CN1439822A

CN1439822A - Planetary transmission mechanism

Info

Publication number: CN1439822A
Application number: CN 03105285
Authority: CN
Inventors: 尹万春
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-18
Filing date: 2003-02-26
Publication date: 2003-09-03

Abstract

A novel movement mechanism with planetary gear chain for the conversions between rotation and linear reciprocation and from rotation to elliptical movement is composed of sun gear fixed to axle, planetary gear which as a diameter the equal to the radius of sun gear and can revolve around sun gear while rotate, satellite axle revolving around planetary gear, crank gear, cantilever, supporter and accessories. When the resistance arm of cantilever is equal to that of crank, the satellite axle does linear reciprocation with its stroke 4 times greater than that of resistance arm. If they are no equal to each other, the satellite axle does elliptical movement with its stroke 2-6 times greater than that of resistance arm.

Description

The novel motion of planetary gear train

Technical field

The present invention is the switching mechanism of a kind of super large stroke movement, is the mechanism that rotation and straight reciprocating motion are changed mutually, also can convert rotation to elliptic motion, is applicable in the various machineries of big stroke.

Background technique

Movement conversion mechanism has connecting rod at present, crankshaft ﹠ connecting, and cam etc., their stroke is little, and the straight reciprocating motion of longer distance motor commonly used is swung to or other way, and efficient is all very low.

Summary of the invention:

In order to address the above problem, the invention provides a kind of high efficiency super large stroke movement switching mechanism--the novel motion of-planetary gear train.

Technological scheme of the present invention is: in planetary gear train, adopt specific gear ratio, and planet wheel and the necessary interrelational form of sun gear, support cranking arm and supporting the cantilever of satellite axle to select suitable length for use of planet wheel in addition, the while during revolution of control planet, with unequal angular velocity, the direction rotation of contrary.Because with speed, direction contrary, the satellite axle that the cantilever that is fixed on the planet wheel is supported is done straight reciprocating motion or elliptic motion.The rotation that reaches the wheel of cranking arm converts the straight reciprocating motion of satellite axle or this purpose of elliptic motion to.

Specific practice is: the wheel of cranking arm is coaxial with sun gear, sun gear is fixed on the axle, the axle of planet wheel is loaded on the wheel of cranking arm, cantilever is installed on the planet wheel, the satellite axle is contained on the cantilever, the diameter of planet wheel equals the radius of sun gear, and the wheel of cranking arm also can install additional and cranks arm, and makes the resistance arm of cranking arm can be very long and the wheel of cranking arm is less.Planet wheel and sun gear have three kinds of interrelational forms: the engagement of (1) intermediate gear; (2) directly engagement; (3) chain connects.

The characteristics of three kinds of interrelational forms are: first kind of breast wheel engagement, and with reference to Fig. 1, Fig. 2.The axle of breast wheel is contained on the wheel of cranking arm, respectively with planet wheel and sun gear engagement, when the wheel of cranking arm rotates, planet wheel revolves round the sun thereupon, because of the restriction of breast wheel, planet wheel also with revolution unequal angular velocity reverse rotation, the satellite axle on the cantilever is also changeed with the same angular velocity star-wheel that detours.Second kind: directly engagement, with reference to Fig. 3, Fig. 4, this need install auxiliary wheel additional, the wheel of cranking arm changes, sun gear is rotation also, by the restriction of auxiliary wheel, and the angular velocity that makes the angular velocity of the reverse rotation of planet wheel equal to revolve round the sun, so-called auxiliary wheel, be meant be fixed on the same axle of sun gear go up the other end the main auxiliary wheel and with the auxiliary wheel of its engagement, the number of teeth of main auxiliary wheel is 1/2 of the auxiliary wheel number of teeth, auxiliary wheel and transduction wheel are fixed on the two ends of same axle, here, the conduction tooth number number of teeth of wheel that equals to crank arm.The third: chain connects, with reference to Fig. 5, Fig. 6.Thisly replaced breast wheel with chain, other is all the same, and the planet wheel of this kind can form overlength and crank arm away from sun gear, is fit to do the machinery of especially big stroke.

Also need to prove, here the satellite axle of the saying star-wheel that detours changes, because planet wheel is revolving round the sun around sun gear, the satellite axle is in the process that the star-wheel that detours changes, because their revolution are with speed, the direction contrary, the satellite axle is actual to be the vertical to-and-fro motion of doing greater than diameter in the diameter of planet wheel, the length that this motion is selected for use according to cantilever, as select the jib-length length (planetary gear revolution radius) that equals to crank arm for use, the satellite axle is just done straight reciprocating motion, as selects the length that does not wait for use, and the satellite axle is just done elliptic motion.The peculiar function of the present invention that Here it is promptly converts rotation to straight reciprocating motion or elliptic motion.Crank arm and this hyperbolic arm of force of cantilever owing to adopt, the firstth, arm of force length overall is multiplied; The secondth, formed the super large stroke; The 3rd is that the satellite axle can directly be done straight reciprocating motion.The three big characteristics of Here it is this mechanism, its maximum stroke, the satellite axle is 4 times of planetary gear revolution radius when doing straight reciprocating motion, when doing elliptic motion, available stroke be the planetary gear revolution radius 2-6 doubly.

The present invention can be used for the various machineries of the big stroke of various needs as a kind of basic system, as is used for the motor replacement crankshaft ﹠ connecting that straight line motion converts rotation to, because it has increased the arm of force, moment is increased, and this is the first, the second, and stroke of piston increases, extended stressed time of piston, according to I=Ft, momentum increases, and power just increases like this, improved the efficient of motor, again energy-conserving and environment-protective.Be used for converting to straight reciprocating motion, because stroke increases exponentially, jig frequency reduces, can reduce the acceleration change number of times of inertial load and other load, can also reduce the loss of plunger stroke that some reason causes, picture is on air compressor, on the pumping unit of using in the oil field all is like this, can also be used for flinger, as making fireworks display emission big gun, fast, safety reduces atmospheric pollution again, be used in and do the direct-push type pusher on ship or the submarine, can noiseless travel, be used in and do pusher on the underwater robot, can not mix water, help investigation job, or the like.

Description of drawings

Fig. 1 is the side view of breast wheel engagement of the present invention;

Fig. 2 is the front view of breast wheel engagement of the present invention;

Fig. 3 is the directly side view of engagement of the present invention;

Fig. 4 is the directly front view of engagement of the present invention;

Fig. 5 is the side view that chain of the present invention connects;

Fig. 6 is the front view that chain of the present invention connects.

Accompanying drawing number

1. sun gear, 2. breast wheel, 3. planet wheel, 4. satellite axle, 5. cantilever

6,7,10. spool, 8. crank arm the wheel of 9. cranking arm, 11. conduction wheels, 12. supports

13. auxiliary wheel, 14. main auxiliary wheel, 15. chains, 16. axle sleeves

Embodiment

Please refer to Fig. 1, Fig. 2, crank arm wheel (9) and sun gear (1) coaxial (6), wheel (1) is fixed on the axle (6), axle (6) is fixed on the support (12), and the axle (7) of wheel (2) and wheel (3) is fixed on the wheel (9) of cranking arm, and wheel (2) is meshed with wheel (1) wheel (3) respectively, cantilever (5) is fixed on the wheel (3), satellite axle (4) is fixed on the cantilever (5), and the diameter of wheel (3) is 1/2 of a wheel (1), and its rotation sees also the introduction of front interrelational form.

Fig. 3, among Fig. 4, the wheel (9) of cranking arm that (8) link to each other with it of cranking arm is an axle with fixing axle sleeve (16), main auxiliary wheel (14) is fixed on the same axle (6) with sun gear (1), wheel (3) and wheel (1) engagement, wheel (11) and wheel (9) engagement, wheel (13) is fixed on the same axle (10) with wheel (13) with wheel (14) engagement, wheel (11).

Among Fig. 5, Fig. 6, chain (15) links up wheel (3) and wheel (1), and other is just identical with Fig. 1, Fig. 2.

Claims

1, the novel motion of a kind of planet wheel, by sun gear, breast wheel, planet wheel, satellite axle, the compositions such as wheel, cantilever, axle, support of cranking arm, it is characterized in that: sun gear is coaxial with the wheel of cranking arm, and axle is fixed on the support, and sun gear is fixed on the axle, the axle of planet wheel and breast wheel is contained on the wheel of cranking arm, breast wheel is meshed with sun gear and planet wheel respectively, and cantilever is contained on the planet wheel, and the satellite axle is contained on the cantilever.

2, according to the novel motion of claim 1 described planet wheel, it is characterized in that: the diameter of planet wheel is the radius of sun gear.

3, according to the novel motion of claim 1 described planet wheel, it is characterized in that: can adorn long cranking arm on the wheel of cranking arm, suitably big stroke is on breast wheel and planet wheel are contained in and crank arm.

4, it is characterized in that according to the novel motion of claim 1 described planetary gear train: the cantilever resistance arm is smaller or equal to 2 times of the resistance arm of cranking arm.