CN211893537U - Electric vehicle walking driving mechanism - Google Patents

Abstract

The utility model discloses an electric motor car travel driving mechanism, the structure includes the motor and the shaft of transmission hookup, its characterized in that, the epaxial split type hookup seat that has cup jointed of wheel, the installation cavity has in the hookup seat, the power output shaft of motor stretches into the installation cavity, power output shaft couples through the gear train of locating in the installation cavity and shaft drive, the interior bevel gear has in the gear train, power input head couples through outer bevel gear and interior bevel gear drive, be provided with one-way clutch between interior bevel gear and gear train including. The walking driving mechanism has the advantages of good structure compactness and convenient arrangement, and can particularly adapt to the walking driving requirements of the electric tricycle.

Description

Electric vehicle walking driving mechanism

Technical Field

The utility model relates to an actuating mechanism especially relates to an actuating mechanism for driving electric motor car walking.

Background

The electric vehicle is a simple tool for riding instead of walk, and has been deeply inserted into the lives of ordinary people in society. The power of moving ahead of electric motor car is provided by storage battery, motor mostly, and some electric motor cars often are provided with manpowered mechanism to assist the manpower to drive the electric motor car to move ahead under the condition that the electric motor car lacks electricity.

Chinese patent document (publication number: 209492655U) discloses a novel gear transmission system for an electric vehicle, which comprises a driving shaft, a transmission shaft, a ratchet wheel, a pawl and a motor, wherein the driving shaft is a stepped shaft, one end of the driving shaft is provided with a driving bevel gear A and a bearing, the other end of the driving shaft is provided with only a bearing, a driving shaft protective shell is arranged outside the driving shaft, the transmission shaft is a stepped shaft, one end of the transmission shaft is provided with a driven bevel gear A, the other end of the transmission shaft is provided with a driving bevel gear B, the transmission shaft is externally provided with a transmission shaft protective shell, the ratchet wheel is externally provided with a ratchet wheel fixing sleeve, the driven bevel gear B is externally provided with a ratchet wheel shaft, a pawl shaft head is arranged between the pawl and a. The beneficial effects of the utility model are that the mechanism that manpower drive structure and motor drive structure combine makes safety and stability's manpower drive and motor drive independent mutually.

In the gear transmission system, the motor is directly sleeved on the wheel shaft, the structure of the manual transmission system is relatively complex, the matching precision requirement between corresponding transmission pairs is high, and the gear transmission system is inconvenient to install and maintain.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who needs the solution: the utility model provides an electric motor car travel driving mechanism, can realize manpower or motor drive electric motor car walking, compact structure nature is good, convenient the setting.

For solving the technical problem, the technical scheme of the utility model: the utility model provides an electric motor car travel driving mechanism, includes motor and the shaft of transmission hookup, its characterized in that, the epaxial split type hookup seat that has cup jointed of shaft, has the installation cavity in the hookup seat, and the power output shaft of motor stretches into the installation cavity, and power output shaft is linked through locating the gear train in the installation cavity and shaft transmission, has interior conical gear in the gear train, and power input head is linked through outer conical gear and interior conical gear transmission, is provided with one-way clutch between interior conical gear and the gear train.

The motor can drive the wheel shaft through the gear set, and the motor drive walking of the electric vehicle is realized. The power input head receives manual transmission, and transmits manual power to the gear set through the two conical gears and to the wheel shaft through the gear set, so that the electric vehicle is driven to run by the manual power. The one-way clutch can be an overrunning clutch or a ratchet and ratchet structure.

Furthermore, a hollow mounting part is formed at the position of the wheel shaft on the connecting seat, the mounting part protrudes to two opposite sides of the connecting seat, a driven large gear is sleeved in the mounting part on the wheel shaft, and the wheel shaft is supported in the mounting part through bearings positioned at two opposite sides of the driven large gear. The driven gearwheel is convenient to mount by being provided with the mounting part, and the stability of the wheel shaft after passing through the mounting part is good.

Furthermore, the gear set comprises a middle driven gear and a middle main gear which are coaxially arranged, the diameter of the middle main gear is smaller than that of the middle driven gear, a driving gear on the power output shaft is meshed with the middle driven gear, and the middle main gear is meshed with the driven large gear. The provided intermediate main gear and intermediate driven gear can realize the change of transmission speed ratio, so that the driving stability of the wheel axle is good.

Furthermore, the inner conical gear and the middle driven gear are coaxially arranged, and the one-way clutch is arranged in the inner conical gear. The inner conical gear, the intermediate driven gear and the intermediate main gear are coaxially arranged together, so that the whole structure is compact, and the transmission of two kinds of power is facilitated.

Furthermore, a mounting seat is arranged on the outer side of the connecting seat, the mounting seat is communicated with the connecting seat, the outer conical gear is positioned in the mounting seat, the outer conical gear is meshed with the inner conical gear at the position where the mounting seat is communicated with the connecting seat, the power input head is inserted in the mounting seat and extends out of the outer side of the mounting seat, and the power input head is rotatably supported in the mounting seat through a bearing. Through setting up the mount pad to outer conical tooth wheel setting is in this mount pad, can provide the protection for interior outer conical tooth wheel, and compact structure nature is good.

Furthermore, the end face of the motor is fixedly connected to the outer side face of the connecting seat through a fixing bolt. The motor is directly fixed on the connecting seat, so that the connecting stability of the motor is good, and the motor can drive the wheel shaft stably.

Compared with the prior art, the utility model discloses the beneficial effect who has: the split type connecting seat is arranged, and the gear set for transmission is arranged in the connecting seat, so that the transmission requirement on the wheel shaft can be well met. The requirement on the matching degree between the gear sets and between the bevel gears is not too high, so that the installation precision between the gear sets and the bevel gears is relatively low, and the assembly is convenient. The gear set is convenient to arrange in the connecting seat, and the arrangement stability of the gear set in the connecting seat can be ensured. Lubricating oil can be injected into the connecting seat, and the smoothness of the work of the gear set can be effectively guaranteed. Be provided with power input head and can accept manpower drive, and through setting up one-way clutch, and make when motor drive electric motor car moves ahead, power can not transmit on the manpower drive mechanism for the stability of pedal is good.

Drawings

Fig. 1 is a reference diagram showing a state of use of the electric vehicle travel drive mechanism.

Fig. 2 is a perspective view of the traveling drive mechanism of the electric vehicle.

Fig. 3 is a structural view of the electric vehicle travel driving mechanism without the coupling seat.

Fig. 4 is a matching structure diagram of a gear set in the electric vehicle travel driving mechanism.

Detailed Description

The electric vehicle walking driving mechanism is used for driving the electric vehicle to move forwards, can be driven by manpower and can also be driven by a motor.

The structure of the electric vehicle walking driving mechanism comprises a motor 4 and a wheel shaft 8 which are in transmission connection, wherein a walking wheel is arranged at the end part of the wheel shaft 8, and the motor 4 drives the wheel shaft 8 to enable the walking wheel to move forwards. The electric vehicle walking driving mechanism can be arranged at the position of a rear side chassis of an electric tricycle, a connecting seat 7 is fixed at the position, the connecting seat 7 is of a split structure and is formed by buckling two half cover-shaped bodies together, and a mounting cavity is arranged in the connecting seat 7. The wheel shaft 8 penetrates through the connecting seat 7, and two ends of the wheel shaft 8 extend out to two opposite sides of the connecting seat 7. The motor 4 is arranged on the outer side of the connecting seat 7, and the end face of the motor 4 is fixedly attached to the side face of the connecting seat 7 through a fixing bolt. The power output shaft of the motor 4 extends into the installation cavity, and the power output shaft is in transmission connection with the wheel shaft 8 through a gear set arranged in the installation cavity. An internal bevel gear 16 is provided on the gear train, the internal bevel gear 16 being adapted to receive manual drive.

The arrangement of the human power transmission mechanism assembled with the motor transmission mechanism is shown in fig. 1. The manual transmission mechanism comprises a pedal 1 and a transmission rod 3, and the pedal 1 is in transmission connection with the transmission rod 3 through a reversing transmission mechanism 2. Referring to fig. 2, 3 and 4, the transmission rod 3 is in transmission connection with a power input head 9 through a universal cross-shaped coupling head 5, the power input head 9 is arranged on the outer side of the gear set, and the power input head 9 is meshed with an inner conical gear 16 through an outer conical gear 15. To achieve separation of motor drive from manual drive, a one-way clutch is provided within the inner bevel gear 16. When the motor 4 drives the wheel shaft 8 to rotate, the inner conical gear 16 is not moved, and the power of the motor 4 is not transmitted to the pedal 1. When driven by manual force, the outer bevel gear 15 rotates and the inner bevel gear 16 drives the wheel shaft 8 to rotate through the gear train.

The coupling seat 7 is formed with hollow mounting portions 71 at the positions of the wheel shafts 8, the mounting portions 71 protrude to opposite sides of the coupling seat 7, and the mounting portions 71 have a bell shape. A driven gearwheel 10 is fixedly sleeved on the wheel shaft 8 in the circumferential direction of the mounting part 71, and the wheel shaft 8 is supported in the mounting part 71 through bearings 11 positioned at two opposite sides of the driven gearwheel 10.

The gear train includes an intermediate driven gear 12 and an intermediate main gear 13 which are coaxially disposed, the intermediate main gear 13 having a diameter smaller than that of the intermediate driven gear 12, the intermediate driven gear 12 and the intermediate main gear 13 being coupled to a gear shaft 17, and an inner bevel gear 16 being disposed at an end of the gear shaft 17. A driving gear 14 on the power output shaft is meshed with the intermediate driven gear 12, and an intermediate main gear 13 is meshed with the driven large gear 10. The gear shaft 17 is supported in the coupling seat 7 by means of a bearing 11, and the power take-off shaft on the motor 4 is also supported in the coupling seat 7 by means of a bearing 11.

The outer side of the connecting seat 7 is provided with an installation seat 6, the installation seat 6 is in a cover shape, and the installation seat 6 is fastened, connected and fixed on the outer side surface of the connecting seat 7 through a plurality of fixing bolts. The inner end of the power input head 9 is inserted in the mounting seat 6, the outer conical gear 15 is arranged in the mounting seat 6, and the power input head 9 extends out of the mounting seat 6. The mount 6 communicates with the coupling seat 7, the outer bevel gear 15 meshes with the inner bevel gear 16 at a position where the mount 6 communicates with the coupling seat 7, and the power input head 9 is rotatably supported in the mount 6 through the bearing 11.

Claims (6)

1. The utility model provides an electric motor car travel driving mechanism, includes motor and the shaft of transmission hookup, its characterized in that, the epaxial split type hookup seat that has cup jointed of shaft, has the installation cavity in the hookup seat, and the power output shaft of motor stretches into the installation cavity, and power output shaft is linked through locating the gear train in the installation cavity and shaft transmission, has interior conical gear in the gear train, and power input head is linked through outer conical gear and interior conical gear transmission, is provided with one-way clutch between interior conical gear and the gear train.

2. The traveling drive mechanism for electric vehicles according to claim 1, wherein the coupling seat is formed with hollow mounting portions at the positions of the wheel shafts, the mounting portions protrude to opposite sides of the coupling seat, the wheel shafts are received with the driven large gears in the mounting portions, and the wheel shafts are supported in the mounting portions by bearings at opposite sides of the driven large gears.

3. The electric vehicle travel drive mechanism of claim 2, wherein the gear train comprises an intermediate driven gear and an intermediate main gear coaxially arranged, the intermediate main gear has a smaller diameter than the intermediate driven gear, a driving gear on the power take-off shaft is engaged with the intermediate driven gear, and the intermediate main gear is engaged with the driven large gear.

4. The electric vehicle travel drive mechanism of claim 3, wherein the internal bevel gear is coaxially disposed with the intermediate driven gear, and the one-way clutch is disposed within the internal bevel gear.

5. The traveling drive mechanism for electric vehicles according to any one of claims 1 to 4, wherein a mounting seat is provided on an outer side of the coupling seat, the mounting seat communicates with the coupling seat, the outer bevel gear is located in the mounting seat, the outer bevel gear meshes with the inner bevel gear at a position where the mounting seat communicates with the coupling seat, the power input head is inserted into the mounting seat and extends to an outer side of the mounting seat, and the power input head is rotatably supported in the mounting seat through a bearing.

6. The electric vehicle travel drive mechanism according to any one of claims 1 to 4, wherein an end surface of the motor is fixedly coupled to an outer side surface of the coupling seat by a fixing bolt.

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