CN105546313A - Oil pump - Google Patents
Oil pump Download PDFInfo
- Publication number
- CN105546313A CN105546313A CN201510914648.4A CN201510914648A CN105546313A CN 105546313 A CN105546313 A CN 105546313A CN 201510914648 A CN201510914648 A CN 201510914648A CN 105546313 A CN105546313 A CN 105546313A
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- rotor
- cavity
- suction chamber
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides an oil pump. The oil pump comprises a pump body, a pump cover, a pump shaft, an inner rotor and an outer rotor. The pump cover is arranged on the pump body, and an oil cavity is formed between the pump cover and the pump body; the pump shaft penetrates the pump shaft to extend to the interior of the oil cavity, and is sleeved with the inner rotor; the inner rotor is arranged inside the outer rotor, and the inner rotor and the outer rotor are arranged inside the oil cavity; and an oil outlet cavity is formed in the left end of the bottom of the oil cavity, and an oil inlet cavity is formed in the right end of the bottom of the oil cavity. A filter device is arranged at the bottom of the oil inlet cavity, a suction filter and an oil outlet hole are arranged inside the pump body, the suction filter is communicated with the oil inlet cavity, and the oil outlet hole is connected with the oil outlet cavity. The oil pump is simple and compact in structure, foreign matter in oil can be filtered in time, the oil can flow smoothly, normal work of the oil pump is ensured, and the working efficiency is improved.
Description
Technical field
The present invention relates to technical field of engines, be specifically related to a kind of oil pump.
Background technique
Oil pump is made up of housing, internal rotor, external rotor and pump cover etc.Internal rotor key or pin are fixed on rotor shaft, are directly or indirectly driven by crankshaft gear, and the throw of eccentric at internal rotor and external rotor center is e, and internal rotor drives external rotor to rotate in the same direction together.The internal rotor of general oil pump has the double wedge of more than 4 or 4, many one of the tappet number of the recessed gear ratio internal rotor of external rotor, the nonsynchronous in the same way rotation of such inner and outer Rotator.The outline shape curve of rotor is trochoid.When rotor tooth form tooth Profile Design must make rotor forward any angle to, the profile of tooth profile of each tooth of inner and outer Rotator can become point cantact mutually.Form 4 active chambers between such inner and outer Rotator, along with the rotation of rotor, the volume of these 4 active chambers is constantly changes.At the side cavity of oil input channel, because engagement thrown off by rotor, volume increases gradually, produces vacuum, machine oil is inhaled into, rotor continues to rotate, and machine oil is brought to the side of oil road, at this moment, rotor just in time enters engagement, this cavity volume is reduced, and oil pressure raises, and machine oil is extruded between cog and gone out through oil road force feed.Like this, along with the continuous rotation of rotor, machine oil is just constantly inhaled into and extrudes.
Existing oil pump operationally; machine oil circulation has some setbacks; and the foreign matter such as wearing and tearing slag, connection fragment that often can be attended by mechanical part is stayed in machine oil chamber; and fuel filter can not filter the foreign material in machine oil completely; still there will be foreign matter by mechanical part wearing and tearing or scratch; overheap can block the phenomenon of oil pump, affects the running of oil pump.For solving the problem, the invention provides a kind of simple and compact for structure, can filter the foreign matter in machine oil in time, oil circulation circulation is smooth and easy, ensures the normal work of oil pump, the oil pump of increasing work efficiency.
Summary of the invention
The invention provides a kind of oil pump, simple and compact for structure, can filter the foreign matter in machine oil in time, oil circulation circulation is smooth and easy, ensures the normal work of oil pump, increases work efficiency.In order to solve technique scheme, the present invention adopts following technological scheme:
A kind of oil pump, comprise the pump housing, pump cover, pump shaft, internal rotor, external rotor, described pump cover is arranged on the described pump housing, a machine oil chamber is formed between described pump cover and the described pump housing, described pump shaft extends to the inside in described machine oil chamber through described pump cover, described pump shaft is socketed with described internal rotor, described internal rotor is arranged on the inside of described external rotor, described internal rotor and described external rotor are all located at the inside in described machine oil chamber, the bottom of the left end of described external rotor is provided with out oil pocket, the lower end of the right-hand member of described external rotor and upper end are equipped with and are provided with oil suction chamber, the bottom of described oil suction chamber is provided with filtrating equipment, the inside of the described pump housing is provided with fuel filter and oil outlet, described fuel filter communicates with described oil suction chamber, described oil outlet with described go out oil pocket be connected.
A kind of oil pump provided by the invention, goes out oil pocket described in the space that can be set to described oil suction chamber is further greater than.
A kind of oil pump provided by the invention, can be set to described filtrating equipment further and comprise filter screen one, filter screen two, and the filtering hole on described filter screen one and the filtering hole of described filter screen two fit together alternately.
A kind of oil pump provided by the invention, the joint that can be set to described filtrating equipment and described oil suction chamber is further provided with sealing rubber ring.
Advantage of the present invention and beneficial effect are: to sum up, a kind of oil pump provided by the invention, simple and compact for structure, can filter the foreign matter in machine oil in time, and machine oil circulation is smooth and easy, ensure the normal work of oil pump, increase work efficiency.Be mainly reflected in following some.
1. the lower end of the right-hand member of external rotor described in and upper end are equipped with and are provided with oil suction chamber, adopt two-sided oil charging structure, improve pump oil efficiency and the fuel delivery of oil pump, and the uniformity of inner and outer rotors running, reduce the trend of uneven wear, improve the working life of rotor.
2. described in the space of oil suction chamber described in is greater than, go out oil pocket, when described external rotor and described internal rotor operate, the pressure of oil pocket side is gone out described in the pressure of described oil suction chamber side is greater than, add the squeezing action of described internal rotor and described external rotor, make machine oil rapidly in described machine oil cavity circulation circulation.
3. described in, the bottom of oil suction chamber is provided with filtrating equipment, and machine oil, is again purified by fuel filter after preliminary removal of impurities before entering described oil suction chamber, improves the cleanliness of machine oil further, and protection mechanical part ensures the normal operation of oil pump simultaneously.
4. described in, the inside of the pump housing is provided with fuel filter and oil outlet, and described fuel filter communicates with described oil suction chamber, described oil outlet with described go out oil pocket be connected, machine oil is circulated at described machine oil cavity circulation, realize automatically reuse.
5. filtrating equipment described in comprises filter screen one, filter screen two, filtering hole on described filter screen one and the filtering hole of described filter screen two fit together alternately, improving the cleanliness of the machine oil after filtering by reducing filtering hole, improving oil, making the using effect of the machine oil recycled better.
6. the joint of filtrating equipment described in and described oil suction chamber is provided with sealing rubber ring, improves the tightness of its joint, prevents engine oil leakage.
Accompanying drawing explanation
Carry out describing in detail or preferably to the preferred embodiment of the present invention below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of a kind of oil pump of the present invention.
Fig. 2 is the structural representation of filter screen one and filter screen two in the present invention.
Wherein: 1. the pump housing 2. pump cover 3. pump shaft 4. internal rotor 5. external rotor 6. machine oil chamber 7. goes out oil pocket 8. oil suction chamber 9. filtrating equipment 91. filter screen 1 filter screen 2 10. rubber seal.
Embodiment
Mode of execution with reference to accompanying drawing 1 pair of a kind of oil pump of the present invention is described further:
A kind of oil pump, comprise the pump housing 1, pump cover 2, pump shaft 3, internal rotor 4, external rotor 5, described pump cover 2 is arranged on the described pump housing 1, a machine oil chamber 6 is formed between described pump cover 2 and the described pump housing 1, described pump shaft 3 extends to the inside in described machine oil chamber 6 through described pump cover 2, described pump shaft 3 is socketed with described internal rotor 4, described internal rotor 4 is arranged on the inside of described external rotor 5, described internal rotor 4 and described external rotor 5 are all located at the inside in described machine oil chamber 6, the bottom of the left end of described external rotor 5 is provided with out oil pocket 7, the lower end of the right-hand member of described external rotor 5 and upper end are equipped with and are provided with oil suction chamber 8, adopt two-sided oil charging structure, improve pump oil efficiency and the fuel delivery of oil pump, and the uniformity of inner and outer rotors running, reduce the trend of uneven wear, improve the working life of rotor, the bottom of described oil suction chamber 8 is provided with filtrating equipment 9, and machine oil, is again purified by fuel filter after preliminary removal of impurities before entering described oil suction chamber 8, improves the cleanliness of machine oil further, and protection mechanical part ensures the normal operation of oil pump simultaneously, the inside of the described pump housing 1 is provided with fuel filter, and described fuel filter communicates with described oil suction chamber 8, and the outside of the described pump housing 1 is provided with oil outlet, described oil outlet with described go out oil pocket 7 be connected, make machine oil described machine oil chamber 6 Inner eycle circulation, realize automatically reuse.
Oil pocket 8 is gone out described in the space of described oil suction chamber 7 is greater than, when described external rotor 5 operates with described internal rotor 4, the pressure of oil pocket 7 side is gone out described in the pressure of described oil suction chamber 8 side is greater than, add described internal rotor 4 and the squeezing action of described external rotor 5, machine oil is circulated at described machine oil chamber 6 Inner eycle rapidly.Described filtrating equipment 9 comprises filter screen 1, filter screen 2 92, filtering hole on described filter screen 1 and the filtering hole on described filter screen 2 92 fit together alternately, improving the cleanliness of the machine oil after filtering by reducing filtering hole, making the using effect of the machine oil recycled better.Described filtrating equipment 9 is provided with sealing rubber ring 10 with the joint of described oil suction chamber 8, improves the tightness of its joint, prevents engine oil leakage.
In sum, a kind of oil pump provided by the invention operationally, machine oil enters described oil suction chamber 7 after first carrying out preliminary removal of impurities by fuel filter, when entering described oil suction chamber 8, after described filtrating equipment 9 pairs of machine oil purify further, machine oil enters described machine oil chamber 6, described pump shaft 3, under the effect of driving force, drives described internal rotor 4 to rotate with described external rotor 5, due to internal rotor 4 and the squeezing action of external rotor 5, machine oil produces pressure, goes out oil pocket 7 described in entering.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to previous embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technological scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. an oil pump, comprise the pump housing (1), pump cover (2), pump shaft (3), internal rotor (4), external rotor (5), it is characterized in that, described pump cover (2) is arranged on the described pump housing (1), a machine oil chamber (6) is formed between described pump cover (2) and the described pump housing (1), described pump shaft (3) extends to the inside of described machine oil chamber (6) through described pump cover (2), described pump shaft (3) is socketed with described internal rotor (4), described internal rotor (4) is arranged on the inside of described external rotor (5), described internal rotor (4) and described external rotor (5) are all located at the inside of described machine oil chamber (6), the bottom of the left end of described external rotor (5) is provided with out oil pocket (7), the lower end of the right-hand member of described external rotor (5) and upper end are equipped with and are provided with oil suction chamber (8), the bottom of described oil suction chamber (8) is provided with filtrating equipment (9), the inside of the described pump housing (1) is provided with fuel filter and oil outlet, described fuel filter communicates with described oil suction chamber (8), described oil outlet with described go out oil pocket (7) be connected.
2. a kind of oil pump according to claim 1, is characterized in that, goes out oil pocket (7) described in the space of described oil suction chamber (8) is greater than.
3. a kind of oil pump according to claim 1, it is characterized in that, described filtrating equipment (9) comprises filter screen one (91), filter screen two (92), and the filtering hole on described filter screen one (91) and the filtering hole of described filter screen two (92) fit together alternately.
4. a kind of oil pump according to claim 1, is characterized in that, described filtrating equipment (9) is provided with sealing rubber ring (10) with the joint of described oil suction chamber (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914648.4A CN105546313A (en) | 2015-12-13 | 2015-12-13 | Oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914648.4A CN105546313A (en) | 2015-12-13 | 2015-12-13 | Oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546313A true CN105546313A (en) | 2016-05-04 |
Family
ID=55825715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510914648.4A Pending CN105546313A (en) | 2015-12-13 | 2015-12-13 | Oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576203A (en) * | 2022-03-15 | 2022-06-03 | 奇瑞汽车股份有限公司 | Oil pump and engine |
-
2015
- 2015-12-13 CN CN201510914648.4A patent/CN105546313A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576203A (en) * | 2022-03-15 | 2022-06-03 | 奇瑞汽车股份有限公司 | Oil pump and engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203161524U (en) | Internal gear pump | |
| CN104405469A (en) | Engine oil pump and engine lubrication system thereof | |
| US20130170959A1 (en) | Power steering pump | |
| CN105423105A (en) | Rotor type oil pump | |
| CN107514538A (en) | A kind of rotor-type oil pump for reducing noise | |
| CN105546313A (en) | Oil pump | |
| CN103291612A (en) | Harmonic gear pump | |
| CN101074665A (en) | Linear conjugated internal-clutch high-pressure gear pump | |
| CN110410317B (en) | Backward flow formula light oil gear pump | |
| CN100383392C (en) | Axial housing type gear pump mounted with rolling bearing and gear motor | |
| CN205424383U (en) | Motor oil pump | |
| CN209705688U (en) | A kind of rotor-type oil pump directly driven by engine crankshaft | |
| CN201121581Y (en) | High pressure-resistant anti-overloading gear pump | |
| CN108662424A (en) | A kind of rotor-type oil pump that can improve cavitation erosion | |
| CN205025752U (en) | Small -size gear pump suitable for industrial machinery makes | |
| CN101328887A (en) | Elliptic gear pump | |
| CN200961576Y (en) | Linearly conjugated inside engaged gear pump | |
| CN203384041U (en) | Inner meshing cycloid rotor pump | |
| CN206860432U (en) | A kind of crescent gear pump | |
| WO2020116007A1 (en) | Screw compressor | |
| CN205226854U (en) | Rotor type oil pump | |
| CN101608618A (en) | A kind of novel gear pump of composite gear type | |
| CN203309490U (en) | Eccentric rotor type oil pump | |
| CN208669578U (en) | A kind of three screw pump | |
| CN102748087A (en) | Fuel pump system integrated with engine body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |
|
| WD01 | Invention patent application deemed withdrawn after publication |