CN217683074U - Speed reducing mechanism of electric wheel driving system - Google Patents
Speed reducing mechanism of electric wheel driving system Download PDFInfo
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- CN217683074U CN217683074U CN202221308510.1U CN202221308510U CN217683074U CN 217683074 U CN217683074 U CN 217683074U CN 202221308510 U CN202221308510 U CN 202221308510U CN 217683074 U CN217683074 U CN 217683074U
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- electric wheel
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Abstract
本实用新型公开了一种电动轮驱动系统的减速机构，属于电动轮驱动系统技术领域，其技术方案要点包括内齿圈，所述内齿圈的内部啮合有太阳轮，所述太阳轮的表面啮合有行星轮，所述行星轮靠近内齿圈的一侧与内齿圈相啮合，所述行星轮的内部固定连接有轮轴，所述轮轴表面的两侧均活动连接有第一行星架和第二行星架，解决了现有的电动轮驱动系统为满足整个传动系统的动力匹配需要安装减速机构，而减速机构的降速增扭的作用必不可少，利用行星齿轮减速机构的行星架将动力输出，但存在机构复杂、转速低、噪声大等问题，并且为实现高传动比的目的，经常采用多级行星机构，导致体积大、每部分的尺寸和质量得不到保证的问题。
The utility model discloses a deceleration mechanism of an electric wheel drive system, which belongs to the technical field of electric wheel drive systems. A planetary gear is engaged, the side of the planetary gear close to the inner gear is meshed with the inner gear, the inside of the planetary gear is fixedly connected with a wheel shaft, and both sides of the surface of the wheel shaft are movably connected with a first planet carrier and The second planetary carrier solves the need to install a reduction mechanism in the existing electric wheel drive system to meet the power matching of the entire transmission system, and the role of the reduction mechanism for reducing speed and increasing torque is essential. The planetary carrier using the planetary gear reduction mechanism will Power output, but there are problems such as complex mechanism, low speed, high noise, etc., and in order to achieve high transmission ratio, multi-stage planetary mechanisms are often used, resulting in large volume, and the size and quality of each part cannot be guaranteed.
Description
Technical Field
The utility model relates to an electronic round of actuating system technical field, in particular to electronic round of actuating system's reduction gears.
Background
The electric driving system comprises an electric motor, an electric motor controller and a transmission mechanism, wherein some electric automobiles can directly drive wheels by the electric motor, and the electric driving mode of the electric automobiles can be basically divided into an electric motor central driving mode and an electric wheel driving mode.
Electric automobile with electronic round actuating system as power source promotes gradually, electronic round is a key assembly of electric automobile, and current electronic round actuating system needs to install reduction gears for satisfying whole transmission system's power matching, and reduction gears's speed reduction increases the effect of turning round absolutely, utilize planet carrier of planetary gear reduction gears to export power, nevertheless there are the mechanism complicacy, the rotational speed is low, big scheduling problem of noise, and for realizing the purpose of high drive ratio, often adopt multistage planetary mechanism, lead to bulky, size and the quality of every part can not get the assurance.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electronic round of actuating system's reduction gears, aim at solving current electronic round of actuating system and need install reduction gears for satisfying whole transmission system's power matching, and reduction gears's the effect of increasing the torsion is necessary, utilize planetary gear reduction gears's planet carrier with power take off, nevertheless there is the mechanism complicacy, the rotational speed is low, big scheduling problem of noise, and for realizing high drive ratio's purpose, often adopt multistage planetary mechanism, lead to bulky, the size and the quality of every part can not be guaranteed, thereby influence the problem of transmission effect.
The utility model relates to a realize like this, an electric wheel actuating system's reduction gears, including the ring gear, the inside engagement of ring gear has the sun gear, the surface engagement of sun gear has the planet wheel, the planet wheel is close to one side of ring gear and meshes with the ring gear mutually, the inside fixedly connected with shaft of planet wheel, the equal swing joint in both sides on shaft surface has first planet carrier and second planet carrier, the inside engagement of sun gear has the motor shaft, one side fixedly connected with output shaft of ring gear is kept away from to the second planet carrier.
In order to reach the fixed effect of wheel axle, as the utility model discloses an electronic wheel driving system's reduction gears is preferred, the quantity of planet wheel is three, and is between ring gear and sun gear including the triangle-shaped meshing, the fixed surface of shaft is connected with the bearing, the surface of bearing respectively with the inner wall fixed connection of first planet carrier and second planet carrier, the shaft pass through the bearing respectively with first planet carrier and second planet carrier swing joint.
In order to reach the effect that the motor shaft and sun gear of being convenient for are connected, as the utility model discloses an electric wheel actuating system's reduction gears is preferred, the one end that the sun gear was kept away from to the motor shaft runs through the inside of first planet frame and extends to the outside of first planet frame, the motor shaft is the integral key shaft, the inside fixedly connected with of sun gear and the spline housing that the motor shaft cooperation was used.
In order to reach the effect that first planet carrier and second planet carrier are convenient for to fix, as the utility model discloses an it is preferred that electronic round actuating system's reduction gears, looks fixed connection between first planet carrier and the second planet carrier, the inside swing joint of first planet carrier has the bolt, one side that the bolt is close to the second planet carrier extend to the inside of second planet carrier and with second planet carrier threaded connection.
In order to reach the effect that improves the bolt fastening steadiness, conduct the utility model discloses an electronic round actuating system's reduction gears is preferred, the quantity of bolt is a plurality of, and is the inside of triangle-shaped swing joint at first planet carrier.
In order to reach the effect that prevents axial displacement, as the utility model discloses a reduction gears is preferred for electronic round of actuating system, the equal fixedly connected with retaining ring in inside of first planet carrier and second planet carrier, the retaining ring is used with the bearing cooperation.
Compared with the prior art, the beneficial effects of the utility model are that:
the speed reducing mechanism of the electric wheel driving system has the advantages that power output by the external power input box body sequentially passes through the motor shaft, the sun gear and the planet gear to be transmitted to the inner gear ring and the inner gear ring is installed on a wheel, so that the power output by the inner gear ring drives the wheel to rotate through the output shaft.
Drawings
Fig. 1 is an overall structural view of a reduction mechanism of an electric wheel drive system of the present invention;
fig. 2 is a structural diagram of the inner gear ring of the utility model;
fig. 3 is an exploded view of the whole of the present invention;
fig. 4 is a front view of the ring gear of the present invention;
fig. 5 is a top view of the middle ring gear of the present invention.
In the figure, 1, an inner gear ring; 2. a sun gear; 3. a planet wheel; 4. a wheel axle; 5. a first carrier; 6. a second planet carrier; 7. a motor shaft; 8. an output shaft; 9. a bearing; 10. a spline housing; 11. a bolt; 12. and a retainer ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-5, the present invention provides a technical solution: a speed reducing mechanism of an electric wheel driving system comprises an inner gear ring 1, a sun wheel 2 is meshed inside the inner gear ring 1, a planet wheel 3 is meshed on the surface of the sun wheel 2, one side, close to the inner gear ring 1, of the planet wheel 3 is meshed with the inner gear ring 1, a wheel shaft 4 is fixedly connected inside the planet wheel 3, a first planet carrier 5 and a second planet carrier 6 are movably connected to two sides of the surface of the wheel shaft 4, a motor shaft 7 is meshed inside the sun wheel 2, and an output shaft 8 is fixedly connected to one side, far away from the inner gear ring 1, of the second planet carrier 6.
In this embodiment: the power output by the external power input box body is transmitted to the inner gear ring 1 through the motor shaft 7, the sun gear 2 and the planet gear 3 in sequence, and the inner gear ring 1 is installed on the wheel, so that the power output by the inner gear ring 1 drives the wheel to rotate through the output shaft 8.
As the utility model discloses a technical optimization scheme, the quantity of planet wheel 3 is three, and is between internal gear ring 1 and sun gear 2 at the triangle-shaped meshing, and shaft 4's fixed surface is connected with bearing 9, bearing 9's surface respectively with the inner wall fixed connection of first planet carrier 5 and second planet carrier 6, shaft 4 pass through bearing 9 respectively with first planet carrier 5 and second planet carrier 6 swing joint.
In this embodiment: through being three with the quantity of planet wheel 3, and be the triangle-shaped meshing between ring gear 1 and sun gear 2, can be convenient for planet wheel 3 rotate and then give second planet carrier 6 with power transmission around sun gear 2, thereby realize power take off, through setting up bearing 9, can avoid shaft 4 and first planet carrier 5 and second planet carrier 6 to produce the friction because of direct contact, and then cause the condition of part grinding, can improve its security and reliability, there is longer life.
As the utility model discloses a technical optimization scheme, sun gear 2's one end is kept away from to motor shaft 7 runs through the inside of first planet carrier 5 and extends to the outside of first planet carrier 5, and motor shaft 7 is the integral key shaft, and sun gear 2's inside fixedly connected with uses with the cooperation of motor shaft 7 spline housing 10.
In this embodiment: by arranging the spline housing 10, the connection between the motor shaft 7 and the sun gear 2 can be conveniently achieved, and the external power input box body can conveniently control the driving force of the motor shaft 7 so as to transmit the power to the sun gear 2.
As the utility model discloses a technical optimization scheme, looks fixed connection between first planet carrier 5 and the second planet carrier 6, the inside swing joint of first planet carrier 5 has bolt 11, bolt 11 be close to one side of second planet carrier 6 extend to the inside of second planet carrier 6 and with second planet carrier 6 threaded connection.
In this embodiment: by providing the bolt 11, the bolt 11 passes through the inside of the first carrier 5 and enters the inside of the second carrier 6, so that the first carrier 5 and the second carrier 6 can be fixedly connected, and the output shaft 8 can output power.
As the technical optimization scheme of the utility model, the quantity of bolt 11 is a plurality of, and is triangle-shaped swing joint in the inside of first planet carrier 5.
In this embodiment: through setting up the quantity of bolt 11 into a plurality of, and be the inside of triangle-shaped activity at first planet carrier 5, can improve the steadiness when fixed between first planet carrier 5 and second planet carrier 6 to strengthen fixed strength, make between first planet carrier 5 and the second planet carrier 6 difficult separation.
As the utility model discloses a technical optimization scheme, the equal fixedly connected with retaining ring 12 in inside of first planet carrier 5 and second planet carrier 6, retaining ring 12 uses with the bearing 9 cooperation.
In this embodiment: through setting up retaining ring 12, use through retaining ring 12 and bearing 9 cooperation, can reach fixing bearing 9's effect, prevent that bearing 9 both ends from taking place axial displacement's the condition, guaranteed bearing 9's normal use.
The working principle is as follows: firstly, the inner gear ring 1 and the wheel carrier are installed together, then the driving force of the motor shaft 7 is controlled by the power input box to drive the spline housing 10 to rotate, so that the spline housing 10 drives the sun gear 2 to rotate, the sun gear 2 drives the planet gear 3 to rotate under the meshing state of the planet gear 3 and the sun gear 2 and the inner gear ring 1, and the wheel shaft 4 rotates in the bearing 9, so that the planet gear 3 rotates around the sun gear 2 and transmits power to the second planet carrier 6, and the second planet carrier 6 outputs the power and drives the wheels to rotate through the output shaft 8.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A reduction gear of an electric wheel drive system, comprising an inner gear ring (1), characterized in that: the sun gear (2) is meshed inside the inner gear ring (1), the planet gear (3) is meshed on the surface of the sun gear (2), one side, close to the inner gear ring (1), of the planet gear (3) is meshed with the inner gear ring (1), the wheel shaft (4) is fixedly connected inside the planet gear (3), the first planet carrier (5) and the second planet carrier (6) are movably connected to the two sides of the surface of the wheel shaft (4), the motor shaft (7) is meshed inside the sun gear (2), and the output shaft (8) is fixedly connected to one side, far away from the inner gear ring (1), of the second planet carrier (6).
2. The reduction mechanism of an electric wheel drive system according to claim 1, characterized in that: the number of the planet gears (3) is three, the planet gears are meshed between the inner gear ring (1) and the sun gear (2) in a triangular mode, the surface of the wheel shaft (4) is fixedly connected with a bearing (9), the surface of the bearing (9) is fixedly connected with the inner walls of the first planet carrier (5) and the second planet carrier (6) respectively, and the wheel shaft (4) is movably connected with the first planet carrier (5) and the second planet carrier (6) through the bearing (9) respectively.
3. The reduction mechanism of an electric wheel drive system according to claim 1, characterized in that: one end, far away from the sun gear (2), of the motor shaft (7) penetrates through the inside of the first planet carrier (5) and extends to the outer side of the first planet carrier (5), the motor shaft (7) is a spline shaft, and a spline sleeve (10) matched with the motor shaft (7) for use is fixedly connected to the inside of the sun gear (2).
4. The reduction mechanism of an electric wheel drive system according to claim 1, characterized in that: first planet carrier (5) and second planet carrier (6) between looks fixed connection, the inside swing joint of first planet carrier (5) has bolt (11), bolt (11) are close to one side of second planet carrier (6) and extend to the inside of second planet carrier (6) and with second planet carrier (6) threaded connection.
5. The reduction mechanism of an electric wheel drive system according to claim 4, characterized in that: the number of the bolts (11) is a plurality, and the bolts are movably connected in the first planet carrier (5) in a triangular shape.
6. The reduction mechanism of an electric wheel drive system according to claim 2, characterized in that: the inner parts of the first planet carrier (5) and the second planet carrier (6) are fixedly connected with check rings (12), and the check rings (12) are matched with the bearing (9) for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221308510.1U CN217683074U (en) | 2022-05-27 | 2022-05-27 | Speed reducing mechanism of electric wheel driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221308510.1U CN217683074U (en) | 2022-05-27 | 2022-05-27 | Speed reducing mechanism of electric wheel driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217683074U true CN217683074U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221308510.1U Expired - Fee Related CN217683074U (en) | 2022-05-27 | 2022-05-27 | Speed reducing mechanism of electric wheel driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217683074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117419148A (en) * | 2023-11-29 | 2024-01-19 | 山东宏康机械制造有限公司 | An integrated high-speed planetary deceleration system |
| CN118654096A (en) * | 2024-08-19 | 2024-09-17 | 常州市曼多林精密机械科技股份有限公司 | A planetary reducer integrated with a motor |
-
2022
- 2022-05-27 CN CN202221308510.1U patent/CN217683074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117419148A (en) * | 2023-11-29 | 2024-01-19 | 山东宏康机械制造有限公司 | An integrated high-speed planetary deceleration system |
| CN118654096A (en) * | 2024-08-19 | 2024-09-17 | 常州市曼多林精密机械科技股份有限公司 | A planetary reducer integrated with a motor |
| CN118654096B (en) * | 2024-08-19 | 2024-12-31 | 常州市曼多林精密机械科技股份有限公司 | Planetary reducer integrated with motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221028 |