CN104847558A - Engine recoil starter - Google Patents
Engine recoil starter Download PDFInfo
- Publication number
- CN104847558A CN104847558A CN201510270535.5A CN201510270535A CN104847558A CN 104847558 A CN104847558 A CN 104847558A CN 201510270535 A CN201510270535 A CN 201510270535A CN 104847558 A CN104847558 A CN 104847558A
- Authority
- CN
- China
- Prior art keywords
- rope sheave
- starter
- starting
- dish
- energy storage
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N5/00—Starting apparatus having mechanical power storage
- F02N5/02—Starting apparatus having mechanical power storage of spring type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/04—Reverse rotation of the engine
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pulleys (AREA)
Abstract
The invention relates to the technical field of engines, in particular to an engine recoil starter. The engine recoil starter comprises a return spiral coil spring, a starting rope sheave and a ratchet which are disposed in a starter housing, wherein an elastic connecting device is disposed between the starting rope sheave and the ratchet; the elastic connecting structure is characterized in that an auxiliary starting plate is disposed between the starting rope sheave and the ratchet, the ratchet is disposed on the auxiliary starting plate, an energy accumulation spring is disposed between the auxiliary starting plate and the starting sheave, the two tips of the energy accumulation spring are respectively fixed on the corresponding lateral sides of the starting sheave and the auxiliary starting plate, and the ratchet is disposed on the other lateral side of the auxiliary starting plate. The engine recoil starter has the advantages that the starter is in reliable transmission and clutch with an engine, small in size, capable of correspondingly reducing the shape of the whole starter, easy in starting, labor saving, small in vibration, and high in use comfortableness.
Description
Technical field
The present invention relates to the technical field of motor, especially relating to a kind of being applicable to take small air-cooled engines as the hand-held garden instrument of power, as: brush cutter, chain saw, Green fence cutter etc., starter is arranged on flywheel blade homonymy, namely relates to a kind of motor kick-starter.
Background technique
The put-put structure that hand-pulling type starts is simple, lightweight, uses extensively in handheld garden instrument.The bent axle of motor starts the overall process turning to the running of motor auto idle speed under the External Force Acting of hand starter, is called the starting process of motor.General kick-starter by starter case, return spiral disc spring, rise and start handle, stay cord, starting rope sheave etc. and form, start rope sheave and be provided with tire, tire and the ratchet be fixed on flywheel engageable, flywheel is fixed on bent axle.When piloting engine, held and started pulling stay cord, stay cord drives and starts rope sheave rotation, starting rope wheel drives return spiral disc spring to shrink, the tire started on rope sheave engages with the ratchet on flywheel and drives flywheel turns, and then makes crank rotation, and motor auto idle speed operates; Unclamp starting stay cord, return spiral disc spring launches, and restores to the original state, and drives and starts rope sheave counterrotating, and stay cord unrolls on starting rope sheave, and ratchet is thrown off with tire under the influence of centrifugal force, so far completes engine startup.The put-put that this hand-pulling type starts is when carrying out pulling starting, the pressure of mechanical periodicity in cylinder must be overcome, rotate with driving crank, reach enough fire speeds, the pressure initiation recoil force of this mechanical periodicity and vibrations, be directly delivered to user on hand, recoil force and vibrations also can make starter be hit easily to damage, and starting effort, rise and start vibrations greatly, comfort is poor.
Meanwhile, air cooling engine is the motor using air as cooling medium.Cooling system is bad, motor can be overheated, volumetric efficiency is caused to decline, burn abnormal, the power character of motor, Economy, reliability, durability can be caused to worsen comprehensively, a key factor of engine work is the cooling-air that cooling system can provide enough, namely needs enough large fan area and cooling air passage.Therefore starter needs and leaves enough gaps between flywheel, and cause starter volume comparatively large, flywheel profile is large, and corresponding tool monnolithic case is comparatively large, Heavy Weight.
Summary of the invention
For the deficiency that above-mentioned prior art exists, the object of this invention is to provide a kind of with driving engine, clutch is reliable, starter volume is little, correspondingly can reduce whole instrument moulding, be easy to start, laborsaving, shake little, the motor kick-starter that comfort is high.
For realizing above-mentioned object, the invention provides following technological scheme:
A kind of motor kick-starter, comprises the return spiral disc spring be located in starter motor case, starts rope sheave and ratchet, be provided with elastic connecting device between described starting rope sheave and ratchet.
The present invention is set to further: the concrete structure of described elastic connecting device is: start between rope sheave and ratchet and be provided with auxiliary starter dish, and ratchet is located on auxiliary starter dish, energy storage spring is provided with between auxiliary starter dish and starting rope sheave, the two ends of energy storage spring is individually fixed in starts on the rope sheave side corresponding with auxiliary starter dish, and the another side of auxiliary starter dish is provided with ratchet.
The present invention is set to further: described auxiliary starter dish is provided with cavity or/and start the relative side of rope sheave, and described energy storage spring is located between the cavity of the auxiliary starter dish side relative with starting rope sheave or is started between the cavity of the rope sheave side relative with auxiliary starter dish or between the cavity of auxiliary starter dish and the cavity of starting rope sheave.
The present invention is set to further: the side that the cavity of auxiliary starter dish is relative with starting rope sheave is respectively equipped with the mounting hole matched with the two ends of energy storage spring.
The present invention is set to further: the side that the cavity of described starting rope sheave is relative with auxiliary starter dish is respectively equipped with the mounting hole matched with the two ends of energy storage spring.
The present invention is set to further: the cavity of described auxiliary starter dish and the cavity of starting rope sheave are respectively equipped with the mounting hole matched with the two ends of energy storage spring.
The present invention is set to further: the middle part of described starting rope sheave or an auxiliary starter dish side corresponding with energy storage spring is provided with center erection column, and auxiliary starter dish or the middle part of starting a rope sheave side corresponding with energy storage spring are provided with center mounting hole.
The present invention is set to further: described center mounting hole is step hole.
The present invention is set to further: described energy storage spring is double-layer spiral spring structure and two-layer rotation direction is identical.
The present invention is set to further: the two ends of described energy storage spring is that after two terminations of double-layer spiral spring are threaded to inner ring respectively, bending several angle is formed in the opposite direction.
By adopting technique scheme, the technique effect that the present invention reaches is:
1, make starter and the transmission of engine start machine, clutch reliable;
Can stored energy when 2, starting, again form force action in bent axle, the pressure of the mechanical periodicity transmitted cushioned, be convenient to starting, laborsaving, shake little;
3, can effective carry-over moment, good buffer effect, and conserve space, be applicable to being used on mini engine, is conducive to reducing starter volume;
4, power transmission is reliable, and cranking performance rating is high, starter long service life.
Accompanying drawing explanation
Below in conjunction with
accompanying drawingthe present invention is further detailed explanation.
fig. 1for detonation configuration of the present invention is illustrated
figure.
fig. 2for the structural representation of wind spring of the present invention
figure.
fig. 3for the structural representation of starting rope sheave of the present invention
figure.
fig. 4for the structural representation of auxiliary starter dish of the present invention
figure.
fig. 5for the cooperating structure of starting rope sheave of the present invention, energy storage spring, auxiliary starter dish is illustrated
figure.
fig. 6for the structural representation of energy storage spring of the present invention
figure.
fig. 7for cross-section structure of the present invention is illustrated
figure.
fig. 8for the detonation configuration of another mode of execution of elastic connecting device of the present invention is illustrated
figure.
fig. 9for
fig. 8in the side-looking structural representation of elastic connecting device
figure.
Embodiment
Reference
fig. 1~ 7, for a kind of motor kick-starter disclosed by the invention, return spiral disc spring 2 is arranged in starter case 1 together with maintenance lid 21, the end, outer ring 3 of return spiral disc spring 2 is fixed on starter case 1 li, the inner ring end 4 of return spiral disc spring 2 is stuck in the groove 6 starting rope sheave 5, starting rope sheave 5 is set on the newel 7 of starting case 1, stay cord 8 one end is fixed in the hole of starting on rope sheave 5 in grooving 9, the other end is fixed on rising outside starter case 1 and starts on 10, stay cord 8 can drive starting rope sheave 5 to rotate under external force, start the ratchet started on rope sheave 5 when rope sheave 5 rotates and drive flywheel turns, start rope sheave 5 rotation makes return spiral disc spring 2 shrink simultaneously, after external force is cancelled, return spiral disc spring 2 returns to previous condition, loosening the elastic force discharged in process drives starting rope sheave 5 to rotate backward, stay cord 8 unrolls in grooving 9.
Elastic connecting device is provided with between starting rope sheave 5 in above-mentioned and ratchet 18.The concrete structure of elastic connecting device is: start between rope sheave 5 and ratchet 18 and be provided with auxiliary starter dish 13, ratchet 18 is located on auxiliary starter dish 13, energy storage spring 11 is provided with between auxiliary starter dish 13 and starting rope sheave 5, the two ends of energy storage spring 11 is individually fixed in starts on rope sheave 5 and the corresponding side of auxiliary starter dish 13, and the another side of auxiliary starter dish 13 is provided with ratchet 18.Described auxiliary starter dish 13 is or/and the side of starting rope sheave 5 relative is provided with cavity 22, between the side that described energy storage spring 11 cavity 22 of being located at auxiliary starter dish 13 is relative with starting rope sheave 5, then the side that the cavity 22 of auxiliary starter dish 13 is relative with starting rope sheave 5 is respectively equipped with the mounting hole 12,14 matched with the two ends of energy storage spring 11.Or start between the cavity 22 of rope sheave 5 side relative with auxiliary starter dish 13, then start on the cavity 22 of rope sheave 5 side relative with auxiliary starter dish 13 and be respectively equipped with the mounting hole 12,14 matched with the two ends of energy storage spring 11.Or between the cavity 22 of auxiliary starter dish 13 and the cavity 22 starting rope sheave 5, then the cavity 22 of auxiliary starter dish 13 and the cavity 22 of starting rope sheave 5 are respectively equipped with the mounting hole 12,14 matched with the two ends of energy storage spring 11.The mounting hole 12 li started on rope sheave 5 is inserted in a termination in the two ends of i.e. energy storage spring 11, mounting hole 14 li on auxiliary starter dish 13 is then inserted in another termination.
The middle part of starting rope sheave 5 or auxiliary starter dish 13 side corresponding with energy storage spring 11 is provided with center erection column 15, auxiliary starter dish 13 or the middle part of starting rope sheave 5 side corresponding with energy storage spring 11 are provided with center mounting hole 16, and center mounting hole 16 is step hole.Energy storage spring 11 is placed on the newel 7 of starter case 1 together with auxiliary starter dish 13, is fixed by set screw 17, and the ratchet 18 on auxiliary starter dish 13 is engageable with the ratchet 23 on flywheel 19.Known auxiliary starter dish 13 drives flywheel 19 to rotate needs certain moment of torsion, stay cord 8 drive start rope sheave 5 rotate, energy storage spring 11 to auxiliary starter dish 13 transmitting torque, when moment of torsion be less than drive flywheel 19 rotate moment of torsion time, energy storage spring 11 bidirectional stress is out of shape, stored energy; When the moment of torsion sum that moment of torsion and energy storage spring 11 produce is greater than the moment of torsion driving flywheel 19 to rotate, flywheel 19 rotating drive crank rotation.
Energy storage spring 11 is double-layer spiral structure, upper and lower two-layer connection transition circle is suitable and rotation direction is identical, every layer has some circles, bending two ends is angled, have at least one end to curve and be less than an angle of 90 degrees, two curved end are all arranged on spring inner ring, and namely the two ends of energy storage spring 11 is that after two terminations of double-layer spiral spring are threaded to inner ring respectively, bending several angle is formed in the opposite direction.
Starter is installed on the engine, when piloting engine, hold and started to pull out stay cord 8 10, stay cord 8 drives starting rope sheave 5 to rotate, starting rope sheave 5 drives return spiral disc spring 2 to shrink, by energy storage spring 11 to auxiliary starter dish 13 transmitting torque, auxiliary starter dish 13 engages flywheel driven 19 by ratchet 18 with ratchet 23 and rotates, bent axle 20 turns to motor and automatically operates, after engine start, ratchet 23 is thrown off with ratchet 18 under the influence of centrifugal force, energy storage spring 11 restores to the original state, the return spiral disc spring 2 shunk reduces, the elastic force of release drives starting rope sheave 5 to reverse, stay cord 8 wraparound is started on rope sheave 5, complete engine startup.
Certainly, elastic connecting device in above-mentioned also can be: start between rope sheave 5 and ratchet 18 and be provided with auxiliary starter dish 13, ratchet 18 is located on auxiliary starter dish 13, elastic coupling flexible coupling is provided with between auxiliary starter dish 13 and starting rope sheave 5, elastic coupling flexible coupling comprises driving gear disc 24 and driven fluted disc 25, driving gear disc 24 is arranged at and starts on rope sheave 5, driven fluted disc 25 is located on auxiliary starter dish 13, the face that driving gear disc 24 is relative with driven fluted disc 25 is evenly equipped with intermeshing straight-tooth 26 respectively, circular gap L is provided with between intermeshing adjacent two straight-tooth 26, the span of circular gap L is 1mm-2mm or 2.5mm-3.5mm, the Surface of action of adjacent two straight-tooth is all axially provided with curve bath 27, elastomer 28 is provided with in the cavity that adjacent two curve baths 27 form.Elastomer 28 is generally nylon material or rubber material.This scheme is also feasible program, but relative to a upper scheme, only has the effect reducing recoil force and vibrations, therefore preferably adopts a upper scheme.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalence changes done according to structure of the present invention, shape, principle, all should be covered by within protection scope of the present invention.
Claims (10)
1. a motor kick-starter, comprises the return spiral disc spring be located in starter motor case, starts rope sheave and ratchet, it is characterized in that: be provided with elastic connecting device between described starting rope sheave and ratchet.
2. motor kick-starter according to claim 1, it is characterized in that: the concrete structure of described elastic connecting device is: start between rope sheave and ratchet and be provided with auxiliary starter dish, and ratchet is located on auxiliary starter dish, be provided with energy storage spring between auxiliary starter dish and starting rope sheave, the two ends of energy storage spring is individually fixed in starts on the rope sheave side corresponding with auxiliary starter dish.
3. motor kick-starter according to claim 2, it is characterized in that: described auxiliary starter dish is provided with cavity or/and start the relative side of rope sheave, described energy storage spring is located between the cavity of the auxiliary starter dish side relative with starting rope sheave or is started between the cavity of the rope sheave side relative with auxiliary starter dish or between the cavity of auxiliary starter dish and the cavity of starting rope sheave.
4. motor kick-starter according to claim 3, is characterized in that: the side that the cavity of auxiliary starter dish is relative with starting rope sheave is respectively equipped with the mounting hole matched with the two ends of energy storage spring.
5. motor kick-starter according to claim 3, is characterized in that: the side that the cavity of described starting rope sheave is relative with auxiliary starter dish is respectively equipped with the mounting hole matched with the two ends of energy storage spring.
6. motor kick-starter according to claim 3, is characterized in that: the cavity of described auxiliary starter dish and the cavity of starting rope sheave are respectively equipped with the mounting hole matched with the two ends of energy storage spring.
7. the motor kick-starter according to any one of claim 2 ~ 6, it is characterized in that: the middle part of described starting rope sheave or an auxiliary starter dish side corresponding with energy storage spring is provided with center erection column, auxiliary starter dish or the middle part of starting a rope sheave side corresponding with energy storage spring are provided with center mounting hole.
8. motor kick-starter according to claim 7, is characterized in that: described center mounting hole is step hole.
9. the motor kick-starter according to any one of claim 2 ~ 6, is characterized in that: described energy storage spring is double-layer spiral spring structure and two-layer rotation direction is identical.
10. motor kick-starter according to claim 9, is characterized in that: the two ends of described energy storage spring is that after two terminations of double-layer spiral spring are threaded to inner ring respectively, bending several angle is formed in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510270535.5A CN104847558A (en) | 2015-05-25 | 2015-05-25 | Engine recoil starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510270535.5A CN104847558A (en) | 2015-05-25 | 2015-05-25 | Engine recoil starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847558A true CN104847558A (en) | 2015-08-19 |
Family
ID=53847460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510270535.5A Pending CN104847558A (en) | 2015-05-25 | 2015-05-25 | Engine recoil starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336050A (en) * | 2020-01-15 | 2020-06-26 | 重庆科马工贸有限公司 | General gasoline engine with novel starter |
| CN114623033A (en) * | 2021-11-29 | 2022-06-14 | 浙江崴光工贸有限公司 | Cylinder starter of chain saw |
-
2015
- 2015-05-25 CN CN201510270535.5A patent/CN104847558A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336050A (en) * | 2020-01-15 | 2020-06-26 | 重庆科马工贸有限公司 | General gasoline engine with novel starter |
| CN114623033A (en) * | 2021-11-29 | 2022-06-14 | 浙江崴光工贸有限公司 | Cylinder starter of chain saw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130068065A1 (en) | Recessed belt damper | |
| CN1285463A (en) | Starter for engine | |
| CN202220807U (en) | Coupling tuning pulley | |
| CN104847558A (en) | Engine recoil starter | |
| CN102720617A (en) | Starting device for diesel engine | |
| CN204646500U (en) | Motor kick-starter | |
| CN112392937B (en) | Torque transmission mechanism, electric starting device, engine and garden tool | |
| EP3147494A1 (en) | Dual source starter system for an engine | |
| CN202348511U (en) | Starter for air-cooled diesel engine | |
| CN206360833U (en) | A kind of chain saw starter with double-spring structure | |
| CN202645810U (en) | Pull-free start disc of engine | |
| CN201016322Y (en) | Easy starting mechanism for universal petrol engines | |
| CN102359508B (en) | Coupling tuning pulley | |
| CN109611252B (en) | Chain saw with flashlight double-starting system | |
| CN209604183U (en) | A kind of chain saw with the double starting systems of flashlight | |
| CN207876008U (en) | A kind of power plant and unmanned helicopter | |
| CN111441890A (en) | Two-stroke four-cylinder piston engine starting device for small and medium-sized unmanned aerial vehicle | |
| CN205805805U (en) | Hand pulling starter with the adjustable rope sheave of diameter | |
| CN202007731U (en) | Electric starting structure for universal petrol engine | |
| CN204900748U (en) | Shock attenuation belt pulley group spare with the crankshaft | |
| CN202483777U (en) | Kick starter | |
| CN216238330U (en) | Safety clutch transmission device for airport sweeper | |
| CN2675890Y (en) | Ratchet wheel type clutch with buffer unit | |
| CN214741793U (en) | Fixed point takes flywheel ring gear structure of split type ring gear | |
| CN203604042U (en) | Vehicle and engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| CB02 | Change of applicant information |
Address after: 317500 No. 48 Hu Hu Road, Taiping Street, Zhejiang, Wenling Applicant after: Zhong Ma gardens, Zhejiang machine limited company Address before: West Street Shanglin village Shanglin road Wenling city Taizhou city Zhejiang province 317500 No. 11 Applicant before: Zhong Ma gardens, Zhejiang machine limited company |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |
|
| RJ01 | Rejection of invention patent application after publication |