CN210344174U - Automobile wheel reduction gear - Google Patents
Automobile wheel reduction gear Download PDFInfo
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- CN210344174U CN210344174U CN201921039049.2U CN201921039049U CN210344174U CN 210344174 U CN210344174 U CN 210344174U CN 201921039049 U CN201921039049 U CN 201921039049U CN 210344174 U CN210344174 U CN 210344174U
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- wheel
- planet
- oil duct
- hub reduction
- shaft
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Abstract
The utility model provides a car wheel reduction gears relates to car technical field. The automobile hub reduction device comprises a hub reduction shell, a hub reduction end, a main reducer and a sun wheel shaft, wherein the hub reduction shell is provided with a cavity, the hub reduction end is detachably arranged at one side part of the hub reduction shell, the cavity is arranged at the part, close to one side part of the hub reduction shell, of the hub reduction end, the main reducer is positioned in the cavity of the hub reduction shell, and one end part of the sun wheel shaft is connected with the output end of the main reducer; the main speed reducer comprises a planet wheel shaft and a planet wheel, one end of the planet wheel shaft is connected with the wheel reducer shell, and the planet wheel is connected with the planet wheel shaft; and the planet wheel shaft is provided with a radial oil duct and an axial oil duct, the radial oil duct is communicated with the axial oil duct, and the axial oil duct is communicated with the cavity at the wheel reduction cover end. The utility model discloses a wheel subtracts the lubricating system that axial oil duct and radial oil duct on end cover and the planet wheel axle constitute, makes the bearing can fully lubricate in limited space, has improved the bearing capacity of bearing.
Description
Technical Field
The utility model relates to the field of automotive technology, concretely relates to car wheel reduction gears.
Background
The wheel driving device is a driving device of an automobile and comprises a motor, a wheel reducer, a wheel hub, a brake and the like.
The wheel-side reducer is the last-stage speed-reducing and torque-increasing device in an automobile transmission system, can reduce the load of components such as a transmission, a transmission shaft, a main reducer, a differential mechanism, a half shaft and the like, has the advantages of reduced size, larger ground clearance of a drive axle and the like under the condition of the same total transmission ratio, and is widely applied to trucks, large buses, off-road vehicles and other large industrial and mining vehicles.
The existing hub reduction gear mainly adopts a straight tooth structure, a needle bearing, a split type inner gear ring and other structures, so that the bearing capacity is limited.
Disclosure of Invention
Technical problem to be solved
Not enough to prior art, the utility model provides a car wheel reduction gear has solved the technical problem that current car wheel reduction gear bearing capacity is low.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
an automotive wheel reduction unit, comprising:
a wheel subtracting housing having a cavity;
the wheel reducing cover end is detachably arranged at one side part of the wheel reducing shell, and a cavity is formed at one side part, close to the wheel reducing shell, of the wheel reducing cover end;
a main reducer located within a cavity of the wheel reducer housing;
one end of the sun wheel shaft is connected with the output end of the main speed reducer;
wherein the final drive includes:
one end part of the planet wheel shaft is connected with the wheel reducer shell;
the planet wheel is connected with the planet wheel shaft;
and the planet wheel shaft is provided with a radial oil duct and an axial oil duct, the radial oil duct is communicated with the axial oil duct, and the axial oil duct is communicated with the cavity of the wheel reduction cover end.
Preferably, the cavity of the wheel-reduced end is provided with an agitating part along the radial direction of the wheel-reduced end.
Preferably, the final drive further includes:
the planet carrier, the planet carrier is close to one side portion of wheel subtracts the shell has the arch, the arch with the wheel subtracts the shell and connects, the planet carrier still is provided with first shaft hole, first shaft hole with another tip plug-in connection of planet wheel axle.
Preferably, the final drive further includes:
and the tooth grooves of the inner gear ring are meshed with the tooth grooves of the planet gears.
Preferably, the inner gear ring is of a bowl-mounted integral structure, one end of the inner gear ring is an open end, and the other end of the inner gear ring is a semi-closed end.
Preferably, a plurality of oil holes are distributed on the semi-closed end of the inner gear ring along the circumferential direction.
Preferably, the semi-closed end of the inner gear ring is provided with a limiting baffle.
Preferably, one side part of the wheel reduction shell is provided with a second shaft hole, and the second shaft hole is connected with one end part of the planet wheel shaft in a plugging mode.
Preferably, the planet wheel shaft is provided with a limiting hole.
Preferably, the planet wheel is connected with the planet wheel shaft through a tapered roller bearing.
(III) advantageous effects
The utility model provides a car wheel limit decelerator. Compared with the prior art, the method has the following beneficial effects:
the invention can fully lubricate the bearing in a limited space through a lubricating system consisting of the reducer end cover and the axial oil duct and the radial oil duct on the planet wheel shaft, thereby improving the bearing capacity of the bearing.
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 obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an exploded view of the overall structure of an embodiment of the present invention;
FIG. 2 is a sectional view showing the overall structure of the embodiment of the present invention;
FIG. 3 is a cross-sectional view of a planet axle embodying the present invention;
FIG. 4 is a schematic illustration of a wheel de-shelling embodiment of the present invention;
FIG. 5 is a schematic view of an annular gear in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a routine spider in accordance with an embodiment of the present invention;
FIG. 7 is a cutaway end of a wheel of an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the application provides a car wheel reduction gear, has solved the current technical problem that car wheel reduction gear bearing capacity is low of current car, improves wheel reduction gear bearing capacity.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
the lubricating system consisting of the axial oil duct and the radial oil duct is arranged on the planet wheel shaft, so that the bearing can be sufficiently lubricated in a limited space, and the bearing capacity of the bearing is improved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 7, an embodiment of the invention provides an automobile wheel reduction device, which includes a wheel reduction housing 2, a wheel reduction cover end 1, a main reducer, and a sun gear shaft 5; the wheel subtracting shell 2 is provided with a cavity, the wheel subtracting cover end 1 is detachably mounted at one side of the wheel subtracting shell 2, the wheel subtracting cover end 1 is close to one side of the wheel subtracting shell 2 and is provided with the cavity, the main speed reducer is located in the cavity of the wheel subtracting shell 2, one end of the sun gear shaft 5 is connected with the output end of the main speed reducer, and one end of the sun gear shaft 5 is provided with a spline 501 which is matched with the spline to realize connection. Specifically, as shown in fig. 1 and 4, one end of the casing 2 is detachably connected with the cover 1 to form a closed end, and the main speed reducer is a cavity.
The main speed reducer comprises a planet wheel shaft 8 and a planet wheel 6, and one end of the planet wheel shaft 8 is connected with the reducer casing 2; the planet wheel 6 is connected with the planet wheel shaft 8; the planet wheel shaft 8 is provided with a radial oil passage 802 and an axial oil passage 801, the radial oil passage 802 is communicated with the axial oil passage 801, and the axial oil passage 801 is communicated with the cavity of the wheel reduction cover end 1. Specifically, the axial oil passage 801 is located inside the middle of the planet wheel shaft 8 along the axial direction of the planet wheel shaft 8, and one end part of the axial oil passage is communicated with the cavity of the wheel reduction end 1; the radial oil passage 802 extends from the outside to the inside of the planetary shaft 8 in the diameter direction and communicates with the axial oil passage 801.
According to the embodiment of the invention, the bearing can be fully lubricated in a limited space through the lubricating system consisting of the wheel reducer end cover and the axial oil duct and the radial oil duct on the planet wheel shaft, so that the bearing capacity of the bearing is improved.
In one embodiment, as shown in fig. 7, an agitating portion 101 is provided in the cavity of the wheel tip 1 along the radial direction of the wheel tip 1. In the specific implementation process, the cavity of the wheel reduction end 1 is filled with the lubricant, when the wheel reduction gear works, the wheel reduction end 1 rotates along with the gear and the shaft inside the wheel reduction gear, the stirring part 101 drives the lubricant to rotate at the moment to cause the lubricant to splash, and the splashed lubricant falls on gears at all levels, so that the effect of fully lubricating the gears at all levels is achieved, the abrasion of the gears is reduced, and the service life of the wheel reduction gear is prolonged.
In an embodiment, specifically, as shown in fig. 1, 2 and 6, the main reducer further includes a planet carrier 3, a protrusion 302 is provided at a side portion of the planet carrier 3 close to the wheel reduction housing 2, the protrusion 302 is connected to the wheel reduction housing 2, the planet carrier 3 is further provided with a first shaft hole 301, and the first shaft hole 301 is connected to the other end portion of the planet wheel shaft 8 in a plugging manner.
In one embodiment, the main reducer further comprises an inner gear ring 4, and tooth grooves of the inner gear ring 4 are meshed with tooth grooves of the planet wheels 6.
In one embodiment, the inner gear ring 4 is a bowl-mounted integral structure, one end of the inner gear ring 4 is an open end, and the other end is a semi-closed end. The integral inner gear ring 4 structure improves the rigidity of the gear ring, reduces the processing deformation, improves the gear meshing precision and reduces the transmission noise.
In one embodiment, a plurality of oil holes 401 are circumferentially distributed on the semi-closed end of the inner gear ring 4 for oil discharge and oil return.
In one embodiment, a limit baffle is arranged at the semi-closed end of the inner gear ring 4.
In one embodiment, one side of the wheel reduction shell has a second shaft hole 201, and the second shaft hole 201 is connected with one end of the planetary wheel shaft 8 in a plugging manner. The planet carrier 3 has four protrusions fitted to the wheel housing 2 and a plurality of holes for mounting the planet axle 8 and the dowel pin 602.
In one embodiment, the planetary shaft 8 has a limiting hole for installing the limiting ball 7.
In one embodiment, the planet wheel 6 and the planet wheel shaft 8 are connected through a tapered roller bearing 601.
In summary, compared with the prior art, the method has the following beneficial effects:
according to the embodiment of the invention, the bearing can be fully lubricated in a limited space through the lubricating system consisting of the wheel reducer end cover and the axial oil duct and the radial oil duct on the planet wheel shaft, so that the bearing capacity of the bearing is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An automobile wheel reduction device, characterized in that, the automobile wheel reduction device includes:
a wheel subtracting housing having a cavity;
the wheel reducing cover end is detachably arranged at one side part of the wheel reducing shell, and a cavity is formed at one side part, close to the wheel reducing shell, of the wheel reducing cover end;
a main reducer located within a cavity of the wheel reducer housing;
one end of the sun wheel shaft is connected with the output end of the main speed reducer;
wherein the final drive includes:
one end part of the planet wheel shaft is connected with the wheel reducer shell;
the planet wheel is connected with the planet wheel shaft;
and the planet wheel shaft is provided with a radial oil duct and an axial oil duct, the radial oil duct is communicated with the axial oil duct, and the axial oil duct is communicated with the cavity of the wheel reduction cover end.
2. The hub reduction unit for an automobile according to claim 1, wherein a stirring portion is provided in the cavity of the wheel-attaching end in a radial direction of the wheel-attaching end.
3. The wheel-side reduction apparatus for an automobile according to claim 1, wherein the final drive unit further comprises:
the planet carrier, the planet carrier is close to one side portion of wheel subtracts the shell has the arch, the arch with the wheel subtracts the shell and connects, the planet carrier still is provided with first shaft hole, first shaft hole with another tip plug-in connection of planet wheel axle.
4. The wheel-side reduction apparatus for an automobile according to claim 1, wherein the final drive unit further comprises:
and the tooth grooves of the inner gear ring are meshed with the tooth grooves of the planet gears.
5. The automobile hub reduction unit according to claim 4, wherein the inner gear ring is a bowl-mounted integral structure, and one end of the inner gear ring is an open end and the other end is a semi-closed end.
6. The automobile hub reduction gear according to claim 4, wherein the semi-closed end of the inner ring gear is circumferentially provided with a plurality of oil holes.
7. The automobile hub reduction gear according to claim 4, wherein the semi-closed end of the inner gear ring is provided with a limit baffle.
8. The automotive hub reduction gear according to claim 1, wherein a side portion of the hub reduction housing has a second shaft hole, and the second shaft hole is in plug-in connection with one end portion of the planetary wheel shaft.
9. The vehicle hub reduction gear according to claim 1, wherein the planetary wheel shaft has a limit hole.
10. The automotive hub reduction gear of claim 1, wherein the planet gears are connected to the planet gear shaft by tapered roller bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921039049.2U CN210344174U (en) | 2019-07-04 | 2019-07-04 | Automobile wheel reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921039049.2U CN210344174U (en) | 2019-07-04 | 2019-07-04 | Automobile wheel reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210344174U true CN210344174U (en) | 2020-04-17 |
Family
ID=70193326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921039049.2U Active CN210344174U (en) | 2019-07-04 | 2019-07-04 | Automobile wheel reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210344174U (en) |
-
2019
- 2019-07-04 CN CN201921039049.2U patent/CN210344174U/en active Active
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