CN102817757B - Engine manual start assembly and engine thereof - Google Patents
Engine manual start assembly and engine thereof Download PDFInfo
- Publication number
- CN102817757B CN102817757B CN201210137613.0A CN201210137613A CN102817757B CN 102817757 B CN102817757 B CN 102817757B CN 201210137613 A CN201210137613 A CN 201210137613A CN 102817757 B CN102817757 B CN 102817757B
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- guide plate
- stay cord
- drive
- driving cam
- return
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Abstract
The invention discloses an engine manual start assembly and an engine thereof. The engine manual start assembly comprises a case, a start connecting sleeve and a pull rope disk component used for driving the start connecting sleeve to rotate, the start connecting sleeve is matched with an engine crankshaft in a transmission mode, the pull rope disk component comprises at least a pull rope disk, a drive cam and a guide plate, a line is arranged at the edge of the guide plate along a periphery direction, and the line is used for driving the drive cam to be in a joint with the start connecting sleeve through inertia of the guide plate and driving the drive cam to return. The engine manual start assembly has the advantages that the problem of drive failure caused by torsion spring axial deviation is solved, the reliability of the manual start assembly is greatly improved, the service life is prolonged, the drive torsion spring and the release spring are absent, so that the structure of the manual start assembly is simplified, the installation and the dismounting are facilitated, accordingly, the overall structure, the installation and the dismounting are simple, the problem that the engine can not be manually started caused by the failure of the drive torsion spring and the release spring is prevented, and the usage and maintenance costs are reduced.
Description
Technical field
The present invention relates to a kind of engine components and motor thereof, particularly a kind of engine starting gear and motor thereof.
Background technique
It is comparatively common Starting mode that engine hand pulling starts, and particularly for small-sized universal engine, hand pull starting-up is comparatively generally applied especially.The hand pull starting-up assembly of motor generally comprises stay cord dish, starts connecting sleeve, stay cord dish return spring, driving cam, driving cam torsion spring and release spring, stay cord dish is driven by stay cord and rotates, drive driving cam revolves round the sun, be combined (click) with startup connecting sleeve inner circle under the effect of driving cam torsion spring, started, acted on stay cord dish by stay cord dish return spring and make its return and be wound around stay cord; Meanwhile, release spring acts on driving cam and makes it and start connecting sleeve return being separated.Owing to there is driving cam torsion spring and release spring in said structure, make whole hand pull starting-up assembly structure complicated, difficulty is installed, and driving cam spring easily lost efficacy, and align with driving cam edge and there will be deviation, even depart from, cannot play a role, reliability is low, affects normally carrying out of hand pull starting-up.
Therefore, need to improve the hand pull starting-up assembly of motor, there is simple general structure, mount and dismount comparatively simple, there will not be due to drive lost efficacy and affect motor cannot the problem of hand pull starting-up, there is higher reliability, improve the working life of hand pull starting-up assembly, reduce use technology cost.
Summary of the invention
In view of this, the invention provides a kind of engine hand pulling and start assembly and motor thereof, there is simple general structure, mount and dismount comparatively simple, there will not be due to drive lost efficacy and affect motor cannot the problem of hand pull starting-up, there is higher reliability, improve the working life of hand pull starting-up assembly, reduce use technology cost.
Engine hand pulling of the present invention starts assembly, comprising housing, starting connecting sleeve and the stay cord dish assembly for driving startup connecting sleeve to rotate, described stay cord dish assembly at least comprises stay cord dish, driving cam and guide plate, and the edge of guide plate is along the circumferential direction provided with for by the inertial drive driving cam of guide plate and the shape line starting connecting sleeve and engage and drive driving cam return; According to other structure of the stay cord dish assembly of prior art, this shape line can be arranged according to driving cam, when rotating under the drive of stay cord dish at stay cord, driving cam departs from stay cord disk axis due to its rotation axis, thus it does revolution motion, and guide plate has rest inertia, shape line is had an effect to driving cam due to its inertia, make driving cam rotate around it axis to rotate, thus driving cam is engaged with startup connecting sleeve inner circle and starts connecting sleeve rotate by stay cord dribbling is dynamic, joint rear deflector rotates thereupon; During stay cord dish return, guide plate acts on driving cam by its rotator inertia and position corresponding with driving cam shape line, driving cam is separated with startup connecting sleeve inner circle, realizes the normal return of stay cord dish and the normal rotation of motor.
Further, stay cord dish assembly also comprises stay cord dish return torsion spring, described stay cord dish and guide plate are positioned at housing coaxially and be set in rotation with housing separately, stay cord dish is arranged and the return pretightening force of drawing veer contrary by stay cord dish return torsion spring, driving cam is set in rotation with the card of stay cord dish and comprises drive end and return end, described drive end is pawl structures, and starting connecting sleeve inner circle is the ratchet structure that can coordinate with drive end; The shape line of guide plate is used for engaging and drive return end to make driving cam return by the inertial drive drive end of guide plate with the ratchet structure starting connecting sleeve inner circle; This shape line can be arranged according to the drive end of driving cam and return end, when rotating under the drive of stay cord dish at stay cord, driving cam departs from stay cord disk axis due to its rotation axis, thus it does revolution motion, and guide plate has rest inertia, shape line is had an effect due to the drive end of its inertia to driving cam, make driving cam rotate around it axis to rotate, thus drive end is engaged with startup connecting sleeve inner circle and starts connecting sleeve rotate by stay cord dribbling is dynamic, joint rear deflector rotates thereupon; During return; stay cord dish return torsion spring acts on stay cord dish makes its return rotate; guide plate acts on return end by its rotator inertia and position corresponding with return end shape line, drive end is separated with startup connecting sleeve inner circle, realizes the normal return of stay cord dish and the normal rotation of motor.
Further, described housing is provided with the stay cord axle extended internally, and described stay cord dish is rotatably assorted and is coated at stay cord axle, and described guide plate is coaxially arranged at stay cord axle by guide plate axle; Form the structure of overcoat successively, make compact structure of the present invention, installing/dismounting is more convenient, and reduces costs.
Further, described guide plate male thread is equipped with in stay cord axle, described guide plate is rotatably assorted and is coated at guide plate axle, and it is protruding that described guide plate axle inner end is provided with the thrust preventing guide plate from deviating from, and on guide plate axle, overcoat has stage clip guide plate being pushed to thrust projection; Adopt screw-thread fit to be more conducive to installation and removal, and reliability is higher; By the setting of stage clip and thrust projection, the axial friction of guide plate can be increased, increase its rest inertia, be beneficial to startup; Meanwhile, carry out good axial limiting, ensure the accuracy diametrically of itself and driving cam, and can not depart from, ensure its reliability driven.
Further, described driving cam is set in rotation with stay cord dish by drive cam shaft, and described drive cam shaft is provided with the circlip of axial for driving cam locking; Ensure the axial limiting of driving cam, prevent from coming off.
Further, the drive end of driving cam and return end are arc-shaped transition; Be beneficial to shape line to realize driving to it, avoid blocking, make hand pull starting-up more smooth.
Further, the shape line at the edge of guide plate comprises combination and drives section and return to drive section, and described combination driving section and return driving section form the shape line that footpath concaves jointly, and described driving cam is positioned at the concave space of shape line formation; Adopt the shape line structure that concaves of footpath, structure is more compact in radial directions to make the present invention, and this structure be driving cam by radial half subsumption architecture, make to drive more reliable.
Further, described driving cam is that two radially symmetrical modes are arranged at stay cord dish, and described guide plate is corresponding with driving cam is provided with two shape lines; Owing to having symmetry properties, make guide plate and start in connecting sleeve hand uniform and stable, avoiding partial twist square occurs, ensure the smooth and easy of hand pull starting-up process.
Further, described stay cord disk center formation dish chamber, sunk structure centered by described guide plate and this sunk structure are positioned at dish chamber; Described startup connecting sleeve is fixedly connected on crankshaft end by fixing bolt, and the bolt end of described fixing bolt is positioned at the space that guide plate is formed by central concave structure, and this structure is beneficial to and ensures axially compact of the present invention, reduces volume, further simplified structure.
The motor of the present invention's also a kind of application engine hand pull starting-up assembly, described motor is provided with described engine hand pulling and starts assembly.
Beneficial effect of the present invention: engine hand pulling of the present invention starts assembly and motor thereof, the structure that hand pull starting-up assembly adopts the shape line of guide plate to drive driving cam to rotate, and this driving realizes for utilizing the inertia of guide plate, axially departing from the driving cam caused normally cannot stretch out the situation with return to avoid driving cam spring or release spring, greatly improve the reliability of hand pull starting-up assembly, and improve working life; Owing to not driving torsion spring and release spring, simplify the structure of hand pull starting-up assembly, be beneficial to installation and removal; As can be seen here, the present invention has simple general structure, and installation and removal are comparatively simple, there will not be to affect motor owing to driving torsion spring and release spring to lose efficacy cannot the problem of hand pull starting-up, and reduce use technology cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is free state structural representation of the present invention;
Fig. 3 is the structural representation of working state of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is free state structural representation of the present invention, Fig. 3 is the structural representation of working state of the present invention, as shown in the figure: the engine hand pulling of the present embodiment starts assembly, comprising housing 1, starting connecting sleeve 14 and the stay cord dish assembly for driving startup connecting sleeve 14 to rotate, as shown in the figure, housing 1 is fixedly connected with motor body, described startup connecting sleeve 15 coordinates with engine crankshaft 11 transmission, stay cord dish assembly comprises stay cord dish 3, stay cord dish return torsion spring 2, driving cam 8 and guide plate 13, described stay cord dish 3 and guide plate 13 are positioned at housing 1 coaxially and be set in rotation with housing 1 separately, stay cord dish 3 is arranged and the return pretightening force of drawing veer contrary by stay cord dish return torsion spring 2, driving cam 8 is set in rotation with the card of stay cord dish 3, driving cam 8 comprises drive end 81 and return end 82, described drive end 81 is pawl structures, starting connecting sleeve 14 inner circle is the ratchet structure 15 that can coordinate with drive end 81, the edge of guide plate 13 is along the circumferential direction provided with and engages and drive return end 82 to make the shape line 131 of driving cam 8 return for the inertial drive drive end 81 by guide plate 13 with the ratchet structure 15 starting connecting sleeve 14 inner circle, namely shape line 131 is positioned at the edge of guide plate 13, this edge is made to form the drive surface leaned on mutually with drive end 81 and the return end 82 of driving cam 8, this shape line 131 can be arranged according to the drive end 81 of driving cam 8 and return end 82, when stay cord dish 3 rotates under the drive of stay cord 16, driving cam 8 departs from stay cord dish 3 axis due to its rotation axis, thus it does revolution motion, and guide plate 13 has rest inertia, shape line 131 is had an effect due to the drive end 81 of its inertia to driving cam 8, make driving cam 8 rotate around it axis to rotate, thus drive end 81 is engaged with the ratchet structure 15 starting connecting sleeve 14 inner circle thus stay cord dish 3 is driven start connecting sleeve 14 to rotate, engage rear deflector 13 to rotate thereupon, during return, stay cord dish return torsion spring 2 acts on stay cord dish 3 makes its return rotate, equally, guide plate 13 acts on return end 82 by its inertia and position corresponding with return end shape line, drive end 81 is separated with the ratchet structure 15 starting connecting sleeve 14 inner circle, realizes the normal return of stay cord dish 3 and the normal rotation of motor.
In the present embodiment, described housing 1 is provided with the stay cord axle 4 extended internally, and described stay cord dish 3 is rotatably assorted and is coated at stay cord axle 4, and described guide plate 13 is coaxially arranged at stay cord axle 4 by guide plate axle 5; Form the structure of overcoat successively, make compact structure of the present invention, installing/dismounting is more convenient, and reduces costs.
In the present embodiment, described guide plate axle 5 screw-thread fit is arranged at stay cord axle 4, and described guide plate 13 is rotatably assorted and is coated at guide plate axle 5, and described guide plate axle 5 inner end is provided with the thrust projection 51 preventing guide plate 13 from deviating from, inner side refers to the side near motor, namely in housing; As shown in the figure, guide plate axle 5 is single ended bolt structure, and thrust projection 51 is the head of single ended bolt; On guide plate axle 5, overcoat has the stage clip 6 guide plate 13 being pushed to thrust projection 51; Adopt screw-thread fit to be more conducive to installation and removal, and reliability is higher; By the setting of stage clip 6 and thrust projection 51, the axial friction of guide plate 13 can be increased, increase its rest inertia, be beneficial to drive end and be separated with the joint of ratchet structure 15 and return starting connecting sleeve 14 inner circle; Meanwhile, carry out good axial limiting, ensure the accuracy diametrically of itself and driving cam 8, and can not depart from, ensure its reliability driven.
In the present embodiment, described driving cam 8 is set in rotation with stay cord dish 3 by drive cam shaft 7, and described drive cam shaft 7 is provided with the circlip 9 of axial for driving cam 8 locking; Ensure the axial limiting of driving cam 8, prevent from coming off.
In the present embodiment, drive end 81 and the return end 82 of driving cam 8 are arc-shaped transition; Be beneficial to shape line to realize driving to it, avoid blocking, make hand pull starting-up more smooth.
In the present embodiment, the shape line 131 at the edge of guide plate 13 comprises combination and drives section 131a and return to drive section 131b, described combination driving section 131a and return driving section 131b forms the shape line that footpath concaves jointly, and described driving cam 8 is positioned at the concave space that shape line 131 is formed; Adopt the shape line structure that concaves of footpath, structure is more compact in radial directions to make the present invention, and this structure be driving cam 8 by radial half subsumption architecture, make to drive more reliable.
In the present embodiment, described driving cam 8 is that two radially symmetrical modes are arranged at stay cord dish 3, and described guide plate 13 is corresponding with driving cam 8 is provided with two shape lines 131; Owing to having symmetry properties, make guide plate 13 and start connecting sleeve 14 uniform force to stablize, avoid partial twist square occurs, ensure the smooth and easy of hand pull starting-up process.
In the present embodiment, be formed centrally dish chamber 31 in described stay cord dish 3, sunk structure centered by described guide plate 13 and this sunk structure are positioned at dish chamber 31; Described startup connecting sleeve 14 is fixedly connected on bent axle 11 end by fixing bolt 12, the bolt end of described fixing bolt 12 is positioned at the space 10 that guide plate 13 is formed by central concave structure, this structure is beneficial to and ensures axially compact of the present invention, reduces volume, further simplified structure.
The motor of the present invention's also a kind of application engine hand pull starting-up assembly, described motor is provided with described engine hand pulling and starts assembly.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. an engine hand pulling starts assembly, it is characterized in that: comprise housing, start connecting sleeve and the stay cord dish assembly for driving startup connecting sleeve to rotate, described stay cord dish assembly at least comprises stay cord dish, driving cam and guide plate, the edge of guide plate is along the circumferential direction provided with for by the inertial drive driving cam of guide plate and the shape line starting connecting sleeve and engage and drive driving cam return, stay cord dish assembly also comprises stay cord dish return torsion spring, described stay cord dish and guide plate are positioned at housing coaxially and be set in rotation with housing separately, stay cord dish is arranged and the return pretightening force of drawing veer contrary by stay cord dish return torsion spring, driving cam is set in rotation with the card of stay cord dish and comprises drive end and return end, described drive end is pawl structures, starting connecting sleeve inner circle is the ratchet structure that can coordinate with drive end, the shape line of guide plate is used for engaging and drive return end to make driving cam return by the inertial drive drive end of guide plate with the ratchet structure starting connecting sleeve inner circle, the shape line at the edge of guide plate comprises combination and drives section and return to drive section, described combination driving section and return driving section form the shape line that footpath concaves jointly, and described driving cam is positioned at the concave space that shape line is formed.
2. engine hand pulling according to claim 1 starts assembly, and it is characterized in that: described housing is provided with the stay cord axle extended internally, described stay cord dish is rotatably assorted and is coated at stay cord axle, and described guide plate is coaxially arranged at stay cord axle by guide plate axle.
3. engine hand pulling according to claim 2 starts assembly, it is characterized in that: described guide plate male thread is equipped with in stay cord axle, described guide plate is rotatably assorted and is coated at guide plate axle, it is protruding that described guide plate axle inner end is provided with the thrust preventing guide plate from deviating from, and on guide plate axle, overcoat has stage clip guide plate being pushed to thrust projection.
4. engine hand pulling according to claim 3 starts assembly, it is characterized in that: described driving cam is set in rotation with stay cord dish by drive cam shaft, and described drive cam shaft is provided with the circlip of axial for driving cam locking.
5. engine hand pulling according to claim 4 starts assembly, it is characterized in that: described driving cam is that two radially symmetrical modes are arranged at stay cord dish, and described guide plate is corresponding with driving cam is provided with two shape lines.
6. engine hand pulling according to claim 5 starts assembly, it is characterized in that: described stay cord disk center formation dish chamber, sunk structure centered by described guide plate and this sunk structure is positioned at dish chamber; Described startup connecting sleeve is fixedly connected on crankshaft end by fixing bolt, and the bolt end of described fixing bolt is positioned at the space that guide plate is formed by central concave structure.
7. a motor for application engine hand pull starting-up assembly, is characterized in that: the engine hand pulling that described motor is provided with described in the arbitrary claim of claim 1 to 6 starts assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210137613.0A CN102817757B (en) | 2012-05-07 | 2012-05-07 | Engine manual start assembly and engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210137613.0A CN102817757B (en) | 2012-05-07 | 2012-05-07 | Engine manual start assembly and engine thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102817757A CN102817757A (en) | 2012-12-12 |
| CN102817757B true CN102817757B (en) | 2015-05-06 |
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ID=47302124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210137613.0A Expired - Fee Related CN102817757B (en) | 2012-05-07 | 2012-05-07 | Engine manual start assembly and engine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817757B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412096A (en) * | 2020-05-18 | 2020-07-14 | 重庆奥发斯智能科技有限公司 | Recoil starter |
| CN113847180B (en) * | 2021-10-19 | 2024-12-10 | 宁波大叶园林设备股份有限公司 | A hand pull starter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477305A (en) * | 2002-07-24 | 2004-02-25 | ��ʼ��ҵ��ʽ���� | Pull cord rewind starter |
| CN2784606Y (en) * | 2005-05-02 | 2006-05-31 | 重庆通盛机械工业有限公司 | Manual starting device for gasoline engine |
| CN2883713Y (en) * | 2005-12-12 | 2007-03-28 | 重庆隆鑫工业（集团）有限公司 | Hand starter of gasoline engine |
| CN101230822A (en) * | 2007-01-24 | 2008-07-30 | 开始工业株式会社 | coil spring starter |
| CN101498269A (en) * | 2008-02-02 | 2009-08-05 | 安德烈亚斯.斯蒂尔两合公司 | Starter apparatus for an internal combustion engine |
| CN202970998U (en) * | 2012-05-07 | 2013-06-05 | 隆鑫通用动力股份有限公司 | Engine started by hand pulling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6739303B2 (en) * | 2001-07-18 | 2004-05-25 | Starting Industrial Co., Ltd. | Recoil starter |
-
2012
- 2012-05-07 CN CN201210137613.0A patent/CN102817757B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477305A (en) * | 2002-07-24 | 2004-02-25 | ��ʼ��ҵ��ʽ���� | Pull cord rewind starter |
| CN2784606Y (en) * | 2005-05-02 | 2006-05-31 | 重庆通盛机械工业有限公司 | Manual starting device for gasoline engine |
| CN2883713Y (en) * | 2005-12-12 | 2007-03-28 | 重庆隆鑫工业（集团）有限公司 | Hand starter of gasoline engine |
| CN101230822A (en) * | 2007-01-24 | 2008-07-30 | 开始工业株式会社 | coil spring starter |
| CN101498269A (en) * | 2008-02-02 | 2009-08-05 | 安德烈亚斯.斯蒂尔两合公司 | Starter apparatus for an internal combustion engine |
| CN202970998U (en) * | 2012-05-07 | 2013-06-05 | 隆鑫通用动力股份有限公司 | Engine started by hand pulling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102817757A (en) | 2012-12-12 |
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