CN207049583U - A kind of dual-rotor structure lubricating oil pump - Google Patents
A kind of dual-rotor structure lubricating oil pump Download PDFInfo
- Publication number
- CN207049583U CN207049583U CN201721029440.5U CN201721029440U CN207049583U CN 207049583 U CN207049583 U CN 207049583U CN 201721029440 U CN201721029440 U CN 201721029440U CN 207049583 U CN207049583 U CN 207049583U
- Authority
- CN
- China
- Prior art keywords
- rotor
- oil
- pump
- internal rotor
- outer rotor
- 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- Withdrawn - After Issue
Links
Landscapes
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
A kind of dual-rotor structure lubricating oil pump provided by the utility model, is related to machine oil pump technical field, and it includes the pump housing, pump cover, driving shaft and internal rotor and outer rotor in pump housing rotor chamber；Oil inlet and oil-out are offered on the pump housing, internal rotor is arranged on driving shaft, and driving shaft passes through the pump housing and pump cover, and outer rotor is sleeved on outside internal rotor, it is characterised in that：Internal rotor includes the first internal rotor and the second internal rotor, outer rotor includes the first outer rotor and the second outer rotor, the thickness of first outer rotor is more than the thickness of the first internal rotor, and the first outer rotor is sleeved on the first internal rotor and the second internal rotor, and the second outer rotor is sleeved on the second internal rotor.The utility model is not only simple to manufacture, and pumps out that oil mass is big, oil pressure is high, is applicable on big-block engine.
Description
Technical field
Machine oil pump technical field is the utility model is related to, especially a kind of rotor-type oil pump.
Background technology
In lubricating system, the effect of lubricating oil pump is after machine oil is brought up into certain pressure, to be forcibly sent to engine
On the moving surface of each part, rotor-type oil pump, as one kind of lubricating oil pump, have compact-sized, appearance and size is small, weight
Gently, the features such as oil suction vacuum is larger, and pump oil amount is big, and fuel feeding uniformity is good, and cost is low, it is generally used for medium and small engine
On, and in order to expand the application of rotor-type oil pump, make it supporting with big-block engine, designer generally requires
The size of lubricating oil pump is adjusted, mainly increases the thickness of rotor part, to realize higher oil pressure and discharge capacity.
Powder metallurgy, it is to produce metal dust or by the use of metal dust as raw material, by shaping and sintering, manufactures metal material
The technology of material, composite and all kinds product, it has unique chemical composition and machinery, physical property, and
These performances can not be obtained with traditional casting method, it also have energy-conservation, material saving, excellent performance, Product Precision height and
The advantages that stability is good, therefore be widely used in and make various types of lubricating oil pump, wherein, small rotor-type lubricating oil pump（With
Medium and small engine is supporting）It is no exception, but because the mobility of metal dust compares molten metal（The raw material of founding）It is poor,
Therefore powder metallurgical technique is limited to the shape and size of product, it is impossible to large product is made.
Analyzed based on more than, we understand, the supporting rotor-type oil pump with big-block engine, because rotor part is too thick
And it is difficult to adopt powder metallurgical technique to make, it is difficult to reach technological requirement again if made using traditional casting method, because
This, in machine oil pump technical field, researches and develops that a kind of manufacturing process is simple, and can also realize the rotator type of high oil pressure, huge discharge
Lubricating oil pump, always as the emphasis of field concern.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of dual-rotor structure lubricating oil pump, and it not only manufactures letter
It is single, and pump out that oil mass is big, oil pressure is high, it is applicable on big-block engine.
To achieve these goals, the utility model adopts the following technical scheme that：Including the pump housing, pump cover, driving shaft and position
In internal rotor and outer rotor in the pump housing, the internal rotor is fixed on driving shaft, and the outer rotor is sleeved on internal rotor, institute
State and oil inlet and oil-out are offered on the pump housing, the internal rotor includes the first internal rotor and the second internal rotor, and described first
The end face of internal rotor and the end face of the second internal rotor are brought into close contact, and the outer rotor includes the first outer rotor and the second outer rotor,
And the end face of first outer rotor and the second outer rotor is brought into close contact, the thickness of second internal rotor is more than the second outer rotor
Thickness, and the thickness sum of first internal rotor, the second internal rotor be equal to the first outer rotor, the second outer rotor thickness it
With.
