CN202371149U - Driven gear device for motorcycle engine - Google Patents
Driven gear device for motorcycle engine Download PDFInfo
- Publication number
- CN202371149U CN202371149U CN2011204245461U CN201120424546U CN202371149U CN 202371149 U CN202371149 U CN 202371149U CN 2011204245461 U CN2011204245461 U CN 2011204245461U CN 201120424546 U CN201120424546 U CN 201120424546U CN 202371149 U CN202371149 U CN 202371149U
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- China
- Prior art keywords
- driven gear
- chute
- motorcycle
- steel ball
- hole slot
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Abstract
The embodiment of the utility model provides a driven gear device for a motorcycle. The device comprises a driven gear and a transmission auxiliary shaft, wherein the driven gear is arranged on the transmission auxiliary shaft; an internal spline is arranged on the internal surface of the driven gear and meshed with an external spline of the transmission auxiliary shaft; at least three hole grooves are formed on the internal spline of the driven gear; steel balls are arranged in the hole grooves; the diameter of the steel balls is smaller than the depth of the hole grooves; the transmission auxiliary shaft is provided with the external spline and sliding grooves; the sliding grooves correspond to the hole grooves of the driven gear; and the depth of the sliding grooves is smaller than the diameter of the steel balls. By the driven gear device in the embodiment of the utility model, the safety of a driver can be ensured through the position change of the steel balls.
Description
Technical field
The utility model relates to motorcycle speed variator system technical field, relates in particular to a kind of motorcycle engine and uses the driven gear device.
Background technique
The motorcycle speed change is regulated realization through on speed change gear, carrying out gear; One end (input end) of speed change gear is through the gearwheel and the engagement of the output gear on the engine crankshaft of clutch, and the other end (output terminal) is connected with the wheel of motorcycle through output sprocket, chain.The speed change gear set inside has many to gear that how many numbers of teeth differ, and realizes speed change through the corresponding gear ratio of different gears during speed change, and different gears have different gear reduction ratios.The speed change gear of present motorcycle on the market adopts the gear shift mode of " diaxon five keeps off or six grades " usually.The speed change gear of this mode comprises the transmission main shaft that a plurality of driving gears are installed and the transmission countershaft of a plurality of driven gears, and clutch is installed on the transmission main shaft, and output sprocket is installed on the transmission countershaft; Transmission main shaft and countershaft side are provided with one to two declutch shift shaft and shift drum, and shift fork is installed on the declutch shift shaft, on the shift drum flute profile cam are arranged; The straight pin of shift fork is installed in the middle of the flute profile cam of shift drum, rotates shift drum shift fork and moves axially, and shift fork inserts in the fork slot of shift gear; Driving the shift gear when shift fork moves moves axially; Shift fork moves to different positions and can make many on the major and minor axle other gear is not participated in the transmission of power to a pair of transferring power in the middle of the gear, also transferring power not during neutral; Time has only a pair of gear can transferring power except that neutral gear, can realize the different speed ratios transmission.Driven gear on the transmission countershaft of tradition speed change gear; When motorcycle starting carrying out gear was regulated, each gear all can use, and speed is zero during the motorcycle starting; When starting to walk, high gear is prone to cause engine misses owing to the moment of torsion deficiency; And engine component caused greater impact, also possibly cause motorcycle to quicken suddenly, and the driver there is not mental preparation to cause people's car to separate dangerous generation.
The model utility content
In view of this; The utility model embodiment's purpose is to provide a kind of motorcycle to use driven gear mechanism; Through reasonable improvement to this driven gear, transmission countershaft; Only can use one grade of low speed so that motorcycle recurs when going on foot after parking, thereby guarantee driver's safety and can eliminate the greater impact that motorcycle acceleration suddenly causes engine component.
The utility model embodiment provides motorcycle and uses the driven gear device; Comprise driven gear and transmission countershaft, wherein: said driven gear is installed on the said transmission countershaft, and the inner face of said driven gear is provided with internal spline; The internal spline of said driven gear is used for the external splines engagement with said transmission countershaft; The internal spline of said driven gear is provided with at least three hole slots, and steel ball is installed in the said hole slot, and the diameter of said steel ball is less than the degree of depth of said hole slot; Said transmission countershaft is provided with external splines and chute, and said chute is corresponding with the hole slot position of driven gear, and the degree of depth of said chute is less than the diameter of said steel ball.
Preferably, said hole slot is three, between hole slot and hole slot be spaced apart 120 the degree; Three of said chutes, between chute and chute be spaced apart 120 the degree.
The described technological scheme of the utility model embodiment is rationally improved traditional driven gear mechanism; Inner face at driven gear is provided with internal spline; The hole slot that can place steel ball is set on internal spline; The hole slot degree of depth is provided with chute accordingly greater than steel ball size on the external splines of transmission countershaft, the chute degree of depth is less than steel ball size.Compared with prior art, when using the utility model embodiment's driven gear mechanism, when motorcycle is started to walk; Steel ball in the hole slot of horizontal line top causes the slip of driven gear limited because the self gravitation effect will drop in the chute of transmission countershaft, and motorcycle can't be hung into two retainings and above each gear; After the motorcycle one retaining starting speed of a motor vehicle is greater than critical speed; The countershaft rotating speed is simultaneously greater than critical speed of rotation, and the steel ball in the chute is owing to the effect that receives rotary centrifugal force " is got rid of " from chute in the hole slot of going into driven gear, and the effect that slip limits to driven gear no longer exists; Thereby be free to regulation stall, motorcycle can be controlled normally.
Description of drawings
Fig. 1 is the sectional structure chart of existing technology driven gear device;
Fig. 2 is the utility model driven gear device embodiment's a sectional structure chart;
Horizontal section structural drawing when Fig. 3 (a) is the utility model embodiment state of rest;
Fig. 3 (b) is the utility model embodiment horizontal section structural drawing during greater than critical speed of rotation;
Fig. 4 is the structural drawing of the utility model embodiment application scenarios.
The title that the reference character that above accompanying drawing uses is corresponding is following:
Embodiment
The utility model embodiment transforms traditional driven gear device; Inner face at driven gear is provided with internal spline, and hole slot is set on the internal spline, and steel ball is installed in the hole slot; The diameter of steel ball is less than the hole slot degree of depth; Corresponding transmission countershaft is provided with external splines and chute, and chute is corresponding with the hole slot position of driven gear, and the chute degree of depth is less than steel ball size.This driven gear device is when motorcycle is started to walk; Steel ball in the hole slot of horizontal line top causes the slip of driven gear limited because the self gravitation effect will drop in the chute of transmission countershaft, and motorcycle can't be hung into two retainings and above each gear; Can only one grade of starting; People's car of having avoided the possible unexpected acceleration of motorcycle to bring separates dangerous generation, and then has protected driver's safety, and can eliminate the greater impact of starting-up process to engine component.
In order more to be expressly understood the technical characteristics of the utility model, the utility model is done further detailed description again below in conjunction with accompanying drawing and specific embodiment.
The motorcycle engine that the utility model provides with driven gear device embodiment shown in accompanying drawing 2.This embodiment comprises driven gear and transmission countershaft 8; Wherein: said driven gear is installed on the transmission countershaft 8; The inner face of said driven gear is provided with internal spline, and the internal spline of said driven gear is used for the external splines engagement with transmission countershaft 8, and the internal spline of said driven gear is provided with three hole slots; Steel ball 7 is installed in the hole slot, and the diameter of steel ball 7 is less than the degree of depth of hole slot; Said transmission countershaft 8 is provided with external splines and chute, and said chute is corresponding with the hole slot position of driven gear, and the degree of depth of chute is less than the diameter of steel ball 7.The working principle of this driven gear device is: during the motorcycle vehicle stop state; Steel ball in the hole slot of horizontal line top is owing to the effect of self gravitation will drop in the chute of transmission countershaft; Cause the slip of driven gear limited; Motorcycle can't be hung into two retainings and above each gear, can only one grade of starting, referring to accompanying drawing 3 (a); The motorcycle starting back speed of a motor vehicle increases, and the transmission countershaft rotating speed increases, and the rotary centrifugal force that the steel ball in the transmission countershaft chute receives increases; The rotating speed of transmission countershaft greater than critical speed of rotation after; Steel ball " gets rid of " from chute in the hole slot of going into driven gear, and its effect to driven gear slip restriction no longer exists, thereby is free to regulation stall; Motorcycle can be controlled normally, referring to accompanying drawing 3 (b).
The described technological scheme of the utility model embodiment is rationally improved traditional driven gear device; Inner face at driven gear is provided with internal spline; The hole slot that can place steel ball is set on internal spline; The hole slot degree of depth is provided with chute accordingly greater than steel ball size on transmission countershaft, the chute degree of depth is less than steel ball size.Compare with the existing technology structure; When using the utility model embodiment's driven gear device, during the motorcycle starting, the steel ball in the hole slot of horizontal line top will drop in the chute of transmission countershaft owing to the self gravitation effect; Cause the slip of driven gear limited; Motorcycle can't be hung into two retainings and above each gear, can only one grade of starting, and people's car of having avoided the possible unexpected acceleration of motorcycle to bring separates dangerous generation; And then protected driver's safety, and can eliminate the greater impact of starting-up process to engine component.
When the speed of a motor vehicle of motorcycle during greater than certain predefined value, the rotating speed of transmission countershaft is greater than critical speed of rotation in the foregoing description, and steel ball will be thrown off the transmission countershaft chute fully, and when the motorcycle speed of a motor vehicle during less than certain predefined value, steel ball falls into the chute on the transmission countershaft; The validity of the determining positions limit function of steel ball in driven gear hole slot and transmission countershaft chute; Transmission countershaft critical speed of rotation value depends on the size of steel ball quality and transmission countershaft chute radius; The utility model embodiment's transmission countershaft rotating speed is during greater than critical speed of rotation; Steel ball will be disengaged the restriction of driven gear, can between each gear, regulate arbitrarily.Generally speaking steel ball in the foregoing description does not have the special substance requirement, as long as can satisfy restriction to driven gear, but for requirement durable in use and that satisfy intensity, the preferred Bearing Steel of the embodiment of the utility model.
An instance of the foregoing description; Comprise transmission countershaft, comprise a plurality of driven gears on this transmission countershaft, the driven gear corresponding position that wherein is positioned at transmission countershaft the right has a chute; The residing position of steel ball when this chute is the motorcycle starting; Because steel ball size is greater than the chute degree of depth, thereby steel ball is positioned at some outside the chute, thus the slip of restriction driven gear; The driven gear inner face has two internal splines; Be used for two external splines engagements with transmission countershaft; Three hole slots are set on the internal spline of driven gear, steel ball are installed in the hole slot, the motorcycle one retaining starting speed of a motor vehicle greater than the rotating speed of critical speed, transmission countershaft greater than critical speed of rotation after; Steel ball in the chute is owing to the effect that receives rotary centrifugal force " is got rid of " in the hole slot of going into driven gear from chute; It no longer exists the restriction that driven gear slides, thereby driven gear is free to regulation stall, and motorcycle can be controlled normally.For ease of further understanding the technical characteristics of the utility model; Accompanying drawing 4 shows the utility model embodiment's application scenarios figure; From figure, can find out the driven gear Unit Installation position of the utility model; And with the matching relationship of other corresponding parts of motorcycle, the reference character in the accompanying drawing sees also the record of description of drawings part.Introduce because the overall operation principle in motorcycle of driven gear device, role are existing in the prior art, for for the purpose of the saving length, repeat no more here.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (2)
1. a motorcycle engine is used the driven gear device, it is characterized in that, this device comprises driven gear and transmission countershaft; Wherein: said driven gear is installed on the said transmission countershaft; The inner face of said driven gear is provided with internal spline, and the internal spline of said driven gear is used for the external splines engagement with said transmission countershaft, and the internal spline of said driven gear is provided with at least three hole slots; Steel ball is installed in the said hole slot, and the diameter of said steel ball is less than the degree of depth of said hole slot; Said transmission countershaft is provided with external splines and chute, and said chute is corresponding with the hole slot position of said driven gear, and the degree of depth of said chute is less than the diameter of said steel ball.
2. driven gear device according to claim 1 is characterized in that, said hole slot is three, between hole slot and hole slot be spaced apart 120 the degree; Said chute is three, between chute and chute be spaced apart 120 the degree.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204245461U CN202371149U (en) | 2011-10-31 | 2011-10-31 | Driven gear device for motorcycle engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204245461U CN202371149U (en) | 2011-10-31 | 2011-10-31 | Driven gear device for motorcycle engine |
Publications (1)
Publication Number | Publication Date |
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CN202371149U true CN202371149U (en) | 2012-08-08 |
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Application Number | Title | Priority Date | Filing Date |
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CN2011204245461U Expired - Lifetime CN202371149U (en) | 2011-10-31 | 2011-10-31 | Driven gear device for motorcycle engine |
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CN (1) | CN202371149U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102359588A (en) * | 2011-10-31 | 2012-02-22 | 浙江春风动力股份有限公司 | Driven gear device for motorcycle engine |
-
2011
- 2011-10-31 CN CN2011204245461U patent/CN202371149U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102359588A (en) * | 2011-10-31 | 2012-02-22 | 浙江春风动力股份有限公司 | Driven gear device for motorcycle engine |
CN102359588B (en) * | 2011-10-31 | 2015-02-04 | 浙江春风动力股份有限公司 | Driven gear device for motorcycle engine |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20120808 |