CN221272553U - Hub deceleration system, electric wheel and vehicle - Google Patents
Hub deceleration system, electric wheel and vehicle Download PDFInfo
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- CN221272553U CN221272553U CN202322508034.9U CN202322508034U CN221272553U CN 221272553 U CN221272553 U CN 221272553U CN 202322508034 U CN202322508034 U CN 202322508034U CN 221272553 U CN221272553 U CN 221272553U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
The utility model discloses a hub reduction system, an electric wheel and a vehicle. The motor is used for fixedly arranging on the frame, the motor comprises a stator and a rotor which are installed in a relative rotation mode, the planetary gear reduction mechanism comprises a sun gear, a planet wheel, a planet carrier and a gear ring, the gear ring is fixedly connected with the stator, the sun gear is in driving connection with the rotor, the brake comprises a movable part and a friction part which can move relatively, the friction part is used for being fixedly arranged on the frame, the movable part is in driving connection with the planet carrier, and the rotation center of the planetary gear reduction mechanism, the rotation center of the movable part and the rotation center of the motor are coaxially arranged. The vehicle driving device aims at solving the problems that the structure is compact, the arrangement is convenient, the vehicle use space is maximized and the transmission efficiency is high on the premise of ensuring the normal driving of the wheels, and the vehicle driving device can be matched with a distributed system for use.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a hub deceleration system, an electric wheel and a vehicle.
Background
At present, the centralized driving system who adopts on the market mostly contains a large amount of transmission parts such as derailleur, transmission shaft, differential mechanism, has increased the car weight, has reduced transmission efficiency, and because transmission parts are too much and the specification is great, can make each part divide and scatter and locate each position of vehicle, leads to the user to use inconvenient, and then influences user's use experience.
Disclosure of utility model
The utility model mainly aims to overcome the defects of the prior art, provides a hub deceleration system, aims to solve the problems of compact running structure, convenient arrangement, maximized vehicle use space and high transmission efficiency on the premise of ensuring normal driving of wheels, and can be matched with a distributed system for use.
In order to achieve the above object, the present utility model provides a hub deceleration system, comprising:
The motor is fixedly arranged on the frame and comprises a stator and a rotor which are installed in a relative rotation mode;
The planetary gear speed reducing mechanism comprises a sun gear, a planet carrier and a gear ring, wherein the gear ring is fixedly connected with the stator, and the sun gear is in driving connection with the rotor; and
The brake comprises a movable part and a friction part which can move relatively, the friction part is fixedly arranged on the frame, and the movable part is in driving connection with the planet carrier;
Wherein the rotation center of the planetary gear reduction mechanism, the rotation center of the movable portion, and the motor rotation center are coaxially arranged.
Optionally, the hub deceleration system further comprises a transmission part which is respectively connected with the rotor and the sun gear in a driving way and is used for transmitting the power of the rotor to the sun gear.
Optionally, the transmission part is detachably connected with the rotor; and/or the number of the groups of groups,
The transmission part is detachably connected with the sun gear.
Optionally, the transmission part comprises a transmission shaft, one end of the transmission shaft is connected with the rotor spline, and the other end of the transmission shaft is connected with the sun gear spline.
Optionally, the movable part is connected with the planet carrier through a key; or alternatively
The movable part is in spline connection with the planet carrier.
Optionally, the planetary gear speed reducing mechanism further comprises a planetary wheel shaft, and a bearing can be arranged between the planetary wheel and the planetary wheel shaft.
Optionally, the gear ring is connected with the stator straight teeth; or the gear ring is in spline connection with the stator; or alternatively
The gear ring is in interference connection with the stator.
Optionally, the brake comprises a disc brake or a drum brake.
The utility model also provides an electric wheel, which comprises a wheel hub and a tire, wherein the wheel hub comprises an inner wheel hub and an outer wheel hub, the inner wheel hub is used for being fixedly connected with a frame, the outer wheel hub is rotationally connected with the planet carrier, the tire is fixedly sleeved on the outer wheel hub, the electric wheel further comprises a wheel hub speed reducing system, the wheel hub speed reducing system is arranged in the wheel hub, and the wheel hub speed reducing system comprises:
The motor is fixedly arranged on the frame and comprises a stator and a rotor which are installed in a relative rotation mode;
The planetary gear speed reducing mechanism comprises a sun gear, a planet carrier and a gear ring, wherein the gear ring is fixedly connected with the stator, and the sun gear is in driving connection with the rotor; and
The brake comprises a movable part and a friction part which can move relatively, the friction part is fixedly arranged on the frame, and the movable part is in driving connection with the planet carrier;
Wherein the rotation center of the planetary gear reduction mechanism, the rotation center of the movable portion, and the motor rotation center are coaxially arranged.
The utility model also provides a vehicle, which comprises the electric wheel, wherein the electric wheel comprises a hub and a tire, the hub comprises an inner hub and an outer hub, the inner hub is fixedly connected with a vehicle frame, the outer hub is rotatably connected with the planet carrier, the tire is fixedly sleeved on the outer hub, the vehicle further comprises a hub speed reducing system, the hub speed reducing system is arranged in the hub, and the hub speed reducing system comprises:
The motor is fixedly arranged on the frame and comprises a stator and a rotor which are installed in a relative rotation mode;
The planetary gear speed reducing mechanism comprises a sun gear, a planet carrier and a gear ring, wherein the gear ring is fixedly connected with the stator, and the sun gear is in driving connection with the rotor; and
The brake comprises a movable part and a friction part which can move relatively, the friction part is fixedly arranged on the frame, and the movable part is in driving connection with the planet carrier;
Wherein the rotation center of the planetary gear reduction mechanism, the rotation center of the movable portion, and the motor rotation center are coaxially arranged.
In the solution provided by the present utility model, by proposing a hub reduction system for mounting inside a hub, i.e. between an inner hub and an outer hub. The operator mounts the stator portion of the motor to the inner hub, mounts the planetary gear reduction mechanism, mounts the planetary gear to the planet carrier, mounts the stator, sun gear and planet carrier together, mounts the whole to the inner hub, mounts the outer hub to the device, and finally mounts the brake and various external accessories into the device. The power flow is power output from the motor to a sun gear of the planetary gear reducer structure, and the sun gear transmits power to the planetary gears, so that the planetary gears rotate along with the power flow, and the outer hubs rotate. In addition, the carrier rotation transmits power to the brake, which is retarded to transmit power to the inner hub. Therefore, the problems of compact structure, convenient arrangement, maximized vehicle use space and high transmission efficiency of running on the premise of ensuring normal driving of wheels are solved, and the vehicle can be matched with a distributed system for use.
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 a hub reduction system provided by the present utility model.
Reference numerals illustrate:
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.
At present, the centralized driving system who adopts on the market mostly contains a large amount of transmission parts such as derailleur, transmission shaft, differential mechanism, has increased the car weight, has reduced transmission efficiency, and because transmission parts are too much and the specification is great, can make each part divide and scatter and locate each position of vehicle, leads to the user to use inconvenient, and then influences user's use experience.
In view of the foregoing, the present utility model provides a hub reduction system 10, an electric wheel 100 and a vehicle 1000, and fig. 1 is an embodiment of the present utility model.
Referring to fig. 1, a hub reduction system 10 according to an embodiment of the present utility model includes a motor 1, a planetary gear reduction mechanism 2 and a brake 3. The motor 1 is used for being fixedly arranged on a frame, the motor 1 comprises a stator 11 and a rotor 12 which are installed in a relative rotation mode, the planetary gear reduction mechanism 2 comprises a sun gear 21, a planet gear 22, a planet carrier 23 and a gear ring 24, the gear ring 24 is fixedly connected with the stator 11, the sun gear 21 is in driving connection with the rotor 12, the brake 3 comprises a movable part 31 and a friction part 32 which can be relatively moved, the friction part 32 is used for being fixedly arranged on the frame, the movable part 31 is in driving connection with the planet carrier 23, and the rotation center of the planetary gear reduction mechanism 2, the rotation center of the movable part 31 and the rotation center of the motor 1 are coaxially arranged.
