CN101705897B - Electrically-started double-linked gear for engine - Google Patents
Electrically-started double-linked gear for engine Download PDFInfo
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- CN101705897B CN101705897B CN2009101918518A CN200910191851A CN101705897B CN 101705897 B CN101705897 B CN 101705897B CN 2009101918518 A CN2009101918518 A CN 2009101918518A CN 200910191851 A CN200910191851 A CN 200910191851A CN 101705897 B CN101705897 B CN 101705897B
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- tooth
- gear shaft
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Abstract
The invention provides an electrically-started double-linked gear for an engine, which comprises a driving gear (1) and a driven gear (2) which are in a split-assembly structure, wherein the driving gear (1) is sleeved with a gear shaft (3) by tight fit, and the fit surface of the driving gear (1) and the gear shaft (3) is a circular conical surface; the driven gear (2) is connected with the gear shaft (3) by threads, and an elastic washer (4) is arranged between the end surfaces of the driving gear (1) and the driven gear (2). With simple structure, convenient processing and assembly and reliable use, the double-linked gear can cut off reaction torque transferred from a crankshaft when an engine is powered off and a crank has an instant kickback, so as to prevent a starting engine, a starting gear and an isolator from being damaged.
Description
Technical field
The present invention relates to the starting unit of motor car engine, especially electrically-started double-linked gear for engine.
Background technique
In the electric starter structure of motor, actuating motor links by the disk gear on duplicate gear and carrier gear and the engine crankshaft.During starting, the actuating motor output shaft drives duplicate gear, and duplicate gear drives carrier gear, and carrier gear drives crankshaft rotating by disk gear again, thereby pilots engine.
Not enough or other is former thereby when flame-out suddenly when meeting output torque in the vehicle operating, if this moment, the crank piston was just towards the operation of top dead center direction and near top dead center, at this moment of short duration back attack phenomenon can appear, it is the effect of crank piston compressed gas and instantaneous counter-rotating occurs, this instant reversal moment can (be carrier gear, disk gear to actuating motor, starting gear, as follows) and crank on one-way element have a negative impact, can make actuating motor, starting gear and one-way element and inefficacy when serious.In traditional motor electric starter structure, duplicate gear is a single piece, the instant reversal athletic meeting that recoil causes is delivered on the actuating motor by carrier gear and duplicate gear, if torque reaction has surpassed the load rating of actuating motor, actuating motor be will damage, and starting gear and one-way element damaged.
Summary of the invention
The problem to be solved in the present invention provides a kind of electrically-started double-linked gear for engine, when engine misses and crank when instantaneous recoil occurring, this duplicate gear can cut off from the next torque reaction of bent axle transmission, thereby avoids actuating motor, starting gear and one-way element to be damaged.
For solving the problems of the technologies described above, electrically-started double-linked gear for engine provided by the invention includes driving tooth and driven tooth, and driving tooth and driven tooth are assembled structures, driving tooth is fitted together by drive fit and gear bush, and the fitting surface of driving tooth and gear shaft is a conical surface.
Because driving tooth and driven tooth adopt assembled structure, the fitting surface of driving tooth and gear shaft is a conical surface, under the effect of axial precompression, can cooperate very closely between driving tooth and the gear shaft, as long as design the slipping torque between them, make slipping torque between starting torque and destrabilizing moment.Like this, duplicate gear with regard to can normal delivery the output torque of actuating motor to bent axle and pilot engine.When engine misses and crank when instantaneous recoil occurring; this instantaneous recoil moment is very big usually; greater than slipping torque; the moment that then will recoil because of occurring skidding between driving tooth and the gear shaft is cut off; recoil moment can not be delivered on the actuating motor, plays the purpose of protection actuating motor, starting gear and one-way element.Because recoil moment is again less than the destrabilizing moment between driving tooth and the gear shaft, so duplicate gear can also normally be brought into play the effect of forward carry-over moment.
Further, for being threaded, between driving tooth and the driven tooth end face elastic washer is installed between driven tooth and the gear shaft.Adopt between driven tooth and the gear shaft and be threaded, be easy to processing and assembling adjustment like this, and conveniently between driving tooth and driven tooth end face, elastic washer is installed, adjust its elastic force by the decrement of adjusting elastic washer, thereby the adjustment driving tooth contacts the pressure between the conical surface with gear shaft, and then adjusts its slipping torque.Can also reach the effect of adjusting its slipping torque by the tapering of adjusting driving tooth and gear shaft surface of contact.
The present invention is simple in structure, processing and assembling is convenient, use is reliable, has effectively avoided when engine misses and crank when instantaneous recoil occurring, and actuating motor, starting gear and one-way element are because of being subjected to the impaired problem of moment recoil moment.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is that schematic representation is used in the assembling of the embodiment of the invention;
Among the figure: 1. driving tooth; 2. driven tooth; 3. gear shaft; 31. wheel disc; 32. annular groove; 4. elastic washer; 5. actuating motor; 6. carrier gear; 7. bent axle; 8. disk gear.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of electrically-started double-linked gear for engine that the embodiment of the invention provides has driving tooth 1 and driven tooth 2, and driving tooth 1 is assembled structure with driven tooth 2 employings.Wherein, driving tooth 1 is sleeved on gear shaft 3 by drive fit, and the fitting surface of driving tooth 1 and gear shaft 3 is a conical surface; For being threaded, between driving tooth 1 and driven tooth 2 end faces elastic washer 4 is installed between driven tooth 2 and the gear shaft 3.
Under the effect of axial precompression, cooperate very closely between driving tooth 1 and the gear shaft 3, design the slipping torque between them, make slipping torque between starting torque and destrabilizing moment.When engine misses and crank when instantaneous recoil occurring; recoil moment is very big usually; greater than slipping torque; then can occur skidding between driving tooth 1 and the gear shaft 3; thereby the moment that will recoil is cut off; recoil moment can not be delivered on the actuating motor, plays the purpose of protection actuating motor, starting gear and one-way element.Because recoil moment is less than the destrabilizing moment between driving tooth and the gear shaft, so duplicate gear can also normally be brought into play the effect of forward carry-over moment.
Adopt between driven tooth 2 and the gear shaft 3 to be threaded, between driving tooth 1 and driven tooth 2 end faces elastic washer 4 is installed.Be easy to processing and assembling like this, and make things convenient for the installation of elastic washer 4, adjust its elastic force, thereby adjustment driving tooth 1 contacts the pressure between the conical surface with gear shaft 3, and then adjust its slipping torque by the decrement of adjusting elastic washer 4.Can also reach the effect of adjusting its slipping torque by the tapering of adjusting driving tooth 1 and gear shaft 3 surface of contact.Elastic washer 4 adopts dish-like elastic washer.
As can be seen from Figure 1: driving tooth 1 is sleeved on the wheel disc 31 of gear shaft 3 one ends, and the conical surface that matches with driving tooth 1 on the wheel disc 31 is provided with annular groove 32.One of annular groove 32 effect is, at the axial thickness that guarantees driving tooth 1 and wheel disc 31, thereby guarantees under the prerequisite of driving tooth 1 and wheel disc 31 intensity, adjusts surface of contact between them by annular groove 32 is set, and controls the slipping torque value between them.Two of annular groove 32 effects are, allow groove keep lubricant oil or lubricating ester when assembling, and lubricate when skidding between driving tooth 1 and gear shaft 3 is to reduce the fretting wear of surface of contact.
Fig. 2 is that schematic representation is used in the assembling of the embodiment of the invention, electric starter structure for motorcycle engine, the tooth of actuating motor 5 output axle heads and driving tooth 1 engagement, driven tooth 2 meshes with one of them tooth of carrier gear 6, another tooth of carrier gear 6 and 8 engagements of the disk gear on the bent axle 7.
Claims (3)
1. electrically-started double-linked gear for engine, comprise driving tooth (1), driven tooth (2) and gear shaft (3), it is characterized in that: driving tooth (1) is assembled structure with driven tooth (2), driving tooth (1) is sleeved on gear shaft (3) by drive fit, and the fitting surface of driving tooth (1) and gear shaft (3) is a conical surface.
2. electrically-started double-linked gear for engine as claimed in claim 1 is characterized in that: for being threaded, between driving tooth (1) and driven tooth (2) end face elastic washer (4) is installed between driven tooth (2) and the gear shaft (3).
3. electrically-started double-linked gear for engine as claimed in claim 1 or 2 is characterized in that: driving tooth (1) is sleeved on the wheel disc (31) of gear shaft (3) one ends, and wheel disc (31) is gone up the conical surface that matches with driving tooth (1) and is provided with annular groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101918518A CN101705897B (en) | 2009-12-10 | 2009-12-10 | Electrically-started double-linked gear for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101918518A CN101705897B (en) | 2009-12-10 | 2009-12-10 | Electrically-started double-linked gear for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101705897A CN101705897A (en) | 2010-05-12 |
| CN101705897B true CN101705897B (en) | 2011-06-08 |
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ID=42376143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101918518A Active CN101705897B (en) | 2009-12-10 | 2009-12-10 | Electrically-started double-linked gear for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705897B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374091A (en) * | 2011-10-31 | 2012-03-14 | 浙江春风动力股份有限公司 | Starting duplicate gear for motorcycle engine |
| CN103726968A (en) * | 2014-01-09 | 2014-04-16 | 重庆隆鑫发动机有限公司 | Overload protection type electrical starting duplicate gear and starting system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB150840A (en) * | 1919-06-18 | 1920-09-16 | George Holt Thomas | Improvements in or relating to variable-speed gearing |
| US3645147A (en) * | 1969-11-10 | 1972-02-29 | James W Fodrea | Transmission |
| CN2215600Y (en) * | 1995-06-29 | 1995-12-20 | 冯济国 | Electric starting device for engine of motorcycle |
| CN2252242Y (en) * | 1995-08-23 | 1997-04-16 | 李冰阳 | Right hood inserted motorcycle electric start device |
| CN2670620Y (en) * | 2003-12-19 | 2005-01-12 | 刘保印 | Mainspring diesel engine starter |
| CN201011332Y (en) * | 2006-11-21 | 2008-01-23 | 洛阳北方易初摩托车有限公司 | Starting mechanism of pedal motorcycle engine |
-
2009
- 2009-12-10 CN CN2009101918518A patent/CN101705897B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB150840A (en) * | 1919-06-18 | 1920-09-16 | George Holt Thomas | Improvements in or relating to variable-speed gearing |
| US3645147A (en) * | 1969-11-10 | 1972-02-29 | James W Fodrea | Transmission |
| CN2215600Y (en) * | 1995-06-29 | 1995-12-20 | 冯济国 | Electric starting device for engine of motorcycle |
| CN2252242Y (en) * | 1995-08-23 | 1997-04-16 | 李冰阳 | Right hood inserted motorcycle electric start device |
| CN2670620Y (en) * | 2003-12-19 | 2005-01-12 | 刘保印 | Mainspring diesel engine starter |
| CN201011332Y (en) * | 2006-11-21 | 2008-01-23 | 洛阳北方易初摩托车有限公司 | Starting mechanism of pedal motorcycle engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101705897A (en) | 2010-05-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Longxin Engine Ltd. Assignor: Chongqing Longxin Engine Co., Ltd. Contract record no.: 2012500000045 Denomination of invention: Electrically-started double-linked gear for engine Granted publication date: 20110608 License type: Exclusive License Open date: 20100512 Record date: 20120508 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100512 Assignee: Chongqing Longxin Engine Ltd. Assignor: Chongqing Longxin Engine Co., Ltd. Contract record no.: 2012500000045 Denomination of invention: Electrically-started double-linked gear for engine Granted publication date: 20110608 License type: Exclusive License Record date: 20120508 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |