CN216382513U - Lubricating system of oil-free pump planetary gear mechanism - Google Patents
Lubricating system of oil-free pump planetary gear mechanism Download PDFInfo
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- CN216382513U CN216382513U CN202122668941.0U CN202122668941U CN216382513U CN 216382513 U CN216382513 U CN 216382513U CN 202122668941 U CN202122668941 U CN 202122668941U CN 216382513 U CN216382513 U CN 216382513U
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Abstract
The utility model relates to a lubricating system of a planetary gear mechanism without an oil pump, wherein a first oil guide rib is axially arranged outside a first oil guide cylinder, a second oil guide rib is axially arranged outside a second oil guide cylinder, a third oil guide rib is arranged above a shell on one side of the first oil guide cylinder, a fourth oil guide rib is arranged above the shell on one side of the second oil guide cylinder, the lower end of the third oil guide rib is positioned between the head and the tail ends of the first oil guide rib, and the lower end of the fourth oil guide rib is positioned between the head and the tail ends of the second oil guide rib; the first bearing, the first oil seal, the first shaft and the shell enclose a first oil cavity, the second bearing, the second oil seal, the second shaft and the shell enclose a second oil cavity, the first oil cavity is communicated with the oil reservoir, and the second oil cavity is communicated with the oil reservoir; an oil inlet of the oil reservoir is arranged at the upper part of the oil reservoir and communicated with the inner cavity of the shell; the lubricating system is not provided with an oil pump, so that the energy consumption is reduced; the oil storage device, the oil cavity, the oil passage and the oil guide rib are beneficial to the circulation and the heat dissipation of oil; lubricating oil does not pass through the axle center, so that the axial space is reduced, and the limitation of the internal spline and other parts is avoided.
Description
Technical Field
The utility model belongs to the field of lubricating systems of a planetary gear speed reducer and a few-gear planetary gear speed changer of a new energy automobile, and particularly relates to an oil-pump-free planetary gear mechanism lubricating system.
Background
The existing lubricating modes of the planetary gear transmission or the speed reducer of the automobile mainly comprise two modes: firstly, lubricating oil is pumped into a central oil duct of the transmission shaft through an oil pump, and oil is thrown to a part to be lubricated through an oil hole communicated with the central oil duct, secondly, an oil storage device is arranged at the upper part of the shell, the part of the splashed lubricating oil enters the oil storage device, then the lubricating oil flows into the central oil duct of the transmission shaft through the joint of the shell and the transmission shaft, and then the lubricating oil is thrown to the part to be lubricated through the oil hole communicated with the central oil duct. The two modes are that the joint of the shell and the transmission shaft is used as a lubricating oil passage, so that the oil hole and the axial seal occupy axial space and increase cost, and if the transmission shaft is an internal spline or other parts are arranged at the axis position, oil passing through the central oil passage of the transmission shaft is limited, and if an oil pump is used for pumping oil, the cost, the volume and the energy consumption are further increased.
Disclosure of Invention
The utility model aims to overcome the defects and provides an oil-pump-free planetary gear mechanism lubricating system for less planetary row reducers and speed changers.
The utility model solves the technical problem by adopting the scheme that an oil-pump-free planetary gear mechanism lubricating system comprises a shell, a first shaft and a second shaft which are arranged in the shell, wherein one of the first shaft and the second shaft is an input shaft, the other one of the first shaft and the second shaft is an output shaft, a first bearing is arranged between the left end of the first shaft and the shell, a first oil guide cylinder is arranged on the shell and on the periphery of the first bearing, the first oil guide cylinder is sleeved on the periphery of the first shaft, and the left side circumference of the first oil guide cylinder is in sealing connection with the shell; a second bearing is arranged between the right end of the second shaft and the shell, a second oil guide cylinder is arranged on the shell and positioned on the periphery of the second bearing, the second oil guide cylinder is sleeved on the periphery of the second shaft, and the right side circumference of the second oil guide cylinder is hermetically connected with the shell;
at least one first oil guide rib is axially arranged outside the first oil guide cylinder, at least one second oil guide rib is axially arranged outside the second oil guide cylinder, at least one third oil guide rib is arranged above the shell on one side of the first oil guide cylinder, at least one fourth oil guide rib is arranged above the shell on one side of the second oil guide cylinder, the lower end of the third oil guide rib is positioned between the head ends and the tail ends of the first oil guide ribs, and the lower end of the fourth oil guide rib is positioned between the head ends and the tail ends of the second oil guide ribs;
at least one oil reservoir is arranged on one side or two sides of the axis above the shell;
a first oil seal is arranged between the first shaft and the shell on the left side of the first bearing, a second oil seal is arranged between the second shaft and the shell on the right side of the second bearing, a first oil cavity is enclosed by the first bearing, the first oil seal, the first shaft and the shell, a second oil cavity is enclosed by the second bearing, the second oil seal, the second shaft and the shell, the first oil cavity is communicated with at least one oil reservoir through a first oil duct, and the second oil cavity is communicated with at least one oil reservoir through a second oil duct;
the oil inlet of the oil reservoir is arranged at the upper part of the oil reservoir and communicated with the inner cavity of the shell, lubricating oil splashed in the shell can enter the oil reservoir from the oil inlet, the oil outlet of the oil reservoir is arranged at the lower part of the oil reservoir, at least one oil outlet of the oil reservoir is communicated with the first oil channel, and at least one oil outlet of the oil reservoir is communicated with the second oil channel.
Furthermore, at least one axial oil guide groove is arranged above the shell, one end of each axial oil guide groove is communicated with an oil inlet of one of the oil reservoirs, and the other end of each axial oil guide groove is closed or communicated with other oil reservoirs.
Furthermore, the first oil guide cylinder and the second oil guide cylinder are cylindrical or conical, and the first oil guide cylinder, the second oil guide cylinder and the shell are integrally processed or separately processed.
Further, be provided with the planet row in the casing, the planet row comprises the planet carrier that contains the planet wheel, the ring gear, the sun gear, or comprises the planet carrier that contains the planet wheel, two sun gears, planet carrier and second shaft fixed connection or spline sliding connection, one of them sun gear passes through the internal spline and is connected with the primary shaft, another sun gear or ring gear pass through spline and casing sliding connection, the planet is arranged to rotate through the fifth bearing on the left side between left side component and baffle and planet row component and is connected, the planet is arranged to rotate through the sixth bearing on the right side between the component or sun gear and second shaft, the primary shaft right-hand member is established in the second shaft left end through the seventh bearing cover.
Furthermore, an annular oil receiving plate is arranged on the right side of the planet row, the periphery of the annular oil receiving plate is located on the outer side of wheel shafts of all the planet wheels and is in sealing connection with the planet carrier, the inner periphery of the annular oil receiving plate is sleeved outside the second oil guide cylinder, a gap is formed between the annular oil receiving plate and the second oil guide cylinder, and a second annular oil groove is formed between the annular oil receiving plate and the planet carrier.
Furthermore, a third oil duct is axially formed in the middle of a wheel shaft of the planet wheel, one end of the third oil duct is communicated with the second annular oil groove, the other end of the third oil duct is closed, a third oil hole is formed in the middle of the wheel shaft of the planet wheel, one end of the third oil hole is communicated with the third oil duct, the other end of the third oil hole is communicated with a third bearing, the planet wheel is connected with the wheel shaft through the third bearing, the wheel shaft is mounted on a planet carrier, and the planet wheel is rotatably connected with the planet carrier through a fourth bearing.
Furthermore, a baffle is arranged on the left side of the first shaft, the leftmost side of the planet row is rotatably connected with the baffle through a fifth bearing, a first annular oil groove is formed in the inner periphery of the baffle, the first annular oil groove is sleeved outside the first oil guide cylinder, a gap is formed between the first annular oil groove and the first oil guide cylinder, a fourth oil duct is formed in the baffle along the axial direction, at least one first oil hole is formed in the baffle, one end of the first oil hole is communicated with the fourth oil duct, and the other end of the first oil hole is communicated with the fifth bearing.
Further, the baffle plate and the first shaft can be integrally processed; or the baffle is welded, riveted or connected with the first shaft through a bolt after being separately processed and molded.
Furthermore, the second shaft is provided with at least one second oil hole on the left side of the seventh bearing.
Furthermore, the second oil hole is a horn hole, one end with a large caliber of the horn hole is arranged on the inner periphery of the second shaft, and one end with a small caliber of the horn hole is arranged on the outer periphery of the second shaft.
Compared with the prior art, the utility model has the following beneficial effects:
firstly, an oil pump is not arranged, so that the cost is reduced, the volume is reduced, the energy consumption is reduced, and the fault points are reduced;
secondly, an oil reservoir, an oil cavity, an oil duct and an oil guide rib are arranged on the shell, so that oil circulation and heat dissipation are facilitated;
and thirdly, lubricating oil does not pass through the axis, so that the axial space is reduced, and the limitation of the internal spline and other parts is avoided. Facilitating the structural layout.
Drawings
The utility model is further described with reference to the following figures.
Fig. 1 is a schematic structural diagram of the lubricating system.
Fig. 2 is a schematic structural diagram of the first oil guide cylinder.
Fig. 3 is a schematic structural diagram of the second oil guide cylinder.
In the figure: 1-a shell; 2-a second oil guide cylinder; 3-a second oil guiding rib; 4-a first oil guide cylinder; 5-a first oil guiding rib; 6-a third oil guiding rib; 7-a fourth oil guiding rib; 8-a first bearing; 9-a second bearing; 10-a first oil chamber; 11-a second oil chamber; 12-an oil reservoir; 13-oil reservoir oil outlet; 14-a first oil gallery; 15-a second oil passage; 16-annular oil receiving plate; 17-a wheel axle; 18-a third oil gallery; 19-a third oil hole; 20-a third bearing; 21-a fourth bearing; 22-a planet carrier; 23-a gear ring; 24-a sun gear; 25-a planet wheel; 26-a first shaft; 27-a second axis; 28-a fifth bearing; 29-a sixth bearing; 30-a seventh bearing; 31-a fourth oil passage; 32-first oil holes; 33-a second oil hole; 34-a second annular oil groove; 35-first annular oil groove.
Detailed Description
The technical solution 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.
As shown in fig. 1-3, an oil-pump-free planetary gear mechanism lubricating system comprises a housing 1, and a first shaft 26 and a second shaft 27 which are installed in the housing, wherein one of the first shaft and the second shaft is an input shaft, the other one is an output shaft, a first bearing 8 is arranged between the left end of the first shaft and the housing, a first oil guide cylinder 4 is arranged on the housing at the periphery of the first bearing, the first oil guide cylinder is sleeved at the periphery of the first shaft, and the left side circumference of the first oil guide cylinder is in sealing connection with the housing; a second bearing 9 is arranged between the right end of the second shaft and the shell, a second oil guide cylinder 2 is arranged on the shell and on the periphery of the second bearing, the second oil guide cylinder is sleeved on the periphery of the second shaft, and the right side circumference of the second oil guide cylinder is in sealing connection with the shell;
the oil guide structure comprises a first oil guide cylinder, at least one first oil guide rib 5, at least one second oil guide rib 3, at least one third oil guide rib 6, at least one fourth oil guide rib 7, at least one third oil guide rib, at least one fourth oil guide rib, at least one third oil guide rib, at least one fourth oil guide rib, at least one third oil guide rib, at least one fourth oil guide rib, at least one third oil guide rib, at least one fourth oil guide rib, at least one oil guide groove, at least one oil;
at least one oil reservoir 12 is arranged above the shell on one side or two sides of the axis, preferably, one oil reservoir is arranged above each of two sides of the axis, and the lower parts of the two oil reservoirs are communicated;
a first oil seal is arranged between the first shaft and the shell on the left side of the first bearing, a second oil seal is arranged between the second shaft and the shell on the right side of the second bearing, the first oil seal, the first shaft and the shell enclose a first oil cavity 10, the second bearing, the second oil seal, the second shaft and the shell enclose a second oil cavity 11, the first oil cavity is communicated with at least one oil reservoir through a first oil duct 14, and the second oil cavity is communicated with at least one oil reservoir through a second oil duct 15;
an oil inlet of the oil reservoir is arranged at the upper part of the oil reservoir and communicated with the inner cavity of the shell, lubricating oil splashed in the shell can enter the oil reservoir from the oil inlet, an oil outlet 13 of the oil reservoir is arranged at the lower part of the oil reservoir, at least one oil outlet of the oil reservoir is communicated with the first oil channel, and at least one oil outlet of the oil reservoir is communicated with the second oil channel.
In this embodiment, at least one axial oil guiding groove is disposed above the housing, and one end of each axial oil guiding groove is communicated with an oil inlet of one of the oil reservoirs, and the other end of each axial oil guiding groove is closed or communicated with the other oil reservoir, and the communication can be realized by machining a channel or externally connecting an oil pipe on the housing.
In this embodiment, the first oil guide cylinder and the second oil guide cylinder are cylindrical or conical, and the first oil guide cylinder and the second oil guide cylinder are integrally formed with the housing or are separately formed with the housing.
In this embodiment, a planet row is arranged in the housing, the planet row is composed of a planet carrier 22 containing planet wheels 25, a gear ring 23 and a sun gear 24, or composed of a planet carrier containing planet wheels and double sun gears, the planet carrier is fixedly connected with a second shaft or in spline sliding connection, one sun gear is connected with a first shaft through an internal spline, the other sun gear or the gear ring is connected with the housing through a spline, a member at the leftmost side of the planet row is rotatably connected with a baffle plate and a member at the planet row through a fifth bearing 28 at the left side, members at the planet row or members at the sun gear and the second shaft are rotatably connected through a sixth bearing 29 at the right side, and the right end of the first shaft is sleeved in the left end of the second shaft through a seventh bearing 30.
In this embodiment, an annular oil receiving plate 16 is disposed on the right side of the planet row, the outer periphery of the annular oil receiving plate is located outside the wheel shafts 17 of all the planet wheels, the outer periphery of the annular oil receiving plate is connected with the planet carrier in a sealing manner, the inner periphery of the annular oil receiving plate is sleeved outside the second oil guide cylinder, a gap is formed between the annular oil receiving plate and the second oil guide cylinder, and a second annular oil groove 34 is formed between the annular oil receiving plate and the planet carrier.
In this embodiment, a third oil duct 18 is axially formed in the middle of a wheel shaft of the planetary gear, one end of the third oil duct is communicated with the second annular oil groove, the other end of the third oil duct is closed, a third oil hole 19 is formed in the middle of the wheel shaft of the planetary gear, one end of the third oil hole is communicated with the third oil duct, the other end of the third oil hole is communicated with a third bearing 20, the planetary gear is connected with the wheel shaft through the third bearing, the wheel shaft is mounted on a planet carrier, and the planetary gear is rotatably connected with the planet carrier through a fourth bearing 21.
In this embodiment, a baffle is disposed on the left side of the first shaft, the leftmost side of the planetary gear set is rotatably connected to the baffle through a fifth bearing, a first annular oil groove 35 is formed in the inner periphery of the baffle, the first annular oil groove is sleeved outside the first oil guide cylinder, a gap is formed between the first annular oil groove and the first oil guide cylinder, a fourth oil passage 31 is formed in the baffle in the axial direction, at least one first oil hole 32 is formed in the baffle, one end of the first oil hole is communicated with the fourth oil passage, and the other end of the first oil hole is communicated with the fifth bearing.
In this embodiment, the baffle may be integrally formed with the first shaft; or the baffle is welded, riveted or connected with the first shaft through a bolt after being separately processed and molded.
In this embodiment, the second shaft is opened with at least one second oil hole 33 at the left side of the seventh bearing.
In this embodiment, the second oil hole is a bell-mouthed hole, and the second shaft inner periphery is established to bell-mouthed hole heavy-calibre one end, and the second shaft outer periphery is established to bell-mouthed hole small-calibre one end.
The working principle is as follows:
in the initial state, the planet row does not work, the lubricating oil does not splash, the lubricating oil is not in the oil reservoir, all the lubricating oil is positioned at the bottom of the inner cavity of the shell, the oil level is higher, the lower parts of all the bearings and at least one planet wheel are immersed under the oil level, and all the lubricated parts are fully lubricated when the planet row does not rotate for one circle after being started;
when the planet row works, the first shaft, the second shaft and most components of the planet row are in a rotating state, lubricating oil is stirred in the rotating process of the part to enable part of the lubricating oil to be in a splashing state, the splashed part of the lubricating oil enters the oil reservoir through an oil inlet of the oil reservoir, and part of the lubricating oil also flows into the oil reservoir from the shaft to the oil guide groove;
lubricating oil in the oil reservoir partially flows into the first oil chamber from the first oil passage, and partially flows into the second oil chamber from the second oil passage;
lubricating oil entering the first oil cavity flows into the fourth oil channel through the first bearing gap, the first oil guide cylinder and the first annular oil groove in sequence, and the baffle throws the lubricating oil in the fourth oil channel from the first oil hole to the fifth bearing along with the rotation of the first shaft so as to lubricate the fifth bearing;
the lubricating oil entering the second oil cavity flows into a third oil channel through a second bearing gap, a second oil guide cylinder and a second annular oil groove in sequence, the planetary wheel shaft throws the lubricating oil in the third oil channel from a third oil hole to a third bearing along with the rotation of the planet carrier for lubricating the third bearing, and then the lubricating oil is extruded to a fourth bearing from the third bearing gap for lubricating the fourth bearing; meanwhile, the lubricating oil entering the second oil cavity flows to a gap between the first shaft and the second shaft through a second bearing gap, a second oil guide cylinder and a second oil hole in sequence, the lubricating oil between the first shaft and the second shaft flows to a seventh bearing, and the lubricating oil partially throws to a sixth bearing through the first shaft for lubricating;
in the rotation process of the planet carrier, a part of the planet wheel gear at the lower part passes through the oil surface of the inner cavity of the shell, so that part of lubricating oil is adhered to the surface of the gear, and the planet wheel adhered with the lubricating oil is meshed with the sun wheel and the gear ring along with the rotation of the planet wheel, so that the sufficient lubrication in the transmission process of the gear is ensured;
when the planet row works, part of splashed lubricating oil falls on the shell between the two third oil guide ribs and flows downwards to the position between the two first oil guide ribs, then flows into the first annular oil groove along the first oil guide ribs and the outer wall of the first oil guide cylinder, flows into the fourth oil channel together with the lubricating oil flowing into the first annular oil groove from the oil reservoir, and finally reaches the fifth bearing for lubricating; part of splashed lubricating oil falls on the shell between the two second oil guide ribs and flows downwards to the position between the two second oil guide ribs, then flows into the second annular oil groove along the second oil guide ribs and the outer wall of the second oil guide cylinder, flows into the third oil duct together with the lubricating oil flowing into the second annular oil groove from the oil reservoir, and finally reaches the third bearing and the fourth bearing;
when the rotating speed of the planet row is low, less lubricating oil splashes, less lubricating oil enters the oil reservoir, the oil level is still kept high, the lower parts of all the bearings and at least one planet wheel are kept to pass through the oil level, the lubricated parts can still be fully lubricated, and at the moment, the rotating speed is low, and the oil stirring energy loss is small;
when the rotating speed is higher, more lubricating oil splashes, more lubricating oil enters the oil reservoir, the oil level descends at the moment, all or part of the bearings cannot pass through the oil level, and the lubricating oil flows to ensure that the bearings are lubricated; the oil level is low, the size of the oil stirring of the rotating part is small, and the energy loss of the oil stirring is small;
the higher the rotating speed is, the more the lubricating oil is required by the lubricating part, at the moment, the higher the oil level splashed into the oil reservoir is, and the more the lubricating oil reaches the lubricating part from the oil reservoir through each oil duct, oil cavity, oil guide cylinder and oil hole, so the lubricating requirement can be met.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an oilless planetary gear mechanism lubricating system, includes the casing, installs primary shaft, the secondary shaft in the casing, and one of primary shaft, secondary shaft is the input shaft, and another is the output shaft, its characterized in that: a first bearing is arranged between the left end of the first shaft and the shell, a first oil guide cylinder is arranged on the shell and on the periphery of the first bearing, the first oil guide cylinder is sleeved on the periphery of the first shaft, and the left side circumference of the first oil guide cylinder is in sealing connection with the shell; a second bearing is arranged between the right end of the second shaft and the shell, a second oil guide cylinder is arranged on the shell and positioned on the periphery of the second bearing, the second oil guide cylinder is sleeved on the periphery of the second shaft, and the right side circumference of the second oil guide cylinder is hermetically connected with the shell;
at least one first oil guide rib is axially arranged outside the first oil guide cylinder, at least one second oil guide rib is axially arranged outside the second oil guide cylinder, at least one third oil guide rib is arranged above the shell on one side of the first oil guide cylinder, at least one fourth oil guide rib is arranged above the shell on one side of the second oil guide cylinder, the lower end of the third oil guide rib is positioned between the head ends and the tail ends of the first oil guide ribs, and the lower end of the fourth oil guide rib is positioned between the head ends and the tail ends of the second oil guide ribs;
the shell is provided with an oil reservoir;
a first oil seal is arranged between the first shaft and the shell on the left side of the first bearing, a second oil seal is arranged between the second shaft and the shell on the right side of the second bearing, a first oil cavity is enclosed by the first bearing, the first oil seal, the first shaft and the shell, a second oil cavity is enclosed by the second bearing, the second oil seal, the second shaft and the shell, the first oil cavity is communicated with at least one oil reservoir through a first oil duct, and the second oil cavity is communicated with at least one oil reservoir through a second oil duct;
an oil inlet of the oil reservoir is communicated with an inner cavity of the shell, lubricating oil splashed in the shell can enter the oil reservoir from the oil inlet, at least one oil outlet of the oil reservoir is communicated with the first oil duct, and at least one oil outlet of the oil reservoir is communicated with the second oil duct.
2. The oilless planetary gear mechanism lubricating system according to claim 1, characterized in that: the first oil guide cylinder and the second oil guide cylinder are cylindrical or conical, and the first oil guide cylinder and the second oil guide cylinder are integrally or separately machined and formed with the shell.
3. The oilless planetary gear mechanism lubricating system according to claim 1, characterized in that: the utility model discloses a planet gear, including casing, planet row, internal spline, sun gear, second axle, be provided with the planet row in the casing, the planet row is by the planet carrier that contains the planet wheel, the ring gear, sun gear constitutes, or by the planet carrier that contains the planet wheel, two sun gears constitute, planet carrier and second axle fixed connection or spline sliding connection, one of them sun gear passes through internal spline and primary shaft connection, another sun gear or ring gear pass through spline and casing sliding connection, the planet is arranged to the leftmost side component and is connected through the fifth bearing rotation in the left side between the baffle and the planet row component, the planet is arranged to pass through the sixth bearing rotation on the right side between the component or sun gear and second axle, the first axle right-hand member is established in the second axle left end through seventh bearing cover.
4. The oilless planetary gear mechanism lubricating system according to claim 3, characterized in that: the right side of the planet row is provided with an annular oil receiving plate, the periphery of the annular oil receiving plate is positioned outside wheel shafts of all planet wheels, the periphery of the annular oil receiving plate is connected with the planet carrier in a sealing mode, the inner periphery of the annular oil receiving plate is sleeved outside the second oil guide cylinder, a gap is reserved between the annular oil receiving plate and the second oil guide cylinder, and a second annular oil groove is formed between the annular oil receiving plate and the planet carrier.
5. The oilless planetary gear mechanism lubricating system according to claim 3, characterized in that: the middle of the wheel shaft of the planet wheel is provided with a third oil duct along the axial direction, one end of the third oil duct is communicated with the second annular oil groove, the other end of the third oil duct is closed, the middle of the wheel shaft of the planet wheel is provided with a third oil hole, one end of the third oil hole is communicated with the third oil duct, the other end of the third oil hole is communicated with a third bearing, the planet wheel is connected with the wheel shaft through the third bearing, the wheel shaft is arranged on a planet carrier, and the planet wheel is rotatably connected with the planet carrier through a fourth bearing.
6. The oilless planetary gear mechanism lubricating system according to claim 3, characterized in that: the planet gear is characterized in that a baffle is arranged on the left side of the first shaft, the leftmost side of the planet gear is rotatably connected with the baffle through a fifth bearing, a first annular oil groove is formed in the inner periphery of the baffle, the first annular oil groove is sleeved outside the first oil guide cylinder, a gap is formed between the first annular oil groove and the first oil guide cylinder, a fourth oil duct is formed in the baffle along the axial direction, at least one first oil hole is formed in the baffle, one end of the first oil hole is communicated with the fourth oil duct, and the other end of the first oil hole is communicated with the fifth bearing.
7. The oilless planetary gear mechanism lubricating system according to claim 6, characterized in that: the baffle and the first shaft are integrally processed; or the baffle is welded, riveted or connected with the first shaft through a bolt after being separately processed and molded.
8. The oilless planetary gear mechanism lubricating system according to claim 3, characterized in that: and the second shaft is provided with at least one second oil hole on the left side of the seventh bearing, one end of the second oil hole is arranged on the inner periphery of the second shaft, and the other end of the second oil hole is arranged outside the second shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668941.0U CN216382513U (en) | 2021-11-03 | 2021-11-03 | Lubricating system of oil-free pump planetary gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668941.0U CN216382513U (en) | 2021-11-03 | 2021-11-03 | Lubricating system of oil-free pump planetary gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382513U true CN216382513U (en) | 2022-04-26 |
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ID=81250393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122668941.0U Active CN216382513U (en) | 2021-11-03 | 2021-11-03 | Lubricating system of oil-free pump planetary gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819230A (en) * | 2021-11-03 | 2021-12-21 | 福建中青传动科技有限公司 | Planetary gear mechanism lubricating structure of oilless pump |
-
2021
- 2021-11-03 CN CN202122668941.0U patent/CN216382513U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819230A (en) * | 2021-11-03 | 2021-12-21 | 福建中青传动科技有限公司 | Planetary gear mechanism lubricating structure of oilless pump |
| CN113819230B (en) * | 2021-11-03 | 2024-03-01 | 福建中青传动科技有限公司 | Planetary gear mechanism lubricating structure without oil pump |
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