CN206904166U

CN206904166U - A kind of buncher of the pure engaged transmission of pawl ratchet

Info

Publication number: CN206904166U
Application number: CN201720517855.0U
Authority: CN
Inventors: 史建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-11
Filing date: 2017-05-11
Publication date: 2018-01-19
Anticipated expiration: 2027-05-11

Abstract

The utility model discloses a kind of buncher of the pure engaged transmission of pawl ratchet, including the primary variable rotor being correspondingly arranged and driven speed-varying rotor, it is radially uniform on the inwall of primary variable rotor and driven speed-varying rotor to be provided with ratchet radially, roller gear part is housed between primary variable rotor and driven speed-varying rotor, respectively there is a truncated cone-shaped roller at roller gear part both ends, each truncated cone-shaped roller is respectively made up of more than at least one set small round platform, the same number of ratchet is each uniformly provided with every group of small round platform, but the ratchet on the small round platform of each group staggers identical angle successively again, the ratchet distinguishes the ratchet engagement on corresponding primary variable rotor and driven speed-varying rotor inwall, roller gear part is provided with roller axle sleeve.The buncher has big small volume, in light weight, simple in construction, easy to manufacture, reliable operation, transmission efficiency, transmission moment of torsion, shock resistance, bears to overload the advantages of big.

Description

A kind of buncher of the pure engaged transmission of pawl ratchet

Technical field

The utility model belongs to transmission field, more particularly to a kind of buncher of the pure engaged transmission of pawl ratchet.

Background technology

Buncher, abbreviation CVt, it is widely used in mechanical field.Realize that the transmission of variable speed mainly divides For liquid, electric power, mechanical three kinds of modes.Liquid and power technology are complicated and involve great expense.Mechanical CVt points are frictional and pulsation Formula, pulsating CVt items contrast in technical performance is low, so frictional CVt just turns into the helpless choosing of current auto continuously variable transmission Select.

Global engineer studies the existing centuries of CVt, up to the present, exactly, is not completely successful. Reason is that they almost employ friction mode entirely, has the danger that friction just has skidding, its friction loss, which completely cancels out, starts Machine is in the obtained interests of best efficiency point work.In recent years as a result of Steel Belt Transmission and some other state-of-the-art technology, Although being greatly improved in this respect, the peak torque that can be transmitted is 350Nm, still too small, and is used as core The steel band production difficulty of heart technology is high, and also only several major companies can produce in the whole world, and high-tech exactly so makes But very enervated during, damage can not repair, and can only change assembly, so that steel band CVt only accounts for automotive transmission 2% Share.

Japan also develops more than half towed CVt of ball disk, and principle is that the roller point for relying on several tons of pressurization contacts frictional drive, The peak torque that can be transmitted finally could not also succeed up to 380Nm, but because of cost and reliability reasons.

CVt as the optimal speed changer of automobile, itself can fuel-economizing 20%, in order to pursue world's advanced technology, from " nine The too high technology barriers of automatic transmission are skipped in five " periods, China, directly using CVt as national key scientific and technological project, so And past 20 years, it there are no big progress.At the same time, it is among the people to have also been invented various forms of CVt, but in itself simultaneously Do not have it is landmark surmount, finally also all end up with nothing definite, wherein having an oscillating tooth CVt than more typical, but pass through the examination of 10 years Test, effect is also undesirable.

The technical staff of 100 Duo Nianlai various countries does not loosen the research to engaging variable transmission always yet in fact, this It is that there is efficiency high, reliable operation because of engaged transmission, transmit the advantages of moment of torsion is big, but realizes variable speed, it is easier said than done. So the engagement CVt of most idealized perfect had been considered as once a proposition without solution.

Utility model content

The utility model is in order to solve the above-mentioned technical problem, there is provided a kind of pawl ratchet with overdrive clutch function is pure The buncher of engaged transmission, the continuously variable transmission machine efficiency high, reliable operation, transmission moment of torsion are big.

