CN104481690A - Combined rack linear reciprocating rotary exchange internal combustion engine driving device - Google Patents
Combined rack linear reciprocating rotary exchange internal combustion engine driving device Download PDFInfo
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- CN104481690A CN104481690A CN201410755834.3A CN201410755834A CN104481690A CN 104481690 A CN104481690 A CN 104481690A CN 201410755834 A CN201410755834 A CN 201410755834A CN 104481690 A CN104481690 A CN 104481690A
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Abstract
The invention belongs to a combined rack linear reciprocating rotary exchange internal combustion engine driving device. The device consists of an internal combustion engine box, a chain-shaped rack supporting frame, a chain-shaped rack, a gear block pushing shaft, a gear block pushing shaft sliding sleeve and a piston pushing rod, wherein the chain-shaped rack is provided with a corner semicircle and a linear motion rigid supporting corner, is shaped like a Chinese character 'tu' and is formed by connecting single gear blocks in series; the two sides of the internal combustion engine box are respectively communicated with a left piston cylinder body and a right piston cylinder body; a cylinder sleeve is arranged in the left piston cylinder body and a left piston is arranged in the cylinder sleeve; a cylinder sleeve is arranged in the right piston cylinder body and a right piston is arranged in the corresponding cylinder sleeve; the left piston and the right piston share the same piston pushing rod; a rack supporting frame, rack supporting wheels and two rack following shafts support the inner circumferential wall of the annular chain rack, and the chain rack is enabled to rotate on the rack supporting frame, the rack supporting wheels and the two rack following shafts; a pushing rod shaft is arranged on the chain rack; one end of the pushing rod shaft is glidingly matched in the pushing rod sliding sleeve; the chain rack is occluded to an upper power output gear and a lower power output gear which are positioned in an engine box. The chain rack structure substitutes a crank shaft structure, and has the advantages of linear motion, good power output, high thermal efficiency, fuel saving property, low pollution and good using effect.
Description
Technical field
The invention belongs to a kind of combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device.
Background technique
At present, the crankshaft connecting rod type structure of traditional combustion engine has produced century-old without substantial variation, its structure is that cylinder is built with piston, piston is connected with bent axle by wrist pin, connecting rod, piston is reciprocating in cylinder, promotes crank rotation by connecting rod, in order to inspiration live gas and combustion gas are provided with intake valve and exhaust valve, piston top deserves to be called dead point from crankshaft center farthest, and piston top claims lower dead centre the most nearby from crankshaft center.Motor or internal-combustion engine are divided into four-journey and two stroke type internal-combustion engines.In four piston strokes of four-stroke internal combustion engine, only have a stroke to be work done, its excess-three stroke is then the preparation stroke of work done.Thus, four-stroke internal combustion engine bent axle often revolves to take two turns and can only do work once.And stroke is not separately established in the air inlet of two stroke IC engine, exhaust, but air inlet, exhaust stroke are merged into scavenging stroke, carry out when piston arrives lower dead centre.Bent axle often circles just an expansion space stroke, and its power should equal 2 times of four-stroke internal combustion engine or internal-combustion engine theoretically.But, because of its ventilation not to the utmost with poor lubrication by internal combustion (IC) Engine Design of fading out.
But four-journey and two stroke type motors or internal-combustion engine all have following deficiency, the connecting rod variable angle be attached thereto must be caused large because bent axle circles, power decentralized is many, partly can only spread out of power; Cause side pressure of piston large, wearing and tearing are uneven, and gas leakage damages.Bent axle causes piston not uniform motion, makes cylinder interior divide energy to run off.Because bent axle is running continuously, and piston all can not only stop at upper and lower dead point place, for stopping fuel combustion time, needs premature ignition, causes portion of energy to make anti-merit, and the thermal efficiency is declined.Because bent axle promotes it and do 360 ° of circular movement under piston acting, and piston is straight line motion, thus when bent axle go to BBC 45 ° time, piston can not transmit useful work, can only in advance by a large amount of energy emission.Thus cause power and fuel loss, and befouling environment.
