CN109812367A - A kind of starter - Google Patents
A kind of starter Download PDFInfo
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- CN109812367A CN109812367A CN201910227825.XA CN201910227825A CN109812367A CN 109812367 A CN109812367 A CN 109812367A CN 201910227825 A CN201910227825 A CN 201910227825A CN 109812367 A CN109812367 A CN 109812367A
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- starting dog
- starting
- pawl seat
- friction plate
- dog
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- Mechanical Operated Clutches (AREA)
Abstract
The present invention provides a kind of starters, belong to field of mechanical technique.It solves the problems, such as that existing starter and starting cup cooperate unstable, discontinuity.It includes body, set on clutch machine intracorporal shaft and be connected in shaft, clutch includes the pawl seat for being axially fixed in shaft one end and several starting dogs being circumferentially distributed in pawl seat, each starting dog is hinged with pawl seat, pawl seat side is equipped with friction plate and elastic component, shaft one end is fixed with driving gear, driving gear is located in pawl seat, the engaging section being meshed with driving gear is equipped on the inside of each starting dog, friction plate leans with body one side wall always under the elastic force effect of elastic component, friction plate is equipped with towards the stopper section of pawl seat, when shaft edge makes starting dog stretch out the rotation of pawl seat direction, stopper section and the inner sidewall of one of starting dog lean.It has that stability is more preferable, is more uniformly stressed, long service life, advantages of simple structure and simple.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of starter.
Background technique
Traditional hand starter all includes shell and is respectively provided with shaft inside the shell and scroll spring, shaft axis
Inside the shell and shaft passes through scroll spring to limit, the inner end of scroll spring connect with shaft, and the outer end of scroll spring is fixed
On the shell, one end connection actuating mechanism of shaft and the other end connection clutch of shaft, when in use by starter
Shell is fixed on the casing of air-cooled diesel engine, and clutch is located in the starting cup on air-cooled diesel engine flywheel,
User first passes through actuating mechanism and shaft rotation is driven to tighten the elastic force of scroll spring, then the elastic force of scroll spring is recycled to release
It puts to drive shaft high speed reverse rotation, the starting dog in clutch throws away outward at high speeds and beats on starter and make flywheel
High-speed rotation.But strength of starting dog when throwing away is very big, so that there is hardness impact with starting cup contact position and makes in starting dog
It is even broken at deformation, this problem results in starter and is frequently necessary to overhaul and replace components.
To solve the above-mentioned problems, Chinese patent is it is proposed that excessively a kind of application No. is 201210450531.1 air-cooled diesels
Machine starter, it includes shell and shaft, and shaft is hollow shaft, is inside fixedly installed mandrel, and shaft one end is rotationally connected with
Enclosure bottom center is set with scroll spring fixed plate, the shaft section between scroll spring fixed plate and enclosure bottom in shaft
On be coaxially installed with driven gear, ratchet is set between driven gear and enclosure bottom, is engaged with preload piece on driven gear,
Preload piece one end, which stretches out in outside shell, to be made preload end, pawl to be engaged on ratchet, and pawl is fixed on enclosure bottom by pawl shaft
On, pawl shaft one end stretches out in shell and makees starting end, is provided between driven gear and the opposite end face of ratchet and ratchet can be made to exist
The slipping device of driven gear end tank wobble is provided with scroll spring in the shaft section between scroll spring and shell aperture,
Scroll spring inner end is connected to shaft, and scroll spring outer end is fixed in scroll spring fixed plate, fixed peace on the shaft other end
It equipped with pawl seat is started, starts and is evenly equipped at least two rotatable starting dogs on the end face of pawl seat, start and be fixedly installed in pawl seat
There is the pawl disk for pushing starting dog to be unfolded, is provided with pawl mouth corresponding with starting dog on pawl disk outer wall, pawl disc side sets one
Friction plate is cased with a spring on mandrel, and spring withstands pawl disk and makes pawl disk and friction plate tight fit.When in use, handle in advance
Scroll spring, which tenses, tightens clockwork spring, and ratchet is limited by pawl and is fixed, and driven gear then can be under the action of slipping device
A small distance is rotated by the elastic potential energy of scroll spring, shaft is rotated as driven gear is done, and the rotation of shaft has caused
The rotation of pawl seat, and then cause the rotation of pawl disk, but by the effect of friction plate, the revolving speed of pawl disk wants much lower, starting dog
It leans with the pawl mouth side wall on pawl disk and starting dog will be made to rotate around hinge joint, thus can smoothly push away starting dog
Out outside the pawl mouth of pawl disk, i.e., so that the process of starting dog expansion, this makes it possible to starting dog is protruded into diesel engine starting cup in advance
Hole in, subsequent driven gear is combined with ratchet and is limited by pawl；Finally when pawl unclamps, the elastic potential of scroll spring
It can all discharge, drive the rotation at full speed of diesel engine flywheel again with this, and then start diesel engine.
Above-mentioned air-cooled diesel engine starter changes traditional manual cranking thinking, and first starting dog is packed on diesel engine and is opened
In the hole of dynamic cup, then run at high speed that diesel engine is driven to start, rather than starting dog is directly sent into bavin at high speeds
In the hole of oil start cup, the problem of starting dog is impacted with diesel engine starting cup hardness has been well solved.But it there is also
More clearly disadvantageous place: although each starting dog is to be realized to be unfolded and be hinged on the same pawl seat by pawl disk
On, but each starting dog is actually mutually independent, and will appear some starting dogs on startup is smoothly combined with starting cup
Together and some starting dogs and starting cup between and be not formed effect connection the case where, will cause in this way between each starting dog by
Power is uneven, and then impacts to the fitment stability between starter and starting cup.It is some other such as application No. is
201310048731.9 disclosed air-cooled diesel engine safety starter, application No. is air-cooled disclosed in 201310278516.8
Diesel engine exempts to draw starter and application No. is the manual starter of the internal-combustion engine etc. disclosed in 201220611030.2 also all to exist
Identical problem.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, proposing a kind of clutch of starter,
The technical problem to be solved is that how to improve and start the fitment stability of cup, make to be more uniformly stressed.
Object of the invention can be realized by the following technical scheme:
A kind of starter, including body, set on clutch machine intracorporal shaft and be connected in shaft, clutch
Structure includes the pawl seat for being axially fixed in shaft one end and several starting dogs being circumferentially distributed in pawl seat, each starting dog with
Pawl seat is hinged and each starting dog can be stretched out outside pawl seat around hinge joint or be retracted in pawl seat, and the pawl seat side is equipped with and rubs
Pad and elastic component, which is characterized in that described shaft one end is fixed with driving gear, and driving gear is located in pawl seat, each to start
Be equipped with the engaging section being meshed with driving gear on the inside of pawl, friction plate in the case where the elastic force of elastic component acts on always with body side
Wall leans, and friction plate is equipped with towards the stopper section of pawl seat, the backstop when shaft edge makes starting dog stretch out the rotation of pawl seat direction
Portion and the inner sidewall of one of starting dog lean.
Starter at work, and as the starter in background technique first put aside energy band turn axis high-speed rotation
Then energy inverts a small distance first using shaft open clutch and mutually tie with the starting cup on engine flywheel
It closes, finally again discharges the energy of savings completely to drive shaft and starting cup high-speed rotation.With the prior art the difference is that
This starter stationary drive gear in shaft, driving gear are located in pawl seat, are equipped on the inside of each starting dog and mutually nibble with gear
The engaging section of conjunction, and each starting dog is all hinged in pawl seat, when shaft first inverts, i.e. edge keeps starting dog outside in this way
It will drive gear synchronous rotation when the direction rotation of opening, then since the speed reversal of shaft at this time is slow and entire pawl seat
With certain weight, thus it is initial when can be considered that gear, each starting dog and pawl seat are circumferentially fixed relationship.But due to this starting
Device again between shaft and friction plate be provided with elastic component, friction plate elastic component elastic force effect under always with body one side wall
It leans, while friction plate is equipped with and leans towards the stopper section of pawl seat, stopper section and the inner sidewall of one of starting dog,
The effect of elastic component there is frictional force so that make friction plate be not susceptible to lesser push away always between friction plate and body
Power and rotate, and the stopper section on friction plate and the inner sidewall of one of starting dog lean, then being the equal of utilizing
Friction plate plays drag effect to the rotation of entire pawl seat, and such pawl seat has just been locked rotation, however drives gear
Rotatory force is delivered on each starting dog again and is applied to the barrier force on corresponding starting dog in conjunction with upper stopper section, thus the starting dog
It will be outwardly opened around hinge joint, to own eventually by the engagement between driving gear and remaining starting dog
Starting dog is outwardly opened and is combined together with starting cup.When the energy finally put aside is discharged completely so that shaft high-speed rotation
When, starting dog pushes friction plate to overcome the effect of elastic component and rotate synchronously.
In shaft stationary drive gear and engaging section is arranged in this starter on the inside of each starting dog, and each starting dog is logical
Engaging section is crossed to be meshed with driving gear so that each starting dog can be coupled by driving gear shape at linkage to be formed one it is whole
Body can so make entire clutch and the cooperation started between cup more stable, will not go out as the prior art
Existing a part of starting dog and start the state that cupuliform is at effective cooperation and another part starting dog is hanging, while starting the anti-work of cup
It firmly can also be divided by each starting dog rather than individually be undertaken, therefore the stress of each starting dog is also more uniform, makes
With lasting a long time, be hardly damaged.And it is arranged through this structure so that this starter is got rid of needs band in the prior art
The pawl disk of pawl mouth realizes the drawbacks of each starting dog is opened, so that the quantity of starting dog can also be not limited, i.e. starting dog
Quantity can be set relatively it is more, the power correspondingly divided on each starting dog is just smaller, service life with regard to longer, and
Structure is also simplified, cost is lower.
In above-mentioned starter, described starting dog one end is hinged end, and the other end of starting dog is connecting end, described to nibble
Conjunction portion is several engaging tooths on the inside of the hinged end, and the inner sidewall of stopper section and connecting end leans.
Several engaging tooths on the inside of hinged end are set by engaging section, each starting dog passes through engaging tooth and driving gear
Between form firm gear drive, thus further improve clutch and start cup fitment stability, and by
Power is more uniform；The inner sidewall of stopper section and connecting end is leant simultaneously, can make the torque generated bigger in this way, to make
Stopper section can more easily control push starting dog to stretch out outside pawl seat around hinge joint, this also ensure that stabilization to a certain extent
Property.
In above-mentioned starter, circumferentially arranged with several identical as starting dog quantity and one-to-one correspondence on the outside of the pawl seat
Resigning recess, the connecting end of each starting dog is located at corresponding resigning indent, and stopper section is worn from one of resigning indent
It crosses.
Resigning recess is set on the outside of pawl seat, the connecting end of each starting dog is made to be located at corresponding resigning indent, stopper section
It passes through from one of resigning indent, stopper section can be impacted to avoid pawl seat in this way, keep stopper section mutual with pawl seat
It is independent, while stopper section can lean when shaft is rotated with connecting end inner sidewall again, to match with driving gear
Each starting dog is set to be capable of forming linkage to improve and start the fitment stability of cup.
In above-mentioned starter, the pawl seat includes two substrates disposed in parallel, drives gear between two substrates,
Two substrates circumferentially go out several lugs identical with starting dog quantity, and each lug on two substrates is flush, each to start
The hinged end of pawl passes through pin shaft and is hinged between the correspondence lug of two substrates, is connected between adjacent two lug on same substrate
Inner recess forms resigning recess with the inner recess at position on two substrates.
When assembling, two substrates are configured in such a way that each lug aligns, each inner recess on such two substrate
And be flush, after two substrates are connected to become pawl seat using pin shaft, the inner recess at same position on two substrates is just
Resigning recess needed for pawl seat can be formed.
In above-mentioned starter, there is recess one, the hinged end of the starting dog on the inside of the connecting end of the starting dog
Outside has recess two, and when each starting dog retracts in pawl seat, the connecting end end of each starting dog is located at the recess of adjacent starting dog
At two, outermost engagement threaded portion is located at the recess one of another adjacent starting dog on each starting dog.
When driving gear that each starting dog is driven to retract in pawl seat under the cooperation of stopper section, the connecting end of each starting dog is equal
It is to be swung around hinge joint into pawl seat, then each engaging tooth being arranged on the inside of hinged end for being equivalent to should be outside
It swings, the retraction of connecting end on adjacent starting dog is influenced when swinging out in order to avoid engaging tooth on the outermost side, because
Recess one is arranged in this on the inside of the connecting end of starting dog, recess two is arranged on the outside of the hinged end of starting dog, in this way when each starting dog
When retracting in pawl seat, the connecting end end of each starting dog can be located at the recess two of adjacent starting dog, while on each starting dog most
The engaging tooth in outside can then be located at the recess one of another adjacent starting dog.Both made so each starting dog by with sliding tooth
The engagement of wheel forms entirety, while not interfering with the normal opening and retraction of each starting dog again.
In above-mentioned starter, the stopper section is in the sheet of strip, and stopper section is fixed with one with friction plate, and only
Stopper is located in one of between the connecting end end of starting dog and the recess two of adjacent starting dog.
The connecting end of starting dog is located at the resigning indent of pawl seat, and the connecting end of starting dog is position when retracting in pawl seat
It is set as sheet in long strip at the recess two of adjacent starting dog, therefore by stopper section, this makes stopper section than relatively thin,
It can just be passed through between the connecting end end of one of starting dog and the recess two of adjacent starting dog, to guarantee backstop
Portion can lean that each starting dog linkage is driven to stablize with the cooperation for improving and starting cup with the connecting end inner sidewall of starting dog
Property.
In above-mentioned starter, the starting dog is in the bulk that is gradually increased to hinged end of self join end, outside connecting end
Side wall is inclined surface, is equipped with arc surface on the outside of hinged end, circular arc mating surface, connecting end are connected between inclined surface and arc surface
Towards the face of friction plate be equipped with convex block, convex block close to connecting end end side be evagination circular arc abutment face, circular arc against
Towards being in 90 ° of angles between the face of friction plate, convex block is located at the inner recess on the substrate of friction plate for face and connecting end, when
Convex block side wall can lean with the inner wall of inner recess when starting dog is stretched out around hinge joint to outside pawl seat.
The combination of each starting dog of starter and starting cup is to outwardly open each starting dog in advance in the prior art
And pass through on starting cup in corresponding hole, and in this starter the combination of each starting dog and starting cup in the prior art not
Together.Specifically, since each starting dog is in the bulk that self join end is gradually increased to hinged end, the connecting end outside of each starting dog
Wall and outer convex arc surface or inclined-plane, when each starting dog outwardly opens process, the connecting end end lateral wall of each starting dog can edge
The inner peripheral surface sliding of starting cup, each connecting end end of final starting dog can slide into the hole on starting cup, and subsequent
Sliding in offseted and be close together by the one side wall in hole in circular arc mating surface and starting cup, be equivalent to starting dog and start the hole of cup
A wedge-like engagement relationship is formd between side wall, and each starting dog is made by this structure and is more stepped up with the connection for starting cup
Close, stability when work is higher.
Starting dog from slide into hole lean to circular arc mating surface and hole inner wall during be still it is in the open state,
If opening degree of the starting dog in hole is excessive, then will appear starting dog when shaking tight scroll spring next time be stuck in hole and can not
Retract the situation in pawl seat.For this purpose, setting of this starter by convex block, can be used to be formed limitation starting dog open angle
Structure, specifically when starting dog is opened to certain angle, the lateral wall of convex block will lean with inner recess one side wall, thus
So that starting dog can not be further continued for opening.By the limitation to starting dog open angle is opened, it can prevent starting dog from excessively opening
The problem of starting dog caused by hole can not normally bounce back, and rub in the circular arc abutment face of convex block and connecting end direction
Between the face of piece be in 90 ° of angles, it is meant that when connecting end end be located at starting cup hole in when convex block on partial arc against
Face can lean with the inner wall of starting cup, can increase each starting dog in this way and start the connection area between cup, thus into one
Step improves the fitment stability with starting cup.