The utility model is to be achieved through the following technical solutions：

A kind of buncher of the pure engaged transmission of pawl ratchet, including roller gear part, roller axle sleeve and correspondingly Radial radiation shape on the inwall of the primary variable rotor and driven speed-varying rotor of setting, primary variable rotor and driven speed-varying rotor Ground is provided with ratchet, and roller gear part, roller gear part are provided between primary variable rotor and driven speed-varying rotor Respectively there is a truncated cone-shaped roller at both ends, and each truncated cone-shaped roller is respectively made up of more than at least one set small round platform, on every group of small round platform The same number of ratchet is each equipped with, it is equidistant evenly distributed with the ratchet organized on small round platform, it is each on same truncated cone-shaped roller Ratchet and the identical angle that staggers successively on the small round platform of group, the ratchet distinguish corresponding primary variable rotor and driven change Ratchet engagement in fast rotor inner wall, roller axle sleeve is provided with roller gear part.

It is radially uniform on described primary variable rotor and the inwall of driven speed-varying rotor to be provided with ratchet radially.

Described primary variable rotor is active hemisphere, and driven speed-varying rotor is driven hemisphere, and roller gear part is Be provided with ratchet on the inwall of mediate roller, active hemisphere and driven hemisphere radial radiation shape, active hemisphere and driven hemisphere it Between mediate roller is installed, respectively there is a truncated cone-shaped roller at mediate roller both ends, and two truncated cone-shaped rollers are coaxial, the rolling of each truncated cone-shaped Wheel is respectively made up of more than at least one set small round platform, and every group of small round platform is enclosed on the axle of mediate roller in a manner of spline, every group of roundlet Respective uniform pitch is provided with the same number of ratchet on platform, equidistant evenly distributed with the ratchet organized on small round platform, but each group is small Ratchet and the identical angle that staggers successively, the ratchet on round platform are nibbled with the ratchet on active hemisphere and driven hemisphere inwall respectively Close, roller axle sleeve is provided with mediate roller, roller axle sleeve guiding mediate roller is around the center of circle of active hemisphere and driven hemisphere Rotation, so as to the gear ratio between stepless change active hemisphere and driven hemisphere.

Described primary variable rotor is bored for main rotating ring, and described driven speed-varying rotor is bored for driven torus, described roller Gear part includes mediate roller and slide rail, and active ring cone is provided with ratchet with radial radiation shape on the inwall of driven torus cone, Active ring is bored is provided with mediate roller between driven torus cone, and respectively there are a truncated cone-shaped roller, two truncated cone-shapeds in mediate roller both ends Roller is coaxial, and each truncated cone-shaped roller is respectively made up of more than at least one set small round platform, during every group of small round platform is enclosed in a manner of spline Between roller axle on, respective uniform pitch is provided with the same number of ratchet on every group of small round platform, and the ratchet is bored with active ring respectively With the ratchet engagement on driven torus conical inner surface, the global displacement that guiding mediate roller is engaged with slide rail is provided with mediate roller Roller axle sleeve, roller axle sleeve guiding mediate roller slided on slide rail, so as to stepless change active ring cone and driven torus bore it Between gear ratio.

Described slide rail is located at the centre of master and slave rotating ring cone, the axle clamp angle of slide rail and mediate roller be equal to active ring bore or Driven torus bores the half of taper, and the shape of driven torus cone is identical with active ring cone.

Master and slave rotating ring cone and the axle of mediate roller three are parallel to each other.

The taper of the roller at described mediate roller both ends is equal with the taper that master and slave rotating ring is bored, mediate roller both ends Roller bores phase inscribe with master and slave rotating ring respectively.Each determination position of described mediate roller, no matter mediate roller both ends Ratchet actual participation transmission on roller on any group of small round platform, the gear ratio between master and slave rotating ring is bored all is certain value, because This, master and slave rotating ring cone not only can reliably realize variable speed, and it is very steady to operate meeting.

Described active ring cone and driven torus cone includes teeth groove and transverse tooth thickness, is uniformly opened up on active ring cone and driven torus cone There are teeth groove and transverse tooth thickness.

Described each truncated cone-shaped roller is respectively made up of 2~6 groups of small round platforms.

Described active ring cone and driven torus cone includes evenly distributed ratchet.

Compared with prior art, the utility model has technique effect beneficial below：

The buncher of the pure engaged transmission of pawl ratchet provided by the utility model be designed as invariable power, zero pressurization, Pure engaged transmission, there is small volume, in light weight, simple in construction, easy to manufacture, reliable operation, transmission efficiency, transmission moment of torsion Greatly, shock resistance, bear to overload the advantages of big, the application of conglomerate can be met, make it possible engagement variable transmission.

Brief description of the drawings

Fig. 1 is the buncher of the pawl ratchet pure engaged transmission provided by the utility model with overdrive clutch function Structural representation one；

Fig. 2 is the buncher of the pawl ratchet pure engaged transmission provided by the utility model with overdrive clutch function Structural representation two；

Fig. 3 is mediate roller structural representation provided by the utility model；

Fig. 4 is the axial view of active ring provided by the utility model cone or active hemisphere inwall；

Fig. 5 is ratchet and master and slave rotating ring cone or driving and driven hemisphere top on a certain group of small round platform of mediate roller top The local specific situation schematic diagram that is mutually driven of ratchet；

Fig. 6 is the axial partial view of mediate roller upper roller, and each lattice represents a ratchet.

Wherein, 1 is that main rotating ring is bored；2 be mediate roller；3 be roller axle sleeve；4 be slide rail；5 be that driven torus is bored；6 be teeth groove； 7 be transverse tooth thickness；8 be active hemisphere；9 be driven hemisphere.

Embodiment

The utility model is described in further detail with reference to specific embodiment, described is to the utility model Explanation rather than restriction.

Referring to Fig. 1 to Fig. 6, a kind of buncher of the pure engaged transmission of pawl ratchet, including roller gear part, rolling Sub- axle sleeve 3 and the primary variable rotor that is correspondingly arranged and driven speed-varying rotor, primary variable rotor and driven speed-varying rotor it is interior It is radially uniform on wall to be provided with ratchet radially, roller gear is installed between primary variable rotor and driven speed-varying rotor Respectively there is a truncated cone-shaped roller at part, roller gear part both ends, and each truncated cone-shaped roller is respectively made up of 3 groups of small round platforms, every group The same number of ratchet is each equipped with small round platform, it is equidistant evenly distributed with the ratchet organized on small round platform, but each group roundlet Ratchet and the identical angle that staggers successively on platform, the ratchet distinguish corresponding primary variable rotor and driven speed-varying rotor Ratchet engagement on inwall, roller axle sleeve 3 is provided with roller gear part.

The buncher of the pure engaged transmission of pawl ratchet provided by the utility model, and in particular to there is overdrive clutch work( The pure intermeshing driven stepless gear of pawl ratchet of energy, the mentality of designing of the buncher are：Internal messing is tooth-like unidirectional super The outer ratchet of more clutch infinitely increases, and outer ratchet just forms a toothed bullet, and the base radius where ratchet is protected Hold constant, but increase as far as possible and reasonably the number of ratchet on basic circle, so that more ratchets have an opportunity to participate in transmission.It is mobile Basic circle is simultaneously kept and this taper body phase inscribe, then the rotating speed of basic circle is just infinitely changed by this bullet, and taper Body still has mono-directional overrun clutch function.