Further, oil sucting cavity and oil-discharging cavity are offered on the pump housing and pump cover, the oil inlet connection pump housing
The oil sucting cavity of oil sucting cavity and pump cover, the oil-out include the first oil-out and the second oil-out, the first oil-out connection
The oil-discharging cavity of the pump housing, the oil-discharging cavity of the second oil-out connection pump cover.
Further, key connection is used between the driving shaft and the first internal rotor, the second internal rotor.
Further, the valve chamber of connection oil-discharging cavity is offered on the pump cover, pressure limiting valve is provided with the valve chamber, it is described
The pump housing is provided with one end connection valve chamber, the drain path of other end connection engine driving system, in the state that pressure limiting valve is opened
Under, the fluid of pump cover oil-discharging cavity can enter drain path, let out toward in the transmission system of engine.
Further, the pressure limiting valve includes plunger and spring, and the spring one end is located in plunger, the other end is fixed
In valve chamber bottom, the plunger is by the hydraulic coupling of oil-discharging cavity and the elastic force of spring.
Preferably, the pressure limiting valve also includes regulating bolt, the cover plate installed in valve chamber bottom and is slidably mounted on valve chamber
Interior closure, the spring one end is located in plunger, the other end is fixed on closure, the regulating bolt through cover plate and
Both threaded connections, the end of the regulating bolt contacts with closure, head end is located at outside cover plate.
The beneficial effects of the utility model are：A kind of dual-rotor structure lubricating oil pump, is provided with two sets of rotors in its pump housing, and two
Powder metallurgical technique manufacture can be respectively adopted in set rotor, reduce manufacture difficulty；Because the first outer rotor had both been sleeved in first
On rotor, and also it is sleeved on the second internal rotor, therefore the synchronism that two sets of rotors rotate can be effectively improved, and due to two sets turns
Son can work asynchronously, thus it is of the present utility model pump out oil pressure and flow can reach high values, be applicable to the utility model
On big-block engine.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model embodiment；
Fig. 2 is the side view in the utility model embodiment；
Fig. 3 is the sectional view of pressure limiting valve in the utility model embodiment.
Reference is：
1 --- the pump housing 2 --- pump cover 3 --- driving shaft
4 --- internal rotor 41 --- the first internal rotor 42 --- second internal rotors
5 --- outer rotor 51 --- the first outer rotor 52 --- second outer rotors
6 --- oil inlet 7 --- oil-out 71 --- first oil-outs
72 --- the second oil-out 8 --- key 9 --- pressure limiting valves
91 --- plunger 92 --- spring 93 --- regulating bolts
94 --- cover plate 95 --- closure 10 --- pressure release passages
11 --- travelling gear.
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 " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise prescribed and is limited, term " installation ", " phase in description of the present utility model
Even ", " connection " should be interpreted broadly, for example, it may be mechanical connection or the company of electrical connection or two element internals
It is logical, can be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can
To understand the concrete meaning of the term as the case may be.
As Figure 1-3, a kind of dual-rotor structure lubricating oil pump, including the pump housing 1, pump cover 2, driving shaft 3 and positioned at the pump housing 1
Internal rotor 4 and outer rotor 5, the internal rotor 4 in rotor chamber are fixed on driving shaft 3, and the outer rotor 5 is sleeved on internal rotor
Outside 4, oil inlet 6 and oil-out 7 are offered on the pump housing 1, the internal rotor 4 includes turning in the first internal rotor 41 and second
Son 42, and the end face of first internal rotor 41 and the end face of the second internal rotor 42 are brought into close contact, the outer rotor 5 includes first
The outer rotor 52 of outer rotor 51 and second, and the end face of first outer rotor 51 and the second outer rotor 52 is brought into close contact, described
The thickness of two internal rotors 42 is more than the thickness of the second outer rotor 52, and first internal rotor 41, the thickness of the second internal rotor 42
Sum is equal to the first outer rotor 51, the thickness sum of the second outer rotor 52, and the first outer rotor 51 is set with the second outer rotor 52
On the second internal rotor 42, and the first outer rotor 51 is also sleeved on the first internal rotor 41.
The birotor lubricating oil pump that above-mentioned embodiment provides, its pump housing 1 is interior to be provided with two sets of rotors, and this two sets of rotors can first divide
Manufacture is opened, is remerged on driving shaft 3, equally, whole manufacturing process uses PM technique, and this greatly reduces work
Skill difficulty；The above-mentioned outer rotor 52 of first outer rotor 51 and second is sleeved on the second internal rotor 42, so, works as driving shaft
When 3 drive internal rotors 4 rotate, the second internal rotor 42 drives the first outer rotor 51 to be rotated with the second outer rotor 52 simultaneously, and first
Outer rotor 52 is not only mutually driven but also mutually restricted and rotated by the drive of the first internal rotor 41, two sets of rotors simultaneously again, therefore two
The rotation of set rotor can keep high level of synchronization, and just because of two sets of rotors can work asynchronously, the unit fluid pump of whole lubricating oil pump
Go out discharge capacity and pump out discharge capacity sum for two sets of rotors, it is of the present utility model to pump out oil pressure and flow can reach high values, it can meet more
The lubricating requirement of the engine of type, including big-block engine.
Further, as shown in figure 1, due to internal rotor 4, outer rotor 5 compare it is thick, when driving shaft 3 rotates, internal rotor 4 with
The fluid that the between cog of outer rotor 5 is saved is more, to make fluid suck and discharge in time, can be opened up on the pump housing 1 and pump cover 2
Oil sucting cavity and oil-discharging cavity, the oil sucting cavity of the oil inlet connection pump housing 1 and the oil sucting cavity of pump cover 2, and the oil-out 7 includes the
One oil-out 71 and the second oil-out 72, the first oil-out 71 are located at the top of the pump housing 1, and the second oil-out 72 is located on pump cover 2, institute
The oil-discharging cavity of the first oil-out 71 connection pump housing 1 is stated, second oil-out 72 connects the oil-discharging cavity of pump cover 2.
First internal rotor 41 and the second internal rotor 42 are arranged on driving shaft 3, simplest interference fit can be used, and
First internal rotor 41 is interference fitted with driving shaft 3 respectively with the second internal rotor 42, and this assembly method is fairly simple, but internally
The assembly precision of rotor 4 and driving shaft 3 requires higher, and the operation technique of technical staff is accurate, if both assembly precisions
First internal rotor 41 and the position inaccurate of the second internal rotor 42 during not high enough or manual assembly, the first internal rotor 41 and can be caused
The double wedge misalignment of two internal rotors 42, the synchronism that two sets of rotors rotate is influenceed, influences overall performance.
Therefore, further, as shown in figure 1, offering strip keyway on the driving shaft 3, first internal rotor
41st, strip keyway, the keyway of the keyway face driving shaft 3 of internal rotor 4 also are provided with the second internal rotor 42, keyway the inside is equipped with
Key 8, during manufacture, the first internal rotor 41, the second internal rotor 42 are integrally formed with key 8, can effectively avoid manual assembly
Error, with above-mentioned interference fit Technical comparing, such a method is simpler, and assembling effect is more preferable.
Further, as shown in Figures 2 and 3, the valve chamber of oil-discharging cavity is communicated with the pump cover 2, is set in the valve chamber
Limited valve 9, the pump housing 1 are provided with one end connection valve chamber, the drain path 10 of other end connection engine driving system, limit
In the state of opening, the unnecessary fluid of the oil-discharging cavity of pump cover 2 first flows out pressure valve 9 from pressure limiting valve 9, passes through drain path 10, arrives
In the travelling gear 11 rotated up to driving driving shaft 3, and then in the transmission parts such as drive gear of also reachable engine, the oil
The transmission parts such as liquid Castor Oil travelling gear 11, drive gear, reduce their mechanical wear, extend their service life.
Further, as shown in figure 3, specifically, the valve chamber is mutually perpendicular to drain path 10, the pressure limiting valve 9 wraps
The plunger 91 and spring 92 for being horizontally installed on valve chamber are included, described one end of spring 92 is located in plunger 91, the other end is fixed on valve chamber
Bottom, the plunger 91 is by the hydraulic coupling of oil-discharging cavity and the elastic force of spring 92.Such a pressure limiting valve 9 it is relatively simple for structure, in advance
The spring ratio of spring 92 is set, when the hydraulic coupling of oil-discharging cavity is more than the elastic force of spring 92, plunger 91 heads on spring 92 1
Motion of turning right is acted, oil-discharging cavity is connected with drain path 10, unnecessary fluid enters drain path 10；When the hydraulic coupling of oil-discharging cavity
Less than spring 92 elastic force when, the resilience of spring 92, toward left movement together with plunger 91, block the entrance of drain path 10, prevent
The fluid of oil-discharging cavity flows into drain path 10.
