CN104279070B - The wheel train structure of small diesel engine cylinder block - Google Patents
The wheel train structure of small diesel engine cylinder block Download PDFInfo
- Publication number
- CN104279070B CN104279070B CN201410486255.3A CN201410486255A CN104279070B CN 104279070 B CN104279070 B CN 104279070B CN 201410486255 A CN201410486255 A CN 201410486255A CN 104279070 B CN104279070 B CN 104279070B
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- Prior art keywords
- gear
- cylinder block
- oil pump
- diesel engine
- hydraulic 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.)
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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
-
- 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 the wheel train structure of a kind of small diesel engine cylinder block.This wheel train structure includes: cylinder block body；Gear chamber cover plate, is integrated into one end of described cylinder block body, and hydraulic pump and oil pump split the both sides at this gear chamber cover plate；And crankshaft toothed wheel, idle gear, oil pump gear, cam shaft gear, hydraulic pump gear and oil pump gear, each gear described is laid in described cylinder block body one end and forms train.The wheel train structure of this small diesel engine cylinder block is by integrating gear chamber cover plate with cylinder block, and hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, it is to avoid gear chamber cover plate installs the sealing surface leakage of oil formed, the hidden danger leaked, leak gas with cylinder block by bolt.Cylinder of diesel engine directly casts installing hole relevant with processing each train simultaneously, is beneficial to control the dimensional tolerance of train installing hole, reduces the control difficulty in gear gear gap, improve stability and the reliability of diesel engine train transmission.
Description
Technical field
The present invention relates to cylinder of diesel engine field, particularly to the train of a kind of small diesel engine cylinder block
Structure.
Background technology
As it is shown in figure 1, the front end of the most small-sized cylinder of diesel engine 11 or rear end are required for installing hydraulic pressure
Pump (steering pump) 12 and oil pump 13 even load are to meet specific purposes, and these loads are obtained by gear
The power output of engine crankshaft, existing hydraulic pump 12 and oil pump 13 are arranged on single gear chamber cover
On plate 14, gear chamber cover plate 14 is further through being bolted on cylinder of diesel engine 11.Wherein, hydraulic pressure
Pump 12 and oil pump 13 owing to being arranged to from bent axle farther out, be typically necessary each design idle gear transition and with
Crankshaft toothed wheel forms train.
Existing hydraulic pump 12 and oil pump 13 are installed to cylinder of diesel engine by single gear chamber cover plate 14
Complicated structure on body 11, and the installation of gear chamber cover plate 14 and cylinder of diesel engine 11 necessarily deposits
In installation dimension tolerance, add the control difficulty in gear gear gap.It addition, gear chamber cover plate 14 with
Sealing surface between cylinder of diesel engine 11 adds again leakage of oil, the hidden danger leaked, leak gas.
The information being disclosed in this background section is merely intended to increase the reason of the general background to the present invention
Solve, and be not construed as recognizing or imply in any form that this information structure is for this area general technology
Prior art well known to personnel.
Summary of the invention
It is an object of the invention to provide the wheel tying of a kind of simple and reasonable small diesel engine cylinder block
Structure, the wheel train structure of this small diesel engine cylinder block by gear chamber cover plate is integrated with cylinder block,
And hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, it is to avoid gear chamber cover plate passes through with cylinder block
Bolt installs the sealing surface leakage of oil formed, the hidden danger leaked, leak gas.Cylinder of diesel engine is directly cast simultaneously
Make installing hole relevant with processing each train, be beneficial to control the dimensional tolerance of train installing hole, reduce wheel
It is the control difficulty of gear clearance, improves stability and the reliability of diesel engine train transmission.
For achieving the above object, the invention provides the wheel train structure of small diesel engine cylinder block, including:
Cylinder block body；Gear chamber cover plate, is integrated into one end of described cylinder block body, and hydraulic pump and oil pump divide
Put the both sides at this gear chamber cover plate；And crankshaft toothed wheel, idle gear, oil pump gear, cam shaft gear,
Hydraulic pump gear and oil pump gear, each gear described is laid in described cylinder block body one end and forms wheel
System.
Preferably, in technique scheme, one end of cylinder block body offers crankshaft hole, at crankshaft hole
Lower section offer lubricating oil pump installing hole, opened above at crankshaft hole has idle gear installing hole, at lazy tooth
The upper left side of wheel installing hole offers oil pump installing hole, offers cam in the upper right side of idle gear installing hole
Shaft gear installing hole, the right side opening at cam shaft gear installing hole is provided with hydraulic pump gear bearing mounting hole.
Preferably, in technique scheme, crankshaft toothed wheel includes coaxially being laid in the first of the outer end of bent axle
Crankshaft toothed wheel and the second crankshaft toothed wheel, be laid with idle gear between hydraulic pump gear and oil pump gear, and first
Crankshaft toothed wheel engages with idle gear, and idle gear engages with hydraulic pump gear and cam shaft gear respectively, cam
Shaft gear engages with hydraulic pump gear；Second crankshaft toothed wheel engages with oil pump gear.
Compared with prior art, there is advantages that the wheel of this small diesel engine cylinder block
Architecture is by integrating gear chamber cover plate with cylinder block, and splits hydraulic pump and oil pump at gear
The both sides of room cover plate, it is to avoid gear chamber cover plate and cylinder block installed by bolt formed sealing surface leakage of oil,
The hidden danger leak, leaked gas.Cylinder of diesel engine directly casts installing hole relevant with processing each train simultaneously,
It is beneficial to control the dimensional tolerance of train installing hole, reduces the control difficulty in gear gear gap, improve
The stability of diesel engine train transmission and reliability.
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 the small diesel engine cylinder block of the present invention.
Fig. 3 is the main TV structure schematic diagram of the wheel train structure of the small diesel engine cylinder block of the present invention.
Fig. 4 is the stereochemical structure of the cylinder block body of the wheel train structure of the small diesel engine cylinder block of the present invention
Schematic diagram.
Fig. 5 is the main TV structure of the cylinder block body of the wheel train structure of the small diesel engine cylinder block of the present invention
Schematic diagram.
Fig. 6 is the side-looking structural representation of the wheel train structure of the small diesel engine cylinder block of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in detail, it is to be understood that this
The protection domain of invention is not limited by detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " bag
Include " or its conversion as " comprising " or " including " etc. will be understood to comprise stated element or
Ingredient, and do not get rid of other element or other ingredient.
As shown in Figures 2 and 3, according to the wheel of the small diesel engine cylinder block of the specific embodiment of the invention
The concrete structure of architecture includes: cylinder block body 21 and with one end of cylinder block body 21 (front end or
Rear end) the gear chamber cover plate 22 that integrates, and be laid in this cylinder block body 21 one end and form train
First crankshaft toothed wheel 23 of structure, idle gear 24, oil pump gear 25, cam shaft gear 26, hydraulic pump
Gear the 27, second crankshaft toothed wheel 28 and oil pump gear 29, wherein, this small diesel engine cylinder block
Wheel train structure is by integrating gear chamber cover plate with cylinder block, and splits hydraulic pump and oil pump at tooth
The both sides of engineer room cover plate, it is to avoid gear chamber cover plate and cylinder block installed by bolt formed sealing surface leakage of oil,
The hidden danger leak, leaked gas.Cylinder of diesel engine directly casts installing hole relevant with processing each train simultaneously,
It is beneficial to control the dimensional tolerance of train installing hole, reduces the control difficulty in gear gear gap, improve
The stability of diesel engine train transmission and reliability.
Wherein, as shown in Figure 4 and Figure 5, the cylinder block of this small diesel engine cylinder block incorporates gear chamber
The function of cover plate, is integrated into one end of cylinder block body 21 by gear chamber cover plate 22, eliminates original tooth
The independent structure of engineer room cover plate, and directly cast in the one end of the cylinder block being integrated with gear chamber cover plate and add
Work goes out the installing hole of each train: according to the requirement of arrangement of gears, open below cylinder block front end crankshaft hole 31
Being provided with lubricating oil pump installing hole 32, opened above at crankshaft hole 31 has idle gear installing hole 33, at lazy tooth
The upper left side of wheel installing hole 33 offers oil pump installing hole 34, opens in the upper right side of idle gear installing hole 33
Being provided with cam shaft gear installing hole 35, the right side opening at cam shaft gear installing hole 35 is provided with hydraulic pump gear
Bearing mounting hole 36.Wherein, cylinder block front end crankshaft hole 31 is used for installing bent axle, the first crankshaft toothed wheel
23 and second crankshaft toothed wheel 28 be coaxially laid in the outer end of bent axle.Oil pump gear 25 is arranged on oil pump and installs
In hole 34, cam shaft gear 26 is arranged in cam shaft gear installing hole 35, and hydraulic pump gear 27 is pacified
It is contained in hydraulic pump gear bearing mounting hole 36, for engine power is passed by the first crankshaft toothed wheel 23
It is delivered to load hydraulic pump gear 27 and oil pump gear 25, between hydraulic pump gear 27 and oil pump gear 25
Being laid with idle gear 24 transition, idle gear 24 is arranged in idle gear installing hole 33, idle gear 24 simultaneously
Also transferring power to cam shaft gear 26, cam shaft gear 26 is delivered to again hydraulic pump gear 27.
As shown in Figure 6, owing to lubricating oil pump is directly installed in cylinder block, the axial dimension of lubricating oil pump is relatively big,
If directly driven by the first crankshaft toothed wheel 23, need to make crankshaft toothed wheel the widest or by crankshaft toothed wheel,
Move outside oil pump gear, idle gear, cam shaft gear, for making structure the compactest, individually designed second
Crankshaft toothed wheel 28 drives oil pump gear 29, and crankshaft toothed wheel, oil pump gear can use lower level simultaneously
Other material, specification.
To sum up, the wheel train structure of this small diesel engine cylinder block is by by gear chamber cover plate and cylinder block one
Integrated, and hydraulic pump and oil pump are split on the both sides of gear chamber cover plate, it is to avoid gear chamber cover plate and cylinder
Body installs the sealing surface leakage of oil formed, the hidden danger leaked, leak gas by bolt.Cylinder of diesel engine simultaneously
Directly cast installing hole relevant with processing each train, be beneficial to control the dimensional tolerance of train installing hole, fall
The control difficulty in Di Liao gear gear gap, improves stability and the reliability of diesel engine train transmission.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.
These descriptions are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned
Teaching, can much change and change.The purpose selected exemplary embodiment and describe exists
In explaining the certain principles of the present invention and actual application thereof, so that those skilled in the art can be real
Now and utilize the various different exemplary of the present invention and various different selection and change.
The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (2)
1. the wheel train structure of a small diesel engine cylinder block, it is characterised in that including:
Cylinder block body；
Gear chamber cover plate, is integrated into one end of described cylinder block body, and hydraulic pump and oil pump split at this tooth
The both sides of engineer room cover plate；And
Crankshaft toothed wheel, idle gear, oil pump gear, cam shaft gear, hydraulic pump gear and oil pump gear,
Described crankshaft toothed wheel, idle gear, oil pump gear, cam shaft gear, hydraulic pump gear and oil pump gear
It is laid in described cylinder block body one end and forms train；Described crankshaft toothed wheel includes coaxially being laid in bent axle
First crankshaft toothed wheel of outer end and the second crankshaft toothed wheel, lay between described hydraulic pump gear and oil pump gear
Have idle gear, described first crankshaft toothed wheel to engage with idle gear, described idle gear respectively with hydraulic pump gear
And cam shaft gear engagement, described cam shaft gear engages with hydraulic pump gear；Described second crankshaft toothed wheel
Engage with oil pump gear.
The wheel train structure of small diesel engine cylinder block the most according to claim 1, it is characterised in that
One end of described cylinder block body offers crankshaft hole, offers lubricating oil pump peace in the lower section of described crankshaft hole
Dress hole, opened above at crankshaft hole has idle gear installing hole, offers on the upper left side of idle gear installing hole
There is oil pump installing hole, offer cam shaft gear installing hole in the upper right side of idle gear installing hole, at cam
The right side opening of shaft gear installing hole is provided with hydraulic pump gear bearing mounting hole.
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 CN104279070A (en) | 2015-01-14 |
| CN104279070B true CN104279070B (en) | 2016-10-19 |
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| 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 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108757089B (en) * | 2018-08-01 | 2023-05-26 | 广西玉柴机器股份有限公司 | Multifunctional idler gear shaft device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3711212B2 (en) * | 1999-07-23 | 2005-11-02 | 株式会社クボタ | engine |
| GB2353561A (en) * | 1999-08-21 | 2001-02-28 | Cummins Engine Co Ltd | An engine block with machined end faces for receiving a camshaft gear train |
| JP3962341B2 (en) * | 2003-02-14 | 2007-08-22 | 株式会社クボタ | engine |
| JP4419446B2 (en) * | 2003-06-13 | 2010-02-24 | スズキ株式会社 | Engine lubrication structure |
| CN101963110B (en) * | 2010-10-31 | 2012-10-31 | 无锡开普动力有限公司 | Gear chamber structure of diesel engine |
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2014
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN104279070A (en) | 2015-01-14 |
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