CN103216371A - Air-cooled diesel engine pull-free starter - Google Patents
Air-cooled diesel engine pull-free starter Download PDFInfo
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- CN103216371A CN103216371A CN2013101615028A CN201310161502A CN103216371A CN 103216371 A CN103216371 A CN 103216371A CN 2013101615028 A CN2013101615028 A CN 2013101615028A CN 201310161502 A CN201310161502 A CN 201310161502A CN 103216371 A CN103216371 A CN 103216371A
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- pawl
- diesel engine
- ratchet
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Abstract
The invention provides an air-cooled diesel engine pull-free starter. The air-cooled diesel engine pull-free starter comprises a shell and a rotating shaft which is rotationally connected with the center of the bottom surface of the shell. The rotating shaft is a hollow shaft, a mandrel is fixedly arranged inside the rotating shaft, and a driven gear, a ratchet wheel, a volute spiral spring fixed plate, a volute spiral spring and a starting jaw base are sequentially arranged on the rotating shaft. The air-cooled diesel engine pull-free starter further comprises a cover plate, at least two starting jaws which are evenly distributed are fixedly connected between the starting jaw base and the cover plate through connecting pins, return devices are arranged on the starting jaws, wherein the return devices are used for preventing the starting jaws from swinging in the process of shock of a diesel engine. The return devices are used for limiting free swing of the starting jaws, the problems of friction of the starting jaws and starting jaw plates after the starter starts the diesel engine and clicking noise caused by the friction of the starting jaws and the starting jaw plates are solved, and therefore the friction of the starting jaws and the starting jaw plates and the clicking noise caused by the friction are reduced, and service life is prolonged.
Description
Technical field
The present invention relates to the diesel engine starting technical field, especially a kind of air-cooled diesel engine exempts to draw starter.
Background technique
Development along with agricultural economy, the farm mechanization degree progressively improves, agricultural cultivated machine is more and more universal, its power source is a diesel engine, diesel engine is that burning diesel oil obtains exergonic motor, it is big that it has power, thermal efficiency height, advantages such as economic performance is good, diesel engine must can make it enter operating condition by a cover starting mechanism before work, existing diesel engine starting device has the hand pull starting-up of employing and electricity to start two kinds, though the electricity Starting mode is convenient, but complex structure, and also inconvenience aspect maintenance, and adopt traditional hand pull starting-up pattern, the startup pawl that is starter can snap onto in the diesel engine pawl dish, and then realize that hand pulling starter drives diesel engine starting, find in actual applications, after starter drives diesel engine starting, can hear the sound of " clatter clatter clatter ", the discovery of tracing it to its cause drives diesel engine after the startup pawl stretches into diesel oil pawl dish after, at this moment starting pawl can reclaim again, but there is not good restriction owing to start pawl, if start pawl pawl head just in time vertically downward or when starting pawl and being parallel to horizontal line, starting pawl can be because action of gravity be past sagging, at this moment start pawl and will produce friction with the startup pawl dish of high speed rotating, thereby cause the sound of " clatter clatter clatter ", this will badly damaged startup pawl and startup pawl dish thereof.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the deficiencies in the prior art, provide a kind of air-cooled diesel engine to exempt to draw starter, it can limit the startup pawl well, prevents to start the pawl and the improper damage and the sound that causes that contact of its parts that match.
The technical solution adopted for the present invention to solve the technical problems is: a kind of air-cooled diesel engine exempts to draw starter, comprises shell and the rotating shaft that is rotationally connected with shell bottom center, and described rotating shaft is a hollow shaft, and its internal fixation is provided with mandrel;
Driven gear, ratchet, spiral spring fixed plate, spiral spring and startup pawl seat are installed in the described rotating shaft successively;
Described spiral spring fixed plate is fixedlyed connected with outer casing inner wall;
Be engaged with the pretension gear on the described driven gear, described pretension Gear center is provided with pre-mandrel, and described pre-mandrel one end bearing is in the spiral spring fixed plate, and the other end stretches out in shell and makes the pretension end;
Described ratchet end face is fixed in the driven gear end face, be engaged with ratchet on the hook tooth, described ratchet center is provided with pawl axis, pawl axis one end bearing is in the spiral spring fixed plate, the other end stretches out in shell and makes start end outward, is provided with between described driven gear and the ratchet opposing end faces and can makes the slipping device of ratchet at the driven gear end tank wobble;
Described spiral spring the inner is connected in rotating shaft, and the spiral spring outer end is fixed on the spiral spring fixed plate, and spiral spring also is covered with a spring box outward;
Also comprise cover plate, be fixedly connected with at least two uniform startup pawls by connecting pin between described startup pawl seat and the cover plate, described startup pawl is provided with the returning device that starts the pawl swing when being used to prevent the diesel engine vibrations, start between the pawl and be provided with the startup pawl fixed plate that is fixedly installed in the rotating shaft, be stamped the pawl dish that is coaxially installed on the mandrel on the described startup pawl seat, described pawl dish side is equipped with friction plate and pad successively, described pad pressing friction sheet is in pawl dish side, has the pressure spring that is used for roof pressure pawl dish internal face on the pawl dish inwall, described pressure spring is for being set in mandrel, and pawl dish outer wall is provided with and starts the corresponding pawl mouth of pawl.By on the startup pawl, returning device being set, can prevent that starting pawl freely swings in this programme, that is to say that utilizing limit stoper to pin starts pawl, not allow it center on connecting pin and freely rotate, and then solve the problem that the startup pawl freely swings.
Simple in structure in order to make, the present invention is further improved, described returning device comprises return spring, described return spring is arranged between startup pawl and the startup pawl seat and is set in connecting pin, described startup pawl seat has slot to make way with starting on contacted of the pawl, have the lug boss identical on the startup pawl seat surface relative with the slot to make way shape with slot to make way, described return spring is embedded in the slot to make way, have mounting hole on the described startup pawl tail end end face, return spring one end stretches into mounting hole, and the other end props up the slot to make way inwall.The structure of return spring itself forces the startup pawl can't stretch out from the pawl mouth under normal state, also promptly limited and started freely swinging of pawl, there are not other power to overcome the elastic potential energy of return spring because start pawl, and the design of the slot to make way in should further improving, purpose is return spring is buried underground wherein, guarantee that return spring is not shifted, do not lose efficacy that the lug boss of another side then is in order to strengthen the intensity at this place.
To start the flimsy problem that rigid impact causes between pawl and the diesel engine starting pawl dish in order solving, can to adopt following dual mode:
Described slipping device comprises and is fixedly mounted on two pieces of bearing pins on the ratchet end face, two pieces of bearing pins are about the revenue centre symmetry of ratchet, the end face of described driven gear is provided with two arc-shaped slots about the revenue centre symmetry of driven gear, and described ratchet is inlaid in the corresponding arc-shaped slot by described two pieces of bearing pins.
Described slipping device comprises and is fixedly mounted on two pieces of bearing pins on the driven gear end face, two pieces of bearing pins are about the revenue centre symmetry of driven gear, the end face of described ratchet is provided with two arc-shaped slots about the revenue centre symmetry of ratchet, and described two pieces of bearing pins are inlaid in the corresponding arc-shaped slot.
Above dual mode has all been realized the purpose of ratchet and the asynchronous rotation of driven gear, promptly can swing each other and skid, therefore its principle is as follows, the present invention is by promptly tightening the spiral spring tension process of clockwork spring in advance, then because the cause of click, ratchet is limited to be fixed, and driven gear can rotate a bit of distance under the effect of the elastic potential energy of spiral spring, and just can realizing starting pawl, this a bit of distance sends into smoothly in the hole of the startup pawl dish on the diesel engine, the i.e. prepackage earlier of this step starts pawl and starts in the pawl dish on diesel engine, and then unclamp ratchet, and the elastic potential energy of spiral spring is all discharged, drive the rotation at full speed of diesel engine flywheel again with this, and then startup diesel engine, by such method, the high-intensity direct rigid impact of avoiding has well prolonged service life of equipment.
Further, the central angle of described arc-shaped slot is 80～120 °.
