CN208719806U - It is a kind of to provide the lubricating oil pump of lubrication to idle gear bushing - Google Patents
It is a kind of to provide the lubricating oil pump of lubrication to idle gear bushing Download PDFInfo
- Publication number
- CN208719806U CN208719806U CN201821320970.XU CN201821320970U CN208719806U CN 208719806 U CN208719806 U CN 208719806U CN 201821320970 U CN201821320970 U CN 201821320970U CN 208719806 U CN208719806 U CN 208719806U
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- China
- Prior art keywords
- hole
- bushing
- idler shaft
- pump
- idle gear
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Abstract
The utility model provide it is a kind of can to idle gear bushing provide lubrication lubricating oil pump, including the pump housing, pump cover, pump shaft, pump driver gear, idle gear, idler shaft, the pump housing is equipped with rotor chamber and idle pulley shaft mounting hole, bushing is housed in the axis hole of the idle gear, the idle gear is sleeved on the upper section of the idler shaft by the bushing and can rotate around the idler shaft, and the lower section of the idler shaft is fixedly mounted in the idle pulley shaft mounting hole；The first oil duct for being connected to the two is equipped between the rotor chamber and the idle pulley shaft mounting hole, the idler shaft is equipped with the second axial oil duct, one end of second oil duct is equipped with the hole A docked with the first oil duct, the other end is equipped with the hole B being lubricated to bushing, and the hole A and the hole B are radial hole；Wedge gap is formed between the idler shaft and the bushing, the hole B is directed at the big oral area point of the wedge gap.This structure can provide optimal lubricant effect to bushing.
Description
Technical field
The utility model relates to a kind of engine lubrication system component, in particular to a kind of lubricating oil pump equipped with idle gear.
Background technique
Existing huge discharge lubricating oil pump is typically mounted in the machine oil shell below engine crankcase, passes through engine crankshaft
On gear drive transmission gear of engine oil pump, since engine crankcase is very big, the center of machine oil pump drive shaft and crankshaft away from than
It is larger, under the premise of transmission ratio determines, if simple relies on the gear diameter increased on transmission gear of engine oil pump and crankshaft
To match center away from the gear being bound to cause on crankshaft is excessive with transmission gear of engine oil pump, will increase cost in this way, in addition starts
The machine also gear very big without enough space layout diameters.So must increase between transmission gear of engine oil pump and crankshaft toothed wheel
Add an idle gear that the gear driving force on crankshaft could be transmitted on transmission gear of engine oil pump, can both reduce cost in this way,
Also engine structure can be made more compact, but following shortcoming can be generated again simultaneously: huge discharge lubricating oil pump load at work
Very big, the machine oil for needing to recycle between idle gear axis hole and idler shaft is lubricated and radiates, idle gear axis hole and idler shaft it
Between if will cause idle gear axis hole and the failures such as idler shaft is burnt to death, seizes, engine operation without good lubrication and heat dissipation
When lubrication, the machine oil that uses of heat dissipation be all that lubricating oil pump conveys, once idle gear cannot work, lubricating oil pump can also stop work
Make, entire engine as without oil lubricating, heat dissipation and there is a phenomenon where scuffings of cylinder bore, bearing liner burnout.
Utility model content
The lubricating oil pump of lubrication can be provided to idle gear bushing the technical problem to be solved by the present invention is to provide a kind of, protected
Demonstrate,prove the reliability of idle gear work.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: a kind of to mention to idle gear bushing
For the lubricating oil pump of lubrication, including the pump housing, pump cover, pump shaft, pump driver gear, idle gear, idler shaft, the pump housing is equipped with rotor
Chamber and idle pulley shaft mounting hole are equipped with bushing in the axis hole of the idle gear, and the idle gear is sleeved on described lazy by the bushing
The upper section of wheel shaft can simultaneously be rotated around the idler shaft, and the lower section of the idler shaft is fixedly mounted in the idle pulley shaft mounting hole；Institute
The first oil duct for being equipped between rotor chamber and the idle pulley shaft mounting hole and being connected to the two is stated, the idler shaft is equipped with axial
Second oil duct, one end of second oil duct be equipped with the hole A dock with the first oil duct, and the other end is equipped with being lubricated bushing
The hole B, the hole A and the hole B are radial hole；Wedge gap is formed between the idler shaft and the bushing, the hole B is directed at institute
State the big oral area point of wedge gap.
