CN201916436U - Mechanism and part as well as device thereof with interconverted reciprocating motion and rotation motion - Google Patents
Mechanism and part as well as device thereof with interconverted reciprocating motion and rotation motion Download PDFInfo
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- CN201916436U CN201916436U CN2010206527735U CN201020652773U CN201916436U CN 201916436 U CN201916436 U CN 201916436U CN 2010206527735 U CN2010206527735 U CN 2010206527735U CN 201020652773 U CN201020652773 U CN 201020652773U CN 201916436 U CN201916436 U CN 201916436U
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Abstract
The utility model relates to a mechanism with interconverted reciprocating motion and rotation motion, which comprises at least one reciprocating motion part, a rotary motion part and a stand for supporting the mechanism. The rotary motion part is a shafting and comprises end shafts positioned at both ends and an eccentric shaft connected between the two end shafts. The end shafts are rotatably fixed on the stand and provided with main shaft end accommodating holes. The eccentric shaft comprises a main shaft and eccentric wheels arranged on the main shaft. Both ends of the eccentric wheels are respectively inserted into the main shaft end accommodating holes of the end shafts at both ends and rotatably connected with the main shaft end accommodating holes. Each eccentric wheel is at least correspondingly provided with one reciprocating motion part, the reciprocating motion part is provided with an eccentric wheel accommodating hole sleeved on the eccentric wheel, and the eccentric wheel accommodating hole is rotatably connected with the eccentric wheel. Reciprocating motion guide rails of adjacent reciprocating motion parts have a phase difference of 90 degrees in space. The utility model simultaneously discloses a relative part of the mechanism and a device using the mechanism. The mechanism provides the conversion mechanism combining the advantages of a crank and connecting rod mechanism and a crank and smooth block mechanism.
Description
Technical field
The utility model relates to a kind of movement conversion mechanism, specifically relates to a kind of to-and-fro motion and rotatablely moves the mechanism of conversion mutually.The utility model relates to the parts of forming said mechanism simultaneously, and the equipment that uses said mechanism to obtain.
Background technique
In machinery, need to realize to-and-fro motion in many instances and rotatablely move between mutual conversion.For example, reciprocating internal combustion engine need be converted to rotatablely moving of bent axle with the linear reciprocating motion that piston produces under the pressure of explosion of burning mixture promotes; In contrast, compressor need be converted to external motor-operated crankshaft rotating the linear reciprocating motion of piston.Above-mentioned two kinds of conversions are except the driving link difference, and it is consistent that motion of mechanism is required, and therefore, can realize that linear reciprocating motion is converted to the mechanism that rotatablely moves, and can be used for also generally that realizing rotatablely moves is converted to linear reciprocating motion.
Some linear reciprocating motions are provided under the prior art and have rotatablely moved the mechanism of conversion mutually.Usually under the technology, adopt connecting rod to realize above-mentioned conversion.Present most of internal-combustion engine, compressor all use connecting rod.The characteristics of this mechanism are, need to be connected between linear reciprocating motion spare and the rotating motion part by the connecting rod that swings back and forth, because the motion of connecting rod is to swing back and forth, this motion is a kind of compound movement, be difficult to carry out the inertia equilibrium of forces, and the swing of connecting rod can increase the side pressure of piston to the motion guide rail sidewall, cause the increase of frictional force, in addition, the existence of connecting rod still be this mechanism on vibration-direction, need possess certain length, make its size be difficult to further dwindle.
In order to address the above problem, Chinese patent literature CN85100358B discloses a kind of " crankshaft circular slide block reciprocating piston internal combustion engine ", Chinese patent literature CN1067741C discloses a kind of " crank and double-round slide reciprocating piston internal combustion engine ", and Chinese patent literature CN1144880A discloses a kind of " crank and multi-round slide reciprocating piston internal combustion engine ".The common feature of above-mentioned internal-combustion engine is that the connecting rod to internal-combustion engine under the current techique has carried out thorough improvement, adopts the smooth block with eccentric circular hole to replace connecting rod.Described eccentric circle slide block is cylindrical, and has the eccentric circular hole that is parallel to cylinder axis, and this eccentric circular hole is used to pass the crank pin of bent axle.The piston of this internal-combustion engine comprises the bizet and the guide portion that is connected two bizets at two ends, wherein have circular hole on the guide portion, the outer diametric plane of the aperture surface of this circular hole and above-mentioned smooth block matches, and described smooth block promptly is placed in the circular hole that matches with its periphery in the piston guide portion.When described piston be subjected to combustion gas in the cylinder promotion and in cylinder during to-and-fro motion, described eccentric circle slide block rotates around the center of circle of himself, and and then drive crankshaft reversal and rotate, thereby the to-and-fro motion of piston is converted into rotatablely moving of bent axle, again by the outside transmitted power of the rotary component that is connected with bent axle.The thought of above-mentioned patent also can be migrated in compressor or the evacuator easily, obtains crank round slider compressor or crank round slider evacuator.
Owing to cancelled connecting rod, its complicated reciprocally swinging also just is cancelled, and makes above-mentioned circular slider-crank mechanism can realize the complete equilibrium of inertial force easily; Equally, the side pressure to the guiding cheekn of reciprocating motion of the pistons that forms owing to the swing of connecting rod also can disappear, and the frictional force when making reciprocating motion of the pistons significantly reduces; In addition, behind the cancellation connecting rod, the size that can significantly dwindle vibration-direction, the size of entire mechanism is significantly dwindled.
But still there are some significant disadvantage in above-mentioned motion, has limited the utilization of circular slider-crank mechanism.At first, smooth block is arranged in the circular slider accommodation hole of piston in this mechanism, and crank pin needs to pass the eccentric opening on the smooth block again, and it is too concentrated that each part of this position is crossed, and the crank pin size is restricted, the power transmission of can not loading greatly.Secondly, during motion, the bearing axis speed height of smooth block and crank pin, and be in the mechanism depths, be difficult for heat radiation; Another problem is, the Bore-to-Stroke Ratio of this mechanism is subjected to the influence of smooth block size, can not be very high, and might make burning mixture light the pressure of explosion that the back produces can't fully discharge at every turn, causes fuel economy to descend.
The model utility content
At the problems referred to above, the utility model provides a kind of to-and-fro motion and rotatablely moves the mechanism of conversion mutually, this mechanism need not to use smooth block, thereby solved in the circular slider-crank mechanism variety of problems that the existence owing to smooth block brings, simultaneously, can also continue to keep the various advantages that the cancellation connecting rod brings in the circular slider-crank mechanism.
The utility model provides simultaneously and is used in above-mentioned to-and-fro motion and the parts of the mechanism of conversion mutually that rotatablely move, and uses above-mentioned to-and-fro motion and rotatablely move the internal-combustion engine and the compressor of the mechanism of conversion mutually.
The to-and-fro motion that the utility model provides and the mechanism of conversion mutually that rotatablely moves comprise at least one reciprocating part, rotating motion part and the frame that supports this mechanism;
Described rotating motion part is a system, comprises at the end axle at two ends and is connected two eccentric shafts between the end axle;
Rotatable being fixed on the frame of described end axle, and the running shaft of two end axles is located along the same line; Offer the spindle end receiving hole on the end axle, the running shaft of the axis of this spindle end receiving hole and end spool is parallel, and is e apart from the distance of this running shaft;
Described eccentric shaft comprises main shaft and at least one eccentric wheel that is arranged on the described main shaft; Described main shaft is a shaft part; Described eccentric wheel is a cylindrical body;
The axis of described eccentric shaft is parallel with described main-shaft axis, and the distance between both axis is e; When described eccentric wheel was two or more, adjacent eccentric wheel was 180 mode with phase difference and is provided with on main shaft; When forming rotating motion part with described end axle, described eccentric shaft is arranged between the two end axles, and the main shaft two ends of eccentric shaft insert respectively in the spindle end receiving hole of two end axles, and is connected with the spindle end receiving hole is rotatable;
Wherein, corresponding at least reciprocating part of each eccentric wheel of eccentric shaft; Reciprocating part is provided with the eccentric wheel receiving hole that is socketed on the eccentric wheel, and each eccentric wheel is rotatable to be placed in the eccentric wheel receiving hole of a reciprocating part; Described reciprocating part all places the to-and-fro motion guide rail on the frame, and the to-and-fro motion guide rail of adjacent reciprocating part correspondence spatially has the phase difference of 90 degree.
Preferably, the outer radial periphery of described main shaft is enclosed within the described eccentric wheel outer radial periphery or both outer phase inscribes.
Optionally, the main shaft of described eccentric shaft is provided with an eccentric wheel.
Optionally, the main shaft of described eccentric shaft is provided with two eccentric wheels.
Optionally, be provided with two eccentric shafts between the two end axles of this mechanism, be provided with joining shaft between described two eccentric shafts; Described joining shaft is provided with the eccentric opening that two phase differences are 180 degree, and two eccentric openings are e apart from the distance between the axis of this joining shaft; The opposed end of described two eccentric shafts inserts respectively in described two eccentric openings, and can be relative rotate in eccentric opening.
Optionally, corresponding each eccentric wheel all has a reciprocating part, and one of them is a piston, and another is piston, dynamic balance slide block or other any one to-and-fro motion element, and both are identical in quality.
Optionally, the main shaft of described eccentric shaft is provided with three eccentric wheels.
Optionally, each eccentric reciprocating part of correspondence is one; Wherein, the reciprocating part of the eccentric wheel correspondence at two ends, the left and right sides is a piston, and the reciprocating part of middle eccentric wheel correspondence is piston, dynamic balance slide block or other any one to-and-fro motion element.