Further, described startup pawl seat is that profile is connected or key connects with rotating shaft.
As preferably, described startup pawl has 2, and described pawl mouth has 2.
As preferably, described pretension gear and pre-mandrel are integral type or are connected by key.
In order to make that starting pawl can stretch out from the pawl mouth smoothly, described pawl mouth size is greater than starting the pawl head.
The invention has the beneficial effects as follows, the present invention is starting pawl place increase return spring, make that starting pawl can arbitrarily not rotate around connecting pin again, limited the action of starting dog well, having solved all the time, starter starts back startup pawl and starts the friction damage and the fricative sound that the pawl dish produces, friction damage and sound problem have obtained effective solution, thereby have reduced the wearing and tearing that start pawl and start the pawl dish, have increased the working life of entire equipment.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a tomograph of the present invention;
Fig. 2 is a three-dimensional explosive view of the present invention;
Fig. 3 is the slot to make way structural representation of startup pawl seat of the present invention;
Fig. 4 is the convex structure schematic representation of startup pawl seat of the present invention;
Fig. 5 is the structural representation of startup pawl of the present invention;
Fig. 6 is the structural representation of the ratchet of embodiments of the invention 1;
Fig. 7 is the structural representation of the driven gear of embodiments of the invention 1;
Fig. 8 is the part schematic representation of internal structure of the present invention;
Fig. 9 is the scheme of installation of return spring of the present invention.
1. shells among the figure, 2. rotating shaft, 3. mandrel, 4. driven gear, 41. arc-shaped slots, 5. ratchet, 6. spiral spring fixed plate, 7. spiral spring 8. starts the pawl seat, 81. slot to make way, 82. lug bosses, 9. pretension gear, 10. pre-mandrel, 101. pretension ends, 14. ratchets, 15. pawl axis, 151. start ends, 16. start pawl, 161. mounting hole, 17. start pawl fixed plate, 18. pawl dishes, 181. the pawl mouth, 19. friction plates, 20. pads, 21. bearing pin, 22. spring boxs, 23. return springs, 24. connecting pin, 25. pressure springs, 26. cover plates.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Shown in Fig. 1～8, the present invention includes shell 1 and the rotating shaft 2 that is rotationally connected with shell 1 bottom center, rotating shaft 2 is a hollow shaft, its internal fixation is provided with mandrel 3;
Spiral spring fixed plate 6 is fixedlyed connected with shell 1 inwall;
Be engaged with pretension gear 9 on the driven gear 4, pretension gear 9 centers are provided with pre-mandrel 10, and pre-mandrel 10 1 end bearings are in spiral spring fixed plate 6, and the other end stretches out in shell 1 and makes pretension end 101;
Spiral spring 7 the inners are connected in rotating shaft 2, and spiral spring 7 outer ends are fixed on the spiral spring fixed plate 6, the spiral spring 7 outer spring boxs 22 that also are covered with;
Also comprise cover plate 26, start between pawl seat 8 and the cover plate 26 and be fixedly connected with two uniform startup pawls 16 by connecting pin 24, start pawl 16 and be provided with the returning device that is used to prevent to start pawl 16 swings, start between the pawl 16 and be provided with the startup pawl fixed plate 17 that is fixedly installed in the rotating shaft 2, start on the pawl seat 8 and be stamped the pawl dish 18 that is coaxially installed on the mandrel 3, pawl dish 18 sides are equipped with friction plate 19 and pad 20 successively, pad 20 pressing friction sheets 19 are in pawl dish 18 sides, has the pressure spring 25 that is used for roof pressure pawl dish 18 internal faces on pawl dish 18 inwalls, pressure spring 25 is for being set in mandrel 3, pawl dish 18 outer walls are provided with and start pawl 16 corresponding pawl mouths 181, and pawl mouth 181 sizes are greater than starting pawl 16 heads.
Returning device comprises return spring 23, return spring 23 is arranged between startup pawl 16 and the startup pawl seat 8 and is set in connecting pin 24, start pawl seat 8 and have slot to make way 81 with starting on 16 contacted of the pawls, have the lug boss 82 identical on 8 of the startup pawl seats relative with slot to make way 81 shapes with slot to make way 81, return spring 23 is embedded in the slot to make way 81, have mounting hole 161 on the startup pawl 16 tail end end faces, return spring 23 1 ends stretch into mounting hole 161, and the other end props up slot to make way 81 inwalls.
In the present embodiment, pretension gear 9 is connected for integral type or by key with pre-mandrel 10.
Embodiment 2
Embodiment 2 and embodiment's 1 difference is that slipping device comprises and is fixedly mounted on two pieces of bearing pins 21 on driven gear 4 end faces, two pieces of bearing pins 21 are about the revenue centre symmetry of driven gear 4, the end face of ratchet 5 is provided with two arc-shaped slots 41 about the revenue centre symmetry of ratchet 5, two pieces of bearing pins 21 be inlaid in the corresponding arc-shaped slot 41, the central angle of arc-shaped slot 41 is 80 °.
The quantity of startup pawl 16 of the present invention is not limited to the embodiment in this specification, can carry out different choice according to different needs.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (9)
1. an air-cooled diesel engine exempts to draw starter, it is characterized in that: comprise shell (1) and be rotationally connected with the rotating shaft (2) of shell (1) bottom center, described rotating shaft (2) is a hollow shaft, and its internal fixation is provided with mandrel (3);
Driven gear (4), ratchet (5), spiral spring fixed plate (6), spiral spring (7) are installed in the described rotating shaft (2) successively and start pawl seat (8);
Described spiral spring fixed plate (6) is fixedlyed connected with shell (1) inwall;
Be engaged with pretension gear (9) on the described driven gear (4), described pretension gear (9) center is provided with pre-mandrel (10), described pre-mandrel (10) one end bearings are in spiral spring fixed plate (6), and the other end stretches out in shell (1) and makes pretension end (101);
Described ratchet (5) end face is fixed in driven gear (4) end face, be engaged with ratchet (14) on ratchet (5) tooth, described ratchet (14) center is provided with pawl axis (15), pawl axis (15) one end bearings are in spiral spring fixed plate (6), the other end stretches out in outside the shell (1) and makes start end (151), is provided with between described driven gear (4) and ratchet (5) opposing end faces and can makes the slipping device of ratchet (5) at driven gear (4) end tank wobble;
Described spiral spring (7) the inner is connected in rotating shaft (2), and spiral spring (7) outer end is fixed on the spiral spring fixed plate (6), the outer spring box (22) that also is covered with of spiral spring (7);
Also comprise cover plate (26), be fixedly connected with at least two uniform startup pawls (16) by connecting pin (24) between described startup pawl seat (8) and the cover plate (26), described startup pawl (16) is provided with the returning device that starts pawl (16) swing when being used to prevent the diesel engine vibrations, start between the pawl (16) and be provided with the startup pawl fixed plate (17) that is fixedly installed in the rotating shaft (2), be stamped the pawl dish (18) that is coaxially installed on the mandrel (3) on the described startup pawl seat (8), described pawl dish (18) side is equipped with friction plate (19) and pad (20) successively, described pad (20) pressing friction sheet (19) is in pawl dish (18) side, has the pressure spring (25) that is used for roof pressure pawl dish (18) internal face on pawl dish (18) inwall, described pressure spring (25) is for being set in mandrel (3), and pawl dish (18) outer wall is provided with and starts the corresponding pawl mouth of pawl (16) (181).
2. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described returning device comprises return spring (23), described return spring (23) is arranged between startup pawl (16) and the startup pawl seat (8) and is set in connecting pin (24), described startup pawl seat (8) has slot to make way (81) with starting on contacted of the pawl (16), have the lug boss (82) identical on startup pawl seat (8) face relative with slot to make way (81) shape with slot to make way (81), described return spring (23) is embedded in the slot to make way (81), have mounting hole (161) on described startup pawl (16) the tail end end face, return spring (23) one ends stretch into mounting hole (161), and the other end props up slot to make way (81) inwall.
3. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described slipping device comprises and is fixedly mounted on two pieces of bearing pins (21) on ratchet (5) end face, two pieces of bearing pins (21) are about the revenue centre symmetry of ratchet (5), the end face of described driven gear (4) is provided with two arc-shaped slots (41) about the revenue centre symmetry of driven gear (4), and described ratchet (5) is inlaid in the corresponding arc-shaped slot (41) by described two pieces of bearing pins (21).
4. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described slipping device comprises and is fixedly mounted on two pieces of bearing pins (21) on driven gear (4) end face, two pieces of bearing pins (21) are about the revenue centre symmetry of driven gear (4), the end face of described ratchet (5) is provided with two arc-shaped slots (41) about the revenue centre symmetry of ratchet (5), and described two pieces of bearing pins (21) are inlaid in the corresponding arc-shaped slot (41).
5. exempt to draw starter as claim 3 or 4 described air-cooled diesel engines, it is characterized in that: the central angle of described arc-shaped slot (41) is 80～120 °.
6. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described startup pawl seat (8) is connected for profile with rotating shaft (2) or key connects.
7. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described startup pawl (16) has 2, and described pawl mouth (181) has 2.
8. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described pretension gear (9) is connected for integral type or by key with pre-mandrel (10).
9. air-cooled diesel engine as claimed in claim 1 exempts to draw starter, it is characterized in that: described pawl mouth (181) size is greater than starting pawl (16) head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161502.8A CN103216371B (en) | 2013-05-03 | 2013-05-03 | Air-cooled diesel engine exempts to draw starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310161502.8A CN103216371B (en) | 2013-05-03 | 2013-05-03 | Air-cooled diesel engine exempts to draw starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216371A true CN103216371A (en) | 2013-07-24 |
| CN103216371B CN103216371B (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310161502.8A Active CN103216371B (en) | 2013-05-03 | 2013-05-03 | Air-cooled diesel engine exempts to draw starter |
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| Country | Link |
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| CN (1) | CN103216371B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812367A (en) * | 2019-03-25 | 2019-05-28 | 台州擎农机械有限公司 | A kind of starter |
| CN110608122A (en) * | 2019-11-07 | 2019-12-24 | 台州擎农机械有限公司 | Auxiliary starter of engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459558A (en) * | 2002-05-20 | 2003-12-03 | 开始工业株式会社 | Unrolling starter |
| JP2010265846A (en) * | 2009-05-15 | 2010-11-25 | Starting Ind Co Ltd | Starter of small engine |
| JP2011074856A (en) * | 2009-09-30 | 2011-04-14 | Hitachi Koki Co Ltd | Engine working machine |
| CN103075287A (en) * | 2013-02-07 | 2013-05-01 | 白文广 | Safety starter for air-cooled diesel engine |
| CN202914219U (en) * | 2012-11-12 | 2013-05-01 | 白文广 | Starter of air-cooled diesel engine |
| CN203214222U (en) * | 2013-05-03 | 2013-09-25 | 白文广 | Pull-free starter for air-cooled diesel engine |
-
2013
- 2013-05-03 CN CN201310161502.8A patent/CN103216371B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459558A (en) * | 2002-05-20 | 2003-12-03 | 开始工业株式会社 | Unrolling starter |
| JP2010265846A (en) * | 2009-05-15 | 2010-11-25 | Starting Ind Co Ltd | Starter of small engine |
| JP2011074856A (en) * | 2009-09-30 | 2011-04-14 | Hitachi Koki Co Ltd | Engine working machine |
| CN202914219U (en) * | 2012-11-12 | 2013-05-01 | 白文广 | Starter of air-cooled diesel engine |
| CN103075287A (en) * | 2013-02-07 | 2013-05-01 | 白文广 | Safety starter for air-cooled diesel engine |
| CN203214222U (en) * | 2013-05-03 | 2013-09-25 | 白文广 | Pull-free starter for air-cooled diesel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812367A (en) * | 2019-03-25 | 2019-05-28 | 台州擎农机械有限公司 | A kind of starter |
| CN110608122A (en) * | 2019-11-07 | 2019-12-24 | 台州擎农机械有限公司 | Auxiliary starter of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103216371B (en) | 2016-02-24 |
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