CN112324898B - Self-adaptive lubricating oil level control structure and speed reducer - Google Patents
Self-adaptive lubricating oil level control structure and speed reducer Download PDFInfo
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- CN112324898B CN112324898B CN202011378486.4A CN202011378486A CN112324898B CN 112324898 B CN112324898 B CN 112324898B CN 202011378486 A CN202011378486 A CN 202011378486A CN 112324898 B CN112324898 B CN 112324898B
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- speed reducer
- lubricating oil
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
- F16H57/0452—Oil pans
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
Abstract
The utility model provides an inboard, around the shaft hole position of installation high-speed gear of self-adaptation lubricating oil level control structure and reduction gear about box, it is provided with the oil trap, leads oil trap and side wall board, and the side wall board of shaft hole below encloses into buffer oil groove with reduction gear housing inner wall, leads to establish the lubricating oil introducing port on the lower part of oil trap or the buffer oil groove, will splash the leading-in buffer oil groove of oil on the oil trap, and the side wall board is equipped with the oil-out of intercommunication oil storage tank, the position of oil-out is less than the lubricating oil liquid level of oil storage tank, and its opening size satisfies: when the speed reducer works at a low rotating speed, the outflow oil capacity of the speed reducer is larger than the inflow oil capacity of the lubricating oil inlet of the buffer oil tank, and when the speed reducer works at a high rotating speed, the outflow oil capacity of the speed reducer is smaller than or equal to the inflow oil capacity of the lubricating oil inlet of the buffer oil tank, the liquid level is dynamically adjusted through the buffer oil tank, the low-rotating-speed lubricating oil level and the high-rotating-speed lubricating oil level required by the lubricating liquid level in the working process are realized, the gear oil stirring loss is effectively reduced, and the efficiency of the speed reducer is improved.
Description
Technical Field
The invention relates to the technical field of automobile transmissions, in particular to a lubricating structure of a speed reducer.
Background
The endurance mileage is a key performance index of an automobile, particularly an electric automobile, and under the condition of the same oil quantity or electric quantity, the higher the transmission efficiency is, the longer the endurance mileage of the automobile is. The speed reducer is a core transmission part of the automobile, and the mileage of the automobile is directly influenced by the efficiency of the speed reducer.
The reducer generally comprises a reducer casing consisting of a left box body and a right box body, and a gear set arranged in the reducer casing, wherein the left box body and the right box body are used for installing and supporting the gear set and providing a sealed and clean working environment. The front of the reducer shell is provided with an oil storage tank for providing lubricating oil for the gear set. The smaller the torque loss in the transmission process of the speed reducer is, the higher the efficiency is, and the height of the lubricating oil surface of the speed reducer is directly related to the torque loss in the transmission process of the speed reducer and is a main factor of the torque loss of the speed reducer. The higher the lubricating oil level is, the deeper the speed reduction internal gear is immersed into the lubricating oil, the greater the torque loss caused in the transmission process is, and the lower the transmission efficiency is; the lower the lubricating oil level, the shallower the immersion of the reduction internal gear into the lubricating oil, the smaller the torque loss caused by the transmission process, and the higher the transmission efficiency. However, the lubricating oil level is too low, and the internal bearing and the gear have poor lubrication to cause reliability problem under the condition of low-speed rotating speed; the lubricating oil level is too high, the torque loss is large under the condition of high rotating speed, and the efficiency of the speed reducer is low.
The ideal lubricating oil level for the efficient and reliable operation of the speed reducer is that the lubricating oil level at low rotating speed is high, and the lubricating oil level at high rotating speed is low. Therefore, adaptive lubricating oil level control is critical to improving the efficiency and reliability of the speed reducer.
Disclosure of Invention
The invention aims to provide a self-adaptive lubricating oil level control structure of a speed reducer, which solves the control problem of high lubricating oil level at low rotating speed and low lubricating oil level at high rotating speed required by the lubricating oil level in the working process of the speed reducer, and improves the efficiency and the reliability of the speed reducer.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a reduction gear self-adaptation lubricating oil level control structure, includes the reduction gear casing of constituteing by left box and right box and installs the gear train in the reduction gear casing, has the oil storage tank in the reduction gear casing. The oil collecting plate, the oil guiding plate and the side enclosing plate are continuously and sequentially arranged to the lower side of the shaft hole from the upper side of the shaft hole to the lower side of the shaft hole along one side of the shaft hole in the inner sides of the left box body and the right box body around the shaft hole position of the high-speed gear, the side enclosing plate below the shaft hole and the inner wall of the speed reducer shell form a buffer oil groove, and the lowest position of the buffer oil groove is lower than the lubricating oil liquid level of the oil storage groove of the speed reducer.
And a lubricating oil introducing port is arranged at the lower part of the oil guide plate or on the buffer oil groove, and oil splashed onto the oil collection plate is introduced into the buffer oil groove. The side bounding wall is equipped with the oil-out of intercommunication oil storage tank, the oil-out position is less than the oil storage tank liquid level, and its opening size satisfies: the oil outflow capacity is greater than the amount of oil flowing into the lubricating oil inlet of the buffer oil groove when the speed reducer is operated at a low rotation speed, and is less than or equal to the amount of oil flowing into the lubricating oil inlet of the buffer oil groove when the speed reducer is operated at a high rotation speed.
By adopting the structure, when the speed reducer works at a low rotating speed, the lubricating oil collected by the oil collecting plate is relatively small, the oil quantity flowing in through the lubricating oil inlet of the buffer oil groove is equal to or less than the oil quantity flowing out from the outlet of the buffer oil groove of the left box body, and the oil quantity temporarily stored in the buffer oil groove is unchanged, so that the lubricating oil level of the oil storage groove of the speed reducer is also kept unchanged, and the lubrication of the gear set at the low rotating speed is ensured; when the speed reducer works at a high rotating speed, lubricating oil collected by the oil collecting plate is increased, the oil amount flowing in through the lubricating oil introducing port of the buffer oil tank is larger than the oil amount flowing out of the oil outlet, the oil amount temporarily stored in the buffer oil tank is increased, and the total amount of the inward lubricating oil is unchanged, so that the lubricating oil surface of the oil storage tank of the speed reducer is reduced, the speed reduction internal gear is immersed in the lubricating oil to be shallow, the torque loss caused by the transmission process is smaller, and the transmission efficiency is improved.
As the further optimization of the structure, the oil collecting plate, the oil guide plate and the side wall plate are respectively and correspondingly formed into a half part on the inner sides of the left box body and the right box body, and the two half parts are relatively folded to form the complete oil collecting plate, the oil guide plate and the side wall plate. The design is convenient for respectively forming half of the oil collecting plate, the oil guide plate and the side wall plate at one time when the left box body and the right box body are formed, the closed buffer oil groove is formed by the folded edge, the structure is simple, and the processing is convenient.
Although most of the lubricating oil splashed by the gear set splashes to the upper surface of the oil collecting plate, a small part of the lubricating oil splashes to the lower surface of the oil collecting plate, and in order to better adjust the lubricating oil level, therefore, as a further optimization of the structure, the lubricating oil introducing port is divided into a main introducing port and a secondary introducing port, and the main introducing port is arranged at the position of the notch of the upper enclosing plate of the oil buffer groove and is used for introducing a large amount of lubricating oil on the upper surface of the oil collecting plate into the main channel of the oil buffer groove. The auxiliary guide inlet is arranged at the position of the gap of the oil guide plate and guides a small amount of lubricating oil on the lower surface of the oil collection plate into the auxiliary channel of the buffer oil groove. In the structure, the design of the auxiliary lead-in ports of the left box body and the right box body also has the function of safe oil drainage of lubricating oil, the maximum oil storage capacity of the buffer oil groove can be ensured to be smaller than the design value, the lubricating liquid level is higher than the minimum liquid level, and the internal lubrication of the speed reducer is ensured to be sufficient.
As the further optimization of this structure, still transversely extend to the inner wall of box at the upper end of side bounding wall to the lateral surface, be formed with the last bounding wall, should go up the bounding wall and enclose into confined buffer oil groove jointly with side bounding wall and reduction gear casing inner wall together for buffer oil groove can be better temporarily the oil storage.
As the further optimization of this structure, the oil-out of buffer oil groove sets up in the edge of the inboard half side bounding wall of left side box, can effectively avoid the lubricating oil that buffer oil groove flows to directly dash out rotary gear and produce extra resistance.
As the further optimization of the structure, the auxiliary lead-in ports are formed after the edges of the two half oil guide plates of the left box body and the right box body are correspondingly provided with a notch, so that the lubricating oil of the left box body and the lubricating oil of the right box body can be conveniently shunted and collected.
As a further optimization of the structure, the front end of the oil collecting plate positioned above the shaft hole on the left box body is provided with an oil blocking part extending downwards, so that splashed lubricating oil can be collected and guided into the bearing chamber to lubricate the bearing.
Further, the invention also claims a speed reducer which is provided with the self-adaptive lubricating oil level control structure.
The self-adaptive lubricating oil level control structure designed by the invention dynamically adjusts the liquid level in the speed reducer box body through the buffer oil groove, realizes the requirements of the lubricating liquid level on high lubricating oil level at low rotating speed and low lubricating oil level at high rotating speed in the working process of the speed reducer, can effectively reduce the oil stirring loss of the gear and improves the efficiency of the speed reducer.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 assembly drawing of left and right cases of a decelerator
FIG. 2 shows a left box structure for adaptive lube level control;
FIG. 2A is an enlarged view of section I of FIG. 2;
FIG. 3 shows a right box structure for adaptive lube level control;
FIG. 3A is an enlarged view of section II of FIG. 3;
FIG. 4 is a partially enlarged view of the lubricant introduction port;
FIG. 5 is a view showing a positional relationship between the gear unit and the housing;
FIG. 6 is a diagram of the adaptive lubricating level control operation of the retarder.
In the figure: 1-left box body; 11-left box oil collecting plate; 12-left box oil guide plate; 13-left box lubricating oil pair leading-in port, namely the gap of the oil guide plate 12; 14-boarding the left box body; 15, a main lubricating oil inlet of the left box body, namely a gap of the upper coaming 14; 16-left box side coaming; 17-outlet of oil groove of left box, namely gap of side wall plate 16; 18-oil retaining part;
2-right box body; 21-right box oil collecting plate; 22-right box oil guide plate; 23-a right box lubricating oil pair introduction port, namely a notch of the oil guide plate 22; 24-a coaming plate is arranged on the right box body; 25-the right box lubricant main inlet, i.e. the gap in the upper shroud 24. 26-right box side coaming;
3-a gear set;
4, an oil storage tank; 41-lubricating oil level.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1, 5 and 6, the reducer comprises a reducer housing composed of a left case 1 and a right case 2, and a gear set 3 installed in the reducer housing, wherein an oil storage tank 4 is arranged in the reducer housing to store lubricating oil, and a lubricating oil level 41 is maintained at a certain height to ensure that the gear set 3 is lubricated.
Referring to fig. 2, 2A, 3 and 3A, the invention designs a self-adaptive lubricating oil level control structure in the shell of the speed reducer, the structure is that an oil collecting plate, an oil guiding plate and a side enclosing plate are continuously and sequentially arranged from the upper side of a shaft hole to the lower side of the shaft hole along one side of the shaft hole at the positions of the shaft hole surrounding the high-speed gear and at the inner sides of a left box body 1 and a right box body 2, the side enclosing plate below the shaft hole and the inner wall of the shell of the speed reducer enclose a buffer oil groove, and the lowest position of the buffer oil groove is lower than the lubricating oil level of the oil storage groove of the speed reducer.
For convenience of processing, the oil collecting plate, the oil guide plate and the side wall plate are integrally formed with the left box body 1 and the right box body 2, namely, the left box body oil collecting plate 11, the left box body oil guide plate 12 and the left box body side wall plate 16 are formed on the left box body 1, the right box body oil collecting plate 21, the right box body oil guide plate 22 and the right box body side wall plate 26 are formed on the right box body 2,
after the left box body 1 and the right box body 2 are assembled and folded, the finished oil collecting plate, the oil guide plate and the side wall plate are formed.
As a further example, in order to realize better temporary oil storage of the buffer oil groove, upper enclosing plates are also transversely extended to the inner wall of the box body from the upper ends of the side enclosing plates to the outer side surface, the upper enclosing plates are also formed on the left box body upper enclosing plate 14 and the right box body upper enclosing plate 24 which are respectively formed on the left box body and the right box body, and the upper enclosing plates, the side enclosing plates and the inner wall of the reducer shell together form the closed buffer oil groove.
As a further example, referring to FIG. 4, the lubricant inlet is divided into a lubricant main inlet and a lubricant auxiliary inlet, the lubricant main inlet is designed on the oil buffer tank, and preferably is opened on the upper enclosure plate, i.e. a notch is opened on the left box upper enclosure plate 14 as the left box lubricant main inlet 15, a notch is opened on the right box upper enclosure plate 24 as the right box lubricant main inlet 25, and the two notches are closed to form the lubricant main inlets, so that a large amount of lubricant on the upper surface of the oil collecting plate is guided into the main channel of the oil buffer tank. As a small part of oil splashes to the lower surface of the oil collecting plate, in order to better adjust the oil level of the lubricating oil, the lubricating oil auxiliary introducing port is designed on the oil guide plate, and the left and right oil guide plates are provided with a long notch to form a left box lubricating oil auxiliary introducing port 13 and a right box lubricating oil auxiliary introducing port 23, so that the lubricating oil auxiliary introducing ports are formed after being enclosed, and a small amount of lubricating oil on the lower surface of the oil collecting plate is introduced into the buffer oil groove.
The oil-out of this structure then sets up on the side bounding wall, communicates oil storage tank 4, and the position of this oil-out will be less than the lubricating oil liquid level of oil storage tank, and its opening size satisfies: the oil outflow capacity is greater than the amount of oil flowing into the lubricating oil inlet of the buffer oil groove when the speed reducer is operated at a low rotation speed, and is less than or equal to the amount of oil flowing into the lubricating oil inlet of the buffer oil groove when the speed reducer is operated at a high rotation speed. The oil outlet is preferably arranged at the edge of a side wall plate 16 of the left box body, namely an oil groove outlet 17 of the left box body in the figure, so that the lubricating oil flowing out of the buffer oil groove can be effectively prevented from directly rushing out of the rotary gear to generate extra resistance.
As a further embodiment, in order to simplify the structure inside the gearbox housing, the oil baffle structure inside the original gearbox housing may be designed to the structure, that is, the front end of the oil collecting plate 11 of the left gearbox housing above the shaft hole on the left gearbox housing 1 is provided with an oil baffle part extending downwards, and splashed lubricating oil is collected and guided into the bearing chamber to lubricate the bearing.
The working principle of the self-adaptive lubricating oil level control structure is as follows:
when the speed reducer works, the gear set 3 rotates to stir up the lubricating oil in the oil storage tank 4 to splash; the upper surfaces of the oil collecting plates 11 and 21 of the left and right tank bodies collect most of splashed lubricating oil, and the lubricating oil enters closed buffer oil grooves formed by the upper coamings of the left and right tank bodies, the side wall plates 14, 24, 16 and 26 and the inner walls along the upper surfaces of the oil guide plates 12 and 22 of the left and right tank bodies through the left and right tank body lubricating oil main guide inlets 15 and 25 for temporary storage. The lower surfaces of the left and right box oil collecting plates 11, 21 collect a small part of splashed lubricating oil, and the lubricating oil enters the buffer oil grooves for temporary storage through the left and right box lubricating oil auxiliary introducing ports 13, 23 along the lower surfaces of the left and right box oil guide plates 12, 22. The temporarily stored lubricating oil flows out sequentially through the oil outlet 16 of the left box buffer oil groove. When the oil amount flowing in through the left box lubricating oil main and auxiliary introducing ports 13, 23, 15 and 25 is equal to or less than the oil amount flowing out from the left box buffer oil groove outlet 16, the temporarily stored oil amount in the buffer oil groove is unchanged, and the lubricating oil surface 41 of the speed reducer is unchanged; when the oil amount flowing into the left and right box buffer oil groove main and auxiliary introducing ports 13, 23, 15 and 25 is larger than the oil amount flowing out of the buffer oil groove outlet 16, the temporarily stored oil amount in the buffer oil groove is increased, the total internal oil amount is not changed, and the lubricating oil surface 41 of the speed reducer is lowered. At this time, the part of the gear set (3) immersed in the lubricating oil becomes small, the oil stirring loss is low, and the efficiency is high.
Therefore, by adopting the structure of the invention, the self-adaptive lubricating oil level control can be realized:
when the speed reducer works at a low rotating speed, the splashing amount of the lubricating oil stirred by the rotating motion of the gear set 3 is relatively small, and the lubricating oil collected by the oil collecting plates 11 and 21 of the left and right box bodies is also relatively small; the oil quantity of lubricating oil flowing into the left box buffer oil groove main and auxiliary inlets 13, 23, 15 and 25 is equal to or less than the oil quantity capacity of the left box buffer oil groove outlet 16, the oil quantity temporarily stored in the closed oil grooves formed by the left and right box enclosing plates and the inner walls 14, 24, 16 and 26 is unchanged, and the lubricating oil level 41 of the speed reducer is unchanged. Along with the increase of the working rotating speed of the speed reducer, the splashing amount of the lubricating oil 4 stirred by the rotating motion of the gear set 3 is increased, and the lubricating oil collected by the oil collecting plates 11 and 21 of the left box body and the right box body is increased; the oil mass that lubricating oil flowed in through left and right box buffer oil groove major- minor entry 13, 23, 15, 25 is greater than the oil mass ability that left box buffer oil groove export 16 flowed out, and the oil mass that the closed buffer oil groove that left and right box bounding wall and inner wall 14, 24, 16, 26 formed temporarily stored increases, and inside total oil volume is unchangeable, and reduction gear lubricating oil level 41 reduces.
Claims (7)
1. A self-adaptive lubricating oil level control structure of a speed reducer comprises a speed reducer shell consisting of a left box body and a right box body and a gear set arranged in the speed reducer shell, wherein an oil storage tank is arranged in the speed reducer shell; it is characterized in that; an oil collecting plate, an oil guide plate and a side wall plate are continuously and sequentially arranged from the upper side of the shaft hole to the lower side of the shaft hole along one side of the shaft hole at the positions of the shaft hole surrounding the high-speed gear, on the inner sides of the left box body and the right box body, wherein the side wall plate below the shaft hole and the inner wall of the speed reducer shell body form a buffer oil groove in a surrounding manner, and the lowest position of the buffer oil groove is lower than the lubricating oil liquid level of the oil storage groove of the speed reducer;
a lubricating oil introducing port is arranged at the lower part of the oil guide plate or on the buffer oil groove, and oil splashed to the oil collection plate is introduced into the buffer oil groove; the side bounding wall is equipped with the oil-out of intercommunication oil storage tank, the position of oil-out is less than the lubricating oil liquid level of oil storage tank, and its opening size satisfies: when the speed reducer operates at a low rotating speed, the oil outflow capacity of the speed reducer is larger than the oil amount flowing into the lubricating oil inlet of the buffer oil groove, and when the speed reducer operates at a high rotating speed, the oil outflow capacity of the speed reducer is smaller than or equal to the oil amount flowing into the lubricating oil inlet of the buffer oil groove;
the oil collecting plate, the oil guide plate and the side wall plate are respectively and correspondingly molded into a half part on the inner sides of the left box body and the right box body, and the two half parts are relatively folded to form the complete oil collecting plate, the oil guide plate and the side wall plate;
the upper end of the side coaming transversely extends to the outer side surface to the inner walls of the left box body and the right box body to form an upper coaming, and the upper coaming, the side coaming and the inner wall of the speed reducer shell together form a closed buffer oil groove;
the lubricating oil inlet is divided into a main inlet and an auxiliary inlet, the main inlet is a notch arranged on the upper enclosing plate, a large amount of lubricating oil on the upper surface of the oil collecting plate is led into a main channel of the oil buffer groove, and the auxiliary inlet is a notch arranged on the oil guiding plate, and a small amount of lubricating oil on the lower surface of the oil collecting plate is led into the oil buffer groove.
2. The adaptive lubricating oil level control structure of the speed reducer according to claim 1, wherein the oil outlet is provided at an edge of a half side fence inside the left case.
3. The adaptive lubricating oil level control structure of the speed reducer according to claim 1, wherein the auxiliary introduction port is formed by relatively notching the edges of two half oil guide plates of the left box body and the right box body.
4. The adaptive lubricating oil level control structure of the speed reducer according to claim 1, wherein an oil baffle extending downwards is arranged at the front end of the oil collecting plate above the shaft hole of the right box body.
5. The adaptive lubricating oil level control structure of the speed reducer according to claim 4, wherein the oil baffle, the oil collecting plate, the oil guide plate, the side coaming and the upper coaming on the right box body, and the oil collecting plate, the oil guide plate, the side coaming and the upper coaming on the left box body are integrally formed into a whole plate.
6. The adaptive lubricating oil level control structure of a speed reducer according to claim 1, wherein the buffer oil sump outlet is provided in the left case.
7. A decelerator having an adaptive lubrication level control structure of the decelerator according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011378486.4A CN112324898B (en) | 2020-11-30 | 2020-11-30 | Self-adaptive lubricating oil level control structure and speed reducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011378486.4A CN112324898B (en) | 2020-11-30 | 2020-11-30 | Self-adaptive lubricating oil level control structure and speed reducer |
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| CN112324898A CN112324898A (en) | 2021-02-05 |
| CN112324898B true CN112324898B (en) | 2021-11-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10252871A (en) * | 1997-03-17 | 1998-09-22 | Fuji Heavy Ind Ltd | Lubricating structure of transmission for vehicle |
| CN202937777U (en) * | 2012-11-09 | 2013-05-15 | 江苏新瑞戴维布朗齿轮系统有限公司 | Box body of gear box |
| CN203477279U (en) * | 2013-07-30 | 2014-03-12 | 哈尔滨东安汽车发动机制造有限公司 | Transmission oil storage device |
| CN107166023A (en) * | 2017-06-30 | 2017-09-15 | 南京高精轨道交通设备有限公司 | For the lubricant level fuel-flow control structure in splash-lubricating system |
| CN207848373U (en) * | 2017-07-31 | 2018-09-11 | 浙江鑫可精密机械有限公司 | A kind of pure electric automobile speed changer with novel lubricating structure |
| CN111336238A (en) * | 2020-03-06 | 2020-06-26 | 涂美玲 | Rail transit vehicle gear lubricating oil adjusting device based on Bernoulli principle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10051356B4 (en) * | 2000-10-17 | 2004-05-06 | Daimlerchrysler Ag | Transmission for a reciprocating internal combustion engine |
-
2020
- 2020-11-30 CN CN202011378486.4A patent/CN112324898B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10252871A (en) * | 1997-03-17 | 1998-09-22 | Fuji Heavy Ind Ltd | Lubricating structure of transmission for vehicle |
| CN202937777U (en) * | 2012-11-09 | 2013-05-15 | 江苏新瑞戴维布朗齿轮系统有限公司 | Box body of gear box |
| CN203477279U (en) * | 2013-07-30 | 2014-03-12 | 哈尔滨东安汽车发动机制造有限公司 | Transmission oil storage device |
| CN107166023A (en) * | 2017-06-30 | 2017-09-15 | 南京高精轨道交通设备有限公司 | For the lubricant level fuel-flow control structure in splash-lubricating system |
| CN207848373U (en) * | 2017-07-31 | 2018-09-11 | 浙江鑫可精密机械有限公司 | A kind of pure electric automobile speed changer with novel lubricating structure |
| CN111336238A (en) * | 2020-03-06 | 2020-06-26 | 涂美玲 | Rail transit vehicle gear lubricating oil adjusting device based on Bernoulli principle |
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| CN112324898A (en) | 2021-02-05 |
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