CN204344801U - A kind of mini four-stroke gasoline engine crankshaft & connecting - Google Patents
A kind of mini four-stroke gasoline engine crankshaft & connecting Download PDFInfo
- Publication number
- CN204344801U CN204344801U CN201420837296.8U CN201420837296U CN204344801U CN 204344801 U CN204344801 U CN 204344801U CN 201420837296 U CN201420837296 U CN 201420837296U CN 204344801 U CN204344801 U CN 204344801U
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- China
- Prior art keywords
- crank
- mini
- gasoline engine
- crankshaft
- bent axle
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- Expired - Fee Related
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Transmission Devices (AREA)
Abstract
A kind of mini four-stroke gasoline engine crankshaft & connecting, belongs to graden machine equipment technical field.Comprise and be contained in being connected by crank pin with right crank by left crank and the bent axle formed on mini four-stroke general gasoline engines, by the connecting rod that crank pin is connected with bent axle, deep groove ball bearing, timing gear, oil sealing I and oil sealing II are housed at the two ends of bent axle, it is characterized in that left crank and right crank being shaped with equalizing piston, crankshaft & connecting moves the inertial force of reciprocating mass, the equilibrium block of rotating inertia force that produce; Right crank is equipped with deaerator.The utility model energy active balance mini four-stroke gasoline engine piston, crankshaft & connecting move inertial force, the rotating inertia force of the reciprocating mass produced, and eliminate graden machine equipment and therefore produce vibration; And right crank is equipped with deaerator, thus effectively reduce the lubricating oil consumption of mini four-stroke gasoline engine.
Description
Technical field
The utility model belongs to graden machine equipment technical field, is specifically related to a kind of mini four-stroke gasoline engine crankshaft & connecting.
Background technique
Mini four-stroke gasoline engine is commonly used on graden machine equipment, mini four-stroke gasoline engine is owing to being single cylinder structure, piston, crankshaft & connecting moves the inertial force of the reciprocating mass produced, rotating inertia force is the vibrative major reason of mini four-stroke gasoline engine, as notification number: the technological scheme of CN 201381903 " a kind of mini four-stroke gasoline engine " patent, it is not corresponding to piston, crankshaft & connecting moves the inertial force of the reciprocating mass produced, rotating inertia force carries out the structure balanced, so it can produce vibration in operation.In order to eliminate the disadvantage of above-mentioned existence, there has been proposed as notification number: CN: 201635791U " mini four-stroke gasoline engine ", notification number: CN 202251656U, technological schemes such as " a kind of crankshaft & connectings with balance sysmte ".The former technological scheme adopts inertial force, the rotating inertia force that " left part of bent axle is provided with flywheel rotor " carrys out equalizing piston, crankshaft & connecting moves the reciprocating mass produced; The technological scheme of the latter is " it is characterized in that: to be also provided with crankshaft rod assembly (2) in casing (1) two in described casing (1) and to fixedly mount the trunnion shaft (3) holding line to parallel; described trunnion shaft (3) and crankshaft rod assembly (2) are separately installed with two and engage each other and have balance shaft gear (4) and the crankshaft gear (5) of identical gear parameter, described trunnion shaft (3) is provided with equilibrate counterweight (6) ".
The disadvantage that technique scheme exists is complex structure, and it both improved manufacture cost, had increased considerably again the weight of " mini four-stroke gasoline engine ", and the graden machine equipment that this employing to palm top " mini four-stroke gasoline engine " is used as power one to avoid greatly.In addition, existing mini four-stroke gasoline engine usually adopts and crank-connecting rod gets rid of oil clot to realize splash lubrication, effectively cannot realize mist of oil and be separated.
Summary of the invention
The purpose of this utility model to provide a kind of mini four-stroke gasoline engine crankshaft & connecting, its can active balance mini four-stroke gasoline engine piston, crankshaft & connecting move inertial force, the rotating inertia force of the reciprocating mass produced, and eliminates graden machine equipment and therefore produces and vibrate; And right crank is equipped with deaerator, the centrifugal force produced when rotating with crankshaft-link rod is separated the mist of oil that four-stroke gasoline engine lubrication system produces, thus effectively reduces the lubricating oil consumption of mini four-stroke gasoline engine; And said structure is simple, honest and clean at the bottom of cost, institute gains in weight limited.
Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of mini four-stroke gasoline engine crankshaft & connecting, comprise and be contained in being connected by crank pin with right crank by left crank and the bent axle formed on mini four-stroke general gasoline engines, by the connecting rod that crank pin is connected with bent axle, deep groove ball bearing, timing gear, oil sealing I and oil sealing II are housed at the two ends of bent axle, and its main points are left crank and right crank to be shaped with equalizing piston, crankshaft & connecting moves the inertial force of reciprocating mass, the equilibrium block of rotating inertia force that produce; Right crank is equipped with deaerator.
As preferably, described deaerator is provided with radial direction through hole in right crank radial direction, is axially arranged with and communicates and the vertical axial hole leading to air filter with radial direction through hole; Between crank pin and connecting rod, needle bearing is housed.
The beneficial effects of the utility model: the inertial force produced by equilibrium block on left crank and right crank comes inertial force, the rotating inertia force of the reciprocating mass that balance crankshaft linkage mechanism and piston movement produce. reach the vibration effectively reducing mini four-stroke gasoline engine and graden machine equipment, improve the operation comfort of user; Another effect is that the centrifugal force produced when utilizing crankshaft-link rod to rotate continues to get rid of in oil pocket to make liquid oil droplet, steam state material then arrives air filter by right crank radial direction through hole, axial hole and participates in burning, realize the separation of the mist of oil that four-stroke gasoline engine lubrication system produces, effectively reduce the lubricating oil consumption of mini four-stroke gasoline engine simultaneously; And said structure is simple, honest and clean at the bottom of cost, institute gains in weight limited.
Accompanying drawing explanation
Fig. 1: the utility model mini four-stroke gasoline engine crankshaft & connecting structural representation plan view
Fig. 2: Fig. 1 left view
Fig. 3: Fig. 2 A-A sectional view
In Fig. 1-3, the left crank of 1-, 2-oil sealing I, 3-deep groove ball bearing, 4-crank pin, 5-connecting rod, 6-needle bearing, 7-timing gear, 8-deaerator, the right crank of 9-oil sealing II, 10-, 11-bent axle, 12-radial direction through hole, 13-axial hole, 14-equilibrium block.
Embodiment
Embodiment below just represented by Fig. 1-3 makes a step to the utility model and describes, comprise and be contained in being connected by crank pin 4 with right crank 10 by left crank 1 and the bent axle 11 formed on mini four-stroke general gasoline engines, by the connecting rod 5 that crank pin 4 is connected with bent axle 11, deep groove ball bearing 3, timing gear 7, oil sealing I 2 and oil sealing II 9 are housed at the two ends of bent axle 11, left crank 1 and right crank 10 are shaped with equalizing piston, crankshaft & connecting moves the inertial force of the reciprocating mass produced, the equilibrium block 14 of rotating inertia force; Right crank 10 is equipped with deaerator 8; Described deaerator 8 is provided with radial direction through hole 12 in right crank 10 radial direction, is axially arranged with and communicates and the vertical axial hole 13 leading to air filter with radial direction through hole 12; Needle bearing 6 is housed between crank pin 4 and connecting rod 5.
Claims (2)
1. a mini four-stroke gasoline engine crankshaft & connecting, comprise and be contained in being connected by crank pin (4) with right crank (10) by left crank (1) and the bent axle (11) formed on mini four-stroke general gasoline engines, by the connecting rod (5) that crank pin (4) is connected with bent axle (11), at the two ends of bent axle (11), deep groove ball bearing (3) is housed, timing gear (7), oil sealing I (2) and oil sealing II (9), it is characterized in that left crank (1) and right crank (10) are shaped with equalizing piston, crankshaft & connecting moves the inertial force of the reciprocating mass produced, the equilibrium block (14) of rotating inertia force, deaerator (8) right crank (10) is equipped with.
2. a kind of mini four-stroke gasoline engine crankshaft & connecting according to claim 1, described deaerator (8) is provided with radial direction through hole (12) in right crank (10) radial direction, is axially arranged with and communicates and the vertical axial hole (13) leading to air filter with radial direction through hole (12); Needle bearing (6) is housed between crank pin (4) and connecting rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837296.8U CN204344801U (en) | 2014-12-25 | 2014-12-25 | A kind of mini four-stroke gasoline engine crankshaft & connecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837296.8U CN204344801U (en) | 2014-12-25 | 2014-12-25 | A kind of mini four-stroke gasoline engine crankshaft & connecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344801U true CN204344801U (en) | 2015-05-20 |
Family
ID=53228072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420837296.8U Expired - Fee Related CN204344801U (en) | 2014-12-25 | 2014-12-25 | A kind of mini four-stroke gasoline engine crankshaft & connecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080878A (en) * | 2019-05-09 | 2019-08-02 | 浙江派尼尔科技股份有限公司 | A kind of vibration damping crankshaft rod assembly meeting requirement for dynamic balance |
| CN113279854A (en) * | 2021-05-28 | 2021-08-20 | 广州三雅摩托车有限公司 | Engine structure capable of reducing excessive leaping of engine |
-
2014
- 2014-12-25 CN CN201420837296.8U patent/CN204344801U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080878A (en) * | 2019-05-09 | 2019-08-02 | 浙江派尼尔科技股份有限公司 | A kind of vibration damping crankshaft rod assembly meeting requirement for dynamic balance |
| CN113279854A (en) * | 2021-05-28 | 2021-08-20 | 广州三雅摩托车有限公司 | Engine structure capable of reducing excessive leaping of engine |
| CN113279854B (en) * | 2021-05-28 | 2021-12-10 | 广州三雅摩托车有限公司 | Engine structure capable of reducing excessive leaping of engine |
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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 |
Granted publication date: 20150520 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |