CN209856358U - Bearing lubricating mechanism of transmission and transmission - Google Patents
Bearing lubricating mechanism of transmission and transmission Download PDFInfo
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- CN209856358U CN209856358U CN201920571908.6U CN201920571908U CN209856358U CN 209856358 U CN209856358 U CN 209856358U CN 201920571908 U CN201920571908 U CN 201920571908U CN 209856358 U CN209856358 U CN 209856358U
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Abstract
The utility model discloses a bearing lubrication mechanism and derailleur of derailleur. Wherein, the lubricated mechanism of derailleur includes: the transmission comprises a transmission shell, an input shaft bearing, a differential gear, an input shaft gear, an oil collecting tank and an oil stirring wheel. The oil collecting groove can provide a small amount of additional oil storage space above the oil level line of the oil storage space, and the partial periphery of the oil stirring wheel extends into the oil collecting groove, so that the lubricating oil in the oil collecting groove can be stirred to carry out splash lubrication on the input shaft bearing. Since the rotation of the oil agitating vessel is directly associated with the input shaft without depending on the differential gear, even if the splash lubrication based on the differential gear fails due to long-term parking or idling of the vehicle, the oil agitating vessel can perform the splash lubrication on the input shaft bearing with the lubricating oil in the oil sump in response to the rotation of the input shaft, so that the lubrication effect of the transmission during the failure period of the splash lubrication based on the differential gear can be improved to reduce the probability of the failure of the input shaft bearing.
Description
Technical Field
The utility model relates to a bearing lubrication technology of derailleur, in particular to bearing lubrication mechanism of derailleur reaches a derailleur including this bearing lubrication mechanism.
Background
Lubricating oil is stored in the housing of the transmission. Due to the space requirement of the entire vehicle, the input shaft bearing of the transmission may be designed to be located above the oil level line of the lubricating oil, so that the lubrication thereof can only rely on the differential gear to stir up the lubricating oil splash during operation, i.e., the splash lubrication based on the differential gear.
However, after the vehicle is parked or idled for a long time, the stalling of the differential gear may cause the splash lubrication to fail, so that the lubricating oil adhered to the input shaft bearing is short, and thus, during the period in which the splash lubrication based on the differential gear fails (including a low speed state in which the differential gear stalls or the rotational speed is insufficient to agitate the splash of the lubricating oil), the probability of the input shaft bearing failing due to the insufficient lubrication is liable to increase.
Based on the above requirements, how to timely lubricate the transmission during the period of the failure of the splash lubrication based on the differential gear becomes a technical problem to be solved in the prior art.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a bearing lubrication mechanism of gearbox can improve the lubricated effect of derailleur in the inefficacy period based on the splash lubrication of differential gear.
In the above embodiments of the present invention, the bearing lubrication mechanism of the transmission includes:
the transmission comprises a transmission shell, a transmission cover and a transmission cover, wherein the transmission shell is provided with a cavity, and the bottom of the cavity is provided with an oil storage space for containing lubricating oil;
the input shaft bearing is arranged in the cavity, carries an input shaft and is positioned above an oil level line of the oil storage space;
a differential gear drivingly connected with the input shaft within the cavity and having a lower boundary that falls below an oil level line in the oil storage space;
an input shaft gear mounted to the input shaft within the cavity;
an oil sump disposed within the cavity above an oil level line of the oil storage space;
the oil stirring wheel is in transmission connection with the input shaft in the cavity, the partial periphery of the oil stirring wheel extends into the oil collecting groove, and the oil stirring wheel is adjacent to the input shaft bearing.
Optionally, the differential gear is close to one end of the cavity, the oil stirring vessel is close to the other end of the cavity, the input shaft gear is located between the differential gear and the oil stirring vessel, and the lower boundary of the input shaft gear is suspended above the oil level of the oil storage space.
Optionally, the bottom surface of the cavity slopes downward from the end of the stirring wheel to the end of the differential gear.
Optionally, the oil sumps extend in a circular arc shape matching a partial outer periphery of the oil stirring vessel.
Optionally, the bearing lubrication mechanism further comprises:
the oil baffle is arranged in the cavity in a lubricating oil splashing range, and extends from the splashing range to the oil collecting tank.
Optionally, the oil collecting groove is arranged below one side of the oil stirring vessel far away from the input shaft gear, and the oil baffle plate is arranged above the oil stirring vessel on one side of the input shaft gear close to the oil stirring vessel.
Optionally, the oil baffle extends from the top of the input shaft gear to the side of the oil collecting groove far away from the input shaft gear in a bending way.
Optionally, the oil mixing wheel comprises a transmission gear and a paddle wheel, wherein the transmission gear is in meshing transmission with the input shaft gear, the paddle wheel is in coaxial transmission with the transmission gear, and the paddle wheel is adjacent to the input shaft bearing.
Optionally, the transmission housing further opens a lubricating oil filling opening, and the lubricating oil filling opening is disposed above the oil sump.
