CN110319049A - Pump shaft supporting structure - Google Patents
Pump shaft supporting structure Download PDFInfo
- Publication number
- CN110319049A CN110319049A CN201910202366.XA CN201910202366A CN110319049A CN 110319049 A CN110319049 A CN 110319049A CN 201910202366 A CN201910202366 A CN 201910202366A CN 110319049 A CN110319049 A CN 110319049A
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- bearing component
- holes
- support holes
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0284—Pressure lubrication using lubricating pumps mounting of the pump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention provides a kind of pump shaft supporting structure, can prevent concentrated wear in the support holes of supporting pump shaft.The pump shaft supporting structure includes the support holes (20) for being set to motor body (10), the pump shaft (30) for penetrating through support holes (20) and being supported by support holes (20), the power transfer mechanism (40) of the side of support holes (20) is set to relative to pump shaft (30), and the pump rotor (50) for being set to the other side of support holes (20) and being driven by pump shaft (30), support holes (20) have diameter holes (21), and the large diameter hole (22) expanding by diameter holes (21), pump shaft (30) is by the first bearing component (61) that is embedded in diameter holes (21), and it is embedded in the second bearing component (62) that in large diameter hole (22) and outer diameter is bigger than first bearing component (61) and is supported.
Description
Technical field
The present invention relates to pump shaft supporting structures.
Background technique
In the past, as pump shaft supporting structure, such as disclosed in Patent Document 1, it is known that a kind of pump supporting structure,
It includes
Be set to the support holes of motor body, the pump shaft that penetrates through the support holes and supported by the support holes, relative to this
Pump shaft and be set to the power transfer mechanism (driven gear) of the side of the support holes and be set to the another of the support holes
Side and by pumping shaft-driven pump rotor.
Existing technical literature
Patent document
Patent document 1:(Japan) No. 6084156 bulletin of patent
Summary of the invention
The technical problems to be solved by the invention
In pump shaft supporting structure as described above, driving force effect is in the side of pump shaft, the load generated by pump rotor
It is applied to the other side, so, there is the active force for attempting to be pushed over to pump shaft effect.In the above prior art, because by propping up
Bearing bore directly supports pump shaft, so there may be concentrated wears in support holes.
Technical problem to be solved by the present invention lies in a kind of pump shaft supporting structure is provided, supporting pump shaft can be prevented
Concentrated wear in support holes.
For solving the technical solution of technical problem
To solve the above-mentioned problems, pump shaft supporting structure of the invention includes
Be set to the support holes of motor body, the pump shaft that penetrates through the support holes and supported by the support holes, relative to this
Pump shaft and be set to the power transfer mechanism of the side of the support holes and be set to the other side of the support holes and by pumping
Shaft-driven pump rotor,
It is characterized in that,
The support holes include diameter holes and the large diameter hole expanding by the diameter holes,
The pump shaft is by the first bearing component that is embedded in the diameter holes and is embedded in the large diameter hole and outer
The diameter second bearing component bigger than the first bearing component is supported.
According to the pump shaft supporting structure, because pump shaft is supported by first bearing component and second bearing component,
Even if having the active force for attempting to be pushed over to pump shaft effect, which also can be by first bearing component and second bearing portion
Part stops.Therefore, concentrated wear in support holes can be prevented.
Moreover, the support holes have diameter holes and the large diameter hole expanding by the diameter holes, first bearing component is chimeric
In diameter holes, second bearing component is embedded in large diameter hole, so the first, second bearing portion can be inserted into from large diameter hole side
Part, and can prevent the inner peripheral surface of the outer peripheral surface for making first bearing component when first bearing component is inserted into and large diameter hole from occurring
Deform such situation.Therefore, because the first, second parts of bearings can be installed well respectively, so pump shaft can be obtained
Good bearing state.
In the pump shaft supporting structure,
It can be configured to the large diameter hole to configure relative to the diameter holes in the power transfer mechanism side.
It, can because being configured with the second bearing component of major diameter in the side far from pump rotor using above structure
Stop the active force for attempting to push over pump shaft well.
In the pump shaft supporting structure,
The pump rotor is the pump rotor of the oil pump configured in oil sump,
The second bearing component is needle bearing, is capable of forming the knot to have oil sealing in the power transfer mechanism side
Structure.
Using above structure, can prevent from attempting the machine to oil sump external leakage by the gap of the needle roller of needle bearing
Oil stream goes out.
In the pump shaft supporting structure,
The first bearing component is also needle bearing,
It is capable of forming to be pressed into first bearing component in the diameter holes, being pressed into second bearing portion in the large diameter hole
The structure of part.
