CN205135740U - Lubricated mechanism of machine oil of small -size four -stroke engine - Google Patents
Lubricated mechanism of machine oil of small -size four -stroke engine Download PDFInfo
- Publication number
- CN205135740U CN205135740U CN201520996247.3U CN201520996247U CN205135740U CN 205135740 U CN205135740 U CN 205135740U CN 201520996247 U CN201520996247 U CN 201520996247U CN 205135740 U CN205135740 U CN 205135740U
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- Prior art keywords
- room
- oil
- accumulator
- bent axle
- cam
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- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a lubricated mechanism of machine oil of small -size four -stroke engine, it includes the oil feed passageway on the accumulator, is equipped with on the bent axle of engine to connect the pore, when crankshaft rotation to certain angle, connects the pore both ends and docks oil feed passageway and bent axle room respectively, between bent axle room and the rocking arm room, between rocking arm room and the cam room, all be equipped with the oil circuit passageway between cam room and the accumulator, and formation circulates, bent axle room and rocking arm room between, all be equipped with the check valve between cam room and the accumulator, the flow direction from bent axle room flow direction rocking arm room in the check valve to reach and follow cam room flow direction accumulator, the cam room communicates with an oil strain room again, connects the flue gas leading on the oil strain room, and the bent axle room is connected to the oil strain room simultaneously, also is equipped with the check valve between oil strain room and the bent axle room, and oil strain room flow direction bent axle room is followed to the flow direction in the check valve. The device has guaranteed the circulation route of machine oil, has reduced the engine oil loss, avoids the oil spilling phenomenon of machine oil simultaneously again.
Description
Technical field
The utility model belongs to general dynamic machinery, particularly a kind of oil lubricating mechanism of mini four-stroke motor.
Background technique
Hand four stroke petrol engine, in order to reach miniaturization, light-weighted requirement, does not generally adopt oil pump lubrication system.Three conditions must be met again in use, enough fuel deliveries can be ensured, oil spilling phenomenon can not be there is again, do not stop working when will reach 360 degree of revolution operations simultaneously, this has larger difficulty when designing, though therefore hand four stroke petrol engine has the development history of 20 years, kind is few in the market, and quantity is no more than two-stroke gasoline engine.
Cylinder body is provided with in existing engine housing, crankshaft room is formed in cylinder body, crankshaft room has Power output bent axle, the rotation of crankrocker mechanism in cylinder body operationally with dynamic crankshaft, be formed with accumulator, cam chamber and rocker arm chamber between cylinder body and casing; namely rocker arm chamber is the valve cage of motor, how reasonably arrange with the lubricating loop of upper chamber, become our main research purpose.
Summary of the invention
The purpose of this utility model is for available engine engine oil recycle system Problems existing, and provides a kind of compact structure, effectively reduces motor volume, alleviates the oil lubricating mechanism of the mini four-stroke motor of engine weight.
The purpose of this utility model realizes by following technical proposal: a kind of oil lubricating mechanism of mini four-stroke motor, it comprises a casing, accumulator is provided with in casing, accumulator is provided with oil inlet passage, it is characterized in that, the bent axle of motor is provided with and connects duct, when crankshaft rotating is to several angle, connect two ends, duct and dock oil inlet passage and crankshaft room respectively, between crankshaft room and rocker arm chamber, between rocker arm chamber and cam chamber, asphalt channel is equipped with between cam chamber and accumulator, and form circulation, between described crankshaft room and rocker arm chamber, all one-way valve is provided with between cam chamber and accumulator, the flow direction in one-way valve flows to rocker arm chamber from crankshaft room, and flow to accumulator from cam chamber, described cam chamber is communicated with an oil strain room again, room connects outlet pipe to oil strain, oil strain room connects crankshaft room simultaneously, also one-way valve is provided with between oil strain room and crankshaft room, the flow direction in one-way valve flows to crankshaft room from oil strain room.
Described accumulator is provided with a suction pipe, and suction pipe lower end abuts in bottom accumulator, and upper end is connected on oil inlet passage.
Be provided with filter core in described oil strain room, filter core fills up whole oil strain room.
Described one-way valve comprises a decorative pearl on top of an official cap and a spring, and spring is against the rear end of spring, and for the reset of the decorative pearl on top of an official cap, described decorative pearl on top of an official cap shutoff is on each asphalt channel.This one-way valve is not only simple, and than reed or rubber duck-bill valve more reliable.
Be provided with the rocking arm of push rod connecting rocker arm indoor in described cam chamber, be provided with push-rod hole between cam chamber and rocker arm chamber, described push rod is connected on rocking arm through push-rod hole, and push-rod hole is the asphalt channel between crankshaft room and rocker arm chamber.
Described casing is provided with cylinder head body, and described crankshaft room is formed in cylinder head body.Dismounting casing and bent axle is not needed during maintenance.
Compared with prior art, the utility model utilizes piston up-down to produce pressure difference to reach the object of pump oil, be provided with multiple tracks one-way valve, ensure that machine oil one-way circulation on the one hand, turn increase oil filtration and recovery approach simultaneously, increase oil duct and add fuel delivery, the hand four stroke petrol engine making output power larger, also can ensure reliable operation.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks cut away view.
Fig. 2 is that cut away view is looked on the right side of the present utility model.
Fig. 3 is outlet pipe position view.
In figure, 1, accumulator; 2, suction pipe; 3, the decorative pearl on top of an official cap; 4, spring; 5, oil inlet passage; 6, outlet pipe; 7, oil strain room; 8, duct is connected; 9, bent axle; 10, cam chamber; 11, crankshaft room; 12-1, push-rod hole; 12-2, asphalt channel; 13, push rod; 14, rocker arm chamber; 15, rocking arm; 16, cylinder head; 17, cylinder body; 18, casing.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model comprises oil inlet passage 5 on accumulator 1 and suction pipe 2, and suction pipe 2 lower end abuts in bottom accumulator 1, and upper end is connected on oil inlet passage 5, the machine oil of accumulator 1 can be drawn to oil inlet passage 5.The bent axle 9 of motor is provided with and connects duct 8, when bent axle 9 rotates to several angle, connects two ends, duct 8 and docks oil inlet passage 5 and crankshaft room 11 respectively.Asphalt channel 12-1 and 12-2 is equipped with between crankshaft room 11 and rocker arm chamber 14, between rocker arm chamber 14 and cam chamber 10, between cam chamber 10 and accumulator 1, cam chamber 10 is communicated with an oil strain room 7 again, oil strain room 7 connect shown in flue gas leading 6 Fig. 3, oil strain room 7 connects crankshaft room 11 simultaneously, above chamber also forms circulation, is all provided with one-way valve between crankshaft room 11 and rocker arm chamber 14, between cam chamber 10 and accumulator 1, between oil strain room 7 and crankshaft room 11.
One-way valve comprises a decorative pearl on top of an official cap 3 and a spring 4, and spring 4 is against the rear end of spring 4, and for the reset of the decorative pearl on top of an official cap 3, the described decorative pearl on top of an official cap 3 shutoff is on each asphalt channel 12-2.
During engine operation, piston pumps, band dynamic crankshaft 9 rotates, when bent axle 9 forwards several angle to, the connection duct 8 on bent axle 9 is just aimed at oil inlet passage 5, because piston upwards causes crankshaft room 11 negative pressure, machine oil in accumulator 1 to be entered with oil inlet passage 5 by suction pipe 2 and is connected duct 8, due to centrifugal action, machine oil, by being splashed to the inside of crankshaft room 11 along the bent axle 9 rotated, makes the part in crankshaft room 11 be lubricated.
Shown in Fig. 2, bent axle 9 continues rotation makes connection duct 8 close, at this moment the piston of crankrocker mechanism moves downward, just malleation is produced in crankshaft room 11, opened by the decorative pearl on top of an official cap 3 in rocker arm chamber 14, the oil gas of splashing then enters rocker arm chamber 14 by asphalt channel 12-2, have lubricated the parts in rocker arm chamber 14 simultaneously, the effect of the decorative pearl on top of an official cap 3 is as one-way valve, ensures that the mist of oil entering rocker arm chamber 14 can not be back to crankshaft room 11.
The rocking arm 15 in push rod 13 connecting rocker arm room 14 is provided with in cam chamber 10, push-rod hole 12-1 is provided with between cam chamber 10 and rocker arm chamber 14, described push rod 13 is connected on rocking arm 15 through push-rod hole 12-1, and push-rod hole 12-1 is the asphalt channel between cam chamber 11 and rocker arm chamber 14.Mist of oil in rocker arm chamber 14 enters cam chamber 10 due to the effect of pressure by push-rod hole 12-1, and cam chamber 10 inner piece is lubricated.
The mist of oil part entering cam chamber 10 can be deposited as oil droplet and suck accumulator 1 with mist of oil by one-way valve, this is because the continuous oil suction of accumulator 1 inner suction pipe 2 causes indoor negative pressure, be enough to one-way valve opens, machine oil mist is made to get back to accumulator 1, pressure balance in holding chamber, the effect of one-way valve stops that machine oil is reverse blows back into cam chamber 10.
Cam chamber 10 bottom leads directly to the oil strain room 7 on bent axle 9 casees, mist of oil after filtering, the machine oil of deposition can suck crankshaft room 11 by one-way valve, this is because the to-and-fro motion of piston makes to produce periodic negative pressure in crankshaft room 11, make one-way valve opens, during crankshaft room's 11 malleation, this valve cuts out, and prevents oil gas from flowing backwards.The flue gas leading 6 that waste gas after filtration then enters on oil strain room 7 is discharged, and sucks firing chamber and burn after air filter.
Each chamber of the present utility model is integrated in a casing 18, and the top of casing 18 is cylinder head body, and cylinder head body is divided into cylinder head 16 and cylinder body 17, does not need dismounting casing 18 and bent axle 9 during maintenance.
Claims (3)
1. the oil lubricating mechanism of a mini four-stroke motor, it comprises a casing, accumulator is provided with in casing, accumulator is provided with oil inlet passage, it is characterized in that, the bent axle of motor is provided with and connects duct, when crankshaft rotating is to several angle, connect two ends, duct and dock oil inlet passage and crankshaft room respectively, between crankshaft room and rocker arm chamber, between rocker arm chamber and cam chamber, asphalt channel is equipped with between cam chamber and accumulator, and form circulation, between described crankshaft room and rocker arm chamber, all one-way valve is provided with between cam chamber and accumulator, the flow direction in one-way valve flows to rocker arm chamber from crankshaft room, and flow to accumulator from cam chamber, described cam chamber is communicated with an oil strain room again, room connects outlet pipe to oil strain, oil strain room connects crankshaft room simultaneously, also one-way valve is provided with between oil strain room and crankshaft room, the flow direction in one-way valve flows to crankshaft room from oil strain room.
2. the oil lubricating mechanism of a kind of mini four-stroke motor according to claim 1, it is characterized in that, described one-way valve comprises a decorative pearl on top of an official cap and a spring, and the decorative pearl on top of an official cap is against the rear end of spring, for the reset of the decorative pearl on top of an official cap, described decorative pearl on top of an official cap shutoff is on each asphalt channel.
3. the oil lubricating mechanism of a kind of mini four-stroke motor according to claim 1 and 2, described casing is provided with cylinder head body, and described crankshaft room is formed in cylinder head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996247.3U CN205135740U (en) | 2015-11-23 | 2015-11-23 | Lubricated mechanism of machine oil of small -size four -stroke engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996247.3U CN205135740U (en) | 2015-11-23 | 2015-11-23 | Lubricated mechanism of machine oil of small -size four -stroke engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135740U true CN205135740U (en) | 2016-04-06 |
Family
ID=55621544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520996247.3U Expired - Fee Related CN205135740U (en) | 2015-11-23 | 2015-11-23 | Lubricated mechanism of machine oil of small -size four -stroke engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135740U (en) |
-
2015
- 2015-11-23 CN CN201520996247.3U patent/CN205135740U/en not_active Expired - Fee Related
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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: 20160406 Termination date: 20171123 |