CN112728050B - A coaxial planetary gear reducer with shell cooling - Google Patents
A coaxial planetary gear reducer with shell cooling Download PDFInfo
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- CN112728050B CN112728050B CN201911030193.4A CN201911030193A CN112728050B CN 112728050 B CN112728050 B CN 112728050B CN 201911030193 A CN201911030193 A CN 201911030193A CN 112728050 B CN112728050 B CN 112728050B
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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
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
本发明实施例公开一种带壳冷却的同轴式行星齿轮减速器。该减速器中，通过设置环形挡油板，使得环形挡油板与连接壁之间的缝隙形成存油空腔，通过在环形挡油板上设置上缺口和下缺口的方式，使得大部分的润滑油留在了存油空腔中，小部分的润滑油通过环形挡油板的外壁正下方的下缺口流回到存油槽，进一步使得在同轴式行星齿轮减速器工作时，行星架搅动的存油槽中的润滑油的油量减小，因此降低了搅油损失，同时，使得同轴式行星齿轮减速器的各个部件在运动时所受到的润滑油的阻力减小，提高了工作效率，并且也减小了同轴式行星齿轮减速器的各个部件与润滑油的摩擦，减少了同轴式行星齿轮减速器发热。
The embodiment of the present invention discloses a coaxial planetary gear reducer with shell cooling. In the reducer, an annular oil baffle is provided so that the gap between the annular oil baffle and the connecting wall forms an oil storage cavity, and an upper notch and a lower notch are provided on the annular oil baffle so that most of the lubricating oil remains in the oil storage cavity, and a small part of the lubricating oil flows back to the oil storage tank through the lower notch just below the outer wall of the annular oil baffle, further reducing the amount of lubricating oil in the oil storage tank stirred by the planet carrier when the coaxial planetary gear reducer is working, thereby reducing the oil stirring loss, and at the same time, reducing the resistance of the lubricating oil to which the various components of the coaxial planetary gear reducer are subjected during movement, thereby improving the working efficiency, and also reducing the friction between the various components of the coaxial planetary gear reducer and the lubricating oil, thereby reducing the heating of the coaxial planetary gear reducer.
Description
Technical Field
The invention relates to the technical field of reducers, in particular to a coaxial planetary gear reducer with shell cooling.
Background
Currently, the lubrication oil of the planetary gear reducer is stored under the housing, and when the planetary gear reducer is operated, the carrier of the planetary gear reducer rotates and agitates the lubrication oil under the housing, so that the lubrication oil splashes to lubricate the respective components within the housing.
The stirring loss of the planetary gear reducer is very serious due to the fact that the planet carrier stirs more lubricating oil, the working efficiency is low due to the fact that each part of the planetary gear reducer is subjected to resistance of the lubricating oil when moving, and the planetary gear reducer is severely heated due to the fact that each part of the planetary gear reducer rubs with the lubricating oil.
Disclosure of Invention
The invention provides a coaxial planetary gear reducer with shell cooling, which is used for reducing oil stirring loss, improving working efficiency and reducing heat. The specific technical scheme is as follows:
in a first aspect, the present invention provides a shell-cooled coaxial planetary gear reducer comprising a sun gear, a plurality of planet gears, a planet carrier, a gear ring, an annular oil baffle and a shell;
the shell comprises a first cavity and a second cavity which are communicated with each other and are connected with each other through a connecting wall, the diameter of the first cavity is larger than that of the second cavity, the sun gear, the planet carrier, the gear ring and the annular oil baffle are coaxial, the axis of each planet gear is parallel to the axis of the sun gear, and the sun gear, the plurality of planet gears, the planet carrier, the gear ring and the annular oil baffle are all arranged in the first cavity;
The power input shaft is connected with the sun gear, the sun gear is externally meshed with the plurality of planetary gears, the plurality of planetary gears are connected with the planet carrier in a transmission way, the planet carrier is connected with the power output shaft, the power output shaft is arranged in the second cavity, the plurality of planetary gears are internally meshed with the gear ring, the gear ring is fixedly arranged on the inner wall of the first cavity, and an oil storage groove for storing lubricating oil is arranged at the position, which is close to the planet carrier, below the inner wall of the first cavity;
The planet carrier is arranged in a sleeved mode through the annular oil baffle, the outer wall of the annular oil baffle is in clearance fit with the inner wall of the first cavity, the annular oil baffle is fixedly connected to the inner side of the connecting wall, an oil storage cavity is formed in a gap between the annular oil baffle and the connecting wall, an upper notch is formed above the outer wall of the annular oil baffle, a lower notch is formed right below the outer wall of the annular oil baffle, and the size of the upper notch is larger than that of the lower notch.
Optionally, a cooling oil duct is arranged on the outer side of the connecting wall.
Optionally, the coaxial planetary gear reducer with shell cooling further comprises a vent plug, wherein the first cavity is provided with a vent hole above the inner wall of the oil storage cavity, the vent hole is far away from the upper notch, and the vent plug is installed in the vent hole.
Optionally, the coaxial planetary gear reducer with shell cooling further comprises a tapered roller bearing, the power output shaft is installed in the second cavity through the tapered roller bearing, and an oil supply duct leading to the tapered roller bearing is arranged on the inner side of the connecting wall.
Optionally, the periphery of ring gear is provided with the arch, the inner wall of first cavity is provided with the draw-in groove, the ring gear passes through protruding card income the draw-in groove.
Optionally, the inboard of connecting wall is provided with a plurality of protruding first bolt holes around central circumference interval distribution, annular oil baffle is provided with a plurality of second bolt holes around central circumference interval distribution, first bolt hole with the second bolt hole passes through bolted connection.
Optionally, the planet carrier includes a plurality of installation axles, and the axis of every installation axle is parallel with the axis of sun gear, a plurality of planetary gears pass through the bearing and install in a plurality of installation axles respectively, wherein, the quantity of installation axle is the same with the quantity of planetary gear.
Optionally, the number of the planetary gears is three.
Optionally, the number of the upper notches is four, and the number of the lower notches is one.
Optionally, the planet carrier and the power output shaft are integrally formed.
As is clear from the foregoing, in this embodiment, by providing the annular oil baffle, the gap between the annular oil baffle and the connecting wall forms the oil storage cavity, by providing the annular oil baffle with the upper notch and the lower notch, most of the lubricating oil remains in the oil storage cavity, and a small part of the lubricating oil flows back to the oil storage groove through the lower notch directly below the outer wall of the annular oil baffle, and further, when the coaxial planetary gear reducer works, the amount of the lubricating oil in the oil storage groove stirred by the planet carrier is reduced, so that the stirring loss is reduced, meanwhile, the resistance of the lubricating oil to which each part of the coaxial planetary gear reducer is subjected when moving is reduced, the working efficiency is improved, and the friction between each part of the coaxial planetary gear reducer and the lubricating oil is also reduced, so that the heating of the coaxial planetary gear reducer is reduced. Of course, it is not necessary for any one product or method of practicing the invention to achieve all of the advantages set forth above at the same time.
The innovation points of the embodiment of the invention include:
1. Through setting up annular oil baffle for gap between annular oil baffle and the connecting wall forms the oil storage cavity, through set up the mode of breach and lower breach on annular oil baffle, make most lubricating oil leave in the oil storage cavity, the low breach flow back to the oil storage groove of little lubricating oil under the outer wall of annular oil baffle, further make the oil mass of lubricating oil in the oil storage groove that the planet carrier stirs when coaxial type planetary gear reducer works, consequently, the stirring loss has been reduced, simultaneously, the resistance of lubricating oil that each part that makes coaxial type planetary gear reducer received when the motion has been reduced, work efficiency has been improved, and also reduced the friction of each part and lubricating oil of coaxial type planetary gear reducer, coaxial type planetary gear reducer has reduced and has generated heat.
2. Because the gap between annular oil baffle and the connecting wall forms the oil storage cavity, the cooling oil duct sets up in the outside of connecting wall again, therefore, the cooling oil duct is close to the oil storage cavity. And because most of lubricating oil is left in the oil storage cavity when the coaxial planetary gear reducer works, and the lubricating oil in the oil storage cavity cannot splash everywhere, more lubricating oil in the oil storage cavity can be contacted by the cooling oil duct through the connecting wall, the heat exchange efficiency is improved, and the cooling effect is further improved.
3. When the coaxial planetary gear reducer works, the planet carrier rotates and stirs the lubricating oil in the oil storage groove, so that the flowing speed of the lubricating oil in the oil storage cavity is low, and the position of the vent hole is far away from the upper notch, so that the lubricating oil is not easy to leak from the vent plug, and the probability of oil leakage of the vent plug is reduced.
4. Because the inside of the connecting wall is provided with the oil supply duct leading to the tapered roller bearing, when the coaxial planetary gear reducer works, lubricating oil in the oil storage cavity can convey lubricating oil for the tapered roller bearing along the oil supply duct, so that the normal work of the tapered roller bearing is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the invention. Other figures may be derived from these figures without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic cross-sectional view of an angle of a case-cooled coaxial planetary gear reducer provided by an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a housing at an angle according to an embodiment of the present invention;
FIG. 3 is a schematic view of an angle of a housing according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an annular oil baffle provided in an embodiment of the present invention;
FIG. 5 is a schematic view of another angle of the housing according to an embodiment of the present invention;
Fig. 6 is a schematic structural diagram of a cooling oil duct according to an embodiment of the present invention.
In fig. 1 to 6, 1 sun gear, 2 planet gears, 3 planet carrier, 4 gear ring, 5 annular oil baffle, 51 second bolt hole, 52 upper notch, 53 lower notch, 6 casing, 61 connecting wall, 611 first bolt hole, 62 first chamber, 63 second chamber, 7 oil storage cavity, 8 cooling oil duct, 9 vent plug, 10 tapered roller bearing, 11 oil supply duct.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments of the present invention and the accompanying drawings are intended to cover non-exclusive inclusions. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a coaxial planetary gear reducer with shell cooling, which can reduce oil stirring loss, improve working efficiency and reduce heating. The following describes embodiments of the present invention in detail.
FIG. 1 is a schematic cross-sectional view of an angle of a case-cooled coaxial planetary gear reducer according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view of a housing according to an embodiment of the present invention.
Referring to fig. 1, the coaxial planetary gear reducer with shell cooling provided by the embodiment of the invention comprises a sun gear 1, a plurality of planetary gears 2, a planet carrier 3, a gear ring 4, an annular oil baffle 5 and a shell 6.
Referring to fig. 2, the housing 6 includes a first chamber 62 and a second chamber 63 which communicate with each other and are connected to each other by a connecting wall 61.
Since the sun gear 1, the plurality of planetary gears 2, the carrier 3, the ring gear 4, and the annular oil baffle 5 are all installed in the first chamber 62, the diameter of the first chamber 62 is large, and the diameter of the first chamber 62 is larger than the diameter of the second chamber 63.
With continued reference to fig. 1, sun gear 1, carrier 3, ring gear 4, and annular oil deflector 5 are coaxial, with the axis of each planet gear 2 being parallel to the axis of sun gear 1. The sun gear 1 is rigidly connected as a power input end to a power input shaft, i.e. the power input shaft is connected to the sun gear 1. The sun gear 1 is externally meshed with a plurality of planetary gears 2, the plurality of planetary gears 2 are in transmission connection with a planet carrier 3, the planet carrier 3 comprises a plurality of mounting shafts, the axis of each mounting shaft is parallel to the axis of the sun gear 1, the plurality of planetary gears 2 are respectively mounted on the plurality of mounting shafts through bearings, and the number of the mounting shafts is the same as that of the planetary gears 2.
The number of planetary gears 2 is three, for example.
With continued reference to fig. 1, the planet carrier 3 is rigidly connected as a power take-off to the power take-off shaft, i.e. the planet carrier 3 is connected to the power take-off shaft. For example, the carrier 3 may be integrally formed with the power take-off shaft.
With continued reference to fig. 1, the power take-off shaft is mounted in the second chamber 63, the plurality of planetary gears 2 are in internal engagement with the ring gear 4, the ring gear 4 is fixedly mounted on the inner wall of the first chamber 62, and illustratively, the outer periphery of the ring gear 4 is provided with a protrusion, the inner wall of the first chamber 62 is provided with a clamping groove, and the ring gear 4 is clamped into the clamping groove by the protrusion, whereby the ring gear 4 is fixed on the inner wall of the first chamber 62.
With continued reference to fig. 1, the annular oil baffle 5 is sleeved on the planet carrier 3, the outer wall of the annular oil baffle 5 is in clearance fit with the inner wall of the first chamber 62, and the annular oil baffle 5 is fixedly connected to the inner side of the connecting wall 61.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic structural view of an angle of a housing 6 according to an embodiment of the present invention, and fig. 4 is a schematic structural view of an annular oil baffle 5 according to an embodiment of the present invention. The inner side of the connecting wall 61 is provided with a plurality of raised first bolt holes 611 distributed at intervals around the center circumference, the annular oil baffle 5 is provided with a plurality of second bolt holes 51 distributed at intervals around the center circumference, and the first bolt holes 611 and the second bolt holes 51 are connected by bolts.
Thereby, the annular oil deflector 5 is fixedly connected to the inner side of the connection wall 61 by bolts.
With continued reference to fig. 2 and 4, the gap between the annular oil baffle 5 and the connecting wall 61 forms an oil storage cavity 7, an upper notch 52 is provided above the outer wall of the annular oil baffle 5, a lower notch 53 is provided right below the outer wall of the annular oil baffle 5, and the size of the upper notch 52 is larger than that of the lower notch 53.
Illustratively, the number of upper indentations 52 may be four and the number of lower indentations 53 may be one.
When the coaxial planetary gear reducer provided by the embodiment of the invention works, the power input shaft drives the sun gear 1 to rotate, and as the plurality of planetary gears 2 are in transmission connection with the planet carrier 3 and are respectively meshed with the sun gear 1 and the gear ring 4, the sun gear 1 drives the plurality of planetary gears 2 to revolve and rotate.
The plurality of planetary gears 2 drive the planetary carrier 3 to rotate, and as the oil storage groove for storing lubricating oil is arranged below the inner wall of the first chamber 62 and close to the planetary carrier 3, the planetary carrier 3 rotates to stir the lubricating oil in the oil storage groove, and the lubricating oil enters the oil storage cavity 7 through the upper notch 52 above the outer wall of the annular oil baffle plate 5.
Since the size of the upper notch 52 is larger than that of the lower notch 53, most of the lubricating oil remains in the oil reservoir cavity 7, and a small part of the lubricating oil flows back to the oil reservoir through the lower notch 53 directly under the outer wall of the annular oil deflector 5.
The rotation of the planet carrier 3 continues to stir the lubricating oil flowing back into the oil storage groove, the lubricating oil flowing back into the oil storage groove enters the oil storage cavity 7 through the upper notch 52 above the outer wall of the annular oil baffle plate 5, and the process of flowing back into the oil storage groove through the lower notch 53 is continuously repeated.
In the embodiment of the present invention, the setting housing 6 includes a first chamber 62 and a second chamber 63 which are communicated with each other and are connected to each other by a connecting wall 61, the diameter of the first chamber 62 is larger than that of the second chamber 63, and the sun gear 1, the plurality of planetary gears 2, the carrier 3, the ring gear 4 and the annular oil baffle 5 are all installed in the first chamber 62. By arranging the annular oil baffle 5, the gap between the annular oil baffle 5 and the connecting wall 61 forms an oil storage cavity 7, most of lubricating oil is left in the oil storage cavity 7 by arranging the upper notch 52 and the lower notch 53 on the annular oil baffle 5, and a small part of lubricating oil flows back to the oil storage groove through the lower notch 53 right below the outer wall of the annular oil baffle 5, so that the oil quantity of the lubricating oil in the oil storage groove stirred by the planet carrier 3 is reduced when the coaxial planetary gear reducer works, the stirring loss is reduced, meanwhile, the resistance of the lubricating oil suffered by all parts of the coaxial planetary gear reducer during movement is reduced, the working efficiency is improved, the friction between all the parts of the coaxial planetary gear reducer and the lubricating oil is also reduced, and the heating of the coaxial planetary gear reducer is reduced.
At present, lubricating oil of the existing planetary gear reducer is stored below a shell, a cooling oil duct of a cooling system is arranged at the bottom of the shell, when the planetary gear reducer works, a planet carrier of the planetary gear reducer rotates and agitates the lubricating oil below the shell, so that the lubricating oil splashes, and therefore, the residual lubricating oil below the shell is less, so that the cooling oil duct can contact less lubricating oil through the shell, the heat exchange efficiency is low, and the cooling effect is poor.
Referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of another angle of the housing 6 provided in the embodiment of the present invention, and fig. 6 is a schematic structural diagram of a cooling oil duct provided in the embodiment of the present invention, in order to avoid the occurrence of the poor cooling effect described above, a cooling oil duct 8 is provided on the outer side of the connecting wall 61 in the embodiment of the present invention, wherein, in fig. 6, the right arrow indicates that the lubricating oil in the first chamber 62 may enter the oil storage cavity 7 from above the annular oil baffle 5, and the left arrow indicates that the lubricating oil in the oil storage cavity 7 may flow back to the first chamber 62 from below the annular oil baffle 5.
Since the gap between the annular oil baffle 5 and the connecting wall 61 forms the oil storage cavity 7, the cooling oil passage 8 is disposed outside the connecting wall 61, and therefore, the cooling oil passage 8 is close to the oil storage cavity 7, and as can be seen from fig. 6, the connecting wall 61 is disposed between the cooling oil passage 8 and the oil storage cavity 7. And because most of lubricating oil is left in the oil storage cavity 7 when the coaxial planetary gear reducer works, and the lubricating oil in the oil storage cavity 7 can not splash everywhere, so that more lubricating oil in the oil storage cavity 7 can be contacted by the cooling oil duct 8 through the connecting wall 61, the heat exchange efficiency is improved, and the cooling effect is further improved.
When the existing planetary gear reducer works, the planet carrier rotates and agitates lubricating oil below the shell, so that the lubricating oil splashes, and the lubricating oil is caused to quickly flow to the position of the vent plug, so that the vent plug leaks oil, and the work of the planetary gear reducer is seriously influenced.
With continued reference to fig. 5, in order to avoid the oil leakage of the vent plug, the embodiment of the invention further provides a vent plug 9, and a vent hole is arranged above the inner wall of the first chamber 62, which is close to the oil storage cavity 7, and the vent hole is located away from the upper notch 52, and the vent plug 9 is installed on the vent hole.
When the coaxial planetary gear reducer works, the planet carrier 3 rotates and stirs the lubricating oil in the oil storage groove, so that the flowing speed of the lubricating oil in the oil storage cavity 7 is low, and the position of the vent hole is far away from the upper notch 52, so that the lubricating oil is not easy to leak from the vent plug 9, and the probability of oil leakage of the vent plug is reduced.
With continued reference to fig. 1 and 3, the coaxial planetary gear reducer provided by the embodiment of the present invention may further include a tapered roller bearing 10, the power output shaft is mounted in the second chamber 63 through the tapered roller bearing 10, and an oil supply passage 11 leading to the tapered roller bearing 10 is provided inside the connecting wall 61.
Since the inner side of the connecting wall 61 is provided with the oil supply duct 11 leading to the tapered roller bearing 10, when the coaxial planetary gear reducer works, the lubricating oil in the oil storage cavity 7 can convey the lubricating oil to the tapered roller bearing 10 along the oil supply duct 11, so that the normal work of the tapered roller bearing 10 is ensured.
Those of ordinary skill in the art will appreciate that the drawing is merely a schematic illustration of one embodiment and that modules or flow in the drawing are not necessarily required to practice the invention.
It will be appreciated by those of ordinary skill in the art that modules in an apparatus of an embodiment may be distributed in an apparatus of an embodiment as described in the embodiments, and that corresponding changes may be located in one or more apparatuses different from the embodiment. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present invention.
