CN202167938U

CN202167938U - Half-shaft brushless motor for electric car

Info

Publication number: CN202167938U
Application number: CN201120276243XU
Authority: CN
Inventors: 施力江; 樊志群
Original assignee: XUZHOU HUANHAI ZHONGYI MOTOR INDUSTRY Co Ltd
Current assignee: XUZHOU HUANHAI ZHONGYI MOTOR INDUSTRY Co Ltd
Priority date: 2011-08-01
Filing date: 2011-08-01
Publication date: 2012-03-14
Anticipated expiration: 2021-08-01

Abstract

The utility model provides a half-shaft brushless motor for an electric car, belonging to a brushless electric car. The electric car is provided with a drive half shaft and a transmission half shaft; the drive half shaft is connected with a motor rear cover and a motor front cover through a first bearing and a second bearing of a rotating shaft; the motor rear cover is connected with an external hub of the motor through an external hub bearing; a motor stator is arranged in a cavity formed by the external hub of the and an external end cover of the motor; a motor rotor is arranged on the motor rotating shaft; the motor rotating shaft is respectively arranged on the motor front cover and the motor rear cover through the first bearing and the second bearing of the rotating shaft; a transmission gear is connected with the transmission half shaft through a transmission bearing and an external end cover bearing; the transmission half shaft is connected with the motor front cover through a transmission half shaft screw; a gear piece is connected on a gear shaft; and a magnetic steel is arranged between the motor stator and the motor rotor. The electric motor provided by the utility model has the advantages that the structure of the motor is compact, the gear reduction ratio is large, the motor power is large, the use quantity of magnetic steel is reduced as the motor adopts an inwards-coiling manner, and the overall service life of the electric motor is prolonged.

Description

Electric vehicle semiaxis formula brushless motor

Technical field

The utility model relates to a kind of electric vehicle motor, specifically is a kind of electric vehicle semiaxis formula brushless motor.

Background technology

The employed motor of present electric bicycle, electro-tricycle and battery-operated motor cycle roughly is divided into brushless slowspeed machine, brushless high speed planet reducing motor and side hanging differential speed motor; The defective of its existence is: it is not enough that slowspeed machine starts torsion, and spillage of material is bigger; The planetary reduction gear power of motor is less, inapplicable heavy-duty motor, and gear reduction is smaller, and torsion is less; Differential speed motor is applied on the electro-tricycle, installs and the equal inconvenience of maintenance.

The utility model content

The utility model provides a kind of electric vehicle brushless motor, solves present electric bicycle, electro-tricycle, and the torsion that the employed brushless motor of battery-operated motor cycle exists is not enough, power is less and the problem of installation and maintenance convenience.

The purpose of the utility model realizes with following scheme: this motor comprises jack shaft; Outer hub bearing; The outer hub of motor; The motor bonnet; The bonnet screw; Motor stator core; Motor windings; The motor protecgulum; The tooth case lid; The first outer end cap screw; The motor outer end cap; Travelling gear; Pinion; Drive bearing; The second outer end cap screw; The outer end cap bearing; Jackshaft; Plate gear; The gear shaft clutch shaft bearing; Gear shaft; Gear shaft second bearing; Magnet steel; Rotor; Machine shaft; The jackshaft screw; The rotating shaft clutch shaft bearing; Rotating shaft second bearing and jackshaft screw;

This motor has jack shaft and jackshaft; Described jack shaft is connected with the motor protecgulum with the motor bonnet with rotating shaft second bearing through the rotating shaft clutch shaft bearing, and the motor bonnet is connected through the outer hub of outer hub bearing and motor, and the outer hub of motor connects with the motor outer end cap through first outer end cap nail; In the cavity that hub and motor outer end cap constitute outside motor motor stator is housed; Motor windings is arranged on motor stator; The motor stator inner ring is equipped with rotor; Rotor is installed on the machine shaft, on the motor protecgulum and motor bonnet that machine shaft is installed in respectively through rotating shaft clutch shaft bearing and rotating shaft second bearing; The motor outer end cap is connected with travelling gear through the second outer end cap screw; Travelling gear is connected with jackshaft with the outer end cap bearing through drive bearing; Jackshaft is connected with the motor protecgulum through the jackshaft screw; Pinion is connected with the other end of machine shaft, pinion and plate gear engagement, and pinion, travelling gear and plate gear are positioned at the tooth case lid; Plate gear is connected on the gear shaft, and gear shaft is connected on motor protecgulum and the tooth case lid through gear shaft clutch shaft bearing and gear shaft second bearing; Between motor stator and rotor, magnet steel is arranged.

Beneficial effect, owing to adopted technique scheme, this motor has jack shaft and jackshaft; Described jack shaft connects mutually through screw with motor bonnet, motor protecgulum, the outer hub of motor; Motor stator is housed in the motor housing, and the stator inner ring is equipped with rotor, and rotor is installed in the forward and backward of motor internal respectively through bearing and covers; Jackshaft, tooth case lid connect respectively with screw with the motor protecgulum; Pinion is installed in the rotating shaft end; Shaft gear and plate gear are installed together; And on motor protecgulum and tooth case lid, like this, pinion and plate gear engagement form first order gear reduction through bearing fixing; Shaft gear forms second level gear reduction with the driven wheel engagement that relies on bearing fixing on jackshaft; The shell of being made up of outer hub of motor and outer end cap is installed in respectively on the jack shaft and jackshaft of motor through bearing, and outer end cap connects with driven wheel through screw, has so just reached the running driving function that final secondary gear deceleration and central shaft are exported.

Advantage: this kind electric motor structure compactness, gear reduction ratio is big, and motor power (output) is bigger, and overall performance is superior.In adopting, motor, reduced the use amount of magnet steel to greatest extent around formula; Realize the two-stage gear transmission mode of non-planetary structure, increased transmission speed ratio; Gear reduction is a full closeding state partly, and is equipped with moderate lubrication oil, has effectively increased the whole service life of motor.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the two-stage gear transmission structure sketch map of the utility model.

Among the figure: 1, jack shaft; 2, outer hub bearing; 3, the outer hub of motor; 4, motor bonnet; 5, bonnet screw; 6, motor stator; 7, motor windings; 8, motor protecgulum; 9, tooth case lid; 10, the first outer end cap screw; 11, motor outer end cap; 12, travelling gear; 13, pinion; 14, drive bearing; 15, the second outer end cap screw; 16, outer end cap bearing; 17, jackshaft; 18, plate gear; 19, gear shaft clutch shaft bearing; 20, gear shaft; 21, gear shaft second bearing; 22, magnet steel; 23, rotor; 24, machine shaft; 25, jackshaft screw; 26, rotating shaft clutch shaft bearing; 27, rotating shaft second bearing; 28, jackshaft screw.

Embodiment

Embodiment 1: this motor comprises jack shaft 1; Outer hub bearing 2; The outer hub 3 of motor; Motor bonnet 4; Bonnet screw 5; Motor stator 6; Motor windings 7; Motor protecgulum 8; Tooth case lid 9; The first outer end cap screw 10; Motor outer end cap 11; Travelling gear 12; Pinion 13; Drive bearing 14; The second outer end cap screw 15; Outer end cap bearing 16; Jackshaft 17; Plate gear 18; Gear shaft clutch shaft bearing 19; Gear shaft 20; Gear shaft second bearing 21; Magnet steel 22; Rotor 23; Machine shaft 24; Jackshaft screw 25; Rotating shaft clutch shaft bearing 26; Rotating shaft second bearing 27 and jackshaft screw 28.

This motor has jack shaft 1 and jackshaft 17; Described jack shaft 1 is connected with motor protecgulum 8 with motor bonnet 4 with rotating shaft second bearing 27 through rotating shaft clutch shaft bearing 26; Motor bonnet 4 is connected through the outer hub 3 of outer hub bearing 2 and motor, and the outer hub 3 of motor connects with motor outer end cap 11 through the first outer end cap screw 10; In the cavity that hub 3 and motor outer end cap 11 constitute outside motor motor stator 6 is housed; Motor windings 7 is arranged on motor stator 6; Motor stator 6 inner rings are equipped with rotor 23; Rotor 23 is installed on the machine shaft 24, on the motor protecgulum 8 that machine shaft 24 is installed in respectively through rotating shaft clutch shaft bearing 26 and rotating shaft second bearing 27 and the motor bonnet 4; Motor outer end cap 11 is connected with travelling gear 12 through the second outer end cap screw 15; Travelling gear 12 is connected with jackshaft 17 with outer end cap bearing 16 through drive bearing 14; Jackshaft 17 is connected with motor protecgulum 8 through jackshaft screw 25; Pinion 13 is connected with the other end of machine shaft 24, pinion 13 and plate gear 18 engagements, and pinion 13, travelling gear 12 and plate gear 18 are positioned at tooth case lid 9; Plate gear 18 is connected on the gear shaft 20, and gear shaft 20 is connected on motor protecgulum 8 and the tooth case lid 9 through gear shaft clutch shaft bearing 19 and gear shaft second bearing 21; Between motor stator 6 and rotor 23, magnet steel 22 is arranged.

This electric vehicle brushless motor mainly is made up of jack shaft 1 and jackshaft 17, motor casing part, brushless motor system and gear reduction system etc.; According to demand; This motor also can increase clutch apparatus at the end of gear reduction system, so that increase the wheel function of motor.

In Fig. 1, after the outer hub 3 of motor and motor outer end cap 11 are respectively charged into outer hub bearing 2, outer end cap bearing 16 and connect through the first outer end cap screw 10, be directly installed on jack shaft 1 and the jackshaft 17.

Motor stator part by motor stator core 6 and motor windings 7 are formed is installed with motor protecgulum 8 close-fittings; The rotor of forming by magnet steel 22, rotor core 23, machine shaft 24 partly through rotating shaft second bearing 27 location and installation on motor protecgulum 8; The motor bonnet 4 rotating shaft clutch shaft bearing 26 of packing into connects with motor protecgulum 8 through bonnet screw 5 again; Jack shaft 1 through jackshaft screw 25 and motor bonnet be linked together, whole motor is partly accomplished.

Pinion 13 is installed on the machine shaft, and jackshaft 17 is installed with motor protecgulum 8 through jackshaft screw 28; Plate gear 18 installs the back through gear second bearing 21 location with gear shaft 20, is installed on the motor protecgulum 8, and plate gear 18 and pinion 13 are meshed fully; After drive bearing 14, outer end cap bearing 16 are installed on the travelling gear 12, refill and be fitted on the jackshaft 17, and travelling gear 12 and gear shaft 20 are meshed fully; Tooth case lid 9 connects with motor protecgulum 8, and assembles through gear shaft clutch shaft bearing 19 and gear shaft 20, and the two-stage drive system of motor is accomplished.

Motor outer end cap 11 through the second outer end cap screw 15 and travelling gear 12 be linked together, whole motor accomplished.For guaranteeing the reliable of motor, require in the tooth case lid, to add an amount of lubricating oil.

The electric vehicle brushless motor comprises motor semiaxis, motor casing, interior around formula brushless electric machine, reducing gear; Motor stator connects with the motor front and rear cover respectively through the hot pressing mode close-fitting and through screw with motor housing again; The motor two-semiaxle connects with the motor front and rear covers with screw, and motor casing is again through the two ends of Bearing Installation at two-semiaxle; The rotor of being made up of iron core, magnet steel, machine shaft, pinion is installed in the forward and backward of motor respectively through bearing and covers; The tooth case lid connects with the motor protecgulum through screw, and gear shaft connects with flat key with plate gear, is installed in respectively on motor protecgulum and the tooth case lid through bearing and fixes; Driven wheel through bearing fixing on the motor right axle shaft and rely on screw to connect with the motor outer end cap again and the shaft gear engagement, to reach final deceleration, the central shaft output driving function that turns round.In addition, according to demand, this motor also can be at the terminal clutch apparatus that increases of gear reduction system, so that the wheel function of motor.For convenient this motor of installing can also be designed to the integrated wheel motor.

The two-stage gear reduction is formed the first order by pinion and plate gear respectively, and shaft gear and driven wheel are formed the second level; And the running through forming central shaft output behind the double reduction drives function.

Claims

1. electric vehicle semiaxis formula brushless motor, it is characterized in that: this motor has jack shaft and jackshaft; Described jack shaft is connected with the motor protecgulum with the motor bonnet with rotating shaft second bearing through the rotating shaft clutch shaft bearing, and the motor bonnet is connected through the outer hub of outer hub bearing and motor, and the outer hub of motor connects with the motor outer end cap through first outer end cap nail; In the cavity that hub and motor outer end cap constitute outside motor motor stator is housed; The motor stator inner ring is equipped with rotor; Rotor is installed on the machine shaft, on the motor protecgulum and motor bonnet that machine shaft is installed in respectively through rotating shaft clutch shaft bearing and rotating shaft second bearing; The motor outer end cap is connected with travelling gear through the second outer end cap screw; Travelling gear is connected with jackshaft with the outer end cap bearing through drive bearing; Jackshaft is connected with the motor protecgulum through the jackshaft screw; Pinion is connected with the other end of machine shaft, pinion and plate gear engagement, and pinion, travelling gear and plate gear are positioned at the tooth case lid; Plate gear is connected on the gear shaft, and gear shaft is connected on motor protecgulum and the tooth case lid through gear shaft clutch shaft bearing and gear shaft second bearing; Between motor stator and rotor, magnet steel is arranged.