CN101520073A - Two-gear automatic clutch device for engine of fuel bicycle - Google Patents
Two-gear automatic clutch device for engine of fuel bicycle Download PDFInfo
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- CN101520073A CN101520073A CN200910029802A CN200910029802A CN101520073A CN 101520073 A CN101520073 A CN 101520073A CN 200910029802 A CN200910029802 A CN 200910029802A CN 200910029802 A CN200910029802 A CN 200910029802A CN 101520073 A CN101520073 A CN 101520073A
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Abstract
The invention relates to a two-gear automatic clutch device for an engine of a fuel bicycle, which is characterized in that: a low-speed clutch driving plate is arranged on a crankshaft through a spline, and a high-speed clutch driving plate is connected with a high-speed driving gear; a low-speed clutch friction disc is connected with a low-speed driving gear; a high-speed clutch friction disc is fixedly connected with the low-speed clutch friction disc back to back; the low-speed driving gear and the low-speed clutch friction disc are arranged on the crankshaft through an isolator; and the high-speed driving gear is sleeved on a shaft shoulder of the low-speed driving gear, a low-speed driven gear is arranged on a main shaft through the isolator, and a high-speed driven gear is arranged on the main shaft through a flat key. The device has simple structure and low manufacturing cost, can automatically realize clutch on-off and gear shifting without any operation, reduce engine speed, avoid the generation of engine overheat, avoid the gear damage and noise caused by the shock and the collision among gears when the gear is shifted by hand in the prior art, and prolong the service life of the gears.
Description
Technical field
The present invention relates to a kind of fuel bicycle, especially relate to a kind of two-gear automatic clutch device of engine of fuel bicycle.
Background technique
The most of single clutch structure that adopts of existing engine of fuel bicycle does not have gear, though this structure is simple, does not have transforming gear when travelling, and exists engine speed too high, the engine overheat phenomenon.Also have in the market can speed-change and gearshift fuel bicycle, it if want the gear shift position, just must make engine retard earlier when fuel bicycle travels, spur clutch handle then, after making clutch separation, pin is stepped on Shift lever and is stirred reverse shift fork again, makes the different gear mesh engagements on main shaft and the countershaft, realizes shifted, need use both hands and feet during gear shift, complex operation, and the speed change engaging and disengaging gear complex structure of this fuel bicycle, manufacture cost is also higher.
Summary of the invention
The applicant has carried out research and has improved at above-mentioned problem, and a kind of two-gear automatic clutch device of engine of fuel bicycle is provided, and it is simple in structure, and low cost of manufacture need not operation and can realize clutch gearshift automatically.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of two-gear automatic clutch device of engine of fuel bicycle, comprise bent axle, main shaft, low-speed clutch and high-speed clutch, low-speed clutch and high-speed clutch are centrifugal shoe block type clutch, on bent axle, the high-speed clutch driving disc is connected with the high speed driving gear low-speed clutch driving disc by the spline device; The low-speed clutch friction disk is connected with low-speed active gear, the high-speed clutch friction disk is fixedlyed connected with the low-speed clutch friction disk is back-to-back, low-speed active gear and low-speed clutch friction disk by the one-way element device on bent axle, high speed driving tooth bye is enclosed within on the shaft shoulder of low-speed active gear, the low speed driven gear by the one-way element device on main shaft, the high speed driven gear by the flat key device on main shaft, low-speed active gear and the engagement of low speed driven gear, high speed driving gear and the engagement of high speed driven gear.
Further:
The number of teeth of described high speed driving gear is greater than the number of teeth of low-speed active gear, and the reduction speed ratio of low speed gear pair is greater than the reduction speed ratio of high-speed gear pair.
