CN205226854U - Rotor type oil pump - Google Patents
Rotor type oil pump Download PDFInfo
- Publication number
- CN205226854U CN205226854U CN201521026430.7U CN201521026430U CN205226854U CN 205226854 U CN205226854 U CN 205226854U CN 201521026430 U CN201521026430 U CN 201521026430U CN 205226854 U CN205226854 U CN 205226854U
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- CN
- China
- Prior art keywords
- rotor
- oil
- pump
- external
- internal
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a rotor type oil pump, including the pump body, pump cover, pump shaft, inner rotor, external rotor, drive gear, the pump cover sets up on the pump body, the front end of the pump body is equipped with the rotor hole, the bottom surface in rotor hole is equipped with the shaft hole, the pump shaft sets up in the shaft hole, cup jointed on the pump shaft the inner rotor, the inner rotor sets up the inside of external rotor, and with the inner gearing of external rotor, be equipped with the oil feed chamber on the pump cover and go out the oil pocket, the oil feed chamber with it establishes to go out the oil pocket the below of inner rotor, drive gear sets up the outside of external rotor, be equipped with the oil inlet on the pump cover, the oil inlet with be equipped with the oil feed passageway between the oil feed chamber, the inside of the pump body is equipped with strainer and oil outlet. The utility model discloses simplified the structure, the machine oil circulatory flow is clear and coherent smooth, has reduced occupation space, improves work efficiency and reduced the noise.
Description
Technical field
The utility model relates to technical field of engines, is specifically related to a kind of rotor-type oil pump.
Background technique
Rotor-type 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 rotor-type 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 rotor-type oil pump, structure is simply complicated, and component are lengthy and jumbled, takes up room large, and produces very large noise when operating.In addition, machine oil can produce the circulations such as backflow and to have some setbacks phenomenon when inner and outer rotors operates, reduce working efficiency.For solving the problem, the utility model provides a kind of and simplifies conventional attachment structure and number of spare parts, and oil circulation circulation is smooth and easy, decreases and takes up room, and increases work efficiency and decreases the rotor-type oil pump of noise.
Model utility content
The utility model provides a kind of rotor-type oil pump, simplifies the structure, and oil circulation circulation is smooth and easy, decreases and takes up room, increase work efficiency and decrease noise.In order to solve technique scheme, the utility model adopts following technological scheme:
A kind of rotor-type oil pump, comprise the pump housing, pump cover, pump shaft, internal rotor, external rotor, driving gear, described pump cover is arranged on the described pump housing, the front end of the described pump housing is provided with rotor hole, the bottom surface of described rotor hole is provided with axis hole, described pump shaft is arranged in described axis hole, described pump shaft is socketed with described internal rotor, described internal rotor is arranged on the inside of described external rotor, and engage with the internal tooth of described external rotor, described pump cover is provided with oil suction chamber and goes out oil pocket, described oil suction chamber and described go out oil pocket be located at the below of described internal rotor, described driving gear arranges the outside of external rotor, the periphery of described external rotor is provided with external gear, and match with described driving gear, described pump cover is provided with filler opening, oil inlet passage is provided with between described filler opening and described oil suction chamber, 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 rotor-type oil pump that the utility model provides, the internal tooth that can be set to described external rotor is further set to arc-shaped gear, and the external tooth of described internal rotor is set to arc-shaped gear.
A kind of rotor-type oil pump that the utility model provides, the internal tooth that can be set to described external rotor is further set to 9, and the external tooth of described internal rotor is set to 8.
A kind of rotor-type oil pump that the utility model provides, can be set to described external rotor identical with the width of the distance of the adjacent gear of described internal rotor gear respective with it further.
Advantage of the present utility model and beneficial effect are: to sum up, a kind of rotor-type oil pump that the utility model provides, and simplify the structure, and oil circulation circulation is smooth and easy, decreases and takes up room, increase work efficiency and decrease noise.Wherein:
1. driving gear described in arranges the outside of external rotor, the periphery of described external rotor is provided with external gear, and match with described driving gear, described external rotor is made to drive described internal rotor to rotate, not only improve oil pump transmission efficiency, and decrease weight and the noise of oil pump, simplify traditional linkage structure and number of spare parts simultaneously, reduce to occupy space.
2. described in, the internal tooth of external rotor is set to arc-shaped gear, the external tooth of described internal rotor is set to arc-shaped gear, when making described internal rotor and described external rotor forward any angle to, the profile of tooth profile of each tooth can become point cantact mutually, machine oil is efficiently circulated swimmingly, increases work efficiency.
3. described in, the internal tooth of external rotor is set to 9, and the external tooth of described internal rotor is set to 8, and described internal rotor 3 and described external rotor 4 are rotated more neatly, ensures that machine oil circulation is smooth and easy.
4. external rotor described in is identical with the width of the distance of the adjacent gear of described internal rotor gear respective with it, when making described internal rotor and described external rotor forward any angle to further, the profile of tooth profile of each tooth can become point cantact mutually, machine oil is efficiently circulated swimmingly, increases work efficiency.
Accompanying drawing explanation
Carry out describing in detail or preferably to preferred implementation of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of a kind of rotor-type oil pump of the utility model.
Wherein: 1. pump cover 2. pump shaft 3. internal rotor 4. external rotor 5. axis hole 6. oil suction chamber 7. goes out oil pocket 9. filler opening.
Embodiment
Mode of execution with reference to accompanying drawing 1 pair of a kind of rotor-type oil pump of the utility model is described further:
A kind of rotor-type oil pump, comprise the pump housing, pump cover 1, pump shaft 2, internal rotor 3, external rotor 4, driving gear, described pump cover 1 is arranged on the described pump housing, the front end of the described pump housing is provided with rotor hole, the bottom surface of described rotor hole is provided with axis hole 5, described pump shaft 2 is arranged in described axis hole 5, described pump shaft 2 is socketed with described internal rotor 3, described internal rotor 3 is arranged on the inside of described external rotor 4, and engage with the internal tooth of described external rotor 4, described pump cover 1 is provided with oil suction chamber 6 and goes out oil pocket 7, described oil suction chamber 6 and described go out oil pocket 7 be located at the below of described internal rotor 3, described driving gear arranges the outside of external rotor 4, the periphery of described external rotor 4 is provided with external gear, and match with described driving gear, described external rotor 4 is made to drive described internal rotor 3 to rotate, not only improve oil pump transmission efficiency, and decrease weight and the noise of oil pump, simplify traditional linkage structure and number of spare parts simultaneously, reduce to occupy space, described pump cover 1 is provided with filler opening 9, is provided with oil inlet passage between described filler opening 9 and described oil suction chamber, and the inside of the described 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.
The internal tooth of described external rotor 4 is set to arc-shaped gear, the external tooth of described internal rotor 3 is set to arc-shaped gear, when making described internal rotor 3 forward any angle to described external rotor 4, the profile of tooth profile of each tooth can become point cantact mutually, machine oil is efficiently circulated swimmingly, increases work efficiency.The internal tooth of described external rotor 4 is set to 9, and the external tooth of described internal rotor 3 is set to 8, and described internal rotor 3 and described external rotor 4 are rotated more neatly, ensures that machine oil circulation is smooth and easy.Described external rotor 4 is identical with the width of the distance gear respective with it of the adjacent gear of described internal rotor 3, when making described internal rotor 3 forward any angle to described external rotor 4 further, the profile of tooth profile of each tooth can become point cantact mutually, machine oil is efficiently circulated swimmingly, increases work efficiency.
In sum, a kind of rotor-type oil pump that the utility model provides operationally, drive unit drives described driving gear to operate, described external rotor 4 gets up with described driving gear operation, oil pump is started working, described external rotor 4 drives described internal rotor 3 to rotate with identical direction, the arc-shaped gear of described internal rotor 3 and described external rotor 4 is just from tight engagement situation, leave the space increasing and form tooth cavity gradually, thus produce certain degree of vacuum, Oil sucking device set below described filler opening 9 sucks machine oil, machine oil enters described oil suction chamber 6 through described oil inlet passage, along with described internal rotor 3 and described external rotor 4 rotate the continuous increase of tooth cavity, oil pressure goes out oil pocket 7 described in delivering to, continue in rotary course at described internal rotor 3 and described external rotor 4, rotor engagement space reduces gradually, the lubricating oil pressure of between cog raises, thus lubricating oil is sent on each connected element.Successively rotated by described internal rotor 3 and described external rotor 4, will continuously lubricating oil is transported between each moving parts of motor, implement the work cycle of continuous lubrication.
Last it is noted that the foregoing is only preferred embodiment of the present utility model; be not limited to the utility model; although be described in detail the utility model with reference to previous embodiment; 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; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a rotor-type oil pump, comprise the pump housing, pump cover (1), pump shaft (2), internal rotor (3), external rotor (4), driving gear, it is characterized in that, described pump cover (1) is arranged on the described pump housing, the front end of the described pump housing is provided with rotor hole, the bottom surface of described rotor hole is provided with axis hole (5), described pump shaft (2) is arranged in described axis hole (5), described pump shaft (2) is socketed with described internal rotor (3), described internal rotor (3) is arranged on the inside of described external rotor (4), and engage with the internal tooth of described external rotor (4), described pump cover (1) is provided with oil suction chamber (6) and goes out oil pocket (7), described oil suction chamber (6) and described go out oil pocket (7) be located at the below of described internal rotor (3), described driving gear arranges the outside of external rotor (4), the periphery of described external rotor (4) is provided with external gear, and match with described driving gear, described pump cover (1) is provided with filler opening (9), oil inlet passage is provided with between described filler opening (9) and described oil suction chamber, 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.
2. a kind of rotor-type oil pump according to claim 1, is characterized in that, the internal tooth of described external rotor (4) is set to arc-shaped gear, and the external tooth of described internal rotor (3) is set to arc-shaped gear.
3. a kind of rotor-type oil pump according to claim 1, is characterized in that, the internal tooth of described external rotor (4) is set to 9, and the external tooth of described internal rotor (3) is set to 8.
4. a kind of rotor-type oil pump according to claim 1, is characterized in that, described external rotor (4) is identical with the width of the distance gear respective with it of the adjacent gear of described internal rotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026430.7U CN205226854U (en) | 2015-12-13 | 2015-12-13 | Rotor type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026430.7U CN205226854U (en) | 2015-12-13 | 2015-12-13 | Rotor type oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226854U true CN205226854U (en) | 2016-05-11 |
Family
ID=55901920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521026430.7U Expired - Fee Related CN205226854U (en) | 2015-12-13 | 2015-12-13 | Rotor type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226854U (en) |
-
2015
- 2015-12-13 CN CN201521026430.7U patent/CN205226854U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |