CN2835702Y - Transmission case - Google Patents

Abstract

A kind of gear box in electric tricycle, relate to a kind of speed change gear, it directly inserts the output shaft of motor in the casing, as casing one is equipped with driving gear on the motor output shaft, driving gear and driven gear engagement, power is passed to driving gear by motor, pass to driven gear by driving gear again, driven gear drives differential assembly and rotates two gears power being passed to electro-tricycle, finishes the transmission of power.Its good effect is that power is directly passed to gearbox by motor, and gearbox is directly passed to two wheels with power, has reduced power loss, has improved transmission efficiency, have simple in structure, be easy to make, advantage such as noise is little.

Description

Novel gearbox

Technical field

The utility model relates to a kind of electric motor car gearbox.

Background technique

At present, known electro-tricycle power transmission is to pass to sprocket wheel on the tricycle rear axle by motor by chain, and the transmission shaft that sprocket wheel drives in the back axle is passed to two wheels, finishes the transmission of power.Power is passed in the process that connects wheel by chain.Because the inherent defect of chain, power is easy to generate loss, causes power transmission efficiency not high, and is easy to generate noise.

Summary of the invention

Not high in order to overcome existing electro-tricycle transmission medium power transmission efficiency, be easy to generate the deficiency of noise, the utility model provides a kind of novel gearbox, and power is by the direct transfer gear box of motor, and gearbox is directly passed to two wheels with power by transmission shaft.

The technological scheme that its technical problem that solves the utility model adopts is: on the basis of known gear box, case lid, bearing support, bearing cap, differential assembly, bearing and various standard piece, motor output shaft is directly inserted gearbox, become of gearbox, driving gear is installed on the motor output shaft, the driven gear of driving gear drive installation on differential casing, driven gear drives the differential mechanism rotation, power is passed to two wheels, thereby finish the purpose of transmission of power.

The beneficial effects of the utility model are that power is directly passed to gearbox by motor, and gearbox is directly passed to two wheels with power and reduced power loss, and the utility model is simple in structure, are easy to make.Has the transmission efficiency height, advantage such as noise is little.

Below in conjunction with drawings and Examples the utility model is described further

Fig. 1 is the utility model and embodiment's a accompanying drawing

1 motor among the figure, 2 case lids, 3 casings, 4 bearings, 5 bearing caps, 6 driving gears, 7 driven gears, 8 bearing supports, 9 bearings, the 10 differentials assembly of growing up to be a useful person.

Embodiment

In accompanying drawing 1, casing (3) and case lid (2) are formed gear box, the output shaft of motor (1) directly inserts in the gearbox, driving gear (6) is contained on the motor output shaft, the motor output shaft left end is equipped with bearing (4), and there is bearing cap (5) bearing (4) outer end, and driven gear (7) is contained in differential and grows up to be a useful person on the assembly (10), bearing (9) and bearing support (8) are equipped with in the engagement of driving gear (6) and driven gear (7), differential assembly (10) two ends of growing up to be a useful person.

Claims (1)

1, a kind of gear box in electric tricycle mainly is made up of gear box, case lid, bearing support, bearing cap, differential assembly, bearing, it is characterized in that: motor output shaft directly inserts gear box, the output shaft of motor becomes of casing, and driving gear is housed on the motor output shaft.

Images