Preferably, the aperture in the hole A is greater than the aperture of first oil duct.
Preferably, the lower section of the idler shaft is fixedly mounted in an interference fit in the idle pulley shaft mounting hole.
Further, the outer peripheral surface of the idler shaft is equipped with the groove of annular in the position in the correspondence hole A.
In above-mentioned technical proposal, the high pressure oil in rotor chamber passes sequentially through the first oil duct, the hole A, the second oil duct, the hole B
The gap between idler shaft and bushing is flowed into, idle gear bushing is lubricated, also, due to being formed between idler shaft and bushing
Wedge gap, the hole B are directed at the big oral area point of wedge gap, thus can provide optimal lubricant effect to bushing.Because of profit
The necessary condition that lubricating oil film is formed is: two surfaces of 1. opposite slidings necessarily are formed convergent wedge gap；2. being separated by oil film
Two surfaces must have enough relative sliding velocities, the direction of motion must be such that lubricating oil is flowed by big mouth, from osculum flow out；
3. lubricating oil must have certain viscosity, fuel feeding is abundant.Since the hole A, the second oil duct, the hole B are all disposed on idler shaft, and the
Two oil ducts are axially arranged, even if the direction in such hole A and the hole B, not in same angle, remaining on can be by the second oil duct
Connection.It in processing, is analyzed, is determined wedge-shaped between idler shaft and bushing according to mounting structure and strength of gear, gravity etc.
For the big oral area quartile in gap in which direction, then determine the hole B on idler shaft on this basis opens up position, thus can
After guaranteeing that idler shaft is installed on the pump housing, the hole A is directed at the first oil duct, and the hole B is directed at the big oral area point of wedge gap.
Detailed description of the invention
Fig. 1 is the lubricating oil pump overall structure diagram in the utility model embodiment；
Appended drawing reference are as follows:
1 --- the pump housing 2 --- pump cover 3 --- pump driver gear
4 --- pump shaft 5 --- idle gear 6 --- idler shafts
7 --- bushing 8 --- the first oil duct 9 --- holes A
10 --- the second oil duct 11 --- holes B.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.
In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.In the utility model
Description in, the meaning of " plurality " is two or more, unless otherwise specifically defined.In retouching for the utility model
In stating, it should be noted that unless otherwise specified and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as, mechanical connection or electrical connection be can be, the connection being also possible to inside two elements can be directly connected, and can also lead to
It crosses intermediary to be indirectly connected, for the ordinary skill in the art, can understand the term as the case may be
Concrete meaning.
As shown in Figure 1, the preferred embodiment of the utility model is: a kind of to provide the machine oil of lubrication to idle gear bushing
Pump, including the pump housing 1, pump cover 2, pump driver gear 3, pump shaft 4, idle gear 5, idler shaft 6, the pump housing 1 be equipped with rotor chamber and
Idle pulley shaft mounting hole, bushing 7 is equipped in the axis hole of the idle gear 5, and the idle gear 5 is sleeved on described lazy by the bushing 7
The upper section of wheel shaft 6 can simultaneously be rotated around the idler shaft 6, and the lower section of the idler shaft 6 is fixedly mounted on institute in an interference fit
It states in idle pulley shaft mounting hole；The first oil duct 8 for being connected to the two, institute are equipped between the rotor chamber and the idle pulley shaft mounting hole
It states idler shaft 6 and is equipped with the second axial oil duct 10, one end of second oil duct 10 is equipped with the hole A docked with the first oil duct 8
9, the other end is equipped with the hole B 11 being lubricated to bushing 7, and the hole A 9 and the hole B 11 are radial hole；The idler shaft 6 and institute
It states and forms wedge gap between bushing 7, the hole B 11 is directed at the big oral area point of the wedge gap.
In order to guarantee the docking between the first oil duct 8 and the hole A 9, the aperture that the hole A 9 can be set is greater than the hole of the first oil duct 8
Diameter can also set an annular groove in the position in the outer peripheral surface corresponding A hole 9 of idler shaft 6.
In above-mentioned technical proposal, the high pressure oil in rotor chamber pass sequentially through the first oil duct 8, the hole A 9, the second oil duct 10,
The hole B 11 flows into the gap between idler shaft 6 and bushing 7, is lubricated to idle gear bushing 7, also, due to idler shaft 6 and lining
Wedge gap is formed between set 7, the hole B 11 is directed at the big oral area point of wedge gap, thus can provide optimal profit to bushing 7
Sliding effect.Because the necessary condition that lubricating oil film is formed is: two surfaces of 1. opposite slidings necessarily are formed between convergent wedge shape
Gap；2. must have enough relative sliding velocities by two separated surfaces of oil film, the direction of motion must make lubricating oil by big mouth
It flows into, is flowed out from osculum；3. lubricating oil must have certain viscosity, fuel feeding is abundant.Due to the hole A 9, the second oil duct 10, the hole B 11
It is all disposed on idler shaft 6, and the second oil duct 10 is axially arranged, even if the direction in such hole A 9 and the hole B 11 is not same
Angle, remaining on can be connected to by the second oil duct 10.In processing, carried out according to mounting structure and strength of gear, gravity etc.
Analysis determines that the big oral area quartile of wedge gap between idler shaft 6 and bushing 7 in which direction, is then come true on this basis
That determines the hole B 11 on idler shaft opens up position, this ensures that after idler shaft 6 is installed on the pump housing 1, first oil of the alignment of the hole A 9
Road 8, the hole B 11 are directed at the big oral area point of wedge gap.
Above-described embodiment is the preferable implementation of the utility model, and in addition to this, the utility model can be with other sides
Formula realizes that any obvious replacement is in the protection model of the utility model under the premise of not departing from the technical program design
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the improvement of the utility model compared with the existing technology it
Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
A little other elements, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the interior of the utility model
Hold.
Claims (4)
1. a kind of can provide idle gear bushing the lubricating oil pump of lubrication, including the pump housing (1), pump cover (2), pump driver gear (3), pump
Axis (4), idle gear (5), idler shaft (6), the pump housing (1) are equipped with rotor chamber and idle pulley shaft mounting hole, it is characterised in that: institute
It states equipped with bushing (7) in the axis hole of idle gear (5), the idle gear (5) is sleeved on the idler shaft (6) by the bushing (7)
Upper section and can be rotated around the idler shaft (6), the lower section of the idler shaft (6) is fixedly mounted in the idle pulley shaft mounting hole；
It is equipped with the first oil duct (8) for being connected to the two between the rotor chamber and the idle pulley shaft mounting hole, is set on the idler shaft (6)
There is axial the second oil duct (10), one end of second oil duct (10) is equipped with the hole A (9) docked with the first oil duct (8), another
End is equipped with the hole B (11) being lubricated to bushing (7), and the hole A (9) and the hole B (11) are radial hole；The idler shaft (6)
Wedge gap is formed between the bushing (7), the hole B (11) is directed at the big oral area point of the wedge gap.
2. according to claim 1 can provide the lubricating oil pump of lubrication to idle gear bushing, it is characterized in that: the hole A (9)
Aperture is greater than the aperture of first oil duct (8).
3. according to claim 1 can provide the lubricating oil pump of lubrication to idle gear bushing, it is characterized in that: the idler shaft
(6) lower section is fixedly mounted in an interference fit in the idle pulley shaft mounting hole.
4. as claimed in any of claims 1 to 3 can provide the lubricating oil pump of lubrication, feature to idle gear bushing
Be: the outer peripheral surface of the idler shaft (6) is equipped with the groove of annular in the position of the correspondence hole A (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821320970.XU CN208719806U (en) | 2018-08-16 | 2018-08-16 | It is a kind of to provide the lubricating oil pump of lubrication to idle gear bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821320970.XU CN208719806U (en) | 2018-08-16 | 2018-08-16 | It is a kind of to provide the lubricating oil pump of lubrication to idle gear bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719806U true CN208719806U (en) | 2019-04-09 |
Family
ID=65978029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821320970.XU Active CN208719806U (en) | 2018-08-16 | 2018-08-16 | It is a kind of to provide the lubricating oil pump of lubrication to idle gear bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208719806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662422A (en) * | 2018-08-16 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump that lubrication can be provided idle gear bushing |
-
2018
- 2018-08-16 CN CN201821320970.XU patent/CN208719806U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662422A (en) * | 2018-08-16 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump that lubrication can be provided idle gear bushing |
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