CN221278420U - Planetary reduction mechanism, hub reduction gear electric wheel and automobile - Google Patents
Planetary reduction mechanism, hub reduction gear electric wheel and automobile Download PDFInfo
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- CN221278420U CN221278420U CN202322636097.2U CN202322636097U CN221278420U CN 221278420 U CN221278420 U CN 221278420U CN 202322636097 U CN202322636097 U CN 202322636097U CN 221278420 U CN221278420 U CN 221278420U
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- oil
- planet
- planet carrier
- pin shaft
- planetary
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- 239000003921 oil Substances 0.000 claims abstract description 139
- 239000010687 lubricating oil Substances 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 description 14
- 238000001816 cooling Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model discloses a planetary reduction mechanism, an electric wheel of a hub reduction and an automobile, wherein the planetary reduction mechanism comprises an outer shell, a gear ring, a plurality of planet wheels, a planet carrier and an oil guide disc, wherein an installation space is formed in the outer shell, lubricating oil is arranged in at least part of the installation space, the gear ring is arranged in the installation space and fixedly connected with the outer shell, the planet wheels are meshed with the gear ring, a planet pin shaft is arranged on the planet carrier, the planet wheels are rotatably arranged on the planet pin shaft and can drive the planet carrier to rotate around the axis of the planet pin shaft, bearings are arranged between the planet wheels and the planet pin shaft, an oil guide channel, an oil inlet and an oil outlet which are communicated with the oil guide channel are formed in the planet pin shaft, the oil outlet is arranged corresponding to the bearings, the oil guide disc is correspondingly arranged on the planet carrier, and is at least partially positioned in the lubricating oil guide disc and can rotate along with the planet carrier to guide the lubricating oil to the oil inlet so as to lubricate the lubricating oil from the oil outlet after flowing through the oil guide channel.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a planetary reduction mechanism, a hub reduction gear electric wheel and an automobile.
Background
The inside of the electric wheel of the hub speed reducer comprises a large number of transmission parts such as a motor, a brake, a speed reducing mechanism and the like, but in practical design, the whole electric wheel of the hub speed reducer occupies smaller whole vehicle space, so that the heat dissipation requirement for the speed reducing mechanism is higher.
At present, in the existing speed reducing mechanism applied to the electric wheel of the hub speed reducer, an additional cooling mechanism is often required to be additionally arranged to meet the heat dissipation requirement of the speed reducing mechanism, so that the additional vehicle using space is occupied, and the assembly of other parts of the automobile is affected.
Disclosure of utility model
The utility model mainly aims to provide a planetary speed reducing mechanism, a hub speed reducer electric wheel and an automobile, and aims to provide a speed reducing mechanism which is applied to the hub speed reducer electric wheel and meets the lubricating and heat dissipation requirements while occupying a small space.
To achieve the above object, the present utility model provides a planetary reduction mechanism, wherein the planetary reduction mechanism includes:
An outer shell, wherein an installation space is formed in the outer shell, and lubricating oil is arranged in at least part of the installation space;
The gear ring is arranged in the installation space and is fixedly connected with the outer shell;
the planetary gears are meshed with the gear ring;
The planet carrier is provided with a planet pin shaft, a plurality of planet gears are respectively rotatably arranged on the planet pin shaft and can also drive the planet carrier to rotate around the axis of the planet pin shaft, bearings are arranged between the planet gears and the planet pin shaft, an oil guide channel, an oil inlet and an oil outlet which are communicated with the oil guide channel are formed in the planet pin shaft, and the oil outlet is arranged corresponding to the bearings; and
The oil guide disc is arranged on the planet carrier corresponding to the oil inlet, and is at least partially in lubricating oil, and can rotate along with the planet carrier to guide the lubricating oil to the oil inlet so as to lubricate the bearing by flowing out of the oil outlet after flowing through the oil guide channel.
Optionally, the planetary gear further comprises a sun gear, and the sun gear is meshed with a plurality of planetary gears and used for driving the planetary gears to rotate around the axis of the planetary carrier.
Optionally, the oil guiding disc includes a main body portion and an oil blocking portion extending from a periphery of the main body portion toward a middle portion of the main body portion in a bending manner, so that an oil storage space is formed between the main body portion and the oil blocking portion, and at least a part of the oil storage space is in the lubricating oil.
Optionally, the oil guide disc is close to one side of planet carrier is provided with the elasticity buckle, be provided with the mounting hole on the planet carrier correspondingly, the elasticity buckle with the mounting hole joint cooperation.
Optionally, the oil guide disc further includes a connection portion protruding from the main body portion toward a side close to the planet carrier, a through hole penetrating through the connection portion and the main body portion is provided at an end portion of the connection portion, and the connection portion is disposed at the oil inlet to communicate the through hole with the oil inlet.
Optionally, a sealing ring is disposed on the peripheral side of the connecting portion.
Optionally, the oil guide channel includes a first channel extending along the axial direction of the planetary pin shaft and a plurality of second channels extending along the radial direction of the planetary pin shaft, one end of the first channel is set as the oil inlet, the other end is respectively communicated with one ends of the second channels, and the other ends of the second channels are set as the oil outlets.
Optionally, the gear ring outside is connected with the shell body through the spline, and the gear ring is provided with the floating amount with the shell body.
The utility model also provides a hub reducer electric wheel, which comprises the planetary reduction mechanism, wherein the planetary reduction mechanism comprises:
An outer shell, wherein an installation space is formed in the outer shell, and lubricating oil is arranged in at least part of the installation space;
The gear ring is arranged in the installation space and is fixedly connected with the outer shell;
the planetary gears are meshed with the gear ring;
The planet carrier is provided with a planet pin shaft, a plurality of planet gears are respectively rotatably arranged on the planet pin shaft and can also drive the planet carrier to rotate around the axis of the planet pin shaft, bearings are arranged between the planet gears and the planet pin shaft, an oil guide channel, an oil inlet and an oil outlet which are communicated with the oil guide channel are formed in the planet pin shaft, and the oil outlet is arranged corresponding to the bearings; and
The oil guide disc is arranged on the planet carrier corresponding to the oil inlet, and is at least partially in lubricating oil, and can rotate along with the planet carrier to guide the lubricating oil to the oil inlet so as to lubricate the bearing by flowing out of the oil outlet after flowing through the oil guide channel.
In addition, the utility model also provides an automobile, which comprises the hub speed reducer electric wheel.
According to the technical scheme, when the planetary reduction mechanism operates, the input shaft of the input motor drives the planet gears to revolve around the axis of the planet carrier while rotating around the planet pin shaft, so that the planet carrier is driven to rotate, and the oil guide disc is driven to rotate.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an internal structure of an embodiment of a planetary reduction mechanism according to the present utility model;
FIG. 2 is a schematic perspective view of the planetary reduction mechanism of FIG. 1;
FIG. 3 is a schematic perspective view of the planetary reduction mechanism of FIG. 1 (with the oil pan removed);
fig. 4 is a schematic perspective view of the oil guide plate of fig. 1.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Planetary reduction mechanism | 3112 | Second channel |
| 1 | Gear ring | 4 | Oil guide disc |
| 2 | Planet wheel | 41 | Main body part |
| 3 | Planet carrier | 42 | Oil baffle part |
| 31 | Planetary pin shaft | 43 | Elastic buckle |
| 311 | Oil guide channel | 44 | Connecting part |
| a | Oil inlet | 441 | Through hole |
| b | Oil outlet | 5 | Bearing |
| 3111 | A first channel | 6 | Sun gear |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The inside of the electric wheel of the hub speed reducer comprises a large number of transmission parts such as a motor, a brake, a speed reducing mechanism and the like, but in practical design, the whole electric wheel of the hub speed reducer occupies smaller whole vehicle space, so that the heat dissipation requirement for the speed reducing mechanism is higher.
At present, in the existing speed reducing mechanism applied to the electric wheel of the hub speed reducer, an additional cooling mechanism is often required to be additionally arranged to meet the heat dissipation requirement of the speed reducing mechanism, so that the additional vehicle using space is occupied, and the assembly of other parts of the automobile is affected.
In order to solve the above-mentioned problems, the present utility model provides a planetary reduction mechanism, and fig. 1 to 4 are specific embodiments of the planetary reduction mechanism provided by the present utility model.
Referring to fig. 1-2, the planetary reduction mechanism 100 includes an outer housing, a ring gear 1, a plurality of planetary gears 2, a planet carrier 3 and an oil guiding disc 4, wherein an installation space is formed in the outer housing, at least part of the installation space is provided with lubricating oil, the ring gear 1 is disposed in the installation space and fixedly connected with the outer housing, the plurality of planetary gears 2 are meshed with the ring gear 1, a planetary pin 31 is disposed on the planet carrier 3, the plurality of planetary gears 2 are respectively rotatably mounted on the planetary pin 31 and can drive the planet carrier 3 to rotate around an axis thereof, bearings 5 are disposed between the planetary gears 2 and the planetary pin 31, an oil guiding channel 311 and an oil inlet a and an oil outlet b communicated with the oil guiding channel 311 are formed in the planetary pin 31, the oil outlet b is disposed corresponding to the bearings 5, the oil guiding disc 4 is mounted on the planet carrier 3 corresponding to the oil inlet a, and the oil guiding disc 4 is at least partially disposed in the lubricating oil, and the oil guiding disc 4 can rotate along with the planet carrier 3 to guide lubricating oil flowing out from the oil inlet b to the bearings 311.
According to the technical scheme provided by the utility model, when the planetary reduction mechanism 100 operates, the input shaft of the input motor drives the planet wheel 2 to revolve around the axis of the planet carrier 3 while automatically conveying around the planet pin shaft 31, and then the planet carrier 3 is driven to rotate so as to drive the oil guide disc 4 to rotate, because the oil guide disc 4 is at least partially positioned in lubricating oil, when the oil guide disc 4 rotates, under the action of centrifugal force, the lubricating oil near the oil guide disc 4 can be guided to an oil inlet a on the planet pin shaft 31, the lubricating oil can flow along the oil guide channel 311 after entering the oil inlet a, and then flows out from the oil outlet b, and because the oil outlet b is arranged corresponding to the bearing 5, the lubricating oil can directly lubricate the bearing 5, by directly conveying the lubricating oil to the bearing 5 through the planetary mechanism, not only can effectively directly lubricate the bearing 5, but also can realize uninterrupted circulation of the lubricating oil near the oil guide disc 4, and can realize the cooling effect of the bearing 5, and the cooling mechanism is not required by the cooling of the cooling mechanism, and the cooling device is not required.
It should be noted that, in order to effectively share the input load, the number of the planetary gears 2 is at least three, for example, in this embodiment, the number of the planetary gears 2 is 3, and the number of the planetary pins 31 corresponds to the number of the planetary pins. In addition, the bearing 5 is a needle bearing, and the radial structure of the needle bearing is compact, which is beneficial to the miniaturization of the planetary reduction mechanism 100.
It may be appreciated that the planetary reduction mechanism 100 further includes a sun gear 6, where the sun gear 6 is meshed with a plurality of the planetary gears 2, so that a plurality of the planetary gears 2 are meshed with the sun gear 6 and the ring gear 1 respectively, so that the planetary gears 2 can rotate around the planetary pins 31 to drive the planet carrier 3 to revolve around the sun gear 6, where the sun gear 6 is connected with an input shaft through a spline, and the planet carrier 3 is connected with an output shaft through a spline, so as to achieve a reduction effect.
Specifically, referring to fig. 4, in order to enable the oil guiding disc 4 to guide the lubricating oil to the oil inlet a, in this embodiment, the oil guiding disc 4 includes a main body 41 and an oil baffle portion 42 extending from a periphery of the main body 41 toward a middle portion of the main body 41 in a bending manner, so that an oil storage space is formed between the main body 41 and the oil baffle portion 42, at least a portion of the oil storage space is in the lubricating oil, so that when the oil guiding disc 4 rotates along with the planet carrier 3, the lubricating oil located in the oil storage space can be thrown into the oil inlet a through the oil guiding disc 4 by a centrifugal force, and then flows out of the oil outlet b after flowing through the oil guiding channel 311 to lubricate and cool the bearing 5.
It should be understood that, in the present utility model, the specific connection manner between the oil guide disc 4 and the planet carrier 3 is not limited, for example, in this embodiment, an elastic buckle 43 is provided on a side of the oil guide disc 4 near the planet carrier 3, a mounting hole is correspondingly provided on the planet carrier 3, the elastic buckle 43 is engaged with the mounting hole in a clamping manner, or may be connected by a screw, for example, a screw is provided on a side of the oil guide disc 4 near the planet carrier 3, a screw hole is provided on the planet carrier 3, and the screw is rotatably mounted on the screw hole to realize detachable connection.
It is to be understood that the elastic buckle 43 and the screw may be plural, and the intervals are set in the circumferential direction of the side of the oil guiding disc 4 near the planet carrier 3, and the intervals are the same, so that the connection between the oil guiding disc 4 and the planet carrier 3 is more stable, and the rotation of the oil guiding disc 4 is not affected.
Specifically, in order to guide the lubricating oil in the oil storage space to the oil inlet a, in this embodiment, the oil guiding disc 4 further includes a connection portion 44 protruding from the main body portion 41 toward a side close to the planet carrier 3, a through hole 441 penetrating through the connection portion 44 and the main body portion 41 is provided at an end portion of the connection portion 44, and the connection portion 44 is provided at the oil inlet a so as to communicate the through hole 441 with the oil inlet a, so that the lubricating oil in the oil storage space can flow into the oil inlet a through the through hole 441 under the action of centrifugal force when the oil guiding disc 4 rotates, the through hole 441 can guide the lubricating oil, and the protruding connection portion 44 can stably extend into the oil inlet a to increase a contact area and avoid oil leakage.
It is understood that the number of the connection portions 44 may be plural, corresponding to the number of the planetary shafts.
Further, in order to improve the tightness of the connection between the connection portion 44 and the oil inlet a, in this embodiment, a sealing ring is disposed on the circumferential side of the connection portion 44, so that lubrication oil leakage guided to the oil inlet a can be further avoided by the sealing ring, and further lubrication efficiency of the planetary reduction mechanism 100 is improved.
It will be appreciated that, in order to shorten the length of the oil guide channel 311 to improve the overall oil guide and lubrication efficiency of the planetary reduction mechanism 100, in this embodiment, the oil guide channel 311 includes a first channel 3111 extending along the axial direction of the planetary pin 31 and a plurality of second channels 3112 extending along the radial direction of the planetary pin 31, one end of the first channel 3111 is set as the oil inlet a, the other ends are respectively communicated with one ends of the plurality of second channels 3112, the other ends of the plurality of second channels 3112 are set as the oil outlets b, and the arrangement is also convenient for opening the first channels 3111 and the second channels 3112.
Specifically, in order to facilitate the assembly of the planetary reduction mechanism 100 and avoid the situation that the planetary reduction mechanism 100 is locked during operation, in this embodiment, the outer side of the ring gear 1 is connected to the outer casing through a spline, and the ring gear 1 and the outer casing are provided with a floating amount, for example, when the spline on the outer side of the ring gear 1 is connected to the outer casing, a certain gap is provided, and the generated floating amount, it should be noted that the provided floating amount may be calculated according to the size of each part.
In addition, the utility model provides a hub reducer electric wheel, which comprises a planetary reduction mechanism 100, and comprises an outer shell, a gear ring 1, a plurality of planet gears 2, a planet carrier 3 and an oil guide disc 4, wherein an installation space is formed in the outer shell, lubricating oil is arranged in at least part of the installation space, the gear ring 1 is arranged in the installation space and fixedly connected with the outer shell, the planet gears 2 are meshed with the gear ring 1, the planet carrier 3 is provided with planet pins 31, the planet gears 2 are respectively rotatably arranged on the planet pins 31 and can drive the planet carrier 3 to rotate around the axes of the planet pins, bearings 5 are arranged between the planet gears 2 and the planet pins 31, an oil guide channel 311 and oil inlets a and oil outlets b communicated with the oil guide channel 311 are formed in the planet pins 31, the oil outlets b are arranged corresponding to the bearings 5, the oil guide disc 4 is arranged on the planet carrier 3 and at least partially arranged in the planet carrier 4, and the planet pins can guide the lubricating oil to flow out of the bearings 311 from the oil guide disc 4 to the oil guide disc 5. Because the electric wheel of the hub reducer includes all the technical solutions of all the embodiments of the planetary reduction mechanism 100, at least the technical solutions of the embodiments have all the beneficial effects, and are not described in detail herein.
In addition, the utility model also provides an automobile, which comprises the hub speed reducer electric wheel, and because the automobile comprises all the technical schemes of all the embodiments of the hub speed reducer electric wheel, the automobile at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. A planetary reduction mechanism, characterized by comprising:
An outer shell, wherein an installation space is formed in the outer shell, and lubricating oil is arranged in at least part of the installation space;
The gear ring is arranged in the installation space and is fixedly connected with the outer shell;
the planetary gears are meshed with the gear ring;
The planet carrier is provided with a planet pin shaft, a plurality of planet gears are respectively rotatably arranged on the planet pin shaft and can also drive the planet carrier to rotate around the axis of the planet pin shaft, bearings are arranged between the planet gears and the planet pin shaft, an oil guide channel, an oil inlet and an oil outlet which are communicated with the oil guide channel are formed in the planet pin shaft, and the oil outlet is arranged corresponding to the bearings;
The oil guide disc is arranged on the planet carrier corresponding to the oil inlet and is at least partially positioned in lubricating oil, and can rotate along with the planet carrier to guide the lubricating oil to the oil inlet so as to lubricate the bearing by flowing out of the oil outlet after flowing through the oil guide channel;
The oil guide disc comprises a main body part and an oil baffle part which is bent and extended from the periphery of the main body part towards the middle part of the main body part, so that an oil storage space is formed between the main body part and the oil baffle part, and at least part of the oil storage space is positioned in lubricating oil;
The oil guide disc further comprises a connecting part protruding from the main body part to the side close to the planet carrier, a through hole penetrating through the connecting part and the main body part is formed in the end part of the connecting part, and the connecting part is arranged at the oil inlet so as to be communicated with the through hole and the oil inlet;
the periphery of the connecting part is provided with a sealing ring, and
The gear ring outside through the spline with the shell body is connected, just the gear ring with the shell body is provided with the floating volume.
2. The planetary reduction mechanism of claim 1, further comprising a sun gear disposed in meshing engagement with a plurality of the planet gears for driving the planet gears in rotation about the axis of the planet carrier.
3. The planetary reduction mechanism as claimed in claim 1, wherein an elastic buckle is arranged on one side of the oil guide disc, which is close to the planet carrier, and a mounting hole is correspondingly arranged on the planet carrier, and the elastic buckle is in clamping fit with the mounting hole.
4. The planetary reduction mechanism according to claim 1, wherein the oil guide passage includes a first passage extending in an axial direction of the planetary pin shaft and a plurality of second passages extending in a radial direction of the planetary pin shaft, one end of the first passage is provided as the oil inlet, the other ends thereof are respectively communicated with one ends of the plurality of second passages, and the other ends of the plurality of second passages are provided as the oil outlets.
5. A hub reduction gearbox electric wheel comprising a planetary reduction mechanism according to any one of claims 1 to 4.
6. An automobile comprising the hub reduction gear electric wheel of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636097.2U CN221278420U (en) | 2023-09-26 | 2023-09-26 | Planetary reduction mechanism, hub reduction gear electric wheel and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636097.2U CN221278420U (en) | 2023-09-26 | 2023-09-26 | Planetary reduction mechanism, hub reduction gear electric wheel and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221278420U true CN221278420U (en) | 2024-07-05 |
Family
ID=91705151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322636097.2U Active CN221278420U (en) | 2023-09-26 | 2023-09-26 | Planetary reduction mechanism, hub reduction gear electric wheel and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221278420U (en) |
-
2023
- 2023-09-26 CN CN202322636097.2U patent/CN221278420U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |