CN102661183B - Oil circuit system of geared motor with external balance shaft - Google Patents

Oil circuit system of geared motor with external balance shaft Download PDF

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Publication number
CN102661183B
CN102661183B CN201210140218.8A CN201210140218A CN102661183B CN 102661183 B CN102661183 B CN 102661183B CN 201210140218 A CN201210140218 A CN 201210140218A CN 102661183 B CN102661183 B CN 102661183B
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oil
minute
circuit
hole
oil circuit
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Expired - Fee Related
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CN201210140218.8A
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CN102661183A (en
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田亚平
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Lifan Technology Group Co Ltd
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Lifan Industry Group Co Ltd
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Abstract

The invention discloses an oil circuit system of a geared motor with an external balance shaft. A basic oil circuit is arranged on a right crankshaft box; a first filter is arranged between an oil chamber and the basic oil circuit; a first oil chamber and a second oil chamber are encircled by the right crankshaft box and a right crankshaft box cover together; a filtering chamber, a vertically-upward main oil channel, a first oil sub-circuit and a second oil sub-circuit are arranged on the right crankshaft box cover; an engine oil filter is arranged in the filtering chamber, and the filtering chamber is sealed by a filter cover which is arranged outside the right crankshaft box cover; and a main oil hole, a first oil sub-hole and a second oil sub-hole are formed in the filter cover. After lubricating oil stored at the bottom of the crankshaft box flows through the first filter, the basic oil circuit, the first oil chamber, the main oil channel, the filtering chamber, the engine oil filter and the main oil hole, a part of the lubricating oil is supplied to a big head rolling needle bearing of a connecting rod and a piston cylinder hole through the first oil sub-hole and the first oil sub-circuit, and the other part of the lubricating oil is supplied to other motion frictional surfaces of an engine through the second oil sub-hole, the second oil sub-circuit and the second oil chamber.

Description

The oil-way system of the external gear engine of trunnion shaft
Technical field
The present invention relates to Motorcycle Engine Technology field, be specifically related to a kind of engine oil path system.
Background technique
Fig. 6, Figure 7 shows that the built-in gear engine of traditional trunnion shaft, its gear drive 7 are arranged between left crankcase 13 and right crankcase 1 (not shown).Its oil-way system is as shown in Fig. 5, Fig. 6, Fig. 7, from each oil circuit of motor, get back to the lubricant oil in the oil pocket 14 of engine crankcase bottom, after filtering, the first filter cleaner 15 enters basic oil circuit, flow into again working connection 12, basic oil circuit is arranged on right crankcase 1, by oil pump 16, oil inlet hole 1a and oil outlet 1b, formed, between oil pocket 14 and basic oil circuit, be provided with the first filter cleaner 15.Working connection 12 is the combination oil circuits that jointly surrounded by right crankcase 1 and right crankcase cover 2, only has to the secondary filter of the lubricant oil process disc 11 of bent axle 9,10 minutes oil circuits of piston, and all the other minute oil circuit all only passed through once and filtered.The filter screen once filtering is 180 orders, the filter screen of secondary filter is 300 orders, only unclean through the lubricant oil once filtering, in oil, there is tiny metal granule, each kinetic friction pair is had to certain damage, can cause rocking arm and the wearing and tearing of cam rubbing surface, the spot corrosion of gear pair rubbing surface, engine noise is increased, affect the working life of motor.
In addition, because gear drive 7 is arranged between left crankcase 13 and right crankcase 1, if find again that after engine assembly has assembled the engagement noise of gear drive 7 is large, while causing this gear driving pair to change, ressemble after must dissecting engine assembly completely.Therefore, engagement to the dimensional accuracy of each part and gear driving pair is had relatively high expectations, and existing crankcase and balance Gear Production technique are controlled bad to the crank block bearing mounting hole of left and right crankcase and the centre distance size of balance shaft support bearing mounting hole and the accuracy of manufacturing of gear pair, cause the secondary noise of engine gear larger, the balanced axle engine general assembly amount of reprocessing is large.
The external gear engine of trunnion shaft that gear drive 7 is arranged between right crankcase 1 and right crankcase cover 2 has just solved the problems referred to above well, when the engagement noise of finding gear drive 7 is large, only need to open right crankcase cover 2 just can change gear driving pair.But, because gear drive is external, on the structure generation of right crankcase 1 and right crankcase cover 2 impact, need to redesign oil-way system, consider whole lubricant oil of each minute oil circuit of motor to carry out secondary filter simultaneously, to reduce the noise of motor, improve the working life of motor
Summary of the invention
The object of the invention is to solve the oil-way system Layout Problem of the external gear engine of a kind of trunnion shaft, improve the turbidity test of lubricant oil in oil-way system, thus the working life that reduces engine noise, improves motor.
For this reason, the technical solution adopted in the present invention is: the oil-way system of the external gear engine of a kind of trunnion shaft, comprise right crankcase, right crankcase cover, be arranged on the basic oil circuit on right crankcase, be arranged on the oil pocket of crankcase bottom, and be arranged on the first filter cleaner between basic oil circuit and fuel tank, key is: described right crankcase and right crankcase cover surround first jointly, the second oil pocket, the first oil pocket is positioned at the below of basic oil circuit, the second oil pocket is positioned at the top of crankcase, at right crankcase, cover and be provided with filtering cavity, main oil gallery straight up, first minute oil circuit and second minute oil circuit, the in-built organic oil filter cleaner of described filtering cavity also seals by the strainer cover being contained in outside right crankcase cover, on described strainer cover, be provided with main oil-hole, the first minute oilhole communicating with first minute oil circuit, the second minute oilhole communicating with second minute oil circuit, from each oil circuit of motor, get back to lubricant oil in oil pocket after the first filter cleaner → basic oil circuit → the first oil pocket → main oil gallery → filtering cavity → oil filter → main oil-hole, part lubricant oil was through first minute oilhole → the first minute oil circuit, for connnecting rod big end needle bearing and piston cylinder hole provide lubricant oil, another part lubricant oil is through second minute oilhole → the second minute oil circuit → the second oil pocket, for all the other kinetic friction surfaces of motor provide lubricant oil.
As this programme further preferably, oil outlet and the oil inlet hole of described basic oil circuit be arranged in parallel, in not changing the basic oil circuit of motor, under the prerequisite of oil inlet hole, be arranged in parallel oil inlet hole and oil outlet, so that process.
The main oil-hole of described strainer cover is parallel with the axis of bent axle, in the inner side of strainer cover, be provided with two cylinder boss, described first minute oilhole opened therein on a cylinder boss, and within second minute, oilhole is opened on another one cylinder boss, to optimize the structure of strainer cover.
The present invention utilize in motor balance shaft gear driving mechanism from built-in become external, the chance that need to redesign right crankcase and right crankcase cover, oil-way system to motor redesigns, and realized motor and all divided the lubricant oil of oil circuit all to experience twice filtration, solved the cleanliness issues of engine lubricating oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is that the P of strainer cover in Fig. 2 is to view.
Fig. 5 is the C-C sectional view of Fig. 1, the E-E sectional view of Fig. 6.
Fig. 6 is the structural representation of background technique.
Fig. 7 is the D-D sectional view of Fig. 6.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
The oil-way system of the external gear engine of trunnion shaft as Figure 1-5, is comprised of right crankcase 1, right crankcase cover 2, oil filter 3, strainer cover 4, bent axle 9, piston 10, the first filter cleaner 15 etc.Right crankcase 1 and left crankcase 13 have formed crankcase jointly, in the bottom of crankcase, are provided with oil pocket 14, and lubricant oil is stored in oil pocket 14.Basic oil circuit is arranged on right crankcase 1, oil pump 16, oil inlet hole 1a and oil outlet 1b, consists of, and between oil pocket 14 and basic oil circuit, is provided with the first filter cleaner 15.Under the effect of oil pump 16, lubricant oil is from the oil pocket 14 first filter cleaner 15 → oil inlet hole 1a → oil outlet 1b that flows through successively, the first 15 pairs of filter cleaners lubricant oil carries out prefiltration, and this structure is identical with the basic oil circuit of the oil-way system of the built-in gear engine of trunnion shaft of introducing in background technique.
Gear drive 7 is arranged between right crankcase 1 and right crankcase cover 2, and variation has correspondingly occurred its oil-way system.Right crankcase 1 and right crankcase cover 2 surround the below that the first oil pocket 5 and the second oil pocket 6, the first oil pockets 5 are positioned at basic oil circuit jointly, and the second oil pocket 6 is positioned at the top of crankcase, and the first oil pocket 5 and the second oil pocket 6 are two independent oil pockets that arrange.On right crankcase cover 2, be provided with filtering cavity 2a, main oil gallery 2b straight up, first minute oil circuit 2c and second minute oil circuit 2d.Oil filter 3 is contained in filtering cavity 2a, and strainer cover 4 is contained in outside right crankcase cover 2, between strainer cover 4 and right crankcase cover 2, seal ring 8 is housed, and 4 couples of filtering cavity 2a of strainer cover seal.The second minute oilhole 4c that be provided with main oil-hole 4a, the first minute oilhole 4b communicating with first minute oil circuit 2c on strainer cover 4, communicates with second minute oil circuit 2d.
As shown by arrows in FIG., from each oil circuit of motor, get back to lubricant oil in crankcase bottom oil pocket 14 after the first filter cleaner 15 → basic oil circuit → the first oil pocket 5 → main oil gallery 2b → filtering cavity 2a → oil filter 3 → main oil-hole 4a, part lubricant oil was through first minute oilhole 4b → the first minute oil circuit 2c, for connnecting rod big end needle bearing and piston cylinder hole provide lubricant oil, another part lubricant oil is through second minute oilhole 4c → the second minute oil circuit 2d → the second oil pocket 6, for all the other kinetic friction surfaces of motor provide lubricant oil.Circulation in this way, has formed the oil-way system that motor seals.
As Fig. 1, oil outlet 1b and the oil inlet hole 1a of basic oil circuit preferably be arranged in parallel, so that process oilhole 1b and oil inlet hole 1a.
In conjunction with Fig. 2-Fig. 4, the main oil-hole 4a of strainer cover 4 is parallel with the axis of bent axle 9, is provided with two cylinder boss 4d in the inner side of strainer cover 4, first minute oilhole 4b opens a cylinder boss 4d therein and goes up, and within second minute, oilhole 4c opens on another one cylinder boss 4d.

Claims (3)

1. the oil-way system of the external gear engine of trunnion shaft, comprise right crankcase (1), right crankcase cover (2), be arranged on the basic oil circuit on right crankcase (1), be arranged on the oil pocket (14) of crankcase bottom, and be arranged on the first filter cleaner (15) between basic oil circuit and oil pocket (14), it is characterized in that: described right crankcase (1) and right crankcase cover (2) surround first jointly, the second oil pocket (5, 6), the first oil pocket (5) is positioned at the below of basic oil circuit, the second oil pocket (6) is positioned at the top of crankcase, on right crankcase cover (2), be provided with filtering cavity (2a), main oil gallery straight up (2b), first minute oil circuit (2c) and second minute oil circuit (2d), the in-built organic oil filter cleaner of described filtering cavity (2a) (3), and by being contained in outer strainer cover (4) sealing of right crankcase cover (2), on described strainer cover (4), be provided with main oil-hole (4a), with first minute first minute oilhole (4b) communicating of oil circuit (2c), with second minute second minute oilhole (4c) communicating of oil circuit (2d)), from each oil circuit of motor, get back to the interior lubricant oil of oil pocket (14) after the first filter cleaner (15) → basic oil circuit → the first oil pocket (5) → main oil gallery (2b) → filtering cavity (2a) → oil filter (3) → main oil-hole (4a), part lubricant oil was through first minute oilhole (4b) → first minute oil circuit (2c), for connnecting rod big end needle bearing and piston cylinder hole provide lubricant oil, another part lubricant oil is through second minute oilhole (4c) → second minute oil circuit (2d) → second oil pocket (6), for all the other kinetic friction surfaces of motor provide lubricant oil.
2. according to the oil-way system of the external gear engine of trunnion shaft claimed in claim 1, it is characterized in that: the oil outlet of described basic oil circuit (1b) be arranged in parallel with oil inlet hole (1a).
3. according to the oil-way system of the external gear engine of trunnion shaft described in claim 1 or 2, it is characterized in that: the main oil-hole (4a) of described strainer cover (4) is parallel with the axis of bent axle (9), in the inner side of strainer cover (4), be provided with two cylinder boss (4d), described first minute oilhole (4b) to open therein a cylinder boss (4d) upper, second minute oilhole (4c) open on another one cylinder boss (4d).
CN201210140218.8A 2012-05-08 2012-05-08 Oil circuit system of geared motor with external balance shaft Expired - Fee Related CN102661183B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210140218.8A CN102661183B (en) 2012-05-08 2012-05-08 Oil circuit system of geared motor with external balance shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210140218.8A CN102661183B (en) 2012-05-08 2012-05-08 Oil circuit system of geared motor with external balance shaft

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CN102661183A CN102661183A (en) 2012-09-12
CN102661183B true CN102661183B (en) 2014-02-26

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111535899A (en) * 2020-05-08 2020-08-14 隆鑫通用动力股份有限公司 Labyrinth type lubricating oil three-stage filtering and purifying system of engine and engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2707972Y (en) * 2004-03-17 2005-07-06 重庆力帆实业(集团)有限公司 Water-cooled motorcycle engine
CN201367927Y (en) * 2008-12-02 2009-12-23 兰青 Gasoline engine universal for four-stroke forced lubrication
CN201461847U (en) * 2009-06-29 2010-05-12 重庆建设摩托车股份有限公司 Structure of balance shaft driving device
CN101907005A (en) * 2010-06-01 2010-12-08 力帆实业(集团)股份有限公司 Engine lubricant passage
CN102052193A (en) * 2011-01-30 2011-05-11 力帆实业(集团)股份有限公司 Right crankcase cover of engine
CN201953505U (en) * 2011-04-08 2011-08-31 力帆实业(集团)股份有限公司 Lubricating oil line for right crankcase of engine
CN202690157U (en) * 2012-05-08 2013-01-23 力帆实业(集团)股份有限公司 Oil path system of external gear engine of balance shaft

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2707972Y (en) * 2004-03-17 2005-07-06 重庆力帆实业(集团)有限公司 Water-cooled motorcycle engine
CN201367927Y (en) * 2008-12-02 2009-12-23 兰青 Gasoline engine universal for four-stroke forced lubrication
CN201461847U (en) * 2009-06-29 2010-05-12 重庆建设摩托车股份有限公司 Structure of balance shaft driving device
CN101907005A (en) * 2010-06-01 2010-12-08 力帆实业(集团)股份有限公司 Engine lubricant passage
CN102052193A (en) * 2011-01-30 2011-05-11 力帆实业(集团)股份有限公司 Right crankcase cover of engine
CN201953505U (en) * 2011-04-08 2011-08-31 力帆实业(集团)股份有限公司 Lubricating oil line for right crankcase of engine
CN202690157U (en) * 2012-05-08 2013-01-23 力帆实业(集团)股份有限公司 Oil path system of external gear engine of balance shaft

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Address after: 400037 Chongqing city Beibei District caijiagang Zhen Tong Xing Industrial Park Fengqi Road No. 16

Patentee after: Lifan Industry (Group) Co.,Ltd.

Address before: 400037 Chongqing city Shapingba District No. 60 Zhangjiawan Bridge

Patentee before: Lifan Industry (Group) Co.,Ltd.

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140226