CN202673535U - Novel reducing mechanism used for automobile starter - Google Patents
Novel reducing mechanism used for automobile starter Download PDFInfo
- Publication number
- CN202673535U CN202673535U CN 201220311112 CN201220311112U CN202673535U CN 202673535 U CN202673535 U CN 202673535U CN 201220311112 CN201220311112 CN 201220311112 CN 201220311112 U CN201220311112 U CN 201220311112U CN 202673535 U CN202673535 U CN 202673535U
- Authority
- CN
- China
- Prior art keywords
- gear
- reducing mechanism
- planet carrier
- automobile starter
- actuation gear
- 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 discloses a novel reducing mechanism used for an automobile starter. The novel reducing mechanism used for the automobile starter comprises a sun gear, a planet gear, an armature rotating shaft gear, an isolator gear and a planet carrier, wherein the planet gear is arranged on the planet carrier, the sun gear is connected with one end of the planet carrier by virtue of the planet gear, the armature rotating shaft gear is meshed with the planet gear, the other end of the planet carrier is connected with the armature rotating shaft gear to form first-stage speed reduction, and the isolator gear is also connected with a driving device to form second-stage speed reduction. According to the novel reducing mechanism used for the automobile starter disclosed by the utility model, planet speed reduction is utilized, a first-stage speed reduction gear is additionally arranged for realizing the second-stage speed reduction, the volume of the novel reducing mechanism is smaller, the structure is compact, and the reducing ratio is high.
Description
Technical field
The utility model relates to a kind of starter slowing-down structural establishment, particularly relates to a kind of Novel speed reducing mechanism for automobile starter.
Background technique
The power supply of direct current generator is direct current.Its direct current generator internal main will comprise stator and rotor, and stator comprises the devices such as magnetic pole, support, commutation stage, brush; Rotor comprises armature core, armature winding, commutator, axle, fan etc.Stator provides magnetic field, and DC electrical source for direct current, makes it be subject to the constant Ampere force of direction to armature winding in magnetic field, to realize the rotation of rotor.
The good decelerability of direct current generator is widely used in Electric Traction.Its ways of deceleration has two kinds: variable voltage control, the excitation control of DC motor speed.Variable voltage control have regulate thin, can realize stepless change, the characteristics such as flatness is good, the speed regulation process energy consumption is low, good economy performance, speed-regulating range width.The excitation control of DC motor speed is to change the magnetic induction intensity that stator coil produces.The superior point of the excitation control of DC motor speed is that pondage is little, flatness good, little, the advantages such as energy consumption is low, good economy performance of investment.
For example, application number is CN200520015327.2, publication number is the Chinese patent " planetary speed reducing vehicle starter " of CN2839609, a kind of planetary speed reducing vehicle starter is disclosed, comprise the armature shaft gear, reducing gear, ring gear, the reducing gear wheel shaft that connect successively, the end of described reducing gear wheel shaft is with the actuation gear that is connected with the flywheel of motor, and described reducing gear wheel shaft is provided with overrunning clutch, is used for transfering to overrunning clutch to make the shift fork of actuation gear and flywheel engagement; Described reducing gear is planet gear reducing mechanism, and described planet gear reducing mechanism comprises and be no less than two planetary pinions, described planetary pinion respectively with armature shaft gear, ring gear engagement, the circumferential distance between the adjacent planetary pinion equates in twos.The product deficiency of this patent is, starts damping large, and operating ambient temperature is low, and maintenance is inconvenient.
The model utility content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, proposes a kind of Novel speed reducing mechanism for automobile starter.The utility model utilizes planetary reduction gear, realize double reduction by increasing the primary speed-down gear reduction, what overcome the prior art existence starts damping large, and operating ambient temperature is low, the technical problem Novel variable speed kinds of drive such as maintenance is inconvenient, can effectively optimize transmission scheme, mechanism's small volume, compact structure, reduction speed ratio is large, so that transmission is more effective, the life-span is longer, characteristics easy to maintenance.
The utility model is realized by the following technical solutions:
A kind of Novel speed reducing mechanism for automobile starter, comprise sun gear, planetary pinion, armature shaft gear, clutch gear and planet carrier, described planetary pinion is installed on the planet carrier, described sun gear is connected with an end of planet carrier by planetary pinion, described armature shaft gear and planetary pinion engagement, described planet carrier and armature shaft gear are connected to form the one-level planetary reduction gear, it is characterized in that: described clutch gear and drive unit are connected to form double reduction.
Described drive unit comprises actuation gear and actuation gear rotating shaft, and actuation gear is enclosed within the actuation gear rotating shaft, clutch gear and actuation gear engagement.
Described drive unit also comprises the oil-impregnated bearing that is sleeved in the actuation gear rotating shaft and the secondary shift fork that is sleeved on the actuation gear.
One end of described secondary shift fork is connected with actuation gear, makes it free rotation; The joint of secondary shift fork and actuation gear is provided with nylon back plate; The end of the secondary shift fork the other end is provided with pad and collar, and secondary shift fork snaps in (the draw-in groove width is greater than secondary shift fork thickness) in the one-way element draw-in groove by an end that is provided with pad and collar.
Described actuation gear rotating shaft is provided with the elastic cylinder pin.
Described sun gear is fixed end, is connected with planet carrier by planetary pinion.
Described planet carrier is that internal spline is connected with the Placement of clutch gear.
Working principle:
Behind the electrical power, an end of shift fork is installed on the shift fork ring of one-way element, and the other end is installed on the moving iron core of magnetic switch; One-way element is got by shift fork, and actuation gear is because secondary shift fork and one-way element interlock reaction also realize the synchronization motion with one-way element.This moment, motor began rotation.When engine start was finished, Speed of Reaction Wheels was greater than motor speed, and one-way element returns, and prevented that actuation gear is owing to counter the dragging of launched machine damaged.Whole working procedure is complete.
The utility model compared with prior art, its advantage is:
1, the utility model utilizes planetary reduction gear, realizes double reduction by increasing the primary speed-down gear reduction, mechanism's small volume, and compact structure, reduction speed ratio is large.
2, the utility model adopts the installation form of the starter motor of this deceleration form to change, and only need to or reduce the fine setting that Shim just can be realized the centre distance of actuation gear and flywheel gear in the attachment face interpolation, and it is larger to install and use mobility.
3, the utility model adopts clutch gear not contact with the engine flywheel direct geared, reduces the scrappage of one-way element, can effectively reduce scrap cost.
4, the utility model is realized the larger starting torque of actuation gear by larger reduction speed ratio, can start to be in low temperature, plays the motor that the large grade of dynamic damping is difficult to start.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model transmission sketch
Fig. 3 is the utility model driving device structure schematic representation
Fig. 4 is the utility model actuation gear structural representation
Fig. 5 is the secondary shift fork of the utility model and one-way element connection diagram
Mark among the figure: 1, sun gear, 2, planet wheel, 3, planet carrier, 4, the armature shaft gear, 5, shift fork, 6, clutch gear, 7, actuation gear, 8, oil-impregnated bearing, 9, secondary shift fork, 10, nylon back plate, 11, pad, 12, collar.
Embodiment
Embodiment 1:
A kind of Novel speed reducing mechanism for automobile starter, comprise sun gear 1, planetary pinion 2, armature shaft gear 4, clutch gear 6 and planet carrier 3, described planetary pinion 2 is installed on the planet carrier 3, described sun gear 1 is connected with an end of planet carrier 3 by planetary pinion 2, described armature shaft gear 4 and planetary pinion 2 engagements, described planet carrier 3 is connected to form primary speed-down with armature shaft gear 4, velocity ratio is 1 between planet carrier and the clutch gear, and described clutch gear 6 also is connected to form double reduction with drive unit.
In the utility model, Novel speed reducing mechanism comprises that also an end is installed on the shift fork ring of one-way element, and the other end is installed in the shift fork 5 on the moving iron core of magnetic switch.
In the utility model, described drive unit comprises actuation gear 7 and actuation gear rotating shaft, and actuation gear 7 is enclosed within the actuation gear rotating shaft, and clutch gear 6 and actuation gear 7 engagements form double reduction.
In the utility model, described drive unit also comprises the oil-impregnated bearing 8 that is sleeved in the actuation gear rotating shaft and the secondary shift fork 9 that is sleeved on the actuation gear 6.
In the utility model, an end of described secondary shift fork 9 is connected with actuation gear 7 Spielpassung, makes it free rotation; Secondary shift fork 9 is provided with nylon back plate 10 with the joint of actuation gear 7; The end of secondary shift fork 9 the other ends is provided with pad 11 and collar 12, and secondary shift fork 9 snaps in the one-way element draw-in groove by an end that is provided with pad 11 and collar 12, and the draw-in groove width is greater than secondary shift fork thickness.
In the utility model, described sun gear 1 fixed end is connected with planet carrier 3 by planetary pinion 2.
In the utility model, described planet carrier 3 is that internal spline is connected with the Placement of clutch gear 6.
As shown in Figure 1, the utility model in use, the utility model also comprises electric machine rotor, casing, front and rear covers, brush holder, brush, magnetic switch, one-way element, planet axis, shift fork, the primary clusterings such as actuation gear.
During work, armature shaft gear 4 meshes with planet wheel 2, planet wheel 2 and sun gear 1 engagement, and sun gear 1 is fixing, so that planet carrier 3 rotates, realizes a planetary reduction gear of armature shaft gear 4 and planet carrier 3 herein.
And adopt internal spline to be connected between planet carrier 3 and the clutch gear 6, and do not realize between the one-way element slowing down, clutch gear 6 meshes with actuation gear 7, realizes secondary speed-reducing herein.
Behind the electrical power, one-way element is got by shift fork, and actuation gear is because secondary shift fork 9 and one-way element interlock reaction realize also and the synchronization motion of one-way element that this moment, motor began rotation.When engine start was finished, Speed of Reaction Wheels was greater than motor speed, and one-way element returns, and prevented that actuation gear is owing to counter the dragging of launched machine damaged.Whole working procedure is complete.
Embodiment 2:
A kind of Novel speed reducing mechanism for automobile starter, comprise sun gear 1, planetary pinion 2, armature shaft gear 4, clutch gear 6 and planet carrier 3, described planetary pinion 2 is installed on the planet carrier 3, described sun gear 1 is connected with an end of planet carrier 3 by planetary pinion 2, described armature shaft gear 4 and planetary pinion 2 engagements, described planet carrier 3 is connected to form primary speed-down with armature shaft gear 4, velocity ratio is 1 between planet carrier and the clutch gear, and described clutch gear 6 also is connected to form double reduction with drive unit.
In the utility model, described actuation gear rotating shaft is provided with the elastic cylinder pin.
Claims (7)
1. Novel speed reducing mechanism that is used for automobile starter, comprise sun gear (1), planetary pinion (2), armature shaft gear (4), clutch gear (6) and planet carrier (3), described planetary pinion (2) is installed on the planet carrier (3), described sun gear (1) is connected with an end of planet carrier (3) by planetary pinion (2), described armature shaft gear (4) and planetary pinion (2) engagement, described planet carrier (3) is connected to form primary speed-down with armature shaft gear (4), and it is characterized in that: described clutch gear (6) also is connected to form double reduction with drive unit.
2. a kind of Novel speed reducing mechanism for automobile starter according to claim 1, it is characterized in that: described drive unit comprises actuation gear (7) and actuation gear rotating shaft, actuation gear (7) is enclosed within the actuation gear rotating shaft, clutch gear (6) and actuation gear (7) engagement.
3. a kind of Novel speed reducing mechanism for automobile starter according to claim 2 is characterized in that: described drive unit also comprises the oil-impregnated bearing (8) that is sleeved in the actuation gear rotating shaft and is sleeved on secondary shift fork (9) on the actuation gear (7).
4. a kind of Novel speed reducing mechanism for automobile starter according to claim 3, it is characterized in that: an end of described secondary shift fork (9) is connected with actuation gear (7), and secondary shift fork (9) is provided with nylon back plate (10) with the joint of actuation gear (7); The end of secondary shift fork (9) the other end is provided with pad (11) and collar (12).
5. a kind of Novel speed reducing mechanism for automobile starter according to claim 3, it is characterized in that: described actuation gear rotating shaft is provided with the elastic cylinder pin.
6. a kind of Novel speed reducing mechanism for automobile starter according to claim 1, it is characterized in that: described sun gear (1) is fixed end, is connected with planet carrier (3) by planetary pinion (2).
7. a kind of Novel speed reducing mechanism for automobile starter according to claim 1, it is characterized in that: described planet carrier (3) is that internal spline is connected with the Placement of clutch gear (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311112 CN202673535U (en) | 2012-06-29 | 2012-06-29 | Novel reducing mechanism used for automobile starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311112 CN202673535U (en) | 2012-06-29 | 2012-06-29 | Novel reducing mechanism used for automobile starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673535U true CN202673535U (en) | 2013-01-16 |
Family
ID=47494444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311112 Expired - Fee Related CN202673535U (en) | 2012-06-29 | 2012-06-29 | Novel reducing mechanism used for automobile starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673535U (en) |
-
2012
- 2012-06-29 CN CN 201220311112 patent/CN202673535U/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 |
Granted publication date: 20130116 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |