CN203742699U - Low-damping low-noise vertical single-cylinder air-cooled diesel engine - Google Patents
Low-damping low-noise vertical single-cylinder air-cooled diesel engine Download PDFInfo
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- CN203742699U CN203742699U CN201420144143.5U CN201420144143U CN203742699U CN 203742699 U CN203742699 U CN 203742699U CN 201420144143 U CN201420144143 U CN 201420144143U CN 203742699 U CN203742699 U CN 203742699U
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- oil
- journal
- gear
- oil film
- diesel engine
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Abstract
The utility model discloses a low-damping low-noise vertical single-cylinder air-cooled diesel engine. A crankshaft component comprises an output end journal, a timing gear journal, a connecting bar journal, a vertical oil inlet passage, an oblique oil passage and an oil discharge hole, the vertical oil inlet passage is formed in the output end journal, the oil discharge hole is formed in the connecting bar shaft journal and communicated with the vertical oil inlet passage through the oblique oil passage, an oil film forming slot is formed in the outer circular surface of each of the connecting bar journal and the output end journal, and a gear lubricating oil passage is formed in the timing gear journal and communicated with the oblique oil passage. Because the oil film forming slot is opened in the outer circular surface of each of the connecting bar journal and the output end journal, the inside of a sliding bearing fitting pair is lubricated more completely, and the crankshaft rotating resistance is reduced; the gear lubricating oil passage enables the gear engagement noise to be lowered, enables the friction between gears to be delayed, enables the engine temperature to be lowered, and enables the service life of a transmission gear group to be prolonged.
Description
Technical field:
The utility model relates to a kind of single-cylinder air-cooled diesel engine, relates in particular to single-cylinder vertical air-cooled diesel engine.
Background technique:
In existing single-cylinder vertical air-cooled diesel engine, between crank-shaft link neck and connecting rod bearing shell, lubrication problem between the sliding bearing that the bearing journal of crankshaft output end and lateral ends cover is the main cause that causes whole diesel engine resistance to motion, can cause producing and stinging watt because losing oil when serious.Lubrication problem between diesel engine middle gear group will directly affect the rotational noise of diesel engine.In existing single-cylinder air-cooled diesel engine, be all provided with oil pump, oil pump is arranged on lateral ends and covers, on bent axle, be provided with tilting oil leab, the filler opening of oil leab is arranged on output terminal axle journal, oil leab passes to rod journal, on rod journal, have and draw oilhole, the oilhole that draws on rod journal communicates with oil leab, oil pump is extracted the oil groove of machine oil from output terminal axle journal out and is entered oil leab in body, lubrication hole from rod journal flows out again, thereby the revolute that is slidably matched between rod journal and connecting rod bearing shell is carried out to pressure lubrication.But this lubricating structure is unfavorable for the formation of oil film, the revolute frictional resistance that is slidably matched at output terminal axle journal and rod journal place is larger, affects the output of diesel engine useful horsepower.Simultaneously, in existing single-cylinder vertical air-cooled diesel engine, between the driving gear set being driven by crankshaft timing gear, rely on splash lubrication, when diesel engine and running mechanism are when supporting, because diesel engine can constantly change position, cause the lubricant oil storage in the end cap of side often to have fluctuation, make splash lubrication unstable, can cause like this gear tooth noise large, between gear, friction velocity is fast, machine temperature is higher, and the working life of driving gear set is short.
Model utility content:
The purpose of this utility model is to provide a kind of low resistance low noise single-cylinder vertical air-cooled diesel engine, it can form low resistance oil film between the output terminal axle journal of bent axle and sliding bearing, rod journal and connecting rod bearing shell, further improve the pressure lubrication condition of the revolute that is slidably matched, reduce running resistance, meanwhile, be also convenient to crankshaft timing gear transmission group to carry out pressure lubrication.Thereby guarantee the running resistance of crankshaft component, reduce the engagement noise of gear transmission group.
The utility model is to realize by following technical solution above-mentioned purpose.
A kind of low resistance low noise single-cylinder vertical air-cooled diesel engine, comprise crankshaft component, linkage component, body, gear end cap, driving gear set and oil pump, the flywheel end of crankshaft component is arranged on body by rolling bearing, the power take-off of crankshaft component is arranged on gear end by sliding bearing and covers, crankshaft component is free to rotate with respect to body and gear end cap, the stub end of linkage component is hinged by the crank of bearing shell and crankshaft component, crankshaft component comprises output terminal axle journal, timing gear axle journal, rod journal, vertical oil input channel, tilting oil duct and oil outlet, vertically oil input channel is arranged on output terminal axle journal, on rod journal, be provided with oil outlet, oil outlet interlinks by tilting oil duct and vertical oil input channel, it is characterized in that: on rod journal, edge is circumferentially provided with 2～8 oil outlets equably, outer round surface at rod journal is provided with oil film grooving, oil film grooving interlinks by oil outlet and tilting oil duct, oil film grooving is positioned at the center of rod journal vertically, the axial length of oil film grooving is less than the axial length of rod journal, at the axial two ends of oil film grooving, be provided with gear tank deck rank, on output terminal axle journal, vertically the two ends of oil input channel are also provided with oil film grooving, are provided with gear lubrication oil duct on timing gear axle journal, and gear lubrication oil duct and tilting oil duct interlink.
Further, the lateral cross section of described oil film grooving is shaped as " soup ladle " shape, the curved surface kettleholder that stores the spoon pond of lubricant oil and be convenient to form oil film, consists of, and the curved surface kettleholder of oil film grooving is towards sense of rotation.
Further, on rod journal, edge is circumferentially provided with four oil outlets equably.
Further, gear lubrication oil duct offers in the teeth groove of circumferential position in crankshaft timing gear.
Further, the axial length that is arranged on the oil film grooving on rod journal is less 4～6 millimeters than the axial length of rod journal, and the axial length of axial length specific output end journal that is arranged on the oil film grooving on output terminal axle journal is little 4～6 millimeters.
On outer round surface due to the rod journal at bent axle, offered oil film grooving, oil film grooving interlinks by oil outlet and tilting oil duct, and oil film grooving is positioned at the center of rod journal vertically, on output terminal axle journal, vertically the two ends of oil input channel are also provided with oil film grooving, like this, the oil film grooving of the pressure lubrication oil of extracting out from oil pump from output terminal axle journal enters in vertical oil input channel, enter again oil film grooving on the outer round surface that tilting oil duct flows to respectively rod journal and the gear lubrication oil duct on timing gear axle journal, the offering of oil film grooving is more conducive to the formation of lubricant film in sliding bearing matching pair, make lubricated more abundant, thereby reduce the rotational resistance of bent axle, realize the low resistance of diesel engine operation, the driving gear set driving for crankshaft timing gear of offering of gear lubrication oil duct realizes pressure lubrication technical support is provided, and can reduce the noise of gear engagement, delay to rub between gear, and reduction machine temperature, the working life of prolongation driving gear set.
Accompanying drawing explanation:
Fig. 1 is the structural representation of single-cylinder vertical air-cooled diesel engine;
Fig. 2 is the structural representation of bent axle;
Fig. 3 is A-A sectional view in Fig. 2;
Fig. 4 is B-B sectional view in Fig. 2;
In figure: 1-crankshaft component; 2-linkage component; 3-body; 4-gear end cap; 5-driving gear set; 6-oil pump; 7-rolling bearing; 8-sliding bearing; 11-output terminal axle journal; 12-timing gear axle journal; 13-rod journal; The vertical oil input channel of 14-; The tilting oil duct of 15-; 16-oil outlet; 17-oil film grooving; 171-spoon pond; 172-curved surface kettleholder; 18-gear lubrication oil duct; 19-crankshaft timing gear.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is done to further full and accurate explanation:
Embodiment 1: a kind of low resistance low noise single-cylinder vertical air-cooled diesel engine, as shown in Figure 1 to 4, comprise crankshaft component 1, linkage component 2, body 3, gear end cap 4, driving gear set 5 and oil pump 6, the flywheel end of crankshaft component 1 is arranged on body 3 by rolling bearing 7, the power take-off of crankshaft component 1 is arranged on gear end cap 4 by sliding bearing 8, crankshaft component 1 is free to rotate with respect to the conjunction of body 3 and gear end cap 4, the stub end of linkage component 2 is hinged by the rod journal 13 of bearing shell and crankshaft component 1, crankshaft component 1 comprises output terminal axle journal 11, timing gear axle journal 12, rod journal 13, vertical oil input channel 14, tilting oil duct 15 and oil outlet 16, vertically oil input channel 14 is arranged on output terminal axle journal 11, on rod journal 13, edge is circumferentially provided with four oil outlets 16 equably, oil outlet 16 interlinks by tilting oil duct 15 and vertical oil input channel 14, outer round surface at rod journal 13 is provided with oil film grooving 17, oil film grooving 17 interlinks by oil outlet 16 and tilting oil duct 15, oil film grooving 17 is axially being positioned at rod journal 13 center, at the axial two ends of oil film grooving 17, be provided with the gear tank deck rank of 2 millimeters, on output terminal axle journal 11, vertically the two ends of oil input channel 14 are also provided with oil film grooving 17, are provided with gear lubrication oil duct 18 on timing gear axle journal 12, and gear lubrication oil duct 18 interlinks with tilting oil duct 15.
In this example, the lateral cross section of described oil film grooving 17 is shaped as " soup ladle " shape, the curved surface kettleholder 172 that stores the spoon pond 171 of lubricant oil and be convenient to form oil film, consists of, and the curved surface kettleholder 172 of oil film grooving 17 is towards sense of rotation.
In the teeth groove of offering position alignment crankshaft timing gear 19 of described gear lubrication oil duct 18.
Mode of execution of the present utility model is a lot, be arranged on the quantity of the oil film grooving 17 on rod journal 13, the lateral cross section shape of oil film grooving 17, and the axial length of oil film grooving 17 can change, as long as it is all right to contribute to form more swimmingly oil lamella between connecting rod bearing shell and rod journal 13.This rule is applicable equally for the oil film grooving 17 of offering on output terminal axle journal 11.The offering position and also can change of gear lubrication oil duct 18, offering principle is the tooth root position that gear lubrication oil duct 18 can lead to crankshaft timing gear 19.
Claims (5)
1. a low resistance low noise single-cylinder vertical air-cooled diesel engine, comprise crankshaft component (1), linkage component (2), body (3), gear end cap (4), driving gear set (5) and oil pump (6), the flywheel end of crankshaft component (1) is arranged on body (3) by rolling bearing (7), the power take-off of crankshaft component (1) is arranged on gear end cap (4) by sliding bearing (8), crankshaft component (1) is free to rotate with respect to body (3) and gear end cap (4), the stub end of linkage component (2) is hinged by the crank of bearing shell and crankshaft component (1), crankshaft component (1) comprises output terminal axle journal (11), timing gear axle journal (12), rod journal (13), vertical oil input channel (14), tilting oil duct (15) and oil outlet (16), vertically oil input channel (14) is arranged on output terminal axle journal (11), on rod journal (13), be provided with oil outlet (16), oil outlet (16) interlinks by tilting oil duct (15) and vertical oil input channel (14), it is characterized in that: upper along being circumferentially provided with equably 2～8 oil outlets (16) at rod journal (13), outer round surface at rod journal (13) is provided with oil film grooving (17), oil film grooving (17) interlinks by oil outlet (16) and tilting oil duct (15), oil film grooving (17) is positioned at the center of rod journal (13) vertically, the axial length of oil film grooving (17) is less than the axial length of rod journal (13), at the axial two ends of oil film grooving (17), be provided with gear tank deck rank, two ends at the upper vertical oil input channel (14) of output terminal axle journal (11) are also provided with oil film grooving (17), are provided with gear lubrication oil duct (18) on timing gear axle journal (12), and gear lubrication oil duct (18) interlinks with tilting oil duct (15).
2. low resistance low noise single-cylinder vertical air-cooled diesel engine according to claim 1, it is characterized in that: the lateral cross section of described oil film grooving (17) is shaped as " soup ladle " shape, the curved surface kettleholder (172) that stores the spoon pond (171) of lubricant oil and be convenient to form oil film, consist of, the curved surface kettleholder (172) of oil film grooving (17) is towards sense of rotation.
3. low resistance low noise single-cylinder vertical air-cooled diesel engine according to claim 1, is characterized in that: upper along being circumferentially provided with equably four oil outlets (16) at rod journal (13).
4. low resistance low noise single-cylinder vertical air-cooled diesel engine according to claim 1, is characterized in that: the offering in the teeth groove of circumferential position in crankshaft timing gear (19) of gear lubrication oil duct (18).
5. low resistance low noise single-cylinder vertical air-cooled diesel engine according to claim 1, it is characterized in that: the axial length that is arranged on the oil film grooving (17) on rod journal (13) is less 4～6 millimeters than the axial length of rod journal (13), the axial length of axial length specific output end journal (11) that is arranged on the oil film grooving (17) on output terminal axle journal (11) is little 4～6 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144143.5U CN203742699U (en) | 2014-03-27 | 2014-03-27 | Low-damping low-noise vertical single-cylinder air-cooled diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144143.5U CN203742699U (en) | 2014-03-27 | 2014-03-27 | Low-damping low-noise vertical single-cylinder air-cooled diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742699U true CN203742699U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420144143.5U Expired - Fee Related CN203742699U (en) | 2014-03-27 | 2014-03-27 | Low-damping low-noise vertical single-cylinder air-cooled diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259596A (en) * | 2019-06-21 | 2019-09-20 | 隆鑫通用动力股份有限公司 | Engine |
| CN116025465A (en) * | 2023-03-31 | 2023-04-28 | 无锡华源凯马发动机有限公司 | Small-sized portable single-cylinder air-cooled diesel engine |
-
2014
- 2014-03-27 CN CN201420144143.5U patent/CN203742699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259596A (en) * | 2019-06-21 | 2019-09-20 | 隆鑫通用动力股份有限公司 | Engine |
| CN116025465A (en) * | 2023-03-31 | 2023-04-28 | 无锡华源凯马发动机有限公司 | Small-sized portable single-cylinder air-cooled diesel 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: 20140730 Termination date: 20180327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |