CN105065595B - A kind of transmission component, transmission mechanism, transmission device and power transmission device - Google Patents
A kind of transmission component, transmission mechanism, transmission device and power transmission device Download PDFInfo
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- CN105065595B CN105065595B CN201510411432.6A CN201510411432A CN105065595B CN 105065595 B CN105065595 B CN 105065595B CN 201510411432 A CN201510411432 A CN 201510411432A CN 105065595 B CN105065595 B CN 105065595B
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- power transmission
- transmission
- travelling carriage
- rolling post
- transmission shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2261—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers arranged substantially perpendicular to the screw shaft axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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Abstract
The present invention relates to a kind of transmission component, comprise power transmission shaft, move back and forth part and slideway, described power transmission shaft side surface is arranged with a left-handed cylindrical spiral groove and a dextrorotation cylindrical spiral groove, article two, the closed-loop path of the end to end formation rounding off of helical flute, move back and forth part and be arranged on the slideway be arrangeding in parallel with drive shaft axis and with the helical flute on power transmission shaft and engage, thus described in move back and forth part along with power transmission shaft rotation and advance and move back and forth along slideway along helical flute; The described part that moves back and forth comprises rolling post, and the axis of described rolling post keeps vertical with the axis of power transmission shaft, rolls and engage with the sidewall of described helical flute in described rolling post side; The described sidewall roughness Ra scope of described helical flute is at 0.4 μ m-1.0 μ m. The invention still further relates to a kind of transmission device that comprises above-mentioned transmission component, also comprise gear drive and tripper, connecting rod and bent axle. The present invention can be transmitted high pulling torque, and the latching characteristics that overcomes screw rod is realized continuous transmission, can utilize to a certain extent the inertia force of output shaft to input as power, greatly saves the energy.
Description
Technical field
The present invention relates to mechanical transmission fields, in particular to by the power of the rotating power source such as motor, engine with revolveMoving vehicle, the boats and ships etc. of passing to of transhipment need to move the equipment that force and motion is inputted.
Background technology
In the dynamical system such as vehicle, boats and ships, there is the demand to effectively power and transmission system, particularly, for example pure electronicVehicle, in the motor-driven situation of 310KW, once charging can only be travelled more than 400 kilometer, and during along with the use of vehicleBetween increase, flying power also can further decline. Therefore, input in certain situation when power, how to promote transmission systemPerformance becomes this area problem demanding prompt solution with reduction energy consumption, raising flying power.
According to the mechanical characteristic of Archimedes spiral, when cylindrical spiral screw drive, the less moment of torsion of input can produce larger straight lineThrust. If therefore screw rod can be applied in the transmission system of vehicle to produce positive to the power output of transmission systemImpact.
But although at present screw rod is widely used in mechanical transmission fields, also there are some application in this type of belt driveRestriction: 1, adopt slide block coordinate transmission with helical, transmission efficiency is low, easy to wear, is difficult for high-speed drive, and helical common because ofBe subject to processing the restriction of means, machining accuracy is generally lower, and helical surface smoothness is low, and coefficient of friction is large, causes equally transmissionEfficiency is low, therefore it has been generally acknowledged that reciprocating screw can not be used in the transmission system such as the high speed of vehicle, high reliability request; 2,Due to screw rod self latching characteristics, screw rod can only be there being rotary power when input transmission, when power source disappears, and screw rod self-locking, because ofThis it has been generally acknowledged that, reciprocating screw can only be used for specifically needing the operation place of self-locking, for example elevating mechanism, and can not be used for exampleAs vehicle, boats and ships etc. need to can also continue the transmission system of transmission in the time that power source temporarily disappears.
Summary of the invention
The technical problem existing based on prior art, the present invention overcomes technology prejudice, proposes a kind of transmission component, can overcome pastThe multiple inefficient defect of screw drive; Further, propose a kind of transmission mechanism, can automatically terminate self-locking, make this transmissionMechanism can be applied to the transmission system of vehicle, boats and ships, and can significantly reduce energy consumption.
Particularly, the invention provides a kind of transmission component, comprise power transmission shaft, move back and forth part and slideway,
Described power transmission shaft side surface is arranged with a left-handed cylindrical spiral groove and a dextrorotation cylindrical spiral groove, two helical flute headTail joins and forms the closed-loop path of rounding off,
Move back and forth part and be arranged on the slideway be arrangeding in parallel with drive shaft axis and with the helical flute on power transmission shaft and engage, thus instituteState and move back and forth part with power transmission shaft rotation and advance and move back and forth along slideway along helical flute;
The described part that moves back and forth comprises rolling post, and the axis of described rolling post keeps vertical, described rolling post with the axis of power transmission shaftEnd stretch in described helical flute and at the described side of post and the sidewall of described helical flute of rolling described in when moving back and forth part and advancingRoll and engage;
The described sidewall roughness Ra that states helical flute is less than 1.0 μ m.
Based on this technical scheme, move back and forth between part and power transmission shaft and become rolling friction from sliding friction in the past, and logicalCross the surface roughness of helical flute sidewall is controlled, make surface roughness be reduced to enough levels. By from these two sidesFace reduces frictional dissipation, and the frictional dissipation of transmission component of the present invention is significantly improved, thereby makes the application of this transmission componentThere is the possibility of more expansions in field.
Preferably, described left-handed helical flute and described right-hand helix groove intersect mutually in the axial centre position of described power transmission shaft, shapeBecome intersection region; Described rolling post comprises at least two main rolling posts and at least one auxiliary rolling post, described auxiliary rolling post folderBe located between two main rolling posts, described two main rolling posts and an auxiliary rolling post are arranged side by side along its direct of travel, with reallyGuarantor moves back and forth part and correctly passes through intersection region.
Based on this technical scheme, move back and forth part, along direct of travel, three rolling posts are set, thereby when through intersection region,Form each other the good constraint to direct of travel, can avoid moving member to drop into unexpected direction in position, intersection regionHelical flute, prevent from departing from direct of travel when the described intersection region moving back and forth part.
Preferably, described in, move back and forth part and comprise the core that turns for keeping described rolling post; Described main rolling post and auxiliary rolling postAlong axially comprising separately bearing construction section and helical cell wall joining section, the bearing construction section of described main rolling post is used for will by bearingDescribed main rolling post is installed on the core that turns that moves back and forth part, and the bearing construction section of described auxiliary rolling post is used for by means of bearing instituteState auxiliary rolling post and be held between described main rolling post and rotation thereupon, described helical cell wall joining section is suitable for the side with helical fluteWall form fit.
Based on this technical scheme, main rolling post and auxiliary rolling post by means of bearing construction section can suitably be maintained, suitableTrackslip moving, and can receive reliably and transferring power; The helical cell wall joining section of main rolling post and auxiliary rolling post can make mainRolling post and auxiliary rolling post roll and coordinate with helical flute sidewall excellent in shape while advancing in helical flute, and excessive compression can not occur,Improve the trafficability characteristic of rolling post.
Preferably, the described helical cell wall joining section of described main rolling post and described auxiliary rolling post comprises the first adjacent trapezoidal joining sectionWith the second trapezoidal joining section, the tapering of described the first trapezoidal joining section is less than the tapering of the second trapezoidal joining section, the second trapezoidal jointSection is near the bottom of described main rolling post or auxiliary rolling post.
Based on this technical scheme, the cross section of helical flute is designed to trapezoidal, and by the helical cell wall joining section shape of rolling postShape design joint shape is designed to the combination of two trapezoidal joining sections, can in steering procedure, promote to a greater extent main rolling postTrafficability characteristic, prevent and the excessive compression of helical flute sidewall, reduce system dynamic loss.
Preferably, described auxiliary rolling post also comprises the free segment that is positioned at bearing construction section top.
Based on this technical scheme, because auxiliary rolling post is freely installed, unnecessary constraint when reducing rolling post and installing, makes dressIt is easier to join, and also reduces system dynamic loss simultaneously.
Preferably, described power transmission shaft is one-body molded.
Based on this technical scheme, reach pre-owing to realizing the sidewall surfaces fineness that critical process requirement of the present invention is helical fluteFixed level, therefore, in the situation that technological effect is enough, described power transmission shaft can make any surface finish by means of any manufacture meansDegree reaches predetermined level.
Preferably, described power transmission shaft comprises axle center and axle sleeve, and one-body molded on the stage casing in described axle center have a projection, a described axleCover comprises Part I and Part II, and described Part I and Part II are set with and are fixed on axle center from the two ends in axle center respectivelyUpper, the sidewall of described projection is mutually corresponding with the sidewall of the Part I of described axle sleeve and Part II, jointly limits described circleThe trapezoidal helical flute of post.
Based on this technical scheme, the technological means that reaches helical flute surface accuracy due to current one-body molded mode will be brought manufactureThe shortcoming that cost is high, the mode of therefore more preferably selecting axle center and axle sleeve separately to manufacture, minimizing manufacturing cost, raising add work efficiencyRate; When split type manufacture, owing to not there is not the mutual interference of left-handed right-handed thread, helical flute sidewall can be added by screw grinder grindingWork, has ensured precision and the fineness of the trapezoidal helical stress surface of cylinder, between the trapezoidal helical flute sidewall of reduce to roll post and cylinder, rubsWiping power, improves transmission efficiency.
Preferably, described axle center and described axle sleeve are respectively by extrusion modling.
Based on this technical scheme, power transmission shaft adopts the mode of extrusion modling to manufacture, and cost is lower, working (machining) efficiency is higher.
Preferably, described in move back and forth part and also comprise travelling carriage, described travelling carriage is enclosed within on slideway and drives and move back and forth part along slidewaySlide, described in turn core and be contained in rotationally in described travelling carriage.
Based on this technical scheme, rolling post is suitably remained on and is turned in core, and turn core can be according to the side of advancing of rolling postTo rotate respective angles in travelling carriage, can make described moving member move back and forth along slideway by means of travelling carriage simultaneously, guarantee to passThe rotation of moving axis is converted into moving back and forth of travelling carriage.
Preferably, described travelling carriage is made up of the upper travelling carriage cooperatively interacting and the assembling of downslide moving frame, and described upper travelling carriage comprises oneThe elliptical hole of individual up/down perforation, the long axis slideway axis direction of described elliptical hole arranges, described in turn core cross section for circular,The described core that turns coordinates with the via clearance of described travelling carriage.
Based on this technical scheme, when moving member experiences while turning in helical flute, the elliptical aperture of travelling carriage allows to turn core at slidewayAxis direction is offset slightly, and to strengthen the trafficability characteristic of moving member in helical flute, thereby even if slightly deviation is also for the size of helical fluteBe unlikely to that moving member is stuck, thereby improve system tolerance and functional reliability.
Preferably, described travelling carriage and described in turn between core balance keeper and bolster be set, described balance keeper is used forDescribed in making, turn the longitudinal axis keeping parallelism of the longitudinal axis of core and the elliptical aperture of described travelling carriage, described bolster turns described in eliminatingReversing impact between core and described travelling carriage.
Based on this technical scheme, when advancing in helical flute, moving member can remain vertical, and in the time that moving member commutatesTravelling carriage and the impact energy turning between core access elimination effectively, commutate more steadily smooth.
Preferably, described balance keeper be arranged on described travelling carriage and described in turn two trunnion shafves between core, described balanceDescribed in axle one end is inserted in, turn in the hole of core sidewall formation, the other end is inserted in the mounting hole of described travelling carriage sidewall formation. InstituteState bolster and be described in being arranged on and turn decorative pearl on top of an official cap spring and the decorative pearl on top of an official cap between core and described travelling carriage, described decorative pearl on top of an official cap spring one end is against topPearl also remains on the decorative pearl on top of an official cap to turn in core week cannelure upwards, and the other end is against described travelling carriage.
Based on this technical scheme, balance keeper and bolster adopt preferred mode to be manufactured, manufacturing process and assemblerSkill is relatively simple, balance and buffering respond well.
Between described travelling carriage and described slideway, linear bearing is set.
Based on this technical scheme, the assembling between travelling carriage, linear bearing and slideway more easily realizes, and reduces and manufactures and assemblingCost, improves efficiency of assembling.
Preferably, the bearing construction section of described main rolling post is provided with 6 groups of bearings; The bearing construction section of described auxiliary rolling post is establishedBe equipped with 2 groups of bearings.
Based on this technical scheme, 6 groups of bearings make main rolling post transferring power more reliably, improve system reliability; AuxiliaryHelp rolling post to be only responsible for the trafficability characteristic of moving member, do not participate in transferring power, 2 groups of bearings are only set and can ensure that transmission effect is not yetCan additionally increase manufacturing cost.
The invention also discloses a kind of transmission mechanism, it is characterized in that, comprise previously described transmission component, also comprise that gear passesMove and release mechanism, connecting rod and bent axle, wherein, one end of connecting rod is connected with the travelling carriage pivotable of described transmission component, the other endBe connected with the power shaft pivotable of bent axle; The driving gear of described gear drive and release mechanism is arranged on described in described transmission componentOn the rotation output of power transmission shaft, the output gear of described gear drive and release mechanism is arranged on the output shaft of described bent axle.
Based on this technical scheme, rotatablely moving of rotating power source passes to power transmission shaft, is converted into rotatablely moving of power transmission shaft,Rotatablely moving of power transmission shaft is converted to the linear reciprocating motion of travelling carriage by described transmission component, then by contracting connecting rod and the bent axle of relaxingBe converted to rotatablely moving of bent axle, owing to having utilized the mechanical characteristic of Archimedes spiral, less moment of torsion input will be produced connecting rodRaw larger linear thrust, therefore efficient transferring power in this process; The rotation of the rotation output of power transmission shaft is by means of gearTransmission and release mechanism pass to the output shaft of described bent axle, from another channel transferring power, make like this biography of this transmission mechanismEfficiency of movement is further promoted. On the other hand, in the time that power transmission shaft stops power input, crank shaft output shaft is at the work of rotator inertiaWith lower continuation rotation, play the effect of collecting inertia force; Bent axle rotarily drive gear drive and the reverse transmission of release mechanism bandMoving power transmission shaft rotation, thus the self-locking of transmission component is removed, and transmission mechanism is worked on. Like this, make thisTransmission mechanism can be realized the application in the transmission system of vehicle, boats and ships etc., and in such application, transmission mechanism canObtain enough power output, energy-conserving and environment-protective with less energy input.
Preferably, on the travelling carriage of described transmission component, be formed with outstanding hangers, described connecting rod by means of bearing with described inHangers pivotable connects.
Based on this technical scheme, described outstanding hangers makes the location arrangements of connecting rod and power transmission shaft or travelling carriage more reasonable,Can in connecting rod rotation process, not interfere.
Preferably, described gear drive comprises with release mechanism the active roller gear, the transition circle stud wheel, passive that continue and coordinateRoller gear, the first conical gear and the second conical gear.
Based on this technical scheme, described gear drive and release mechanism are exported through the transmission of gear drive route the power of power transmission shaftTo output shaft, the power output of power transmission shaft is utilized greatly, also can ensure that gear train helps release power transmission shaft simultaneously.
Preferably, the travelling carriage of described transmission component and described connecting rod adopt light-high-strength metal material to make; Described transmission groupThe power transmission shaft of part, post and turn core and adopt high hardness wear-resisting metal material to make rolls.
Preferably, described light-high-strength metal material is aluminium alloy; Described high hardness wear-resisting metal material is bearing steel.
Based on technique scheme, the reliability of suitable material raising transmission mechanism reduces the kinetic equation loss of transmission mechanism simultaneously.
The present invention also proposes a kind of transmission device, comprises housing, is provided with transmission mechanism as previously described in described housing.
Based on this technical scheme, aforementioned transmission mechanism can be applied in vehicle, boats and ships etc. as transmission device, casingChanging structure provides necessary support and lubricates to the each parts of transmission mechanism.
The present invention also proposes a kind of power transmission device, comprises rotating power source and one transmission device as previously described, whereinThe rotation input synchronous rotary of power transmission shaft in the rotation output of rotating power source and described transmission device.
The present invention also proposes a kind of power transmission device, comprises rotating power source and multiple transmission device as previously described, whereinThe rotation output of rotating power source and the rotation input synchronous rotary of power transmission shaft in transmission device described in one of them.
The output of motive power outputting apparatus of the present invention connects generator, described in the power drive of described motive power outputting apparatus outputGenerator produces electric energy.
Based on this technical scheme, to use the vehicle of new forms of energy battery as example, aforementioned transmission device combines with rotating power source,Can utilize the drive characteristic of described transmission mechanism above, with lower power input, obtain larger through aforementioned transmission devicePower output, saves the energy, significantly improves the flying power of battery, and can utilize the power drive generator generating of output.Meanwhile, because energy consumption is little, to battery, flying power improves, and charge frequency reduces, and has extended the service life of battery.Therefore, this programme is without improve motor, battery, automatically controlled performance in the situation that, the continuation of the journey that can significantly improve vehicle, boats and shipsAbility, energy-efficient.
Brief Description Of Drawings
Below will make a more detailed description embodiments of the present invention according to the following drawings, wherein:
Fig. 1 is the overall schematic of power transmission device of the present invention;
Fig. 2 is that power transmission device of the present invention is removed the overall top view after housing;
Fig. 3 is the blast front view of power transmission device of the present invention;
Fig. 4 be transmission component of the present invention respectively to view;
Fig. 5 be in transmission component of the present invention power transmission shaft respectively to view;
Fig. 6 is the part drawing in power transmission shaft of the present invention axle center;
Fig. 7 is the explosive view that moves back and forth part in transmission component of the present invention;
Fig. 8 is the part drawing that the present invention moves back and forth upper travelling carriage in part;
Fig. 9 be the present invention move back and forth part transfer core respectively to view;
Figure 10 be the present invention move back and forth part transfer core cap respectively to view;
Figure 11 is the part drawing that the present invention moves back and forth main rolling post in part;
Figure 12 is the schematic diagram that the present invention moves back and forth auxiliary rolling post in part;
Figure 13 be gear drive of the present invention and release mechanism, connecting rod and bent axle respectively to view;
Figure 14 is the form that is used in combination of transmission device of the present invention. Specific embodiment
Before specifically describing, be necessary the description about orientation in embodiment to make an explanation as follows: upper described in this descriptionAll with embodiment of the present invention medium power transmission equipment, the orientation after horizontal positioned is as a reference in lower left and right. If had in every width accompanying drawingMultiple views, the projection relation between each view meets the principle of mechanical engineering drawing, for the accompanying drawing of identical parts in each viewMark is repeat mark no longer.
Fig. 1 has shown front view, top view and the right view of power transmission device of the present invention. As seen from Figure 1, power transmission is establishedStandby 1000 comprise transmission device 100 and brushless electric machine 200. Transmission device 100 internal structures are covered and support by its housing, instituteState housing and comprise case lid 101 and enclosure body 102, visible two holes 1011 and 1012, case lid top, are preferably screwed hole,Be respectively lubricant surplus exploration hole and lubricant and add hole. Brushless electric machine 200 is that transmission device 100 is defeated as rotating power sourceEnter rotary power. The output shaft 103 of transmission device 100 stretches out enclosure body 102 outsides, and output gear 46 is by means of output gearWheel back-up ring 461, output gear key 462, end ring 463 and bearing 464 are arranged on described output shaft 103.
Fig. 2 has shown the overall top view after power transmission device removal housing of the present invention, for clearly considering, has concealed shellBody. Fig. 2 is visible, and the internal structure of transmission device 100 comprises power transmission shaft 10, moves back and forth part 20, slideway 30, gear passMove and release mechanism 40, connecting rod 50 and bent axle 60. Power transmission shaft 10, move back and forth that part 20 and slideway 30 is common forms an energyEnough inputs of the rotation by power transmission shaft 10 are converted into and move back and forth the transmission component that move back and forth of part 20 along slideway 30.
Fig. 3 has shown that the master of power transmission device of the present invention looks explosive view. Power transmission shaft 10 comprises axle center 11 and axle sleeve 12, axle center11 and axle sleeve 12 be fixed together by means of hollow pin 13. Power transmission shaft 10 is near one end of brushless electric machine 200, i.e. rotation is inputtedEnd, is provided with transmission shaft bond 14, is connected with transmitting rotary power and fortune so that power transmission shaft input forms key with brushless electric machine 200Moving. The two ends of power transmission shaft 10 arrange respectively taper roll bearing 15 so that power transmission shaft can be supported by enclosure body 102 pivotables,Taper roll bearing 15 arranged outside bearing baffles 16, bearing sealed ring 17, sealing ring near brushless electric machine 200 1 sides are pressedIron 18 is with location and sealed bearing. Concrete structure about power transmission shaft 10 will below be described in more detail.
Move back and forth part 20 and be arranged on the slideway 30 be arrangeding in parallel with the axis of power transmission shaft 10, described in move back and forth part 20 and wrapDraw together three rolling posts 21, turn core 22 and travelling carriage 23, turn core 22 for keeping described rolling post 21, described travelling carriage 23 overlapsOn slideway 30 and power transmission shaft 10, drive to move back and forth part 20 and engage with power transmission shaft along the slideway post that slides and make to roll described cunningMoving frame 23 comprises travelling carriage 231 and downslide moving frame 232, and upper travelling carriage 231 arranges a longitudinal hole, described in turn core 22Be set in the through hole of described travelling carriage 23. About rolling post 21, turn core 22 and travelling carriage 23 more specifically structure will underLiterary composition is described in more detail.
Slideway 30 arranges two, lays respectively at the left and right sides of power transmission shaft 10, and fixed mount is located in enclosure body 102. SlidingThe more specifically structure in road 30 will below be described in more detail.
Gear drive comprises with release mechanism 40 the active roller gear 41, transition circle stud wheel 42, the passive cylinder that continue and coordinateGear 43, the first conical gear 44 and the second conical gear 45. The active roller gear of described gear drive and release mechanism 4041 are arranged on the rotation output of described power transmission shaft 10 by active roller gear key 412 and driving gear jump ring 411; DescribedThe second conical gear 45 of gear drive and release mechanism 40 passes through as the output gear of described gear drive and release mechanism 40Conical gear key 452 is arranged on the power shaft of described bent axle 60. The more specifically structure of described gear drive and release mechanism 40To below be described in detail.
Connecting rod 50 one end are connected with hangers 233 pivotables outstanding on travelling carriage 23, for example, can realize pivotable by means of bearing and connect;The other end is connected with the power shaft pivotable of bent axle 60, for example, can realize pivotable by means of bearing and connect. Connecting rod 50 and bent axle 60More specifically structure will below be described in more detail.
Below in conjunction with other accompanying drawings with regard to transmission component (comprise power transmission shaft 10, move back and forth part 20 and slideway 30, as shown in Figure 4),The concrete structure of gear drive and release mechanism 40, connecting rod 50 and bent axle 60 is described in detail respectively.
Power transmission shaft 10
As shown in Figure 5, in the present embodiment, power transmission shaft 10 is for being horizontally disposed with (also not getting rid of vertically arranged power transmission shaft scheme)Longitudinal ladder column structure, the left-handed and trapezoidal helical flute S of two cylinders of dextrorotation is set on it, two helical flute S are in transmissionAxle axial midpoint place intersects, and forms intersection region, and preferably, intersection region is below power transmission shaft.
The length of the each own helical pitch of the trapezoidal helical flute S of left-handed and dextrorotation cylinder on power transmission shaft 10, and two groove S head and the tailJoin and form closed-loop path, joint rounding off, presents twist shape space splayed in other words on the whole. The trapezoidal helical of cylinderThe helical pitch of groove S is relevant with the transmission efficiency of transmission mechanism, and helical pitch is less, and transmission efficiency is higher, and those skilled in the art can rootAccording to the occasion of practical application and the helical pitch of the trapezoidal helical of Demand Design.
Certainly, will be appreciated that, two helical flute S also can respectively have two or more helical pitches, and this can be according to mechanismGearratio carry out suitable design. When the helical flute of a helical pitch coordinates with connecting bar and crankshaft, gearratio is 2:1, i.e. power transmission shaft10 rotate two circles, and band dynamic crankshaft rotates a circle; When the helical flute of n helical pitch coordinates with connecting bar and crankshaft, gearratio is 2n:1.
The sidewall of helical flute S is main driving face and the stress surface of coordinating, and in the present invention, this helical flute S sidewall roughness is requiredHeight so that itself and move back and forth within friction between part is reduced to the scope of permission, preferably, its sidewall roughness Ra lower than1.0 microns can reach enough transmission effects, more suitable for 0.4 micron-1.0 microns of the considerations of manufacturing cost, preferablyIt is 0.8 micron.
Due to the space Eight characters structure of helical flute S, on the power transmission shaft 10 of integrative-structure, cannot adopt traditional screw thread process technologyCarry out the processing of helical flute S, therefore, the present invention preferably adopts split type power transmission shaft design.
In the present embodiment, split type power transmission shaft 10 comprises that axle center 11 and axle sleeve 12 combine. On the stage casing in axle center 11, one becomesType has a projection 111 (axle centre structure is more high-visible by Fig. 6), and described axle sleeve 12 comprises Part I 121 and secondDivide 122, described Part I 121 and Part II 122 are respectively from the two ends suit in axle center 11 and by means of power transmission shaft hollow pin 13Be fixed on axle center 11, Part I 121 and the Part II 122 of described projection 111 both sides and described axle sleeve 12 are mutually rightShould, jointly limit the trapezoidal helical flute S of cylinder. The sidewall of described projection 111 forms one of the trapezoidal helical flute sidewall of described cylinderSide, the sidewall that described Part I 121 and Part II 122 face described projection 111 forms the trapezoidal helical flute side of described cylinderThe opposite side of wall. Owing to adopting split-type structural, the sidewall of projection 111, axle sleeve Part I 121 and Part II 122 canBy screw grinder grinding, ensure precision and the fineness of the trapezoidal helical stress surface of cylinder respectively, reduced the axis of rolling and cylinderThe coefficient of friction of trapezoidal spiral face, reduces system dynamic loss. Power transmission shaft 10 adopts split type manufacture, axle center 11 and axle sleeve12 can manufacture by modes such as extrusion modlings more easily, can significantly cut down finished cost, and improve working (machining) efficiency.
Will be appreciated that, as long as can reach the requirement of helical flute surface accuracy, power transmission shaft 10 also can be one-body molded, as long asMachining accuracy and the surface smoothness that can ensure by advanced manufacturing process helical cell wall, for example, adopt 3D printing technique.
Move back and forth part 20
As shown in Figure 7, moving back and forth part 20 comprises rolling post 21, turns core 22 and travelling carriage 23. Move back and forth part 20 entiretyAbove above power transmission shaft and by means of travelling carriage 23, be erected between two slideways 30 and along slideway 30 and moving back and forth. AssembleCheng Shi, the lower end of rolling post 21 is stretched in the helical flute S of power transmission shaft 10.
Travelling carriage 23
Described travelling carriage 23 comprises travelling carriage 231 and downslide moving frame 232. Upper travelling carriage 231 and downslide moving frame 232 are by suitableWhen connected structure link together. Described upper travelling carriage 231 and downslide moving frame 232 jointly between the two, limit one withThe power transmission shaft accommodating hole 234 that power transmission shaft 10 is coaxial and two respectively with two slideway accommodating holes 235 that slideway 30 is coaxial, therebyMake, in the time that described upper travelling carriage 231 and described downslide moving frame 232 are bonded together, described power transmission shaft 10 and two slideways30 can pass above-mentioned power transmission shaft accommodating hole 234 and slideway accommodating hole 235. The interior linear bearing 2351 that arranges of slideway accommodating hole 235,Friction when reducing relative sliding between slideway and travelling carriage. On upper travelling carriage 231, be provided with hangers 233.
As shown in Figure 8, the center of described upper travelling carriage 231 is provided with the vertical ellipse through hole 2311 connecting along the vertical direction,The minor axis diameter of elliptical hole 2311 with turn the equal diameters of core 22 or slightly more greatly, major diameter is slightly larger than minor axis diameterA bit, differ and be roughly not more than 3 millimeters. Be designed to elliptical hole and be helical flute S for regulating power transmission shaft 10 in processingThe error that process produces, does not make to move back and forth part 20 and is stuck in the time of reciprocating commutation. For example,, when travelling carriage 23 commutatesTime roll post while being blocked by helical flute S, turning core 22 can be offset a little along long axis direction in elliptical aperture, thereby makes the post that rollsNot dead by helical flute S gear, can continue to advance along helical flute S.
Turn core 22
As shown in Figure 9, described in to turn core 22 substantially cylindrical, be contained in the described elliptical hole 2311 of described travelling carriage 23,And can turn an angle back and forth therein and/or be offset a little along elliptical aperture long axis direction. The lower surface that turns core 22 has side by sideThree stepped holes, both sides stepped hole 2210 is through hole, for holding main rolling post 211; Intermediate step hole 2211 is blind hole,Be used for holding auxiliary rolling post; Shape and the bearing outside diameter thereof of the design of step and described rolling post 21 are suitable, described rolling post21 shape and bearing arrangement thereof will below described in more detail. The left and right sides wall that turns core 22 is offered two circular holes 2212,For holding the balance keeper 24 turning between core 22 and travelling carriage 23. Turn core 22 and upwards offer a ring near the week on topShape groove 2213, the cross section of this cannelure is circular arc, shape is suitable for turning the bolster 26 between core 22 and travelling carriage 23.
The top that turns core 22 is provided with and turns core cap 221, turns core 22 for stopping that rolling post 21 protrudes upward, and turns the structure of core capAs shown in figure 10. Turn core cap 221 can with turn that core 22 is one-body molded and also can form separately after by suitable juncture withTurn core 22 and engage, in embodiment shown in the drawings, turn core cap and be connected by four bolts with turning between core, and turning core topBeing provided with elongated projections 2214 matches in case spline core cap 221 with the recess 2215 that turns core cap 221 lower surface respective shapesAnd turn relatively rotating between core 22. The lower surface that turns core 22 also arranges two recess 2216, to hold the end of main rolling postEnd.
As shown in Figure 7, turn between core 22 and travelling carriage 23 and be provided with balance keeper 24, for keep turn core 22 all the time withThe elliptical aperture retainer shaft of travelling carriage 23 is to consistent or parallel, thereby vertical with the axis of power transmission shaft 10. Described balance keeper 24For be arranged on described travelling carriage and described in turn two trunnion shafves 241 between core. Article two, trunnion shaft 241 lays respectively at and turns core 22The left and right sides. Described in being formed on, described trunnion shaft 241 one end insertions turn in the circular hole 2212 (seeing accompanying drawing 9) on the sidewall of core left and right,And can be by bearing with respect to turning the rotation of core sidewall circular hole, the other end is inserted in the left and right sidewall corresponding positions of described travelling carriage elliptical aperturePut in the mounting hole of formation, it is enough large that the width of mounting hole along continuous straight runs is wanted, and is enough to make to move back and forth part 20 helical flute S'sWhen arbitrary position, all can make to turn core 22 and rotate enough angles, to ensure to move back and forth the direct of travel of part 20 and helical flute STrend adapts. Mounting hole arranged outside trunnion shaft buting iron 242 (the seeing Fig. 7) of travelling carriage 23, trunnion shaft buting iron is by means of boltBe fixed on travelling carriage 23 to prevent that trunnion shaft 241 from departing from operating position Deng securing member, certainly, also can be by travelling carriageDesign other corresponding Stop structures and realize this purpose.
Described turning between core 22 and described travelling carriage 23, bolster 26 (seeing Fig. 7) is also set, in the present embodiment, is formed as the decorative pearl on top of an official capSpring 262 and the decorative pearl on top of an official cap 261, described decorative pearl on top of an official cap spring 262 one end remain on along turning core 22 weeks against the decorative pearl on top of an official cap 261 and by the decorative pearl on top of an official cap 261In the cannelure 2213 of offering, the other end is against described travelling carriage 23. Under installment state, decorative pearl on top of an official cap spring 262 is in pressingContracting state. In the time moving back and forth part 20 and commutate, turn core 22 flip-flop side in the elliptical aperture of travelling carriage 23 in helical flute SThe tendency deflecting to meeting, namely turns between core 22 and travelling carriage 23 tendency that has collision, the returning of decorative pearl on top of an official cap spring 262Elastic force can be offset this tendency, avoids turning the impact between core 22 and travelling carriage 23. Bolster 26 also comprises decorative pearl on top of an official cap catch263, with decorative pearl on top of an official cap spring and decorative pearl on top of an official cap direct friction, avoid decorative pearl on top of an official cap spring, the decorative pearl on top of an official cap to depart from and coordinate.
Rolling post 21
Fig. 7 is visible, and described rolling post 21 comprises two the main rolling posts 211 and the auxiliary rolling post 212 that are arranged side by side, instituteStating auxiliary rolling post 212 is folded between two main rolling posts 211. Described when moving back and forth part and advancing described in main rolling post 211The sidewall of side and the trapezoidal helical flute S of described cylinder roll and engage. Will be appreciated that, the number of rolling post is also not limited only toThe present embodiment is disclosed, for example, can design three main rolling posts and two auxiliary rolling post alternative arrangements, or more, thisHave relation with scale, application scenario and the helical flute width of mechanism, those skilled in the art can make adaptability revision to this andDo not exceed scope disclosed by the invention.
Figure 11 is visible, and described main rolling post 211 comprises bearing construction section 2111, block joining section 2112, the first ladder verticallyShape joining section 2113, the second trapezoidal joining section 2114 and end conical section 2115. Described bearing construction section 2111 will be for leadingRolling post 211 by bearing 213 be installed on move back and forth part turn core 22, the bearing construction section 2111 of described active rolling post 211On be arranged side by side vertically six circle ball bearings 213, six circle bearings 213 are set and can share more equably main rolling post 211Radial pressure. Described block joining section 2112 is for stoping bearing 213 to depart from operating position, simultaneously for auxiliary rolling post212 bearing periphery engages. Described the first and second trapezoidal joining sections are in the time moving back and forth part and advance and the trapezoidal spiral shell of cylinderThe sidewall shape of wire casing S coordinates with the joint that more suitably rolls. It is second trapezoidal that the tapering of described the first trapezoidal joining section 2113 is less thanThe tapering of joining section 2114, the tapering of the first trapezoidal joining section 2113 is preferably 15 °, the cone of the second trapezoidal joining section 2114Degree is preferably 30 °, and the second trapezoidal joining section 2114 is near the bottom of described main rolling post or auxiliary rolling post. First, secondThe selection of trapezoidal joining section tapering is relevant with the sidewall slope angle of the trapezoidal helical flute S of cylinder of power transmission shaft 10, preferably, described inSidewall slope angle is 15-30 °. Described end conical section is applicable in the time moving back and forth part and advance by the trapezoidal helical flute of cylinderBottom surface.
Figure 12 is visible, and described auxiliary rolling post 212 comprises free segment 2121, bearing construction section 2122 and stop ring 2123 vertically,The first trapezoidal joining section 2124 and the second trapezoidal joining section 2125. Free segment 2121 stretches into the intermediate step that turns core 22 basal surfacesIn circular hole 2210, because the diameter of free segment 2121 is less than the diameter of stepped hole 2210 correspondent sections, therefore free segment sidewall is not subject toPower. Bearing construction section 2122 is arranged side by side two circle ball bearings 214 vertically, and bearing construction section 2122 will be for assisting rollingPost 212 rolls and engages with the side surface of the block joining section 2112 of main rolling post by means of bearing 214. Stop ring 2123 forStop bearing 214 to depart from operating position. Vertically total of the bearing construction section 2122 of auxiliary rolling post 212 and stop ring 2123Length preferably equals the length of the block joining section 2112 of main rolling post. Described the first and second trapezoidal joining sections are for back and forth movingWhen advancing, moving part engages with the sidewall of the trapezoidal helical flute of cylinder. The tapering of described the first trapezoidal joining section 2124 is less than the second trapezoidal connecingThe tapering of the section of closing 2125, the tapering of the first trapezoidal joining section 2124 is preferably 30 °, the tapering of the second trapezoidal joining section 2125Be preferably 15 °. The sidewall draft angles of the selection of first, second trapezoidal joining section tapering and the trapezoidal helical flute S of the cylinder of power transmission shaftSpend relevantly, preferably, described sidewall slope angle is 15-30 °.
By means of such structure, two main rolling posts 211 are installed on the circular hole 2210 that turns core 22 bottoms by means of bearing 213In and can rotate therein, the bearing 214 of auxiliary rolling post 212 is clamped by the block joining section 2112 of two main rolling posts 211(Fig. 7 is visible), thus auxiliary rolling post 212 also can not drop even without being arranged on to turn in core 22, and with main rolling post 211Rotation and follow rotation. Why auxiliary rolling post 212 can adopt so simple mounting structure is because it is at rolling postIn traveling process, mainly play the guiding role, substantially not with helical flute inwall contact, therefore do not need the peace with reference to main rolling postDress mode. In addition, adopt this mode of being installed by main rolling post clamping can reduce to turn the weight of core, thereby minimizing systemKinetic equation loss.
Two main rolling posts 211 of explained later and technological merit and an auxiliary rolling post that auxiliary rolling post 212 is arranged side by side212 guide effect. Two helical flute S that arrange on power transmission shaft 10 form intersection region, and shape is X-shaped region. The present embodimentMiddle X-shaped region has one, is positioned at the downside surface of power transmission shaft. Will be appreciated that, in the time of the more than helical pitch of helical flute S, XShape region can have multiple, and for example, in the time that helical flute S has two helical pitches, X-shaped region has three.
Because the central part in X-shaped region is superimposed with two helical flutes. In the time moving back and forth part along this region of left-handed helical flute process,While leaving this region, must enter left-handed helical flute; In the time moving back and forth part along this region of right-hand helix groove process, leave this district, must enter right-hand helix groove when in the territory. But, because each helical flute has certain width, if move back and forth part along advancingThe length of direction is very short, moves back and forth part and probably accidentally enter the helical flute of the opposite way round while entering X-shaped region. For fear ofThere is this situation, need to make to move back and forth the length long enough of part along direct of travel, when its front end enters through X-shaped regionWhile entering correct helical flute, its rear end has just just entered or has been about to enter X-shaped region. The present invention adopts two main rolling posts and oneThe auxiliary rolling post of bar ensures to move back and forth part and has enough length along direct of travel, and wherein the effect of auxiliary rolling post mainlyBe to ensure to move back and forth part correctly through JiXXing region, intersection region.
Will be appreciated that, the rolling that rolling post can be realized in the trapezoidal helical flute of cylinder by means of other mounting structure is advanced,And be not limited only to the disclosed mounting structure of the present embodiment.
Slideway 30
Slideway 30, for avoiding the consideration with turning core interference to arrange two, lays respectively at the left and right sides of power transmission shaft 10, slideway 30Axis direction parallel with the axis direction of power transmission shaft, the two ends fixed mount of slideway 30 is located in enclosure body 102. Slideway 30Be used for supporting travelling carriage, the latter is reciprocatingly slided thereon, in order to reduce friction, can between travelling carriage and slideway, arrange straightBobbin holds, and for reducing coefficient of friction, raises the efficiency, and saves energy consumption. Preferably, slideway 30 cross sections are designed to cylindrical,Also can be the suitable cross sectional shape such as oval, square, I-shaped.
Connecting rod 50
Connecting rod 50 presents long-armed shape 51 on the whole, is arranged in the roughly upper left side of power transmission shaft 10. One end of connecting rod 50 has canWith the first connecting portion 501 that upper travelling carriage 231 pivotables are connected, the other end have can be connected with the power shaft pivotable of bent axle 60Two connecting portions 502.
On the first connecting portion, be provided with circular hole, the axis designs of circular hole is along continuous straight runs, and hangs down with the axial space of power transmission shaft 10Directly. The first connecting portion 501 with on upper travelling carriage 231, be connected towards outstanding hangers 233 pivotables that form of the direction of connecting rod 50, excellentSelection of land, can connect by means of bearing pivotable. Hangers 233 arranges in pairs, is provided with circular hole on hangers, makes when the first connecting portionBetween a pair of hangers of 501 insertion time, the circular hole of the circular hole of hangers 233 and the first connecting portion is overlapping, and by means of pivot 53 and axleHold 55, bearing snap spring 57, end ring 58 form pivotable and connect (annexation is visible in Fig. 2), and pivot pad also can be setCircle 54 reduces wear. Will be appreciated that, hangers also can form one, and by means of suitable stop part and the first connecting portionFormation pivotable connects. The realization that pivotable connects is also not limited only to by the disclosed bearing of the present embodiment.
The second connecting portion comprises connecting rod cap 52, in the time that connecting rod cap is in place, on the second connecting portion, forms circular hole, the axle of circular holeLine along continuous straight runs arranges, and vertical with the axial space of power transmission shaft 10. Under the state of dismantling at connecting rod cap, the second connecting portionEngage with bent axle power shaft 61 and in the time that connecting rod cap is in place, the circular hole obvolvent of the second connecting portion on bent axle power shaft 61,Thereby forming pivotable with bent axle power shaft 61 is connected.
Connecting rod 50 adopts aluminum alloy materials to make, and the mid portion of connecting rod 50 length directions can form inner fovea part to alleviate evenThe weight of bar, the kinetic equation loss of minimizing system.
Bent axle 60
Bent axle 60 is arranged on the output one side top of power transmission shaft 10. Bent axle 60 comprises three sections, the bent axle power shaft in the middle of being positioned at61 and be positioned at the first output shaft 62 and second output shaft 63 of both sides. The axis of the first output shaft 62 and the second output shaft 63Dead in line, and parallel with the axis of bent axle power shaft 61, three axis along continuous straight runs arrange, and with power transmission shaft 10Axial space vertical.
Bent axle power shaft 61 is connected with connecting rod 50 pivotables; The first output shaft 62 is bored with second of gear drive and release mechanism 40Gear 45 connects by key, and as the output shaft 103 of transmission device of the present invention; The second output shaft 63 pivotables are supported on housingOn the sidewall of body 102, or as another output shaft of transmission device of the present invention.
The first output shaft 62 stretches out outside the sidewall of enclosure body 102, by the output of key syndeton and transmission device of the present inventionGear 46 connects.
Gear drive and release mechanism 40
Gear drive and release mechanism 40 are arranged on the output of power transmission shaft 10 on the whole, for by a part of power of power transmission shaftBe passed to bent axle 60 through train of reduction gears. Gear drive and release mechanism 40 comprise the active roller gear 41 that coordinates of continuing,Transition circle stud wheel 42, passive roller gear 43, the first conical gear 44 and the second conical gear 45.
Initiatively roller gear 41 is arranged on the output of power transmission shaft 10 by means of active roller gear key 412 (seeing Fig. 3), can be withPower transmission shaft 10 synchronously rotates. In the solution of the present invention, initiatively roller gear 41 both can be by power transmission shaft 10 driven rotary, alsoCan drive power transmission shaft 10 to rotate.
The axle 421 of transition circle stud wheel 42 is fixedly mounted on the bottom of a tooth rest 47, by means of bearing 423 and jump ring422,424, transition circle stud wheel 42 is realized the rotation around its axle. The axis of transition circle stud wheel 42 and drive shaft axis contour orSlightly high, make transition circle stud wheel 42 can with the 41 good engagement transmissions of active roller gear.
Passive roller gear 43 engages above the latter with transition circle stud wheel 42, and passive roller gear 43 is by back-up ring 431Be arranged in installation shaft with cushion cover 432. The axle of passive roller gear 43 is also supported by tooth rest 47, and difference is that its axle is wornCross the rear other end of tooth rest 47, by means of the first conical gear key 442, the first conical gear 44 is installed, therefore its axle can be by means ofBearing 441 is with respect to pivot gear frame 47 pivotables, thereby makes passive roller gear 43 drive the first conical gear 44 to rotate.Preferably, the number of teeth of passive roller gear 43 equates with the number of teeth of active roller gear 41. Bearing 441 is by means of bearing buting iron4410 remain on operating position.
The first conical gear 44 and the second conical gear 45 engaged transmission, preferably, the number of teeth of the first conical gear is the second circleThe half of the number of teeth of bevel gear. The second conical gear 45 is installed on the first output shaft of bent axle 60 by means of conical gear key 45262。
Above-mentioned each gear all can adopt straight-tooth gear or wildhaber-novikov gear.
Tooth rest 47 is arranged in the shell bottom wall of transmission device 100, is fixed on housing originally by suitable connected modes such as boltsOn the diapire or sidewall of body 102, or be integrally formed with enclosure body a part that forms enclosure body.
Operation principle of the present invention
Structure and the annexation of more than having described the each critical piece of the present invention, the following describes operation principle of the present invention.
Brushless electric machine 200 is as rotating power source to power transmission shaft 10 transmitting rotary power and motion, and power transmission shaft 10 rotates and will impelThe rolling post 21 that is arranged in helical flute S is advanced along the helical flute of power transmission shaft 10, turns core 22 and travelling carriage 23 edges thereby driveSlideway 30 moves. Power transmission shaft 10 rotates one week, and travelling carriage 23 moves to the second end, power transmission shaft from the first end of slideway 3010 rotate one week again, and travelling carriage 23 is got back to first end from the second end. The once reciprocating motion of travelling carriage 23, drivening rod 50Swing back and forth once, thereby be also with dynamic crankshaft 60 to rotate one week. That is to say, power transmission shaft 10 via connecting rod 50 to transmission of crankshaftGearratio be 2:1. Due to the mechanical characteristic of cylindrical spiral (being Archimedes's cylindrical spiral), less input torque producesLarger linear thrust, connect by connecting rod, drive crankshaft rotating, again the linear thrust of cylindrical spiral is converted into revolving force,By the lever force of bent axle, again strengthen driving torque, make output shaft obtain larger moment of torsion. Thereby the moving force and motion of realizationHigh efficiency of transmission.
Meanwhile, the process gear drive of the rotating output shaft of power transmission shaft 10 and release mechanism 40 will rotatablely move and be directly passed toBent axle 60, the speed reducing ratio of gear drive and release mechanism 40 is 2:1, therefore power transmission shaft 10 is via gear drive and release mechanism40 gearratios to transmission of crankshaft are also 2:1. Thereby realize the auxiliary transmission of moving force and motion. The gearratio 2:1 here works asResult when two helical flutes on power transmission shaft 10 are designed to each helical pitch. Will be appreciated that gear drive and release mechanismGearratio identical via the gearratio of connecting bar and crankshaft transmission with power transmission shaft. That is to say, when power transmission shaft passes via connecting bar and crankshaftWhen moving gearratio is 2n:1, the gearratio of gear drive and release mechanism also should be 2n:1.
On the other hand, when brushless electric machine 200 quits work, while not having rotary power to be applied to the input of power transmission shaft 10, bent axle60 output shaft (conventionally connected and be connected with the walking mechanism of shipping vehicle by suitable structure) continues rotation under effect of inertia,Drive the second conical gear 45 to rotate, then drive the first conical gear 44, passive roller gear 43, transition circle stud wheel 42Rotate with active roller gear 41, finally drive power transmission shaft 10 to rotate, power transmission shaft 10 drives move back and forth part 20 and move back and forth,Thereby drivening rod swings and then drives crankshaft rotating. By such mode, transmission device can solve the trapezoidal helical of cylinder certainlyThe characteristic of lock, and can utilize to a certain extent inertia force in vehicle traveling process as rotating power source, thus canThe energy resource consumption of saving the rotating power source of power transmission shaft input, further reaches energy-conservation effect.
The selection of metal material
The all parts of transmission component of the present invention, transmission device, due to stressed different with drive characteristic, preferably adopts different goldBelonging to material makes. For example, power transmission shaft, turn core, rolling post is preferably made with high-intensity bearing steel, travelling carriage and connecting rod are preferredMake with aluminum alloy materials, gear drive and release mechanism, bent axle and output gear are preferably made with 40Cr steel.
Application
The present invention is suitable for vehicle, boats and ships, and generator, the dynamical system of the dynamical system of air conditioner, particularly electric vehicle,Described rotating power source can be generator, motor, energy mix engine, petrol engine, Diesel engine or itsThe output of his transmission system.
According to the needs of transfer motion power, available multiple transmission combination of the present invention form a transmission device, also can adopt ten thousandChange transmission direction to joint. Figure 14 shows a kind of combining form, and the output of one of them transmission device is as other twoThe input of transmission device. Certainly, its combination is also not limited only to the combination shown in figure.
The output of motive power outputting apparatus of the present invention also can connect generator, and the power of described motive power outputting apparatus output drivesMoving described generator produces electric energy.
Finally it should be noted that: above-described each embodiment, only for technical scheme of the present invention is described, is not intended to limit; AlthoughWith reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it is still passableThe technical scheme that previous embodiment is recorded is modified, or to wherein partly or entirely technical characterictic be equal to replacement;And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (28)
1. a transmission component, is characterized in that, comprises power transmission shaft, moves back and forth part and slideway,
Described power transmission shaft side surface is arranged with a left-handed cylindrical spiral groove and a dextrorotation cylindrical spiral groove, twoThe closed-loop path of the end to end formation rounding off of helical flute,Moving back and forth part is arranged on the slideway be arrangeding in parallel with drive shaft axis and with the helical flute on power transmission shaft and connectsClose, thus described in move back and forth part along with power transmission shaft rotation and advance and move back and forth along slideway along helical flute;The described part that moves back and forth comprises rolling post, and the axis of described rolling post keeps vertical, institute with the axis of power transmission shaftThe end of stating rolling post stretches in described helical flute and in the side of the described post that rolls described in when moving back and forth part and advancingFace rolls and engages with the sidewall of described helical flute;
The described sidewall roughness Ra of described helical flute is less than 1.0 μ m.
2. transmission component according to claim 1, is characterized in that,
Described left-handed helical flute and described right-hand helix groove intersect mutually, form intersection region;
Described rolling post comprises at least two main rolling posts and at least one auxiliary rolling post, described auxiliary rolling post folderBe located between main rolling post, described main rolling post and auxiliary rolling post are arranged side by side along its direct of travel, with reallyGuarantor moves back and forth part and correctly passes through intersection region.
3. transmission component according to claim 2, is characterized in that,
The described part that moves back and forth comprises the core that turns for keeping described rolling post;
Described main rolling post and auxiliary rolling post are along axially comprising separately bearing construction section and helical cell wall joining section, instituteThe bearing construction section of stating main rolling post turns core described in described main rolling post being installed on by bearing, described inThe bearing construction section of auxiliary rolling post is for being held on described main rolling by means of bearing by described auxiliary rolling postBetween post and thereupon, rotate, described helical cell wall joining section is suitable for coordinating with the sidewall shape of helical flute.
4. transmission component according to claim 3, is characterized in that,
Described helical flute is trapezoidal helical flute,
The described helical cell wall joining section of described rolling post comprises the first adjacent trapezoidal joining section and the second trapezoidal jointSection, the tapering of described the first trapezoidal joining section is less than the tapering of the second trapezoidal joining section, the second trapezoidal joining sectionNear the bottom of described main rolling post or auxiliary rolling post.
5. transmission component according to claim 3, is characterized in that,
Described auxiliary rolling post also comprises the free segment that is positioned at bearing construction section top.
6. transmission component according to claim 1, is characterized in that,
Described power transmission shaft is one-body molded.
7. transmission component according to claim 1, is characterized in that,
Described power transmission shaft comprises axle center and axle sleeve, and one-body molded on the stage casing in described axle center have a projection, a described axleCover comprises Part I and Part II, and described Part I and Part II are set with from the two ends in axle center respectivelyAnd be fixed on axle center the sidewall phase of the sidewall of described projection and the Part I of described axle sleeve and Part IICorresponding mutually, jointly limit described helical flute.
8. transmission component according to claim 7, is characterized in that,
Described axle center and described axle sleeve are respectively by extrusion modling.
9. according to the transmission component described in claim 1-7 any one, it is characterized in that,
The described part that moves back and forth also comprises travelling carriage, and described travelling carriage is enclosed within on slideway and drives and move back and forth part along slidewaySlide, described in turn core and be contained in rotationally in described travelling carriage.
10. transmission component according to claim 9, is characterized in that,
Described travelling carriage is made up of the upper travelling carriage cooperatively interacting and the assembling of downslide moving frame, and described upper travelling carriage comprises oneThe elliptical hole of individual up/down perforation, the long axis slideway axis direction of described elliptical hole arranges, described in turn coreCross section is circular, described in turn core and coordinate with the via clearance of described travelling carriage.
11. transmission components according to claim 10, is characterized in that,
Described travelling carriage and described in turn between core balance keeper and bolster be set, described balance keeper is used forDescribed in making, turn the longitudinal axis keeping parallelism of the longitudinal axis of core and the elliptical aperture of described travelling carriage, described bufferingPart turns the reversing impact between core and described travelling carriage described in eliminating.
12. transmission components according to claim 11, is characterized in that,
Described balance keeper be arranged on described travelling carriage and described in turn two trunnion shafves between core, described balanceDescribed in axle one end is inserted in, turn in the hole that core sidewall forms, the other end is inserted in that described travelling carriage sidewall formsIn mounting hole.
13. transmission components according to claim 11, is characterized in that,
Described bolster is to turn decorative pearl on top of an official cap spring and the decorative pearl on top of an official cap between core and described travelling carriage, the described decorative pearl on top of an official cap described in being arranged onSpring one end remains on and turns in core week cannelure upwards against the decorative pearl on top of an official cap and by the decorative pearl on top of an official cap, and the other end is against described cunningMoving frame.
14. transmission components according to claim 9, is characterized in that,
Between described travelling carriage and described slideway, linear bearing is set.
15. transmission components according to claim 3, is characterized in that,
The cylinder construction section of described main rolling post is provided with 6 groups of bearings; The cylinder construction section of described auxiliary rolling post is establishedBe equipped with 2 groups of bearings.
16. 1 kinds of transmission mechanisms, is characterized in that, comprise the transmission component as described in claim 1-15 any one,Also comprise gear drive and release mechanism, connecting rod and bent axle, wherein,
One end of connecting rod is connected with the travelling carriage pivotable of described transmission component, and the power shaft pivotable of the other end and bent axle connectsConnect;
The driving gear of described gear drive and release mechanism is arranged on the rotation of power transmission shaft described in described transmission componentOn output, the output gear of described gear drive and release mechanism is arranged on the output shaft of described bent axle。
17. transmission mechanisms according to claim 16, is characterized in that,
On the travelling carriage of described transmission component, be formed with outstanding hangers, described connecting rod and described hangers pivotable connectConnect.
18. transmission mechanisms according to claim 16, is characterized in that,
Described gear release mechanism comprises the active roller gear, transition circle stud wheel, the passive Cylinder Gear that continue and coordinateWheel, the first conical gear and the second conical gear.
19. transmission mechanisms according to claim 16, is characterized in that,
The travelling carriage of described transmission component and described connecting rod adopt light-high-strength metal material to make; Described transmission groupThe power transmission shaft of part, post and turn core and adopt high hardness wear-resisting metal material to make rolls.
20. transmission mechanisms according to claim 19, is characterized in that,
Described light-high-strength metal material is aluminium alloy; Described high hardness wear-resisting metal material is bearing steel.
21. 1 kinds of transmission devices, comprise housing, are provided with as any one in claim 16-19 in described housingDescribed transmission mechanism.
22. transmission devices as claimed in claim 21, described housing comprises enclosure body and case lid, described shellBody body provides for described power transmission shaft, described slideway, described gear drive and release mechanism and described bent axleSupport, lubricant surplus exploration hole and lubricant are set in described case lid and add hole.
23. transmission devices as claimed in claim 22, described enclosure body passes described gear by means of tooth restMoving and release mechanism provides support.
24. 1 kinds of power transmission devices, comprise that rotating power source and one are as any one institute in claim 21-23The transmission device of stating, the wherein rotation of power transmission shaft in the rotation output of rotating power source and described transmission deviceInput synchronous rotary.
25. 1 kinds of power transmission devices, comprise rotating power source and multiple as any one institute in claim 21-23The transmission device of stating, wherein power transmission shaft in the rotation output of rotating power source and one of them transmission deviceRotation input synchronous rotary, the output of this one of them transmission device is as the input of other transmission devicesEnd.
26. according to the power transmission device described in claim 24 or 25, it is characterized in that described rotary powerSource is generator, motor, energy mix engine, petrol engine or Diesel engine.
27. power transmission devices according to claim 26, is characterized in that, described rotating power source is nothingBrush motor.
28. according to the power transmission device described in claim 24 or 25, it is characterized in that, described power outputThe output of equipment connects generator, and generator produces described in the power drive of described motive power outputting apparatus outputElectric energy.
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| EP3415791A4 (en) * | 2016-02-10 | 2019-10-23 | NSK Ltd. | Ball-recirculating tube and ball screw device |
| CN111946787B (en) * | 2020-07-29 | 2023-06-20 | 西安蒂普电子科技有限公司 | Reciprocating screw power machine |
| CN215059263U (en) * | 2021-04-30 | 2021-12-07 | 永康市光逸科技有限公司 | Transmission mechanism |
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