Summary of the invention
The object of the invention is to design a kind of combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device, replace crankshaft structure by combined type rack structure, there is Linear transmission, sufficient combustion, be convenient to the good advantage of two strokes designs, high, the fuel saving of efficiency, of low pollution and using effect.
For this reason, the present invention is made up of internal combustion cabinet, the chain pair of tooth block combination, tooth block transmission shaft, pushing shaft sliding sleeve, piston catch bar.Be provided with in internal combustion cabinet: the chain tooth bar be connected into by the single tooth block with corner semicircle and pin shaft hole and rack bracket, the middle part of rack bracket and the engine housing at two ends are provided with rack support wheel and two chain tooth bar servo axis, chain rack bracket and rack support wheel and two ringwise chain tooth bars of chain tooth bar servo axis support inner circle wall and chain tooth bar is rotated thereon, chain tooth bar is provided with push rod shaft, one end of push rod shaft is sliding to be fitted in push rod sliding sleeve, the occlusion of chain tooth bar is positioned at the upper power output gear of internal combustion cabinet and lower power output gear, on, lower power output gear by with interior internal-combustion engine casing be coupling upper, lower driven axle drives and is positioned at outside upper upper of internal-combustion engine casing, lower driven gear, on, lower driven gear is engaged with the driving gear be positioned between the two, driving gear drives driving shaft, the both sides of internal combustion cabinet communicate left piston cylinder body and right piston/cylinder respectively, be provided with cylinder sleeve in left piston cylinder body in it and be provided with left piston, be provided with cylinder sleeve in right piston/cylinder in it and be provided with right piston, left and right piston shares a piston push rod, the inner side surface of the correspondence of left and right piston is coupling respectively by the two ends of respective wrist pin and same piston push rod, and the middle part of piston push rod is provided with push rod sliding sleeve.
Or the both sides of internal combustion cabinet communicate left piston cylinder body and right piston/cylinder respectively, be provided with cylinder sleeve in left piston cylinder body in it and be provided with left piston, be provided with cylinder sleeve in right piston/cylinder in it and be provided with right piston, left, the inner side surface of the correspondence of right piston is coupling respectively by one end of respective wrist pin and respective piston push rod, the other end of respective piston push rod is connected with push rod shaft by bearing, chain rack bracket is provided with in internal combustion cabinet, the middle part of chain rack bracket and the internal-combustion engine casing at two ends are provided with chain rack support wheel and two chain tooth bar servo axis, rack bracket and chain rack support wheel and two ringwise chain tooth bars of chain tooth bar servo axis support inner circle wall and chain tooth bar is rotated thereon, chain tooth bar is provided with push rod shaft, the occlusion of chain tooth bar is positioned at the power output gear of internal combustion cabinet, power output gear outwards spreads out of power by the flywheel be coupling with internal-combustion engine casing.
One section is had at least for rectilinear path in the roundtrips of described chain tooth bar, and can required design straight length.The both sides of described internal combustion cabinet are respectively equipped with the left and right push-rod hole communicated in left piston cylinder body and right piston/cylinder.The upper and lower end of described engine case is provided with oil lubricating case.Cooling water tank is provided with outside described left and right piston/cylinder.The outboard end of described left and right piston/cylinder connects cylinder cap pair respectively by cylinder cap flange plate, and cylinder cap pair is provided with ignition mechanism and venting gas appliance.The periphery of described chain tooth bar is the chain tooth bar be engaged with power output gear, and its inner circumferential is plane, and chain tooth bar to be mutually connected in series through the tooth block corner hole on it by pivot pin by the single tooth block in convex shape with corner semicircle and to form.Shaft axis in described left and right piston/cylinder on the same axis.Described piston push rod is coupling by bearing and push rod shaft.Be rectilinear path with power output gear or the upper and lower power output gear section of occlusion in the roundtrips of described chain tooth bar.Said structure reaches object of the present invention.
The present invention's chain rack structure replaces crankshaft structure, with combined type rack linear reciprocation rotation forces chain tooth bar, the function of piston transmission is concentrated on chain rack linear movement travel section, without connecting rod angle, eliminate bent axle and circle the power loss caused, there is no angle component, piston Uniform Movement can be made, mechanical resistance is little, and power loss is few.Upper and lower dead point of the present invention corner is little, can constant volume detonation volume, makes detonation abundant.Piston without lateral pressure power of the present invention, good seal, fuel saving, weares and teares little, durable.Driving shaft of the present invention (i.e. bent axle effect) adopts d-axis, uses flywheel structure or clutch can make internal-combustion engine deactivation portion cylinder when light negative He, with fuel saving.The present invention is without connecting rod angle, and can realize outburst stroke and be longer than compression stroke, power and fuel utilization are abundant, and of low pollution environment, and, due to any Long travel that the present invention has required design, there are sufficient time of exchanging gas and lubricating condition.Can the two stroke IC engine of design ideal.The thermal efficiency should be more than 70% theoretically.The present invention has Linear transmission, Power output is good, the thermal efficiency is high, fuel saving, decreasing pollution and the good advantage of using effect.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the ex-ternal transmission structural representation of piston push rod of the present invention.
Fig. 4 is the inside and outside Transmitted chains tooth bar structural representation of piston push rod of the present invention.
Fig. 5 is chain rack-driving partial structurtes schematic diagram of the present invention.
Fig. 6 is the right side structure schematic diagram of Fig. 5.
Fig. 7 is lengthening straight line as required of the present invention and strengthens corner structure schematic diagram.
Fig. 8 is chain tooth bar partial structurtes schematic diagram of the present invention.
Fig. 9 is the partial structurtes schematic diagram that piston push rod of the present invention drives chain tooth bar.
Figure 10 is the structural representation of single tooth block of the present invention.
Figure 11 is chain tooth corner schematic diagram.
Figure 12 is simple principle structural representation of the present invention.
Specific embodiments
As shown in Figures 1 to 12, a kind of combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device, the chain tooth bar 15 combined by internal combustion cabinet 3, tooth block, piston push rod 10, chain tooth bar pushing shaft 11, pushing shaft sliding sleeve 9 formed.
The both sides of internal combustion cabinet communicate left piston cylinder body 35 and right piston/cylinder 5 respectively, can establish the left push-rod hole 21 of the left piston cylinder body that communicates and the right push-rod hole 211 of the right piston/cylinder that communicates in the both sides of internal combustion cabinet respectively.Be provided with cylinder sleeve in left piston cylinder body in it and be provided with left piston 13.Be provided with cylinder sleeve 6 in right piston/cylinder in it and be provided with right piston 34.Left and right piston shares a piston push rod 10.The inner side surface of the correspondence of left and right piston is coupling with the two ends of same piston push rod respectively by respective wrist pin 14, and the middle part of piston push rod is provided with push rod sliding sleeve 12.The upper and lower end of engine case establishes oil lubricating case, thinks that each part provides lubricant oil.Cooling water tank with tank shell is packaged in outside left and right piston/cylinder, for left and right piston/cylinder is lowered the temperature.
Be provided with chain rack bracket 25 in internal combustion cabinet, the middle part of chain rack bracket and the internal-combustion engine casing at two ends are provided with chain rack support wheel 24 and two chain tooth bar servo axis 22,23.Chain rack bracket and chain rack support wheel and two ringwise chain tooth bars 15 of chain tooth bar servo axis support inner circle wall and chain tooth bar is rotated thereon.
Chain tooth bar has a tooth block be provided with push rod shaft 11, one end of push rod shaft is sliding to be fitted in push rod shaft sliding sleeve.The occlusion of chain tooth bar is positioned at the upper power output gear 16 of internal combustion cabinet and lower power output gear 20.Upper and lower power output gear is driven by the upper driven axle 17 that is coupling with internal-combustion engine casing and lower driven axle 18 and is positioned at upper driven gear 26 outside internal-combustion engine casing and lower driven gear 28.Upper and lower driven gear is engaged with the driving gear 27 be positioned between the two, and driving gear drives driving shaft 19; Driving shaft flywheel driven 1 outwards spreads out of power.
Or the both sides of internal combustion cabinet communicate left piston cylinder body and right piston/cylinder respectively, be provided with cylinder sleeve in left piston cylinder body in it and be provided with left piston, be provided with cylinder sleeve in right piston/cylinder in it and be provided with right piston, left, the inner side surface of the correspondence of right piston is coupling respectively by one end of respective wrist pin and respective piston push rod, the other end of respective piston push rod is connected with push rod shaft by bearing, chain rack bracket is provided with in internal combustion cabinet, the middle part of chain rack bracket and the internal-combustion engine casing at two ends are provided with chain rack support wheel and two chain tooth bar servo axis, chain rack bracket and chain rack support wheel and two chain tooth bar servo axis support ringwise chain toothing bars inner circle wall and chain tooth bar is rotated thereon, chain tooth bar is provided with push rod shaft, the occlusion of chain tooth bar is positioned at the power output gear of internal combustion cabinet, power output gear drives by the pto＝power take-off be coupling with internal-combustion engine casing the outside outputting power of flywheel be positioned at outside internal-combustion engine casing.
One section is had at least for rectilinear path in the roundtrips of described chain tooth bar.And can lengthen on demand or shorten rectilinear path.
The both sides of described internal combustion cabinet are respectively equipped with the left and right push-rod hole communicated in left piston cylinder body and right piston/cylinder.The upper and lower end of described internal combustion cabinet is provided with oil lubricating case.Cooling water tank is provided with outside described left and right piston/cylinder.
The outboard end of described left and right piston/cylinder connects cylinder cap pair 7 respectively by cylinder cap flange plate 8, and cylinder cap pair is provided with igniting oil supplying device 32 and venting gas appliance 33.
The periphery of described chain tooth bar is the tooth bar be engaged with power output gear, its inner circumferential is plane, chain tooth bar by with corner semicircle 37, straightway rigidity strut angle 38, single tooth block 34 in convex shape, by tooth axle 29 through the tooth axis hole 31 on it mutually serial connection form.
Shaft axis in described left and right piston/cylinder on the same axis.
Described piston push rod is coupling by bearing 30 and push rod shaft 11.
Be rectilinear path with power output gear or the upper and lower power output gear section of occlusion in the roundtrips of described chain tooth bar.
As shown in figure 12, running principle of the present invention is: the present invention adopts the two stroke IC engine with scavenging pump, if when right piston completes compressed line to upper dead center oil-feeding points fire, right piston is by the expansion of combustion gas dead point (or deserving to be called dead point to lower dead centre) mobile and work done left from right dead point, right piston drives chain tooth bar counterclockwise movement by piston push rod, now chain tooth bar is in rectilinear path, and the occlusion of chain tooth bar is positioned at the lower power output gear 20 of internal combustion cabinet.Lower power output gear is driven by the lower driven axle 18 be coupling with engine housing and is positioned at the outside upper lower driven gear 28 of internal-combustion engine casing.Lower driven gear is engaged with driving gear 27, and driving gear drives driving shaft 19; Driving shaft is by flywheel 1 outwards outputting power.Simultaneously the piston push rod of the left push rod of connection of (on chain tooth bar) tooth block push rod shaft also drives left piston left movement in the same way with being connected on, when right piston, to run to straightway complete, its exhauxt valve opens during dentation chain pair beginning corner, combustion gas, left piston is then carry out compression stroke; Because waste gas head pressure reduces in right piston/cylinder, and piston slips over the inlet hole being located at cylinder bottom simultaneously, make the fresh air with pressure enter right cylinder and release the waste gas in right cylinder, air inlet is continued until that the right piston of toothed chain bending moves right and slips over inlet hole, till inlet hole is completely covered.And exhaust valve does not cut out, continue exhaust, until when right piston moves right to total kilometres 1/2, close exhaust valve thus proceed to compression stroke.Obviously, in the scavenging stroke when right piston is in left dead point, left piston is in the combustion phase at left dead point place.And both push rod shaft have walked around chain tooth bar bending part, be positioned at the rectilinear path termination of chain tooth bar lower end, and then outburst acting, promote piston to the right.Left piston is arranged with right piston.
Above-mentioned action goes round and begins again, and continues work done.Lower power output gear is arranged in geared sleeve 36, to facilitate lubrication.
Structure shown in structure and Figure 12 shown in Fig. 1 to Fig. 6, Fig. 9 unlike: be provided with two the chain tooth bars distributed side by side in span in internal combustion cabinet, at the two ends of two fixing push rod shaft of chain tooth bar correspondence, piston push rod is by being coupling in the middle part of bearing and push rod shaft.Effect makes operation more steady.All the other are identical, therefore are not repeated.
In a word, the present invention's chain rack structure replaces crankshaft structure, have straight line motion, sufficient combustion, Power output good, be convenient to that two strokes designs, the thermal efficiency are high, fuel saving, of low pollution and the good advantage of using effect.
Claims (10)
1. a combined type rack linear reciprocation rotary internal combustion engine device for interchanging.By internal combustion cabinet, chain rack bracket, and the chain tooth bar be concatenated into corner semicircle and with the single tooth block that straight line motion rigidity strut angle is convex, tooth block pushing shaft, tooth block pushing shaft sliding sleeve, piston push rod formed.It is characterized in that: the both sides of internal combustion cabinet communicate left piston cylinder body and right piston/cylinder respectively, be provided with cylinder sleeve in left piston cylinder body in it and be provided with left piston, be provided with cylinder sleeve in right piston/cylinder in it and be provided with right piston, left, right piston shares a piston push rod, left, the inner side surface of the correspondence of right piston is coupling respectively by the two ends of respective wrist pin and same piston push rod, the middle part of piston push rod is provided with push rod sliding sleeve, chain rack bracket is provided with in internal combustion cabinet, the middle part of chain rack bracket and the internal-combustion engine casing at two ends are provided with chain rack support wheel and two chain tooth bar servo axis, chain rack bracket and chain rack support wheel and two ringwise chain tooth bars of chain tooth bar servo axis support inner circle wall and chain tooth bar is rotated thereon, chain tooth bar is provided with push rod shaft, one end of push rod shaft is sliding to be fitted in push rod sliding sleeve, the occlusion of chain tooth bar is positioned at the upper power output gear of internal combustion cabinet and lower power output gear, on, lower power output gear by with internal-combustion engine casing be coupling upper, lower driven axle drives and is positioned at outside upper upper of internal-combustion engine casing, lower driven gear, on, lower driven gear is engaged with the driving gear be positioned between the two, driving gear drives transmission shaft outwards to transmit power:
Or the both sides of internal combustion cabinet communicate left piston cylinder body and right piston/cylinder respectively, be provided with cylinder sleeve in left piston cylinder body in it and be provided with left piston, be provided with cylinder sleeve in right piston/cylinder in it and be provided with right piston, left, the inner side surface of the correspondence of right piston is coupling respectively by one end of respective wrist pin and respective piston push rod, the other end of respective piston push rod is connected with push rod shaft by bearing, chain rack bracket is provided with in internal combustion cabinet, the middle part of chain rack bracket and the internal-combustion engine casing at two ends are provided with chain rack support wheel and two chain tooth bar servo axis, chain rack bracket and chain rack support wheel and two ringwise chain tooth bars of chain tooth bar servo axis support inner circle wall and chain tooth bar is rotated thereon, chain tooth bar is provided with push rod shaft, the occlusion of chain tooth bar is positioned at the power output gear of internal combustion cabinet, power output gear is driven by the pto＝power take-off be coupling with internal-combustion engine casing and is positioned at the outside outputting power of the outside upper flywheel of internal-combustion engine casing.
2., by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: the described single tooth block that may be combined with into chain tooth bar is provided with convex-concave corner semicircle.
3., by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: the described single tooth block that may be combined with into chain tooth bar is provided with craspedodrome section tooth bar rigidity strut angle.
4., by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: the chain tooth bar craspedodrome section after described combination is rigidity straight line.
5., by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: the chain tooth bar after described combination, respectively there are 180 ° of angles of revolution at its two ends.
6. by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: described chain tooth bar can as desired, by plus-minus single tooth number of blocks design piston stroke.
7. by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: the periphery of described chain tooth bar is the tooth bar be engaged with power output gear, its inner circumferential is plane, and chain tooth bar to be mutually connected in series through the tooth axis hole on it by tooth axle by the single tooth block in convex shape and to form.
8., by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: the shaft axis in described left and right piston/cylinder on the same axis.
9., by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device according to claim 1, it is characterized in that: described piston push rod is coupling by bearing and push rod shaft.
10. by combined type rack linear reciprocation rotation interchangeable internal-combustion engine transmission device described in claim 1 or 2, it is characterized in that: be rectilinear path with power output gear or the upper and lower power output gear section of occlusion in the roundtrips of described chain tooth bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755834.3A CN104481690A (en) | 2014-01-21 | 2014-12-10 | Combined rack linear reciprocating rotary exchange internal combustion engine driving device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2014100294999 | 2014-01-21 | ||
| CN201410029499 | 2014-01-21 | ||
| CN201410755834.3A CN104481690A (en) | 2014-01-21 | 2014-12-10 | Combined rack linear reciprocating rotary exchange internal combustion engine driving device |
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| CN104481690A true CN104481690A (en) | 2015-04-01 |
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| CN201410755834.3A Pending CN104481690A (en) | 2014-01-21 | 2014-12-10 | Combined rack linear reciprocating rotary exchange internal combustion engine driving device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837540A (en) * | 2015-07-10 | 2017-06-13 | 张琴 | It is suitable to increase the internal combustion engine of engine power to weight ratio |
| CN110118250A (en) * | 2018-02-05 | 2019-08-13 | 安里千 | A kind of switching mechanism of chain-crankshaft linkage |
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| DE3019288A1 (en) * | 1980-05-21 | 1981-11-26 | Primo 7760 Radolfzell Fantinel | IC engine with linked pistons - uses two coaxially stepped gear wheels rotating in unison and alternately engaging opposite sides of rack |
| US4907548A (en) * | 1987-03-25 | 1990-03-13 | Sangchin Lee | Pinion gear assembly for translating reciprocating movements of the pistons in the cylinders of an internal combustion engine into the rotating movement of a shaft |
| RU2200239C2 (en) * | 2001-04-05 | 2003-03-10 | Смердов Геннадий Георгиевич | Internal combustion engine |
| CN101806241A (en) * | 2010-02-20 | 2010-08-18 | 姜明 | Piston direct-drive supercharged engine and design method thereof |
| CN204827662U (en) * | 2014-12-10 | 2015-12-02 | 郭红元 | Modular reciprocal rotatory internal -combustion engine transmission that exchanges of rack straight line |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019288A1 (en) * | 1980-05-21 | 1981-11-26 | Primo 7760 Radolfzell Fantinel | IC engine with linked pistons - uses two coaxially stepped gear wheels rotating in unison and alternately engaging opposite sides of rack |
| US4907548A (en) * | 1987-03-25 | 1990-03-13 | Sangchin Lee | Pinion gear assembly for translating reciprocating movements of the pistons in the cylinders of an internal combustion engine into the rotating movement of a shaft |
| RU2200239C2 (en) * | 2001-04-05 | 2003-03-10 | Смердов Геннадий Георгиевич | Internal combustion engine |
| CN101806241A (en) * | 2010-02-20 | 2010-08-18 | 姜明 | Piston direct-drive supercharged engine and design method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837540A (en) * | 2015-07-10 | 2017-06-13 | 张琴 | It is suitable to increase the internal combustion engine of engine power to weight ratio |
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| CN110118250A (en) * | 2018-02-05 | 2019-08-13 | 安里千 | A kind of switching mechanism of chain-crankshaft linkage |
| CN110118250B (en) * | 2018-02-05 | 2023-04-14 | 安里千 | Chain-crankshaft linkage conversion mechanism |
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Application publication date: 20150401 |