CN205135795U - High compression ratio piston engine's non - round gear change mechanism of bent axle - Google Patents
High compression ratio piston engine's non - round gear change mechanism of bent axle Download PDFInfo
- Publication number
- CN205135795U CN205135795U CN201520933243.0U CN201520933243U CN205135795U CN 205135795 U CN205135795 U CN 205135795U CN 201520933243 U CN201520933243 U CN 201520933243U CN 205135795 U CN205135795 U CN 205135795U
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- bent axle
- gear
- noncircular gear
- circular gear
- piston
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Abstract
The utility model discloses a high compression ratio piston engine's non - round gear change mechanism of bent axle, which comprises a frame, the bent axle, variable speed non -circular gear group and flywheel, the bent axle is connected at the frame middle part, variable speed non -circular gear group is connected to bent axle one end, variable speed non -circular gear group is including first non -circular gear, second non -circular gear group and third non -circular gear, non - round pinion of second and the non - round gear wheel of second are connected through the shaft, first non -circular gear is organized with the second non -circular gear and is meshed mutually, second non -circular gear group and third non -circular gear mesh mutually, the third non -circular gear is connected through the shaft with the flywheel. Compared with the prior art, the utility model discloses more steady angular speed and moment of torsion can be obtained, piston engine is reduced because the phenomenon of detonation that the high compression ratio was brought when the operation to improve piston engine life.
Description
Technical field
The utility model relates to mechanical equipment technical field, is specifically related to the piston-engined crank shaft non-circular gear shift of a kind of high compression ratio.
Background technique
Piston engine is also Reciprocating engine, it is a kind of motor utilizing one or more piston pressure to be converted to rotation function, piston engine is the one of heat engine, by gasoline, the fuel such as diesel oil provide power, the piston engine that compression ratio is larger, its performance and manufacture process requirement higher, require higher to oil product label, the petrol engine compression ignite limit is 12: 1 diesel oil is then 24: 1, isooctane percent value is lower, impurity is more, then pinking can be shifted to an earlier date, affect Power output and damage motor original paper, to oil spray heat resisting, withstand voltage and other materials requires higher the large piston engine of compression ratio, relative upkeep cost improves thereupon, gasoline impurity many isooctane value is low, pinking and idling can be caused to damage original paper, so use high standard oil product, such user cost rises thereupon, and there is the piston engine of higher compression ratios in use, compression ratio is larger, moment of torsion is larger, fuel efficiency is higher, but piston engine vibrations are larger, shake stronger when producing resonance, pinking can be produced, produce carbon deposit etc. problem.
Model utility content
The purpose of this utility model is to provide one can obtain angular velocity and moment of torsion more stably, reduce piston engine operationally due to the phenomenon of detonation that high compression ratio is brought, and improve the piston-engined crank shaft non-circular gear shift of high compression ratio in piston engine working life.
For achieving the above object, the utility model provides following technological scheme:
The piston-engined crank shaft non-circular gear shift of a kind of high compression ratio, comprise frame, bent axle, speed change noncircular gear group and flywheel, central rack connects bent axle, bent axle one end connects speed change noncircular gear group, speed change noncircular gear group comprises the first noncircular gear, second noncircular gear group and the 3rd noncircular gear, second not rounded small gear is connected by wheel shaft with the second not rounded gearwheel, first noncircular gear is meshed with the second noncircular gear group, second noncircular gear group and the 3rd noncircular gear are meshed, 3rd noncircular gear is connected by wheel shaft with flywheel.
As the further improvement of above-mentioned technology, described second noncircular gear group comprises not rounded small gear and not rounded gearwheel.
As the further improvement of above-mentioned technology, described first noncircular gear, the second not rounded small gear, the second not rounded gearwheel and the 3rd noncircular gear adopt oval gear.
Compared with prior art; the beneficial effects of the utility model are: by arranging speed change noncircular gear group structure; make flywheel when piston engine is done work; moment of torsion tends to be steady; play the effect that rack drives gear runs, obtain angular velocity and moment of torsion more stably, reduce piston engine operationally due to phenomenon of detonation that high compression ratio is brought; extend high compression ratio piston-engined working life simultaneously, there is preferably protective value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-frame, 2-bent axle, 3-speed change noncircular gear group, 31-first noncircular gear, 32-second noncircular gear group, 33-the 3rd noncircular gear, 4-flywheel.
Embodiment
Be described in more detail below in conjunction with the technological scheme of embodiment to this patent.
The piston-engined crank shaft non-circular gear shift of a kind of high compression ratio, comprise frame 1, bent axle 2, speed change noncircular gear group 3 and flywheel 4, bent axle 2 is connected in the middle part of frame 1, bent axle 2 one end connects speed change noncircular gear group 3, speed change noncircular gear group 3 comprises the first noncircular gear 31, second noncircular gear group 32 and the 3rd noncircular gear 33, second noncircular gear group 32 comprises the second not rounded small gear and the second not rounded gearwheel, second not rounded small gear is connected by wheel shaft with the second not rounded gearwheel, first noncircular gear 31 is meshed 32 with the second noncircular gear group, second noncircular gear group 32 and the 3rd noncircular gear 33 are meshed, 3rd noncircular gear 33 is connected by wheel shaft with flywheel 4, the utility model first noncircular gear 31, second not rounded small gear, second not rounded gearwheel and the 3rd noncircular gear 33 adopt oval gear.
During utility model works, speed change noncircular gear group 3 is connected by bent axle 2 in the middle part of frame 1, piston linear conversion of motion in piston IC engine is the circular movement of gear by bent axle 2, structure is simple, practical, speed change noncircular gear group 3 is by the first noncircular gear 31, second noncircular gear group 32 and the 3rd noncircular gear 33 form, its velocity ratio is approximately equal to 2, when by the transform linear motion of piston being the circumference rotary motion of gear, torque ripple is larger, the angular velocity change of gear also greatly, show according to the measured result of engine piston downward movement data, as piston 1mm descending by top dead center, bent axle 2 rotates 20 degree, when piston continues to come downwards to 2.8mm, bent axle 2 rotates 40 degree, as descent of piston 5mm, bent axle 2 rotates 60 degree, as descent of piston 6mm, bent axle 2 rotates 80 degree, as descent of piston 7mm, bent axle 2 rotates 100 degree, when piston be positioned at top dead center place carry out motion 1mm time, bent axle 2 windup-degree is 20 degree, and when piston moves to medium position, piston runs 7mm, bent axle 2 windup-degree just reaches 20 degree, namely piston runs 1mm, bent axle 2 reverses 3 degree, 1/7 of top dead center place, according to the data display of actual measurement descent of piston acting, when the pressure that cylinder pressure produces for 7.5kg quality, at top dead center and 10 degree of some places, the torque of bent axle 2 is 0.9kg/8cm, now bent axle 2 is easily stuck, at 20 degree of some places, bent axle 2 torque is 1.7kg/8cm, 40 degree of some places are 3.5kg/8cm, 60 degree of some places are 5kg/8cm, 80 degree of some places are 6kg/8cm, 100 degree of some places are 6.5kg/8cm, pass through measured data, can find out that piston is minimum in top dead center place efficiency, under the downstream pressure that 7.5kg quality produces, bent axle 2 just reaches 0.9kg/8cm at top dead center place moment of torsion, and gyration is herein 20 degree/mm, when descent of piston is to stroke half position, namely bent axle 2 angle reaches 90 degree, piston gyration is 20 degree/7mm, average 1mm rotates 3 degree, therefore desirable moment of torsion reduces bent axle 2 angular velocity at the minimum place of efficiency (i.e. top dead center place), large crankshaft 2 angular velocity is added at efficiency biggest place (i.e. 90 degree of places), the utility model is by arranging speed change noncircular gear group 3 structure, make flywheel 4 when piston does work, moment of torsion tends to be steady, play the effect that rack drives gear runs, obtain angular velocity and moment of torsion more stably, piston engine can be reduced operationally due to phenomenon of detonation that high compression ratio is brought, speed change noncircular gear group 3 pairs of piston engines play a good protection, improve piston-engined working life.
The foregoing is only the utility model preferred embodiment; not thereby mode of execution of the present utility model and protection domain is limited; to those skilled in the art; the equivalent replacement that all utilization the utility model specifications and diagramatic content are made and the scheme that apparent change obtains should be recognized, all should be included in protection domain of the present utility model.
Claims (3)
1. the piston-engined crank shaft non-circular gear shift of high compression ratio, comprise frame, bent axle, speed change noncircular gear group and flywheel, it is characterized in that, central rack connects bent axle, bent axle one end connects speed change noncircular gear group, speed change noncircular gear group comprises the first noncircular gear, second noncircular gear group and the 3rd noncircular gear, second not rounded small gear is connected by wheel shaft with the second not rounded gearwheel, first noncircular gear is meshed with the second noncircular gear group, second noncircular gear group and the 3rd noncircular gear are meshed, 3rd noncircular gear is connected by wheel shaft with flywheel.
2. the piston-engined crank shaft non-circular gear shift of high compression ratio according to claim 1, is characterized in that, described second noncircular gear group comprises not rounded small gear and not rounded gearwheel.
3. the piston-engined crank shaft non-circular gear shift of high compression ratio according to claim 1, is characterized in that, described first noncircular gear, the second not rounded small gear, the second not rounded gearwheel and the 3rd noncircular gear adopt oval gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933243.0U CN205135795U (en) | 2015-11-23 | 2015-11-23 | High compression ratio piston engine's non - round gear change mechanism of bent axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933243.0U CN205135795U (en) | 2015-11-23 | 2015-11-23 | High compression ratio piston engine's non - round gear change mechanism of bent axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135795U true CN205135795U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520933243.0U Expired - Fee Related CN205135795U (en) | 2015-11-23 | 2015-11-23 | High compression ratio piston engine's non - round gear change mechanism of bent axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1009607B (en) * | 2018-07-25 | 2019-09-30 | Παναγιωτης Γεωργιου Λαμπουρας | Variable w-shaped piston engine |
-
2015
- 2015-11-23 CN CN201520933243.0U patent/CN205135795U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1009607B (en) * | 2018-07-25 | 2019-09-30 | Παναγιωτης Γεωργιου Λαμπουρας | Variable w-shaped piston engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161123 |