CN204476495U - The integral structure of balance shaft of engine and oil pump - Google Patents
The integral structure of balance shaft of engine and oil pump Download PDFInfo
- Publication number
- CN204476495U CN204476495U CN201420848091.XU CN201420848091U CN204476495U CN 204476495 U CN204476495 U CN 204476495U CN 201420848091 U CN201420848091 U CN 201420848091U CN 204476495 U CN204476495 U CN 204476495U
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- China
- Prior art keywords
- oil pump
- shaft
- oil
- driven
- inlet hole
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- Expired - Fee Related
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Abstract
A kind of turbosupercharged engine oil pump and trunnion shaft integral structure, comprise oil pump and be assemblied in the balance shaft housing of oil pump output terminal, driving shaft in balance shaft housing, driven shaft, timing jig, its technological points is: the oil pump driven gear side of described upper shell is provided with the oil pump oil inlet hole of substantially horizontal, the driven shaft gear side of upper shell is provided with the trunnion shaft oil inlet hole of vertical direction, is provided with the oil pump oil outlet of vertical direction between oil pump oil inlet hole and trunnion shaft oil inlet hole; Oil pump is provided with Oil pump drive gear, and Oil pump drive gear engages with the oil pump driven gear of driving shaft, and oil pump casing is screwed on balance shaft housing by some locking nuts.Employing individual gears drives, and strengthen the stationarity of transmission of power, the machine decreasing engine cylinder-body adds cost, convenient for assembly, and engine assembly compact type is strengthened, and the consumption of overall reduction engine fuel, improves power performance.
Description
Technical field
The utility model relates to petrol engine field, specifically the integral structure of a kind of balance shaft of engine and oil pump.
Background technique
Along with the update of automobile product, automobile production enterprise, in constantly competing, constantly accelerates the exploitation of car load product.From the configuration design of car load, material and hardware support kit equipment improve input and also strengthen accordingly, above improvement all will be able to have an impact to the performance of Motor Vehicle and travelling comfort, but the heart of automobile---motor, the most vital for performance, no matter should measure from the supply of material, the aspect such as price and Performance Match, all directly can affect the performance index of vehicle newly developed.As a rule, for huge discharge (2.0 ~ 2.2L) turbosupercharging motor car engine to effectively slow down on the basis not affecting power performance automobile entirety vibrations and lubricants capacity abundance altogether to.Generally, balance shaft module and the high oil pump of pumping ability can be increased on engine cylinder-body, simultaneously in order to driven equilibrium axle and oil pump also can supporting oil leab, the actuation gears of corresponding increase, the component such as chain, bearing shell.Day by day pursuing today of engine structure design reduced form, compact type.There is great narrow limitation in this extensive style design, is mainly reflected in and adds engine cylinder-body manufacturing process complexity, increases final assembly difficulty, exacerbates engine interior contact friction, thus cause engine performance to reduce.
Model utility content
The purpose of this utility model is to provide the integral structure of a kind of balance shaft of engine and oil pump, fundamentally solves that available engine manufacturing complexity is high, assembling difficulty is large, internal friction resistance is high, the low inferior problem of overall performance.
The purpose of this utility model is achieved in that the integral structure of this balance shaft of engine and oil pump comprises oil pump and is assemblied in the balance shaft housing of oil pump output terminal, balance shaft housing comprises the upper shell and lower shell body that cooperatively interact, spacing upper, driving shaft between lower shell body and driven shaft, homonymy on driving shaft and driven shaft is respectively equipped with the driving shaft gear and driven shaft gear that are meshed, the opposite side of driving shaft coaxially arranges oil pump driven gear, driven shaft is provided with timing jig, it is characterized in that: the oil pump driven gear side of described upper shell is provided with the oil pump oil inlet hole of substantially horizontal, the driven shaft gear side of upper shell is provided with the trunnion shaft oil inlet hole of vertical direction, the oil pump oil outlet of vertical direction is provided with between oil pump oil inlet hole and trunnion shaft oil inlet hole, oil pump is provided with Oil pump drive gear, and Oil pump drive gear engages with the oil pump driven gear of driving shaft, and oil pump casing is screwed on balance shaft housing by some locking nuts.
Described driving shaft, be respectively equipped with top bearing shell, lower bearing between driven shaft and upper and lower casing, top bearing shell, lower bearing are spacing in upper and lower casing respectively by bearing shell draw-in groove.
Described top bearing shell, be respectively equipped with arc groove between lower bearing and upper and lower casing, groove is communicated with the trunnion shaft oil duct in upper shell.
Be provided with positioning hole in described upper shell, lower shell body is provided with the locating stud matched with upper shell positioning hole.
The advantage that the utility model has and positive technique effect are: trunnion shaft is arranged in upper and lower casing, and combine with oil pump, and achieving by the driving of trunnion shaft is cylinder body main oil gallery fuel feeding.Driving shaft gear and driven shaft gear will have arrow timing marks, facilitate the correct assembling of trunnion shaft.Pass through chain drive oil pump live axle by the bent axle of motor, oil pump live axle is passed on to oil pump driven gear by Oil pump drive gear, and oil pump driven gear drives initiatively, driven trunnion shaft rotates.Balance shaft housing is arranged timing positioning hole, by the timing jig of correspondence, trunnion shaft is located, to the overall timing assembling of turbogenerator.The uniform force that distributes around upper and lower casing mounting hole, strengthens tightness of oil conduit.Oil pump is connected with sump strainer for O RunddichtringO compact siro spinning technology but not bolt connects, and not only reduces technique linkage editor but also strengthens sealing.Cast independently oil leab in balance shaft housing, to strengthen the lubrication between trunnion shaft and balance bearing shell, reduce independent foundry goods quantity, and then simplified production technology.At trunnion shaft lower shell body, bearing shell middle machine is installed and adds groove, facilitate the storage of lubricant oil, make trunnion shaft and upper and lower bearing shell and between sufficient lubrication, add bearing shell draw-in groove at the installation place machine of bearing shell, prevent relative play between bearing shell and trunnion shaft, ensure the steady running of trunnion shaft high speed.The oil duct that on upper shell, setting is connected with oil pump is into and out of oilhole, and machine oil oil inlet hole is transported in the main oil gallery of turbosupercharged engine cylinder body through balance shaft housing.Upper shell is also provided with trunnion shaft oil inlet hole, enters in trunnion shaft oil duct, ensure the sufficient lubrication of trunnion shaft by the machine oil after filtering.In sum, oil pump and trunnion shaft are integrated, optimizes the run stability of trunnion shaft, reduce the complexity of engine cylinder-body manufacturing process, and then reduce and add cost.Master and slave trunnion shaft is transmitted by gears meshing, improves the stability of transmission of power, enhances the compactedness of overall engine structure, reduces oil consumption, significantly improves the performance of motor.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram I of the utility model trunnion shaft;
Fig. 2 is the assembly structure schematic diagram II of the utility model trunnion shaft;
Fig. 3 is the surface structure schematic diagram of the utility model oil pump;
Fig. 4 is the surface structure schematic diagram after the utility model oil pump and trunnion shaft combine.
Description of reference numerals: 1 upper shell, 2 driving shaft gears, 3 driven shaft gears, 4 driving shafts, 5 driven shafts, 6 timing jigs, 7 lower shell bodys, 8 oil pump driven gears, 9 oil pump oil inlet holes, 10 oil pump oil outlets, 11 trunnion shaft oil inlet holes, 12 locating studs, 13 top bearing shells, 14 trunnion shaft oil ducts, 15 lower bearinges, 16 grooves, 17 bearing shell draw-in grooves, 18 oil pump casings, 19 Oil pump drive gears, 20 tight split nuts, 21 pressure-limit valve plungers, 22 oil pump, 23 balance shaft housings, 24 bolts.
Embodiment
Below in conjunction with Fig. 1 ~ 4, describe content of the present utility model in detail by specific embodiment.The integral structure of this balance shaft of engine and oil pump comprises oil pump 22 and is assemblied in the balance shaft housing 23 of oil pump 22 output terminal, balance shaft housing 23 comprises the upper shell 1 and lower shell body 7 that cooperatively interact, spacing driving shaft 4 between upper and lower casing 1 and 7 and driven shaft 5, be provided with positioning hole in upper shell, lower shell body is provided with the locating stud matched with upper shell positioning hole.Homonymy on driving shaft 4 and driven shaft 5 is respectively equipped with the driving shaft gear 2 and driven shaft gear 3 that are meshed, and the opposite side of driving shaft 4 coaxially arranges oil pump driven gear 8, and driven shaft 5 is provided with timing jig 6.Because trunnion shaft is by gear transmission kinetic energy, so the control of timing cannot be carried out by chain.In assembly process, the arrow of timing marks upward simultaneously, ensures that balance shaft module timing is installed accurately, prevents setup error from causing driving shaft and driven mutual shock to cause unnecessary loss.Driving shaft 4, be respectively equipped with four groups of bushing components (cooperatively interact the top bearing shell 13 and lower bearing 15 that form tubular) between driven shaft 5 and upper and lower casing, bushing component is spacing in balance shaft housing by bearing shell draw-in groove 17.Be provided with the annular groove combined by two arc grooves for the lubricant oil that leads between bearing shell and balance shaft housing, annular groove is communicated with the trunnion shaft oil duct 14 in upper shell.The oil pump driven gear side of upper shell 1 is provided with the oil pump oil inlet hole 9 of substantially horizontal, the driven shaft gear side of upper shell is provided with the trunnion shaft oil inlet hole 11 of vertical direction, is provided with the oil pump oil outlet 10 of vertical direction between oil pump oil inlet hole 9 and trunnion shaft oil inlet hole 11.Oil pump is provided with Oil pump drive gear 19, and Oil pump drive gear 19 engages with the oil pump driven gear 8 of driving shaft, and Oil pump drive gear 19 to be connected with the crankshaft gear of motor by chain and to realize transmission of power.Oil pump 22 comprises machine inner and outer rotors, pressure-limit valve plunger 21, Oil pump drive gear 19 and some tight split nuts 20, and oil pump casing 18 is screwed on balance shaft housing by some locking nuts 20.
Working principle: when high engine speeds operates, must ensure the lubrication environment of trunnion shaft.Trunnion shaft is separated from engine cylinder-body and becomes stand-alone assembly, not only ensure that sufficient lubrication, and improve the assembling compactedness of motor.And active balancing shaftgear and the driven balance shaft gear number of teeth need and crankshaft gear is determined jointly.During crankshaft operation, moved by chain drive Oil pump drive gear 19, Oil pump drive gear 19 driving machine oil pump driven gear 8, thus drive driving shaft and driven shaft steady running.Be provided with trunnion shaft main oil gallery in upper shell, lubricant oil enters from oil pump oil inlet hole 9, enters turbogenerator cylinder body main oil gallery and carries out filter cleaner filtration, entered in the groove of bearing shell and body clearance lubricate by trunnion shaft oil inlet hole 11 by oil pump oil outlet 10.Driving shaft needs to assemble with driving shaft gear 2 and oil pump driven gear 8 in the pre-assembly.Driven shaft 5 needs to assemble with driven shaft actuation gear 3 before assembly, corresponding trunnion shaft lower shell body is assembled into corresponding bearing shell by locating stud and bolt after driving shaft and driven shaft have assembled, and the bolt hole of upper and lower casing is evenly distributed on casing surroundings, make stressed shell even, improve the sealing forming oil duct between upper and lower casing.
Claims (4)
1. the integral structure of a balance shaft of engine and oil pump, comprise oil pump and be assemblied in the balance shaft housing of oil pump output terminal, balance shaft housing comprises the upper shell and lower shell body that cooperatively interact, spacing upper, driving shaft between lower shell body and driven shaft, homonymy on driving shaft and driven shaft is respectively equipped with the driving shaft gear and driven shaft gear that are meshed, the opposite side of driving shaft coaxially arranges oil pump driven gear, driven shaft is provided with timing jig, it is characterized in that: the oil pump driven gear side of described upper shell is provided with the oil pump oil inlet hole of substantially horizontal, the driven shaft gear side of upper shell is provided with the trunnion shaft oil inlet hole of vertical direction, the oil pump oil outlet of vertical direction is provided with between oil pump oil inlet hole and trunnion shaft oil inlet hole, oil pump is provided with Oil pump drive gear, and Oil pump drive gear engages with the oil pump driven gear of driving shaft, and oil pump casing is screwed on balance shaft housing by some locking nuts.
2. the integral structure of balance shaft of engine according to claim 1 and oil pump, it is characterized in that: described driving shaft, be respectively equipped with top bearing shell, lower bearing between driven shaft and upper and lower casing, top bearing shell, lower bearing are spacing in upper and lower casing respectively by bearing shell draw-in groove.
3. the integral structure of balance shaft of engine according to claim 1 and 2 and oil pump, is characterized in that: described top bearing shell, be respectively equipped with arc groove between lower bearing and upper and lower casing, and groove is communicated with the trunnion shaft oil duct in upper shell.
4. the integral structure of balance shaft of engine according to claim 3 and oil pump, is characterized in that: be provided with positioning hole in described upper shell, and lower shell body is provided with the locating stud matched with upper shell positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848091.XU CN204476495U (en) | 2014-12-29 | 2014-12-29 | The integral structure of balance shaft of engine and oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848091.XU CN204476495U (en) | 2014-12-29 | 2014-12-29 | The integral structure of balance shaft of engine and oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476495U true CN204476495U (en) | 2015-07-15 |
Family
ID=53632294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420848091.XU Expired - Fee Related CN204476495U (en) | 2014-12-29 | 2014-12-29 | The integral structure of balance shaft of engine and oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476495U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822380A (en) * | 2016-03-25 | 2016-08-03 | 无锡沃尔福汽车技术有限公司 | Variable fuel pump assembly of three-cylinder diesel engine |
| CN108005783A (en) * | 2017-10-20 | 2018-05-08 | 宝沃汽车（中国）有限公司 | Balance shaft housing, balance shaft assembly and engine |
| CN108036185A (en) * | 2017-10-20 | 2018-05-15 | 宝沃汽车（中国）有限公司 | Engine balance mechanism and vehicle |
| CN111485970A (en) * | 2019-01-28 | 2020-08-04 | 长城汽车股份有限公司 | Engine balance shaft assembly and engine |
| US10907516B2 (en) * | 2016-11-04 | 2021-02-02 | Hitachi Automotive Systems, Ltd. | Balancer device for internal combustion engine |
-
2014
- 2014-12-29 CN CN201420848091.XU patent/CN204476495U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822380A (en) * | 2016-03-25 | 2016-08-03 | 无锡沃尔福汽车技术有限公司 | Variable fuel pump assembly of three-cylinder diesel engine |
| US10907516B2 (en) * | 2016-11-04 | 2021-02-02 | Hitachi Automotive Systems, Ltd. | Balancer device for internal combustion engine |
| CN108005783A (en) * | 2017-10-20 | 2018-05-08 | 宝沃汽车（中国）有限公司 | Balance shaft housing, balance shaft assembly and engine |
| CN108036185A (en) * | 2017-10-20 | 2018-05-15 | 宝沃汽车（中国）有限公司 | Engine balance mechanism and vehicle |
| CN111485970A (en) * | 2019-01-28 | 2020-08-04 | 长城汽车股份有限公司 | Engine balance shaft assembly and 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20211229 |