Technique effect of the present invention is:
The two-gear automatic clutch device of a kind of engine of fuel bicycle disclosed by the invention, simple in structure, low cost of manufacture need not operation and can realize automatically having reduced engine speed by clutch gearshift, avoids the generation of engine overheat phenomenon; Adopt the two-stage centrifugal shoe block type clutch form of low-speed clutch and high-speed clutch, the two-stage clutch disk adopts linkage structure back-to-back, and in high speed, during lower-speed state, respectively by two pairs of high-speed gear pair and the secondary transmission of low speed gear power, structure is significantly simplified, and reduction manufacture cost, when low engine speed is rotated, power drives the low speed gear auxiliary driving by low-speed clutch, after engine speed promotes, power drives the high gear auxiliary driving by high-speed clutch, the problem of complex operation when having solved gear shift in the prior art, realized finishing the automaitc shfit function of motor by different clutches, impacted between the gear when having avoided hand shift in the prior art and gear destruction and noise that collision causes, prolonged the working life of gear by change in rotational speed.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of centrifugal hoof piece.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, 2, the present invention includes bent axle 1, main shaft 10, low-speed clutch 5 and high-speed clutch 4, low-speed clutch 5 and high-speed clutch 4 are centrifugal shoe block type clutch, low-speed clutch driving disc 501 by the spline device on bent axle 1, high-speed clutch driving disc 401 is connected with high speed driving gear 3, in the present embodiment, high-speed clutch driving disc 401 is structure as a whole with high speed driving gear 3.Low-speed clutch driving disc 501 and high-speed clutch driving disc 401 connect 3 centrifugal hoof pieces 12 by pin 11 respectively, and extension spring 13 is installed in the groove of centrifugal hoof piece 12, and spacing for extension spring 13 with 3 flat spring catch 14.Low-speed clutch friction disk 502 is riveted together with low-speed active gear 2, high-speed clutch friction disk 402 is riveted together with the 502 back-to-back punching presses of low-speed clutch friction disk, low-speed active gear 2 is installed on bent axle 1 by one-way element 19 with low-speed clutch friction disk 502, high speed driving gear 3 skies are enclosed within on the shaft shoulder of low-speed active gear 2, can make structure compact more like this.On main shaft 10, high speed driven gear 8 installs on main shaft 10 by flat key 9 low speed driven gear 6 by one-way element 7 devices, low-speed active gear 2 and 6 engagements of low speed driven gear, high speed driving gear 3 and 8 engagements of high speed driven gear.The number of teeth of high speed driving gear 3 is greater than the number of teeth of low-speed active gear 2, and the reduction speed ratio of low speed gear pair (low-speed active gear 2 and low speed driven gear 6) is greater than the reduction speed ratio of high-speed gear pair (high speed driving gear 3 and high speed driven gear 8).
When the present invention works, bent axle 1 drives 501 rotations of low-speed clutch driving disc, drive centrifugal hoof piece 12 rotations that are installed on the low-speed clutch driving disc 501 simultaneously, when rotating speed reaches it in conjunction with rotating speed, centrifugal hoof piece 12 opens, contact with low-speed clutch friction disk 502, because low-speed clutch friction disk 502 and low-speed active gear 2 are riveted together, therefore power passes to low speed driven gear 6 by low-speed active gear 2, low speed driven gear 6 drives main shaft 10 by one-way element 7, the final gear 16 that gear 15 on the main shaft 10 drives on the starting shaft 17 rotates, and realize power output by the sprocket wheel 18 that links together with final gear 16, drive fuel bicycle and move ahead.Meanwhile main shaft 10 drives 8 rotations of high speed driven gear, and drive high speed driving gears 3 and be installed in also rotation together of centrifugal hoof piece 12 on the high-speed clutch driving disc 401 by high speed driven gear 8, because on the shaft shoulder of high speed driving gear 3 empty cover low-speed active gear 2, and the number of teeth of high speed driving gear 3 is greater than the number of teeth of low-speed active gear 2, the reduction speed ratio of low speed gear pair (low-speed active gear 2 and low speed driven gear 6) is greater than the reduction speed ratio of high-speed gear pair (high speed driving gear 3 and high speed driven gear 8), centrifugal hoof piece 12 rotating speeds in the centrifugal hoof piece 12 rotating ratio low-speed clutchs 5 in the high-speed clutch 4 are little many, therefore when the centrifugal hoof piece 12 of low-speed clutch 5 has just combined with low-speed clutch friction disk 502, centrifugal hoof piece 12 in the high-speed clutch 4 can not combine with high-speed clutch friction disk 402, high speed driven gear 3 carries out no-load idle running, this moment, high-speed clutch 4 was not worked, and power is transmitted by low-speed clutch 5 fully.
After the continuous rising of rotating speed, on reaching high-speed clutch driving disc 401 centrifugal hoof piece 12 in conjunction with rotating speed the time, centrifugal hoof piece 12 opens, combine with high-speed clutch friction disk 402, this moment, the high speed rotating of bent axle 1 directly was delivered on the main shaft 10 by low-speed clutch 5, high-speed clutch 4, high speed driving gear 3 and high speed driven gear 8.At this moment, because the reduction speed ratio of low speed gear pair (low-speed active gear 2 and low speed driven gear 6) is greater than the reduction speed ratio of high-speed gear pair (high speed driving gear 3 and high speed driven gear 8), the rotating speed of high speed driven gear 8 is higher than low speed driven gear 6, at this moment one-way element 7 plays a role, the idle running of low speed driven gear 6 no-loads, main shaft 10 is with high speed driven gear 8 high speed rotating, and by gear 15, final gear 16 and sprocket wheel 18 realization power outputs, drive the fuel bicycle high forward, thereby realize the automaitc shfit of motor.
In the present invention, one-way element 7 and one-way element 19 manufacture and design by prior art.
Claims (2)
1. the two-gear automatic clutch device of an engine of fuel bicycle, it is characterized in that: comprise bent axle, main shaft, low-speed clutch and high-speed clutch, low-speed clutch and high-speed clutch are centrifugal shoe block type clutch, on bent axle, the high-speed clutch driving disc is connected with the high speed driving gear low-speed clutch driving disc by the spline device; The low-speed clutch friction disk is connected with low-speed active gear, the high-speed clutch friction disk is fixedlyed connected with the low-speed clutch friction disk is back-to-back, low-speed active gear and low-speed clutch friction disk by the one-way element device on bent axle, high speed driving tooth bye is enclosed within on the shaft shoulder of low-speed active gear, the low speed driven gear by the one-way element device on main shaft, the high speed driven gear by the flat key device on main shaft, low-speed active gear and the engagement of low speed driven gear, high speed driving gear and the engagement of high speed driven gear.
2. according to the two-gear automatic clutch device of the described engine of fuel bicycle of claim 1, it is characterized in that: the number of teeth of described high speed driving gear is greater than the number of teeth of low-speed active gear, and the reduction speed ratio of low speed gear pair is greater than the reduction speed ratio of high-speed gear pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029802A CN101520073A (en) | 2009-03-25 | 2009-03-25 | Two-gear automatic clutch device for engine of fuel bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910029802A CN101520073A (en) | 2009-03-25 | 2009-03-25 | Two-gear automatic clutch device for engine of fuel bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101520073A true CN101520073A (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910029802A Pending CN101520073A (en) | 2009-03-25 | 2009-03-25 | Two-gear automatic clutch device for engine of fuel bicycle |
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| Country | Link |
|---|---|
| CN (1) | CN101520073A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909693A (en) * | 2016-05-24 | 2016-08-31 | 浙江尤奈特电机有限公司 | Transmission with torque control mechanism |
-
2009
- 2009-03-25 CN CN200910029802A patent/CN101520073A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909693A (en) * | 2016-05-24 | 2016-08-31 | 浙江尤奈特电机有限公司 | Transmission with torque control mechanism |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090902 |