CN206237249U - Planetary reduction gear starts motor - Google Patents

Abstract

Motor is started the utility model discloses a kind of planetary reduction gear, belongs to car engine start motor；Aim to provide a kind of small volume, lightweight, compact conformation starting motor.It includes motor, reducing gear, clutch, electromagnetic switch；Motor is by casing, stator component（4）, motor shaft（8）And rotor part（9）Constitute；Reducing gear is by gear ring frame（20）, output shaft（14）, planet carrier（12）, planetary gear（11）And central gear（10）Constitute；Clutch is by output shaft（14）, shifting slide gear（13）, sliding block（16）, shift fork（17）Constitute；Electromagnetic switch is by switch housing（1）, coil component（2）, fixed core（3）, dynamic iron core（18）, spring（19）Constitute.The utility model gearratio is big, the simpler compact, axial dimension of structure is small；It is a kind of starting motor for meeting Hyundai Motor narrow installation space requirement.

Description

Planetary reduction gear starts motor

Technical field

The utility model is related to a kind of direct current generator, more particularly to a kind of planetary reduction gear to start motor, belongs to car engine Machine starts motor.

Background technology

Automobile starting motor is generally made up of motor, reducing gear, clutch, electromagnetic switch.Because orthodox car rises The reducing gear of dynamic motor uses common multiple stage gear reduction mechanism and common clutch mostly, therefore there is structure pine Scattered, volume is big, it is impossible to meet the use requirement of Hyundai Motor.

The content of the invention

For drawbacks described above present in prior art, the utility model aims to provide a kind of small volume, lightweight, structure Compact planetary reduction gear starts motor.

To achieve these goals, the utility model uses following technical scheme：It includes motor, reducing gear, clutch Mechanism, electromagnetic switch；The motor is by casing, the stator component being fixed in the casing, the motor being supported in the casing Axle, the rotor part being fixed on the motor shaft are constituted；The reducing gear by be fixed in casing gear ring frame, be supported on machine Output shaft in shell, the planet carrier being fixed on the output shaft, the planetary gear being located on the planet carrier, it is fixed on motor shaft Central gear constitute；The cunning that the clutch is flexibly connected by the shifting slide gear being located on output shaft with the shifting slide gear Block, the shift fork for being hinged in casing and being connected with sliding block are constituted；The electromagnetic switch is by the switch housing, the fixation that are fixed on casing Coil component in the switch housing, the fixed core being fixed in the coil component, the dynamic iron core in coil component, it is located at Spring in the dynamic iron core is constituted；Dynamic iron core is flexibly connected with shift fork.

Brush carrier is fixed with motor shaft；Casing by housing, be fixed on the drive end bearing bracket of the housing left end, to be fixed on housing right The rear end cap held and closed is constituted.

Compared with the prior art, the utility model using planet-shaped reducing gear by adopting the above-described technical solution, replaced For traditional multiple stage gear reduction device, therefore larger gearratio can be not only realized, and also ensure reducing gear output shaft It is concentric with motor shaft, not only alleviate vibration but also effect reduces machine volume and weight, structure is extremely compact.Further, since subtracting Slidable output gear is increased in fast mechanism, therefore clutch and decelerator are organically integrated into an entirety, therefore Structure is compacter, further reduce volume.Because output shaft and motor shaft employ edge nested structure, therefore shorten whole The axial dimension of machine, can be fully able to meet the requirement of the small installing space of Hyundai Motor.

Brief description of the drawings

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

In figure：Switch housing 1, coil component 2, fixed core 3, stator component 4, brush carrier 5, rear end cap 6, housing 7, motor shaft 8th, rotor part 9, central gear 10, planetary gear 11, planet carrier 12, sliding sliding sleeve 13, output shaft 14, drive end bearing bracket 15, sliding block 16th, shift fork 17, dynamic iron core 18, spring 19, gear ring frame 20.

Specific embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：

As shown in Figure 1：Motor is supported on the casing by casing, the stator component being fixed in the casing 4, by bearing In motor shaft 8, the rotor part 9 that is fixed on the motor shaft constitutes.

Have the reducing gear being connected with motor shaft 8 in casing, the reducing gear by be fixed in casing gear ring frame 20, branch Hold the output shaft 14 in casing, the planet carrier 12 being fixed on the output shaft, four planetary gears being located on the planet carrier 11st, the central gear 10 being fixed on motor shaft 8 is constituted；The left end of output shaft 14 is supported on casing by bearing, right-hand member leads to Bearing is crossed to be supported on motor shaft 8.

There is clutch in casing, the clutch is lived by the shifting slide gear 13 being located on motor shaft 8 with the shifting slide gear The sliding block 16 of dynamic connection, the shift fork 17 for being hinged in casing and being connected with sliding block are constituted；There is inner spline gear on shifting slide gear 13（Figure In do not indicate）, the inner spline gear and the external spline teeth for being distributed in the right-hand member of motor shaft 8（Do not indicated in figure）It is adapted.

Electromagnetic switch is fixed with casing, the electromagnetic switch by be fixed on casing switch housing 1, be fixed on the switch housing In coil component 2, the fixed core 3, dynamic iron core 18 in coil component 2, dynamic positioned at this that is fixed in the coil component Spring 19 on iron core is constituted；Dynamic iron core 18 is flexibly connected with shift fork 17.

For the ease of installing brush, brush carrier 5 is fixed with motor shaft 8.

For the ease of manufacturing and assembling, casing uses fabricated structure：By housing 7, it is fixed on the front end of the housing left end Lid 15, the rear end cap 6 for being fixed on the right-hand member of housing 7 and being closed are constituted.

Operation principle：When electromagnetic switch is powered, dynamic iron core 18 is subject to the adhesive of the electromagnetic force of fixed core 3 to move right, and Shift fork 17 is driven to rotate clockwise simultaneously, the lower end of the shift fork drives output gear 13 to left movement, defeated by sliding block 16 immediately Go out gear 13 to be disengaged from the external splines on output shaft 14, output shaft 14 dallies；When relay electromagnetic switch section electricity, electromagnetism Power disappears, and spring 19 resets and drives shift fork 17 to rotate counterclockwise by dynamic iron core 18, and the lower end of the shift fork passes through sliding block immediately Output gear 13 is moved right, the internal spline of output gear 13 is engaged with the external splines on output shaft 14 for 16 drives, and with output The synchronous axial system of axle 14.

Claims (3)

1. a kind of planetary reduction gear starts motor, including motor, reducing gear, clutch, electromagnetic switch；It is characterized in that：Institute Motor is stated by casing, the stator component being fixed in the casing（4）, the motor shaft that is supported in the casing（8）, be fixed on this Rotor part on motor shaft（9）Constitute；

The reducing gear is by the gear ring frame that is fixed in casing（20）, the output shaft that is supported in casing（14）, be fixed on this Planet carrier on output shaft（12）, the planetary gear that is located on the planet carrier（11）, be fixed on motor shaft（8）On central gear （10）Constitute；

The clutch is by being located at output shaft（14）On shifting slide gear（13）The sliding block being flexibly connected with the shifting slide gear （16）, the shift fork that is hinged in casing and is connected with sliding block（17）Constitute；

The electromagnetic switch is by the switch housing that is fixed on casing（1）, the coil component that is fixed in the switch housing（2）, it is fixed Fixed core in the coil component（3）, positioned at coil component（2）In dynamic iron core（18）, spring in the dynamic iron core （19）Constitute；Dynamic iron core（18）With shift fork（17）It is flexibly connected.

2. planetary reduction gear according to claim 1 starts motor, it is characterised in that：Motor shaft（8）On be fixed with brush carrier （5）.

3. planetary reduction gear according to claim 1 starts motor, it is characterised in that：Casing is by housing（7）, be fixed on the shell The drive end bearing bracket of body left end（15）, be fixed on housing（7）Right-hand member and the rear end cap closed（6）Constitute.