CN109882728A - A kind of lubricating oil pump and assembly method - Google Patents
A kind of lubricating oil pump and assembly method Download PDFInfo
- Publication number
- CN109882728A CN109882728A CN201910247772.8A CN201910247772A CN109882728A CN 109882728 A CN109882728 A CN 109882728A CN 201910247772 A CN201910247772 A CN 201910247772A CN 109882728 A CN109882728 A CN 109882728A
- Authority
- CN
- China
- Prior art keywords
- pump
- positioning
- hole
- pump housing
- location hole
- 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.)
- Pending
Links
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 9
- 241000227287 Elliottia pyroliflora Species 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of lubricating oil pump and assembly method, which includes the pump housing, pump cover, internal rotor and outer rotor, and engine body is as the pump housing；The cavity for installing internal rotor and outer rotor is offered on the pump housing, at least one first positioning hole is offered on the pump housing.Pump cover edge has at least one second location hole.After pump cover and the pump housing are coupled, it is embedded with a positioning bushing in each first positioning hole and a corresponding second location hole, and positions bushing half and is located in first positioning hole, the other half is located in second location hole；Positioning pin is inserted in the positioning bushing.By saving installation space using engine body as the pump housing of lubricating oil pump, material is saved.Bushing is positioned by setting, reduces that processing cost is low, and pump cover replaceability is strong, and easy to assembly, improves efficiency, reduces assembly cost.
Description
Technical field
The invention belongs to machine oil pump technical fields, and in particular to a kind of lubricating oil pump and assembly method.
Background technique
Demand due to market to light truck is larger, especially the vehicle of low speed high load, and such engine is to machine oil
The quality requirement of pump is very high.It is long-term it was verified that in the operation of lubricating oil pump, each lubricant housings to the pressure of lubricating oil, flow,
Flow velocity three elements, from the strict sense for be not quite similar, reliably reasonable fuel feeding is even more important at variant position.
Lubricating oil pump assembly precision requires high, traditional lubricating oil pump, offers location hole on pump cover and the pump housing, then will positioning
Pin, which is inserted into corresponding location hole, is coupled pump cover with the pump housing.But the correspondence location hole of pump cover and the pump housing is coaxially right
It could be inserted into positioning pin after standard, and by during the correspondence location hole coaxial alignment of pump cover and the pump housing, it is relatively difficult, it is time-consuming,
Assembly is inconvenient.In addition, being needed replacing if pump cover or the pump housing damage, then can not assemble.
Summary of the invention
The purpose of the present invention is to provide a kind of lubricating oil pump and assembly method, solve on pump cover in the prior art and the pump housing
Location hole is offered, will could be inserted into positioning pin after the correspondence location hole coaxial alignment of pump cover and the pump housing, by pump cover and the pump housing
It is relatively difficult during corresponding location hole coaxial alignment, time-consuming, installation inconvenience, and replaceability after pump cover or pump housing damage
The technical problem of difference.
In order to solve the above-mentioned technical problem the present invention, adopts the following technical scheme that
A kind of lubricating oil pump, including the pump housing, pump cover, internal rotor and outer rotor, engine body is as the pump housing；It is opened up on the pump housing
There is the cavity for installing internal rotor and outer rotor, at least one first positioning hole is offered on the pump housing.
Oil inlet passage and oil discharge passage are offered on the pump cover；Pump cover edge has at least one second location hole,
First positioning hole is identical with the quantity of second location hole.
After the pump cover and the pump housing are coupled, it is embedded in each first positioning hole and a corresponding second location hole
One positioning bushing, and position bushing half and be located in first positioning hole, the other half is located in second location hole；The positioning lining
Positioning pin is inserted in set.
Through-hole is offered on the pump cover, internal rotor is connected by one end of key and shaft, and the other end of shaft passes through logical
Hole is located at containment portion.
By saving installation space using engine body as the pump housing of lubricating oil pump, material is saved.
In the prior art, it is not provided with positioning bushing, positioning pin is directly inserted into corresponding first positioning hole and the second positioning
Hole carries out positioning assembly, it is desirable that the mismachining tolerance of first positioning hole and second location hole is no more than one, and processing cost is high, such as
Fruit error is excessive, then by positioning pin transition fit installation realize assembly, if but the subsequent pump cover damage, need replacing
Pump cover causes new pump cover that can not assemble then due to previous existing mismachining tolerance and rigging error.And by setting in the application
Positioning bushing is set, the requirement on machining accuracy of first positioning hole and second location hole can be reduced, the mismachining tolerance of permission is 3-4
Silk, can be installed by positioning pin transition fit may be implemented to assemble, and then determine positioning pin insertion first positioning hole and second
Positioning is realized in hole in position, it is only necessary to meet the requirements the machining accuracy for positioning bushing and positioning pin, if the subsequent pump cover
It damages, replaces positioning bushing simultaneously when replacing pump cover, that is, can guarantee that new pump cover can be assembled with the pump housing.
Bushing is positioned by setting, reduces that processing cost is low, and pump cover replaceability is strong, and easy to assembly, improves efficiency,
Reduce assembly cost.
It is further improved, the shaft is located at one end of containment portion and transmission gear is connected.It is driven by transmission gear
Internal rotor rotation, it is compact-sized, and transmission efficiency is high.
It is further improved, is embedded with copper bush in the through-hole, copper bush is set in shaft.It is risen by setting copper bush
To sealing function, oil leak is prevented.
It is further improved, the second location hole is stepped hole, wherein smaller close to one lateral aperture of the pump housing.Pump cover and pump
After body assembly, positioning bushing is compressed by the step surface of stepped hole, plays position-limiting action, prevents positioning bushing from falling off.
It is further improved, the quantity of the second location hole is two.
A kind of assembly method of lubricating oil pump, includes the following steps:
1), abutment sleeve is embedded on pump cover in corresponding second location hole, positioning bushing half is located at the second positioning
Hole, the other half is exposed；
2) it, is embedded copper bush in the through-hole of pump cover, one end of shaft is fixedly connected with internal rotor by key, the other end
Across copper bush, it is connected with transmission gear；
3), outer rotor is put into the cavity of the pump housing, is then again coupled pump cover together with internal rotor and the pump housing, it is fixed to make
Bushing exposed half in position is inserted into corresponding first positioning hole, then will be inserted into positioning pin in positioning bushing, then pass through bolt
It is fastened through pump cover and the pump housing.
Compared with prior art, the beneficial effects of the present invention are:
1, by saving installation space using engine body as the pump housing of lubricating oil pump, material is saved.
2, it by setting positioning bushing, reduces that processing cost is low, and pump cover replaceability is strong, and easy to assembly, improves effect
Rate reduces assembly cost.
Detailed description of the invention
Fig. 1 is the structure chart of pump cover of the present invention.
Fig. 2 is the A-A schematic diagram of Fig. 1.
Specific embodiment
To keep the purpose of the present invention and technical solution clearer, below in conjunction with the embodiment of the present invention to skill of the invention
Art scheme is clearly and completely described.
Embodiment one:
As shown in Figure 1, 2, a kind of lubricating oil pump, including the pump housing, pump cover 4, internal rotor 6 and outer rotor 8, engine body conduct
The pump housing；The cavity for installing internal rotor and outer rotor is offered on the pump housing, is opened up on the pump housing there are two first positioning hole.
Oil inlet passage and oil discharge passage are offered on the pump cover 4；There are two second location holes 10 for pump cover edge.
After 4 pump cover and the pump housing are coupled, each first positioning hole is embedding with a corresponding second location hole 10
It equipped with a positioning bushing 5, and positions 5 half of bushing and is located in first positioning hole, the other half is located in second location hole 10；Institute
It states in positioning bushing and is inserted with positioning pin.Pump cover is fastened with the pump housing by bolt 1.
Through-hole is offered on the pump cover 4, internal rotor 6 is connect by key with one end of shaft 7, and the other end of shaft 7 is worn
It crosses through-hole and is located at containment portion.
By saving installation space using engine body as the pump housing of lubricating oil pump, material is saved.
In the prior art, it is not provided with positioning bushing, positioning pin is directly inserted into corresponding first positioning hole and the second positioning
Hole carries out positioning assembly, it is desirable that the mismachining tolerance of first positioning hole and second location hole is no more than one, and processing cost is high, such as
Fruit error is excessive, then by positioning pin transition fit installation may be implemented to assemble, if but the subsequent pump cover damage, need
Pump cover is replaced, then due to previous existing mismachining tolerance and rigging error, causes new pump cover that can not assemble.And lead in the application
Setting positioning bushing is crossed, the requirement on machining accuracy of first positioning hole and second location hole can be reduced, the mismachining tolerance of permission is
3-4, it can be installed by positioning pin transition fit and realize assembly, positioning pin is then inserted into first positioning hole and the second positioning
Positioning is realized in hole, it is only necessary to meet the requirements the machining accuracy for positioning bushing and positioning pin, if the subsequent pump cover damages
It is broken, replaces positioning bushing simultaneously when replacing pump cover, that is, can guarantee that new pump cover can be assembled with the pump housing.
Bushing is positioned by setting, reduces that processing cost is low, and pump cover replaceability is strong, and easy to assembly, improves efficiency,
Reduce assembly cost.
In the present embodiment, the shaft 7 is located at one end of containment portion and transmission gear 9 is connected.Pass through rotate gear
Internal rotor rotation is driven, it is compact-sized, and transmission efficiency is high.
In the present embodiment, copper bush 3 is embedded in the through-hole, copper bush 3 is set in shaft 7.By the way that copper is arranged
Bushing plays sealing function, prevents oil leak.
In the present embodiment, the second location hole 10 is stepped hole, wherein smaller close to one lateral aperture of the pump housing.Pump cover 4
After pump housing assembly, positioning bushing 5 is compressed by the step surface of stepped hole, plays position-limiting action, prevents positioning bushing from falling off.
Embodiment two:
A kind of assembly method of lubricating oil pump, includes the following steps:
1), abutment sleeve is embedded on pump cover in corresponding second location hole, positioning bushing half is located at the second positioning
Hole, the other half is exposed；
2) it, is embedded copper bush in the through-hole of pump cover, one end of shaft is fixedly connected with internal rotor by key, the other end
Across copper bush, it is connected with transmission gear；
3), outer rotor is put into the cavity of the pump housing, is then again coupled pump cover together with internal rotor and the pump housing, it is fixed to make
Bushing exposed half in position is inserted into corresponding first positioning hole, then will be inserted into positioning pin in positioning bushing, then pass through bolt
It is fastened through pump cover and the pump housing.
Do not done in the present invention illustrate be the prior art or can be realized by the prior art, and the present invention
Described in specific implementation case be only preferable case study on implementation of the invention, practical range not for the purpose of limiting the invention.
Equivalent changes and modifications made by i.e. all contents according to scope of the present invention patent all should be used as technology scope of the invention.
Claims (6)
1. a kind of lubricating oil pump, including the pump housing, pump cover, internal rotor and outer rotor, which is characterized in that engine body is as the pump housing；
The cavity for installing internal rotor and outer rotor is offered on the pump housing, at least one first positioning hole is offered on the pump housing；
Oil inlet passage and oil discharge passage are offered on the pump cover；Pump cover edge has at least one second location hole, and first
Location hole is identical with the quantity of second location hole；
After the pump cover and the pump housing are coupled, one is embedded in each first positioning hole and a corresponding second location hole
Bushing is positioned, and positions bushing half and is located in first positioning hole, the other half is located in second location hole；In the positioning bushing
It is inserted with positioning pin；
Through-hole is offered on the pump cover, internal rotor is connected by one end of key and shaft, and the other end of shaft passes through through-hole position
In containment portion.
2. lubricating oil pump according to claim 1, which is characterized in that the shaft is located at one end and the driving cog of containment portion
Wheel is connected.
3. lubricating oil pump according to claim 1 or 2, which is characterized in that be embedded with copper bush, copper bush set in the through-hole
It is located in shaft.
4. lubricating oil pump according to claim 3, which is characterized in that the second location hole is stepped hole, wherein close to pump
One lateral aperture of body is smaller.
5. lubricating oil pump according to claim 1, which is characterized in that the quantity of the second location hole is two.
6. a kind of assembly method based on lubricating oil pump described in any one of claim 1-5, which is characterized in that including walking as follows
It is rapid:
1), abutment sleeve is embedded on pump cover in corresponding second location hole, positioning bushing half is located at second location hole, separately
Half is exposed；
2) it, is embedded copper bush in the through-hole of pump cover, one end of shaft is fixedly connected with internal rotor by key, the other end passes through
Copper bush is connected with transmission gear；
3), outer rotor is put into the cavity of the pump housing, is then again coupled pump cover together with internal rotor and the pump housing, serves as a contrast positioning
It covers exposed half to be inserted into corresponding first positioning hole, then will be inserted into positioning pin in positioning bushing, then by bolt through pumping
Lid is fastened with the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247772.8A CN109882728A (en) | 2019-03-28 | 2019-03-28 | A kind of lubricating oil pump and assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247772.8A CN109882728A (en) | 2019-03-28 | 2019-03-28 | A kind of lubricating oil pump and assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109882728A true CN109882728A (en) | 2019-06-14 |
Family
ID=66935132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910247772.8A Pending CN109882728A (en) | 2019-03-28 | 2019-03-28 | A kind of lubricating oil pump and assembly method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109882728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442083A (en) * | 2021-06-15 | 2021-09-28 | 东风电驱动系统有限公司 | Generator assembly fixture |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982944U (en) * | 2010-10-29 | 2011-09-21 | 南京创新机油泵制造有限公司 | Oil pump assembly |
| CN203394647U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Engine cylinder body of integrated oil pump shell |
| JP2014126042A (en) * | 2012-12-27 | 2014-07-07 | Showa Corp | Assembling method of vane pump |
| JP2014126005A (en) * | 2012-12-27 | 2014-07-07 | Nidec Tosok Corp | Electric oil pump |
| TWM504868U (en) * | 2015-03-27 | 2015-07-11 | Spacious Ind Co Ltd | Air valve cover positioning tool |
| US20160230601A1 (en) * | 2015-02-09 | 2016-08-11 | United Technologies Corporation | Turbomachine accessory gearbox alignment pin |
| CN208154069U (en) * | 2018-01-25 | 2018-11-27 | 山东高密润达机油泵有限公司 | A kind of high flow capacity impeller pump |
| CN209801130U (en) * | 2019-03-28 | 2019-12-17 | 南京创新机油泵制造有限公司 | Oil pump |
-
2019
- 2019-03-28 CN CN201910247772.8A patent/CN109882728A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201982944U (en) * | 2010-10-29 | 2011-09-21 | 南京创新机油泵制造有限公司 | Oil pump assembly |
| JP2014126042A (en) * | 2012-12-27 | 2014-07-07 | Showa Corp | Assembling method of vane pump |
| JP2014126005A (en) * | 2012-12-27 | 2014-07-07 | Nidec Tosok Corp | Electric oil pump |
| CN203394647U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Engine cylinder body of integrated oil pump shell |
| US20160230601A1 (en) * | 2015-02-09 | 2016-08-11 | United Technologies Corporation | Turbomachine accessory gearbox alignment pin |
| TWM504868U (en) * | 2015-03-27 | 2015-07-11 | Spacious Ind Co Ltd | Air valve cover positioning tool |
| CN208154069U (en) * | 2018-01-25 | 2018-11-27 | 山东高密润达机油泵有限公司 | A kind of high flow capacity impeller pump |
| CN209801130U (en) * | 2019-03-28 | 2019-12-17 | 南京创新机油泵制造有限公司 | Oil pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442083A (en) * | 2021-06-15 | 2021-09-28 | 东风电驱动系统有限公司 | Generator assembly fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102562325B (en) | The electronic air throttle body of diesel engine | |
| CN110159548B (en) | Electric centrifugal pump | |
| CN109882728A (en) | A kind of lubricating oil pump and assembly method | |
| CN202392418U (en) | Rotor type short shaft sleeve oil pump provided with circulating lubrication oil groove | |
| CN104964151A (en) | Diesel engine oil pump | |
| CN105134440A (en) | Single-cylinder high-pressure oil pump assembly of improved structure for diesel engine | |
| CN105627073A (en) | Rotor oil pump | |
| CN209801130U (en) | Oil pump | |
| CN106051442A (en) | Speed changer oil pump not prone to oil leakage | |
| CN204140225U (en) | A kind of housing for timing gear | |
| CN104100825B (en) | Displacement-variable oil pump | |
| DE10221843B4 (en) | Electric motor for use as a pump motor and pump | |
| CN200985898Y (en) | Mechanical sealing device capable of freely scattering in axial direction used for multi-stage pump | |
| CN104373269A (en) | Return oil system of high-pressure common rail pump | |
| CN209370812U (en) | A kind of gear type oil pump and rotor-type oil pump being avoided that end wear | |
| CN209801129U (en) | Oil pump with positioning pin die-cast on pump cover | |
| CN2396209Y (en) | Inserted machine oil pump | |
| CN204785470U (en) | Diesel engine oil pump | |
| CN2913122Y (en) | Combined valve type cycloidal hydraulic steering gear | |
| CN204212870U (en) | A kind of diesel engine Gear chamber for time setting | |
| CN211525078U (en) | Vacuum pump | |
| CN204961218U (en) | Air compressing assembly assembly structure on air compressor machine | |
| KR20200115803A (en) | Device for assembling turbo charger and engine with the turbo charger | |
| CN201016338Y (en) | Oil pump | |
| CN211203611U (en) | Oil pump |
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 |