged in the accommodation space A.
Referring to Fig. 4, it is the part-structure schematic diagram of sprocket wheel shown in Fig. 1.The chain wheel assembly 6 includes sprocket body 61
With chain (not shown).The sprocket body 61 is provided with the axis hole 611 for being used for being arranged and be fixed on second crank 3.
The outer of the sprocket body 61 is provided with multigroup parallel relative concentric gear teeth 612, and the diameter where the concentric gear teeth 612 of each group is big
It is small equal.The chain is used to connect the concentric gear teeth for being driven the sprocket body 61 and external cam axle.
The shaft hole inner wall of the sprocket body 61 is provided with locating slot 613；Second crank 3 is provided with and the locating slot
Locating convex block corresponding to 613, the sprocket body 61 are fastened on the locating slot 613 by the positioning wedged block, with institute
The second crank 3 is stated to be fixedly connected.
To reduce the abrasion of the gear teeth, extend the life-span of sprocket body, reduce cost, further change as of the present utility model
Enter, the surface of the concentric gear teeth and chain contact is provided with wear-resistant piece.
In order to which the work of bent axle is better achieved, clutch shaft bearing B1 is also arranged with first crank 2, it is bent second
Second bearing B2 is arranged with handle 3.In order to which the work of balanced component 5 is better achieved, also it is arranged at the both ends of balance shaft 52
There are 3rd bearing B3 and fourth bearing B4.Bearing plays a part of to support or is oriented to, carrying is radially as the fixed member in machinery
Load, determine the relative motion position of axle and other parts.
In order to preferably transmit moment of torsion, the first first quarter moon is additionally provided with the balance gear 51 and the junction of the first crank 2
Key C1, the second woodruff key C2 is additionally provided between the balance gear 51 and the balance shaft 52, in the end of second crank 3
It is additionally provided with the 3rd woodruff key C3.
Compared to prior art, the utility model is by setting chain wheel assembly, when making transmission of crankshaft, passes through chain wheel assembly
Multigroup gear teeth stress transmission, and then improve the output torque of bent axle simultaneously with one heart, realizes powerful output, avoids list
Individual gear because insufficient strength cause transmission when rigid contact caused by bent axle can not finally realize high-power output the defects of.Further
Ground, become multiple gears stress simultaneously from single strength of gear, produced when reducing shock loading, and then reducing engine work
Raw noise, also plays a very good protection to bent axle, extends the service life of bent axle.Meanwhile by balanced component,
When the first crank and the second crank vibrate, using vibrations power caused by balanced component come balance vibration, avoid
First crank and the second crank vibrate and trigger the vibration of engine other assemblies, further reduce vibrating noise, strengthen
Stability, the performance of engine is improved, extend the life-span of engine.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.
Claims (10)
- A kind of 1. new type crank, it is characterised in that：Including connecting rod, the first crank, the second crank, crankpin and chain wheel assembly；Institute One end end for stating connecting rod is connected with extraneous cylinder piston；First crank and the second crank by the crankpin with it is described The other end end connection of connecting rod；The chain wheel assembly is fixed on second crank；The chain wheel assembly includes sprocket wheel sheet Body；The sprocket body is provided with the axis hole for being used for being arranged and be fixed on second crank, and the outer of the sprocket body is set There are multigroup parallel relative concentric gear teeth；The shaft hole inner wall of the sprocket body is provided with locating slot；Second crank is provided with Locating convex block corresponding with the locating slot.
- 2. new type crank according to claim 1, it is characterised in that：The chain wheel assembly also includes chain；The chain Connect the gear teeth with one heart and outside camshaft.
- 3. new type crank according to claim 2, it is characterised in that：The surface of the concentric gear teeth and chain contact is provided with wear-resisting Damage block.
- 4. new type crank according to claim 1, it is characterised in that：Diameter where the concentric gear teeth of each group is equal.
- 5. new type crank according to claim 1, it is characterised in that：Also include balanced component；First crank and institute State and be provided with accommodation space between the second crank；Described balanced component one end is connected with first crank, and the other end is arranged on institute State in accommodation space.
- 6. new type crank according to claim 5, it is characterised in that：The balanced component include balance gear, balance shaft and Balance weight；One end of the balance gear is set on first crank, and the other end is arranged the balance shaft；The balance weight one End and the balance axis connection, the other end are arranged in the accommodation space.
- 7. new type crank according to claim 6, it is characterised in that：The balance weight include integrally formed fixed part and Balance portion；The fixed part is fixedly connected with the balance shaft, and the balance portion is in fan and is arranged in the accommodation space.
- 8. new type crank according to claim 6, it is characterised in that：First crank and the second crank are located at the company The both sides of bar, and the centerline collineation of first crank and the second crank.
- 9. new type crank according to claim 6, it is characterised in that：The center line of the balance shaft and first crank Centerline parallel.
- 10. new type crank according to claim 9, it is characterised in that：The center line in the balance portion and the balance shaft Central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262806.7U CN206682142U (en) | 2017-03-17 | 2017-03-17 | A kind of new type crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720262806.7U CN206682142U (en) | 2017-03-17 | 2017-03-17 | A kind of new type crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206682142U true CN206682142U (en) | 2017-11-28 |
Family
ID=60393618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720262806.7U Expired - Fee Related CN206682142U (en) | 2017-03-17 | 2017-03-17 | A kind of new type crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206682142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350751A (en) * | 2020-03-12 | 2020-06-30 | 江苏松林汽车零部件有限公司 | Sectional type nodular cast iron crankshaft |
-
2017
- 2017-03-17 CN CN201720262806.7U patent/CN206682142U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350751A (en) * | 2020-03-12 | 2020-06-30 | 江苏松林汽车零部件有限公司 | Sectional type nodular cast iron crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171128 Termination date: 20200317 |