Embodiment 1, referring to Fig. 1, described primary variable rotor is active hemisphere 8, and driven speed-varying rotor is driven hemisphere 9, roller gear part is mediate roller 2, radially uniform on the inwall of active hemisphere 8 and driven hemisphere 9 to be provided with radially Ratchet, mediate roller 2 being installed between active hemisphere 8 and driven hemisphere 9, respectively there is a truncated cone-shaped roller at the both ends of mediate roller 2, Each truncated cone-shaped roller is respectively made up of 3 groups of small round platforms, and the small round platform of each group is enclosed in a manner of spline on the axle of mediate roller 2, every group Uniform pitch is provided with the same number of ratchet on small round platform, and the ratchet on same roller on the small round platform of each group staggers identical successively Angle, the ratchet respectively with the ratchet engagement on active hemisphere 8 and the inwall of driven hemisphere 9.Roller Shaft is provided with mediate roller 2 Set 3, roller axle sleeve 3 guides mediate roller 2 to be rotated around the center of circle of active hemisphere 8 and driven hemisphere 9, so as to change active hemisphere Transmission gear shift ratio between 8 and driven hemisphere 9.The axle of mediate roller 2 can only rotate in roller axle sleeve 3, and can not relative rolling Sub- axle sleeve 3 moves axially.

Embodiment 2, it is that main rotating ring bores 1 referring to the primary variable rotor described in Fig. 2 to Fig. 6, described driven speed-varying rotor For driven torus cone 5, described roller gear part includes mediate roller 2 and slide rail 4, roller axle sleeve is set in mediate roller 2 3, roller axle sleeve 3 guides mediate roller 2 is overall to be slided on slide rail 4.On the inwall of active ring cone 1 and driven torus cone 5 radially It is even to be provided with ratchet radially, mediate roller 2 is installed between active ring cone 1 and driven torus cone 5, the both ends of mediate roller 2 respectively have One truncated cone-shaped roller, two truncated cone-shaped rollers are coaxial, and each truncated cone-shaped roller is respectively made up of 3 groups of small round platforms, the small round platform of each group with Spline mode is enclosed on the axle of mediate roller 2, and respective uniform pitch is provided with the same number of ratchet, but each group on every group of small round platform Ratchet and the identical angle that staggers successively on small round platform, the ratchet bore the spine on 5 inwalls with active ring cone 1 and driven torus respectively Tooth engages.When roller axle sleeve 3 guides mediate roller 2 being slided on slide rail 4, between active ring cone 1 and driven torus cone 5 Realize variable transmission.

Wherein, described slide rail 4 is located at the centre that master and slave rotating ring bores 1,5, the axle clamp angle of slide rail 4 and mediate roller 2 etc. The half of 5 tapers is bored in active ring cone 1 or driven torus, the shape of driven torus cone 5 is identical with active ring cone 1.Master and slave rotating ring cone 1, 5 and the axle of the three of mediate roller 2 be parallel to each other.The taper of the roller at the described both ends of mediate roller 2 and master and slave rotating ring cone 1, 5 taper is equal, and the roller at the both ends of mediate roller 2 bores 1,5 phase inscribes with master and slave rotating ring respectively.Each of mediate roller 2 is true Positioning is put, and no matter the ratchet actual participation on any group of small round platform in mediate roller 2 is driven, between master and slave rotating ring cone 1,5 Gear ratio be all certain value, therefore, the utility model not only can reliably realize variable speed, and operate can be very steady.

Described active ring cone 1 and driven torus cone 5 includes teeth groove 6 and transverse tooth thickness 7, and active ring cone 1 and driven torus bore footpath on 5 Teeth groove 6 and transverse tooth thickness 7 are offered to uniformly auxiliary with penetrating shape.Teeth groove 6 and transverse tooth thickness 7 form ratchet altogether.

Further, two ends of the ratchet are respectively fitted with ratchet spring T, ratchet and ratchet driving contact area Design in the arc-shaped, ratchet is vertical bar shaped.

It is radially uniform on the inwall of active ring cone 1 and driven torus cone 5 to be provided with teeth groove radially referring to Fig. 2 to Fig. 6, Referred to as ratchet.Respectively there is a truncated cone-shaped roller at the both ends of mediate roller 2, and two truncated cone-shaped rollers are coaxial, each truncated cone-shaped roller Respectively it is made up of 3 groups of small round platforms, they are enclosed in a manner of spline on the axle of mediate roller 2.There is number identical on every group of small round platform Ratchet, it is equidistant evenly distributed with the ratchet organized on small round platform, but the ratchet on same roller on the small round platform of each group is again successively The identical that staggers angle, as shown in Figure 6.All are identical for two rollers in mediate roller 2, even the inclination of ratchet Direction is all identical, for no other reason than that the two is located at the both ends of mediate roller 2 respectively, just seems that the incline direction of ratchet is opposite.Roller Axle sleeve 3 both fixes mediate roller 2, and the global displacement of guiding mediate roller 2 is also engaged with slide rail 4.The axle of mediate roller 2 is only It can be rotated in roller axle sleeve 3, and be unable to opposing rollers axle sleeve 3 and axially move.Slide rail 4 is in master and slave rotating ring and bores 1 and 5 The axle clamp angle of centre, slide rail 4 and mediate roller 2 is equal to the half that active ring bores 1 taper, and slide rail 4 plays guiding mediate roller 2 Effect.The shape of driven torus cone 5 is identical with active ring cone 1.Similarly, because master and slave rotating ring cone 1 and 5 is relative, so two The tooth form of person can also seem opposite.The axle three of master and slave rotating ring cone 1 and 5 and mediate roller 2 is parallel to each other, 2 liang of mediate roller The taper that the roller at end bores 1 and 5 threes with master and slave rotating ring is all equal.The roller at the both ends of mediate roller 2 respectively with master and slave rotating ring 1 and 5 phase inscribes are bored, are designed to inscribe, in order to makes as far as possible more ratchets and ratchet while is ready to participate in transmission.Relatively 1 and 5 is bored in master and slave rotating ring, mediate roller 2 is both driven member, and driving link, when roller axle sleeve 3 slides in slide rail 4, The roller at the both ends of mediate roller 2 bores 1 and 5 phase inscribes with master and slave rotating ring all the time, and mutual due to upper ratchet and ratchet each other Transmission, driven torus cone 5 can be to realize variable speed.From it is described above through analysis it was found from：Each determination position of mediate roller 2 Put, no matter the ratchet actual participation on mediate roller 2 any of the above, one group of small round platform is driven, between master and slave rotating ring cone 1 and 5 Gear ratio all for certain value therefore, the design not only can reliably realize variable speed, and operate can be very steady.Compare In the towed CVt of hemisphere the ring disk, that are circumscribed frictional drive, and coaxial opposite, this is inscribe engaged transmission, and master and slave moving axis is parallel, And turn to identical.

In Fig. 4,6 it is teeth groove, 7 is transverse tooth thickness, space width infinitely becomes with radius with transverse tooth thickness and diminished greatly.

In Fig. 5, T is ratchet spring, is respectively assembled at two ends of ratchet, and each ratchet assembles 2, it is ensured that low speed Very high reliability during rotation.During the buncher work of the pure engaged transmission of pawl ratchet, ratchet is also by itself centrifugal force Effect is flared out, and ratchet spring T is not only flared out ratchet, also limits the maximum pendulum angle of ratchet jointly with pawl base, with Avoid producing the possibility of " mounting board " with ratchet during operating, because ratchet has certain amplitude of fluctuation, thus mutually passed with ratchet When dynamic, the ratchet for being actually not engaged in transmission is depressed at the top of ratchet, is ensureing not occur mutually with the ratchet organized on small round platform Spacing is small as much as possible on the premise of " interference ".The design of the driving contact area of ratchet and ratchet is in the arc-shaped, it is therefore an objective to realizes face Contact, so as to improve bearing capacity.In addition, ratchet is changed to vertical bar shaped by traditional Curved, purpose is strong also for carrying is improved Degree, these measures, which additionally aid, reduces ratchet size, and then centrifugal force size caused by itself compares reason when the ratchet is worked Think.

Fig. 6 is the axial partial view of Fig. 3 mediate roller upper rollers, and each lattice represents a ratchet in figure.

Design of the present utility model all surrounds a center：Increase the arranging density of ratchet and ratchet as possible, so as to avoid Mutually transmission when smooth phenomenon occurs, this be improve the design technical indicator key, these measures be summed up for：

First, ratchet takes multigroup superposition mode, and to increase density, and science arranges.

2nd, the size of each driving member is suitably increased, to arrange more ratchets or ratchet on corresponding component.

3rd, rationally reduce the size of ratchet and ratchet, be just favorably improved the arranging density of ratchet and ratchet.

4th, each driving member is preferably driven with internal-cutting way, to have as far as possible more ratchets and ratchet while to be ready to participate in Transmission.

5th, the radius of circle of each driving member should try one's best close, more so as to contribute to so that more arc length approximations are tangent Ratchet and ratchet are ready to participate in transmission simultaneously.

6th, the tilting action amplitude of oscillation of ratchet is rationally utilized, the ratchet number of transmission is participated in increase.

7th, similar in appearance to helical gear, also the continuity of transmission can be improved using oblique ratchet, oblique ratchet.

Ratchet is equidistantly evenly distributed with ratchet, first assumes that ratchet can not be swung, then the transmission of ratchet and ratchet There are two kinds of situations：First, when ratchet spacing is all ratchet average headway integral multiples of same roller, transmission is no smooth, this Kind proportionate relationship has multiple.2nd, when ratchet spacing and ratchet spacing are not integral multiple, if there are 40 spine on every group of small round platform Pawl, 3 groups share 120, then the ratchet average headway on an overall roller is 3 °, it is further assumed that has 5 ratchets while has Transmission condition is participated in, depth analysis is understood：During transmission, 5 ratchets also have the function that averagely to split ratchet spacing, and this is just meaned , 5 ratchets must have one of ratchet and ratchet intermeshing about 60 ° of arc length of transmission, so slip per smooth 0.6 ° It is averaged equal to 1%, then with zero slip of the first situation, slip 0.5%, because overall CVt uses the stepless change of two-stage Speed transmission, so overall slip is about 1%, smooth smaller, the transmission impact of ratchet and ratchet is just smaller, and transmission is also more flat Surely.

Above to assume that ratchet can not swing calculated transmission slippage rate score in theory, have one because ratchet is actual Fixed pendulum width, during transmission, the roller residing for ratchet is inscribed within the bullet residing for ratchet.Tangent both sides, the pivot angle of one side ratchet Incrementally increase, the pivot angle of another side ratchet progressively reduces, therefore will also result in, corresponding tangent both sides, the ratchet on one side and spine Tooth is gradually disengaged, and another side, ratchet gradually engage with ratchet.Extra slow down be present in tangent both sides, the circular motion of ratchet And it is extra accelerate, this just ingenious smooth factor that compensate for when ratchet is driven with ratchet.So that the spine on tangent both sides Pawl and the continuous relay of ratchet, transmission is exactly continuous, is completely absent smooth.Thus the transmission of ratchet and ratchet links up soft very much It is suitable.Increase gets out participate in the ratchet and ratchet number of transmission simultaneously as possible, preliminary to be laid the foundation for continuous transmission, then rationally profit Fall smooth influence with the amplitude of oscillation fine setting of ratchet, this is that transmission is continuous crucial, so as to finally would look like impossible continuous transmission Become true, the utility model CVt transmission efficiency may be up to 97%

Ratchet is driven in a manner of " ejection " ratchet, and gear is driven with taking turns between cog " dialling folding " power, thus is being passed When passing same torque, ratchet size be can be made smaller.Assuming that a ratchet weighs 3 grams, the radius of gyration of ratchet is in embodiment 0.07 meter, ratchet rotating speed is 6000 revs/min, then the centrifugal force at the top of ratchet is about 3 kgfs, and this numerical value is highly desirable.

Ratchet transmission has similar place to Oscillating Tooth Gear Reducer, that is, ratchet can be movable with oscillating tooth, but the two is driven Force way is again different, and first, ratchet because monomer intensity is high, is driven in a manner of independent " ejection " ratchet, oscillating tooth Monomer is very weak, can only be driven with colony " dialling folding " power.Secondly, the recovery of ratchet pivot angle have enough time and acceleration so as to High rotating speed is adapted to, but the recovery of oscillating tooth position is rubbed between by colony and stress time length is influenceed, can not high rotating speed.Most Afterwards, ratchet swing stress is soft, can be distributed on circumference with ensemble average, and the impact of oscillating tooth stress is big, can not ensemble average on circumference Distribution.

For the utility model compared with traditional steel band CVt, it is engaged transmission to change frictional drive first.Secondly, the utility model There is no unmanageable parts.Finally, the utility model speed governing is simple, and without extra power consumption.

The utility model CVt and pulsating CVt has overdrive clutch function, and pulsating CVt produces due to moving back and forth Very big vibration, and be driven discontinuously, the utility model CVt is driven continuous and stable without impact, and all technical is higher than pulsation Formula CVt is a lot.

All speed changers of current automobile do not possess overdrive clutch function, in order to maintain high vehicle speeds, engine High rotating speed must be accordingly exported, otherwise, the slow-speed of revolution of engine can produce braking action to automobile, so as to waste fuel oil, and it is sharp With CVt of the present utility model overdrive clutch function, automobile can make full use of idling, deceleration, have in itself plus CVt Energy-saving function, total rate of economizing gasoline is more than 40%.

The utility model is not limited in embodiment shape used by each driving member, and can be stepless including all radiuses The ratchet and ratchet of change are by changing driving contact area and caused variable transmission, therefore, each driving member similar structures Shape and combination can be many, can not possibly enumerate herein.

The buncher of the pure engaged transmission of the utility model pawl ratchet is designed as invariable power, zero pressurization, pure engagement Transmission, there is small volume, in light weight, simple in construction, easy to manufacture, reliable operation, transmission efficiency, transmit that moment of torsion is big, anti-impact Hit, bear to overload the advantages of big, the application of conglomerate can be met, make it possible engagement variable transmission.

The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.This The technical staff of industry is retouched in above-described embodiment and specification it should be appreciated that the utility model is not restricted to the described embodiments That states simply illustrates principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model Various changes and modifications are also had, these changes and improvements are both fallen within claimed the scope of the utility model.This practicality is new Scope is claimed by appended claims and its equivalent thereof in type.

Claims

1. a kind of buncher of the pure engaged transmission of pawl ratchet, it is characterised in that including roller gear part, Roller Shaft Cover the inwall of (3) and the primary variable rotor being correspondingly arranged and driven speed-varying rotor, primary variable rotor and driven speed-varying rotor It is provided with ratchet upper radial radiation shape, roller gear part is installed between primary variable rotor and driven speed-varying rotor, rolls Respectively there is a truncated cone-shaped roller at sub- gear part both ends, and each truncated cone-shaped roller is respectively made up of more than at least one set small round platform, The same number of ratchet is each equipped with every group of small round platform, same circle equidistant evenly distributed with the ratchet organized on small round platform Ratchet and the identical angle that staggers successively on platform shape roller on the small round platform of each group, the ratchet distinguish corresponding primary variable Ratchet engagement on rotor and driven speed-varying rotor inwall, roller axle sleeve (3) is provided with roller gear part.

2. the buncher of the pure engaged transmission of pawl ratchet according to claim 1, it is characterised in that described active It is radially uniform on the inwall of speed-varying rotor and driven speed-varying rotor to be provided with ratchet radially.

3. the buncher of the pure engaged transmission of pawl ratchet according to claim 1 or 2, it is characterised in that described Primary variable rotor is active hemisphere (8), and driven speed-varying rotor is driven hemisphere (9), and roller gear part is mediate roller (2) ratchet, active hemisphere (8) and driven half, are provided with the inwall of active hemisphere (8) and driven hemisphere (9) radial radiation shape Mediate roller (2) is installed, respectively there is a truncated cone-shaped roller at mediate roller (2) both ends, and two truncated cone-shaped rollers are total between ball (9) Axle, each truncated cone-shaped roller are respectively made up of more than at least one set small round platform, and every group of small round platform is enclosed on mediate roller in a manner of spline (2) on axle, respective uniform pitch is provided with the same number of ratchet on every group of small round platform, the ratchet respectively with active hemisphere (8) With the ratchet engagement on driven hemisphere (9) inwall, roller axle sleeve (3), roller axle sleeve (3) guiding are provided with mediate roller (2) Mediate roller (2) rotates around the center of circle of active hemisphere (8) and driven hemisphere (9), thus stepless change active hemisphere (8) and from Gear ratio between dynamic hemisphere (9).

4. the buncher of the pure engaged transmission of pawl ratchet according to claim 1 or 2, it is characterised in that described Primary variable rotor is that main rotating ring bores (1), and described driven speed-varying rotor is that driven torus bores (5), described roller gear Part includes mediate roller (2) and slide rail (4), and active ring cone (1) and driven torus are bored and be provided with spine radial radiation shape on the inwall of (5) Tooth, mediate roller (2) is installed between active ring cone (1) and driven torus cone (5), respectively there is a round platform at mediate roller (2) both ends Shape roller, two truncated cone-shaped rollers are coaxial, and each truncated cone-shaped roller is respectively made up of more than at least one set small round platform, every group of small round platform with Spline mode is enclosed on the axle of mediate roller (2), and respective uniform pitch is provided with the same number of ratchet, the spine on every group of small round platform Pawl bores the ratchet engagement on (5) inwall with active ring cone (1) and driven torus respectively, is provided with and slide rail (4) in mediate roller (2) The roller axle sleeve (3) of the global displacement of guiding mediate roller (2) is engaged, roller axle sleeve (3) guiding mediate roller (2) is in slide rail (4) slided on, so as to the gear ratio between stepless change active ring cone (1) and driven torus cone (5).

5. the buncher of the pure engaged transmission of pawl ratchet according to claim 4, it is characterised in that described slide rail (4) positioned at the centre of master and slave rotating ring cone (1,5), the axle clamp angle of slide rail (4) and mediate roller (2) be equal to active ring cone (1) or from Rotating ring bores the half of (5) taper, and the shape of driven torus cone (5) is identical with active ring cone (1).

6. the buncher of the pure engaged transmission of pawl ratchet according to claim 4, it is characterised in that master and slave rotating ring Cone (1,5) and the axle of mediate roller (2) three are parallel to each other.

7. the buncher of the pure engaged transmission of pawl ratchet according to claim 4, it is characterised in that described centre The taper that the taper of the roller at roller (2) both ends bores (1,5) with master and slave rotating ring is equal, the roller difference at mediate roller (2) both ends (1,5) phase inscribe is bored with master and slave rotating ring.

8. the buncher of the pure engaged transmission of pawl ratchet according to claim 4, it is characterised in that described active Ring bores (1) and driven torus cone (5) includes teeth groove (6) and transverse tooth thickness (7), is uniformly opened up on active ring cone (1) and driven torus cone (5) There are teeth groove (6) and transverse tooth thickness (7).

9. the buncher of the pure engaged transmission of pawl ratchet according to claim 1, it is characterised in that described is each Truncated cone-shaped roller is respectively made up of 2~6 groups of small round platforms.