CN103032129A - Concealed type single-cylinder engine body lubrication circuit structure - Google Patents
Concealed type single-cylinder engine body lubrication circuit structure Download PDFInfo
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- CN103032129A CN103032129A CN2013100158631A CN201310015863A CN103032129A CN 103032129 A CN103032129 A CN 103032129A CN 2013100158631 A CN2013100158631 A CN 2013100158631A CN 201310015863 A CN201310015863 A CN 201310015863A CN 103032129 A CN103032129 A CN 103032129A
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Abstract
The invention relates to a concealed type single-cylinder engine body lubrication circuit structure which comprises a cylinder block (1), a crank case (2), a bearing cap (3), an engine seat (4), a flywheel housing (5) and a transitional oil pipe (6). According to the invention, the flywheel housing mounted at the rear end of the machine body is taken as a lubricant distribution mechanism; lubrication circuits and friction pairs distributed on the cylinder block, the crank case, the engine seat and the bearing cap are combined effectively through a reliable connection method, so that a sealed hidden lubrication circuit system is formed; lubricant with pressure enters from an opening; and the friction pairs achieve the integral effect of reaching every aspect of a matter. According to the invention, a plurality of main oil ducts are arranged, and a synchronous oil supply method is adopted, so that the flow rate and pressure supply of lubricant at the parts of the friction pairs can be ensured effectively; the lubrication circuit adopts hidden concealed oil duct structures completely, so that the integral arrangement is ordered, and the integration degree is high; and a seal ring is used for sealing, so that the operation is reliable, the experiment environment is good, and machine oil pollution can be avoided.
Description
Technical field
The invention belongs to the lubricated field of single cylinder engine, be specifically related to a kind of recessive type single cylinder engine body lubricating oil channel structures.
Background technique
Single cylinder engine is the basic platform that carries out the research of motor overall performance, and generally its housing construction is the multiple use that series model is satisfied in modular design, and concrete structure comprises cylinder block, crankcase, bearing cap, support, transmission case, flywheel casing etc.Differ because body modular arrangement and bolted mode cause the single cylinder engine friction pair to distribute, it is large that the combined lubrication oil circuit connects difficulty, the situation of structure relative complex.Generally speaking, directly lead to the lubricated friction pair of needs in order usually to adopt for simplicity auxiliary oil pipe, each modular structure of body is simplified, easily manufactured, oil cake arrange is random, and flow and pressure can effectively be guaranteed.But simple oil cake arrange must bring many disadvantages, and staggered such as the whole oil pipe of single cylinder engine, it is messy to distribute, and sealed interface is numerous, and the oil seepage phenomenon takes place frequently, and on-the-spot seriously polluted, flow and the pressure loss are large.The long time test complete machine oscillation causes the oil pipe vibration, and reliability decrease has the bad hidden dangers such as the complete machine of impact friction lubricating performance.
Summary of the invention
Technical problem to be solved by this invention provides a kind of recessive type single cylinder engine body lubricating oil channel structures, can solve oil circuit and be interspersed, oil seepage, with serious pollution technical problem.
Technological scheme of the present invention: a kind of recessive type single cylinder engine body lubricating oil channel structures, it comprises cylinder block 1, crankcase 2, bearing cap 3, support 4, flywheel casing 5 and transition oil pipe 6, described cylinder block 1, crankcase 2, bearing cap 3, support 4 and flywheel casing 5 are respectively the standalone module structure, cylinder block 1 and crankcase 2, crankcase 2 and bearing cap 3, bearing cap 3 and support 4, support 4 is connected by stud respectively with flywheel casing 5, be provided with main oil gallery 7 on the crankcase 2, main oil gallery 7 front ends are communicated with transmission case, the rear end is connected with distribution of lubrication oil oilhole 21 on being arranged on flywheel casing 5, main oil gallery 7 laterally communicates with horizontal oil duct 17, it is stifled that one end of horizontal oil duct 17 is set to technique, the other end is connected with transition oil pipe 6, the two ends of transition oil pipe 6 are provided with radial seal groove, the lower end connection bearing lid 3 of transition oil pipe 6, bearing cap 3 is provided with main bearing hole 10, the upper end of main oil gallery 7 communicates with distribution oil duct 19, be provided with trunnion shaft main oil gallery 8 on the support 4,9, trunnion shaft main oil gallery 8,9 front end is connected with transmission case, rear end and the distribution of lubrication oil oilhole 22 that is arranged in the flywheel casing 5,23 are connected, trunnion shaft main oil gallery 8,9 laterally respectively with one-level equalizer bearing hole 11,13 communicate, one-level equalizer bearing hole 11,13 by vertical oil duct 15,16 respectively with secondary equalizer bearing hole 14,12 connect.
Be provided with complete machine oil inlet hole 20 on the described flywheel casing 5, main oil gallery distribution of lubrication oil oilhole 21, trunnion shaft oil duct distribution of lubrication oil oilhole 22,23, be interconnected by two horizontal oil pipes and a vertical oil pipe between above-mentioned each oilhole, each oil pipe is cast in the flywheel casing back.
The present invention compared with prior art has following beneficial effect: recessive type single cylinder engine body lubricating oil circuit takes into full account the pressure loss to the adverse effect of high-mechanic friction pair, adopt the setting of many main oil gallerys, the method of fuel feeding has effectively guaranteed friction pair position flow of lubrication and pressure supply synchronously; This lubricating oil path all adopts concealed dark oil channel structure, and integral arrangement is orderly, and integrated degree is high; The seal ring sealing, reliable operation, experimental enviroment is good, has avoided oil pollution; Each intermodule plane contact of body, easy for installation, it is reliable that oil circuit is connected; The supply of oil-way system lubricant oil accesses flatly, makes things convenient for test room's line arrangement, has improved the adaptability of single cylinder engine complete machine; Recessive type single cylinder engine body lubricating oil circuit has kept putting fuel system on the multi-cylinder complete machine main bearing hole, makes trystate truer, and lubricant film obtains reasonable layout, can effectively examine and the bearing strength of verifying main axle bush.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of flywheel casing among Fig. 1.
Concrete mode of execution
The present invention is described in further detail below in conjunction with accompanying drawing: a kind of recessive type single cylinder engine body lubricating oil channel structures, it comprises cylinder block 1, crankcase 2, bearing cap 3, support 4, flywheel casing 5 and transition oil pipe 6, described cylinder block 1, crankcase 2, bearing cap 3, support 4 and flywheel casing 5 are respectively the standalone module structure, cylinder block 1 and crankcase 2, crankcase 2 and bearing cap 3, bearing cap 3 and support 4, support 4 is connected by stud respectively with flywheel casing 5, be provided with main oil gallery 7 on the crankcase 2, main oil gallery 7 front ends are communicated with transmission case, the rear end is connected with distribution of lubrication oil oilhole 21 on being arranged on flywheel casing 5, main oil gallery 7 laterally communicates with horizontal oil duct 17, it is stifled that one end of horizontal oil duct 17 is set to technique, the other end is connected with transition oil pipe 6, the two ends of transition oil pipe 6 are provided with radial seal groove, the lower end connection bearing lid 3 of transition oil pipe 6, bearing cap 3 is provided with main bearing hole 10, the upper end of main oil gallery 7 communicates with distribution oil duct 19, be provided with trunnion shaft main oil gallery 8 on the support 4,9, trunnion shaft main oil gallery 8,9 front end is connected with transmission case, rear end and the distribution of lubrication oil oilhole 22 that is arranged in the flywheel casing 5,23 are connected, trunnion shaft main oil gallery 8,9 laterally respectively with one-level equalizer bearing hole 11,13 communicate, one-level equalizer bearing hole 11,13 by vertical oil duct 15,16 respectively with secondary equalizer bearing hole 14,12 connect.
Be provided with complete machine oil inlet hole 20 on the described flywheel casing 5, main oil gallery distribution of lubrication oil oilhole 21, trunnion shaft oil duct distribution of lubrication oil oilhole 22,23, be interconnected by two horizontal oil pipes and a vertical oil pipe between above-mentioned each oilhole, each oil pipe is cast in the flywheel casing back.
As shown in Figure 1: crankcase 2 arranges main oil gallery 7, the through-hole structure that it connects for front and back.Main oil gallery 7 front ends lead to the pressure lubrication that transmission case guarantees transmission system; The rear end connects the distribution of lubrication oil oilhole 21 in the flywheel casing 5, obtains thus the pressure lubrication oil supplying; Crankcase 2 and flywheel casing 5 are for bolt is connected, and main oil gallery is O type rubber seal rings for seal in conjunction with end face; Main oil gallery 7 communicates with special-purpose horizontal oil duct 17 at each dividing plate place of crankcase, and horizontal oil duct 17 1 ends block with technique and close, and the other end connects transition oil pipe 6.Radial seal groove is offered at transition oil pipe 6 two ends, and the O rubber seal is installed, and is tightly connected the pressure lubrication oil injection main bearing hole 10 of main oil gallery 7 by the piston type with crankcase 2 and bearing cap 3.On place the bearing cap 3 on the support 4 to utilize main-bearing stud to be connected with it.Main oil gallery 7 on the crankcase 2 upwards communicates with distribution oil duct 19 in place, and distribution oil duct 19 is divided into two sections, and one section is arranged on the crankcase 2, and another section is on cylinder block 1.Two sections oil duct transition utilize the end face seal with elastometic washer, and cylinder block 1 then is connected for bolt with crankcase 2.Distribution oil duct 19 is middle through the camshaft bearing hole and upwards for being installed on the distribution rocking arm fuel feeding on the cylinder head.Oil return then utilizes the Action of Gravity Field of lubricant oil, naturally flows into the single cylinder engine oil sump through spill port.Main oil gallery 7 last tasks are exactly to be the piston cooling nozzle fuel feeding, and this nozzle is installed and the main oil gallery below, is generally valve class mechanism.
Support 4 is owing to the layout reason of left and right sides trunnion shaft has been offered left and right sides trunnion shaft main oil gallery 8,9.This oil duct is the front and back through-hole structure, and front end utilizes transmission case to carry out the end face seal with elastometic washer, and the rear end is connected with distribution of lubrication oil oilhole 22,23 in the flywheel casing 5 respectively.Flywheel casing 5 utilizes bolt to be connected with support 4, and the rubber ring end face seal is adopted in oil duct transition sealing.Trunnion shaft main oil gallery 8,9 laterally communicates with one-level equalizer bearing hole 11,13 respectively.By the communication transition of one-level trunnion shaft, the vertical oil duct 15 of lubricant oil utilization, 16 injects respectively secondary equalizer bearing hole, the left and right sides 14,12.The position of all trunnion shaft friction pairs has obtained lubricated fully at this point.
As shown in Figure 2: flywheel casing 5 is transition and distribute lubrication oil at the Main Function aspect the single cylinder engine fuel feeding, wherein offer complete machine oil inlet hole 20, main oil gallery distribution of lubrication oil oilhole 21, trunnion shaft oil duct distribution of lubrication oil oilhole 22,23, utilize two horizontal oil pipes and a vertical oil pipe to be interconnected between each oilhole, and each oil pipe combination is cast in the flywheel casing back.
The groundwork process of recessive type single cylinder engine body lubricating oil circuit: at first, filter through oil strainer from the lubricant oil of equipment oil transfer pump, enter main oil gallery 7 on the crankcase 2 and the left and right sides trunnion shaft main oil gallery 8,9 on the support 4 by flywheel casing distribution of lubrication oil oil circuit.Main oil gallery 7 wherein, laterally enters the pressure lubrication oil reallocation that walks abreast main bearing hole by horizontal oil duct 17 and transition oil pipe 6 and finishes the lubricated of main bearing hole friction pair.Enter the piston cooling nozzle oil duct downwards, finish piston cooling fuel feeding; Upwards enter camshaft bearing hole 18 on the cylinder block 1 by the distribution oil duct, then upwards enter the pitman arm shaft oil supply gallery, the working lubrication of realization camshaft and bearing, pitman arm shaft and bearing hole; The pressure lubrication oil that enters left and right sides trunnion shaft main oil gallery 8,9 is reallocated respectively, progressively enters I and II equalizer bearing hole 11,13,12,14, and whole balance sysmte friction pair will obtain effectively lubricating, guarantee its normal operation.The housing construction oil return system is then oozed out by friction pair fully or cooling jet sprays rear because Action of Gravity Field flows freely into engine sump tank, along with device channels flows into main fuel tank.
Claims (2)
1. recessive type single cylinder engine body lubricating oil channel structures, it comprises cylinder block (1), crankcase (2), bearing cap (3), support (4), flywheel casing (5) and transition oil pipe (6), described cylinder block (1), crankcase (2), bearing cap (3), support (4) and flywheel casing (5) are respectively the standalone module structure, cylinder block (1) and crankcase (2), crankcase (2) and bearing cap (3), bearing cap (3) and support (4), support (4) is connected by stud respectively with flywheel casing (5), it is characterized in that being provided with on the crankcase (2) main oil gallery (7), main oil gallery (7) front end is communicated with transmission case, the rear end is connected with distribution of lubrication oil oilhole (21) on being arranged on flywheel casing (5), main oil gallery (7) laterally communicates with horizontal oil duct (17), it is stifled that one end of horizontal oil duct (17) is set to technique, the other end is connected with transition oil pipe (6), the two ends of transition oil pipe (6) are provided with radial seal groove, the lower end connection bearing lid (3) of transition oil pipe (6), bearing cap (3) is provided with main bearing hole (10), the upper end of main oil gallery (7) communicates with distribution oil duct (19), support is provided with trunnion shaft main oil gallery (8 on (4), 9), trunnion shaft main oil gallery (8,9) front end is connected with transmission case, rear end and the distribution of lubrication oil oilhole (22 that is arranged in the flywheel casing (5), 23) be connected, trunnion shaft main oil gallery (8,9) laterally respectively with one-level equalizer bearing hole (11,13) communicate one-level equalizer bearing hole (11,13) by vertical oil duct (15,16) respectively with secondary equalizer bearing hole (14,12) connect.
2. a kind of recessive type single cylinder engine body lubricating oil channel structures according to claim 1, it is characterized in that being provided with on the described flywheel casing (5) complete machine oil inlet hole (20), main oil gallery distribution of lubrication oil oilhole (21), trunnion shaft oil duct distribution of lubrication oil oilhole (22,23), be interconnected by two horizontal oil pipes and a vertical oil pipe between above-mentioned each oilhole, each oil pipe is cast in the flywheel casing back.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100158631A CN103032129A (en) | 2013-01-17 | 2013-01-17 | Concealed type single-cylinder engine body lubrication circuit structure |
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| CN2013100158631A CN103032129A (en) | 2013-01-17 | 2013-01-17 | Concealed type single-cylinder engine body lubrication circuit structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485926A (en) * | 2013-09-24 | 2014-01-01 | 中国北方发动机研究所(天津) | Sealing device for crank case |
| CN109296739A (en) * | 2018-10-30 | 2019-02-01 | 中国北方发动机研究所(天津) | Sliding bearing pressure oil is every empty oil guide structure |
| CN112682621A (en) * | 2020-12-21 | 2021-04-20 | 中国北方发动机研究所(天津) | Split type flywheel housing structure of integrated oil circuit |
| CN114893318A (en) * | 2022-06-28 | 2022-08-12 | 中船动力研究院有限公司 | Single cylinder engine fixing structure |
| CN114961918A (en) * | 2022-03-09 | 2022-08-30 | 重庆隆鑫发动机有限公司 | Engine lubricating system and engine |
Citations (5)
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| CN1786449A (en) * | 2004-12-06 | 2006-06-14 | 奇瑞汽车有限公司 | Lubricating oil-way of engine cylinder assembly |
| CN201318222Y (en) * | 2008-12-17 | 2009-09-30 | 安徽全柴动力股份有限公司 | Diesel engine body with novel structural lubricating oil duct |
| CN101545412A (en) * | 2009-05-15 | 2009-09-30 | 中国兵器工业集团第七○研究所 | Engine multi-oil channel split type machine body structure |
| CN102644521A (en) * | 2012-05-08 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Adjustable single cylinder engine body structure |
| CN102644522A (en) * | 2012-05-08 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Integrated single-cylinder engine base structure |
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2013
- 2013-01-17 CN CN2013100158631A patent/CN103032129A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786449A (en) * | 2004-12-06 | 2006-06-14 | 奇瑞汽车有限公司 | Lubricating oil-way of engine cylinder assembly |
| CN201318222Y (en) * | 2008-12-17 | 2009-09-30 | 安徽全柴动力股份有限公司 | Diesel engine body with novel structural lubricating oil duct |
| CN101545412A (en) * | 2009-05-15 | 2009-09-30 | 中国兵器工业集团第七○研究所 | Engine multi-oil channel split type machine body structure |
| CN102644521A (en) * | 2012-05-08 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Adjustable single cylinder engine body structure |
| CN102644522A (en) * | 2012-05-08 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Integrated single-cylinder engine base structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485926A (en) * | 2013-09-24 | 2014-01-01 | 中国北方发动机研究所(天津) | Sealing device for crank case |
| CN109296739A (en) * | 2018-10-30 | 2019-02-01 | 中国北方发动机研究所(天津) | Sliding bearing pressure oil is every empty oil guide structure |
| CN112682621A (en) * | 2020-12-21 | 2021-04-20 | 中国北方发动机研究所(天津) | Split type flywheel housing structure of integrated oil circuit |
| CN114961918A (en) * | 2022-03-09 | 2022-08-30 | 重庆隆鑫发动机有限公司 | Engine lubricating system and engine |
| CN114893318A (en) * | 2022-06-28 | 2022-08-12 | 中船动力研究院有限公司 | Single cylinder engine fixing structure |
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Application publication date: 20130410 |