CN201003456Y - Electromagnetic coaxial moving type starter - Google Patents
Electromagnetic coaxial moving type starter Download PDFInfo
- Publication number
- CN201003456Y CN201003456Y CNU2007201005968U CN200720100596U CN201003456Y CN 201003456 Y CN201003456 Y CN 201003456Y CN U2007201005968 U CNU2007201005968 U CN U2007201005968U CN 200720100596 U CN200720100596 U CN 200720100596U CN 201003456 Y CN201003456 Y CN 201003456Y
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- CN
- China
- Prior art keywords
- housing
- sleeve
- transmission guide
- coaxial
- output sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an automobile starter of internal combustion engine, in particular to an electromagnetic coaxial motion type starter, which aims to overcome weak engagement property in the prior engine. The starter comprises a shell and a starting motor in the shell. Motor shaft of the starting motor is sleeved with a mobile iron core consisting of a power outputting sleeve and a transmission guide tube. An electromagnetic winding which wraps the mobile iron core is fixed in the shell. Front end of the power outputting sleeve has a driving gear, and the transmission guide tube matches with the motor shaft through a spiral spline amid. An unilateral clutch is arranged between the power outputting sleeve and the transmission guide tube, and the driving gear matches with the spiral spline at front of the power outputting sleeve. A buffer spring is installed between the driving gear and the power outputting sleeve. The utility model with scientific and compact structure as well as convenient use ends cases of gear crash and gear abrasion for engine. The driving gear and the unilateral clutch are respectively fixed so as to prolong service life of the engine.
Description
Technical field
The utility model relates to a kind of starter motor of the explosive motor of start-uping a car, and specifically is the coaxial runabout crane of a kind of electromagnetism.
Background technique
The starter motor of automobile use at present mostly is eletromagnetic-operating positively engaging formula starter motor, and there is following shortcoming in existing eletromagnetic-operating positively engaging formula starter motor:
1, meshing performance is relatively poor, is prone to the phenomenon of " apical tooth " and " mill teeth ", so-called apical tooth be the actuation gear of starter motor and engine flywheel tooth and tooth over against, can not mesh and cause starter motor to run well; So-called mill teeth be the actuation gear of starter motor starter motor does not run up with the engagement of engine flywheel ring gear, cause the starter motor can't proper functioning equally.Apical tooth and mill teeth phenomenon can cause starter driving gear and engine flywheel badly damaged.
2, the actuation gear that positively engaging formula starter motor uses all with the overrunning clutch fixed combination together, therefore no matter be that gear damages or overrunning clutch damages and all will cause both fixed combination to use, cause the starter motor fault.
The driving mechanism parts of 3, positively engaging formula starter motor are more, and free travel is bigger between the associated components, easily cause starter motor power supply unreliable, and the power supply in advance that causes therefrom or many drawbacks such as do not power.
Summary of the invention
The utility model is in order to solve problems such as existing starter motor meshing performance is relatively poor, and the coaxial runabout crane of electromagnetism of a kind of safe and reliable, long service life, compact structure, superior performance is provided.
The utility model is to adopt following technological scheme to realize: the coaxial runabout crane of electromagnetism, comprise housing, be fixed in the actuating motor in the housing, be with on the motor shaft of actuating motor by driving the movable core that output sleeve and transmission guide cylinder constitute, the housing internal fixation has the electromagnetic coil that is placed in movable core, drive the output barrel forward end and be provided with actuation gear, helical spline cooperates between transmission guide cylinder and the motor shaft, drive between output sleeve and the transmission guide cylinder and be provided with overrunning clutch, actuation gear cooperates with driving output barrel forward end helical spline, and is equipped with damping spring between actuation gear and the driving output sleeve; Drive the output barrel forward end and stretch out housing, and be provided with Returnning spring between itself and the housing.
When automotive ignition, electromagnetic coil gets, produce magnetic field, by driving movable core that output sleeve and transmission guide cylinder constitute under the effect of magnetic force and under the leading role of helical spline, rotation moves forward, thereby the actuation gear that is fixed in driving output barrel forward end is rotated together to move forward, seek chance with the engagement of engine flywheel ring gear, there will be two kinds of situations in engagement process: 1, mesh smoothly, promptly the machinery of generation to collide, mesh obstacle in actuation gear and the engine flywheel ring gear engagement process; 2, apical tooth state, at this moment actuation gear compresses with the damping spring that drives the output barrel forward end, actuation gear is moving after the rotation under the leading role of helical spline, seek the chance teeth groove of the tooth of actuation gear and engine flywheel ring gear (be over against) of engagement smoothly, seek then, the damping spring bounce-back is meshed actuation gear and engine flywheel ring gear smoothly, realizes the starting to motor; After the starting, ignition switch resets, the electromagnetic coil dead electricity, and magnetic field disappears, this moment engine flywheel ring gear high speed rotating, this, actuation gear threw off with the engine flywheel ring gear moment, thereby overrunning clutch is in and surmounts state, under the elastic force effect of Returnning spring, driving output sleeve and actuation gear and transmission guide cylinder moves backward, throw off fully until actuation gear and engine flywheel ring gear, finish the startup to motor, starter motor work finishes.
Compared with prior art, the utility model actuation gear and overrunning clutch take separated type to fix, and damage one of them, can not cause both fixed combination to use, as long as replace damage, can recover normal use; And take the helical spline fit system between actuation gear and the overrunning clutch, and between actuation gear and overrunning clutch, damping spring is set, solved the problem of " apical tooth " and " mill teeth "; Continue to use existing electromagnetic coil and the coaxial structure that is provided with of actuating motor, make the starter motor compact structure.
The utility model is rational in infrastructure, and is easy to use, solves existing apical tooth of starter motor and mill teeth phenomenon, compact structure, and actuation gear and overrunning clutch separated type are fixed, and have prolonged the working life of starter motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: the 1-housing; 2-actuating motor (only having expressed rotor among the figure); 3-drives the output sleeve; 4-transmission guide cylinder; The 5-electromagnetic coil; The 6-motor shaft; The 7-actuation gear; The 8-damping spring; 9,10-stationary contact; 11-ring-type movable contact; The 12-bearing; The 13-felt pad; The 14-bearing; The 15-Returnning spring; The 16-overrunning clutch; 17-engine flywheel ring gear.
Embodiment
The coaxial runabout crane of electromagnetism, comprise housing 1, be fixed in the actuating motor 2 in the housing 1, be with on the motor shaft 6 of actuating motor 2 by driving the movable core that output sleeve 3 and transmission guide cylinder 4 constitute, housing 1 internal fixation has the electromagnetic coil 5 that is placed in movable core, drive output sleeve 3 front ends and be provided with actuation gear 7, helical spline cooperates between transmission guide cylinder 4 and the motor shaft 6, drive between output sleeve 3 and the transmission guide cylinder 4 and be provided with overrunning clutch 16, actuation gear 7 cooperates with driving output sleeve 3 front end helical splines, and is equipped with damping spring 8 between actuation gear 7 and the driving output sleeve 3; Drive output sleeve 3 front ends and stretch out housing 1, and be provided with Returnning spring 15 between itself and the housing 1.General roller-type one way clutch/spring the overrunning clutch that adopts in the existing starter motor, the life-span is shorter, and for this reason, overrunning clutch 16 described in the utility model is a Ratcheting one-way clutch, the Ratcheting one-way clutch long service life.
During concrete enforcement, require the elastic force appropriateness of described damping spring 8; Electromagnetic coil 5 one sides are provided with two stationary contacts 9,10 that are serially connected with in the actuating motor current supply circuit in the housing 1, transmission guide cylinder 4 rear ends are fixed with bearing 12, be fixed with the ring-type movable contact 11 that two stationary contacts 9,10 are communicated with by felt pad 13 on the bearing 12, after making the contact of sound contact like this, when actuating motor drives the rotation of transmission guide cylinder, the sound contact can not relatively rotate, and avoids forming electric arc between the sound contact, and bearing 12 can substitute with copper sheathing; Drive output shaft 3 by bearing 14 and housing 1 front end support fixation, guarantee the working life of starter motor when large torque is exported like this; In addition, because electromagnetic coil is an axle with the actuating motor motor shaft, after the electromagnetic coil energising, the motor shaft of actuating motor can produce magnetic field equally, this magnetic field can hinder moving of movable core, thereby need volume size, watt level to select suitable electromagnetic coil in the specific implementation according to starter motor, determine static iron core, the movable core of electromagnetic coil, the volume ratio of motor shaft, guaranteeing the static iron core of the most magnetic line of force, reduce the influence of magnetic field that motor shaft produced to movable core by movable core and electromagnetic coil.And through facts have proved, motor shaft 6 is in the central position of electromagnetic coil 5, this position is the magnetic levitation district, and the radial magnetic force that motor shaft is subjected to is zero, does not impact so the radial magnetic force that electromagnetic coil produces can not move axially the movable core on cover and the motor shaft.
Claims (5)
1, the coaxial runabout crane of a kind of electromagnetism, comprise housing (1), be fixed in the actuating motor (2) in the housing (1), be with on the motor shaft (6) of actuating motor (2) by driving the movable core that output sleeve (3) and transmission guide cylinder (4) constitute, housing (1) internal fixation has the electromagnetic coil (5) that is placed in movable core, drive output sleeve (3) front end and be provided with actuation gear (7), helical spline cooperates between transmission guide cylinder (4) and the motor shaft (6), drive between output sleeve (3) and the transmission guide cylinder (4) and be provided with overrunning clutch (16), it is characterized in that actuation gear (7) cooperates with driving output sleeve (3) front end helical spline, and be equipped with damping spring (8) between actuation gear (7) and the driving output sleeve (3); Drive output sleeve (3) front end and stretch out housing (1), and be provided with Returnning spring (15) between itself and the housing (1).
2, the coaxial runabout crane of electromagnetism according to claim 1 is characterized in that described overrunning clutch (16) is a Ratcheting one-way clutch.
3, the coaxial runabout crane of electromagnetism according to claim 1 and 2, it is characterized in that interior electromagnetic coil (5) one sides of housing (1) are provided with two stationary contacts (9,10) that are serially connected with in the actuating motor current supply circuit, transmission guide cylinder (4) rear end is fixed with bearing (12), and bearing (12) is gone up by felt pad (13) and is fixed with the ring-type movable contact (11) that two stationary contacts (9,10) are communicated with.
4, the coaxial runabout crane of electromagnetism according to claim 1 and 2 is characterized in that driving output shaft (3) by bearing (14) and housing (1) front end support fixation.
5, the coaxial runabout crane of electromagnetism according to claim 3 is characterized in that driving output shaft (3) by bearing (14) and housing (1) front end support fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201005968U CN201003456Y (en) | 2007-02-07 | 2007-02-07 | Electromagnetic coaxial moving type starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201005968U CN201003456Y (en) | 2007-02-07 | 2007-02-07 | Electromagnetic coaxial moving type starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201003456Y true CN201003456Y (en) | 2008-01-09 |
Family
ID=39038994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201005968U Expired - Fee Related CN201003456Y (en) | 2007-02-07 | 2007-02-07 | Electromagnetic coaxial moving type starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201003456Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500304A (en) * | 2014-10-18 | 2015-04-08 | 锦州汉拿电机有限公司 | Spring reset type starter without electromagnetic switch |
| CN106014746A (en) * | 2016-06-16 | 2016-10-12 | 杭州华戈电气有限公司 | Automatically-controlled starter and control method thereof |
| CN110081092A (en) * | 2019-05-30 | 2019-08-02 | 无锡市神力齿轮冷挤有限公司 | Flexibility engagement roller-type one way clutch |
-
2007
- 2007-02-07 CN CNU2007201005968U patent/CN201003456Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500304A (en) * | 2014-10-18 | 2015-04-08 | 锦州汉拿电机有限公司 | Spring reset type starter without electromagnetic switch |
| CN106014746A (en) * | 2016-06-16 | 2016-10-12 | 杭州华戈电气有限公司 | Automatically-controlled starter and control method thereof |
| CN110081092A (en) * | 2019-05-30 | 2019-08-02 | 无锡市神力齿轮冷挤有限公司 | Flexibility engagement roller-type one way clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 |