CN109322773A - A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism - Google Patents
A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism Download PDFInfo
- Publication number
- CN109322773A CN109322773A CN201811493983.1A CN201811493983A CN109322773A CN 109322773 A CN109322773 A CN 109322773A CN 201811493983 A CN201811493983 A CN 201811493983A CN 109322773 A CN109322773 A CN 109322773A
- Authority
- CN
- China
- Prior art keywords
- gear
- connecting key
- pump
- pump body
- common rail
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims abstract description 4
- 238000005461 lubrication Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- -1 ether Ketone Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/12—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps having other positive-displacement pumping elements, e.g. rotary
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/445—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention is a kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism, including connecting key, gear, gear pump body, high voltage common rail pump drive shaft, oil-way and cavity；There is flat hole among the connecting key, the shaft end of the drive shaft has flat position, connecting key and drive shaft to be cooperatively connected by flat position, flat hole；The connecting key is cooperated by the corresponding aperture of multiple forming angles and gear, and forming angle quantity is more, and contact area is big, uniform force；The gear passes through support column high speed rotation in gear pump body cavity, gear pump body support column designs for bearing-free, the cavity portion of gear pump body and Gear Contact has coating, and gear pump body bottom surface portions have oil-way, guarantees sufficient lubrication when high-speed gear movement.Structure is simple, easy for installation, and intensity is high, is not easy to get rusty.
Description
Technical field
The present invention relates to diesel engine high-pressure co-rail fuel oil pump technical field, specifically a kind of high pressure of structure optimization is total
Rail pump low pressure gear fuel supply pump.
Background technique
In face of increasingly strict emission regulation and severe energy problem, sprayed on a diesel engine using high-pressure common rail fuel oil
System has become one of the Main Trends of The Development of world today's diesel technology.High-pressure common-rail fuel pump is used as Fuel System
It unites important component part, application is more and more extensive.For gear fuel supply pump due to strong with suction capacity, structure is simple, flow
Uniformly, it is widely used on high voltage common rail pump the advantages that reliable operation.Common gear fuel supply pump volumetric efficiency is low, structure is multiple
Miscellaneous, the poor connection type generally used of interchangeablity connects for flat key or spline.Flat key stable connection, but be inconvenient to dismantle；
Spline connection processing is complicated, and has certain requirement to installation space.Inconvenient installation and removal or suffered stress compared with
Greatly, it is prone to wear and is broken, in addition metal material gets rusty easily.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of high voltage common rail pump novel gear type oil transfer pump drivers
Structure, including connecting key, gear, gear pump body, high voltage common rail pump drive shaft, oil-way and cavity；Among the connecting key
There is flat hole, the shaft end of the drive shaft has flat position, connecting key and drive shaft to be cooperatively connected by flat position, flat hole；The connecting key
Cooperated by the corresponding aperture of forming angle and gear, forming angle quantity is no less than 2, and contact area is big, uniform force；The gear
By support column, high speed rotation, gear pump body support column design in gear pump body cavity for bearing-free, gear pump body with
The cavity portion of Gear Contact has coating, and gear pump body bottom surface portions have oil-way, guarantees abundant when high-speed gear moves
Lubrication.
Further, the connecting key is high-strength engineering plastic, and has self-lubricating property；Connecting key angle relative to
Flat position symmetric design guarantees that gear pump positive and negative rotation stress is identical, to guarantee the versatility of positive and negative rotation.
Further, the connecting key is hexagram structure, and material is high strength nonmetallic material polyether-ether-ketone.
Gear fuel supply pump uses bearing-free formula structure, transmission shaft and gear to be keyed by slide sheet type, and structure is simple, peace
Dress is convenient；Gear pump body is axial minimum with radial clearance with gear, greatly improves the volumetric efficiency of gear pump；Slide sheet type
Driving key uses hexagram structure, increases forced area, effectively reduces stress；Shape is symmetrical expression, and it is two-way to meet positive and negative rotation
Rotation demand；Slide sheet type driving key uses high strength nonmetallic material polyether-ether-ketone, and intensity is high, is not easy to get rusty.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
With reference to Fig. 1, drive shaft, 4 are driven by engine end, and connecting key 1 is driven by drive shaft 4, and gear 2 passes through connecting key 1
Drive around gear pump body 3 support column generate high speed rotation.Specific forms of motion is that drive shaft 4 is driven by the cooperation of flat mouth
Connecting key 1 rotates, and connecting key 1 passes torque to gear 2 by 6 angles, and 2 one side of gear is fixed on the branch of gear pump body 3
On dagger, rotation is on the other hand generated, the volume of oil inlet and fuel-displaced side is caused to change, and then forms oil inlet and fuel-displaced.Gear pump
There is coating in 6 part of cavity of body 3 and Gear Contact, and 3 bottom surface portions of gear pump body have oil-way 5, guarantees high-speed gear movement
When sufficient lubrication；Using drive shaft and connecting key 1 by flat position be directly connected to and the support column of gear pump body 3 on do not pacify
The mode of dress bearing ensure that the simple and convenient of drive mechanism and mounting means；Gear pump body 3 and 2 axial direction of gear and radial clearance
It is minimum, greatly improve the volumetric efficiency of gear pump；Connecting key 1 uses hexagram structure, increases forced area, effectively subtracts
Small stress, shape are symmetrical expression, meet positive and negative rotation bidirectional rotation demand；Connecting key 1 uses high strength nonmetallic material polyethers ether
Ketone, intensity is high, is not easy to get rusty.
Claims (3)
1. a kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism, it is characterised in that: including connecting key (1), gear
(2), gear pump body (3), high voltage common rail pump drive shaft (4), oil-way (5) and cavity (6)；The connecting key (1) is intermediate
There is flat hole, the shaft end of the drive shaft (4) has flat position, connecting key (1) and drive shaft (4) to be cooperatively connected by flat position, flat hole；Institute
Connecting key (1) to be stated to cooperate by the corresponding aperture of forming angle and gear (2), forming angle quantity is no less than 2, and contact area is big, by
Power is uniform；The gear (2) passes through support column high speed rotation in gear pump body (3) cavity, gear pump body (3) support column
It is designed for bearing-free, the cavity (6) of gear pump body (3) and Gear Contact partially has coating, and gear pump body (3) bottom surface portions have profit
Oil groove (5) guarantees sufficient lubrication when high-speed gear movement.
2. a kind of high voltage common rail pump according to claim 1 novel gear type oil transportation pump transmission mechanism, it is characterised in that:
The connecting key (1) is high-strength engineering plastic, and has self-lubricating property；Connecting key (1) angle is symmetrically set relative to flat position
Meter guarantees that gear pump positive and negative rotation stress is identical, to guarantee the versatility of positive and negative rotation.
3. a kind of high voltage common rail pump according to claim 1 or 2 novel gear type oil transportation pump transmission mechanism, feature exist
In: the connecting key (1) is hexagram structure, and material is high strength nonmetallic material polyether-ether-ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493983.1A CN109322773A (en) | 2018-12-07 | 2018-12-07 | A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493983.1A CN109322773A (en) | 2018-12-07 | 2018-12-07 | A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109322773A true CN109322773A (en) | 2019-02-12 |
Family
ID=65256475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811493983.1A Pending CN109322773A (en) | 2018-12-07 | 2018-12-07 | A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322773A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2688931Y (en) * | 2004-03-26 | 2005-03-30 | 程安强 | Pin axial high-pressure gearing pumps |
| CN201546851U (en) * | 2009-11-27 | 2010-08-11 | 天津内燃机研究所 | Gear transmission connecting structure of oil delivery pump of diesel engine |
| CN202746190U (en) * | 2012-07-03 | 2013-02-20 | 泊姆克(天津)液压有限公司 | High-pressure gear pump |
| CN207935077U (en) * | 2018-01-24 | 2018-10-02 | 河北远东泵业制造有限公司 | A kind of High-performance gear pump |
| CN209469526U (en) * | 2018-12-07 | 2019-10-08 | 思达耐精密机电（常熟）有限公司 | A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism |
-
2018
- 2018-12-07 CN CN201811493983.1A patent/CN109322773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2688931Y (en) * | 2004-03-26 | 2005-03-30 | 程安强 | Pin axial high-pressure gearing pumps |
| CN201546851U (en) * | 2009-11-27 | 2010-08-11 | 天津内燃机研究所 | Gear transmission connecting structure of oil delivery pump of diesel engine |
| CN202746190U (en) * | 2012-07-03 | 2013-02-20 | 泊姆克(天津)液压有限公司 | High-pressure gear pump |
| CN207935077U (en) * | 2018-01-24 | 2018-10-02 | 河北远东泵业制造有限公司 | A kind of High-performance gear pump |
| CN209469526U (en) * | 2018-12-07 | 2019-10-08 | 思达耐精密机电（常熟）有限公司 | A kind of high voltage common rail pump novel gear type oil transportation pump transmission mechanism |
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