Using above structure, because of the rigidity for preventing from being able to maintain that motor body due to support holes are enlarged, and because preventing
In the indentation of first bearing component, first bearing component outer peripheral surface and large diameter hole inner peripheral surface deform and make the first, second parts of bearings
With good indentation state, thus, it is possible to supporting pump shafts well.
In the pump shaft supporting structure,
The first bearing component is capable of forming the structure configured to separate in the axial direction with the second bearing component.
Using above structure, it can further stop the active force for attempting to push over pump shaft well.
Detailed description of the invention
Fig. 1 is the partial sectional view for indicating the embodiment of pump shaft supporting structure of the invention.
Fig. 2 is the magnified partial view of Fig. 1.
Specific embodiment
In the following, being illustrated referring to attached drawing for the embodiment of pump shaft supporting structure of the invention.It needs to illustrate
It is in the drawings, identical label to be used for identical part or comparable part.
As shown in Figure 1, the pump shaft supporting structure 1 of the embodiment includes
The pump for being set to the support holes 20 of motor body 10, penetrating through the support holes 20 and being supported by the support holes 20
Axis 30 is set to the power transfer mechanism 40 of the side of the support holes 20 relative to the pump shaft 30 and is set to described
The other side of support holes 20 and the pump rotor 50 driven by pump shaft 30.
As shown in Fig. 2, support holes 20 include diameter holes 21 and the large diameter hole 22 expanding by the diameter holes 21.
Pump shaft 30 by the first bearing component 61 that is embedded in diameter holes 21 and be embedded in large diameter hole 22 and have than
The second bearing component 62 of the big outer diameter D 2 of first bearing component 61 is supported.
According to the pump shaft supporting structure, because pump shaft 30 is propped up by first bearing component 61 and second bearing component 62
It holds, so, it, also can be by first bearing component 61 and the second axis even if having the active force for attempting to be pushed over to the effect of pump shaft 30
Bearing portion part 62 stops the active force.Therefore, concentrated wear in support holes 20 can be prevented.
Because support holes 20 include diameter holes 21 and the large diameter hole 22 expanding by the diameter holes 21, first bearing component
61 are embedded in diameter holes 21, and second bearing component 62 is embedded in large diameter hole 22, so can successively insert from 22 side of large diameter hole
Enter the first, second parts of bearings 61,62, and can prevent from making first bearing component 61 when first bearing component 61 is inserted into
Outer peripheral surface 61s and the inner peripheral surface 22s of large diameter hole 22 deform such situation.Therefore, because can respectively well installation first,
Second bearing component 61,62, so the good bearing state of pump shaft 30 can be obtained.
Assuming that support holes 20 are single diameter and do not have heavy caliber, then when first bearing component 61 is inserted into inside,
First bearing component 61 reach specified position before because unnecessarily with the inner circumferential face contact of support holes 20, first
The outer peripheral surface 61s of parts of bearings 61 and the inner peripheral surface of support holes 20 are deformed in which may not be necessary, but according to the embodiment,
It can prevent above-mentioned situation.
Large diameter hole 22 is configured relative to diameter holes 21 in 40 side of power transfer mechanism.
Using above structure, because being configured with the second bearing component 62 of major diameter in the side far from pump rotor 50,
It can stop the active force for attempting to push over pump shaft 30 well.
As shown in Figure 1, pump rotor 50 is the pump rotor of the oil pump OP configured in oil sump 11.As shown in Fig. 2, the second axis
Bearing portion part 62 is needle bearing, has oil sealing 63 in 40 side of power transfer mechanism.
Using above structure, can prevent from being attempted by the gap of the needle roller of needle bearing 62 to 11 external leakage of oil sump
Machine oil it is (not shown) outflow.
In this embodiment, first bearing component 61 is also needle bearing, is pressed into thef first bearing section in diameter holes 21
Part 61 is pressed into second bearing component 62 in large diameter hole 22.
Using above structure, because of the rigidity for preventing from being able to maintain that motor body 10 due to support holes 20 are enlarged, and because
First bearing component 61 outer peripheral surface 61s and 22 inner peripheral surface 22s of large diameter hole deformation when first bearing component 61 being prevented to be pressed into and make the
One, second bearing component 61,62 has good indentation state, and thus, it is possible to supporting pump shaft 30 well.
First bearing component 61 is separated with second bearing component 62 in the axial direction and is configured.
Using above structure, it can further stop the active force for attempting to push over pump shaft 30 well.
As shown in Figure 1, the pump rotor 50 of the embodiment include the rotor 51 of scavenge oil pump SP, feed pump FP rotor 52,
And DCT (Dual Clutch Transmission: the double-clutch speed changer) rotor 53 of pump DP.
It is above-mentioned pump shaft 30 be equipped with multiple rotors structure in because act on pump shaft 30 load increase, attempt
The active force for pushing over pump shaft 30 also increases.
Therefore, the structure of the invention is especially effective in the case where pump shaft is equipped with multiple rotors.
Pump shaft 30 include using come the power of self-driven mechanism 40 come drive rotor 50 drive shaft 31 and with the drive
The driven shaft 32 that moving axis 31 links via connector portions 33, is equipped with above-mentioned each rotor 51~53 in driven shaft 32.
Connector portions 33 are set to driven shaft 32 by being set to the recess portion 31h of drive shaft 31 and being embedded in recess portion 31h
Protrusion 32p is constituted.
Although the power transfer mechanism 40 of the embodiment is made of the gear for being fixed on drive shaft 30, can also be by chain
Wheel is constituted.The power for having the crankshaft (not shown) from engine is transmitted to power transfer mechanism 40.
Above, although explaining the embodiment of the present invention, the present invention is not limited to the above embodiments, energy
It is enough that deformation is appropriately carried out in the range of present subject matter.
Description of symbols
10 motor bodies；11 oil sumps；20 support holes；21 diameter holes；22 large diameter holes；30 pump shafts；40 power
Transmission mechanism；50 pump rotors；61 first bearing components；62 second bearing components；OP oil pump.
Claims (5)
1. a kind of pump shaft supporting structure, comprising:
The support holes (20) of motor body (10) are set to, the support holes (20) are penetrated through and are supported by the support holes (20)
Pump shaft (30), the side for being set to the support holes (20) relative to the pump shaft (30) power transfer mechanism (40),
And the pump rotor (50) for being set to the other side of the support holes (20) and being driven by the pump shaft (30), which is characterized in that
The support holes (20) include diameter holes (21) and the large diameter hole (22) expanding by the diameter holes (21),
The pump shaft (30) is by the first bearing component (61) that is embedded in the diameter holes (21) and is embedded in the major diameter
In hole (22) and second bearing component (62) that outer diameter is bigger than the first bearing component (61) is supported.
2. pump shaft supporting structure as described in claim 1, which is characterized in that
The large diameter hole (22) configures relative to the diameter holes (21) in the power transfer mechanism (40) side.
3. pump shaft supporting structure as claimed in claim 2, which is characterized in that
The pump rotor (50) is the pump rotor of the oil pump (OP) configured in oil sump (11),
The second bearing component (62) is needle bearing, has oil sealing (63) in the power transfer mechanism (40) side.
4. pump shaft supporting structure as claimed in claim 3, which is characterized in that
The first bearing component (61) is also needle bearing,
First bearing component (61) are pressed into the diameter holes (21), second bearing component is pressed into the large diameter hole (22)
(62)。
5. pump shaft supporting structure as claimed in claim 4, which is characterized in that
The first bearing component (61) separates with the second bearing component (62) in the axial direction and is configured.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018065157A JP2019173710A (en) | 2018-03-29 | 2018-03-29 | Pump shaft support structure |
| JP2018-065157 | 2018-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319049A true CN110319049A (en) | 2019-10-11 |
Family
ID=68112810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202366.XA Withdrawn CN110319049A (en) | 2018-03-29 | 2019-03-18 | Pump shaft supporting structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019173710A (en) |
| CN (1) | CN110319049A (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856422Y2 (en) * | 1979-09-14 | 1983-12-26 | 富士電機株式会社 | Bearing mechanism for small rotating equipment |
| JPS59127957U (en) * | 1983-02-18 | 1984-08-28 | 住友重機械工業株式会社 | Output structure of planetary gear reducer |
| JP2004263838A (en) * | 2003-03-04 | 2004-09-24 | Koyo Seiko Co Ltd | Roller bearing device |
| JP5360120B2 (en) * | 2010-06-21 | 2013-12-04 | マツダ株式会社 | Engine balancer equipment |
| JP6047999B2 (en) * | 2012-08-30 | 2016-12-21 | 日本精工株式会社 | Rotating support device |
| JP6084156B2 (en) * | 2013-12-20 | 2017-02-22 | 本田技研工業株式会社 | Dry sump engine |
| JP6581423B2 (en) * | 2015-08-05 | 2019-09-25 | Ntn株式会社 | Anomaly detection device for rolling bearings |
| US10359077B2 (en) * | 2015-08-05 | 2019-07-23 | Ntn Corporation | Rolling bearing with abnormality detector |
-
2018
- 2018-03-29 JP JP2018065157A patent/JP2019173710A/en active Pending
-
2019
- 2019-03-18 CN CN201910202366.XA patent/CN110319049A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019173710A (en) | 2019-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191011 |