CN211624100U

CN211624100U - Planetary reduction gearbox of electric motorcycle

Info

Publication number: CN211624100U
Application number: CN202020162866.3U
Authority: CN
Inventors: 高翔; 汪攀峰; 贾旭军; 夏震
Original assignee: Chongqing Guozhou Machinery Manufacturing Co ltd
Current assignee: Chongqing Guozhou Machinery Manufacturing Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-10-02
Anticipated expiration: 2030-01-22

Abstract

The utility model provides an electric motorcycle planet reduction box, which belongs to the technical field of electric motorcycles, mainly comprising a box body, an input shaft and an output shaft which are rotationally connected with the box body, a water cooling circulation system which is in meshing transmission with the output shaft is arranged in the box body, the water cooling circulation system comprises a water pump driving gear and a water pump output assembly, the water pump output assembly comprises a water pump output shaft and a water pump output gear, the water pump driving gear is fixedly connected with the output shaft, the water pump output gear is fixedly connected with the water pump output shaft, the water pump output shaft is rotationally connected with the box body, one end of the water pump output shaft is fixedly provided with an impeller, the other end is fixedly provided with the water pump output gear, the water pump output gear is in meshing transmission with the water pump driving gear, a water, the technical problem that the working temperature of the reduction gearbox is higher is solved, and the heat dissipation effect of the speed reducer is effectively improved.

Description

Planetary reduction gearbox of electric motorcycle

Technical Field

The utility model relates to an electric motorcycle car technical field, concretely relates to electric motorcycle car planet reducing gear box.

Background

In recent years, green and innovative development is developed as a development theme advocated by various countries in the world, in the field of vehicles, the development of the electric motorcycle is a trend, electric power is used as a power source, a fuel engine is replaced by an electric motor, zero emission, low noise and no pollution can be realized, a great amount of increasingly exhausted petroleum energy can be saved, and the electric motorcycle becomes a main trend of green development in the future along with the increasingly mature and development of the power battery technology of the electric motorcycle.

The power system is used as the core of the electric motorcycle and generally comprises a power supply, a motor controller, a speed reducer and other devices, wherein the motor is connected with a two-stage gear transmission reduction box and then connected with a two-stage gear transmission driving box to realize driving and speed reduction. In the existing electric motorcycle, the working temperature of the reduction gearbox is generally higher, and particularly, a transmission system with a compact structure has poor heat dissipation effect, so that the viscosity of lubricating oil is reduced, the fatigue life of the reduction gearbox is shortened, the running performance of the whole motorcycle is affected, and the performance and the service life of adjacent devices such as a motor, a motor controller and the like can be affected due to the overhigh working temperature of the reduction gearbox.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough and provide an electric motorcycle car planet reducing gear box that exists among the prior art, solve the technical problem that the reducing gear box operating temperature mentioned among the background art is on the high side.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a planetary reduction gearbox of an electric motorcycle comprises a box body, an input shaft and an output shaft which are rotationally connected with the box body, a water cooling circulation system which is in meshing transmission with the output shaft is arranged in the box body and comprises a water pump driving gear and a water pump output assembly, the water pump output assembly comprises a water pump output shaft and a water pump output gear, the water pump drive gear is fixedly connected with the output shaft, the water pump output gear is fixedly connected with a water pump output shaft, the water pump output shaft is rotationally connected with the box body, one end of the water pump output shaft is fixedly provided with an impeller, the other end of the water pump output shaft is fixedly provided with a water pump output gear, the water pump output gear is in meshing transmission with the water pump driving gear, a water cooling circulation cavity matched with the impeller is formed in the box body, the water cooling circulation cavity is provided with a water inlet and a water outlet, and the impeller is located in the water cooling circulation cavity.

Compared with the prior art, the utility model discloses following beneficial effect has: the planetary reduction gearbox is used for driving the water cooling circulation system to work by utilizing the power of the planetary reduction gearbox, so that the heat dissipation effect of the reduction gearbox is improved, the working temperature of the reduction gearbox is effectively reduced, and resources are effectively saved; the water cooling circulation system is arranged in the planetary reduction gearbox as a whole, and the integral assembly structure design ensures that the reduction gearbox has more compact structure, is convenient to use and effectively saves the occupied space.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of the embodiment of the present invention;

FIG. 3 is a left side view of FIG. 2;

fig. 4 is a rear view of fig. 1.

Reference numerals: the water pump water cooling circulation device comprises a box body 1, an input shaft 6, a sun gear 610, an output shaft 12, a planet gear 5, a planet shaft 4, a large gear ring 2, a front input planet carrier 3, a rear output planet carrier 10, a water pump driving gear 11, a water pump output assembly 15, a water pump output gear 151, a water pump output shaft 152, an impeller 8, a water pump idle gear 14, a water seal static ring 7, a water seal dynamic ring 9, a belt pulley 13 and a water cooling circulation cavity 801.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 to 4, an embodiment of the present invention provides an electric motorcycle planetary reduction gearbox, which includes a box body 1, an input shaft 6 and an output shaft 12 rotatably connected to the box body 1, a water cooling circulation system engaged with the output shaft 12 is provided in the box body 1, further, the water cooling circulation system includes a water pump driving gear 11 and a water pump output assembly 15, the water pump driving gear 11 is fixedly connected to the output shaft 12, the water pump output assembly 15 includes a water pump output shaft 152 and a water pump output gear 151, the water pump output gear 151 is fixedly connected to the water pump output shaft 152, the water pump output shaft 152 is rotatably connected to the box body 1, preferably, the water pump output shaft 152 is rotatably connected to the box body 1 through a bearing, an impeller 8 is fixedly provided at one end of the water pump output shaft 152, the water pump output gear 151 is fixedly provided at the other end, the water pump output gear 151, the water cooling circulation cavity 801 matched with the impeller 8 is formed in the box body 1, the water cooling circulation cavity 801 is provided with a water inlet and a water outlet, the impeller 8 is located in the water cooling circulation cavity 801, power of the planetary reduction gearbox is effectively utilized to drive the water cooling circulation system to work so as to improve the heat dissipation effect of the reduction gearbox, when the water cooling circulation box is used, the water inlet and the water outlet can be respectively connected into a cooling liquid circulation system of the motorcycle, cooling liquid flows to the water outlet from the water inlet under the driving of the impeller 8 and is continuously circulated, the heat dissipation effects of the planetary reduction gearbox, the motor and the electric control are effectively improved, the performance and the service life of a power system of the electric motorcycle are improved, the water cooling circulation system is arranged in the planetary reduction gearbox to be connected into a whole, and.

In the existing electric motorcycle, a motor is directly connected with a two-stage gear transmission reduction gearbox to realize driving and speed reduction, however, an input shaft and an output shaft of the two-stage gear transmission reduction gearbox connected with a box body are mutually parallel shafts which are not on the same axis, so that coaxial input and output cannot be realized, the structure is not compact, the occupied space is larger, and the space layout of a vehicle is seriously influenced, in some embodiments, the reduction gearbox further comprises a planet component, the planet component comprises a planet wheel 5 and a planet shaft 4, a large gear ring 2 is fixedly arranged in the box body 1, one end of an input shaft 6 extends out of the box body 1, the other end of the input shaft 6 is positioned in the box body 1 and is fixedly provided with a sun wheel 610, the sun wheel 610 is externally meshed with the planet wheel 5, the planet wheel 5 is internally meshed with the large gear ring 2, the axle center of the planet wheel 5 is rotatably connected with the planet shaft 4, one end, the rear output planet carrier 10 is fixedly connected with one end of the output shaft 12, the other end of the output shaft 12 extends out of the box body 1, and the input shaft 6 and the output shaft 12 are arranged coaxially, so that coaxial input and output of the reduction gearbox are kept. Preferably, according to actual need, can be connected 1 input tang of box and the cooperation of motor front end housing, the tang circle is centering, input shaft 6 can be connected through spline and the cooperation of motor spline, output shaft 12 can be through the conical surface, the semicircle key is connected with belt pulley 13 cooperation, input shaft 6 and output shaft 12 accessible bearing rotate with box 1 and are connected, this reduction gear is still effectual avoided because of the restriction of two-stage gear reduction ratio, need increase motor power to reach the condition of required driving torque, thereby make the electric energy effectively utilized, the same electric quantity, the mileage of continuing to go can avoid receiving the influence.

In some embodiments, in order to make the tank 1 more compact, the water pump driving gear 11 is externally engaged with a water pump idle gear 14, and the water pump idle gear 14 is externally engaged with the water pump output gear 151, so that the structure is more compact through gear transmission. In order to effectively seal the water cooling circulation cavity 801, the impeller 8 is provided with the water seal movable ring 9, the water cooling circulation cavity 801 is provided with the water seal static ring 7 corresponding to the water seal movable ring 9, and the water seal movable ring 9 and the water seal static ring 7 are compressed tightly to ensure that the water cooling circulation cavity 801 has a better sealing effect.

In some embodiments, in order to make the output shaft 12 operate more stably, the other end of the planet shaft 4 is rotatably connected with the front input planet carrier 3, the front input planet carrier 3 and the rear output planet carrier 10 are fixedly connected through a fixing pin, so that the front input planet carrier 3 and the rear output planet carrier 10 are driven by the planet shaft 4 and rotate synchronously, the transmission efficiency and the torque of the output shaft 12 are effectively improved, and meanwhile, the stress of the planet shaft 4 is uniform, and the noise is effectively reduced.

The utility model discloses a power transmission route does, input shaft 6 is direct to be connected with the motor and obtains power input, input shaft 6 is through epaxial even sun gear 610 as an organic whole and planet wheel 5 meshing transmission, planet wheel 5 meshes with the bull gear 2 of fixing on box 1, planet wheel 5 is connected with planet axle 4 and gives planet axle 4 with power transmission, planet axle 4 gives preceding input planet carrier 3 and back output planet carrier 10 with power transmission, back output planet carrier 10 gives output shaft 12 with power transmission, realize power transmission and speed reduction through above meshing relation. In water cooling circulation system, output shaft 12 drives water pump drive gear 11 rotatory, water pump drive gear 11 drives water pump idler gear 14 rotatory, water pump idler gear 14 drives water pump output shaft 152 rotatory, water pump output shaft 152 drives impeller 8 rotatory, impeller 8 stirs the water in the box 1, water is followed impeller 8 and is rotatory, flow out from the delivery port in the water cooling circulation cavity 801 along box 1, and simultaneously, the follow water inlet that water lasts pours into, water inlet and delivery port can be connected respectively in the coolant liquid circulation system of motorcycle, thereby let the hydrologic cycle cooling constantly, realize the operating temperature who reduces the reducing gear box through above structure.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an electric motorcycle car planet reducing gear box, includes box (1), input shaft (6) and output shaft (12) of being connected with box (1) rotation, its characterized in that: the water cooling circulation system is arranged in the box body (1) and is in meshed transmission with the output shaft (12), the water cooling circulation system comprises a water pump driving gear (11) and a water pump output assembly (15), the water pump output assembly (15) comprises a water pump output shaft (152) and a water pump output gear (151), the water pump driving gear (11) is fixedly connected with the output shaft (12), the water pump output gear (151) is fixedly connected with the water pump output shaft (152), the water pump output shaft (152) is rotatably connected with the box body (1), one end of the water pump output shaft (152) is fixedly provided with an impeller (8), the other end of the water pump output gear (151) is fixedly provided with the water pump output gear (151), the water pump output gear (151) is in meshed transmission with the water pump driving gear (11), a water cooling circulation cavity (801) matched with the, the water cooling circulation cavity (801) is provided with a water inlet and a water outlet, and the impeller (8) is located in the water cooling circulation cavity (801).

2. The planetary reduction gearbox of the electric motorcycle as claimed in claim 1, wherein: still include the planet subassembly, the planet subassembly includes planet wheel (5) and planet axle (4), box (1) internal stability is equipped with big ring gear (2), box (1) is stretched out to the one end of input shaft (6), the other end of input shaft (6) is located box (1) and has set firmly sun gear (610), sun gear (610) and planet wheel (5) external toothing, planet wheel (5) and big ring gear (2) internal toothing, planet wheel (5) axle center rotation is connected planet axle (4), the one end of planet axle (4) is still rotated and is connected with back output planet carrier (10), the one end fixed connection of back output planet carrier (10) and output shaft (12), box (1) is stretched out to the other end of output shaft (12), input shaft (6) and output shaft (12) coaxial line position setting.

3. The planetary reduction gearbox of the electric motorcycle as claimed in claim 1 or 2, wherein: the water pump driving gear (11) is externally meshed with a water pump idler gear (14), and the water pump idler gear (14) is externally meshed with a water pump output gear (151).

4. The planetary reduction gearbox of the electric motorcycle as claimed in claim 1 or 2, wherein: the impeller (8) is provided with a water seal moving ring (9), and the water cooling circulation cavity (801) is provided with a water seal static ring (7) corresponding to the water seal moving ring (9) so as to seal the water cooling circulation cavity (801).

5. The planetary reduction gearbox of the electric motorcycle as claimed in claim 2, wherein: the other end of planet axle (4) rotates and is connected with preceding input planet carrier (3), preceding input planet carrier (3) and back output planet carrier (10) pass through fixed pin fixed connection.

6. The planetary reduction gearbox of the electric motorcycle as claimed in claim 2 or 5, wherein: the planetary assemblies are multiple and evenly distributed along the circumferential direction of the sun wheel (610).