In the solution provided by the present utility model, by proposing a hub reduction system 10 intended to be mounted inside a hub 20, i.e. between an inner hub 201 and an outer hub 202. The operator mounts the stator 11 of the motor 1 partially on the inner hub 201, mounts the planetary gear reduction mechanism 2, mounts the planetary gears 22 to the planetary carrier 23, mounts the stator 11, the sun gear 21 and the planetary carrier 23 together, mounts the whole to the inner hub 201, mounts the outer hub 202 to the device, and finally mounts the brake 3 and various external accessories into the device. The power flow is that power is output from the motor 1 to a sun gear 21 of a planetary gear reducer structure, and the sun gear 21 transmits the power to a planetary gear 22, so that a planetary carrier 23 rotates accordingly to rotate an outer hub 202.
In addition, rotation of the planet carrier 23 transfers power to the brake 3, which brake 3 reduces in speed for transferring power to the inner hub 201. Therefore, the problems of compact structure, convenient arrangement, maximized use space of the vehicle 1000 and high transmission efficiency of the running vehicle can be solved on the premise of ensuring normal driving of the wheels, and the running vehicle can be matched with a distributed system for use.
The sun gear 21 is in driving connection with the rotor 12 through a transmission part 4, and the transmission part 4 is in driving connection with the rotor 12 and the sun gear 21 respectively, so as to transmit the power of the rotor 12 to the sun gear 21. The stator 11 and the rotor 12, wherein the stator 11 is a stationary part of the motor or the generator 1, the rotating part is called a rotor 12, and the main function mode of the rotor 12 generates power by following the movement of a rotating magnetic field.
To facilitate the installation and removal of the device, the transmission part 4 may be further optionally installed in a detachable connection with the rotor 12 and the sun gear 21, respectively.
In an embodiment, the transmission part 4 may be a transmission shaft 4a, and one end of the transmission shaft 4a is connected to the rotor 12 of the motor 1 through a spline, and the other end is connected to the sun gear 21 through a spline. Wherein, adopt spline connection possess following advantage: because more teeth and grooves are directly and symmetrically manufactured on the shaft and the hub 20 holes, spline connection stress is more uniform; the key groove is shallow, stress concentration at the tooth root is small, and the strength of the shaft and the hub 20 is less weakened; the number of teeth is more, the total contact area is larger, so that larger load can be borne, and the centering and guiding properties of the parts on the shaft and the shaft are good.
In another embodiment, the transmission part 4 may also be a motor 1 gear, and the motor 1 gear is in driving connection with the motor rotor 12, so that the motor 1 gear may rotate, and further mesh with the sun gear 21 to transmit power to the sun gear 21. The arrangement of the transmission 4 is obviously not limited thereto, as long as it is possible to achieve a transmission of power from the rotor 12 of the motor 1 to the component at the sun gear 21, all within the scope of the application.
Further, the planetary gear reduction mechanism 2 further includes a planetary axle 25, and a bearing may be disposed between the planetary axle 25 and the planetary gear 22. So arranged, the bearings are used to support, ensuring relative movement of the planet wheel 22 and the planet wheel axle 25.
In addition, the coaxial arrangement of the rotation center can be realized by bearing types and different bearing arrangement modes, and the bearing types are various and can be angular contact bearings, ball bearings and the like. Thereby realizing the substantial coincidence between the center of mass and the center of the wheel, and further improving the movement performance.
In addition, the gear ring 24 is fixedly connected with the stator 11, and various connection modes can be adopted, and straight tooth connection, spline connection or interference connection can be adopted. The straight tooth connection is a connection mode that the end of the pressed component is made into a tooth tenon and is propped in the tooth groove of the other component to transfer pressure, and the straight tooth connection has the advantages of simple structure, material saving and definite force transfer. Among these, the advantages of the spline connection have been described above. The interference connection is formed by interference fit between two connected pieces, and has the advantages of simple structure, good centering performance, small fatigue strength weakening of a shaft, high bearing capacity and good shock resistance and load performance.
In an embodiment, the structure of the brake 3 may be a disc brake 3, where the disc brake 3 has a hydraulic type, and is controlled by hydraulic pressure, and main components include a brake disc, a wheel cylinder, a brake caliper, an oil pipe, and the like. The disc brake 3 has the advantages of fast heat dissipation, light weight, simple structure and convenient adjustment, the disc brake 3 can stir oil for lubrication, no other additional active lubrication devices are needed, and the disc brake 3 has a simpler structure and does not need a brake cable. In another embodiment, the brake 3 may be a drum brake 3, which achieves the technical effect of driving the planet carrier 23 to decelerate, so that the planetary gear reduction mechanism 2 decelerates, and the outer hub 202 decelerates.
The utility model further provides an electric wheel 100, the electric wheel 100 comprises a wheel hub 20 and a tire 30, the wheel hub 20 comprises an inner wheel hub 201 and an outer wheel hub 202, the inner wheel hub 201 is used for being fixedly connected with a frame, the outer wheel hub 202 is rotationally connected with the planet carrier 23, the tire 30 is fixedly sleeved on the outer wheel hub 202, the electric wheel 100 further comprises the wheel hub speed reducing system 10, the wheel hub speed reducing system 10 is arranged in the wheel hub 20, and the wheel hub 20 is used for supporting the tire 30. The electric wheel 100 is widely adaptive to a whole vehicle platform, for example, a traditional wheel can be driven before use, the electric wheel 100 is driven after use, damage of the electric wheel 100 is single, the work of the electric wheel 100 on the other side is not affected, and the wheel can achieve a mode of combining electromagnetic braking and disc braking, so that energy is saved, and the electric wheel 100 adopts all the technical schemes of the hub reduction system embodiment, so that the technical effects brought by the technical schemes of the embodiment are achieved, and are not repeated one by one.
The utility model also provides a vehicle 1000, and because the vehicle 1000 adopts all the technical schemes of the embodiments, the technical effects brought by the technical schemes of the hub reduction system embodiments are also achieved, and the technical effects are not repeated here.
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 (10)
1. A hub reduction system, comprising:
The motor is fixedly arranged on the frame and comprises a stator and a rotor which are installed in a relative rotation mode;
The planetary gear speed reducing mechanism comprises a sun gear, a planet carrier and a gear ring, wherein the gear ring is fixedly connected with the stator, and the sun gear is in driving connection with the rotor; and
The brake comprises a movable part and a friction part which can move relatively, the friction part is fixedly arranged on the frame, and the movable part is in driving connection with the planet carrier;
Wherein the rotation center of the planetary gear reduction mechanism, the rotation center of the movable portion, and the motor rotation center are coaxially arranged.
2. The hub reduction system of claim 1, further comprising a transmission in driving communication with said rotor and sun gear, respectively, for transmitting rotor power to said sun gear.
3. The hub reduction system of claim 2, wherein said transmission is detachably connected to said rotor; and/or the number of the groups of groups,
The transmission part is detachably connected with the sun gear.
4. A hub reduction system as claimed in claim 3, wherein said drive section includes a drive shaft having one end thereof splined to said rotor and another end thereof splined to said sun gear.
5. A hub reduction system according to claim 3, wherein said movable portion is keyed to said planet carrier; or alternatively
The movable part is in spline connection with the planet carrier.
6. The hub reduction system of claim 1, wherein said planetary gear reduction mechanism further comprises a planetary axle, said planetary wheel and said planetary axle being positionable with bearings therebetween.
7. The hub reduction system of claim 1, wherein said ring gear is connected to said stator teeth; or the gear ring is in spline connection with the stator; or alternatively
The gear ring is in interference connection with the stator.
8. The hub reduction system of claim 1, wherein said brake comprises a disc brake or a drum brake.
9. An electric wheel comprising:
the hub comprises an inner hub and an outer hub, the inner hub is used for being fixedly connected with the frame, and the outer hub is rotationally connected with the planet carrier;
the tyre is fixedly sleeved on the outer hub; and
The hub reduction system of any of claims 1-8, disposed within the hub.
10. A vehicle comprising a motorized wheel according to claim 9.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221272553U true CN221272553U (en) | 2024-07-05 |
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| GR01 | Patent grant |