Claims (8)
1. The coaxial planetary gear reducer with the shell cooling function is characterized by comprising a sun gear, a plurality of planetary gears, a planet carrier, a gear ring, an annular oil baffle and a shell;
the shell comprises a first cavity and a second cavity which are communicated with each other and are connected with each other through a connecting wall, the diameter of the first cavity is larger than that of the second cavity, the sun gear, the planet carrier, the gear ring and the annular oil baffle are coaxial, the axis of each planet gear is parallel to the axis of the sun gear, and the sun gear, the plurality of planet gears, the planet carrier, the gear ring and the annular oil baffle are all arranged in the first cavity;
The power input shaft is connected with the sun gear, the sun gear is externally meshed with the plurality of planetary gears, the plurality of planetary gears are connected with the planet carrier in a transmission way, the planet carrier is connected with the power output shaft, the power output shaft is arranged in the second cavity, the plurality of planetary gears are internally meshed with the gear ring, the gear ring is fixedly arranged on the inner wall of the first cavity, and an oil storage groove for storing lubricating oil is arranged at the position, which is close to the planet carrier, below the inner wall of the first cavity;
The annular oil baffle plate is sleeved on the planet carrier, the outer wall of the annular oil baffle plate is in clearance fit with the inner wall of the first cavity, the annular oil baffle plate is fixedly connected to the inner side of the connecting wall, an oil storage cavity is formed by a gap between the annular oil baffle plate and the connecting wall, an upper notch is formed above the outer wall of the annular oil baffle plate, a lower notch is formed right below the outer wall of the annular oil baffle plate, and the size of the upper notch is larger than that of the lower notch;
a cooling oil duct is arranged on the outer side of the connecting wall;
The novel oil storage device is characterized by further comprising a vent plug, wherein the vent plug is arranged above the inner wall of the first cavity, which is close to the oil storage cavity, and the vent plug is arranged on the vent hole, and the position of the vent hole is far away from the upper notch.
2. The speed reducer of claim 1, further comprising a tapered roller bearing, wherein the power output shaft is mounted in the second chamber through the tapered roller bearing, and an oil supply passage that opens to the tapered roller bearing is provided on an inner side of the connecting wall.
3. The speed reducer of claim 1, wherein the outer periphery of the gear ring is provided with a protrusion, the inner wall of the first chamber is provided with a clamping groove, and the gear ring is clamped into the clamping groove through the protrusion.
4. The speed reducer of claim 1, wherein the inner side of the connecting wall is provided with a plurality of first bolt holes circumferentially spaced around the center, the annular oil baffle is provided with a plurality of second bolt holes circumferentially spaced around the center, and the first bolt holes and the second bolt holes are connected by bolts.
5. The speed reducer of claim 1, wherein the planet carrier comprises a plurality of mounting shafts, an axis of each mounting shaft being parallel to an axis of the sun gear, the plurality of planet gears being respectively mounted to the plurality of mounting shafts by bearings, wherein the number of mounting shafts is the same as the number of planet gears.
6. The decelerator of claim 1, wherein the number of the planetary gears is three.
7. The decelerator of claim 1, wherein the number of the upper notches is four, and the number of the lower notches is one.
8. The reducer of claim 1 wherein said planet carrier is integrally formed with said power take-off shaft.
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| DE112022006473T5 (en) * | 2022-01-21 | 2024-10-31 | Schaeffler Technologies AG & Co. KG | planetary gear reduction gear and vehicle drive device |
| CN119802204B (en) * | 2025-01-03 | 2025-11-28 | 深蓝汽车科技有限公司 | Speed reducer, driving system and vehicle |
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| CN210859771U (en) * | 2019-10-28 | 2020-06-26 | 常州易控汽车电子股份有限公司 | Coaxial planetary gear reducer with shell cooling function |
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| JP4527043B2 (en) * | 2005-10-25 | 2010-08-18 | 本田技研工業株式会社 | Lubricator for power transmission device |
| CN204186974U (en) * | 2014-10-23 | 2015-03-04 | 贵州群建精密机械有限公司 | A kind of lubrication of plane table thermoconductivity meter and sealing configuration |
| CN109356997B (en) * | 2018-11-08 | 2024-09-06 | 江苏汤臣汽车零部件有限公司 | Novel pure electric reduction gearbox |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210859771U (en) * | 2019-10-28 | 2020-06-26 | 常州易控汽车电子股份有限公司 | Coaxial planetary gear reducer with shell cooling function |
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| CN112728050A (en) | 2021-04-30 |
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