CN205243701U - A drive gear for starter - Google Patents
A drive gear for starter Download PDFInfo
- Publication number
- CN205243701U CN205243701U CN201520712261.6U CN201520712261U CN205243701U CN 205243701 U CN205243701 U CN 205243701U CN 201520712261 U CN201520712261 U CN 201520712261U CN 205243701 U CN205243701 U CN 205243701U
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- gear
- starter
- driven wheel
- mass
- gear mass
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Abstract
The utility model discloses a drive gear for starter, include: a first gear mass and a second gear mass, this first second gear mass all set up with a gear axis body on, this first gear moves along the parallel orientation of the axis with this gear axis body, including an energy storage unit between this first gear mass and the second gear mass, this energy storage unit is arranged in meshing with the completion at this first gear mass of engagement process promotion.
Description
Technical field
The utility model relates to a kind of starter technical field for automobile, relates in particular to a kind of for startingThe driven wheel of machine.
Background technology
Starter (or being called " starter motor ", " start/stop machine ") is by electromagnetic switch, actuating motor and transmissionMechanism's three parts composition.
Starter driving gear drives engine flywheel to be mainly divided into two stages: engagement stage and driving stage.
First stage is the engagement stage, and after firing key is opened, driven wheel starts action and arrives and engineFlywheel completes the stage of engagement. The load of engagement stage driven wheel is mainly tooth end-face friction and impulsive force,In order to ensure the reliability of engagement process and to reduce wearing and tearing and the impact of this process, designing requirement meshing quality (When engagement, the quality that shift fork or engage spring promote) light as far as possible, the power that simultaneously promotes meshing quality again thanLess; The power that promotes on the other hand meshing quality derives from electromagnetic switch, smaller motive force, and meaning canTo adopt the electromagnetic switch of small size, not only save cost but also reduced energy consumption.
Second stage is the driving stage, and driven wheel starts to drive engine flywheel until engine can be certainlyTurn. The load of this stage driven wheel comes from the moment of resistance of engine, requires driven wheel to have very high machineryIntensity and can bear high-torque.
Fig. 1 is the driven wheel of a kind of common starter in prior art. As shown in Figure 1, electromagnetic switch 5Provide engagement thrust, gauge tap main contacts closure. Engage spring 4 drives shift fork 3 to rotate, and by electromagnetismEngagement thrust and motion that switch produces are passed to isolator 2. Driven wheel 1 has stretched out forward engagement. FigureThe 2nd, a kind of driven wheel of common starter in prior art, with the difference of the driven wheel shown in Fig. 1Be, the starter front cover in Fig. 2 adopts beam type design. Above two kinds of prior art schemes, are nibblingClose the stage, shift fork 3 all needs to promote driven wheel 1 and isolator 2 simultaneously, in order to reach the engagement speed needingDegree, just must strengthen engagement force. Therefore in prior art, just pass through to increase solenoid winding winding, sacrificeThe mode of electromagnetic switch volume is to increase engagement force. But merely increase engagement force and can cause another technologyProblem, i.e. the impulsive force of driven wheel to engine flywheel, driven wheel end face and flywheel end face are wiped power simultaneouslyAlso can increase, the wearing and tearing that therefore produce between part increase, when causing engaging reliability and can using with starterBetween increase and obviously reduce. For automobile, in driving procedure, need frequent starting starter, alsoDemand motive gear frequently engages with flywheel, therefore also causes shorten the service life of starter.
In view of this, in prior art, need badly and want a kind of starter that can simultaneously solve the problems of the technologies described above to driveGear.
Utility model content
In order to overcome the defect existing in prior art, the utility model provides one reducing electromagnetic switchVolume situation under, improve starter engagement reliability and reduce driven wheel and engine in engagement process and flyThe driven wheel of foot wheel abrasion and impact.
For above-mentioned utility model object, the utility model discloses a kind of driven wheel for starter, bagDraw together: one first gear mass and one second gear mass, the one the second gear masses all arrange and a gear axis bodyUpper, this first gear moves along the direction parallel with the axis of this gear axis body, this first gear mass and secondBetween gear mass, comprise an energy-storage units, this energy-storage units is for promoting this first gear mass in engagement processTo realize engagement.
Further, this energy-storage units is a spring or identical magnet group or the rubber ring of relative one side polarity.
Further, this first gear mass towards a side of this second gear mass or/and the second gear mass towardsOne side of this first gear mass comprises a groove, and this groove is used for placing this energy storage device.
Further, this first gear mass and this gear axis body pass through spline joint always, make this first toothWheel body synchronously rotates with the rotation of this gear axis body. This second gear mass and this gear axis body are by spend alwaysKey connects, and this second gear mass is synchronously rotated with the rotation of this gear axis body.
Further, the quality of this first gear mass is less than the quality of this second gear mass.
Further, the intensity of this first gear mass is less than the intensity of this second gear mass.
The utility model discloses a kind of starter simultaneously, comprising: a motor, and for by the electric energy of batteryBe converted into a moment of torsion; One transmission mechanism, for passing to an engine by this moment of torsion; One controlling organization, usesIn connecting and cut off the circuit between starter and this battery; It is characterized in that, this transmission mechanism comprise asDriven wheel mentioned above.
Further, this starter is freely-supported beam type starter or beam type starter.
Compared with prior art, driven wheel is divided into meshing gear and moment driven wheel by the utility model,Meshing gear small volume and less weight therefore only needs to promote the power of meshing gear in engagement process, and does not need to promoteThe power of moment driven wheel 60, therefore can be used the few very little electromagnetic switch of volume of coil turn. Meanwhile,The electromagnetic force that spring force when engagement reduces and electromagnetic switch produces reduces, rushing can reduce engagement timeHit and wear and tear, having improved the reliability of engagement simultaneously, can significantly improve the engagement systems life-span.
Brief description of the drawings
Can describe in detail and appended graphic obtaining by following utility model about advantage of the present utility model and spiritTo further understanding.
Fig. 1 is the part-structure schematic diagram of freely-supported beam type starter of the prior art;
Fig. 2 is the part-structure schematic diagram of beam type starter of the prior art;
Fig. 3 is the structural representation of the related freely-supported beam type starter of the utility model;
Fig. 4 is the structural representation of the related beam type starter of the utility model.
Detailed description of the invention
Describe the driving for starter of a kind of specific embodiment of the present utility model in detail below in conjunction with accompanying drawingGear. But, the utility model should be understood as and be not limited to this embodiment described below,And technical concept of the present utility model can be identical with those known technologies with other known technologies or functionOther technologies combination is implemented.
In the following description, for clear structure of the present utility model and the working method of showing, will be by manyDirectionality word is described, but should by 'fornt', 'back', " left side ", " right side ", " outward ", " interior ", " toOutward ", the Word Understanding such as " inwardly ", " axially ", " radially " is for convenience of term, and not should be understood to limitProperty word. Its position of " front " the main finger of word part of using in the following description in addition, is axiallyThe upper front portion near engine or engine rim gear wheel. Similarly, " afterwards " word mainly refers to that these parts are near risingThe back cover portion of motivation, i.e. another region contrary with engine in direction.
Fig. 3 is the structural representation of the driven wheel of the related freely-supported beam type starter of the utility model. AsShown in Fig. 3, driving shaft one end of freely-supported beam type starter is supported for planet wheel seat axle bush, and the other end is supported forFront Cover Bearing, the stress point of whole driving shaft is between two strong points. This starter comprise a spring 10,Isolator 20, shift fork 30, electromagnetic switch 40, meshing gear 50, moment driven wheel 60, gear axis body70 and driving shaft 80. In the time of this starter work, driven wheel is subject to driving shaft 80 driven rotary, drivesGear need to engage with engine flywheel. Driven wheel of the prior art is designed to two by the utility modelGear, i.e. meshing gear 50, moment driven wheel 60, wherein the quality of meshing gear 50 is low weight, powerThe mass ratio of square driven wheel 60 is larger, and make, in the selection of material, meshing gear 50 can selection intensityLess material, moment driven wheel 60 can the larger material of selection intensity.
Meshing gear 50, moment driven wheel 60 are all arranged on gear axis body 70, by gear axis body 70Be connected with driving shaft 80. Meshing gear 50 and gear axis body 70, by straight spline joint, make this meshing gearCan move forward or backward, but cannot rotate around this gear axis body 70.
In addition, between meshing gear 50, moment driven wheel 60, also comprise an energy-storage units 10,Spring 10 in the present embodiment. After ignition switch is opened, electromagnetic switch 40 is worked, and electromagnetic switch 40 startsDraw shift fork 30, shift fork 30 pushes away isolator 20, isolator 20 tooth pushing wheel axis bodies 70, and gear axis body 70 pushes away engaging toothWheel 50, until meshing gear 50 contacts engine flywheel, starts Compress Spring 10. Electromagnetic switch 40 continues to closeClose until spring 10 is fully compressed, electromagnetic switch 40 continues closure until switch main contacts is connected, and motor leavesBegin to rotate, meshing gear 50 rotates until find engine flywheel gap. In this process, due to engaging toothWheel 50, moment driven wheel 60 and isolator 20 are done as a wholely moving to free wheel direction, stillBecause the quality of meshing gear 50 is far smaller than moment driven wheel 60, gear axis body 70 and isolator 20Quality, so that the very little power of 10 needs of energy-storage units just can make meshing gear 50 obtain is higherAcceleration (being that other parts are almost static with respect to meshing gear 50). Spring 10 promotes meshing gear 50Complete engagement, moment driven wheel 60 moves forward and engages and drive flywheel with engine flywheel.
From above-mentioned motion process and order, in engagement process, first part electromagnetic switch electromagnetic force is transformedFor the restoring force of spring 10, then promote the low meshing gear of quality small intensity by the restoring force of this spring 1050 move forward. In another kind of preferred embodiment, between meshing gear 50, moment driven wheel 60, putPut the group of magnets of a generation repulsive interaction. Because meshing gear 50 moves forward and find flywheel distance intermittently logicalOften be several millimeters, therefore can between meshing gear 50, moment driven wheel 60, place one and there is height and reboundThe rubber ring of multiple power. Preferably, can be at meshing gear 50 in the one side near this moment driven wheel 60One groove is set, for placing energy-storage units, also can be at moment driven wheel 60 near this meshing gear 50On groove is set. In another kind of preferred embodiment, can be by meshing gear 50 and moment driven wheel 60One rubber magnetic stripe is set in relative one side, both can be between meshing gear 50 and moment driven wheel 60Generate a repulsion, can also play the effect of buffering and shock preventing.
Compared with prior art, driven wheel is divided into meshing gear and moment driven wheel by the utility model,Meshing gear small volume and less weight therefore only needs to promote the power of meshing gear in engagement process, and does not need to promoteThe power of moment driven wheel 60, therefore can be used the few little electromagnetic switch of volume of coil turn. Meanwhile, nibbleThe electromagnetic force that spring force while closing reduces and electromagnetic switch produces reduces, the impact can reduce engagement time,The reliability that has simultaneously improved engagement, has improved the engagement systems life-span.
Described in this description is preferred embodiment of the present utility model, above embodiment only in order toThe technical solution of the utility model is described but not to restriction of the present utility model. All those skilled in the art are according to thisThe design of utility model is by the available technical scheme of logical analysis, reasoning, or a limited experiment, allShould be within scope of the present utility model.
Claims (9)
1. for a driven wheel for starter, it is characterized in that, comprising: one first gear mass and one secondGear mass, described the one the second gear masses all arrange with a gear axis body on, described the first gear along and instituteThe parallel direction of axis of stating gear axis body moves, and between described the first gear mass and the second gear mass, comprisesOne energy-storage units, described energy-storage units is nibbled to complete for promoting described the first gear mass in engagement processClose.
2. the driven wheel for starter as claimed in claim 1, is characterized in that, described energy-storage units isOne spring or relatively identical magnet group or the rubber ring of one side polarity.
3. the driven wheel for starter as claimed in claim 1, is characterized in that, described the first gear massTowards a side of described the second gear mass or/and the second gear mass towards a side bag of described the first gear massDraw together a groove, described groove is used for placing described energy storage device.
4. the driven wheel for starter as claimed in claim 1, is characterized in that, described the first gear massPass through spline joint always with described gear axis body, make described the first gear mass turning with described gear axis bodyMove and synchronously rotate.
5. the driven wheel for starter as claimed in claim 1, is characterized in that, described the second gear massPass through spline joint always with described gear axis body, make described the second gear mass turning with described gear axis bodyMove and synchronously rotate.
6. the driven wheel for starter as claimed in claim 1, is characterized in that, described the first gear massQuality be less than the quality of described the second gear mass.
7. the driven wheel for starter as claimed in claim 1, is characterized in that, described the first gear massIntensity be less than the intensity of described the second gear mass.
8. a starter, comprising: a motor, for being a moment of torsion by the electric energy conversion of battery; One transmissionMechanism, for passing to an engine by described moment of torsion; One controlling organization, for connecting and cut off startingCircuit between machine and described battery; It is characterized in that, described transmission mechanism comprises as claim 1To the driven wheel described in 7 any one.
9. starter as claimed in claim 8, is characterized in that, described starter be freely-supported beam type starter orBeam type starter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520712261.6U CN205243701U (en) | 2015-09-15 | 2015-09-15 | A drive gear for starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520712261.6U CN205243701U (en) | 2015-09-15 | 2015-09-15 | A drive gear for starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243701U true CN205243701U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520712261.6U Active CN205243701U (en) | 2015-09-15 | 2015-09-15 | A drive gear for starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523236A (en) * | 2015-09-15 | 2017-03-22 | 上海法雷奥汽车电器系统有限公司 | Driving gear used for starter |
-
2015
- 2015-09-15 CN CN201520712261.6U patent/CN205243701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523236A (en) * | 2015-09-15 | 2017-03-22 | 上海法雷奥汽车电器系统有限公司 | Driving gear used for starter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |