CN207049584U - 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
- CN207049584U CN207049584U CN201721031804.3U CN201721031804U CN207049584U CN 207049584 U CN207049584 U CN 207049584U CN 201721031804 U CN201721031804 U CN 201721031804U CN 207049584 U CN207049584 U CN 207049584U
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- Prior art keywords
- hole
- shaft
- idle gear
- idler shaft
- bolt
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Abstract
The utility model 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 idle pulley shaft mounting hole, idle pulley shaft mounting hole includes the circular hole on top and the screwed hole of bottom, the aperture of circular hole is more than the circle boss of junction formation one in the aperture of screwed hole, 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
It the utility model is related 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 determines, 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 on bent axle and transmission gear of engine oil pump certainly will be caused excessive, can so increase cost, start in addition
Machine is also without the very big gear of enough space placement diameters.So it must increase between transmission gear of engine oil pump and crankshaft toothed wheel
Add an idle gear that the gear driving force on bent axle could be delivered on transmission gear of engine oil pump, so can both reduce 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 lacking for heavier mass be present in ironcasting
Point, if the material of the pump housing is changed into aluminum casting, although can mitigate weight, idler shaft cannot use the side of interference fit
Formula is arranged on the pump housing of aluminum, it is therefore necessary to a kind of new mounting means and structure are used 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.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of lightweight lubricating oil pump with idle gear.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：A kind of lightweight machine with idle gear
Oil pump, including the pump housing, travelling gear, idler shaft, idle gear, bolt, the pump housing are aluminum casting, and the pump housing is provided with oil pocket
With idle pulley shaft mounting hole, the idle pulley shaft mounting hole is shoulder hole, including the circular hole on top and the screwed hole of bottom, the circular hole
Aperture be more than the aperture of screwed hole, the junction of the circular hole and the screwed hole forms a circle boss；The idler shaft is
Multi-diameter shaft, including thrust button, big shaft part, small shaft part, the idler shaft are provided with one through its overall axial bolt peace
Hole is filled, 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
In the axis hole of idle gear, bushing is housed between the shaft hole inner wall of the big shaft part and idle gear, the small shaft part is 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, the lower end surface of the small shaft part and institute
State and form first annular gap between boss, the lubrication for connecting both is provided between the first annular gap and the oil pocket
Oil duct；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, makes idle pulley
Axle is fixed on the pump housing, and the diameter of the bolt is less than the aperture of the bolt mounting holes of the idler shaft, the bolt with it is described
The second annular gap is formed between the bolt mounting holes inwall of idler shaft；Hydraulic oil in the 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.
In above-mentioned technical proposal, because the pump housing is that 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, solved the installation question between idler shaft and the pump housing again.Simultaneously as the small shaft part of idler shaft
Length be less than idle pulley 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, thus dexterously forms first annular gap and the second annular gap, and the hydraulic oil in 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
The gap crossed between idler shaft and bushing axis hole continues to flow toward idle gear shaft platform both ends, makes machine oil from the axle you face of idle gear two
Leak out and return in machine oil shell, the oil circulation circulation being achieved in that between idle gear axis hole and idler shaft, so as to
Enough continual idle gears to the rotation of big load provide lubrication, radiating, avoid idle gear axis hole and burn to death, embrace with idler shaft
The failures such as axle.
The further technical scheme of the utility model is：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, can so accelerate between bushing axis hole and the big shaft part of idler shaft
The flow velocity of machine oil, make 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 utility model embodiment；
Fig. 2 is the structural representation of the utility model embodiment middle pump body；
Fig. 3 is the structure enlargement diagram of the part A in Fig. 1；
Fig. 4 is the structural representation of idle gear in the utility model embodiment；
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 --- idle pulley 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 utility model is made with reference to embodiment and accompanying drawing further
Explanation, the content that embodiment refers to not to restriction of the present utility model.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.In the utility model
Description in, " multiple " are meant that two or more, unless otherwise specifically defined.Retouched of the present utility model
, it is necessary to which explanation, unless otherwise prescribed and is limited, term " installation ", " connected ", " connection " should be interpreted broadly, example in stating
Such as, it can be mechanical connection or electrical connection or the connection of two element internals, can be joined directly together, can also lead to
Cross intermediary to be indirectly connected, for the ordinary skill in the art, the term can be understood as the case may be
Concrete meaning.
As shown in Figures 1 to 3, preferred embodiment of the present utility model is：A kind of lightweight lubricating oil pump with idle gear, including pump
Body 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 the He of oil pocket 11
Idle pulley shaft mounting hole 12, the idle pulley shaft mounting hole 12 are shoulder hole, including the circular hole 121 on top and the screwed hole 122 of bottom,
The aperture of the circular hole 121 is more than the aperture of screwed hole 122, and the junction of the circular hole 121 and the screwed hole 122 forms one
Enclose boss；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,
The idler shaft 3 is provided with one and is provided with one and bolt through its overall axial bolt mounting holes, the big shaft part
The lubrication through hole 31 that mounting hole intersects vertically；The big shaft part of the idler shaft 3 is arranged in the axis hole of idle gear 4, the big axle
Bushing 6 is housed, the shaft hole inner wall of the bushing 6 and idle gear 4 is interference fitted, described between section and the shaft hole inner wall of idle gear 4
Small shaft part 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,
First annular gap 7, the first annular gap 7 and the oil are formed between the lower end surface and the boss of the small shaft part
The oil leab 13 for connecting both is provided between chamber 11；The screw rod of the bolt 5 passes through the bolt mounting holes of the idler shaft 3
It is screwed into afterwards in the screwed hole 122 of the pump housing 1, idler shaft 3 is fixed on the pump housing 1, the diameter of the bolt 5 is less than described lazy
The aperture of the bolt mounting holes of wheel shaft 3, the second ring is formed between the bolt mounting holes inwall of the bolt 5 and the idler shaft 3
Shape gap 8；Hydraulic oil in the oil pocket 11 passes sequentially through oil leab 13, first annular gap 7, the second annular gap 8, profit
Slide-through hole 31 provides lubrication to bushing 6 and idler shaft 3.
In above-mentioned technical proposal, because the pump housing 1 is that 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, has solved the installation question between idler shaft 3 and the pump housing 1 again.Simultaneously as idle pulley
The length of 3 small shaft part of axle is less than the depth of the circular hole 121 of idle pulley 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 first annular annular gap 8 of gap 7 and second, the high pressure in 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 continue to flow toward the axle platform both ends of idle gear 4 by the gap between idler shaft 3 and bushing 3,
Make machine oil leak out from 4 liang of axle you faces of idle gear to return in machine oil shell, 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 the continual idle gear 4 to the rotation of big load, is avoided
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.Because the axle you face of idle gear 4 is 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 3 big shaft part of idler shaft.
Above-described embodiment is the preferable implementation of the utility model, and in addition, the utility model can be with other sides
Formula is realized, any on the premise of the technical program design is not departed from obviously to replace in protection model of the present utility model
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the utility model relative to prior art improvement it
Place, some accompanying drawings of the present utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
A little other elements, those of ordinary skill in the art should be aware that these elements omitted also may make up in of the present utility model
Hold.
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 idle pulley shaft mounting hole
（12）, the idle pulley 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 arranged on 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 |
|---|---|---|---|
| CN201721031804.3U CN207049584U (en) | 2017-08-17 | 2017-08-17 | A kind of lightweight lubricating oil pump with idle gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721031804.3U CN207049584U (en) | 2017-08-17 | 2017-08-17 | A kind of lightweight lubricating oil pump with idle gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049584U true CN207049584U (en) | 2018-02-27 |
Family
ID=61503162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721031804.3U Withdrawn - After Issue CN207049584U (en) | 2017-08-17 | 2017-08-17 | A kind of lightweight lubricating oil pump with idle gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289271A (en) * | 2017-08-17 | 2017-10-24 | 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 CN201721031804.3U patent/CN207049584U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289271A (en) * | 2017-08-17 | 2017-10-24 | 湖南机油泵股份有限公司 | A kind of lightweight lubricating oil pump with idle gear |
| CN107289271B (en) * | 2017-08-17 | 2022-12-23 | 湖南机油泵股份有限公司 | Light oil pump with idle gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180227 Effective date of abandoning: 20221223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180227 Effective date of abandoning: 20221223 |