CN1102809C - Starting motor with epicyclic gear speed-reduction device - Google Patents
Starting motor with epicyclic gear speed-reduction device Download PDFInfo
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- CN1102809C CN1102809C CN 98125980 CN98125980A CN1102809C CN 1102809 C CN1102809 C CN 1102809C CN 98125980 CN98125980 CN 98125980 CN 98125980 A CN98125980 A CN 98125980A CN 1102809 C CN1102809 C CN 1102809C
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Abstract
The present invention relates to a starting motor with a planet gear speed reducer, which has an internal gear, a sun gear, a plurality of planet gears and an output shaft, wherein the internal-tooth gear is positioned and supported on a front support frame, the sun gear is positioned on a rotating shaft, the planet gears are positioned between the internal gear and the sun gear, and the output shaft is provided with a flange which supports the planet gears by support pins; an overrunning clutch of a pushing mechanism, which transmits the revolution of the planet gears to the output shaft so as to drive the output shaft to rotate, pushes a pinion gear out; the starting rotation is transmitted to the motor by the pinion gear, the internal gear is provided with a side plate part which faces the flange, the inner side surface of the side plate part is provided with an annular lubrication groove and a sliding connection seat, the annular lubrication groove is in integral forming and can be filled with lubrication, and the sliding connection seat forms a sliding contact with the flange. The present invention has the advantages of no abnormal sound, simple structure, etc., and can be used for preventing the flange from being worn.
Description
The present invention relates to start actuating motor engine, the band epicyclic reduction gear unit on the automobile etc., relate in particular to can prevent the internal-gear side plate produce the structure of wearing and tearing in the face of the face of output shaft flange.
Aftermentioned Fig. 5 is the cutaway view of the actuating motor major part of expression tradition band epicyclic reduction gear unit.Among the figure, the actuating motor 1 of band epicyclic reduction gear unit is a magnet-type, is by following formation.2 is yoke, integrally formed or install side plate 3 is set at its front end, and the magnetic pole 4 that is made of permanent magnet is installed on the inner peripheral surface of yoke 2.5 is armature core, armature coil 6 is installed on it, and is fixed in rotating shaft 7.Commutator 8 is fixed in the rotating shaft 7.Butt frame 9 is installed on the rear end of yoke 2, with the rearward end of bearing 10 supporting shafts 7.Brushgear 11 is installed on butt frame 9 and makes it and contact with commutator 8.
Front supporting frame 12 is installed on the front end of yoke 2, and the other end that will have the output shaft 13 of flange 14 with sliding bearing 15 is bearing on the end of front supporting frame 12.Dead eye 13a is set on the axle center of flange 14.On the inner peripheral surface of dead eye 13a, fixing the sliding bearing 17 of the shaft end of supporting shaft 7.Be located at the center taper hole 7a on rotating shaft 7 front ends and be located at dead eye 13a and insert pellet shot from a slingshot 18 between with interior center taper hole 13b.Pellet shot from a slingshot 18 stops moving to an end of output shaft 13.
But pinion 27 supportings are become folk prescription to transferring rotational motion with freewheel clutch 26 with the ejecting mechanism that engages with output shaft 13 formation helical splines.In addition, sliding bearing 15 sides at output shaft 13 are provided with the baffle plate 16 that stops pinion 27 to move to its other end.
The epicyclic reduction gear unit of being located in the front supporting frame 12 19 constitutes as follows.
Axle head in rotating shaft 7 forms central gear 20, and a plurality of planetary gears 21 mesh with central gear 20 respectively.Be fixed in fulcrum post 22 on the flange 14, by the described planetary gear 21 of sliding bearing 23 supportings.
Arranged outside at planetary gear 21 is made of the big improved plastics structural shape of mechanical strengths such as fibre reinforced plastics, and becoming with front supporting frame 12 supportings can be at the internal-gear 24 of prescribed limit rotation.Make rotation planetary gear 21 produce revolution with this internal-gear 24.
Side plate 24a and hub portion 24b are set integratedly, in order to a end by sliding bearing 25 supporting output shafts 13 on internal-gear 24.
Packing ring 28 in that side plate 24a and 14 settings of flange of internal-gear 24 are made of spring steel produces wearing and tearing in order to the medial surface 24g that prevents side plate 24a when carrying out relative the rotation with 14 of flanges.
Fig. 3, Fig. 4 represent internal-gear 24, packing ring 28 and the sliding bearing 25 of actuating motor 1 of the band epicyclic reduction gear unit of assembled state.Fig. 3 is an end view, and Fig. 4 is the cutaway view along the 4-4 line of Fig. 3.
In Fig. 3, Fig. 4, the limit rotation projection 24c that be located on the internal-gear 24, becomes semicircle tubular projection has entered in the receiving channel 12a (with reference to Fig. 5) that is located on the front supporting frame 12, the rotating range of regulation internal-gear 24 relative front supporting frames 12 is ended the rotation of internal-gear 24.In addition, make the breach 24d that front supporting frame 12 and yoke 2 that engage, not shown bolts are passed through peripheral part being provided with of internal-gear 24.
The action of the actuating motor of tradition band epicyclic reduction gear unit is as described below.
When the armature coil 6 of the actuating motor 1 of being with epicyclic reduction gear unit is powered, rotating shaft 7 rotations, central gear 20 also rotates.Planetary gear 21 is because of the rotation rotation of central gear 20, and with internal-gear 24 engagements that limited rotation by front supporting frame 12 and revolve round the sun, rotation is passed to output shaft 13.At this moment because the action of electromagnetic switch of the actuating motor 1 of band epicyclic gearing advances freewheel clutch 26 by axostylus axostyle (all not shown), pinion 27 with gear ring (not shown) engagement of engine flywheel with engine start.
In the actuating motor 1 of the tradition band epicyclic reduction gear unit that as above constitutes, between the side plate 24a of flange 14 and internal-gear 24, insert packing ring 28, packing ring 28 carries out relative the rotation with internal-gear 24 during rotation in contact, exists therefore and the problem of the abnormal sound that produces at packing ring 28 and 24 of internal-gears.
In addition, also have the problem of 2 packing rings 28 being packed into or omitting the packing ring 28 of packing in the assembling mistiming.
The present invention is just in order to address the above problem, and purpose is to provide abnormal sound that packing ring does not take place to result from, can prevents the wearing and tearing of internal-gear side plate, the actuating motor of band epicyclic reduction gear unit simple in structure.
The actuating motor of band epicyclic reduction gear unit of the present invention, possess and be bearing in the internal-gear that the enterprising professional etiquette of holder frame is rotated surely, be positioned at the central gear in the rotating shaft, be positioned between above-mentioned internal-gear and central gear, a plurality of planetary gears that are meshed with both and have the output shaft that supports above-mentioned planetary flange with fulcrum post, above-mentioned planetary revolution is passed to above-mentioned output shaft, make above-mentioned output shaft rotation, with the ejecting mechanism that is installed on the above-mentioned output shaft pinion is released, to start rotation with above-mentioned pinion and be passed to engine, above-mentioned internal-gear possesses the side plate in the face of above-mentioned flange, have integrally formed on the medial surface of above-mentioned flange facing of above-mentioned side plate, but the oil-way of filling lubricating oil, and has the seat that slips with above-mentioned flange sliding contact.
In addition, the above-mentioned oil-way of band planetary gear actuating motor of the present invention is circular groove.
The above-mentioned oil-way of band epicyclic reduction gear unit actuating motor of the present invention also can be a plurality of holes of ring-type configuration.
The above-mentioned seat that slips of band epicyclic reduction gear unit actuating motor of the present invention can be circular ring-type seat.
The above-mentioned seat that slips of band epicyclic reduction gear unit actuating motor of the present invention also can be a plurality of projections that ring-type disposes.
Simple declaration to accompanying drawing.
Fig. 1 is as the internal-gear of the actuating motor building block of the present invention's the 1st embodiment band epicyclic reduction gear unit and the end view of sliding bearing,
Fig. 2 is the cutaway view along the 2-2 line of Fig. 1,
Fig. 3 is the end view as internal-gear, packing ring and the sliding bearing of the actuating motor building block of tradition band epicyclic reduction gear unit,
Fig. 4 is the cutaway view along the 4-4 line of Fig. 3,
Fig. 5 is the cutaway view of the actuating motor structure of expression tradition band epicyclic reduction gear unit.
Embodiment 1.Fig. 1, Fig. 2 for the actuating motor building block of the band epicyclic reduction gear unit of the expression embodiment of the invention, be internal-gear 34 and the figure of sliding bearing 25, Fig. 1 is an end view, Fig. 2 is the cutaway view along the 2-2 line of Fig. 1.
Among the figure, compare same invariably part among the shape of internal-gear 34 and packing ring 28 and Fig. 4, to Fig. 3-5 in identical or equal member and position be marked with same label, and omit repeat specification.
Among Fig. 1 and Fig. 2, form by the integrally formed 34e of internal tooth portion, side plate 34a and wheel hub 34b by the internal-gear 34 that the big improved plastics structural shape of mechanical strengths such as fibre reinforced plastics constitutes.This internal-gear 34 is the rotation of being stipulated by front supporting frame 12 supportings by the holder frame, at present embodiment.The 34e of internal tooth portion forms the discoideus side plate 34a that approximate vertical is extended for to have formed the cylindric of the 34f of internal tooth portion at inner face on the one end.Cylindric hub portion 34b is set on the inner diameter end of side plate 34a.On the inner peripheral surface of hub portion 34b, be embedded sliding bearing 25.
With the aspectant medial surface 34g of flange 14 (with reference to Fig. 5) of side plate 34a go up be provided with form, with the seat that slips of flange 14 sliding contacts, the cylindric ring-type seat 34h that stretches out promptly is set.It is the circular groove of rectangle that section is set on ring-type seat 34h, i.e. oil-way 34j, filling lubricating oil in it.
In addition, the rotation restriction projection 34c that is located at the semicircle tubular on the internal-gear 34 enters the receiving channel 12a (with reference to Fig. 5) that is located on the front supporting frame 12, and relatively front supporting frame 12 and the rotating range of regulation internal-gear 34, and the rotation of termination internal-gear 34, and make the breach 34d of not shown bolt in the peripheral part setting of internal-gear by usefulness, more than all identical with Fig. 3, Fig. 4.
Because this embodiment is by as above constituting like that, can be in oil-way 34j the not shown lubricating oil of filling, even ring-type seat 34h forms relative rotation with flange 14, produces sliding contact, owing to flange 14 slides by lubricating oil with ring-type seat 34h, thereby unusual sound does not take place.
In addition, by reducing the frictional resistance between flange 14 and ring-type seat 34h, can prevent that flange 14 and ring-type seat 34h from producing wearing and tearing.
In addition, as long as can keep lubricating oil, the shape of oil-way 34j is not limited to endless groove, also can be the hole that keeps lubricating oil to use is set in the many places of ring-type seat 34h.
In addition, the ring-type seat 34h that oil-way is set also can be a plurality of projections of ring-type configuration, also can be that lubricated slotted eye is set on each projection.
In addition, in this embodiment, the magnetic pole 4 of band epicyclic reduction gear unit actuating motor is a magnet-type, yet also can be the structure of field coil.In addition, the front end of rotating shaft 7 is bearing on the output shaft 13 by sliding bearing 17, and this output shaft 13 is supported on internal-gear 34 by sliding bearing 25, yet also can be the structure that wheel hub is set on the side plate 3 of yoke 2 and uses the front end of bearing supporting rotating shaft 7.In the case, the holder frame also can be installed and replace side plate 3 on yoke 2.Like this, in the occasion that with bearing rotating shaft 7 front ends is bearing on side plate 3 or the middle holder frame, also can save the sliding bearing 25 of internal-gear 34.
The internal-gear 34 that oil-way 34j is set on it also is not limited to improved plastics structural shape, also can make with ferrous material or aluminium alloy.
Adopt the actuating motor of band epicyclic reduction gear unit of the present invention, be bearing in the internal-gear that the enterprising professional etiquette of holder frame is rotated surely owing to possess, be positioned at the central gear in the rotating shaft, be positioned between above-mentioned internal-gear and central gear, a plurality of planetary gears that are meshed with both and have the output shaft that supports above-mentioned planetary flange with fulcrum post, above-mentioned planetary revolution is passed to above-mentioned output shaft, make above-mentioned output shaft rotation, with the ejecting mechanism that is installed on the above-mentioned output shaft pinion is released, to start rotation with above-mentioned pinion and be passed to engine, above-mentioned internal-gear possesses the side plate in the face of above-mentioned flange, have integrally formed on the medial surface of above-mentioned flange facing of above-mentioned side plate, but the oil-way of filling lubricating oil, and has the seat that slips with above-mentioned flange sliding contact.
Therefore, seat is relative with flange to rotate the generation sliding contact even slip, and slides by lubricating oil with flange owing to slip seat, can prevent the generation of unusual sound with simple structure.In addition, prevent wearing and tearing because of lowering flange with the frictional resistance that slips seat.Simultaneously, can also prevent to adorn packing ring by mistake.
Adopt the actuating motor of band epicyclic reduction gear unit of the present invention, because its above-mentioned oil-way is circular groove, thus be convenient to the integrally formed of cell body, and be easy to machining.
According to the present invention, above-mentioned oil-way is a plurality of holes of ring-type configuration, so be convenient to the integrally formed of hole.
According to the present invention, the above-mentioned seat that slips is for circular ring-type seat, so be convenient to slip integrally formed.
According to the actuating motor of band epicyclic reduction gear unit of the present invention, because above-mentioned a plurality of projections of slipping seat for the ring-type configuration, so be convenient to slip the integrally formed of seat.
Claims (5)
1. actuating motor with epicyclic reduction gear unit, possess and be bearing in the internal-gear that the enterprising professional etiquette of holder frame is rotated surely, be positioned at the central gear in the rotating shaft, be positioned between above-mentioned internal-gear and central gear, a plurality of planetary gears that are meshed with both and have the output shaft that supports above-mentioned planetary flange with fulcrum post, above-mentioned planetary revolution is passed to above-mentioned output shaft, make above-mentioned output shaft rotation, with the ejecting mechanism that is installed on the above-mentioned output shaft pinion is released, to start rotation with above-mentioned pinion and be passed to engine, it is characterized in that above-mentioned internal-gear possesses the side plate in the face of above-mentioned flange, have integrally formed on the medial surface of above-mentioned flange facing of above-mentioned side plate, but the oil-way of filling lubricating oil, and has the seat that slips with above-mentioned flange sliding contact.
2. according to the described actuating motor of claim 1, it is characterized in that above-mentioned oil-way is circular groove.
3. according to the described actuating motor of claim 1, it is characterized in that above-mentioned oil-way is a plurality of holes of ring-type configuration.
4. according to the described actuating motor of arbitrary claim among the claim 1-3, it is characterized in that the above-mentioned seat that slips is circular ring-type seat.
5. according to the described actuating motor of claim 3, it is characterized in that above-mentioned a plurality of projections of slipping seat for the ring-type configuration.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98125980 CN1102809C (en) | 1998-12-30 | 1998-12-30 | Starting motor with epicyclic gear speed-reduction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98125980 CN1102809C (en) | 1998-12-30 | 1998-12-30 | Starting motor with epicyclic gear speed-reduction device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1260626A CN1260626A (en) | 2000-07-19 |
CN1102809C true CN1102809C (en) | 2003-03-05 |
Family
ID=5229439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 98125980 Expired - Lifetime CN1102809C (en) | 1998-12-30 | 1998-12-30 | Starting motor with epicyclic gear speed-reduction device |
Country Status (1)
Country | Link |
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CN (1) | CN1102809C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004260893A (en) * | 2003-02-25 | 2004-09-16 | Mitsuba Corp | Starter motor |
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1998
- 1998-12-30 CN CN 98125980 patent/CN1102809C/en not_active Expired - Lifetime
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Publication number | Publication date |
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CN1260626A (en) | 2000-07-19 |
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Granted publication date: 20030305 |