CN201263108Y

CN201263108Y - Starting motor for car engine

Info

Publication number: CN201263108Y
Application number: CNU2008203019584U
Authority: CN
Inventors: 曹登棣; 易礼杰; 唐兴伟; 袁刚强
Original assignee: Chengdu Huachuan Electric Parts Co Ltd
Current assignee: Chengdu Huachuan Electric Parts Co Ltd
Priority date: 2008-08-28
Filing date: 2008-08-28
Publication date: 2009-06-24
Anticipated expiration: 2018-08-28

Abstract

The utility model discloses an automobile engine-used starting motor with small axial installation size, which comprises a front cover, a one-way clutch, a stator and a rotor; a driving wheel on the output shaft of the one-way clutch serves as the output end of the motor; the rotor rotates around a revolving shaft which is connected with an idler-gear reducer by an output shaft. According to the technical proposal, the rotor is connected with the one-way clutch by the idler-gear reducer, thereby saving the axial installation space to be occupied by a planet gear reducer and finally obtaining low revolution speed and high torque by two-grade speed reduction. Furthermore, the axial size of the automobile engine-used starting motor is short so that not only the installation requirement that the motor occupies limited space is met, but also the starting requirement that the automobile motor has a large starting load is met, thus reducing the axial installation size of the whole motor. The automobile engine-used starting motor is as compact as possible in the axial size and is particularly applicable to an automobile motor with a limited installation space.

Description

The automobile engine actuating motor

Technical field

The utility model relates to the actuating motor that uses on a kind of automobile, especially a kind of excitation slowdown type actuating motor.

Background technology

At present, the automobile engine actuating motor is a direct current machine, and it can be divided into two kinds of direct driving motor and reducing motors on the structure, and under the identical situation of volume or power, direct driving motor output speed height, moment are low; The reducing motor output speed is low, moment is high.Automobile engine adopts a plurality of housing structures usually, its starting load is bigger, rotor is directly by directly the driving actuating motor and can not satisfy the engine start requirement usually of isolator output torque, so automobile engine adopts the slowdown type actuating motor that output speed is low, moment is big with actuating motor more.

Development along with China's automobile industry, motorcar engine structural configuration trend is compact, the starter that can allow takes up room limited, the planetary gear deceleration device of engagement actuating motor and rotor are all on same axis in existing, cause the axial dimension of motor longer, be difficult to satisfy installation requirement sometimes.

The utility model content

In order to overcome existing automobile engine with the bigger deficiency of the axial installation dimension of actuating motor, technical problem to be solved in the utility model provides the little automobile engine actuating motor of a kind of axial installation dimension.

The technical scheme that its technical problem that solves the utility model adopts is: the automobile engine actuating motor comprises protecgulum, isolator, stator, rotor; Driving wheel on the output shaft of isolator is as the output of motor; Rotor rotates around the axis, and rotating shaft is connected by the idle pulley deceleration device with output shaft.

The beneficial effects of the utility model are: the prior art rotor is connected by the planetary gear deceleration device with isolator, deceleration device and rotor are on same axis, and make whole motor bigger in axial installation dimension, the technical solution of the utility model connects rotor and isolator by the idle pulley deceleration device, saved the axial installing space that the planetary gear deceleration device will take, pass through double reduction, the final acquisition slow-speed of revolution, high torque (HT), and its axial dimension is short, can satisfy the installation requirement that engine takies the confined space, can satisfy the big start request of car engine start load again, thereby shortened whole motor in axial installation dimension, the utility model is also compact as far as possible on radial dimension, especially is fit to the limited automobile engine of installing space and uses.

Description of drawings

Fig. 1 is the schematic diagram of actuating motor in the prior art.

Fig. 2 is the structural representation of actuating motor of the present utility model.

Be labeled as protecgulum 1, isolator 2, internal gear 3, sliding bearing 4 among the figure, planetary gear 5, oiliness bearing 6, stator 7, rotor 8, planet wheel spindle 9, oiliness bearing 10, pivoted arm output shaft 11, oiliness bearing 12, disk 13, gear 14, rotating shaft 15, electromagnetic switch 16, brush cover assembly 18, shell 19, driving wheel 20, driving wheel 21, idle pulley 22, driven pulley 23, idler shaft 24, output shaft 25.

Embodiment

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

As shown in Figure 1, engagement actuating motor in existing reducing motor is generally, it comprises protecgulum 1, isolator 2, stator 7 and rotor 8, the rotation of electromagnetic switch 16 control rotors 8, rotor 8 is positioned at the center of stator 7, be provided with the planetary gear deceleration device between the rotating shaft 15 of isolator 2 and rotor 8, this planetary gear deceleration device comprises internal gear 3, pivoted arm output shaft 11 and three planetary gears 5, and internal gear 3 centers are embedded with sliding bearing 4; Pivoted arm output shaft 11 is the gear shaft of middle part band gear 14, and pivoted arm output shaft 11 1 ends are disk 13, uniform on the disk 13 three planet wheel spindles 9 is housed, and the center of disk 13 is embedded with oiliness bearing 10; The center of three planetary gears 5 then is embedded with oiliness bearing 6, and the other end of pivoted arm output shaft 11 is installed on the protecgulum 1 after passing the endoporus of sliding bearing 4 and isolator 2, the gear 14 at pivoted arm output shaft 11 middle parts and 15 engagements of the unidirectional gear ring of isolator 2.Pivoted arm output shaft 11 supports rotation by the oiliness bearing in sliding bearing 4 and the protecgulum 1 12, and the driving wheel 20 on isolator 2 output shafts is as the output of whole actuating motor, rotating shaft 15 concentrics of it and rotor 8.

The rotating shaft 15 of rotor 8 is and planetary gear 5 meshed gears axles that one end is supported by oiliness bearing 10.When the electromagnetic switch 16 of motor is closed, the conducting direct current, rotor 8 rotations, after the planetary gear deceleration device slows down,, promptly promptly slow down through the planetary gear deceleration device at motor internal by the 20 output torques of the driving wheel on the isolator 2, changed the motor output characteristic, thereby satisfy car engine start and installation requirement, but because planetary gear deceleration device and rotor 8 all on same axis, have caused the axial dimension of motor longer.

As shown in Figure 2, automobile engine actuating motor of the present utility model comprises protecgulum 1, isolator 2, stator 7, rotor 8; Driving wheel 20 on the output shaft 25 of isolator 2 is as the output of motor; Rotor 8 15 rotates around the shaft, and rotating shaft 15 is connected by the idle pulley deceleration device with output shaft 25.Aforementioned schemes connects rotor and isolator by the idle pulley deceleration device, saved the axial installing space that the planetary gear deceleration device will take, obtain the slow-speed of revolution, high torque (HT) simultaneously, shorten axial dimension, the installation requirement that engine takies the confined space can be satisfied, the big start request of car engine start load can be satisfied again.

Consider that described starter should reduce the installing space size as far as possible in the big start request of sufficient car engine start load, therefore the idle pulley deceleration device should adopt double reduction, this idle pulley deceleration device comprise driving wheel 21, idle pulley 22 and with driven pulley 23, utilize driving wheel 21 and idle pulley 22 engagements, idle pulley 22 is realized double reduction with driven pulley 23 engagements; Driving wheel 21 is arranged in the rotating shaft 15, and idle pulley 22 is arranged in the protecgulum 1 by idler shaft 24, and driven pulley 23 is arranged on the output shaft 25.

In order to guarantee that the idle pulley deceleration device obtains enough support strengths and saves installation dimension simultaneously, be provided with shell 19, protecgulum 1 is connected with shell 19, shell 19 is connected with stator 7, make motor and deceleration device form an integral body, rotating shaft 15 is bearing on the shell 19, and the other end is supported on the brush cover assembly 18, defeated output shaft 25 1 end bearings are on protecgulum 1, and the other end is bearing on the shell 19.Promptly with shell 19 as support component, support the idle pulley deceleration device, simultaneously with shell 19 as link, and install more convenient.

For making compact conformation, driving wheel 21 is the rotating shaft 15 of gear shaft form, i.e. rotating shaft 15 be gear shaft and with idle pulley 22 engagement.

For reduce radially installation dimension as far as possible, driven pulley 23 can adopt the gear of internal gear pattern.

Embodiment:

As shown in Figure 2, the external toothing actuating motor comprises protecgulum 1, isolator 2, electromagnetic switch 16, stator 7, rotor 8, brush cover assembly 18.The rotating shaft 15 of rotor 8 is connected by the idle pulley deceleration device with output shaft 25, this idle pulley deceleration device comprises rotating shaft 15, idle pulley 22 and with driven pulley 23, rotating shaft 15 is the gear shaft form, mesh and be bearing on the shell 19 as driving wheel 21 and idle pulley 22, idle pulley 22 is arranged in the protecgulum 1 with driven pulley 23 engagements and by idler shaft 24, driven pulley 23 is arranged on the output shaft 25, output shaft 25 1 end bearings are on protecgulum 1, the other end is bearing on the shell 19, shell 19 connects protecgulum 1 and stator 7 as link simultaneously, electromagnetic switch 16 also is contained in the shell 19 and with isolator 2 and is connected, realized that simultaneously double reduction and axial dimension dwindle, the installation requirement that engine takies the confined space can be satisfied, the big start request of car engine start load can be satisfied again.

Claims

[claim 1] automobile engine actuating motor, comprise protecgulum (1), isolator (2), stator (7), rotor (8), driving wheel (20) on the output shaft (25) of isolator (2) is as the output of motor, rotor (8) (15) around the shaft rotates, and it is characterized in that: rotating shaft (15) is connected by the idle pulley deceleration device with output shaft (25).
[claim 2] automobile engine actuating motor according to claim 1, it is characterized in that: described idle pulley deceleration device comprises driving wheel (21), idle pulley (22) and driven pulley (23), driving wheel (21) and idle pulley (22) engagement, idle pulley (22) and driven pulley (23) engagement; Driving wheel (21) is arranged in the rotating shaft (15), and idle pulley (22) is arranged in the protecgulum (1) by idler shaft (24), and driven pulley (23) is arranged on the output shaft (25).
[claim 3] automobile engine actuating motor according to claim 2, it is characterized in that: protecgulum (1) is connected by shell (19) with stator (7), rotating shaft (15) is bearing on the shell (19), output shaft (25) one end bearings are on protecgulum (1), and the other end is bearing on the shell (19).
[claim 4] automobile engine actuating motor according to claim 2 is characterized in that: driving wheel (21) is the rotating shaft (15) of gear shaft form.
[claim 5] automobile engine actuating motor according to claim 2 is characterized in that: driven pulley (23) is an internal gear.