CN111207003B - Crankshaft rear oil seal seat, engine oil return structure, engine and vehicle - Google Patents
Crankshaft rear oil seal seat, engine oil return structure, engine and vehicle Download PDFInfo
- Publication number
- CN111207003B CN111207003B CN201811400817.2A CN201811400817A CN111207003B CN 111207003 B CN111207003 B CN 111207003B CN 201811400817 A CN201811400817 A CN 201811400817A CN 111207003 B CN111207003 B CN 111207003B
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- Prior art keywords
- oil
- engine
- air pump
- oil return
- gear
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- 239000003921 oil Substances 0.000 title claims abstract description 180
- 239000010705 motor oil Substances 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000000630 rising effect Effects 0.000 claims 1
- 239000010721 machine oil Substances 0.000 abstract description 8
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to an oil seal seat behind bent axle, engine machine oil return structure, engine and vehicle, this oil seal seat behind bent axle is provided with oil gallery and the gear chamber that is used for holding air pump drive gear, oil gallery intercommunication engine oil passageway and gear chamber on the engine cylinder body, the lateral wall of gear chamber is provided with the opening, so that air pump drive gear can be connected with bent axle transmission through the drive gear mechanism who sets up in the crankcase, the lateral wall is provided with the oil storage tank in the below of air pump drive wheel and the position that corresponds to the opening part, this oil storage tank is provided with the entry and the export towards the open-ended that are close to the oil gallery, so that the machine oil that comes from the oil gallery flows into the oil storage tank and can flow out to the crankcase through the gear chamber, wherein, the diapire of oil storage tank is not higher than air pump drive gear's minimum. Through above-mentioned technical scheme, the oil return that this disclosure provided can solve when relying on gravity nature oil return is not smooth, machine oil deposits stifled technical problem.
Description
Technical Field
The utility model relates to an automobile engine technical field, specifically relate to a bent axle rear oil seal seat, engine oil return structure, engine and vehicle.
Background
In the prior art, an air pump of an engine generally has two oil return modes, namely, oil return is realized by adding a special oil return device, namely oil return is realized through an oil return pipe; and the oil returns naturally, namely the oil returns by depending on the gravity of the engine oil. The selection of the oil return mode mainly depends on the transmission mode of the air pump, and if the air pump adopts belt transmission, an oil return pipe needs to be added for oil return; if the air pump is driven by gears or chains, natural oil return is adopted.
The oil return pipe can ensure smooth oil return of the air pump, but the cost of the engine, the assembly beat of the engine and the assembly difficulty can be increased, and meanwhile, the oil leakage point where oil leakage can occur can be increased, and the reliability of the engine can be reduced. The natural oil return mode depends on gravity oil return, and under the condition of no other reliable power, the oil return path is unstable, so that the problems of unsmooth oil return and blockage of engine oil are easily caused.
Disclosure of Invention
The utility model aims at providing a bent axle rear oil seal seat, engine machine oil return structure, engine and vehicle, this bent axle rear oil seal seat can solve the oil return unsmooth, the stifled technical problem of machine oil deposit when relying on gravity nature oil return.
In order to achieve the above object, the present disclosure provides a crankshaft rear oil seal seat, which is provided with an oil return and a gear chamber for accommodating an air pump driving gear, wherein an oil return hole communicates an engine oil passage on an engine cylinder body with the gear chamber, a side wall of the gear chamber is provided with an opening, so that the air pump driving gear can be in transmission connection with a crankshaft through a transmission gear mechanism arranged in the crankshaft, the side wall is arranged below the air pump driving gear and corresponds to the position of the opening, the oil storage tank is provided with an inlet and an outlet, the inlet is close to the oil return hole, so that the engine oil from the oil return hole flows into the oil storage tank through the gear chamber, the outlet faces the opening, so that the engine oil in the oil storage tank can flow out and flow into the crankshaft, wherein, the bottom wall of the oil storage tank is not higher than the lowest point of the air pump driving gear.
Optionally, the bottom wall is connected to a hole wall of the oil return hole at the inlet.
Optionally, at least a portion of the bottom wall at the outlet is configured to be parallel to a horizontal plane.
Optionally, in a circumferential direction of the gear chamber, a smooth transition is made between the bottom wall of the oil reservoir and the side wall of the gear chamber.
Optionally, the bottom wall extends from the opening at least beyond a corresponding lowest point of the air pump drive gear in a circumferential direction of the gear chamber.
Optionally, the lowest position of the orifice of the oil return hole is not lower than the position corresponding to the lowest point of the air pump driving gear.
On the basis of the technical scheme, the present disclosure still provides an engine oil return structure, oil return structure includes the oil gallery that sets up on the engine cylinder body and oil gallery and gear chamber that set up on the oil seal seat behind the bent axle, the oil seal seat behind the bent axle be among the above-mentioned technical scheme oil seal seat behind the bent axle, oil return structure still includes the oil storage tank.
On the basis of the technical scheme, the disclosure also provides an engine which comprises the crankshaft rear oil seal seat or an engine oil return structure in the technical scheme.
On the basis of the technical scheme, the disclosure also provides a vehicle comprising the engine in the technical scheme.
Through above-mentioned technical scheme, this oil blanket seat behind bent axle that openly provides has the oil storage tank that sets up the opening part that is located air pump drive gear below and corresponds to the gear room on the lateral wall of gear room, and this oil storage tank can receive and store the machine oil that comes from in the oil gallery that communicates with the machine oil duct, and these machine oil can flow out and pass through the opening of gear room, crankcase in proper order and finally reach the oil pan through the export of oil storage tank. When the engine oil in the oil storage tank is increased and the liquid level of the engine oil rises to the lowest point contact with the air pump driving gear, the engine oil in the oil storage tank can be taken away by the rotating air pump driving gear and is thrown out to a transmission gear mechanism in the crankcase through an opening of the gear chamber, so that the liquid level of the engine oil in the oil storage tank is always not higher than the lowest point of the air pump driving gear, and the problem that the oil return is not smooth due to the fact that the engine oil is accumulated and blocked near an orifice of an oil return hole can be avoided; meanwhile, the engine oil taken away by the air pump driving gear can increase the lubrication of the air pump driving gear and a transmission gear mechanism in the crankcase, and the condition of dry friction caused by splash lubrication is improved; in addition, when the air pump driving gear is meshed with the transmission gear mechanism, a large amount of heat can be generated, the taken-away engine oil is beneficial to cooling the gear, and the service life of the gear is prolonged. The engine oil return structure, the engine and the vehicle provided by the disclosure comprise the crankshaft rear oil seal seat in the technical scheme, have the same technical effect as the crankshaft rear oil seal seat, and are not repeated herein in order to avoid unnecessary repetition.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a front view of an oil return structure in an embodiment of the present disclosure;
fig. 2 is a left side view of fig. 1.
Description of the reference numerals
1-engine cylinder block, 11-engine oil gallery, 2-crankshaft rear oil seal seat, 21-oil return hole, 211-hole wall, 22-gear chamber, 221-side wall, 222-opening, 23-oil storage tank, 231-inlet, 232-outlet, 233-bottom wall, 3-air pump driving gear, 4-crankcase, 41-driving wheel and 42-driving wheel.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the use of the directional terms such as "up and down" generally refers to up and down along the gravity direction when the engine oil is returned, referring to the drawing directions of fig. 1 and 2; "inner and outer" generally refers to inner and outer relative to the profile of the corresponding component. Furthermore, in the following description, in the drawings, like reference numerals in different drawings denote like elements.
According to the embodiment of the present disclosure, a crankshaft rear oil seal seat is provided, the crankshaft rear oil seal seat 2 is provided with an oil return hole 21 and a gear chamber 22 for accommodating an air pump driving gear 3, the oil return hole 21 communicates an oil passage 11 on an engine block 1 with the gear chamber 22, a side wall 221 of the gear chamber 22 is provided with an opening 222 so that the air pump driving gear 3 can be in transmission connection with a crankshaft through a transmission gear mechanism provided in a crankcase 4, the side wall 221 is provided with an oil storage tank 23 below the air pump driving gear 3 and corresponding to the position of the opening 222, the oil storage tank 23 is provided with an inlet 231 and an outlet 232, the inlet 231 is close to the oil return hole 21 so that oil from the oil return hole 21 flows into the oil storage tank 23 through the gear chamber 22, the outlet 232 faces the opening 222 so that the oil in the oil storage tank 23 can flow out and flow into the crankcase 4, wherein, the bottom wall 233 of the oil reservoir 23 is not higher than the lowest point of the air pump drive gear 3, as shown with reference to fig. 1 and 2. Wherein the driving wheel 41 in the crankcase 4 is driven by the crankshaft, the driving wheel 41 is meshed with the driving wheel 42, and the driving wheel 42 is meshed with the air pump driving gear 3 at the opening 222 to drive the air pump driving gear 3 to rotate.
By the technical scheme, the crankshaft rear oil seal seat 2 provided by the disclosure is provided with the oil storage groove 23 which is arranged on the side wall 221 of the gear chamber 22, is positioned below the air pump driving gear 3 and corresponds to the opening 222 of the gear chamber 22, the oil storage groove 23 can receive and store the engine oil from the oil return hole 21 communicated with the engine oil channel 11, and the engine oil can flow out through the outlet 232 of the oil storage groove 23 and sequentially passes through the opening 222 of the gear chamber 22 and the crankcase 4 to finally reach the oil pan. When the oil in the oil storage tank 23 is increased and the oil level rises to the lowest point contact with the air pump driving gear 3, the oil in the oil storage tank 23 can be taken away by the rotating air pump driving gear 3 and thrown out to the transmission gear mechanism in the crankcase 4 through the opening 222 of the gear chamber 22, so that the oil level in the oil storage tank 23 is not higher than the lowest point of the air pump driving gear 3 all the time, and the problem of unsmooth oil return caused by the oil accumulation and blockage near the orifice of the oil return hole 21 can be avoided; meanwhile, the engine oil taken away by the air pump driving gear 3 can increase the lubrication of the air pump driving gear 3 and a transmission gear mechanism in the crankcase 4, and improve the condition of dry friction caused by splash lubrication; in addition, when the air pump driving gear 4 is meshed with the transmission gear mechanism, a large amount of heat can be generated, the taken oil is beneficial to cooling the gear, and the service life of the gear is prolonged.
In order to allow the oil in the oil return hole 21 to flow into the oil reservoir 23, the bottom wall 233 is connected to the hole wall 211 of the oil return hole 21 at the inlet 231 to guide the oil from the oil return hole 21 into the oil reservoir 23, and to prevent the oil from accumulating and clogging at the hole opening of the oil return hole 21, as shown in fig. 2.
In order to enable the oil reservoir 23 to store therein oil which can in turn flow out of the outlet 232 of the oil reservoir 23, at least the portion of the bottom wall 233 at the outlet 232 is configured parallel to the horizontal plane, as shown with reference to fig. 1. The bottom wall 233 may also be a portion between the inlet 231 and the outlet 232 configured to be parallel to a horizontal plane.
In order to enable the oil level in the oil reservoir 23 to contact the tooth crest of the air pump drive gear 3, the bottom wall 233 extends from the opening 222 at least beyond the position corresponding to the lowest point of the air pump drive gear 3 in the circumferential direction of the gear chamber 22 (i.e., in the rotational direction of the air pump drive gear 3), as shown with reference to fig. 1.
In order to enable the oil level in the oil reservoir 23 to sufficiently contact the tooth top surface of the air pump drive gear 3, the bottom wall 233 of the oil reservoir 23 and the side wall 221 of the gear chamber 22 are smoothly transitioned in the circumferential direction of the gear chamber 22 so that the area of the oil level is as large as possible, whereby the number of teeth of the air pump drive gear 3 that contact the oil level is increased, contributing to increased lubrication of the air pump drive gear 3, as shown with reference to fig. 1.
When the oil return amount is large, in order to prevent oil from accumulating and blocking the lowest position of the oil return hole 21 in the oil return hole 21 and the oil reservoir 23, which is not lower than the position corresponding to the lowest point of the air pump drive gear 3, refer to fig. 2. When the oil return amount of the engine oil is large, the engine oil is ejected from the oil return hole 21 in an ejection manner, when the lowest position of the orifice of the oil return hole 21 is not lower than the position corresponding to the lowest point of the air pump driving gear 3, the engine oil in the oil return hole 21 can be directly ejected onto the air pump driving gear 3, and the rotating air pump driving gear 3 can throw the engine oil out, so that the situation that the engine oil is accumulated in the oil return hole 21 and the oil storage tank 23 to cause unsmooth oil return is prevented.
On the basis of the technical scheme, the present disclosure still provides an engine oil return structure, oil return structure includes oil gallery 11 and the oil gallery 21 and the gear room 22 that set up on the oil seal seat 2 behind the bent axle that set up on the engine cylinder block 1, oil seal seat 2 is behind the bent axle among the above-mentioned technical scheme oil seal seat 2 behind the bent axle, oil return structure still includes oil storage tank 23.
Through the technical scheme, the engine oil return structure provided by the disclosure has the same technical effects as the crankshaft rear oil seal seat 2, and unnecessary repetition is avoided, and the unnecessary repetition is not repeated herein.
On the basis of the technical scheme, the disclosure also provides an engine which comprises the crankshaft rear oil seal seat 2 or an engine oil return structure in the technical scheme.
Through the technical scheme, the engine provided by the disclosure has the technical effects that the crankshaft rear oil seal seat 2 or the engine oil return structure is the same, and unnecessary repetition is avoided, so that the repeated description is omitted.
On the basis of the technical scheme, the disclosure also provides a vehicle which comprises the engine.
Through the technical scheme, the vehicle provided by the disclosure has the same technical effects as the engine, and unnecessary repetition is avoided, so that the detailed description is omitted.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (9)
1. A crankshaft rear oil seal seat (2) is provided with an oil return hole (21) and a gear chamber (22) used for accommodating an air pump driving gear (3), wherein the oil return hole (21) is communicated with an engine oil channel (11) on an engine cylinder body (1) and the gear chamber (22), the crankshaft rear oil seal seat is characterized in that a side wall (221) of the gear chamber (22) is provided with an opening (222) so that the air pump driving gear (3) can be in transmission connection with a crankshaft through a transmission gear mechanism arranged in a crankcase (4), the side wall (221) is provided with an oil storage groove (23) below the air pump driving gear (3) and corresponding to the position of the opening (222), the oil storage groove (23) is provided with an inlet (231) and an outlet (232), the inlet (231) is close to the oil return hole (21) so that engine oil from the oil return hole (21) flows into the oil storage groove (23) through the gear chamber (22), the oil level in the oil storage tank (23) can be contacted with the air pump driving gear (3) when rising so that the air pump driving gear (3) can throw the oil out of the crankcase (4) through the opening (222), the outlet (232) faces the opening (222) so that the oil in the oil storage tank (23) can flow out and flow into the crankcase (4), wherein the bottom wall (233) of the oil storage tank (23) is not higher than the lowest point of the air pump driving gear (3).
2. The crankshaft rear oil seal holder according to claim 1, characterized in that the bottom wall (233) is connected with the hole wall (211) of the oil return hole (21) at the inlet (231).
3. The crankshaft rear oil seal according to claim 1, characterized in that at least a portion of the bottom wall (233) at the outlet (232) is configured to be parallel to a horizontal plane.
4. The crankshaft rear oil seal holder according to claim 1, characterized in that, in the circumferential direction of the gear chamber (22), the bottom wall (233) of the oil reservoir (23) and the side wall (221) of the gear chamber (22) are smoothly transitioned.
5. The crankshaft rear oil seal holder according to claim 1, characterized in that the bottom wall (233) extends from the opening (222) at least beyond a corresponding position of a lowest point of the air pump drive gear (3) in a circumferential direction of the gear chamber (22).
6. The crankshaft rear oil seal seat according to the claim 1, characterized in that the lowest position of the orifice of the oil return hole (21) is not lower than the corresponding position of the lowest point of the air pump driving gear (3).
7. An engine oil return structure, the oil return structure includes an engine oil passage (11) arranged on an engine cylinder body (1), and an oil return hole (21) and a gear chamber (22) arranged on a crankshaft rear oil seal seat (2), characterized in that the crankshaft rear oil seal seat (2) is the crankshaft rear oil seal seat (2) according to any one of claims 1 to 6, and the oil return structure further includes the oil storage tank (23).
8. An engine, characterized by comprising the crankshaft rear oil seal seat (2) of any one of claims 1 to 6 or the engine oil return structure of claim 7.
9. A vehicle characterized by comprising the engine of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400817.2A CN111207003B (en) | 2018-11-22 | 2018-11-22 | Crankshaft rear oil seal seat, engine oil return structure, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400817.2A CN111207003B (en) | 2018-11-22 | 2018-11-22 | Crankshaft rear oil seal seat, engine oil return structure, engine and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111207003A CN111207003A (en) | 2020-05-29 |
| CN111207003B true CN111207003B (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811400817.2A Active CN111207003B (en) | 2018-11-22 | 2018-11-22 | Crankshaft rear oil seal seat, engine oil return structure, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111207003B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288874B (en) * | 2022-06-20 | 2024-07-30 | 江苏常发农业装备股份有限公司 | Engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010071212A (en) * | 2008-09-19 | 2010-04-02 | Yamaha Motor Co Ltd | Internal combustion engine and vehicle equipped with the same |
| CN107587910A (en) * | 2016-07-08 | 2018-01-16 | 丰田自动车株式会社 | Feeding lubricating device for the chain in internal combustion engine |
| CN107905908A (en) * | 2017-12-14 | 2018-04-13 | 马鞍山市常立发机械制造有限公司 | One kind is new can draining gear chamber |
| CN108266518A (en) * | 2016-12-29 | 2018-07-10 | 东洋电机制造株式会社 | Rolling stock geared system |
-
2018
- 2018-11-22 CN CN201811400817.2A patent/CN111207003B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010071212A (en) * | 2008-09-19 | 2010-04-02 | Yamaha Motor Co Ltd | Internal combustion engine and vehicle equipped with the same |
| CN107587910A (en) * | 2016-07-08 | 2018-01-16 | 丰田自动车株式会社 | Feeding lubricating device for the chain in internal combustion engine |
| CN108266518A (en) * | 2016-12-29 | 2018-07-10 | 东洋电机制造株式会社 | Rolling stock geared system |
| CN107905908A (en) * | 2017-12-14 | 2018-04-13 | 马鞍山市常立发机械制造有限公司 | One kind is new can draining gear chamber |
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| Publication number | Publication date |
|---|---|
| CN111207003A (en) | 2020-05-29 |
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Application publication date: 20200529 Assignee: Zhucheng Futian International Trade Co.,Ltd. Assignor: BEIQI FOTON MOTOR Co.,Ltd. Contract record no.: X2023980043791 Denomination of invention: Crankshaft rear oil seal seat, engine oil return structure, engine and vehicle Granted publication date: 20210917 License type: Common License Record date: 20231018 |
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