CN215257638U - Integrated hub reduction gear - Google Patents
Integrated hub reduction gear Download PDFInfo
- Publication number
- CN215257638U CN215257638U CN202121304493.XU CN202121304493U CN215257638U CN 215257638 U CN215257638 U CN 215257638U CN 202121304493 U CN202121304493 U CN 202121304493U CN 215257638 U CN215257638 U CN 215257638U
- Authority
- CN
- China
- Prior art keywords
- gear
- planet
- shaft
- bearing
- reduction unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model provides an integrated form wheel reduction gear relates to reduction gear technical field. The utility model discloses an integrated form wheel reduction unit includes the action wheel assembly, from the driving wheel assembly, the sun gear, the planet carrier assembly, the gear carrier, the reduction gear case lid, the ring gear, and the knuckle, it adds planet row integrated configuration through the parallel shaft, arrange one set of coaxial planetary gear mechanism promptly after the parallel shaft type gear reduction of one-level, can reduce reduction gear input and output centre-to-centre spacing by a wide margin, the reduction gear volume has been reduced, the axle is saved and the space is arranged, make reduction gear internally arranged space compact, thereby the holistic weight of driving system has been reduced, the reduction ratio has still been improved simultaneously, the moment of torsion is improved, driving system's reliability and comprehensive properties have been strengthened.
Description
Technical Field
The utility model relates to a reduction gear technical field, concretely relates to integrated form wheel reduction gear.
Background
The reduction gear serves to match the rotational speed and the torque transmission between the prime mover and the working machine or the actuator, and is used in modern machines in a very wide range of applications.
At present, a speed reducer applied to a new energy commercial vehicle is mainly a parallel shaft type secondary speed reducer, namely, power of a motor is output and then is output from an output end after being subjected to speed reduction and torque increase through two pairs of parallel meshing gears.
However, the existing parallel shaft type speed reducer has the problems of large volume, low speed ratio, heavy system weight and the like, which greatly limits the design rationality and performance of the new energy commercial vehicle. Therefore, it is desirable to design a new type of speed reducer for new energy commercial vehicles, which has a small size, a light weight and a good performance, so as to avoid at least one or more of the above-mentioned drawbacks of the existing speed reducer.
Disclosure of Invention
Technical problem to be solved
The not enough to prior art, the utility model provides an integrated form wheel reduction gear has solved current parallel shaft type reduction gear and has had problem bulky, that system weight is big and the velocity ratio is low.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides an integrated form wheel reduction, it includes:
the driving wheel assembly comprises a driving wheel, a driving wheel bearing connected to a driving shaft of the driving wheel and a bearing baffle;
the driven wheel assembly comprises a driven wheel and a driven wheel bearing;
the planet carrier assembly comprises a planet carrier, a planet gear shaft, a planet gear bearing, a planet carrier bearing, a limiting steel ball and a planet shaft baffle, wherein the planet carrier bearing is limited and installed on the planet carrier through a bearing pressing plate and a bolt; and
the sun wheel, the gear carrier, the reducer box cover, the inner gear ring and the steering knuckle;
the driving wheel and the driven wheel are supported and mounted on the speed reducer box cover and the gear carrier through bearings, the driving wheel is meshed with the driven wheel through parallel gears, the driven wheel and a driven wheel shaft are designed in an integrated mode, an external spline is arranged on the driven wheel shaft and is in clearance fit with a sun gear with an internal spline, the sun gear is meshed with the planetary gear, the inner gear ring is fixed on a steering knuckle, and the inner gear ring is meshed with the planetary gear through matching of a box closing surface of the steering knuckle and a box closing surface of the speed reducer box cover; the bearing baffle is fixed on the gear rack through an inner hexagon bolt; the planet gear shaft and the planet carrier are limited by the limiting steel ball.
Preferably, the driving wheel is connected with an inner spline of the motor shaft through an outer spline; the planet carrier is connected with the external spline on the half shaft through the internal spline.
Preferably, the bearing baffle is fixed to the carrier by a hexagon socket head cap screw.
Preferably, the planet gear shaft is provided with an oil passage for lubricating the planet gear bearing.
Preferably, the planet gear shaft and the planet carrier are limited by a limiting steel ball.
Preferably, the bearing mounting hole on the reducer case cover is provided with an oil inlet groove and an oil outlet groove so as to ensure that the bearing can be fully lubricated.
Preferably, a plurality of reinforcing ribs are arranged outside the speed reducer case cover.
Preferably, a plurality of diversion ribs for realizing the diversion effect of the gear oil are arranged in the reducer case cover.
Preferably, the joint surface of the reducer case cover and the steering knuckle is sealed in a glue coating and/or oil sealing mode.
Preferably, a liquid storage tank interface is arranged on the speed reducer tank cover and connected with the liquid storage tank for ventilation.
(III) advantageous effects
The utility model provides an integrated form wheel reduction gear. Compared with the prior art, the method has the following beneficial effects:
the utility model discloses a planetary wheel reduction gear adds planet row integrated configuration through the parallel shaft, arranges one set of coaxial planetary gear mechanism promptly after the parallel shaft type gear reduction of one-level, can reduce reduction gear input/output centre-to-centre spacing by a wide margin, has reduced the reduction gear volume, has saved the axle and has arranged the space, makes reduction gear inside arrange the space compactness to reduce the holistic weight of driving system, still improved the reduction ratio simultaneously, improved the moment of torsion, strengthened driving system's reliability and comprehensive properties.
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 a sectional view of an integrated hub reduction gear according to an embodiment of the present invention;
fig. 2 is a schematic view of an integrated hub reduction gear according to an embodiment of the present invention;
FIG. 3 is a structural diagram of an inner gear ring and a knuckle in an embodiment of the present invention;
FIG. 4 is a schematic view of a driving wheel assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a driven wheel assembly according to an embodiment of the present invention;
fig. 6 is a schematic view of a planet carrier assembly in an embodiment of the present invention;
in the figure: 1-driving wheel assembly; 11-a driving wheel; 12-a driving wheel bearing; 13-bearing shield; 2-driven wheel assembly, 21-driven wheel; 22-driven wheel bearing; 3-a planet carrier assembly; 31-a planet carrier; 32-a planetary gear; 33-planet gear shafts; 34-planet gear bearings; 35-planet carrier bearing; 36-a limiting steel ball; 37-planet axle damper; 38-bearing press plate; 4-a sun gear; 5-gear carrier; 6-reducer case cover; 7-inner gear ring; 8-steering knuckle.
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 work belong to the protection scope of the present invention.
The embodiment of the application solves the problems of large size, heavy system weight and low speed ratio of the conventional parallel shaft type speed reducer by providing the integrated hub speed reducer, and achieves the purpose of more reasonable design and more optimized performance of the new energy commercial vehicle through the integrated speed reducer.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
in order to solve the problems of large volume, heavy system weight and low speed ratio of the existing parallel shaft type speed reducer, the technical scheme adopts a parallel shaft and planet row integrated structure, namely a set of coaxial planet gear mechanisms are arranged after speed reduction is carried out by a first-stage parallel shaft type gear, so that the input-output center distance of the speed reducer is greatly reduced, the volume of the speed reducer is reduced, the arrangement space of an axle is saved, and the arrangement space inside the speed reducer is compact, thereby reducing the whole weight of a power system, simultaneously improving the speed reduction ratio, improving the torque and enhancing the reliability and the comprehensive performance of the power system.
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.
Example 1:
the utility model provides an integrated form wheel reduction, it includes:
the driving wheel assembly 1 comprises a driving wheel 11, a driving wheel bearing 12 connected to a driving shaft of the driving wheel 11 and a bearing baffle 13;
a driven wheel assembly 2 including a driven wheel 21 and a driven wheel bearing 22;
the planet carrier assembly 3 comprises a planet carrier 31, planet gears 32, planet gear shafts 33, planet gear bearings 34, planet carrier bearings 35, limiting steel balls 36 and planet shaft baffles 37, wherein the planet carrier bearings 35 are limited and installed on the planet carrier 31 through bearing pressing plates 38 and bolts, the planet gears 32 are fixed on the planet carrier 31 through the planet gear shafts 33 and the planet gear bearings 34, and the planet gear shafts 33 are fixed through the planet shaft baffles 37 and the bolts; and
the sun gear 4, the gear carrier 5, the reducer box cover 6, the inner gear ring 7 and the steering knuckle 8;
the driving wheel 11 and the driven wheel 21 are supported and installed on the speed reducer box cover 6 and the gear carrier 5 through bearings, the driving wheel 11 is meshed with the driven wheel 21 through parallel gears, the driven wheel 21 and a driven wheel shaft are designed in an integrated mode, an external spline is arranged on the driven wheel shaft and is in clearance fit with a sun wheel 4 with an internal spline, the sun wheel 4 is meshed with a planetary gear 32, the inner gear ring 7 is fixed on a steering knuckle 8, and the inner gear ring 7 is meshed with the planetary gear 32 through matching of a box closing surface of the steering knuckle 8 and a box closing surface of the speed reducer box cover 6; the bearing baffle 13 is fixed on the gear rack 5 through an inner hexagon bolt; the planet gear shaft 33 and the planet carrier 31 are limited by the limiting steel ball 36.
It can be seen that, the utility model discloses a planetary wheel reduction gear passes through the parallel shaft and adds the planet row integrated configuration, arranges one set of coaxial planetary gear mechanism promptly after the parallel shaft type gear reduction of one-level, can reduce reduction gear input/output centre-to-centre spacing by a wide margin, has reduced the reduction gear volume, has saved the axle and has arranged the space, makes reduction gear inside arrange the space compactness to reduce the holistic weight of driving system, still improved the speed reduction ratio simultaneously, improved the moment of torsion, strengthened driving system's reliability and comprehensive properties.
The structure and operation of the integrated hub reduction gear according to the present invention will be described in detail with reference to the specific embodiments.
Referring to fig. 1-6, the present invention provides an integrated hub reduction gear, which includes: the device comprises a driving wheel assembly 1, a driven wheel assembly 2, a sun wheel 4, a planet carrier assembly 3, a gear carrier 5), a speed reducer box cover 6, an inner gear ring 7 and a steering knuckle 8.
As shown in fig. 4, the driving wheel assembly 1 includes a driving wheel 11, a driving wheel bearing 12, and a bearing baffle 13, the driving wheel bearing 12 is connected with a driving shaft of the driving wheel 11, and the bearing baffle 13 is fixed on the gear frame 5 by an inner hexagonal bolt for limiting the inner ring of the bearing.
As shown in fig. 5, the driven wheel assembly 2 includes a driven wheel 21 and a driven wheel bearing 22.
The driving pulley 11 and the driven pulley 21 are supported by bearings and mounted on the reduction case cover 6 and the carrier 5. In addition, the driving wheel 11 is provided with an external spline connected with an internal spline on the motor shaft to input the motor power, and then the driving wheel 11 is meshed with the driven wheel 21 through a parallel gear to realize primary speed reduction.
As shown in fig. 6, the planetary carrier assembly 3 is composed of a planetary carrier 31, planetary gears 32, planetary gear shafts 33, planetary gear bearings 34, planetary carrier bearings 35, limiting steel balls 36, planetary shaft baffles 37, and the like. The planet carrier bearing 35 is limited and mounted on the planet carrier 31 by means of the bearing baffle 13 and the bolt, the planet gear 32 is fixed on the planet carrier 31 by the planet gear shaft 33 and the planet gear bearing 34, and the planet gear shaft 35 is limited axially by the planet shaft baffle 37 and the bolt. The carrier assembly 3 is supported on the driven wheel 21 by a carrier bearing 35 while the sun gear 4 on the driven wheel 21 is meshed with the planetary gears 32 on the carrier assembly 3. As shown in fig. 3, the ring gear 7 is fixed to the knuckle 8 by a bolt, and the ring gear 7 is engaged with the planetary gears 32 by the engagement of the box closing surface of the knuckle 8 and the box closing surface of the cover 6 of the reduction gear box. Through the meshing of the sun gear 4, the planetary gear 32 and the inner gear ring 7, the power on the sun gear 4 is transmitted to the planet carrier 31 through the planetary gear 32, and then is connected with the external spline of the half shaft through the internal spline arranged on the planet carrier 31, so that the output power drives the wheel hub to drive the driving wheel to rotate.
In addition, in the planet carrier assembly 3, an oil passage is arranged on the planet gear shaft 33 and used for lubricating the planet gear bearing 34, and meanwhile, the planet gear shaft 33 and the planet carrier 31 are limited by the limiting steel ball 36, so that the outlet of the oil passage faces the outer side of the circle center, and the oil throwing purpose is achieved by the centrifugal force in the working and rotating process.
Bearing mounting hole department is equipped with into, goes out the oil groove in order to guarantee that the bearing can fully lubricate in the course of the work on the reduction case lid 6, and the reduction case lid 6 outside is provided with many strengthening ribs and is used for improving the intensity of the 6 casings of reduction case lid, and is provided with many water conservancy diversion muscle in reduction case lid 6 inside, can play gear oil water conservancy diversion effect, still is provided with liquid storage pot interface connection liquid storage pot on the reduction case lid 6 and is used for ventilating. The joint surface of the reducer case cover 6 and the steering knuckle 8 is sealed and combined in a gluing and/or oil sealing mode.
When integrated form wheel reduction gear is normally worked in this embodiment, its theory of operation is: when the motor works, the driving wheel 11 is connected with the internal spline of the motor shaft through the arranged external spline so as to input power, primary speed reduction is realized through the parallel gear engagement of the driving wheel 11 and the driven wheel 21, the driven wheel 21 and the driven wheel shaft are designed in an integrated mode, the driven wheel shaft is provided with the external spline which is in clearance fit with the sun wheel 4 provided with the internal spline, the power of the driven wheel 21 is transmitted to the sun wheel 4 through the spline, the sun wheel 4 and the planetary gear 32 are meshed with the inner gear ring 7, the power on the sun wheel 4 is transmitted to the planet carrier 31 through the planetary gear 32, the power is output through the planet carrier 31 and is connected with the external spline of the half shaft through the internal spline arranged on the planet carrier 31, and the output power drives the wheel hub to drive the wheel to rotate.
In summary, compared with the prior art, the method has the following beneficial effects:
the utility model discloses a planetary wheel reduction gear adds planet row integrated configuration through the parallel shaft, arranges one set of coaxial planetary gear mechanism promptly after the parallel shaft type gear reduction of one-level, can reduce reduction gear input/output centre-to-centre spacing by a wide margin, has reduced the reduction gear volume, has saved the axle and has arranged the space, makes reduction gear inside arrange the space compactness to reduce the holistic weight of driving system, still improved the reduction ratio simultaneously, improved the moment of torsion, strengthened driving system's reliability and comprehensive properties.
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 (8)
1. An integrated hub reduction gear, comprising:
the driving wheel assembly (1) comprises a driving wheel (11), a driving wheel bearing (12) connected to a driving shaft of the driving wheel (11), and a bearing baffle plate (13);
a driven wheel assembly (2) comprising a driven wheel (21) and a driven wheel bearing (22);
the planet carrier assembly (3) comprises a planet carrier (31), a planet gear (32), a planet gear shaft (33), a planet gear bearing (34), a planet carrier bearing (35), a limiting steel ball (36) and a planet shaft baffle plate (37), wherein the planet carrier bearing (35) is limited and installed on the planet carrier (31) through a bearing pressure plate (38) and a bolt, the planet gear (32) is fixed on the planet carrier (31) through the planet gear shaft (33) and the planet gear bearing (34), and the planet gear shaft (33) is fixed through the planet shaft baffle plate (37) and the bolt; and
the device comprises a sun gear (4), a gear carrier (5), a speed reducer box cover (6), an inner gear ring (7) and a steering knuckle (8);
the driving wheel (11) and the driven wheel (21) are supported and mounted on a speed reducer box cover (6) and a gear carrier (5) through bearings, the driving wheel (11) is meshed with the driven wheel (21) through parallel gears, the driven wheel (21) and a driven wheel shaft are designed in an integrated mode, an external spline is arranged on the driven wheel shaft and is in clearance fit with a sun wheel (4) with an internal spline, the sun wheel (4) is meshed with a planetary gear (32), the inner gear ring (7) is fixed on a steering knuckle (8), and the inner gear ring (7) is meshed with the planetary gear (32) through matching of a box closing surface of the steering knuckle (8) and a box closing surface of the speed reducer box cover (6); the bearing baffle (13) is fixed on the gear rack (5) through an inner hexagon bolt; the planet gear shaft (33) and the planet carrier (31) are limited through the limiting steel ball (36).
2. The integrated hub reduction unit according to claim 1, wherein the driving wheel (11) is connected with an internal spline of a motor shaft through an external spline; the planet carrier (31) is connected with the external spline on the half shaft through the internal spline.
3. The integrated hub reduction unit according to claim 1, wherein the pinion shaft (33) is provided with an oil passage for lubricating the pinion bearings (34).
4. The integrated hub reduction unit according to claim 1, wherein the bearing mounting holes on the reduction unit cover (6) are provided with oil inlet and outlet grooves to ensure sufficient lubrication of the bearings.
5. The integrated hub reduction unit according to claim 1, wherein the cover (6) is externally provided with a plurality of ribs.
6. The integrated hub reduction unit according to claim 1, wherein a plurality of flow guiding ribs for guiding the gear oil are arranged in the reduction unit cover (6).
7. The integrated hub reduction unit according to claim 1, wherein the joint surface of the reduction unit cover (6) and the steering knuckle (8) is sealed by gluing and/or oil sealing.
8. The integrated hub reduction unit according to claim 1, wherein a reservoir connection is provided on the reduction unit cover (6) for venting the reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121304493.XU CN215257638U (en) | 2021-06-10 | 2021-06-10 | Integrated hub reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121304493.XU CN215257638U (en) | 2021-06-10 | 2021-06-10 | Integrated hub reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257638U true CN215257638U (en) | 2021-12-21 |
Family
ID=79478841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121304493.XU Active CN215257638U (en) | 2021-06-10 | 2021-06-10 | Integrated hub reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257638U (en) |
-
2021
- 2021-06-10 CN CN202121304493.XU patent/CN215257638U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109441708B (en) | Inner curve radial plunger motor based on planetary transmission | |
| CN203146709U (en) | Spiral bevel gear input planetary gear case | |
| CN201232735Y (en) | Planet reduction gear | |
| CN107763194A (en) | A kind of car deceleration device and its method of work with high-efficiency lubricating system | |
| CN215257638U (en) | Integrated hub reduction gear | |
| CN204647162U (en) | One-level cone tooth input planet gear case with pressure lubrication | |
| CN103507628A (en) | Wheel driving device and vehicle comprising wheel driving device | |
| CN203670630U (en) | Composite planetary differential mechanism wind power gearbox | |
| CN210617849U (en) | Novel differential transmission rear axle between parallel shafts | |
| CN217002953U (en) | Novel wheel edge integrated system | |
| CN210135185U (en) | Hydraulic speed reducer | |
| CN210135186U (en) | Hydraulic speed reducer | |
| CN112762146A (en) | Electric driving wheel with planetary speed reduction transmission | |
| CN203516709U (en) | Transmission output module | |
| CN202703262U (en) | Wheel driving device and vehicle including the same | |
| CN108437787B (en) | New energy electric automobile rear-drive direct-connection speed reducer | |
| CN220281123U (en) | Hub power transmission device | |
| CN215763169U (en) | Horizontal reduction gearbox with parking brake | |
| CN211942962U (en) | Coaxial two-stage planetary row speed reduction electric drive bridge | |
| CN214154263U (en) | Integrated series-connection range-extending generator system | |
| CN215214668U (en) | Main reducer bearing lubricating mechanism | |
| CN218347909U (en) | High-strength miniature planetary reduction gear box | |
| CN215153676U (en) | Rear axle assembly of heavy-load motor tricycle | |
| CN215370802U (en) | Wheel edge driving speed reducer for sugarcane harvester | |
| CN218041006U (en) | Electric bicycle hub motor based on oil lubrication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |