CN107289271A - A kind of lightweight lubricating oil pump with idle gear - Google Patents
A kind of lightweight lubricating oil pump with idle gear Download PDFInfo
- Publication number
- CN107289271A CN107289271A CN201710708542.8A CN201710708542A CN107289271A CN 107289271 A CN107289271 A CN 107289271A CN 201710708542 A CN201710708542 A CN 201710708542A CN 107289271 A CN107289271 A CN 107289271A
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- China
- Prior art keywords
- hole
- idler shaft
- idle gear
- shaft
- bolt
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention provides a kind of lightweight lubricating oil pump with idle gear, including the aluminum pump housing, travelling gear, idle gear, idler shaft, bolt, the pump housing is provided with oil pocket and idler shaft mounting hole, idler shaft mounting hole includes the circular hole on top and the screwed hole of bottom, the aperture of circular hole is more than the aperture of screwed hole, and boss is enclosed in the junction formation one of circular hole and screwed hole；The big shaft part of idler shaft is arranged in the axis hole of idle gear, and small shaft part is arranged in the circular hole of the pump housing, and first annular gap is formed between the lower end surface of small shaft part and the boss, and the oil leab for connecting both is provided between first annular gap and the oil pocket；The screw rod of bolt is screwed into the screwed hole of the pump housing after passing through the bolt mounting holes of idler shaft, idler shaft is fixed on the pump housing, the second annular gap is formed between the bolt mounting holes inwall of bolt and idler shaft；Hydraulic oil in oil pocket passes sequentially through oil leab, first annular gap, the second annular gap, lubrication through hole to bushing and idler shaft offer lubrication.
Description
Technical field
The present invention relates to a kind of engine lubrication system part, more particularly to a kind of lubricating oil pump with idle gear.
Background technology
Existing huge discharge lubricating oil pump is typically mounted in the machine oil shell below engine crankcase, passes through engine crankshaft
On gear driving transmission gear of engine oil pump, because engine crankcase is very big, the centre-to-centre spacing ratio of machine oil pump drive shaft and bent axle
It is larger, on the premise of gearratio is determined, if simple relies on increase transmission gear of engine oil pump and the gear diameter on bent axle
To match centre-to-centre spacing, gear and transmission gear of engine oil pump on bent axle certainly will be caused excessive, can so increase cost, start in addition
Machine is also without enough space placement diameters very big gear.So must increase between transmission gear of engine oil pump and crankshaft toothed wheel
Plus the gear driving force on bent axle could be delivered on transmission gear of engine oil pump by an idle gear, so can both be reduced into
This, can also make engine structure compacter.
And idle gear is arranged on the pump housing typically by idler shaft, in the prior art, the pump housing is essentially all casting
Ironware, such idler shaft can be just arranged on the pump housing by the way of interference fit.Because there is lacking for heavier mass in ironcasting
Point, if the material of the pump housing is changed into aluminum casting, although weight can be mitigated, but idler shaft cannot be using the side being interference fitted
Formula is arranged on the pump housing of aluminum, it is therefore necessary to use a kind of new mounting means and structure to adapt to the aluminum pump housing, and
This new structure also needs to solve the lubrication and heat dissipation problem between idle gear shaft hole inner wall and idler shaft.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of lightweight lubricating oil pump with idle gear.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of lightweight lubricating oil pump with idle gear,
Including the pump housing, travelling gear, idler shaft, idle gear, bolt, the pump housing is aluminum casting, and the pump housing is provided with oil pocket and lazy
Wheel shaft mounting hole, the idler shaft mounting hole is shoulder hole, includes the circular hole and the screwed hole of bottom on top, the hole of the circular hole
Footpath is more than the aperture of screwed hole, and boss is enclosed in the junction formation one of the circular hole and the screwed hole；The idler shaft is ladder
Axle, including thrust button, big shaft part, small shaft part, the idler shaft run through its overall axial bolt mounting holes provided with one,
The big shaft part is provided with a lubrication through hole intersected with bolt mounting holes；The big shaft part of the idler shaft is arranged on idle gear
Axis hole in, between the shaft hole inner wall of the big shaft part and idle gear be equipped with bushing, the small shaft part be arranged on the pump housing circular hole
In；The length of the small shaft part of the idler shaft is less than the depth of the circular hole, lower end surface and the boss of the small shaft part
Between form first annular gap, between the first annular gap and the oil pocket be provided with by both connect oil leab；
The screw rod of the bolt is screwed into the screwed hole of the pump housing after passing through the bolt mounting holes of the idler shaft, fixes idler shaft
On the pump housing, the diameter of the bolt is less than the aperture of the bolt mounting holes of the idler shaft, the bolt and the idler shaft
Bolt mounting holes inwall between form the second annular gap；Hydraulic oil in the oil pocket passes sequentially through oil leab, first
Annular gap, the second annular gap, lubrication through hole provide lubrication to bushing and idler shaft.
In above-mentioned technical proposal, because the pump housing is aluminum casting, idle gear and idler shaft are arranged on the pump housing by bolt, this
Sample had both alleviated the weight of the pump housing, and the installation question between idler shaft and the pump housing is solved again.Simultaneously as the small shaft part of idler shaft
Length be less than idler shaft mounting hole circular hole depth, the diameter of bolt is less than the hole of the bolt mounting holes of the idler shaft
Footpath, the hydraulic oil thus dexterously formd in first annular gap and the second annular gap, oil pocket passes sequentially through lubricating oil
Road, first annular gap, the second annular gap, lubrication through hole provide lubrication to bushing and idler shaft.Afterwards, hydraulic oil can also lead to
Continue, toward the flowing of idle gear shaft platform two ends, to make machine oil from the axle you face of idle gear two in the gap crossed between idler shaft and bushing axis hole
Leak out and return in machine oil shell, be achieved in that the oil circulation circulation between idle gear axis hole and idler shaft, so as to
It is enough continual provide lubrication, radiating to the idle gear that big load rotates, it is to avoid idle gear axis hole is burnt to death with idler shaft, embraced
The failures such as axle.
Further technical scheme is the present invention：Drain pan is equipped with the axle platform both ends of the surface of the idle gear.
Preferably, four uniform drain pans are respectively provided with the axle platform both ends of the surface of the idle gear.
Because idle gear shaft you face is provided with drain pan, it can so accelerate between bushing axis hole and the big shaft part of idler shaft
The flow velocity of machine oil, makes lubrication, radiating effect more preferable.
Preferably, the shaft hole inner wall interference fit of the bushing and idle gear.
Preferably, the lubrication through hole on the idler shaft intersects vertically with bolt mounting holes.
Preferably, the thrust button of the idler shaft is provided with loss of weight counterbore.
Brief description of the drawings
Fig. 1 is the lubricating oil pump overall structure diagram in the embodiment of the present invention；
Fig. 2 is the structural representation of middle pump body of the embodiment of the present invention；
Fig. 3 be Fig. 1 in part A structure enlarged diagram；
Fig. 4 is the structural representation of idle gear in the embodiment of the present invention；
Reference is：
1 --- the pump housing 2 --- travelling gear 3 --- idler shaft
4 --- idle gear 5 --- bolt 6 --- bushings
7 --- first annular gap 8 --- the second annular gap 11 --- oil pockets
12 --- idler shaft mounting hole 121 --- circular hole 122 --- screwed holes
13 --- oil leab 31 --- lubrication through hole 41 --- drain pans.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and accompanying drawing
It is bright, the content that embodiment is referred to not limitation of the invention.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or the implicit quantity for indicating indicated technical characteristic.In description of the invention
In, " multiple " are meant that two or more, unless otherwise specifically defined.In the description of the invention, it is necessary to
Illustrate, unless otherwise prescribed and limit, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be
Mechanically connect or electrical connection or the connection of two element internals, can be joined directly together, intermediary can also be passed through
It is indirectly connected to, for the ordinary skill in the art, the concrete meaning of the term can be understood as the case may be.
As shown in Figures 1 to 3, the preferred embodiments of the present invention are：A kind of lightweight lubricating oil pump with idle gear, including the pump housing 1,
Travelling gear 2, idler shaft 3, idle gear 4, bolt 5, the pump housing 1 are aluminum casting, and the pump housing 1 is provided with oil pocket 11 and idle pulley
Axle mounting hole 12, the idler shaft mounting hole 12 is shoulder hole, includes the circular hole 121 and the screwed hole 122 of bottom on top, described
The aperture of circular hole 121 is more than the aperture of screwed hole 122, and the junction formation one of the circular hole 121 and the screwed hole 122 encloses convex
Platform；The idler shaft 3 is multi-diameter shaft, including thrust button, big shaft part, small shaft part, the thrust button are provided with loss of weight counterbore, described
Idler shaft 3 is provided with one through its overall axial bolt mounting holes, and the big shaft part is installed provided with one with bolt
The lubrication through hole 31 that hole intersects vertically；The big shaft part of the idler shaft 3 be arranged on idle gear 4 axis hole in, the big shaft part with
Bushing 6 is housed, the shaft hole inner wall of the bushing 6 and idle gear 4 is interference fitted, the small axle between the shaft hole inner wall of idle gear 4
Section is arranged in the circular hole 121 of the pump housing 1；The length of the small shaft part of the idler shaft 3 is less than the depth of the circular hole 121, described
First annular gap 7, the first annular gap 7 and the oil pocket 11 are formed between the lower end surface of small shaft part and the boss
Between be provided with by both connect oil leab 13；The screw rod of the bolt 5 is twisted after passing through the bolt mounting holes of the idler shaft 3
In the screwed hole 122 for entering the pump housing 1, idler shaft 3 is set to be fixed on the pump housing 1, the diameter of the bolt 5 is less than the idler shaft
Formed between the aperture of 3 bolt mounting holes, the bolt mounting holes inwall of the bolt 5 and the idler shaft 3 between the second annular
Gap 8；It is logical that hydraulic oil in the oil pocket 11 passes sequentially through oil leab 13, first annular gap 7, the second annular gap 8, lubrication
Hole 31 provides lubrication to bushing 6 and idler shaft 3.
In above-mentioned technical proposal, because the pump housing 1 is aluminum casting, idle gear 4 and idler shaft 3 are arranged on the pump housing 1 by bolt 5
On, the weight of the pump housing 1 had so both been alleviated, the installation question between idler shaft 3 and the pump housing 1 is solved again.Simultaneously as idle pulley
The length of the small shaft part of axle 3 is less than the depth of the circular hole 121 of idler shaft mounting hole, and the diameter of bolt 5 is less than the spiral shell of the idler shaft 3
The aperture of bolt mounting hole, thus dexterously forms the high pressure in the first annular annular gap 8 of gap 7 and second, oil pocket 11
Oil pass sequentially through oil leab 13, first annular gap 7, the second annular gap 8, lubrication through hole 31 bushing 6 and idler shaft 3 are carried
For lubrication.Afterwards, hydraulic oil can also be continued by the gap between idler shaft 3 and bushing 3 toward the flowing of the axle platform two ends of idle gear 4,
Make during machine oil leaks out from 4 liang of axle you faces of idle gear and return machine oil shell, to be achieved in that the axis hole of idle gear 4 and idler shaft
Oil circulation circulation between 3, lubrication, radiating are provided so as to continual to the idle gear 4 that big load rotates, it is to avoid
The axis hole of idle gear 4 and idler shaft 3 such as burn, seized to death at the failure.
As shown in figure 4, the further technical scheme of the present embodiment is：It is respectively provided with the axle platform both ends of the surface of the idle gear 4
Four uniform drain pans 41.Due to the axle you face of idle gear 4 be provided with drain pan 41, can so accelerate the axis hole of bushing 6 with
The flow velocity of machine oil, makes lubrication, radiating effect more preferable between the big shaft part of idler shaft 3.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can be realized with other manner,
Any obvious replacement is within protection scope of the present invention on the premise of not departing from the technical program design.
In order to allow those of ordinary skill in the art more easily to understand improvements of the present invention relative to prior art, this
Some accompanying drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, those of ordinary skill in the art should be aware that these elements omitted also may make up present disclosure.
Claims (6)
1. a kind of lightweight lubricating oil pump with idle gear, it is characterized in that：Including the pump housing（1）, travelling gear（2）, idler shaft（3）, it is lazy
Gear（4）, bolt（5）, the pump housing（1）For aluminum casting, the pump housing（1）It is provided with oil pocket（11）With idler shaft mounting hole
（12）, the idler shaft mounting hole（12）For the circular hole of shoulder hole, including top（121）With the screwed hole of bottom（122）, it is described
Circular hole（121）Aperture be more than screwed hole（122）Aperture, the circular hole（121）With the screwed hole（122）Junction shape
Into a circle boss；The idler shaft（3）For multi-diameter shaft, including thrust button, big shaft part, small shaft part, the idler shaft（3）It is provided with
One leads to through its overall axial bolt mounting holes, the big shaft part provided with a lubrication intersected with bolt mounting holes
Hole（31）；The idler shaft（3）Big shaft part be arranged on idle gear（4）Axis hole in, the big shaft part and idle gear（4）Axle
Bushing is housed between the inwall of hole（6）, the small shaft part is installed in the pump housing（1）Circular hole（121）In；The idler shaft（3）It is small
The length of shaft part is less than the circular hole（121）Depth, form first between the lower end surface and the boss of the small shaft part
Annular gap（7）, the first annular gap（7）With the oil pocket（11）Between be provided with by both connect oil leab
（13）；The bolt（5）Screw rod pass through the idler shaft（3）Bolt mounting holes after be screwed into the pump housing（1）Screwed hole
（122）In, make idler shaft（3）It is fixed on the pump housing（1）On, the bolt（5）Diameter be less than the idler shaft（3）Bolt peace
Fill the aperture in hole, the bolt（5）With the idler shaft（3）Bolt mounting holes inwall between form the second annular gap（8）；
The oil pocket（11）In hydraulic oil pass sequentially through oil leab（13）, first annular gap（7）, the second annular gap（8）, profit
Slide-through hole（31）To bushing（6）And idler shaft（3）Lubrication is provided.
2. the lubricating oil pump according to claim 1 with idle gear, it is characterized in that：The idle gear（4）Axle platform both ends of the surface
On be equipped with drain pan（41）.
3. the lubricating oil pump according to claim 2 with idle gear, it is characterized in that：The idle gear（4）Axle platform both ends of the surface
On be respectively provided with four uniform drain pans（41）.
4. the lubricating oil pump with idle gear according to any one in claim 1-3, it is characterized in that：The bushing（6）With
Idle gear（4）Shaft hole inner wall interference fit.
5. the lubricating oil pump with idle gear according to any one in claim 1-3, it is characterized in that：The idler shaft（3）
On lubrication through hole（31）Intersected vertically with bolt mounting holes.
6. the lubricating oil pump with idle gear according to any one in claim 1-3, it is characterized in that：The idler shaft（3）
Thrust button be provided with loss of weight counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708542.8A CN107289271B (en) | 2017-08-17 | 2017-08-17 | Light oil pump with idle gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708542.8A CN107289271B (en) | 2017-08-17 | 2017-08-17 | Light oil pump with idle gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107289271A true CN107289271A (en) | 2017-10-24 |
| CN107289271B CN107289271B (en) | 2022-12-23 |
Family
ID=60106825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708542.8A Active CN107289271B (en) | 2017-08-17 | 2017-08-17 | Light oil pump with idle gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107289271B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827061A (en) * | 2019-04-08 | 2019-05-31 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump with idle gear of structure optimization |
| CN110513593A (en) * | 2019-09-24 | 2019-11-29 | 联禾厚普（太仓）精密机械有限公司 | A kind of oil pump casing of self-lubricating |
| CN112065956A (en) * | 2020-08-07 | 2020-12-11 | 中国北方发动机研究所(天津) | Idler combination structure with axial fastening function |
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|---|---|---|---|---|
| KR20070062037A (en) * | 2005-12-12 | 2007-06-15 | 현대자동차주식회사 | Discrete type idler gear shaft assembly |
| CN204283862U (en) * | 2014-11-28 | 2015-04-22 | 都江堰龙鼎镁铝科技发展有限公司 | A kind of high strength oil pump casing for motor |
| CN105423106A (en) * | 2015-12-16 | 2016-03-23 | 湖南机油泵股份有限公司 | Engine oil pump provided with idle wheel, and assembly fixture |
| CN106051443A (en) * | 2016-08-17 | 2016-10-26 | 湖南机油泵股份有限公司 | Machine oil pump with idle gear |
| CN206280711U (en) * | 2016-12-20 | 2017-06-27 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump of use aluminium alloy pump body |
| CN107388004A (en) * | 2017-01-03 | 2017-11-24 | 湖南湘衡泵业有限责任公司 | A kind of lubricating oil pump |
| CN207049584U (en) * | 2017-08-17 | 2018-02-27 | 湖南机油泵股份有限公司 | A kind of lightweight lubricating oil pump with idle gear |
-
2017
- 2017-08-17 CN CN201710708542.8A patent/CN107289271B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070062037A (en) * | 2005-12-12 | 2007-06-15 | 현대자동차주식회사 | Discrete type idler gear shaft assembly |
| CN204283862U (en) * | 2014-11-28 | 2015-04-22 | 都江堰龙鼎镁铝科技发展有限公司 | A kind of high strength oil pump casing for motor |
| CN105423106A (en) * | 2015-12-16 | 2016-03-23 | 湖南机油泵股份有限公司 | Engine oil pump provided with idle wheel, and assembly fixture |
| CN106051443A (en) * | 2016-08-17 | 2016-10-26 | 湖南机油泵股份有限公司 | Machine oil pump with idle gear |
| CN206280711U (en) * | 2016-12-20 | 2017-06-27 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump of use aluminium alloy pump body |
| CN107388004A (en) * | 2017-01-03 | 2017-11-24 | 湖南湘衡泵业有限责任公司 | A kind of lubricating oil pump |
| CN207049584U (en) * | 2017-08-17 | 2018-02-27 | 湖南机油泵股份有限公司 | A kind of lightweight lubricating oil pump with idle gear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827061A (en) * | 2019-04-08 | 2019-05-31 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump with idle gear of structure optimization |
| CN110513593A (en) * | 2019-09-24 | 2019-11-29 | 联禾厚普（太仓）精密机械有限公司 | A kind of oil pump casing of self-lubricating |
| CN112065956A (en) * | 2020-08-07 | 2020-12-11 | 中国北方发动机研究所(天津) | Idler combination structure with axial fastening function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107289271B (en) | 2022-12-23 |
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