In above-mentioned starter, the friction plate outer, which has, cuts out notch, and the stopper section is by cutting out the one of notch
Place's inner wall extends to the direction close to pawl seat, and the junction of friction plate and stopper section has to the close pawl seat side of friction plate
Recessed portion.
When producing friction plate, first disk is stamped out on one piece of steel disc as friction plate, then from friction plate outer to
Inside cutting out certain length makes formation on friction plate cut out notch, will form one end on such friction plate and cuts out inner wall at notch one
It is fixedly connected with and the other end and the strip structure cutting out another place's inner wall of notch and mutually disconnect, then again by strip structure to friction plate
Side fold can be used as stopper section.After strip structure turned down forming stopper section, using tool to friction plate with only
The junction of stopper is squeezed to form recessed portion, and recessed portion can increase the bonding strength between stopper section and friction plate,
Stopper section stress is avoided to occur deforming and causing starting dog that cannot normally open.
In above-mentioned starter, the quantity of the stopper section is two, and friction plate outer is symmetrical, and there are two cut out
Notch, two cut out that cutting out for notch is contrary, two stopper sections respectively with it is corresponding cut out notch one at inner wall be fixedly connected with.
The quantity of stopper section is two, then two stopper sections are worn from two resigning indents in pawl seat naturally in cooperation
It crosses, each starting dog can be enable more easily to be opened in this way.
In above-mentioned starter, shaft outer end axial restraint has retaining ring, and shaft outer end is arranged with baffle, and baffle supports
It leans against on retaining ring, for elastic component between baffle and friction plate, elastic component is wave spring washer, each wave of wave spring washer
Paddy is resisted against on baffle, each wave crest of wave spring washer be resisted against on friction plate or elastic component be spring, the one of spring
End is resisted against on baffle, and the other end of spring is resisted against on friction plate.
Using wave spring washer as elastic component, each trough of wave spring washer is resisted against on baffle, waveform elastic
Each wave crest of washer is resisted against on friction plate, just enables friction plate to lean always with the one side wall of body in this way and to rubbing
The rotation of pad generates certain resistance, and then so that friction plate is formed resistance to the rotation of pawl seat and enable each starting dog
It outwardly opens.
Using spring as elastic component, spring one end is resisted against on baffle, and the other end of spring is resisted against on friction plate, this
Sample just enables friction plate to lean always with the one side wall of body and generates certain resistance to the rotation of friction plate, in turn
So that friction plate is formed resistance to the rotation of pawl seat and each starting dog is enable to outwardly open.
Compared with prior art, this starter has the advantage that
1, stationary drive gear and engaging section is set on the inside of each starting dog in shaft, each starting dog passes through engagement
Portion is meshed with driving gear and is coupled to form an entirety, keeps entire clutch and the cooperation started between cup more steady
Fixed, the stress of each starting dog is also more uniform, and service life is longer, is hardly damaged；
2, the driving gear mode that adds stopper section to match gets rid of this starter to need band pawl mouth in the prior art
Pawl disk come realize each starting dog open the drawbacks of, the quantity of starting dog is no longer influenced by limitation, i.e. the quantity of starting dog can be set
Set relatively more, the power correspondingly divided on each starting dog is just smaller, and service life is with regard to longer, and structure also obtains
Simplification, cost are lower；
3, circular arc mating surface is set on starting dog, and starting dog can be matched by circular arc mating surface with starting cupuliform wedgewise
Conjunction relationship, thus make clutch and start cup connection it is even closer, stability when work is higher；
4, on starting dog setting be located at inner recess at convex block, convex block close to connecting end end side be evagination circular arc
Abutment face, circular arc abutment face and connecting end can carry out starting dog open angle towards being in 90 ° of angles between the face of friction plate
Limitation guarantees that starting dog can normally bounce back, while circular arc abutment face is capable of increasing each starting dog and starts the connection between cup
Area, to further increase the fitment stability with starting cup.
Detailed description of the invention
Fig. 1 is the cross-sectional view of this starter embodiment one.
Fig. 2 is the schematic diagram of this starter.
Fig. 3 is the schematic diagram of another angle of this starter.
Fig. 4 is the schematic diagram in this starter embodiment one between body, friction plate and elastic component.
Fig. 5 is the schematic diagram between friction plate in this starter, pawl seat and starting dog.
Fig. 6 is the transverse sectional view between friction plate in this starter, starting dog and driving gear.
Fig. 7 is the part explosive view in this starter between pawl seat and starting dog.
Fig. 8 is the explosive view in this starter at pawl seat.
Fig. 9 A is the schematic diagram of starting dog in this starter.
Fig. 9 B is the schematic diagram of another angle of starting dog in this starter.
Figure 10 A is schematic diagram when each starting dog retracts in this starter.
Figure 10 B is schematic diagram when each starting dog stretches out in this starter.
Figure 11 A is the schematic diagram of friction plate in this starter.
Figure 11 B is the schematic diagram of another angle of friction plate in this starter.
The schematic diagram that Figure 12 is clutch in this starter when starting cup and combine.
The transverse sectional view that Figure 13 is clutch in this starter when starting cup and combine.
Figure 14 is the optical cable at locking plate in this starter, starting axis and limit film.