Optionally, the quality of the to-and-fro motion element of described middle eccentric wheel correspondence equals the quality sum of the piston of left and right eccentric wheel correspondence.
Optionally, when described eccentric shaft is provided with two or more eccentric wheel, eccentric mutual alignment is set makes the barycenter of eccentric shaft be positioned on the axis of main shaft.
Optionally, described eccentric wheel and integrated spindle axis moulding.
The utility model also provides a kind of and is used for above-mentioned to-and-fro motion and the parts of the mechanism of conversion mutually that rotatablely move, and these parts are eccentric shaft, and described eccentric shaft comprises main shaft and at least one eccentric wheel that is arranged on the described main shaft; Described main shaft is a shaft part; Described eccentric wheel is a cylindrical body;
The axis of described eccentric shaft is parallel with described main-shaft axis, and the distance between both axis is e; When described eccentric wheel was two or more, adjacent eccentric wheel was 180 mode with phase difference and is provided with on main shaft.
The utility model also provides a kind of equipment, and this equipment is internal-combustion engine, uses above-mentioned each described to-and-fro motion and rotatablely moves the mechanism of conversion mutually.
The utility model also provides a kind of equipment, and this equipment is compressor, uses each described to-and-fro motion and rotatablely moves the mechanism of conversion mutually.
The to-and-fro motion that the utility model provides and the mechanism of conversion mutually that rotatablely moves, its rotating motion part is an axle system, comprise end axle and eccentric shaft, described end axle is provided with the spindle end receiving hole that is biased in its running shaft one side, the axis of this spindle end receiving hole is e with the distance of end axle running shaft, is used for the spindle nose of ccontaining described eccentric shaft; Described eccentric shaft comprises main shaft and is arranged at least one eccentric wheel on the main shaft, and described eccentric axis all has apart from e with the axis of main shaft, and has 180 on the adjacent eccentric wheel space and spend phase differences; The corresponding described eccentric wheel setting of the reciprocating part of this to-and-fro motion and rotation movement mutual conversion mechanism, each eccentric wheel is provided with a reciprocating part at least, has the eccentric wheel receiving hole that is enclosed within on the eccentric wheel on the described reciprocating part, and be rotatable connection between the two, described reciprocating part is subjected to the restriction of to-and-fro motion guide rail, can only on straight line, move, and the to-and-fro motion guide rail of the reciprocating part of adjacent eccentric wheel correspondence spatially has 90 degree phase differences; During motion, suppose the speed rotation with+ω of end axle, then described eccentric shaft is the center with the main-shaft axis, and with the speed rotation of-ω, at this moment, eccentric shaft hauls reciprocating part by eccentric wheel and moves on rectilinear orbit; When having at least two eccentric wheels, owing to have at least two eccentric wheels, the reciprocating part of different eccentric wheel correspondences is in the difference point position of living when rotating to 90 degree phase places constantly, the other side that so just can help each other overcomes point alive, make rotating motion part can continue to continue to rotatablely move to a sense of rotation, the proper motion of entire mechanism is maintained;
An aspect of the mechanism that the utility model provides has significant advantage: at first, because connecting rod is not set; Make and do not contain the movement parts that swings back and forth in this mechanism, the motion of all movement parts is simple motion, can carry out dynamic balancing easily; Secondly, owing in this mechanism smooth block is set no longer, make the design size of its reciprocating part to-and-fro motion stroke not be subjected to the restriction of smooth block size, can be provided with greatlyyer, discharge inadequate problem to overcome the too small burning mixture pressure of explosion that may cause of Bore-to-Stroke Ratio; In addition, smooth block is arranged in the piston, crank pin needs to pass the such labyrinth of smooth block eccentric opening again owing to do not exist in this mechanism, has simplified the assembling complexity of mechanism, and the lubricating oil path of mechanism etc. also is easy to design; Owing to no longer smooth block is set, make this mechanism have better inheritance equally, be convenient to tissue production current general connecting rod;
Aspect of the optimal technical scheme of mechanism of the present utility model, it is very big that main shaft on the eccentric shaft can be done, degree of overlapping between eccentric wheel and the main shaft be 100% (be the main shaft outer radial periphery be fully enclosed within the eccentric wheel outer radial periphery or both peripheries tangent), this helps improving the rigidity of axle system, improves reliability;
Said mechanism can be used for to-and-fro motion is converted to the equipment that rotatablely moves, for example internal-combustion engine; Also can be used for being transformed into reciprocating equipment, for example compressor with rotatablely moving.
Description of drawings
Fig. 1 is the to-and-fro motion of the present utility model and first embodiment's of the mechanism of conversion the structural representation mutually that rotatablely moves;
Fig. 2 is the mutual vertically arranged schematic representation of two reciprocating parts among first embodiment shown in Figure 1;
Fig. 3 is the structural representation of the end axle among first embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves;
Fig. 4 a and Fig. 4 b be respectively to-and-fro motion of the present utility model and first embodiment of the mutual mechanism of conversion of rotatablely moving in eccentric shaft one of structural representation and two;
Fig. 5 is the schematic representation of the reciprocating part among first embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves;
Fig. 6 is the structural representation of the eccentric shaft among second embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves;
The to-and-fro motion and the embodiment's of the mechanism of conversion the structural representation mutually that rotatablely moves that Fig. 7 constitutes for eccentric shaft shown in Figure 6;
Fig. 8 is the 3rd embodiment's of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves the end axle and the schematic representation of the structure that eccentric shaft constitutes;
Fig. 9 is the structural representation of the eccentric shaft among the 4th embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves;
The to-and-fro motion and the embodiment's of the mechanism of conversion the structural representation mutually that rotatablely moves that Figure 10 constitutes for eccentric shaft shown in Figure 9.
Embodiment
Below in conjunction with embodiment and accompanying drawing the to-and-fro motion of the present utility model and the mechanism that changes mutually that rotatablely moves are described in detail.
Embodiment one
Fig. 1 is the to-and-fro motion of the present utility model and first embodiment's of the mechanism of conversion the structural representation mutually that rotatablely moves.Fig. 2 is the left view of Fig. 1.Fig. 3, Fig. 4 a, Fig. 4 b and Fig. 5 be respectively to-and-fro motion shown in Figure 1 and first embodiment of the mutual mechanism of conversion of rotatablely moving in the structural representation of each assembly.
Please refer to Fig. 1, in the present embodiment, the frame (not shown) that the mechanism of this to-and-fro motion and the conversion mutually that rotatablely moves comprises reciprocating part, rotating motion part and supports this mechanism.
Described rotating motion part is axle system, comprises the eccentric shafts 12 that are connected at two end axle 10a at two ends and 10b and with revolute pair between described two end axle 10a and the 10b.Described reciprocating part 14a and 14b are socketed on the two ends of described eccentric shaft 12 respectively, and constitute revolute pair with eccentric shaft 12 respective end portions.
Please continue with reference to figure 1, described two end axle 10a and 10b have common axis m, when holding axle 10a and 10b to rotate for described two along the direction shown in the arrow among Fig. 1 11 along its axis m, reciprocating part 14a can move reciprocatingly along the direction of arrow among Fig. 1 13, and reciprocating part 14b can be along moving reciprocatingly (as shown in Figure 2) perpendicular to described reciprocating part 14a moving direction.Utilize structure shown in Figure 1, can realize along shown in the arrow 11 (also can be the opposite direction shown in this arrow 11) rotatablely move and Fig. 1 in arrow 13 and the conversion between the to-and-fro motion shown in the arrow 13b among Fig. 2.
Respectively each assembly of the mechanism shown in Fig. 1 is described in detail below in conjunction with Fig. 3, Fig. 4 a and Fig. 4 b and Fig. 5.
Fig. 3 is the structural representation of the end axle among first embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves.Two end axles shown in Fig. 1 can be identical, and end axle 10a wherein only is shown among Fig. 3.
Please refer to Fig. 3, in the present embodiment, end axle 10a comprises end journal 1 and end armshaft 2.Wherein, described end journal 1 rotating being fixed on the frame, concrete means of fixation can be passed through rolling bearing or sliding bearing, and other possible rotatable means of fixation.In the time of fixedly, the axis of the end journal of end axle 10a shown in Fig. 1 and end axle 10b is located along the same line, and also is that the two can be around common axis rotation.
Described end armshaft 2 is the protruding dish of the medial extremity that is arranged at end journal 1 end of the eccentric shaft shown in Fig. 1 12 (promptly towards).On described end armshaft 2, offer the spindle end receiving hole 3 of the end (please refer to shown in Fig. 4 a and Fig. 4 b) that holds eccentric shaft 12.The parallel axes of the axis of described spindle end receiving hole 3 and described end journal 1, and the distance that departs from described end journal 1 is e, as shown in Figure 3.
Described end axle 10a can also have other structure, but it comprises that at least a running shaft can rotate this end axle 10a around described running shaft, and comprises a spindle end receiving hole that is arranged on this end axle and departs from described running shaft.
In addition, the end axle 10a shown in Fig. 1 of present embodiment also can be identical with the 10b structure, as long as the two has identical running shaft, and identical the getting final product of distance of eccentric journal receiving hole central axis and this running shaft.
Fig. 4 a and Fig. 4 b be one of structural representation of the eccentric shaft 12 among first embodiment of to-and-fro motion of the present utility model and the mutual mechanism of conversion of rotatablely moving and two (wherein Fig. 4 b is the left view of Fig. 4 a).
Please refer to Fig. 4 a and Fig. 4 b, eccentric shaft 12 comprises main shaft 4 and is arranged at two eccentric wheels on the described main shaft 4: the first eccentric wheel 5a and the second eccentric wheel 5b.Wherein, described main shaft 4 is cylindrical shaft part.The described first eccentric wheel 5a and the second eccentric wheel 5b all also are cylindrical body, and be concrete, can be oblate cylinder, and its thickness can determine that its radial diameter generally radial diameter than main shaft 4 is big according to the needs of rigidity or others.General, the outer radial periphery of described main shaft 4 be enclosed within the described eccentric periphery or both peripheries tangent.In the present embodiment, describe to be cut to example in the outer radial periphery of main journal 4 and the described first eccentric wheel 5a and the second eccentric wheel 5b homogeneous phase, shown in Fig. 4 b.
The axis of the described first eccentric wheel 5a and the second eccentric wheel 5b all with the parallel axes of described main shaft 4, and two eccentric wheels equate with distance between the main shaft 4, are e, also promptly the distance with its end journal 1 of axis runout of the spindle end receiving hole 3 shown in Fig. 3 is identical.The described first eccentric wheel 5a and the second eccentric wheel 5b are 180 degree modes with phase place and are provided with on main shaft 4, be the both sides that the described first eccentric wheel 5a and the second eccentric wheel 5b are positioned at the axis of described main shaft 4, and the axis symmetry of the relative described main shaft 4 of axis of the first eccentric wheel 5a and the second eccentric wheel 5b.In addition, the setting of the first eccentric wheel 5a and the second eccentric wheel 5b needs also to make that the barycenter of eccentric shaft is positioned on the axis of main shaft.
The described first eccentric wheel 5a, the second eccentric wheel 5b and described main shaft 4 are integrally formed.Certainly also can be split-type structural between eccentric wheel and the main shaft 4, fixedly be assembled into one by link or linkage structure.The described first eccentric wheel 5a, the second eccentric wheel 5b can be solid constructions, also can repeated hole be set thereon as required, go heavy groove etc. to remove weight structure, perhaps add counterweight structure.In described main shaft 4 and two eccentric wheels, hollow channel can also be set as oil leab.
When assemblying rotating motion part with described two end axles 10a and 10b, described eccentric shaft 12 is arranged between two end axles 10a and the 10b, and insert respectively in the spindle end receiving hole of described two end axles at the two ends of the main shaft of eccentric shaft 12, and with this spindle end receiving hole is rotatable is connected, constitute revolute pair.
Fig. 5 is the schematic representation of the reciprocating part among first embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves.
Can be with reference to figure 5, reciprocating part has the eccentric wheel receiving hole 7 on the eccentric wheel that is enclosed within the eccentric shaft 12 shown in Fig. 4 a and Fig. 4 b, and when reciprocating part was socketed on the described eccentric wheel, the two constituted revolute pair.For ease of reciprocating part being socketed on the eccentric shaft 12, this reciprocating part is traditionally arranged to be split-type structural, and eccentric wheel receiving hole 7 is two and half holes behind the subdivision, repeats no more here.
In the present embodiment, described reciprocating part is two (as shown in Figure 1), is respectively reciprocating part 14a and reciprocating part 14b, and is socketed on respectively on the first eccentric wheel 5a shown in Fig. 4 a and the second eccentric wheel 5b.Two reciprocating part 14a and 14b can place the to-and-fro motion guide rail respectively, and its gabarit matches with the to-and-fro motion guide rail.The to-and-fro motion guide rail of above-mentioned two reciprocating parts spatially has the phase difference of 90 degree.For example, described to-and-fro motion guide rail can be arranged with arrow 13 shown in Figure 1 and with the direction of Fig. 2 arrow 13b.In addition, preferred in order to obtain best dynamic balancing effect, above-mentioned two reciprocating parts identical in quality.
Utilize the to-and-fro motion and the rotary motion conversion mechanism of the above embodiments, moving direction input driving force at two or any one reciprocating part, can be exchanged into and rotatablely move, and rotatablely move by end axle 10a or 10b output arbitrarily, thereby the external component that can drive other rotates.Otherwise,, can be exchanged into the to-and-fro motion power of two mutually perpendicular directions in end axle 10a or 10b input turn campaign driving force.
In the mechanism of the to-and-fro motion of present embodiment and the conversion that rotatablely moves, the reciprocating part of mutually perpendicular direction is the balance reciprocal inertia force mutually, and reciprocal inertia force is converted into rotating inertia force, and the balance quality of mechanism is good.In addition, in the mechanism of the to-and-fro motion of present embodiment and the conversion that rotatablely moves, two reciprocating parts of balance also can also overcome the problem of the point of living mutually mutually, guarantee normally carrying out of movement conversion, and mechanism stable is good.
In addition, the mechanism structure of the to-and-fro motion of present embodiment and the conversion that rotatablely moves is simply compact, and number of parts is few, is easy to safeguard.Thereby embodiment's of the present utility model switching mechanism can be applicable in internal-combustion engine and the compressor, substitutes the movement conversion mechanism of traditional crank-connecting rod.For example, two reciprocating parts can be used as piston, or one of them is as piston, and another is the reciprocating part of dynamic balance slide block or other form.With respect to the internal-combustion engine machine or the compressor of traditional connecting rod, the motor that the utility model embodiment's movement conversion mechanism constitutes has plurality of advantages, for example, balance quality is good, and the Bore-to-Stroke Ratio range of choice is big, no crankcase, compact structure, volume weight is little etc.And flexible function is changeable, for example, also can transform piston as the reciprocating part of dynamic balance slide block, is used for generator, compressor, and evacuators etc. constitute multifunctional machine.Modular construction in the assembly of the utility model embodiment's movement conversion mechanism and the traditional connecting rod is roughly the same, thereby has fine inheritance with traditional mechanism, realizes easily.
And, can also piston all be set at the vibration-direction two ends of reciprocating part, constitute three cylinder machines or four-cylinder or the like.
In addition, in embodiment of the present utility model, it is very big that main shaft on the eccentric shaft can be done, degree of overlapping between eccentric wheel and the main shaft be 100% (be the main shaft outer radial periphery be fully enclosed within the eccentric wheel outer radial periphery or both peripheries tangent), this helps improving the rigidity of axle system, improves reliability.
Embodiment two
Having two eccentric structures with eccentric shaft 12 among above-mentioned first embodiment, different is, eccentric shaft has three eccentric wheels in the present embodiment two, than the 3rd eccentric wheel 5c that has more among first embodiment, corresponding reciprocating part has more one at least, i.e. reciprocating part to should the 3rd eccentric wheel 5c being provided with.
Fig. 6 is the eccentric structural representation among second embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves, as shown in Figure 6, with respect to the eccentric shaft among Fig. 4 a, eccentric shaft in the present embodiment has three eccentric wheels, and adjacent eccentric wheel is that 180 degree modes are provided with phase difference on main shaft 4.The others of the eccentric shaft in the present embodiment can be identical with the eccentric shaft in the above embodiments one.
Fig. 7 is the to-and-fro motion of the eccentric shaft formation of Fig. 6 and the embodiment's of the mechanism of conversion the structural representation mutually that rotatablely moves.
Please refer to Fig. 7, different is with embodiment one in the mechanism of the to-and-fro motion of present embodiment and the mutually conversion that rotatablely moves, and utilizes to have three eccentric eccentric shafts, and the barycenter of eccentric shaft integral body is positioned on the axis of its main shaft.On each eccentric wheel, be separately installed with reciprocating part.In addition, in order to obtain best dynamic balancing effect, the quality settings of the reciprocating part of the corresponding second eccentric wheel 5b is the quality sum of the first eccentric wheel 5a and the pairing reciprocating part of the 3rd eccentric wheel 5c.The reciprocating part of the described second eccentric wheel 5b correspondence can be the dynamic balance slide block that starts counterbalance effect specially, also can be piston, perhaps the reciprocating part of other form.The others of present embodiment can be identical with the above embodiments one, repeats no more here.
The mechanism of the to-and-fro motion of present embodiment two and the conversion mutually that rotatablely moves has and the to-and-fro motion of the above embodiments one and the identical beneficial effect of mechanism of conversion mutually that rotatablely moves.Further, this mechanism not only can make reciprocal inertia force be converted to centrifugal force, be convenient to it parallel, but also be the moment of inertia of entire mechanism is able to balance.
In addition, utilize the mechanism of the to-and-fro motion of present embodiment two and the conversion mutually that rotatablely moves also can constitute internal-combustion engine and compressor.Especially, if first eccentric wheel 5a among Fig. 7 and the reciprocating part on the 3rd eccentric wheel 5c are changed to two-way ram (perhaps two opposed single action pistons), when the reciprocating part on the second eccentric wheel 5b is changed to dynamic balance slide block, can constitute H type four-cylinder internal combustion engine; If the reciprocating part on the second eccentric wheel 5b is changed to single action piston, then can constitute H-⊥ type five cylinder machines, or the like.That is to say; all can assemble single action piston, two-way ram and dynamic balance slide block at the first eccentric wheel 5a, the 3rd eccentric wheel 5c and the second eccentric wheel 5b; and different pistons can be realized such as pressurized air; bleed and different function such as internal combustion engine; combination can produce the internal-combustion engine and the multi-purpose machine of various ways between them; those skilled in the art can make corresponding change according to instruction of the present utility model, and the form after these change all should be included within the protection domain of the present utility model.
Embodiment three
In the present embodiment, the mechanism among two above-mentioned first embodiments is serially connected, can constitutes the structure that distributes in upright arrangement, internal-combustion engine for example in upright arrangement or compressor.
Fig. 8 is the 3rd embodiment's of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves the end axle and the schematic representation of the structure that eccentric shaft constitutes.
As shown in Figure 8, in this structure, between two end axles 10a and 10b, be provided with two eccentric shafts: the first eccentric shaft 12a and the second eccentric shaft 12b, the structure of each eccentric shaft can be identical with the eccentric shaft among above-mentioned first embodiment.
Between two eccentric shafts, be provided with joining shaft 6.Described joining shaft 6 is provided with two phase places and is the eccentric opening that 180 degree are provided with, and each eccentric opening is e apart from the distance between the axis of this joining shaft, and the parallel axes of the axis of eccentric opening and joining shaft.Described joining shaft 6 can be by bearings on frame.
The described first eccentric shaft 12a inserts respectively in two eccentric openings of described joining shaft 6 with the relative end of the second eccentric shaft 12b, and can be relative rotate in eccentric opening.
All reciprocating part can be set on each eccentric wheel, the mechanism of set-up mode and reciprocating part can be identical with the first above-mentioned embodiment, repeats no more here.
Described end axle 10a and 10b can be supported on the frame, and the mechanism of supporting way and this end axle and the first above-mentioned embodiment can be identical.
Mechanism of the present utility model can be used to form internal-combustion engine in upright arrangement or compressor.
Embodiment four
Fig. 9 is the structural representation of the eccentric shaft among the 4th embodiment of the mechanism of the to-and-fro motion of the present utility model and the mutual conversion that rotatablely moves; The to-and-fro motion and the embodiment's of the mechanism of conversion the structural representation mutually that rotatablely moves that Figure 10 constitutes for eccentric shaft shown in Figure 9.
As shown in Figure 9, in the present embodiment, on eccentric shaft, only be provided with an eccentric wheel 5, the movement conversion mechanism that this eccentric shaft constitutes as shown in figure 10, can the socket reciprocating part on eccentric wheel 5, the end axle can be supported on the frame, and the others of present embodiment all first embodiment with above-mentioned are identical, no longer are repeated in this description here.The mechanism of present embodiment can be used to constitute single cylinder engine.Because an eccentric wheel only is set and a reciprocating part only is set on this eccentric wheel, thereby this mechanism need be by being provided with the problem that special structure overcomes the point of living in addition, for example gear structure repeats no more here.
The above embodiments only have one, two and three eccentric situations with eccentric shaft the utility model are illustrated, certainly, eccentric shaft can also have the eccentric wheel more than three, a reciprocating part is installed on each eccentric wheel at least, here be described no longer one by one, those skilled in the art can make corresponding change according to instruction of the present utility model.Form after these change all should be included within the protection domain of the present utility model.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model basic principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (14)
1. a to-and-fro motion and the mechanism of conversion mutually that rotatablely moves comprise at least one reciprocating part, rotating motion part and the frame that supports this mechanism; It is characterized in that,
Described rotating motion part is a system, comprises at the end axle at two ends and is connected two eccentric shafts between the end axle;
Rotatable being fixed on the frame of described end axle, and the running shaft of two end axles is located along the same line; Offer the spindle end receiving hole on the end axle, the running shaft of the axis of this spindle end receiving hole and end spool is parallel, and is e apart from the distance of this running shaft;
Described eccentric shaft comprises main shaft and at least one eccentric wheel that is arranged on the described main shaft; Described main shaft is a shaft part; Described eccentric wheel is a cylindrical body;
The axis of described eccentric shaft is parallel with described main-shaft axis, and the distance between both axis is e; When described eccentric wheel was two or more, adjacent eccentric wheel was 180 modes of spending with phase difference and is provided with on main shaft; When forming rotating motion part with described end axle, described eccentric shaft is arranged between the two end axles, and the main shaft two ends of eccentric shaft insert respectively in the spindle end receiving hole of two end axles, and is connected with the spindle end receiving hole is rotatable;
Wherein, corresponding at least reciprocating part of each eccentric wheel of eccentric shaft; Reciprocating part is provided with the eccentric wheel receiving hole that is socketed on the eccentric wheel, and each eccentric wheel is rotatable to be placed in the eccentric wheel receiving hole of a reciprocating part; Described reciprocating part all places the to-and-fro motion guide rail on the frame, and the to-and-fro motion guide rail of adjacent reciprocating part correspondence spatially has the phase difference of 90 degree.
2. the to-and-fro motion according to claim 1 and the mechanism of conversion mutually that rotatablely moves is characterized in that the outer radial periphery of described main shaft is enclosed within the described eccentric wheel outer radial periphery or both outer phase inscribes.
3. the to-and-fro motion according to claim 1 and the mechanism of conversion mutually that rotatablely moves is characterized in that the main shaft of described eccentric shaft is provided with an eccentric wheel.
4. the to-and-fro motion according to claim 1 and the mechanism of conversion mutually that rotatablely moves is characterized in that the main shaft of described eccentric shaft is provided with two eccentric wheels.
5. the to-and-fro motion according to claim 4 and the mechanism of conversion mutually that rotatablely moves is characterized in that, are provided with two eccentric shafts between the two end axles of this mechanism, are provided with joining shaft between described two eccentric shafts; Described joining shaft is provided with the eccentric opening that two phase differences are 180 degree, and two eccentric openings are e apart from the distance between the axis of this joining shaft; The opposed end of described two eccentric shafts inserts respectively in described two eccentric openings, and can be relative rotate in eccentric opening.
6. the to-and-fro motion according to claim 4 and the mechanism of conversion mutually that rotatablely moves, it is characterized in that, corresponding each eccentric wheel all has a reciprocating part, one of them is a piston, another is piston, dynamic balance slide block or other any one to-and-fro motion element, and both are identical in quality.
7. the to-and-fro motion according to claim 1 and the mechanism of conversion mutually that rotatablely moves is characterized in that the main shaft of described eccentric shaft is provided with three eccentric wheels.
8. the to-and-fro motion according to claim 7 and the mechanism of conversion mutually that rotatablely moves is characterized in that corresponding each eccentric reciprocating part is one; Wherein, the reciprocating part of the eccentric wheel correspondence at two ends, the left and right sides is a piston, and the reciprocating part of middle eccentric wheel correspondence is piston, dynamic balance slide block or other any one to-and-fro motion element.
9. the to-and-fro motion according to claim 8 and the mechanism of conversion mutually that rotatablely moves is characterized in that the quality of the to-and-fro motion element of described middle eccentric wheel correspondence equals the quality sum of the piston of left and right eccentric wheel correspondence.
10. the to-and-fro motion according to claim 1 and the mechanism of conversion mutually that rotatablely moves, it is characterized in that, when described eccentric shaft is provided with two or more eccentric wheel, eccentric mutual alignment is set makes the barycenter of eccentric shaft be positioned on the axis of main shaft.
11., it is characterized in that described eccentric wheel and integrated spindle axis moulding according to the arbitrary described to-and-fro motion of claim 1 to 10 and the mechanism of conversion mutually that rotatablely moves.
12. one kind is used for each the described to-and-fro motion of claim 1-claim 11 and rotatablely moves the parts of the mechanism of conversion mutually, these parts are eccentric shaft, it is characterized in that described eccentric shaft comprises main shaft and at least one eccentric wheel that is arranged on the described main shaft; Described main shaft is a shaft part; Described eccentric wheel is a cylindrical body;
The axis of described eccentric shaft is parallel with described main-shaft axis, and the distance between both axis is e; When described eccentric wheel was two or more, adjacent eccentric wheel was 180 modes of spending with phase difference and is provided with on main shaft.
13. an equipment, this equipment is internal-combustion engine, it is characterized in that, uses claim each described to-and-fro motion of 1-11 and rotatablely moves the mechanism of conversion mutually.
14. an equipment, this equipment is compressor, it is characterized in that, uses claim each described to-and-fro motion of 1-11 and rotatablely moves the mechanism of conversion mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206527735U CN201916436U (en) | 2010-12-06 | 2010-12-06 | Mechanism and part as well as device thereof with interconverted reciprocating motion and rotation motion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206527735U CN201916436U (en) | 2010-12-06 | 2010-12-06 | Mechanism and part as well as device thereof with interconverted reciprocating motion and rotation motion |
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| CN201916436U true CN201916436U (en) | 2011-08-03 |
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| CN2010206527735U Expired - Lifetime CN201916436U (en) | 2010-12-06 | 2010-12-06 | Mechanism and part as well as device thereof with interconverted reciprocating motion and rotation motion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075480A (en) * | 2013-01-23 | 2013-05-01 | 王敬达 | Method and device for transforming movement locus |
| TWI495784B (en) * | 2011-09-29 | 2015-08-11 | Hon Hai Prec Ind Co Ltd | Cylinder |
| CN106917733A (en) * | 2015-12-25 | 2017-07-04 | 罗凤玲 | A kind of power set |
| CN106979218A (en) * | 2017-04-12 | 2017-07-25 | 中清能（北京）科技有限公司 | A kind of eccentric shaft |
-
2010
- 2010-12-06 CN CN2010206527735U patent/CN201916436U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI495784B (en) * | 2011-09-29 | 2015-08-11 | Hon Hai Prec Ind Co Ltd | Cylinder |
| CN103075480A (en) * | 2013-01-23 | 2013-05-01 | 王敬达 | Method and device for transforming movement locus |
| CN103075480B (en) * | 2013-01-23 | 2016-05-25 | 王敬达 | A kind of method and apparatus of converting motion track |
| CN106917733A (en) * | 2015-12-25 | 2017-07-04 | 罗凤玲 | A kind of power set |
| CN106979218A (en) * | 2017-04-12 | 2017-07-25 | 中清能（北京）科技有限公司 | A kind of eccentric shaft |
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