CN204082412U - A kind of one-way clutch of automobile starting motor structure - Google Patents
A kind of one-way clutch of automobile starting motor structure Download PDFInfo
- Publication number
- CN204082412U CN204082412U CN201420521051.4U CN201420521051U CN204082412U CN 204082412 U CN204082412 U CN 204082412U CN 201420521051 U CN201420521051 U CN 201420521051U CN 204082412 U CN204082412 U CN 204082412U
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- direct current
- spindle rod
- motor
- armature
- magnetic switch
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- 238000004804 winding Methods 0.000 claims abstract description 20
- 239000007858 starting material Substances 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a kind of one-way clutch of automobile starting motor structure, comprises spindle rod, small gear, splined sleeve, roller type one way Engaging-and-disengaging bearing, retarder, ancillary coil, armature supply along separate routes; Described small gear and splined sleeve are arranged on the front-end and back-end of roller type one way Engaging-and-disengaging bearing respectively, and roller type one way Engaging-and-disengaging bearing is sleeved on spindle rod, and splined sleeve engages with the spline structure on spindle rod; Spindle rod is connected to the direct current motor of automobile starter to obtain torque by retarder; The magnetic switch plectrum of automobile starter can promote described spindle rod and proceed to small gear is engaged with the ring gear of motor; Described armature supply connects the pull in winding of magnetic switch along separate routes and the electric current from pull in winding is guided to the armature of direct current motor; Described ancillary coil is arranged around the armature of direct current motor, and connects the hold-in winding of magnetic switch.It is dynamic that the utility model had just made its small gear enter low speed rotation before magnetic switch is connected, thus reach soft engagement, can not bring damaging influence to gear structure.
Description
Technical field
The utility model relates to automobile starter field, more specifically, relates to a kind of one-way clutch of automobile starting motor structure.
Background technique
The starting of motor car engine needs to provide initial driving force by outside, and the parts realizing this function are exactly starter motor.The energy of starter motor is from storage battery, and starter motor self then has direct current motor, magnetic switch and the parts such as drive unit with overrunning clutch.
The starting that direct current motor is motor provides power, and the effect that magnetic switch is controls the circuit switch between storage battery and direct current motor, and the engagement controlling clutch driving unit and motor car engine be separated.Magnetic switch comprises the structures such as pull in winding, hold-in winding, aroused in interest, with all worries set aside, plectrum.When automotive ignition starts, the equal demand working of pull in winding, hold-in winding also produces equidirectional electromagnetic attraction, attract aroused in interest generation displacement and contact with all worries set aside, and this shift action is driven with the drive unit of overrunning clutch and engaging of motor car engine by plectrum on the one hand, make the circuit ON between storage battery and direct current motor on the other hand.
The starting process of motor car engine is as follows: under the suction of above-mentioned magnetic switch, the small gear of overrunning clutch proceeded to produce with the ring gear on automobile engine crankshaft by plectrum and engage, and now magnetic switch is connected between direct current motor and storage battery and is powered, direct current motor drives overrunning clutch to rotate, then by the conduction of described small gear and ring gear, motor car engine is rotated.The power of overrunning clutch conduction can overcome the resisting moment of motor car engine, thus motor car engine is rotated.Further, after motor car engine reaches predetermined rotating speed, overrunning clutch and motor car engine structurally realize being separated, can avoid like this rotating speed of automobile engine increase to over the rotating speed of starter motor gradually after destroy overrunning clutch and even starter motor.
From the design, small gear and the ring gear on engine crankshaft of overrunning clutch produce that engage should be synchronous with the connection of magnetic switch.But in fact, more common a kind of situation is, what the small gear of overrunning clutch and the ring gear on engine crankshaft produced engage reach fully before, magnetic switch is just connected.This situation easily causes between the ring gear on small gear and engine crankshaft weares and teares, and affects life-span and the work of starter and even motor.
Model utility content
Based on above-mentioned defect of the prior art, the utility model provides a kind of one-way clutch of automobile starting motor structure.Overrunning clutch of the present utility model, in promotion small gear and engine ring gear engagement process, first makes small gear enter low speed rotation dynamically, thus avoids small gear and the unsuitable engaging position of ring gear causes damage.
One-way clutch of automobile starting motor structure described in the utility model, is characterized in that, comprises spindle rod, small gear, splined sleeve, roller type one way Engaging-and-disengaging bearing, retarder, ancillary coil, armature supply along separate routes; Described small gear and splined sleeve are arranged on the front-end and back-end of roller type one way Engaging-and-disengaging bearing respectively, and roller type one way Engaging-and-disengaging bearing is sleeved on spindle rod, and splined sleeve engages with the spline structure on spindle rod; Spindle rod is connected to the direct current motor of automobile starter to obtain torque by retarder; The magnetic switch plectrum of automobile starter can promote described spindle rod and proceed to small gear is engaged with the ring gear of motor; Described armature supply connects the pull in winding of magnetic switch along separate routes and the electric current from pull in winding is guided to the armature of direct current motor; Described ancillary coil is arranged around the armature of direct current motor, and connects the hold-in winding of magnetic switch.
Preferably, described armature supply contacts the armature of described direct current motor along separate routes by brush.
Preferably, described ancillary coil around within the casing being arranged on direct current motor, and is positioned at the permanent magnet two ends of direct current motor.
Preferably, described retarder is train of reduction gears.
Preferably, described roller type one way Engaging-and-disengaging bearing comprises outer ring, roller, spring and inner ring.
One-way clutch of automobile starting motor described in the utility model is before magnetic switch is connected, by the force action of armature supply along separate routes and both ancillary coil, just its small gear is made to enter low speed rotation dynamic, thus make small gear reach soft with the ring gear of motor to engage, damaging influence can not be brought to gear structure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the schematic diagram of the utility model one-way clutch of automobile starting motor structure.
Embodiment
The technical solution of the utility model is understood better in order to make those skilled in the art person, and enable above-mentioned purpose of the present utility model, feature and advantage become apparent more, below in conjunction with embodiment and embodiment's accompanying drawing, the utility model is described in further detail.
The utility model one-way clutch of automobile starting motor structural representation shown in Figure 1, this structure specifically comprises: spindle rod 1, small gear 2, splined sleeve 3, roller type one way Engaging-and-disengaging bearing 4, retarder 5, ancillary coil 6, armature supply shunt 7, brush 8.Described small gear 2 and splined sleeve 3 are arranged on the front-end and back-end of roller type one way Engaging-and-disengaging bearing 4 respectively, roller type one way Engaging-and-disengaging bearing 4 is sleeved on spindle rod 1, roller type one way Engaging-and-disengaging bearing comprises outer ring, roller, spring and inner ring, and splined sleeve 3 engages with the spline structure on spindle rod 1; Spindle rod 1 is connected to the direct current motor of automobile starter to obtain torque by retarder 5, and described retarder 5 is train of reduction gears.Thus the rotation of spindle rod 1 will pass through the transmission of splined sleeve 3 and roller type one way Engaging-and-disengaging bearing 4, drives the rotation of small gear 2.The plectrum 11 of the magnetic switch 10 of automobile starter can promote described spindle rod 1, thus makes spindle rod 1 drive small gear 2 to proceed to engage with the ring gear 12 of motor, drive engine rotation like this.
In the prior art, usually, before proceeding to the position of engaging with the ring gear of motor at small gear, magnetic switch not conducting, thus the power supply of direct current motor is in dissengaged positions, small gear is in nonrotational state, can cause like this to engage more stiff between small gear with engine ring gear, is easy to cause the gear teeth to damage.
And in structure of the present utility model, provide before magnetic switch 10 is closed, drive described small gear to enter the dynamic structure of low speed rotation.First, armature supply shunt 7 connects the pull in winding of magnetic switch 10, and the electric current from pull in winding is guided to the armature 13 of direct current motor.The pull in winding of magnetic switch 10 was just energized before this switch is closed, after the electric currents that armature supply shunt 7 guides send armature 13 to by brush 8, armature 13 obtains certain voltage, thus can enter under the effect of the permanent magnet 14 of direct current motor and slowly run.But, if only guide the electric current from pull in winding with armature supply shunt 7, torque may be caused not enough because electric current is too small, and the electric current of pull in winding itself can not strengthen arbitrarily.Therefore, the utility model additionally provides ancillary coil 6 described in a group, it is around within the casing being arranged on direct current motor, and be positioned at permanent magnet 14 two ends of direct current motor, around the armature 13 of direct current motor, and ancillary coil 6 connects the hold-in winding of magnetic switch, hold-in winding was also energized before magnetic switch is closed, thus the magnetic field of magnetic field to permanent magnet 14 that ancillary coil 6 provides is strengthened, thus for drive main spindle bar 1, roller type one way Engaging-and-disengaging bearing 4 are until small gear 2 enters the torque that low speed rotation dynamically provides abundance.Small gear dynamically reaches with the ring gear of motor at low speed rotation and engages, and the interaction of the two is softer, can not bring damaging influence to gear structure.
Visible; one-way clutch of automobile starting motor described in the utility model is before magnetic switch is connected, and by the force action of armature supply along separate routes and both ancillary coil, it is dynamic that driving pinion enters low speed rotation; be conducive to protecting gear teeth structure, extend the working life of starter motor.
Size in more than describing and quantity are all only informative, and those skilled in the art can select suitable application size according to actual needs, and do not depart from scope of the present utility model.Protection domain of the present utility model is not limited thereto, and is anyly familiar with those skilled in the art in the technical scope that the utility model discloses, the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should define with claim is as the criterion.
Claims (5)
1. an one-way clutch of automobile starting motor structure, is characterized in that, comprises spindle rod, small gear, splined sleeve, roller type one way Engaging-and-disengaging bearing, retarder, ancillary coil, armature supply along separate routes; Described small gear and splined sleeve are arranged on the front-end and back-end of roller type one way Engaging-and-disengaging bearing respectively, and roller type one way Engaging-and-disengaging bearing is sleeved on spindle rod, and splined sleeve engages with the spline structure on spindle rod; Spindle rod is connected to the direct current motor of automobile starter to obtain torque by retarder; The magnetic switch plectrum of automobile starter can promote described spindle rod and proceed to small gear is engaged with the ring gear of motor; Described armature supply connects the pull in winding of magnetic switch along separate routes and the electric current from pull in winding is guided to the armature of direct current motor; Described ancillary coil is arranged around the armature of direct current motor, and connects the hold-in winding of magnetic switch.
2. one-way clutch of automobile starting motor structure according to claim 1, is characterized in that, described armature supply contacts the armature of described direct current motor along separate routes by brush.
3. one-way clutch of automobile starting motor structure according to claim 2, is characterized in that, described ancillary coil around within the casing being arranged on direct current motor, and is positioned at the permanent magnet two ends of direct current motor.
4. one-way clutch of automobile starting motor structure according to claim 3, is characterized in that, described retarder is train of reduction gears.
5. one-way clutch of automobile starting motor structure according to claim 4, is characterized in that, described roller type one way Engaging-and-disengaging bearing comprises outer ring, roller, spring and inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521051.4U CN204082412U (en) | 2014-09-11 | 2014-09-11 | A kind of one-way clutch of automobile starting motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521051.4U CN204082412U (en) | 2014-09-11 | 2014-09-11 | A kind of one-way clutch of automobile starting motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082412U true CN204082412U (en) | 2015-01-07 |
Family
ID=52175139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420521051.4U Expired - Fee Related CN204082412U (en) | 2014-09-11 | 2014-09-11 | A kind of one-way clutch of automobile starting motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082412U (en) |
-
2014
- 2014-09-11 CN CN201420521051.4U patent/CN204082412U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20200911 |