In figure, 1, body；2, shaft；2a, annular protrusion；3, pawl seat；3a, resigning recess；3b, substrate；3b1, lug；
3b2, inner recess；4, starting dog；4a, engaging section；4b, recess one；4c, recess two；4d, circular arc mating surface；4e, convex block；4e1,
Circular arc abutment face；5, friction plate；5a, stopper section；5b, notch is cut out；5c, recessed portion；6, elastic component；7, gear is driven；8, it sells
Axis；9, retaining ring；10, baffle；11, start axis；12, housing；13, spring case；14, scroll spring；15, bearing block；16, driving tooth
Wheel；17, driven gear；18, ratchet；18a, spacing head；19, positioning column；20, locking plate；20a, locating plate；21, torsional spring；22,
Limit film；22a, spacing breach；23, circlip；24, idler wheel；25, start cup.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, a kind of starter, including body 1, the shaft that is set in body 1 and can rotate
2, on body 1 and it is capable of starting axis 11 and the clutch that is connected in shaft 2 that drive shaft 2 rotates.
As shown in Figure 1, it the open at one end and other end closed housing 12 and the bullet that is fixed in housing 12 that body 1, which includes,
Spring box 13 is provided with scroll spring 14 in spring case 13, and one end of 14 outer of scroll spring is fixed on spring case 13, shaft 2
It is passed through from the center of scroll spring 14, the one end on edge is connected in shaft 2 in scroll spring 14.On the closed end face of housing 12
It is fixed with bearing block 15, starting axis 11 is set in bearing block 15, and starting 11 one end of axis is protruded into housing 12 and is connected with actively
Gear 16,2 one end of shaft stretch out one end of spring case 13 and are connected with driven gear 17, driving gear 16 and 17 phase of driven gear
Engagement, starting axis 11 be located at one end outside housing 12 be in the hexagonal Hexagon hole to crank match, that is, when with
When family rotates clockwise starting axis 11 using crank, shaft 2 is able to drive by the rotation of driving gear 16 and driven gear 17
It rotates counterclockwise, so that the elastic force of scroll spring 14 be made to tighten.
As shown in Fig. 2 and Figure 14, it is socketed with ratchet 18 on one end that starting axis 11 is located at outside housing 12, housing 12 is closed
One end face is equipped with positioning column 19, is successively socketed with locking plate 20 and torsional spring 21 on positioning column 19, locking plate 20 is along an angle
Extend locating plate 20a, locating plate 20a is equipped with the idler wheel 24 that can be rotated, and the elastic force of torsional spring 21 acts on locking plate 20
So that idler wheel 24 has the trend for forming it into one-directional rotation in the tooth for being caught in 18 outside of ratchet, locking plate 20 and ratchet 18 always
Between specific matching relationship can refer to that application No. is a kind of novel air-cooled diesel engines disclosed in 201711325066.8
The actuating mechanism of starter.It is circumferentially fixed with limit film 22 on starting axis 11, being equipped between limit film 22 and ratchet 18 can make
The two position limiting structure circumferentially fixed after first relatively rotating.Connecting structure includes the spacing head 18a being fixed on 18 end face of ratchet
And the spacing breach 22a set on 22 outer of limit film, spacing breach 22a are arc-shaped and spacing head 18a is located at spacing breach 22a
Place.
When starting, a side wall of spacing head 18a and spacing breach 22a lean and keep limit film 22 and ratchet 18 circumferential
Fixed, starting axis 11 in this way is just circumferentially fixed with ratchet 18, and starting axis 11 drives ratchet 18 that the effect of locking plate 20 is overcome to carry out
Rotation.After the elastic force of 14 spring of scroll spring is tightened, shaft 2 drives starting axis 11 under the elastic force release of scroll spring 14
It rotates backward, ratchet 18 is stopped piece 20 and blocks and fixed at this time, and starting axis 11 is then by spacing head 18a along limit
Notch 22a is mobile and Small-angle Rotation can be done relative to ratchet 18 so that clutch be able to outwardly open and with hair
Starting cup 25 in motivation is combined together in advance.To spacing head 18a and spacing breach 22a another side wall lean after open
Moving axis 11 and ratchet 18 are again circumferentially fixed together and by limitation rotation, so that the elastic force of scroll spring 14 is no longer released
It puts, only when user pulls locking plate 20 that ratchet 18 is enable to unlock the elastic force that could discharge scroll spring 14 completely so that shaft 2
It is enough to drive starting 25 high speed rotation of cup.
As shown in figures 1 to 6, the other end of shaft 2 stretches out the other end of spring case 13, and clutch includes axial restraint
Pawl seat 3 and several starting dogs 4 being circumferentially distributed in pawl seat 3, pawl seat 3 on the end of shaft 2 are socketed in shaft 2,
It is equipped with annular protrusion 2a on the outside of the end of shaft 2, and is fixed with circlip 23 in the end of shaft 2,3 axial limiting of pawl seat is in annular
Between protrusion 2a and circlip 23, each starting dog 4 is hinged with pawl seat 3 and each starting dog 4 can be stretched simultaneously around hinge joint
Pawl seat 3 is outer out or retracts in pawl seat 3.Driving gear 7 is fixed in shaft 2, driving gear 7 is located in pawl seat 3, each starting dog 4
Inside is equipped with the engaging section 4a being meshed with driving gear 7.
Each starting dog 4 is all made of nylon material and is made, and the block that each starting dog 4 is gradually increased in one end to the other end
Shape, the lesser one end of starting dog 4 are hinged end, and the biggish one end of starting dog 4 is connecting end, and engaging section 4a is several is set to hingedly
Hold the engaging tooth of inside.The outside of pawl seat 3 is circumferentially arranged with several identical as 4 quantity of starting dog and step down recess correspondingly
The connecting end of 3a, each starting dog 4 are located at corresponding resigning recess 3a.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, pawl seat 3 is equipped with friction plate 5 and elastic component 6 close to the side of spring case 13, rubs
One side wall of the pad 5 under the elastic force effect of elastic component 6 always with spring case 13 towards pawl seat 3 leans, and friction plate 5 is equipped with
Towards the stopper section 5a of pawl seat 3, stopper section 5a is from one of resigning recess 3a across and at resigning recess 3a
The connecting end inner sidewall of starting dog 4 leans.One end axial restraint that shaft 2 connects pawl seat 3 has retaining ring 9, retaining ring 9 and friction plate
5 are located at the same side of pawl seat 3, and baffle 10 is arranged in shaft 2, and baffle 10 is resisted against on retaining ring 9, and elastic component 6 is located at gear
Between piece 10 and friction plate 5, wave spring washer is specifically can be used in elastic component 6, and each trough of wave spring washer is resisted against gear
On piece 10, each wave crest of wave spring washer is resisted against on friction plate 5.
When rotating clockwise starting axis 11 using crank makes scroll spring 14 carry out storage power, each starting dog 4 is contracted in pawl
In seat 3, shaft 2 is rotated counterclockwise with moving gear, and the rotation direction of gear is to make each starting dog 4 around hinge joint to pawl at this time
3 contracts of seat, therefore gear, pawl seat 3 and each starting dog 4 synchronously rotate, while the lateral wall of one of starting dog 4
It leans with stopper section 5a and friction plate 5 is pushed to overcome the elastic force of elastic component 6 come with rotating together.
After scroll spring 14 stores power, shaft 2 is reversed in advance by spacing head 18a and the cooperation of spacing breach 22a
Rotate a small distance.Shaft 2 drives driving gear 7, pawl seat 3 and each starting dog 4 to rotate clockwise, and drives gear 7 at this time
Rotation direction stretch out each starting dog 4 to outside pawl seat 3 around hinge joint, and stopper section 5a and another starting dog 4
Inner sidewall lean, while spring case 13 generates certain frictional force to friction plate 5, so that stopper section 5a turns pawl seat 3
Dynamic to form certain resistance and be able to rotate pawl seat 3 not, the starting dog 4 that such inner sidewall and stopper section 5a lean will be
Stopper section 5a and and the collective effect of driving gear 7 under it is protruding around hinge joint rotation, while remaining other rise
Pawl 4 also can be synchronized and be stretched out outside pawl seat 3 with the driving of driving gear 7.
When start axis 11 and ratchet 18 it is circumferentially fixed together after, shaft 2 has been locked rotation, but clutch at this time
It is combined togather in advance with the starting cup 25 on engine.Then user solves the release of locking plate 20 to ratchet 18
Lock, shaft 2 is just done high speed under the elastic force release of scroll spring 14 and is rotated clockwise, so that starting cup 25 be made to do high-speed rotation
Start engine.
This starter stationary drive gear 7 and setting engaging section 4a on the inside of each starting dog 4 in shaft 2, each starting
Pawl 4 is meshed by engaging section 4a with driving gear 7, so that each starting dog 4 forms linkage by driving gear 7 and can join
Knot forms an entirety, can so make entire clutch and the cooperation started between cup 25 more stable, will not picture
Equally there is the shape that a part of starting dog 4 and starting cup 25 form effectively cooperation and another part starting dog 4 is hanging in the prior art
State, while the reaction force for starting cup 25 can also be divided by each starting dog 4 rather than individually be undertaken, therefore each starting
The stress of pawl 4 is also more uniform, is hardly damaged.
As shown in Figure 7 and Figure 8, pawl seat 3 includes two substrate 3b disposed in parallel, drives gear 7 between two substrate 3b,
Two substrate 3b circumferentially go out several lug 3b1s identical with 4 quantity of starting dog, each lug 3b1 phase on two substrate 3b
It flushes, the hinged end of each starting dog 4 passes through pin shaft 8 and is hinged between the correspondence lug 3b1 of two substrate 3b, on same substrate 3b
It is connected with inner recess 3b2 between adjacent two lugs 3b1, so the same position on two substrate 3b when two substrate 3b are combined into pawl seat 3
The inner recess 3b2 at place just constitutes the resigning recess 3a of entire pawl seat 3.
As shown in Fig. 6, Fig. 9 A, Fig. 9 B and Figure 10 A, there is one 4b of recess on the inside of the connecting end of starting dog 4, starting dog 4
There is two 4c of recess, the connecting end end of each starting dog 4 is located at adjacent when each starting dog 4 retracts in pawl seat 3 on the outside of hinged end
At two 4c of recess of starting dog 4, outermost engagement threaded portion is located at the recess of another adjacent starting dog 4 on each starting dog 4
At one 4b.The connecting end lateral wall of starting dog 4 is inclined surface, is equipped with arc surface on the outside of hinged end, two 4c of recess is located at arc surface
Side, connecting end lateral wall is located at the other side of arc surface, and is connected between arc surface and the lateral wall of connecting end outer
Convex circular arc mating surface 4d.Connecting end is equipped with convex block 4e, side of the convex block 4e close to connecting end end towards the face of friction plate 5
For evagination circular arc abutment face 4e1, circular arc abutment face 4e1 and connecting end towards between the face of friction plate 5 be in 90 ° of angles, convex block
4e is located at the inner recess 3b2 on the substrate 3b of friction plate 5, convex when starting dog 4 is stretched out around hinge joint to outside pawl seat 3
Block 4e side wall can lean with the inner wall of inner recess 3b2.
As shown in Figure 12 and Figure 13, each to start since each starting dog 4 is in the bulk that self join end is gradually increased to hinged end
The connecting end lateral wall and outer convex arc surface or inclined-plane of pawl 4, when each starting dog 4 outwardly opens process, the connection of each starting dog 4
Hold end lateral wall that can slide along the inner peripheral surface of starting cup 25, each connecting end end of final starting dog 4 can slide into starting
In hole on cup 25, and leant by the one side wall in hole on circular arc mating surface 4d and starting cup 25 one in subsequent sliding
It rises, is equivalent between starting dog 4 and the hole side wall for starting cup 25 and forms a wedge-like engagement relationship, made by this structure
Each starting dog 4 and the connection for starting cup 25 are even closer, and stability when work is higher.
Starting dog 4 is still in the open state during leaning to circular arc mating surface 4d with hole inner wall out of slide-in hole
, if opening degree of the starting dog 4 in hole is excessive, then it will appear starting dog 4 when shaking tight scroll spring 14 next time and be stuck in hole
It is interior and the situation in pawl seat 3 can not be retracted.For this purpose, as shown in Figure 10 B, this starter passes through the setting of convex block 4e, can be used to
The structure of limitation 4 open angle of starting dog is formed, specifically the lateral wall of convex block 4e is just when starting dog 4 is opened to certain angle
It can lean with inner recess 3b2 one side wall, so that starting dog 4 can not be further continued for opening.By to opening 4 opening angle of starting dog
The limitation of degree, can prevent starting dog 4 excessively open in hole and caused by starting dog 4 the problem of can not normally bouncing back, and
Convex block 4e circular arc abutment face 4e1 and connecting end towards between the face of friction plate 5 be in 90 ° of angles, it is meant that when connecting end end
Partial arc abutment face 4e1 when portion is located in the hole of starting cup 25 on convex block 4e can lean with the inner wall of starting cup 25, this
Sample can increase each starting dog 4 and start the connection area between cup 25, to further increase steady with the cooperation of starting cup 25
It is qualitative.
As seen in figs. 11a and 11b, stopper section 5a is in the sheet of strip, and stopper section 5a is fixed with one with friction plate 5,
Stopper section 5a is located in one of between the connecting end end of starting dog 4 and two 4c of recess of adjacent starting dog 4.In the present embodiment
In, 5 outer of friction plate, which has, cuts out notch 5b, stopper section 5a from cutting out notch 5b one at inner wall to the direction close to pawl seat 3
Extend, the junction of friction plate 5 and stopper section 5a have to friction plate 5 close to the recessed portion 5c of 3 side of pawl seat.It is producing
When friction plate 5, disk is first stamped out on one piece of steel disc as friction plate 5, then inwardly cuts out a fixed length from 5 outer of friction plate
Degree, which makes to be formed on friction plate 5, cuts out notch 5b, will form one end on such friction plate 5 and is fixedly connected with inner wall at notch 5b mono- is cut out
And the other end and the strip structure cutting out another place's inner wall of notch 5b and mutually disconnect, then again by strip structure to the one of friction plate 5
Rollover folding can be used as stopper section 5a, finally tool be recycled to squeeze friction plate 5 and the junction of stopper section 5a
To form recessed portion 5c.Other than aforesaid way, then acceptable first separately made friction plate 5 and strip sheet lead to strip sheet
Welding manner is crossed to be fixed on friction plate 5 to use as stopper section 5a.
In the present embodiment, the quantity of stopper section 5a is specially two, and 5 outer of friction plate is symmetrical scarce there are two cutting out
Mouthful 5b, two cut out that cutting out for notch 5b is contrary, two stopper section 5a respectively with it is corresponding cut out notch 5b one at inner wall mutually consolidate
Even.The quantity of stopper section 5a is two, then two stopper section 5a are at two resigning recess 3a in pawl seat 3 naturally in cooperation
It passes through, each starting dog 4 can be enable more easily to be opened in this way.
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, the difference is that: in the present embodiment, elasticity
Part 6 is spring, and spring one end is resisted against on baffle 10, and the other end of spring is resisted against on friction plate 5.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of starter, including body (1), the shaft (2) being set in body (1) and the clutch being connected on shaft (2)
Mechanism, clutch include being axially fixed in the pawl seat (3) of shaft (2) one end and several being circumferentially distributed in pawl seat (3)
Starting dog (4), each starting dog (4) be hinged with pawl seat (3) and each starting dog (4) can around hinge joint stretch out pawl seat
(3) outside or in retraction pawl seat (3), pawl seat (3) side is equipped with friction plate (5) and elastic component (6), which is characterized in that described
Shaft (2) one end is fixed with driving gear (7), and driving gear (7) is located in pawl seat (3), be equipped on the inside of each starting dog (4) and
Driving gear (7) engaging section (4a) for being meshed, friction plate (5) under the elastic force effect of elastic component (6) always with body (1) one
Side wall leans, and friction plate (5) is equipped with the stopper section (5a) towards pawl seat (3), when shaft (2) edge stretches out starting dog (4)
Stopper section (5a) and the inner sidewall of one of starting dog (4) lean when pawl seat (3) direction rotates.
2. starter according to claim 1, which is characterized in that described starting dog (4) one end is hinged end, starting dog
(4) the other end is connecting end, and the engaging section (4a) is several engaging tooths on the inside of hinged end, stopper section (5a) and connection
The inner sidewall at knot end leans.
3. starter according to claim 2, which is characterized in that on the outside of the pawl seat (3) circumferentially arranged with it is several with rise
Pawl (4) quantity is identical and resigning recess (3a), the connecting end of each starting dog (4) are located at corresponding resigning recess correspondingly
At (3a), stopper section (5a) is passed through from one of resigning recess (3a).
4. starter according to claim 3, which is characterized in that the pawl seat (3) includes two substrates disposed in parallel
(3b) drives gear (7) between two substrates (3b), and two substrates (3b) circumferentially go out several and starting dog (4) number
Identical lug (3b1) is measured, each lug (3b1) on two substrates (3b) is flush, and the hinged end of each starting dog (4) passes through pin
Axis (8) is hinged between the correspondence lug (3b1) of two substrates (3b), is connected between adjacent two lug (3b1) on same substrate (3b)
It is connected to inner recess (3b2), forms resigning recess (3a) with the inner recess (3b2) at position on two substrates (3b).
5. according to starter described in Claims 2 or 3 or 4, which is characterized in that tool on the inside of the connecting end of the starting dog (4)
Have recess one (4b), there is recess two (4c) on the outside of the hinged end of the starting dog (4), when each starting dog (4) retract pawl seat (3)
The connecting end end of each starting dog (4) is located at the recess two (4c) of adjacent starting dog (4) when interior, outermost on each starting dog (4)
The engagement threaded portion of side is located at the recess one (4b) of another adjacent starting dog (4).
6. starter according to claim 5, which is characterized in that the stopper section (5a) is in the sheet of strip, backstop
Portion (5a) is fixed with one with friction plate (5), and stopper section (5a) is located in one of connecting end end and the phase of starting dog (4)
Between the recess two (4c) of adjacent starting dog (4).
7. starter according to claim 4, which is characterized in that the starting dog (4) is in self join end to hinged end
The bulk being gradually increased, connecting end lateral wall are inclined surface, arc surface are equipped on the outside of hinged end, between inclined surface and arc surface
It is connected with circular arc mating surface (4d), connecting end is equipped with convex block (4e) towards the face of friction plate (5), and convex block (4e) is close to connecting end
The side of end is the circular arc abutment face (4e1) of evagination, circular arc abutment face (4e1) and connecting end towards the face of friction plate (5) it
Between be in 90 ° of angles, convex block (4e) be located at close to friction plate (5) substrate (3b) on inner recess (3b2) at, when starting dog (4)
Convex block (4e) side wall can lean with the inner wall of inner recess (3b2) when stretching out outside around hinge joint to pawl seat (3).
8. starter according to claim 6, which is characterized in that friction plate (5) outer, which has, cuts out notch
(5b), the stopper section (5a) from cutting out notch (5b) one at inner wall extend to close to the direction of pawl seat (3), friction plate
(5) there is the recessed portion (5c) to friction plate (5) close to pawl seat (3) side with the junction of stopper section (5a).
9. starter according to claim 8, which is characterized in that the quantity of the stopper section (5a) is two, friction
Piece (5) outer is symmetrical there are two cutting out notch (5b), and two cut out cutting out for notch (5b) contrary, two stopper sections (5a)
Respectively with it is corresponding cut out notch (5b) one at inner wall be fixedly connected with.
10. starter according to claim 1, which is characterized in that shaft (2) outer end axial restraint has retaining ring
(9), shaft (2) outer end is arranged with baffle (10), and baffle (10) is resisted against on retaining ring (9), elastic component (6) be located at baffle (10) with
Between friction plate (5), elastic component (6) is wave spring washer, and each trough of wave spring washer is resisted against on baffle (10), wave
Each wave crest of shape elastic washer is resisted against on friction plate (5) or elastic component (6) is spring, and one end of spring is resisted against gear
On piece (10), the other end of spring is resisted against on friction plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227825.XA CN109812367A (en) | 2019-03-25 | 2019-03-25 | A kind of starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910227825.XA CN109812367A (en) | 2019-03-25 | 2019-03-25 | A kind of starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109812367A true CN109812367A (en) | 2019-05-28 |
Family
ID=66610181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910227825.XA Pending CN109812367A (en) | 2019-03-25 | 2019-03-25 | A kind of starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608122A (en) * | 2019-11-07 | 2019-12-24 | 台州擎农机械有限公司 | Auxiliary starter of engine |
| CN113266502A (en) * | 2021-05-14 | 2021-08-17 | 福州天擎机电设备有限公司 | Engine pull-free starter and engine |
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| CN209586570U (en) * | 2019-03-25 | 2019-11-05 | 台州擎农机械有限公司 | A kind of starter |
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| WO2012153029A1 (en) * | 2011-05-09 | 2012-11-15 | Valeo Equipements Electriques Moteur | Coupling system provided with a shock‑absorbing device for starter motor with starter drive assembly and associated starter motor with starter drive assembly |
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| CN110608122A (en) * | 2019-11-07 | 2019-12-24 | 台州擎农机械有限公司 | Auxiliary starter of engine |
| CN113266502A (en) * | 2021-05-14 | 2021-08-17 | 福州天擎机电设备有限公司 | Engine pull-free starter and engine |
| CN113266502B (en) * | 2021-05-14 | 2023-10-27 | 福州天擎机电设备有限公司 | Engine pull-free starter and engine |
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