Another embodiment of the present invention provides a transmission including a bearing lubrication mechanism as described above.
As can be seen from the above, the oil sump may provide a small amount of additional oil storage space above the oil level line of the oil storage space, and a partial outer periphery of the oil stirring wheel adjacent to the input shaft bearing protrudes into the oil sump and thus may stir the lubricating oil in the oil sump to perform splash lubrication on the input shaft bearing. Since the rotation of the oil agitating vessel is directly associated with the input shaft without depending on the differential gear, even if the splash lubrication based on the differential gear fails due to long-term parking or idling of the vehicle, the oil agitating vessel can perform the splash lubrication on the input shaft bearing with the lubricating oil in the oil sump in response to the rotation of the input shaft, so that the lubrication effect of the transmission during the failure period of the splash lubrication based on the differential gear can be improved to reduce the probability of the failure of the input shaft bearing.
Drawings
The following drawings are merely illustrative and explanatory of the present application and do not limit the scope of the present application.
FIG. 1 is a schematic diagram of a transmission lubrication mechanism in one embodiment.
Description of the reference symbols
100 Transmission housing
110 differential gear
120 input shaft gear
130 oil collecting tank
140 oil stirring vessel
141 transmission gear
142 paddle wheel
150 oil baffle
160 lubricating oil filling port
170 oil level line
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, in one embodiment, a bearing lubrication mechanism for a transmission includes: the transmission housing 100, the input shaft bearing, the differential gear 110, the input shaft gear 120, the oil sump 130, and the oil stirring vessel 140.
The transmission housing 100 has a cavity, and the bottom of the cavity has an oil storage space for containing lubricating oil; the differential gear 110 is in driving connection with the input shaft within the cavity and the lower boundary of the differential gear falls below the oil level line 170 in the oil storage space; the input shaft gear 120 is mounted to the input shaft within the cavity; the oil sump 130 is arranged in the cavity above the oil level line of the oil storage space; the oil stirring wheel 140 is in drive connection with the input shaft within the cavity, a partial outer periphery of the oil stirring wheel 140 extends into the oil sump 130, and the oil stirring wheel 140 is adjacent to the input shaft bearing.
The input shaft bearing and the input shaft are not shown in fig. 1 because they are shielded by the differential gear 110 and the input shaft gear 120. An input shaft bearing is disposed within the cavity, the input shaft bearing carrying the input shaft and being located above an oil level line 170 of the oil storage space. The input shaft can be driven by the differential gear 110 through a synchronizer and output shaft connection in the prior art.
In consideration of the layout space of the entire vehicle and the transmission gear, the differential gear 110 may be close to one end of the cavity, the oil stirring wheel 140 may be close to the other end of the cavity, the input shaft gear 120 may be located between the differential gear 110 and the oil stirring wheel 140, and the lower boundary of the input shaft gear 120 is suspended above the oil level line 170 of the oil storage space.
In order to collect more lubricating oil on one side of the differential gear 110 so as to exert the maximum splashing effect, the bottom surface of the cavity can be inclined downwards from the end of the oil stirring wheel 140 to the end of the differential gear 110, so that the overall arrangement space of the transmission is saved, the using amount of the lubricating oil of the transmission can be reduced, and the oil stirring loss is reduced.
In order to enable the oil stirring wheel 140 to stir the small amount of lubricating oil stored in the oil collecting tank 130 more efficiently ("small amount" is relative to the amount of oil in the oil storage space in the transmission case 100), the oil collecting tank 130 may be configured to extend in a circular arc shape matching the local outer periphery of the oil stirring wheel 140, so that the local outer periphery of the oil stirring wheel 140 falls into the oil collecting tank 130, thereby achieving the lubricating effect of the oil stirring wheel 140 on the transmission input shaft bearing.
Of course, in order to improve the effect of splash lubrication and improve the efficiency of oil storage in the oil sump 130, the bearing lubrication mechanism in the present embodiment may further include an oil baffle 150.
As can be seen from fig. 1, the oil deflector 150 is arranged in the cavity in the oil splash zone, and the oil deflector 150 extends from the splash zone towards the oil sump 130. Specifically, the oil sump 130 is disposed below a side of the oil stirring boat 140 away from the input shaft gear 120, and the oil baffle 150 is disposed above the oil stirring boat 140 on a side of the input shaft gear 120 adjacent to the oil stirring boat 140. For example, the oil deflector 150 extends from the top of the input shaft gear 120 to the side of the oil sump 130 away from the input shaft gear 120.
Through the arrangement of the oil baffle plate 150, under the condition that the differential gear 110 performs splash lubrication on the input shaft gear 120, the oil baffle plate 150 can also collect the lubricating oil splashed by the differential gear 110, so that the oil collecting groove 130 is filled with the lubricating oil and even can be in an overflow state of the lubricating oil. Therefore, when the differential gear 110 rotates slowly or stops, the oil sump 130 can be filled with the lubricating oil to be stirred and splashed by the oil stirring vessel 140 as long as the input shaft gear 120 rotates.
In order to improve the splash lubrication efficiency of the oil agitation vessel 140, the oil agitation vessel 140 may include a transmission gear 141 and a paddle wheel 142, wherein the transmission gear 141 is in mesh transmission with the input shaft gear 120, the paddle wheel 142 is in coaxial transmission with the transmission gear 141, and the paddle wheel 142 is adjacent to the input shaft bearing. Because the paddle wheel 142 is adjacent to the input shaft bearing, the splash lubrication of the oil stirring wheel 140 can achieve a better lubrication effect even under the condition of lower strength. In actual design, since the input shaft gear 120 and the input shaft bearing may have a positional deviation in the axial direction of the input shaft, the transmission gear 141 and the paddle wheel 142 of the agitating tanker 140 may also be designed to be stacked in the axial direction to match the positional deviation.
Considering the oil filling requirement of the lubricating oil and the oil storage efficiency of the oil collecting tank 130, the transmission housing 100 is further provided with a lubricating oil filling port 160, and the lubricating oil filling port 160 can be arranged above the oil collecting tank 130, and the oil filling port 160 is arranged in the direction, so that when the automobile leaves the factory and is added with the transmission lubricating oil or the transmission lubricating oil is overhauled and replaced, the lubricating oil can firstly pass through the oil collecting tank 130 and then reach the oil storage space in the transmission housing 100 when the transmission lubricating oil is added through the lubricating oil filling port 160, and the oil collecting tank 130 is always kept in a full oil state.
The above list of details is only for the feasible embodiments of the present invention and is not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of the features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.
Claims (10)
1. A bearing lubrication mechanism for a transmission, comprising:
the transmission comprises a transmission shell, a transmission cover and a transmission cover, wherein the transmission shell is provided with a cavity, and the bottom of the cavity is provided with an oil storage space for containing lubricating oil;
the input shaft bearing is arranged in the cavity, carries an input shaft and is positioned above an oil level line of the oil storage space;
a differential gear drivingly connected with the input shaft within the cavity and having a lower boundary that falls below an oil level line in the oil storage space;
an input shaft gear mounted to the input shaft within the cavity;
an oil sump disposed within the cavity above an oil level line of the oil storage space;
the oil stirring wheel is in transmission connection with the input shaft in the cavity, the partial periphery of the oil stirring wheel extends into the oil collecting groove, and the oil stirring wheel is adjacent to the input shaft bearing.
2. The bearing lubrication mechanism as claimed in claim 1, wherein said differential gear is located near one end of said cavity, said oil agitating vessel is located near the other end of said cavity, said input shaft gear is located between said differential gear and said oil agitating vessel, and a lower boundary of said input shaft gear is suspended above an oil level of said oil storage space.
3. The bearing lubrication mechanism according to claim 2, wherein a bottom surface of the cavity is inclined downward from the end where the oil agitating wheel is located toward the end where the differential gear is located.
4. The bearing lubrication mechanism according to claim 1, wherein said oil sump extends in a circular arc shape matching a partial outer periphery of said oil agitating vessel.
5. The bearing lubrication mechanism according to claim 1, further comprising:
the oil baffle is arranged in the cavity in a lubricating oil splashing range, and extends from the splashing range to the oil collecting tank.
6. The bearing lubrication mechanism according to claim 5, wherein said oil sump is disposed below a side of said oil agitating vessel remote from said input shaft gear, and said oil baffle is disposed above said oil agitating vessel on a side of said input shaft gear adjacent to said oil agitating vessel.
7. The bearing lubrication mechanism according to claim 6, wherein the oil baffle extends from the top of the input shaft gear to a side of the oil sump away from the input shaft gear.
8. The bearing lubrication mechanism according to claim 1, wherein said agitator wheel comprises a drive gear and a paddle wheel, wherein said drive gear is in geared drive with said input shaft gear, said paddle wheel is in coaxial drive with said drive gear, and said paddle wheel is adjacent to said input shaft bearing.
9. The bearing lubrication mechanism according to claim 8, wherein said transmission housing further defines a lubrication port, and said lubrication port is disposed above said sump.
10. A transmission characterized by comprising a bearing lubrication mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920571908.6U CN209856358U (en) | 2019-04-24 | 2019-04-24 | Bearing lubricating mechanism of transmission and transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920571908.6U CN209856358U (en) | 2019-04-24 | 2019-04-24 | Bearing lubricating mechanism of transmission and transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856358U true CN209856358U (en) | 2019-12-27 |
Family
ID=68939062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920571908.6U Active CN209856358U (en) | 2019-04-24 | 2019-04-24 | Bearing lubricating mechanism of transmission and transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209856358U (en) |
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2019
- 2019-04-24 CN CN201920571908.6U patent/CN209856358U/en active Active
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