CN104279070A - Gear train structure of small diesel engine air cylinder - Google Patents
Gear train structure of small diesel engine air cylinder Download PDFInfo
- Publication number
- CN104279070A CN104279070A CN201410486255.3A CN201410486255A CN104279070A CN 104279070 A CN104279070 A CN 104279070A CN 201410486255 A CN201410486255 A CN 201410486255A CN 104279070 A CN104279070 A CN 104279070A
- Authority
- CN
- China
- Prior art keywords
- gear
- diesel engine
- crankshaft
- cylinder block
- oil pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a gear train structure of a small diesel engine air cylinder. The gear train structure comprises an air cylinder body, a gear chamber cover plate, a crankshaft gear, an idle gear, an oil pump gear, a cam shaft gear, a hydraulic pump gear and an engine oil pump gear. The gear chamber cover plate is integrated to one end of the air cylinder body. A hydraulic pump and an oil pump are disposed on two sides of the gear chamber cover plate. The gears are distributed at one end of the air cylinder body to form the gear train. By the arrangement, potential safety hazards of seal surface oil leakage, water leakage and gas leakage caused by the fact that the gear chamber cover and the air cylinder body are mounted through bolts are avoided. Related gear train mounting holes are directly casted and machined in the diesel engine air cylinder body, the dimensional tolerance of the gear train mounting holes can be controlled favorably, gear train gear gap control difficulty is lowered, and diesel engine gear train transmission stability and reliability are increased.
Description
Technical field
The present invention relates to cylinder of diesel engine field, particularly a kind of wheel train structure of small diesel engine cylinder block.
Background technique
As shown in Figure 1, the front end of generally small-sized cylinder of diesel engine 11 or rear end all need installation oil hydraulic pump (steering pump) 12 and oil pump 13 even load to meet specific purposes, these loads obtain the Power output of engine crankshaft by gear, existing oil hydraulic pump 12 and oil pump 13 are arranged on independent gear chamber cover plate 14, and gear chamber cover plate 14 is bolted again on cylinder of diesel engine 11.Wherein, oil hydraulic pump 12 and oil pump 13 due to arrange away from bent axle, generally all need the transition of each design idle gear and form train with crankshaft gear.
Existing oil hydraulic pump 12 and oil pump 13 are installed to the complicated structure on cylinder of diesel engine 11 by independent gear chamber cover plate 14, and gear chamber cover plate 14 certainly exists installation dimension tolerance with the installation of cylinder of diesel engine 11, adds the control difficulty in gear gear gap.In addition, the hidden danger that the sealing surface between gear chamber cover plate 14 and cylinder of diesel engine 11 turn increases leakage of oil, leaks, leaks gas.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of wheel train structure of simple and reasonable small diesel engine cylinder block, the wheel train structure of this small diesel engine cylinder block is by integrating gear chamber cover plate and cylinder block, and oil hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, avoid gear chamber cover plate and cylinder block, by bolt, the sealing surface leakage of oil formed, the hidden danger of leaking, leaking gas are installed.Cylinder of diesel engine directly casts mounting hole relevant with processing each train simultaneously, is beneficial to the tolerance of size controlling train mounting hole, reduces the control difficulty in gear gear gap, improve stability and the reliability of the transmission of diesel engine train.
For achieving the above object, the invention provides the wheel train structure of small diesel engine cylinder block, comprising: cylinder block body; Gear chamber cover plate, be integrated into one end of described cylinder block body, oil hydraulic pump and oil pump split the both sides at this gear chamber cover plate; And crankshaft gear, idle gear, oil pump gear, camshaft gear wheel, hydraulic pump gear and oil pump gear, each gear described is laid in described cylinder block body one end and forms train.
Preferably, in technique scheme, one end of cylinder block body offers crankshaft hole, oil pump mounting hole is offered in the below of crankshaft hole, idle gear mounting hole is offered above crankshaft hole, offer oil pump mounting hole on the upper left side of idle gear mounting hole, offer camshaft gear wheel mounting hole in the upper right of idle gear mounting hole, be provided with hydraulic pump gear bearing mounting hole at the right side opening of camshaft gear wheel mounting hole.
Preferably, in technique scheme, crankshaft gear comprises the first crankshaft gear and second crankshaft gear of the outer end being coaxially laid in bent axle, idle gear is laid with between hydraulic pump gear and oil pump gear, first crankshaft gear engages with idle gear, idle gear engages with hydraulic pump gear and camshaft gear wheel respectively, and camshaft gear wheel engages with hydraulic pump gear; Second crankshaft gear engages with oil pump gear.
Compared with prior art, the present invention has following beneficial effect: the wheel train structure of this small diesel engine cylinder block is by integrating gear chamber cover plate and cylinder block, and oil hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, avoid gear chamber cover plate and cylinder block, by bolt, the sealing surface leakage of oil formed, the hidden danger of leaking, leaking gas are installed.Cylinder of diesel engine directly casts mounting hole relevant with processing each train simultaneously, is beneficial to the tolerance of size controlling train mounting hole, reduces the control difficulty in gear gear gap, improve stability and the reliability of the transmission of diesel engine train.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the wheel train structure of existing small diesel engine cylinder block.
Fig. 2 is the plan structure schematic diagram of the wheel train structure of small diesel engine cylinder block of the present invention.
Fig. 3 is the main TV structure schematic diagram of the wheel train structure of small diesel engine cylinder block of the present invention.
Fig. 4 is the perspective view of the cylinder block body of the wheel train structure of small diesel engine cylinder block of the present invention.
Fig. 5 is the main TV structure schematic diagram of the cylinder block body of the wheel train structure of small diesel engine cylinder block of the present invention.
Fig. 6 is the side-looking structural representation of the wheel train structure of small diesel engine cylinder block of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figures 2 and 3, concrete structure according to the wheel train structure of the small diesel engine cylinder block of the specific embodiment of the invention comprises: cylinder block body 21 and the gear chamber cover plate 22 integrated with one end (front end or rear end) of cylinder block body 21, and be laid in the first crankshaft gear 23 that this cylinder block body 21 one end forms wheel train structure, idle gear 24, oil pump gear 25, camshaft gear wheel 26, hydraulic pump gear 27, second crankshaft gear 28 and oil pump gear 29, wherein, the wheel train structure of this small diesel engine cylinder block is by integrating gear chamber cover plate and cylinder block, and oil hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, avoid gear chamber cover plate and cylinder block that the sealing surface leakage of oil formed is installed by bolt, leak, the hidden danger of gas leakage.Cylinder of diesel engine directly casts mounting hole relevant with processing each train simultaneously, is beneficial to the tolerance of size controlling train mounting hole, reduces the control difficulty in gear gear gap, improve stability and the reliability of the transmission of diesel engine train.
Wherein, as shown in Figure 4 and Figure 5, the cylinder block of this small diesel engine cylinder block incorporates the function of gear chamber cover plate, gear chamber cover plate 22 is integrated into one end of cylinder block body 21, eliminate the independent structure of original gear chamber cover plate, and directly cast in the one end of the cylinder block being integrated with gear chamber cover plate and process the mounting hole of each train: according to the requirement of arrangement of gears, oil pump mounting hole 32 is offered below cylinder block front end crankshaft hole 31, idle gear mounting hole 33 is offered above crankshaft hole 31, oil pump mounting hole 34 is offered on the upper left side of idle gear mounting hole 33, camshaft gear wheel mounting hole 35 is offered in the upper right of idle gear mounting hole 33, hydraulic pump gear bearing mounting hole 36 is provided with at the right side opening of camshaft gear wheel mounting hole 35.Wherein, cylinder block front end crankshaft hole 31 is for installing bent axle, and the first crankshaft gear 23 and the second crankshaft gear 28 are coaxially laid in the outer end of bent axle.Oil pump gear 25 is arranged in oil pump mounting hole 34, camshaft gear wheel 26 is arranged in camshaft gear wheel mounting hole 35, hydraulic pump gear 27 is arranged in hydraulic pump gear bearing mounting hole 36, for engine power is delivered to load hydraulic pump gear 27 and oil pump gear 25 by the first crankshaft gear 23, idle gear 24 transition is laid with between hydraulic pump gear 27 and oil pump gear 25, idle gear 24 is arranged in idle gear mounting hole 33, also transferring power is to camshaft gear wheel 26 for idle gear 24 simultaneously, and camshaft gear wheel 26 is delivered to again hydraulic pump gear 27.
As shown in Figure 6, because oil pump is directly installed in cylinder block, the axial dimension of oil pump is larger, if directly driven by the first crankshaft gear 23, need crankshaft gear to do very wide or move outside crankshaft gear, oil pump gear, idle gear, camshaft gear wheel, for making structure as far as possible compact, devising separately the second crankshaft gear 28 and driving oil pump gear 29, crankshaft gear, oil pump gear can adopt more low-level material, specification simultaneously.
To sum up, the wheel train structure of this small diesel engine cylinder block is by integrating gear chamber cover plate and cylinder block, and oil hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, avoid gear chamber cover plate and cylinder block, by bolt, the sealing surface leakage of oil formed, the hidden danger of leaking, leaking gas are installed.Cylinder of diesel engine directly casts mounting hole relevant with processing each train simultaneously, is beneficial to the tolerance of size controlling train mounting hole, reduces the control difficulty in gear gear gap, improve stability and the reliability of the transmission of diesel engine train.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (3)
1. a wheel train structure for small diesel engine cylinder block, is characterized in that, comprising:
Cylinder block body;
Gear chamber cover plate, be integrated into one end of described cylinder block body, oil hydraulic pump and oil pump split the both sides at this gear chamber cover plate; And
Crankshaft gear, idle gear, oil pump gear, camshaft gear wheel, hydraulic pump gear and oil pump gear, each gear described is laid in described cylinder block body one end and forms train.
2. the wheel train structure of small diesel engine cylinder block according to claim 1, it is characterized in that, one end of described cylinder block body offers crankshaft hole, oil pump mounting hole is offered in the below of described crankshaft hole, idle gear mounting hole is offered above crankshaft hole, offer oil pump mounting hole on the upper left side of idle gear mounting hole, offer camshaft gear wheel mounting hole in the upper right of idle gear mounting hole, be provided with hydraulic pump gear bearing mounting hole at the right side opening of camshaft gear wheel mounting hole.
3. the wheel train structure of small diesel engine cylinder block according to claim 1 and 2, it is characterized in that, described crankshaft gear comprises the first crankshaft gear and second crankshaft gear of the outer end being coaxially laid in bent axle, idle gear is laid with between described hydraulic pump gear and oil pump gear, described first crankshaft gear engages with idle gear, described idle gear engages with hydraulic pump gear and camshaft gear wheel respectively, and described camshaft gear wheel engages with hydraulic pump gear; Described second crankshaft gear engages with oil pump gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486255.3A CN104279070B (en) | 2014-09-22 | 2014-09-22 | The wheel train structure of small diesel engine cylinder block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486255.3A CN104279070B (en) | 2014-09-22 | 2014-09-22 | The wheel train structure of small diesel engine cylinder block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279070A true CN104279070A (en) | 2015-01-14 |
| CN104279070B CN104279070B (en) | 2016-10-19 |
Family
ID=52254328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410486255.3A Active CN104279070B (en) | 2014-09-22 | 2014-09-22 | The wheel train structure of small diesel engine cylinder block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104279070B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757089A (en) * | 2018-08-01 | 2018-11-06 | 广西玉柴机器股份有限公司 | Multi-functional idle gear shaft device |
| CN108952993A (en) * | 2018-07-19 | 2018-12-07 | 东风商用车有限公司 | Rear-end gear chamber structure of diesel engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032722A (en) * | 1999-07-23 | 2001-02-06 | Kubota Corp | Engine |
| US6415758B1 (en) * | 1999-08-21 | 2002-07-09 | Cummins Engine Company Ltd. | Engine block for an internal combustion engine |
| CN1521391A (en) * | 2003-02-14 | 2004-08-18 | 株式会社久保田 | Engine and method for producing the engine |
| US20040250789A1 (en) * | 2003-06-13 | 2004-12-16 | Suzuki Motor Corporation | Lubricating structure for engines, lubricating structure for engines for snow vehicles, and snow vehicle |
| CN101963110A (en) * | 2010-10-31 | 2011-02-02 | 无锡开普动力有限公司 | Gear chamber structure of diesel engine |
| CN204060953U (en) * | 2014-09-22 | 2014-12-31 | 广西玉柴机器股份有限公司 | The wheel train structure of small diesel engine cylinder block |
-
2014
- 2014-09-22 CN CN201410486255.3A patent/CN104279070B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032722A (en) * | 1999-07-23 | 2001-02-06 | Kubota Corp | Engine |
| US6415758B1 (en) * | 1999-08-21 | 2002-07-09 | Cummins Engine Company Ltd. | Engine block for an internal combustion engine |
| CN1521391A (en) * | 2003-02-14 | 2004-08-18 | 株式会社久保田 | Engine and method for producing the engine |
| US20040250789A1 (en) * | 2003-06-13 | 2004-12-16 | Suzuki Motor Corporation | Lubricating structure for engines, lubricating structure for engines for snow vehicles, and snow vehicle |
| CN101963110A (en) * | 2010-10-31 | 2011-02-02 | 无锡开普动力有限公司 | Gear chamber structure of diesel engine |
| CN204060953U (en) * | 2014-09-22 | 2014-12-31 | 广西玉柴机器股份有限公司 | The wheel train structure of small diesel engine cylinder block |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952993A (en) * | 2018-07-19 | 2018-12-07 | 东风商用车有限公司 | Rear-end gear chamber structure of diesel engine |
| CN108952993B (en) * | 2018-07-19 | 2023-12-05 | 东风商用车有限公司 | Gear chamber structure at rear end of diesel engine |
| CN108757089A (en) * | 2018-08-01 | 2018-11-06 | 广西玉柴机器股份有限公司 | Multi-functional idle gear shaft device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104279070B (en) | 2016-10-19 |
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| C14 | Grant of patent or utility model | ||
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