CN220616078U - Large-torque electric power assisting mechanism - Google Patents
Large-torque electric power assisting mechanism Download PDFInfo
- Publication number
- CN220616078U CN220616078U CN202322402735.4U CN202322402735U CN220616078U CN 220616078 U CN220616078 U CN 220616078U CN 202322402735 U CN202322402735 U CN 202322402735U CN 220616078 U CN220616078 U CN 220616078U
- Authority
- CN
- China
- Prior art keywords
- assembly
- gear
- motor
- shaft
- shaft assembly
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 14
- 238000000429 assembly Methods 0.000 claims abstract description 14
- 230000020347 spindle assembly Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a high-torque electric power assisting mechanism which comprises a shell, a shell cover, a motor assembly, a main shaft assembly, a first shaft assembly, a second shaft assembly, a moment sensor assembly and a circuit board assembly, wherein the first shaft assembly is connected with the motor assembly; the main shaft assembly, the first shaft assembly and the second shaft assembly are meshed with each other through three gear assemblies to form three-shaft linkage; the motor component provides power, the torque sensor component receives a torque signal, the circuit board component receives the signal to drive the motor component to rotate, and the three assemblies are sequentially driven to rotate through gear engagement. The high-rotation-speed low-torque power generated by the motor shaft during the operation of the mechanism is transmitted to the main shaft through primary speed reduction, secondary speed reduction and tertiary speed reduction, so that the speed reduction effect is achieved, and meanwhile, the high-torque power is output through the main shaft. And the gears are designed with small modulus and multiple teeth, and the gear precision grade is high, so that the running stability of the gears is ensured, the noise is low, the loss of energy consumption is reduced, the efficiency is improved, the riding feeling is enhanced, and the riding experience is better.
Description
Technical Field
The utility model relates to the field of electric power assisting mechanisms, in particular to a high-torque electric power assisting mechanism.
Background
In the functional module of the electric bicycle, the driving unit is that the motor is driven to rotate by the power provided by the battery, so as to drive the bicycle; as a brain and an actuating mechanism of the electric bicycle, the running power and fluency of the electric bicycle directly influence the riding feeling of the electric bicycle.
In the existing products, two-axis linkage is adopted, the speed ratio of the two-axis linkage products is small, the final output torque is small, and the power is insufficient. Moreover, when the gear set is designed, the product with two-shaft linkage is often large in gear modulus and small in number of teeth, which can lead to unstable transmission and large noise, finally leads to large energy loss, reduces the efficiency of a motor, greatly discounts the output torque and influences riding experience. Therefore, the electric power-assisted driving unit has the defects of small torque and small power, cannot meet the power requirements of riding personnel, can influence the riding experience to a certain extent, has poor sense of experience, and loses riding fun.
Disclosure of Invention
The utility model aims to: in order to solve the problems in the prior art, the utility model provides a high-torque electric power assisting mechanism which adopts multi-axis linkage to effectively solve the problem of insufficient torque and power of the existing driving unit.
The technical scheme is as follows: in order to achieve the above purpose, the present utility model adopts the following technical scheme: a high-torque electric power assisting mechanism comprises a shell, a shell cover, a motor assembly, a main shaft assembly, a first shaft assembly, a second shaft assembly, a torque sensor assembly and a circuit board assembly; the shell and the shell cover are matched to form a cavity, and the main shaft assembly, the first shaft assembly and the second shaft assembly are integrated on a circuit board assembly in the middle of the cavity; the motor component is assembled at one side in the cavity, the end part close to the shell cover is provided with a magnetic braid, and the other end part penetrates through the shell and is assembled in the cavity through the motor cover; the main shaft assembly, the first shaft assembly and the second shaft assembly are meshed with each other through three gear assemblies to form three-shaft linkage; the motor assembly provides power; the torque sensor assembly receives a torque signal, the circuit board assembly receives the signal to drive the motor assembly to rotate, and the first shaft assembly, the second shaft assembly and the main shaft are sequentially driven to rotate through gear meshing.
Further, the housing cover and the housing are assembled by a plurality of screws provided in the middle of the housing connecting portion and the periphery.
Further, the motor component extends from the direction of the shell cover to the direction of the shell and sequentially comprises a magnetic braid, a motor shaft component, a retainer ring, a deep groove ball bearing, a rotor assembly, a stator, a motor tolerance ring and a motor cover; the motor assembly is assembled in the cavity through the motor cover and penetrates through the shell.
Furthermore, the first shaft assembly, the second shaft assembly and the main shaft assembly respectively comprise a first shaft gear assembly, a second shaft gear assembly and a main shaft gear assembly in sequence, and the three gear assemblies are all double gears with a size of one.
Further, the large gear of the shaft one gear assembly is meshed with the gear on the motor assembly, the small gear is meshed with the large gear of the shaft two gear assembly, the small gear of the shaft two gear assembly is meshed with the large gear of the main shaft gear assembly, the small gear of the main shaft gear assembly is connected with an externally applied electric power assisted bicycle, and three gear assemblies sequentially form three-level linkage.
Further, a through hole is formed in the shell cover, and a pinion of the spindle gear assembly of the spindle assembly penetrates through the through hole to be connected with an electric power-assisted bicycle to which the pinion is applied.
Furthermore, all gears of the three gear assemblies are designed with small modulus, multiple gears and high precision grade.
Still further, the torque sensor assembly includes a torque sensor assembly coupled below the spindle assembly.
Furthermore, when riding, the moment sensor component receives moment signals, the circuit board component senses the signals, the signals are transmitted to the magnetic encoder through the encoder sensing signals, and finally the motor component is driven to rotate.
The beneficial effects are that: compared with the prior art, the utility model has the following remarkable advantages: (1) The utility model adopts multi-axis linkage, and considers the stability of gear engagement and the improvement of the speed ratio during design, thereby reducing the energy loss, improving the output torque and increasing the torque by nearly 1/3. (2) The high-rotation-speed low-torque power generated by the motor shaft during the operation of the mechanism is transmitted to the main shaft through primary speed reduction, secondary speed reduction and tertiary speed reduction, so that the speed reduction effect is achieved, and meanwhile, the high-torque power is output through the main shaft. The gears are all designed with small modulus and multiple teeth, the gear precision grade is high, the running stability of the gears is guaranteed, the noise is low, the loss of energy consumption is reduced, the efficiency is improved, the riding feeling is enhanced, and the riding experience is better. (3) Through the layout of reasonable inside cavity structure, the casing is small in size, and is more exquisite than the product casing of two-axis linkage on the market, has made things convenient for the design overall arrangement of gallows and whole car frame.
Drawings
FIG. 1 is a schematic diagram of an explosion structure of a high torque electric booster mechanism according to embodiment 1 of the present utility model;
FIG. 2 is a schematic view of the structure of a housing of the high torque electric power assisting mechanism according to embodiment 1 of the present utility model;
FIG. 3 is a schematic view of the cross-sectional structure of the direction of FIG. 2G-G;
FIG. 4 is a schematic view of the structure of the cover of the high torque electric power assisting mechanism according to embodiment 1 of the present utility model;
FIG. 5 is a schematic view of the cross-sectional structure in the direction of FIG. 4H-H;
FIG. 6 is a schematic perspective view of embodiment 1 of the present utility model;
FIG. 7 is a schematic view of a three-stage gear interlocking engagement structure in embodiment 1 of the present utility model;
fig. 8 is an exploded view of the motor assembly according to embodiment 1 of the present utility model.
Detailed Description
Example 1:
referring to fig. 1-6, the utility model discloses a high torque electric power assisting mechanism, which comprises a shell cover 1, a shell 2, a motor component 3, a main shaft assembly 7, a shaft assembly 4, a shaft two assembly 6, a torque sensor component 9 and a circuit board component 8; the shell 2 and the shell cover 1 are matched to form a cavity, and the main shaft assembly 7, the shaft assembly 4 and the shaft assembly 6 are integrated on a circuit board assembly 8 in the middle of the cavity; the housing cover 1 and the housing 2 are assembled by a plurality of screws arranged in a peripheral manner and by a central housing connection 12.
Referring to fig. 1 and 8, the motor assembly 3 is assembled at one side of the cavity, and includes a magnetic braid 31, a motor shaft assembly 32, a retainer ring 33, a deep groove ball bearing 34, a rotor assembly 35, a stator 36, a motor tolerance ring 37 and a motor cover 38, which extend from the direction of the housing cover 2 to the direction of the housing 1 in sequence; the motor assembly 3 is assembled through the housing 1 and within the cavity by a motor cover 38.
The shaft assembly 4, the shaft assembly 6 and the spindle assembly 7 respectively and sequentially comprise a shaft one gear assembly, a shaft two gear assembly and a spindle gear assembly 71, and the three gear assemblies are all double gears with a size of one. The three assemblies are meshed with each other through three gear assemblies to form three-axis linkage; referring specifically to fig. 7, the large gear 412 of the first-axle gear assembly is meshed with the gear 321 on the motor shaft assembly 32, the small gear 44 is meshed with the large gear 612 of the second-axle gear assembly, the small gear 64 of the second-axle gear assembly is meshed with the large gear 712 of the main axle gear assembly 71, the small gear 74 of the main axle gear assembly 71 is connected with an externally applied electric bicycle, and three gear assemblies sequentially form three-stage linkage. The housing cover 1 is provided with a through hole 5, and a pinion 74 of a spindle gear assembly 71 of the spindle assembly 7 is connected with an electric bicycle to which the through hole 5 is applied. The optimal gear ratio for the three stage gear is 38.645. All gears of the three gear assemblies are designed with small modulus, multiple gears and high precision grade, and the design is as follows:
gear set 1 mn=1.3 mt=1.465 α=26°
Gear set 2mn=0.584 mt=0.633 α=18.5°
Gear set 3 mn=0.863 mt=0.878α=20.5 °.
Where mn is the normal face modulus, mt is the end face modulus, and α is the gear pressure angle.
The torque sensor assembly 9 comprises a torque sensor assembly, which is connected below the spindle assembly 7. The motor assembly 3 provides power; during riding, the moment sensor assembly 9 receives moment signals, the circuit board assembly 8 receives the signals, the signals are transmitted to the magnetic braid 31 through the encoder induction, the motor assembly 3 is finally driven to rotate, the motor shaft assembly 32 is meshed through the gear 321, and the three-level gear linkage structure drives the first shaft assembly 4, the second shaft assembly 6 and the main shaft assembly 7 to rotate in sequence, so that the electric bicycle applied by the motor assembly is driven to ride. The high-rotation-speed low-torque power generated by the motor shaft during the operation of the mechanism is transmitted to the main shaft through primary speed reduction, secondary speed reduction and tertiary speed reduction, so that the speed reduction effect is achieved, and meanwhile, the high-torque power is output through the main shaft, and the torque is increased by nearly 1/3 compared with that of the traditional two-shaft linkage mechanism. The gears used in the utility model are all designed with small modulus and multiple teeth, and the gear precision grade is high, so that the running stability of the gears is ensured, the noise is low, the loss of energy consumption is reduced, the efficiency is improved, the riding feeling is enhanced, and the riding experience is better.
Claims (9)
1. The high-torque electric power assisting mechanism is characterized by comprising a shell, a shell cover, a motor assembly, a main shaft assembly, a first shaft assembly, a second shaft assembly, a moment sensor assembly and a circuit board assembly; the shell and the shell cover are matched to form a cavity, and the main shaft assembly, the first shaft assembly and the second shaft assembly are integrated on a circuit board assembly in the middle of the cavity; the motor component is assembled at one side in the cavity, the end part close to the shell cover is provided with a magnetic braid, and the other end part penetrates through the shell and is assembled in the cavity through the motor cover; the main shaft assembly, the first shaft assembly and the second shaft assembly are meshed with each other through three gear assemblies to form three-shaft linkage; the motor assembly provides power; the torque sensor assembly receives a torque signal, the circuit board assembly receives the signal to drive the motor assembly to rotate, and the first shaft assembly, the second shaft assembly and the main shaft are sequentially driven to rotate through gear meshing.
2. The high torque electric power assist mechanism of claim 1, wherein: the shell cover and the shell are assembled by a plurality of bolts arranged on the periphery through a middle shell connecting part.
3. The high torque electric power assist mechanism of claim 1, wherein: the motor assembly extends from the direction of the shell cover to the direction of the shell and sequentially comprises a magnetic braid, a motor shaft assembly, a check ring, a deep groove ball bearing, a rotor assembly, a stator, a motor tolerance ring and a motor cover; the motor assembly is assembled in the cavity through the motor cover and penetrates through the shell.
4. The high torque electric power assist mechanism of claim 1, wherein: the first shaft assembly, the second shaft assembly and the main shaft assembly respectively and sequentially comprise a first shaft gear assembly, a second shaft gear assembly and a main shaft gear assembly, and the three gear assemblies are all double gears with the same size.
5. The high torque electric power assist mechanism as set forth in claim 4, wherein: the gear wheel of the first gear component of the shaft is meshed with the gear wheel on the motor component, the pinion is meshed with the gear wheel of the second gear component of the shaft, the pinion of the second gear component of the shaft is meshed with the gear wheel of the main shaft gear component, the pinion of the main shaft gear component is connected with an externally applied electric power-assisted bicycle, and three gear components sequentially form three-level linkage.
6. The high torque electric power assist mechanism as set forth in claim 4, wherein: the shell cover is provided with a through hole, and a pinion of the main shaft gear assembly of the main shaft assembly penetrates through the through hole to be connected with an electric power-assisted bicycle to which the pinion is applied.
7. The high torque electric power assist mechanism as set forth in claim 4, wherein: all gears of the three gear assemblies are designed with small modulus, multiple gears and high precision grade.
8. The high torque electric power assist mechanism of claim 1, wherein: the torque sensor assembly includes a torque sensor assembly connected below the spindle assembly.
9. The high torque electric power assist mechanism of claim 1, wherein: when riding, the moment sensor component receives moment signals, the circuit board component senses the signals, the signals are transmitted to the magnetic encoder through the encoder sensing signals, and finally the motor component is driven to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322402735.4U CN220616078U (en) | 2023-09-05 | 2023-09-05 | Large-torque electric power assisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322402735.4U CN220616078U (en) | 2023-09-05 | 2023-09-05 | Large-torque electric power assisting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220616078U true CN220616078U (en) | 2024-03-19 |
Family
ID=90225958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322402735.4U Active CN220616078U (en) | 2023-09-05 | 2023-09-05 | Large-torque electric power assisting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220616078U (en) |
-
2023
- 2023-09-05 CN CN202322402735.4U patent/CN220616078U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216618421U (en) | Double-motor worm and gear mechanism | |
| CN206582286U (en) | Steering engine | |
| CN220616078U (en) | Large-torque electric power assisting mechanism | |
| CN102962682A (en) | Precise-gear-transmission type A/C-axis double-swinging-angle numerical control milling head | |
| CN116923621A (en) | Large-torque electric power assisting mechanism | |
| CN113212158A (en) | Coaxial planetary power transmission axle and new energy automobile using same | |
| CN101284562B (en) | Double electric motor driving structure for electric vehicle | |
| CN214900524U (en) | Coaxial line type driving motor assembly | |
| CN214823579U (en) | Power-assisted mechanism for commercial vehicle recirculating ball steering gear | |
| CN115459520A (en) | Hub motor and power-assisted electric bicycle | |
| CN113212540A (en) | Power-assisted steering structure for recirculating ball steering gear | |
| CN201383737Y (en) | Electronic travel speed reducer | |
| CN111016628B (en) | Central driving integrated electric driving system | |
| CN217583071U (en) | Two-stage gear drive speed reducer | |
| CN219295620U (en) | Middle motor using flexible speed reducer | |
| CN213661362U (en) | Three-stage gear transmission speed reducing motor | |
| CN201646841U (en) | Automobile electric power-assisted steering device directly driven by motor | |
| CN213176677U (en) | Coaxial two-stage planetary reducer | |
| CN221003644U (en) | Speed reducing box for duplex gear motor | |
| CN216762053U (en) | Compact mid-motor adopting two-stage gear reduction mechanism | |
| CN217789493U (en) | Crawler reduction gearbox structure for underwater robot | |
| CN2937651Y (en) | Synchronous driving device | |
| CN220139370U (en) | Motor drive assembly | |
| CN217805127U (en) | Gear speed-changing coaxial driving bicycle with double stators and single rotor axial magnetic field motor | |
| CN221428712U (en) | Novel bidirectional coaxial gear motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |