CN104018906A - Gasoline engine with pressure lubrication structure and lubrication structure of gasoline engine - Google Patents

Gasoline engine with pressure lubrication structure and lubrication structure of gasoline engine Download PDF

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Publication number
CN104018906A
CN104018906A CN201410212067.1A CN201410212067A CN104018906A CN 104018906 A CN104018906 A CN 104018906A CN 201410212067 A CN201410212067 A CN 201410212067A CN 104018906 A CN104018906 A CN 104018906A
Authority
CN
China
Prior art keywords
lubrication
mount pin
oil pump
oil
petrol engine
Prior art date
Application number
CN201410212067.1A
Other languages
Chinese (zh)
Inventor
崔经国
刘涛
赵国华
刘文奇
宋光文
Original Assignee
山东华盛中天工程机械有限责任公司
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Application filed by 山东华盛中天工程机械有限责任公司 filed Critical 山东华盛中天工程机械有限责任公司
Priority to CN201410212067.1A priority Critical patent/CN104018906A/en
Publication of CN104018906A publication Critical patent/CN104018906A/en

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Abstract

The invention discloses a small gasoline engine with a pressure lubrication structure and the lubrication structure of the small gasoline engine, and belongs to gasoline engines and lubrication systems of the gasoline engines. The lubrication structure of the gasoline engine comprises an installing pin A and an installing pin B, the installing pin A is located in a gasoline engine side cover, the installing pin B is located inside a gasoline engine outer shell, the installing pin A is provided with a flat gasket, a cam gear, an oil pump cover, an oil pump inner tooth and an oil pump outer tooth, the installing pin A is internally provided with a lubrication channel, the position, corresponding to the lubrication channel, of a cylinder body is provided with a lubrication hole A, and the part, between the flat gasket and the cam gear, of the installing pin A is provided with a lubrication hole B. The installing pin B is provided with a speed regulating gear and a check ring. The small gasoline engine with the lubrication structure is further provided with a lubrication balancing structure and comprises a breather pipe, an isolation chamber and an oil-gas isolation chamber, the isolation chamber is connected with the oil-gas separation chamber through the breather pipe, the cylinder body, a box body and a box cover are of a vertical split structure along the center axis of a crank, and the box cover is provided with an engine oil sensor.

Description

Petrol engine and the lubricating structure thereof of pressure lubrication structure are installed

Technical field

The invention belongs to petrol engine and lubrication system thereof, specifically, relate in particular to a kind of miniature gasoline engine and lubricating structure thereof that pressure lubrication structure is installed.

Background technique

What original petrol engine mainly adopted is to fly mist formula lubricating system, adopt vaporific oil droplet to be lubricated movement parts, owing to there is no special machine oil transporting power apparatus, it is lubricated that machine oil flies mist under the drive of shift fork and oil thrower wheel, there is lubricated not in place, halfway phenomenon, this lubricating structure often occurs that connnecting rod big end and piston wear seriously cause machine durability to reduce, and affect the working life of petrol engine; Existing petrol engine exists component fabricating cost in early stage higher, has the phenomenon of poor processability after moulding, and casing and housing structure are installed more complicated, Mold Making difficulty, and versatility there are differences, and can not well support the lubricated of related components.

Summary of the invention

The object of the present invention is to provide a kind of miniature gasoline engine and lubricating structure thereof that pressure lubrication structure is installed, it can solve petrol engine, and the especially lubricated problem not in place of miniature gasoline engine, reduces the processing of petrol engine and assemble difficulty, controls cost.

Pressure lubrication for petrol engine structure of the present invention, comprise mount pin first, mount pin second, described mount pin is positioned at petrol engine side cover, mount pin second is positioned at petrol engine shell, and described mount pin is provided with plain cushion, cam wheel, oil pump cover, oil pump internal tooth, oil pump external tooth, is provided with lubrication channel in mount pin, the cylinder body that lubrication channel is corresponding is provided with lubrication hole first, is provided with lubrication hole second on the mount pin between plain cushion and cam wheel; Described mount pin second is provided with speed regulation gear, back-up ring.

The petrol engine that above-mentioned lubricating structure is installed of the present invention, comprise cylinder body, casing, case lid, bent axle, connecting rod, piston, in casing, be provided with sump, described cylinder body, casing, case lid are the separate structure up and down along the central axis of bent axle, described case lid is provided with engine oil sensor, described bent axle is installed on by bearing on the assemblying body of cylinder body and casing, and the lower end of connecting rod is provided with shift fork; Described petrol engine is provided with lubrication balance structure, lubricating structure is installed in side cover, mount pin second is positioned at petrol engine shell, described mount pin is positioned at petrol engine side cover, mount pin second is positioned at petrol engine shell, and described mount pin is provided with plain cushion, cam wheel, oil pump cover, oil pump internal tooth, oil pump external tooth, is provided with lubrication channel in mount pin, the cylinder body that lubrication channel is corresponding is provided with lubrication hole first, is provided with lubrication hole second on the mount pin between plain cushion and cam wheel; Described mount pin second is provided with speed regulation gear, back-up ring; Described lubrication balance structure comprises respirating tube, isolation ward, Oil-gas Separation chamber, and described isolation ward is connected by respirating tube with Oil-gas Separation chamber.

Compared with prior art, the present invention has following beneficial effect:

1, adopt more effective lubricating system, solve lubricated problem not in place in former miniature gasoline engine, use cam wheel to drive oil pump assembly to carry out oil transportation action, compact structure, take full advantage of the transfer function of gear, after using operation of oil pump, make engine-horizontal axle and vertical axis be sufficient lubrication state, applicability is stronger.

2, by the improvement to petrol engine dependency structure and component, make petrol engine assembling easy, adaptability is stronger, reduces assembling and the difficulty that adds man-hour, controls cost.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the position view of isolation ward and Oil-gas Separation chamber in the present invention.

In figure: 1, cylinder body; 2, casing; 3, case lid; 4, engine oil sensor; 5, sump; 6, mount pin second; 7, speed regulation gear; 8, cam wheel; 9, oil pump internal tooth; 10, lubrication channel; 11, mount pin; 12, oil pump external tooth; 13, oil pump cover; 14, petrol engine side cover; 15, fixing pin; 16, lower shake-changing arm; 17, plain cushion; 18, connecting rod; 19, bent axle; 20, shift fork; 21, lubrication hole first; 22, lubrication hole second; 23, piston; 24, back-up ring; 25, bearing; 26, isolation ward; 27, Oil-gas Separation chamber.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described further.

Because existing miniature gasoline engine exists lubricated inadequate problem, the invention provides the lubricating structure of following structure, comprise mount pin first 11, mount pin second 6, described mount pin 11 is positioned at petrol engine side cover 14, mount pin second 6 is positioned at petrol engine shell, described mount pin 11 is provided with plain cushion 17, cam wheel 8, oil pump cover 13, oil pump internal tooth 9, oil pump external tooth 12, in mount pin 11, be provided with lubrication channel 10, the cylinder body 1 of lubrication channel 10 correspondences is provided with lubrication hole first 21, on the mount pin 11 between plain cushion 17 and cam wheel 8, is provided with lubrication hole second 22; Described mount pin second 6 is provided with speed regulation gear 7, back-up ring 24.

The petrol engine of above-mentioned lubricating structure is installed, comprise cylinder body 1, casing 2, case lid 3, bent axle 19, connecting rod 18, piston 23, in casing 1, be provided with sump 5, it is characterized in that: the separate structure up and down that described cylinder body 1, casing 2, case lid 3 are the central axis along bent axle 19, described case lid 3 is provided with engine oil sensor 4, described bent axle 19 is installed on the assemblying body of cylinder body 1 and casing 2 by bearing 25, and the lower end of connecting rod 18 is provided with shift fork 20; Described lubricating structure is installed in side cover 14, mount pin second 6 is positioned at petrol engine shell, described mount pin 11 is positioned at petrol engine side cover 14, mount pin second 6 is positioned at petrol engine shell, described mount pin 11 is provided with plain cushion 17, cam wheel 8, oil pump cover 13, oil pump internal tooth 9, oil pump external tooth 12, in mount pin 11, be provided with lubrication channel 10, the cylinder body 1 of lubrication channel 10 correspondences is provided with lubrication hole first 21, on the mount pin 11 between plain cushion 17 and cam wheel 8, is provided with lubrication hole second 22; Described mount pin second 6 is provided with speed regulation gear 7, back-up ring 24; Described lubrication balance structure comprises respirating tube, isolation ward 26, Oil-gas Separation chamber 27, and described isolation ward 26 is connected by respirating tube with Oil-gas Separation chamber 27.

In use, by oil pipe, described lubricating structure is connected with sump 5, drive cam wheel 8 by bent axle 19, under the effect of cam wheel 8, drive under the effect of oil pump internal tooth 9, oil pump external tooth 12, machine oil is injected to upper end and the oil pump gear of motion assembly by lubrication channel 10, lubrication hole first 21, to reach the object of the each main movement component of sufficient lubrication.

Meanwhile, lubrication balance structure is also installed on the petrol engine that above-mentioned lubricating structure is installed, comprises respirating tube, isolation ward 26, Oil-gas Separation chamber 27, described isolation ward 26 is connected by respirating tube with Oil-gas Separation chamber 27.Lubrication balance structure can be guaranteed the normal work of petrol engine.

Claims (2)

1. the structure of the pressure lubrication for petrol engine, comprise mount pin first (11), mount pin second (6), described mount pin (11) is positioned at petrol engine side cover (14), mount pin second (6) is positioned at petrol engine shell, it is characterized in that: described mount pin (11) is provided with plain cushion (17), cam wheel (8), oil pump cover (13), oil pump internal tooth (9), oil pump external tooth (12), in mount pin (11), be provided with lubrication channel (10), the cylinder body (1) that lubrication channel (10) is corresponding is provided with lubrication hole first (21), on the mount pin (11) between plain cushion (17) and cam wheel (8), be provided with lubrication hole second (22), described mount pin second (6) is provided with speed regulation gear (7), back-up ring (24).
2. one kind is provided with the petrol engine of above-mentioned lubricating structure, comprise cylinder body (1), casing (2), case lid (3), bent axle (19), connecting rod (18), piston (23), in casing (1), be provided with sump (5), it is characterized in that: described cylinder body (1), casing (2), case lid (3) is the separate structure up and down along the central axis of bent axle (19), described case lid (3) is provided with engine oil sensor (4), described bent axle (19) is installed on by bearing (25) on the assemblying body of cylinder body (1) and casing (2), the lower end of connecting rod (18) is provided with shift fork (20), described petrol engine is provided with lubrication balance structure, lubricating structure is installed in side cover (14), mount pin second (6) is positioned at petrol engine shell, described mount pin (11) is positioned at petrol engine side cover (14), mount pin second (6) is positioned at petrol engine shell, described mount pin (11) is provided with plain cushion (17), cam wheel (8), oil pump cover (13), oil pump internal tooth (9), oil pump external tooth (12), in mount pin (11), be provided with lubrication channel (10), the cylinder body (1) that lubrication channel (10) is corresponding is provided with lubrication hole first (21), on the mount pin (11) between plain cushion (17) and cam wheel (8), be provided with lubrication hole second (22), described mount pin second (6) is provided with speed regulation gear (7), back-up ring (24), described lubrication balance structure comprises respirating tube, isolation ward (26), Oil-gas Separation chamber (27), and described isolation ward (26) is connected by respirating tube with Oil-gas Separation chamber (27).
CN201410212067.1A 2014-05-20 2014-05-20 Gasoline engine with pressure lubrication structure and lubrication structure of gasoline engine CN104018906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410212067.1A CN104018906A (en) 2014-05-20 2014-05-20 Gasoline engine with pressure lubrication structure and lubrication structure of gasoline engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410212067.1A CN104018906A (en) 2014-05-20 2014-05-20 Gasoline engine with pressure lubrication structure and lubrication structure of gasoline engine

Publications (1)

Publication Number Publication Date
CN104018906A true CN104018906A (en) 2014-09-03

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250273B1 (en) * 1998-07-22 2001-06-26 Honda Giken Kogyo Kabushiki Kaisha 4-cycle engine
CN102337945A (en) * 2011-10-15 2012-02-01 浙江乐恒动力科技有限公司 Lubrication device of engine
CN102562215A (en) * 2010-11-29 2012-07-11 Etg有限公司 Engine lubrication method
CN202417636U (en) * 2012-02-16 2012-09-05 重庆宗申通用动力机械有限公司 Lubricating mechanism of a gasoline engine
US20130074802A1 (en) * 2011-09-22 2013-03-28 Etg Limited Engine Lubrication Method
CN103321709A (en) * 2012-06-15 2013-09-25 苏州科瓴精密机械科技有限公司 Lubricating system for four-stroke engine
CN203835484U (en) * 2014-05-20 2014-09-17 山东华盛中天工程机械有限责任公司 Gasoline engine provided with pressure lubrication structure and lubrication structure of gasoline engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250273B1 (en) * 1998-07-22 2001-06-26 Honda Giken Kogyo Kabushiki Kaisha 4-cycle engine
CN102562215A (en) * 2010-11-29 2012-07-11 Etg有限公司 Engine lubrication method
US20130074802A1 (en) * 2011-09-22 2013-03-28 Etg Limited Engine Lubrication Method
CN102337945A (en) * 2011-10-15 2012-02-01 浙江乐恒动力科技有限公司 Lubrication device of engine
CN202417636U (en) * 2012-02-16 2012-09-05 重庆宗申通用动力机械有限公司 Lubricating mechanism of a gasoline engine
CN103321709A (en) * 2012-06-15 2013-09-25 苏州科瓴精密机械科技有限公司 Lubricating system for four-stroke engine
CN203835484U (en) * 2014-05-20 2014-09-17 山东华盛中天工程机械有限责任公司 Gasoline engine provided with pressure lubrication structure and lubrication structure of gasoline engine

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Application publication date: 20140903

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