Preferably, the pressure limiting valve 9 also includes regulating bolt 93, the cover plate 94 installed in valve chamber bottom and slides peace
Closure 95 in valve chamber, described one end of spring 92 is located in plunger 91, the other end is fixed on closure 95, the tune
Bolt 93 is saved through cover plate 94 and both threaded connections, the end of the regulating bolt 93 contacts with closure 95, head end is located at
Cover plate 94（Namely pump cover 2）Outside.Explanation especially set out is needed herein, for convenience by plunger 91, spring 92 and closure 95
In valve chamber, valve chamber bottom should be open before pressure limiting valve 9 is installed, and the purpose of design cover plate 94 is：First, may be used
Valve chamber bottom is sealed；2nd, installation and adjustment bolt 93 is facilitated.Because the head end of regulating bolt 93 is located at outside pump cover 2, therefore this implementation
For the lubricating oil pump that mode provides before dispatching from the factory, staff will set position of the closure 95 in valve chamber by regulating bolt 93
Put, when regulating bolt 93 turns clockwise, regulating bolt 93 promotes closure 95 to overcome the elastic force of spring 92 with respect to valve chamber
It is moved to the left together, spring 92 is compressed, the elastic force increase of spring 92, when 93 rotate counterclockwise of regulating bolt, regulating bolt
93 relative valve chambers move right, and closure 95 also moves right under the elastic force effect of spring 92, stop revolving in regulating bolt 93
Closure 95 also stops movement while turning, and now, spring 92 is upheld, and the elastic force of spring 92 reduces, it can be seen that, closure 95
Position it is different, initial elastic force namely difference when spring 92 dispatches from the factory, but if pressure limiting valve 9 needs to change spring 92 at work
The situation of elastic force, staff can also be turned regulating bolt 93 by scene and solve problems, consequently, it is possible to eliminate dismounting
The inconvenience that pressure limiting valve is brought.
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 dual-rotor structure lubricating oil pump, including the pump housing（1）, pump cover（2）, driving shaft（3）And positioned at the pump housing（1）Interior interior turn
Son（4）With outer rotor（5）, the internal rotor（4）It is fixed on driving shaft（3）On, the outer rotor（5）It is sleeved on internal rotor（4）
On, the pump housing（1）On offer oil inlet（6）With oil-out（7）, it is characterised in that：The internal rotor（4）In first
Rotor（41）With the second internal rotor（42）, and first internal rotor（41）End face and the second internal rotor（42）End face it is close
Fitting, the outer rotor（5）Including the first outer rotor（51）With the second outer rotor（52）, and first outer rotor（51）With
Two outer rotors（52）End face be brought into close contact, second internal rotor（42）Thickness be more than the second outer rotor（52）Thickness,
And first internal rotor（41）, the second internal rotor（42）Thickness sum be equal to the first outer rotor（51）, the second outer rotor
（52）Thickness sum.
2. dual-rotor structure lubricating oil pump according to claim 1, it is characterised in that：The pump housing（1）And pump cover（2）It is upper equal
Oil sucting cavity and oil-discharging cavity are offered, the oil inlet connects the pump housing（1）Oil sucting cavity and pump cover（2）Oil sucting cavity, it is described fuel-displaced
Mouthful（7）Including the first oil-out（71）With the second oil-out（72）, first oil-out（71）Connect the pump housing（1）Oil extraction
Chamber, second oil-out（72）Connect pump cover（2）Oil-discharging cavity.
3. dual-rotor structure lubricating oil pump according to claim 2, it is characterised in that：The driving shaft（3）With first interior turn
Son（41）, the second internal rotor（42）Between use key（8）Connection.
4. dual-rotor structure lubricating oil pump according to claim 3, it is characterised in that：The pump cover（2）On offer connection
The valve chamber of oil-discharging cavity, the valve chamber is interior to be provided with pressure limiting valve（9）, the pump housing（1）It is provided with one end connection valve chamber, other end connection
The drain path of engine driving system（10）, in pressure limiting valve（9）In the state of opening, pump cover（2）The fluid of oil-discharging cavity can enter
Enter drain path（10）, let out toward in the transmission system of engine.
5. dual-rotor structure lubricating oil pump according to claim 4, it is characterised in that：The pressure limiting valve（9）Including plunger
（91）And spring（92）, the spring（92）One end is located at plunger（91）The interior, other end is fixed on valve chamber bottom, the plunger
（91）By the hydraulic coupling and spring of oil-discharging cavity（92）Elastic force.
6. dual-rotor structure lubricating oil pump according to claim 5, it is characterised in that：The pressure limiting valve（9）Also include regulation
Bolt（93）, cover plate installed in valve chamber bottom（94）And it is slidably mounted on the closure in valve chamber（95）, the spring（92）
One end is located at plunger（91）The interior, other end is fixed on closure（95）On, the regulating bolt（93）Through cover plate（94）And two
Person is threadedly coupled, the regulating bolt（93）End and closure（95）Contact, head end are located at cover plate（94）Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029440.5U CN207049583U (en) | 2017-08-17 | 2017-08-17 | A kind of dual-rotor structure lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029440.5U CN207049583U (en) | 2017-08-17 | 2017-08-17 | A kind of dual-rotor structure lubricating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049583U true CN207049583U (en) | 2018-02-27 |
Family
ID=61503144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721029440.5U Withdrawn - After Issue CN207049583U (en) | 2017-08-17 | 2017-08-17 | A kind of dual-rotor structure lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049583U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327688A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of dual-rotor structure lubricating oil pump |
| CN110094627A (en) * | 2019-05-29 | 2019-08-06 | 赛默新能源科技(济宁)有限公司 | A kind of electronics lubricating oil pump |
-
2017
- 2017-08-17 CN CN201721029440.5U patent/CN207049583U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327688A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of dual-rotor structure lubricating oil pump |
| CN107327688B (en) * | 2017-08-17 | 2022-12-06 | 湖南机油泵股份有限公司 | Oil pump with double-rotor structure |
| CN110094627A (en) * | 2019-05-29 | 2019-08-06 | 赛默新能源科技(济宁)有限公司 | A kind of electronics lubricating oil pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207049583U (en) | A kind of dual-rotor structure lubricating oil pump | |
| CN201218171Y (en) | Unidirectional hydraulic axial variable displacement plunger pump | |
| US9091266B2 (en) | Scroll compressor having a back pressure control valve for opening and closing a communication path in a stationary scroll | |
| CN201502492U (en) | Electro-hydraulic proportional load-sensitive control variable-displacement axial piston pump | |
| CN100595435C (en) | Unidirectional hydraulic axial variable displacement plunger pump | |
| CN101403438A (en) | Magnetic driving electronic expansion valve | |
| CN107327688A (en) | A kind of dual-rotor structure lubricating oil pump | |
| CN107061972A (en) | A kind of variable displacement impeller pump | |
| US20170138360A1 (en) | Low-backpressure rotary compressor | |
| CN209685236U (en) | A kind of double rack gear driving lifting plate | |
| CN103470789B (en) | A kind of vacuum chamber Flap valve of continuous vacuum coating line | |
| CN207132076U (en) | A kind of duplex lubricating oil pump of variable displacement | |
| CN207297296U (en) | Electric diaphragm pump | |
| CN206319994U (en) | A kind of cycloid hydraulic motor | |
| CN206175211U (en) | Gleitbretter and vacuum pump | |
| CN210599407U (en) | Screw compressor and air conditioning unit | |
| CN115306908A (en) | Eccentric rotary valve | |
| CN202520557U (en) | Rotary compressor | |
| CN203413136U (en) | Vacuum chamber flap valve of continuous vacuum coating line | |
| CN201428592Y (en) | Low voltage variable quantity blade pump | |
| CN201428594Y (en) | High and low voltage composite pump | |
| CN209724633U (en) | Hydraulic pump head | |
| CN205064258U (en) | Triple -spool displacement pump | |
| CN113623207A (en) | Low-noise spiral impeller Roots blower | |
| CN219548941U (en) | VVT phaser with sliding vane on rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180227 Effective date of abandoning: 20221206 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180227 Effective date of abandoning: 20221206 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |