CN219911701U - External oil pump device - Google Patents
External oil pump device Download PDFInfo
- Publication number
- CN219911701U CN219911701U CN202320988582.3U CN202320988582U CN219911701U CN 219911701 U CN219911701 U CN 219911701U CN 202320988582 U CN202320988582 U CN 202320988582U CN 219911701 U CN219911701 U CN 219911701U
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- China
- Prior art keywords
- oil
- external
- oil outlet
- rotor
- pump device
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- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 73
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model provides an external oil pump device, which comprises a shell assembly, wherein the shell assembly comprises a first shell and a second shell which are detachably connected to form an oil inlet cavity and an oil outlet cavity, an inner rotor and an outer rotor are arranged in the first shell, the inner rotor is meshed with the outer rotor through gears, one end of the second shell is provided with an oil inlet channel, the other end of the second shell is provided with at least two oil outlet channels, the oil inlet channel is communicated with the oil inlet cavity, and the oil outlet channel is communicated with the oil outlet cavity. The lubricating system can overcome the defects that in the prior art, when a plurality of passages need to be lubricated, an oil outlet of an oil pump needs to be connected with a multi-way joint to assemble a plurality of oil outlet pipes, and the size and the arrangement difficulty of a lubricating system are increased.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an external oil pump device.
Background
The automobile transmission device generally adopts an external oil pump to circulate lubricating oil, and the external oil pump needs to be connected with an oil inlet pipeline and an oil outlet pipeline at present, but the external oil pump generally only has one oil outlet, and when a plurality of channels need to be lubricated, the oil outlet needs to be connected with a multi-way joint to reassemble a plurality of oil outlet pipelines, so that the volume and the arrangement difficulty of a lubricating system are increased.
Disclosure of Invention
Therefore, the utility model provides an external oil pump device, which can overcome the defects that when a plurality of passages need to be lubricated, an oil outlet of an oil pump needs to be connected with a multi-way joint to be assembled with a plurality of oil outlet pipes, and the size and the arrangement difficulty of a lubrication system are increased in the prior art.
In order to solve the problems, the utility model provides an external oil pump device, which comprises a shell assembly, wherein the shell assembly comprises a first shell and a second shell which are detachably connected to form an oil inlet cavity and an oil outlet cavity, an inner rotor and an outer rotor are arranged in the first shell, the inner rotor is meshed with the outer rotor through gears, one end of the second shell is provided with an oil inlet channel, the other end of the second shell is provided with at least two oil outlet channels, the oil inlet channel is communicated with the oil inlet cavity, and the oil outlet channel is communicated with the oil outlet cavity.
In some embodiments, the oil outlet channels are two paths, and the diameters of the two paths of oil outlet channels are not equal.
In some embodiments, the inner rotor is an outer involute gear or an outer cycloid gear, the outer rotor is an inner involute gear or a inner cycloid gear, the inner rotor and the outer rotor are meshed with each other to form a rotor, wear-resistant liners are arranged at two ends of the rotor, and the wear-resistant liners are respectively attached to the first shell and the second shell.
In some embodiments, the oil inlet channel comprises an oil inlet, the oil outlet channel comprises an oil outlet, the oil inlet is in a threaded structure, or a port structure, and/or the oil outlet is in a threaded structure, or a port structure.
In some embodiments, the second housing has a first bore that is a through hole, the first housing has a second bore that is a through hole, or is a blind hole, and when the second bore is a through hole, the second bore is structurally mated with the external female spigot through the male spigot.
In some embodiments, the inner rotor is coupled to an outer drive shaft, the coupling being a spline coupling, or a flat key coupling, or an interference fit coupling.
According to the external oil pump device provided by the utility model, the plurality of oil outlet holes are integrated, the number of the oil outlet channels can be increased or reduced according to the structural requirement, and the oil outlet channels or the lubricating oil channels are connected in a plurality of oil outlet modes, so that the oil outlet channels are reduced, the arrangement of the oil pipes is simplified, and the volume and the arrangement difficulty of a lubricating system are increased.
Drawings
Fig. 1 is a schematic structural diagram of an external oil pump device according to an embodiment of the present utility model.
The reference numerals are expressed as:
1. a housing assembly; 2. an inner rotor; 3. an outer rotor; 4. an oil inlet duct; 5. an oil outlet duct; 6. an oil seal; 7. a first housing; 8. a second housing; 9. a thread structure; 10. a spigot structure; 11. wear-resistant liners; 12. a first bore; 13. a second bore; 14. an outer spigot; 15. and an oil seal seat.
Detailed Description
Referring to fig. 1 in combination, according to an embodiment of the present utility model, an external oil pump device is provided, including a housing assembly 1, where the housing assembly 1 includes a first housing 7 and a second housing 8 that are detachably connected to form an oil inlet cavity and an oil outlet cavity, an inner rotor 2 and an outer rotor 3 are disposed in the first housing 7, the inner rotor 2 is meshed with the outer rotor 3 through a gear, one end of the second housing 8 is provided with an oil inlet channel 4, the other end is provided with at least two oil outlet channels 5, the oil inlet channel 4 is communicated with the oil inlet cavity, and the oil outlet channel 5 is communicated with the oil outlet cavity.
In a specific embodiment, the oil outlet channels 5 are two channels, and the diameters of the two oil outlet channels 5 are not equal.
In a specific embodiment, the inner rotor 2 is an outer involute gear or an outer cycloid gear, the outer rotor 3 is an inner involute gear or a inner cycloid gear, the inner rotor 2 and the outer rotor 3 are meshed with each other to form a rotor, wear-resistant liners 11 are arranged at two ends of the rotor, and the wear-resistant liners 11 are respectively attached to the first casing 7 and the second casing 8.
In a specific embodiment, the oil inlet channel 4 comprises an oil inlet, the oil outlet channel 5 comprises an oil outlet, the oil inlet is a threaded structure 9, or a port structure 10, and/or the oil outlet is a threaded structure 9, or a port structure 10.
In a specific embodiment, the second housing 8 has a first inner hole 12, the first inner hole 12 is a through hole, the first housing 7 has a second inner hole 13, the second inner hole 13 is a through hole, or is a blind hole, and when the second inner hole 13 is a through hole, the second inner hole 13 is matched with an external inner spigot structure through an outer spigot 14.
In a specific embodiment, the inner rotor 2 is connected to an external drive shaft, the connection being a spline connection, or a flat key connection, or an interference fit connection.
Example 1
The first shell 7 and the second shell 8 of the shell assembly 1 are connected by adopting screws to form an oil inlet cavity and an oil return cavity. The inner rotor 2 is an outer cycloid gear, the outer rotor 3 is a hypocycloid gear, the inner rotor 2 and the outer rotor 3 are meshed with each other, the inner rotor 2 is connected with an external driving shaft through a spline, a flat key or interference fit, the axial thickness of the inner rotor 2 is the same as that of the outer rotor 3, wear-resistant liners 11 are assembled on two sides, the left end face of each wear-resistant liner 11 is attached to the first shell 7, and the right end face is attached to the second shell 8. The second casing 8 has outer tang 14 and two oil outlet channels 5, and the great oil outlet channel 5 oil-out of diameter sets up in the oil pump is outside, is screw thread structure 9, through the oil pipe intercommunication lubrication oil duct that is farther, and the less oil outlet channel 5 oil-out of diameter sets up in being close to lubrication oil duct department, and the structure 10 of opening, the direct intercommunication lubrication oil duct that is nearer, outer tang 14 cooperates with outside internal tang for connecting transmission box or oil blanket seat 15, and oil blanket 6 is equipped with to the inside tip one side pressure of oil blanket seat 15 and cooperates with outside drive shaft.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The utility model provides an external oil pump device, its characterized in that, includes casing assembly (1), casing assembly (1) is including first casing (7) and second casing (8) of detachable connection to form oil inlet chamber and play oily cavity, be provided with inner rotor (2) and outer rotor (3) in first casing (7), inner rotor (2) with outer rotor (3) pass through gear engagement, second casing (8) one end is provided with oil inlet duct (4), and the other end sets up two way at least oil outlet duct (5), oil inlet duct (4) with oil inlet cavity intercommunication, oil outlet duct (5) with play oily cavity intercommunication.
2. The external oil pump device according to claim 1, wherein the oil outlet channels (5) are two channels, and the diameters of the two oil outlet channels (5) are not equal.
3. The external oil pump device according to claim 1, wherein the inner rotor (2) is an external involute gear or an external cycloid gear, the outer rotor (3) is an internal involute gear or a internal cycloid gear, the inner rotor (2) and the outer rotor (3) are meshed with each other to form a rotor, wear-resistant liners (11) are arranged at two ends of the rotor, and the wear-resistant liners (11) are respectively attached to the first housing (7) and the second housing (8).
4. The external oil pump device according to claim 1, characterized in that the oil inlet channel (4) comprises an oil inlet, the oil outlet channel (5) comprises an oil outlet, the oil inlet is a threaded structure (9), or a port structure (10), and/or the oil outlet is a threaded structure (9), or a port structure (10).
5. The external oil pump device according to claim 1, characterized in that the second housing (8) has a first inner bore (12), the first inner bore (12) is a through hole, the first housing (7) has a second inner bore (13), the second inner bore (13) is a through hole, or is a blind hole, and when the second inner bore (13) is a through hole, the second inner bore (13) is structurally matched with an external inner spigot through an external spigot (14).
6. The external oil pump device according to claim 1, characterized in that the inner rotor (2) is connected to an external drive shaft, the connection being a spline connection, or a flat key connection, or an interference fit connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320988582.3U CN219911701U (en) | 2023-04-27 | 2023-04-27 | External oil pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320988582.3U CN219911701U (en) | 2023-04-27 | 2023-04-27 | External oil pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911701U true CN219911701U (en) | 2023-10-27 |
Family
ID=88440868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320988582.3U Active CN219911701U (en) | 2023-04-27 | 2023-04-27 | External oil pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911701U (en) |
-
2023
- 2023-04-27 CN CN202320988582.3U patent/CN219911701U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |