CN204677352U - A kind of starter driving gear and starter motor - Google Patents
A kind of starter driving gear and starter motor Download PDFInfo
- Publication number
- CN204677352U CN204677352U CN201520317646.2U CN201520317646U CN204677352U CN 204677352 U CN204677352 U CN 204677352U CN 201520317646 U CN201520317646 U CN 201520317646U CN 204677352 U CN204677352 U CN 204677352U
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- tooth head
- gear
- head body
- engaging gear
- starter
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Abstract
The utility model discloses a kind of starter driving gear, it is characterized in that, comprise: a tooth head body, for the moment of torsion of a motor is passed to an engaging gear, this engaging gear is positioned at one end of this tooth head body, this engaging gear, along this tooth head body axial motion, this engaging gear and this tooth head body arranges a damper, for forming a repulsion vertically at this engaging gear and this tooth head body.
Description
Technical field
The utility model relates to the starter motor technical field of motor car engine and other motor, particularly relates to a kind of starter driving gear and starter motor.
Background technique
Starter motor is a kind of motor of ato unit.When ignition switch is connected, the pull-in winding of starter motor drags shift fork, and the engaging gear of shift fork promotion simultaneously impels engaging gear can engage with engine flywheel.When switch starter switches on power, sucking coil and hold-in winding acting in conjunction make moving core move right, and drive shift fork to connect actuation gear and flywheel ring gear, connect motor circuit simultaneously.During motor energising work, sucking coil is shorted, and hold-in winding effect makes moving core keep.In the moment of unclamping starting button, because sucking coil and hold-in winding are series relationship, the flow direction that two coils produce is contrary, cancel each other, so moving core is rapid return under the effect of Returnning spring, order about actuation gear and exit engagement, switch disconnects, cut off the main circuit of starter motor, starter motor shuts down.
Starter motor is when carrying out with the engaging of flywheel, and its engaging gear clamp-ons flywheel by force by the elastic force of shift fork.The collision of frequent generation engaging gear and flywheel, causes engaging gear to rebound, and then engagement, until engage successfully.This phenomenon is called mill teeth.Traditional motor, the life-span of starter motor is within 100,000 times.After permanent use, its flywheel, due to the long-term impact of starter motor engaging gear, can damage.Nowadays with playing-the motor of stop system, the life requirements of starter motor 150,000 times of improving, even 300,000 times, than traditional startup machine, improve greatly.Improve life-span of engaging gear, protection flywheel and reduce gearing noise, to become-stop system need faced by problem.
The integral type actuation gear used in prior art as shown in Figure 1.Tooth head and the live axle 10 of this integral type actuation gear 1 pass through spline engagement.In starter motor drive motor rotation process, tooth head engages with flywheel by force, even if engaging gear and flywheel collide, still continues to contact with flywheel turns.Often there is mill teeth phenomenon in such structure.Because the material of engaging gear is higher than the mechanical strength of flywheel material, after using so long-time, engine flywheel and starter motor engaging gear have wearing and tearing.Especially with the serious wear of engine flywheel.
In order to solve the problems of the technologies described above, in prior art, there is the actuation gear of separated type.As shown in Figure 2, engaging gear 21 is separated with tooth head body 23 by the actuation gear 2 of this separated type, and what adopt therebetween is spring buffer.The configuration achieves live axle 10, with engaging gear 21 being separated in axial motion.The mill teeth phenomenon occurred during engagement engages after making engaging gear 21 resilience buffering again.But the counter-force near-linear that spring 22 produces under compression.That is spring 22 is by the process compressed, and compressive force is almost consistent, cause gear to retreat and the process time of replying slower.
In view of this, need badly in prior art and want a kind of new starter driving gear, conveniently can engage with flywheel, the generation of mill teeth phenomenon can be reduced again.
Summary of the invention
In order to overcome the defect existed in prior art, the invention provides a kind of starter driving gear, can conveniently engage with flywheel, the generation of mill teeth phenomenon can be reduced again.
In order to realize foregoing invention object, the present invention discloses a kind of starter driving gear, it is characterized in that, comprise: a tooth head body, for the moment of torsion of a motor is passed to an engaging gear, this engaging gear is positioned at one end of this tooth head body, and this engaging gear is along this tooth head body axial motion, this engaging gear and this tooth head body arrange a damper, for forming a repulsion vertically at this engaging gear and this tooth head body.
Further, this tooth head body comprises a limited step, and this damper is installed on this limited step.
Further, this damper is the relative magnet ring of two polarity.
Further, this tooth head body also comprises a spacing preiection, and this engaging gear is between this spacing preiection and this limited step.
Further, this spacing preiection is a back-up ring.
Further, these two magnet rings are installed in this engaging gear surface relative with this tooth head body respectively, when this engaging gear and this tooth head body are close to, have gap between these two magnet rings.
The utility model discloses a kind of starter motor simultaneously, comprising: a motor, for being a moment of torsion by the electric energy conversion of storage battery; One driving mechanism, for passing to a motor by this moment of torsion; One control mechanism, for connecting and cut off the circuit between starter motor and this storage battery; It is characterized in that, this driving mechanism comprises actuation gear as described above.
The present invention is relative to traditional integral type tooth head, and engaging with flywheel freely, during the situation that generation engaging gear end face and flywheel end face impact mutually, engaging gear can rollback.Under the buffering of magnetic force, the impact that whole drive part is subject to reduces.The life-span of starter motor drive system (engaging gear, live axle, clutch and reducing gear etc.) and engine flywheel can be extended.Meanwhile, noise during engagement is reduced.
On the other hand, be separated tooth head relative to spring, due to square inversely proportional relation (be similar to and think) of the distance between the repulsive force between magnet and magnet.Magnet spacing is shorter, and its power mutually repelled is larger.So at magnet ring type separated type tooth head, engaging gear is after being impacted, and the repulsive force be subject in the process moved right sharply raises, make engaging gear can more Quick-return to origin-location.
Accompanying drawing explanation
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawings about the advantages and spirit of the present invention.
Fig. 1 is the structural representation of the integral type tooth head that prior art uses;
Fig. 2 is the structural representation of the separated type tooth head that prior art uses;
Fig. 3 is the structural representation of the separated type tooth head involved by the utility model.
Embodiment
Starter driving gear and the starter motor of a kind of specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.But, the utility model should be understood as and be not limited to this mode of execution described below, and technical concept of the present utility model can combine with other known technologies or function other technologies identical with those known technologies and implements.
In the following description, in order to clear displaying structure of the present utility model and working method, to be described by many Directional words, but by the Word Understanding such as "front", "rear", "left", "right", " outward ", " interior ", " outwards ", " inwardly ", " axis ", " radial direction " for convenience of term, and word of limitation should do not should be understood to.
The utility model provides a kind of actuation gear of starter motor can effectively cushion the mesh impact produced between engaging gear and flywheel, and can make the rapid return of engaging gear after starting completes.
In order to realize foregoing invention object, as shown in Figure 3, this actuation gear 3 comprises the tooth head body 34 be installed on outside live axle 10 to actuation gear provided by the utility model, and is positioned at the engaging gear 33 outside tooth head body 34.Engaging gear 33 engages with flywheel, and flywheel driven rotates, thus realizes engine start.The effect of tooth head body 34 is carrying engaging gears 33, the rotary motion of starter motor is delivered to engaging gear 33 simultaneously.
Engaging gear 33 is enclosed within tooth head body 34, can slide along tooth head body 34 to the direction with axis being parallel.On one end that engaging gear 33 is relative with tooth head body 34, a damper 32 is installed, for producing a repulsive force or resistance between engaging gear 33 and tooth head body 34.
Preferably, this damper 32 is a magnetic group, and magnetic group is installed on engaging gear 33 surface relative with tooth head body 34.This magnetic group can be the magnet ring of a pair ring, also can be the magnet piece that spaced correspondence is placed.The relative face of two magnetic groups is same polarity, mutually exclusive.Under co-operation, when making engaging gear 33 be subject to impacting when engaging can resilience buffering simultaneously Quick-return continue to engage to original position.
In order to obtain best technique effect, magnet ring can be embedded in engaging gear 33 respectively with in tooth head body 34, and the right side plan of magnet ring and engaging gear 33 exists a little gap, and same with the left side plan of tooth head body 34 exist a little gap.Even if the benefit done like this is the mill teeth phenomenon that engaging gear and flywheel occur, also can directly avoid collision mutually occurs between magnet ring, the safety of protection magnet ring.
The other end of engaging gear 33 installs a limit stoper 31, and this limit stoper 31 is for carrying out spacing to this engaging gear 33.This limit stoper 31 is preferably a back-up ring, and back-up ring and tooth head body 34 are fixed.Under the idle state of actuation gear 3, because magnetic group and limit stoper 31 lay respectively at the two ends of engaging gear 33, engaging gear 33 is therefore made to remain on relatively-stationary position.
The present invention is relative to traditional integral type tooth head, and engaging with flywheel freely, during the situation that generation engaging gear end face and flywheel end face impact mutually, engaging gear can rollback.Under the buffering of magnetic force, the impact that whole drive part is subject to reduces.The life-span of starter motor drive system (engaging gear, live axle, clutch and reducing gear etc.) and engine flywheel can be extended.Meanwhile, noise during engagement is reduced.
On the other hand, be separated tooth head relative to spring, due to square inversely proportional relation (be similar to and think) of the distance between the repulsive force between magnet and magnet.Magnet spacing is shorter, and its power mutually repelled is larger.So at magnet ring type separated type tooth head, engaging gear is after being impacted, and the repulsive force be subject in the process moved right sharply raises, make engaging gear can more Quick-return to origin-location.
Just preferred embodiment of the present invention described in this specification, above embodiment is only in order to illustrate technological scheme of the present invention but not limitation of the present invention.All those skilled in the art, all should be within the scope of the present invention under this invention's idea by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (8)
1. a starter driving gear, it is characterized in that, comprise: a tooth head body, for the moment of torsion of a motor is passed to an engaging gear, described engaging gear is positioned at one end of described tooth head body, described engaging gear, along the axial motion of described tooth head body, described engaging gear and described tooth head body arranges a damper, for forming a repulsion vertically at described engaging gear and described tooth head body.
2. starter driving gear as claimed in claim 1, it is characterized in that, described tooth head body comprises a limited step, and described damper is installed on described limited step.
3. starter driving gear as claimed in claim 1, it is characterized in that, described damper is a magnetic group, and the relative one side polarity of described magnetic group is identical.
4. starter driving gear as claimed in claim 1, is characterized in that, described magnetic group is the corresponding magnet piece in two magnet rings or position.
5. starter driving gear as claimed in claim 2, it is characterized in that, described tooth head body also comprises a spacing preiection, and described engaging gear is between described spacing preiection and described limited step.
6. starter driving gear as claimed in claim 4, it is characterized in that, described spacing preiection is a back-up ring.
7. starter driving gear as claimed in claim 3, it is characterized in that, described two magnet rings are installed in the described engaging gear surface relative with described tooth head body respectively, when described engaging gear and described tooth head body are close to, have gap between described two magnet rings.
8. a starter motor, comprising: a motor, for being a moment of torsion by the electric energy conversion of storage battery; One driving mechanism, for passing to a motor by described moment of torsion; One control mechanism, for connecting and cut off the circuit between starter motor and described storage battery; It is characterized in that, described driving mechanism comprises the actuation gear as described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317646.2U CN204677352U (en) | 2015-05-18 | 2015-05-18 | A kind of starter driving gear and starter motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317646.2U CN204677352U (en) | 2015-05-18 | 2015-05-18 | A kind of starter driving gear and starter motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677352U true CN204677352U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520317646.2U Active CN204677352U (en) | 2015-05-18 | 2015-05-18 | A kind of starter driving gear and starter motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677352U (en) |
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2015
- 2015-05-18 CN CN201520317646.2U patent/CN204677352U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |