CN109937682A - A kind of timing driving system and grain combine inhibiting multiple-roll threshing vibration - Google Patents
A kind of timing driving system and grain combine inhibiting multiple-roll threshing vibration Download PDFInfo
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- CN109937682A CN109937682A CN201910103084.4A CN201910103084A CN109937682A CN 109937682 A CN109937682 A CN 109937682A CN 201910103084 A CN201910103084 A CN 201910103084A CN 109937682 A CN109937682 A CN 109937682A
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Abstract
The present invention provides the timing driving system and grain combine of a kind of inhibition multiple-roll threshing vibration, including at least two coaxial mounted threshing cylinders, engine and timing drive mechanism；The rotation axis of each threshing cylinder is connect by the timing drive mechanism with engine, and the power of engine is transmitted to the rotation axis of each threshing cylinder by timing drive mechanism, rotates synchronously all threshing cylinders.Rotation angle will not generate deviation.Timing drive mechanism includes cogged V-belt and timing gears, since the transmitting of cogged V-belt acts on, eccentric force on threshing cylinder can cancel out each other, when the variation of the factors such as quality of material or revolving speed causes the eccentric force on threshing cylinder to fluctuate, the pulling force that cogged V-belt provides can offset remaining eccentric force, prevent the generation of eccentric vibrating.It solves the problems, such as that existing threshing cylinder generates unbalance vibration in threshing course because being influenced by material, ensure that the stability and threshing performance of threshing cylinder.
Description
Technical field
The invention belongs to grain combine transmission technical fields, and in particular to a kind of that multiple-roll threshing is inhibited to vibrate
Multistage timing driving system and grain combine.
Background technique
In the course of work of threshing cylinder of grain combine harvester, material enters after threshing cylinder can be with its high speed together
Rotation will be produced since the quality of material is relative to the rotation center of threshing cylinder and unbalanced during high speed rotation
Raw eccentric force, destroys the dynamic balancing of threshing cylinder, causes the unbalance vibration of threshing cylinder, to be easy to cause threshing cylinder production
Raw failure.The unbalance vibration for inhibiting threshing cylinder for guaranteeing that the threshing performance of threshing cylinder is vital, and is eliminated
The eccentric force that material high-speed rotation generates is a kind of effective method.
The device and method about threshing cylinder transmission mainly has at present: patent CN201510685909.X has invented one kind
Cylinder of combine harvester transmission device, by adjusting the connection type of input shaft, jackshaft and output shaft in drum drive case,
It realizes and quickly the shift of roller is adjusted the speed.Device and method about timing driving system mainly has: patent
CN201420651379.8 has invented a kind of engine cam timing gear, and camshaft signal disk is direct by fastening bolt
It is mounted on camshaft front end, and adds the diplopore location structure of positioning counterbore using cylinder pin hole, it is simple and practical in structure, it realizes
The accurate transmission of engine.Mainly have about the device and method of rotor vibration damping at present: patent CN201410304622.3 invention
A kind of permanent magnetic and swash that for inhibiting big damping hybrid magnetoresistive Buddhist nun's device of rotor oscillation, which is generated using permanent magnet
The electromagnetic force resultant force that magnetic coil generates controls the vibration of rotor, and reliable performance can be used as rotor in high-speed rotating machine equipment and shake
Dynamic control device；Patent CN201510962484.2 has invented a kind of method for inhibiting oscillation of rotary machine rotor, will be magnetorheological
Elastomer dynamic vibration absorber is fixed on the maximum position of rotor oscillation, and opening magnetic rheology elastic body dynamic vibration absorber system can make
The amplitude of rotor reduces, and inhibits its vibration.
Existing threshing cylinder transmission structures are complicated, and multiple rollers work at the same time in the state of be easy mutual shadow
It rings, so that the vibration of all parts aggravates, influences the service life of threshing cylinder.And existing rotor oscillation damping method is mainly using sensing
Device acquires vibration signal, then inhibits the vibration of rotor by the structures such as dynamic vibration absorber or vibration isolator, device therefor is expensive,
Structure is complicated, measurement process is cumbersome, and grain combine is compact-sized, and operating condition is complicated, and existing equipment is difficult to be mounted on paddy
On object combine harvester, and it is easy to damage.Therefore, it is necessary to design a kind of structure letter for existing multiple-roll grain combine
Single, transmission timing driving system that is accurate, and can effectively inhibiting threshing cylinder to vibrate in threshing course.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of transmission transmission system of inhibition multiple-roll threshing vibration, pass through timing
The rotation axis of each coaxial mounted threshing cylinder is connect by transmission mechanism with engine, and the power of engine passes through timing transmission
Mechanism is transmitted to the rotation axis of each threshing cylinder, rotates synchronously all threshing cylinders, and rotation angle will not generate deviation.Just
When transmission mechanism include cogged V-belt and timing gears, since the transmitting of cogged V-belt acts on, the eccentric force on threshing cylinder can be with
It cancels out each other, when the variation of the factors such as quality of material or revolving speed causes the eccentric force on threshing cylinder to fluctuate, cogged V-belt is mentioned
The pulling force of confession can offset remaining eccentric force, prevent the generation of eccentric vibrating.Existing threshing cylinder is solved in threshing course
It is middle that unbalance vibration is led to the problem of because being influenced by material, it ensure that the stability and threshing performance of threshing cylinder.
Combine the present invention also provides a kind of cereal of timing driving system including the inhibition multiple-roll threshing vibration and receives
Cutting mill solves combined harvester threshing cylinder in threshing course, due to by material impacted with wind or because itself
The phenomenon that imbalance causes axle center constantly to be beated.
The technical solution adopted by the present invention to solve the technical problems is: a kind of timing biography inhibiting multiple-roll threshing vibration
Dynamic system, including
At least two coaxial mounted threshing cylinders；
Engine；
And the rotation axis of each threshing cylinder is connect by timing drive mechanism, the timing drive mechanism with engine, hair
The power of motivation is transmitted to the rotation axis of each threshing cylinder by timing drive mechanism, rotates synchronously all threshing cylinders.
In above scheme, the timing drive mechanism includes several cogged V-belts and timing gears；
The rotation axis of each threshing cylinder is connect by the cogged V-belt by timing gears with engine.
In above scheme, the rotation speed relation of the threshing cylinder should meet n1=n2=n3... .=ni；The threshing cylinder
In material relationship between quality be m1>m2>m3…>mi；In order to guarantee that the centrifugal force that material generates in each threshing cylinder closes
System is F1=F2=F3...=Fi, the radius relationship of the threshing cylinder should meet:
I=1,2,3 ... N, N are integer
Wherein, R1It is material with the radius of turn of the 1st threshing cylinder；
RiIt is material with the radius of turn of threshing cylinder i；
m1For the quality of material on the 1st threshing cylinder；
miFor the quality of material on i-th of threshing cylinder.
In above scheme, as i=2, the centrifugal force of the 1st threshing cylinder is F1, and the centrifugal force of the 2nd threshing cylinder is
F2, F1 and F2 etc. are big and contrary；
As i > 2, the big and mutual angles such as centrifugal force F1, F2, F3...Fi of threshing cylinder are in always are 360 °/N
Form exist, Vector modulation be the equilateral side N shape.
In above scheme, the spacing of the 1st threshing cylinder and the 2nd threshing cylinder is L1, the 2nd threshing cylinder and the
The spacing of 3 threshing cylinders is the i-th threshing cylinder of L2 ... and the spacing of i+1 threshing cylinder is Li, to guarantee each threshing roll
Angle between the centrifugal force that material high-speed rotation generates in cylinder is 360 °/N, and the time for .Li movement that material is in L1, L2 ... answers phase
Deng, and be just equal to threshing cylinder and turn over the time used in 360 °/N, therefore the length of L1, L2 ... Li should meet:
I=1,2,3...N, N are integer
Wherein, RiIt is material with the radius of turn of i-th of threshing cylinder；
LiFor the spacing of threshing cylinder i and threshing cylinder i+1；
π is pi.
In above scheme, the quantity of the threshing cylinder is 3, including threshing cylinder I, threshing cylinder II and threshing cylinder
III；
The timing driving system include cogged V-belt I, cogged V-belt II, cogged V-belt III, cogged V-belt IV, cogged V-belt V,
Timing gears I, timing gears II, timing gears III and timing gears IV；
The timing gears I, timing gears II, timing gears III be separately mounted to threshing cylinder I, threshing cylinder II and
In the rotation axis of threshing cylinder III；The timing gears I, timing gears II, timing gears III are on same axis, described
Timing gears IV is located at immediately below threshing cylinder II；The center of the timing gears I, timing gears III and timing gears IV connect
Line forms equilateral triangle；
The cogged V-belt I connection timing gears I and timing gears II；The cogged V-belt II connection timing gears II with just
When gear III；The cogged V-belt III connection timing gears I and timing gears IV；The cogged V-belt IV connection timing gears
III and timing gears IV；The cogged V-belt V connection engine and timing gears IV.
Further, the resultant force threshing cylinder I suffered in threshing course are as follows:
Wherein, n1For the theoretical rotational speed of threshing cylinder I；
m1For the quality of material on threshing cylinder I；
R1It is material with the radius of turn of threshing cylinder I；
WithActive force of the respectively cogged V-belt I and cogged V-belt III to threshing cylinder I；
The resultant force threshing cylinder II suffered in threshing course are as follows:
Wherein, n2For the theoretical rotational speed of threshing cylinder II；
m2For the quality of material on threshing cylinder II；
R2It is material with the radius of turn of threshing cylinder II；
WithActive force of the respectively cogged V-belt I and cogged V-belt II to threshing cylinder II；
The resultant force threshing cylinder III suffered in threshing course are as follows:
Wherein, n3For the theoretical rotational speed of threshing cylinder III；
m3For the quality of material on threshing cylinder III；
R3It is material with the radius of turn of threshing cylinder III；
WithActive force of the respectively cogged V-belt II and cogged V-belt IV to threshing cylinder III.
Further, the transmission ratio of the cogged V-belt I is 1, makes the eccentric force phase on threshing cylinder I and threshing cylinder II
Mutually cut down；
The transmission ratio of the cogged V-belt II is 1, cuts down the eccentric force on threshing cylinder II and threshing cylinder III mutually；
The cogged V-belt V gives the power transmission of engine to timing gears IV；
The cogged V-belt III is identical with the transmission ratio of cogged V-belt IV, drives threshing cylinder I synchronous with threshing cylinder III
Rotation, and the centrifugal force that do not cancel out each other on threshing cylinder I and threshing cylinder III is cut down by the pulling force of cogged V-belt.
In above scheme, the centrifugal force that material generates on the threshing cylinder I, threshing cylinder II and threshing cylinder III divides
It Wei not F1、F2And F3, F1、F2And F3Always in etc. big and mutual angle be 360 °/N in the form of exist, Vector modulation be it is equilateral
Triangle.
A kind of combine harvester, including the timing driving system for inhibiting multiple-roll threshing vibration.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention is influenced to generate eccentric vibrating in the threshing cylinder course of work by the effect of material centrifugal force
Problem devises a kind of timing driving system that threshing cylinder threshing can be inhibited to vibrate, and whole system is by cogged V-belt and just
When gear drive, timing driving system structure is simple, noise is small, and makes the more accurate stabilization of the revolving speed of each threshing cylinder,
It may be implemented to rotate synchronously.
2. each threshing cylinder can rotate synchronously in the present invention, the angle of the material in each roller and centre of the drum's line
It will not change in threshing course, therefore the angle that material generates centrifugal force will not change, each threshing of cogged V-belt
Roller is connected, so that the centrifugal force of material joins end to end, to form an equilateral N angular, can cancel out each other, effectively inhibit
The threshing of threshing cylinder is vibrated.
3. the cogged V-belt III and cogged V-belt IV in the present invention can be respectively threshing cylinder provide direction be lower right and
The pulling force of lower left, when the revolving speed of quality of material in threshing course or threshing cylinder occur small-scale fluctuation when, material from
The mental and physical efforts equilateral triangle to be formed that joins end to end is destroyed, and the pulling force that two cogged V-belts provide can be with the centrifugation not being cancelled
Power real-time change can still guarantee that the threshing vibration of threshing cylinder is suppressed.
4. the radius of threshing cylinder is different in the present invention, is constantly reduced in threshing course according to seed, lead to object
The characteristics of material quality is constantly reduced, has redesigned the radius of each threshing cylinder, has kept material high-speed rotating with N number of threshing cylinder
The centrifugal force generated in the process is identical, convenient for cancelling out each other between centrifugal force.Spacing between roller is also redesigned, and is guaranteed
The angle that material and the line at threshing cylinder center are formed in each threshing cylinder is always 360 °/N.
5. the present invention is compared with traditional threshing cylinder vibration-proof structure, structure is simple, is easy to make, cheap, is not easy
Damage, is significantly adjusted without the structure to threshing cylinder or rack, directly utilizes the timing transmission system of threshing cylinder
System inhibits threshing vibration, greatly reduces production cost, reduces unnecessary manpower and material resources.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is combine harvester multiple-roll timing Multi-stage transmission schematic diagram.
Fig. 2 is transmission system schematic diagram.
Fig. 3 is additional eccentric mass principle of compositionality figure.
Fig. 4 is threshing cylinder force analysis figure.
Fig. 5 is threshing cylinder spacing schematic diagram.
Fig. 6 is ideally threshing cylinder eccentric force composite diagram.
Fig. 7 is threshing cylinder eccentric force and cogged V-belt pulling force composite diagram under fluctuation status.
In figure, 1- threshing cylinder I, 2- threshing cylinder II, 3- threshing cylinder III, 4- engine, 5- transmission system, 501-
Cogged V-belt I, 502- cogged V-belt II, 503- cogged V-belt III, 504- cogged V-belt IV, 505- cogged V-belt V, 506- timing gears
I, 507- timing gears II, 508- timing gears III, 509- timing gears IV, 6- material.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The orientation or positional relationship of the instructions such as " thickness ", "upper", "lower", " axial direction ", " radial direction ", "vertical", "horizontal", "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with
Explicitly or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or
Two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
Embodiment 1
A kind of timing driving system inhibiting multiple-roll threshing vibration, including at least two coaxial mounted threshing cylinders,
Engine 4 and timing drive mechanism 5；The rotation axis of each threshing cylinder is connect by the timing drive mechanism 5 with engine 4,
The power of engine 4 is transmitted to the rotation axis of each threshing cylinder by timing drive mechanism 5, makes all threshing cylinders are synchronous to turn
It is dynamic.
The timing drive mechanism 5 includes several cogged V-belts and timing gears；The cogged V-belt will by timing gears
The rotation axis of each threshing cylinder is connect with engine 4.
The rotation speed relation of the threshing cylinder should meet n1=n2=n3... .=ni；The matter of material in the threshing cylinder
Magnitude relation is m1>m2>m3…>mi；In order to guarantee that the centrifugal force relationship that material generates in each threshing cylinder is F1=F2=
F3...=Fi, the radius relationship of the threshing cylinder should meet:
I=1,2,3 ... N, N are integer
Wherein, R1It is material with the radius of turn of the 1st threshing cylinder；
RiIt is material with the radius of turn of threshing cylinder i；
m1For the quality of material on the 1st threshing cylinder；
miFor the quality of material on i-th of threshing cylinder.
As i=2, the centrifugal force of the 1st threshing cylinder is F1, and the centrifugal force of the 2nd threshing cylinder is F2, F1 and F2 etc.
It is big and contrary；
As i > 2, the big and mutual angles such as centrifugal force F1, F2, F3...Fi of threshing cylinder are in always are 360 °/N
Form exist, Vector modulation be the equilateral side N shape.
The spacing of 1st threshing cylinder and the 2nd threshing cylinder is L1, the 2nd threshing cylinder and the 3rd threshing cylinder
Spacing be the spacing of the i-th threshing cylinder of L2 ... and i+1 threshing cylinder be Li, for material high-speed in each threshing cylinder of guarantee
The angle rotated between the centrifugal force generated is 360 °/N, the time of material is in L1, L2 ... .Li movement answer it is equal, and just etc.
The time used in 360 °/N is turned in threshing cylinder, therefore the length of L1, L2 ... Li should meet:
I=1,2,3...N, N are integer
Wherein, RiIt is material with the radius of turn of i-th of threshing cylinder；
LiFor the spacing of threshing cylinder i and threshing cylinder i+1；
π is pi.
Embodiment 2
As shown in Figure 1, the present embodiment 2 and the difference of embodiment 1 essentially consist in, inhibition multiple-roll described in the present embodiment 2 is de-
The quantity of the threshing cylinder of the timing driving system of grain vibration is 3, including threshing cylinder I1, threshing cylinder II2 and threshing roll
Cylinder III3.The threshing cylinder I1 is located on the left of threshing cylinder II2；The threshing cylinder III3 is located on the right side of threshing cylinder II2；
The engine 4 is located at the lower left threshing cylinder I1；The transmission system 5 is by threshing cylinder I1, threshing cylinder II2, threshing roll
Cylinder III3 is connected with engine 4, guarantees that each threshing cylinder rotates synchronously, and rotation angle will not generate deviation, timing transmission system
System cancels out each other the eccentric vibrating on threshing cylinder I1, threshing cylinder II2 and threshing cylinder III3.
As shown in Fig. 2, the timing driving system 5 includes cogged V-belt I501, cogged V-belt II502, cogged V-belt
III503, cogged V-belt IV504, cogged V-belt V505, timing gears I506, timing gears II507, timing gears III508 and just
When gear IV509；The timing gears I506, timing gears II507, timing gears III508 are separately mounted to threshing cylinder
In the rotation axis of I1, threshing cylinder II2 and threshing cylinder III3；The timing gears I506, timing gears II507, timing gear
Wheel III508 is on same axis, and the timing gears IV509 is located at immediately below threshing cylinder II2；The timing gears
The line of centres of I506, timing gears III508 and timing gears IV509 form equilateral triangle.The cogged V-belt I501 connects
Meet timing gears I506 and timing gears II507；The cogged V-belt II502 connection timing gears II507 and timing gears
III508；The cogged V-belt III503 connection timing gears I506 and timing gears IV509；The cogged V-belt IV504 connection
Timing gears III508 and timing gears IV509；The cogged V-belt V505 connection engine 4 and timing gears IV509.
As shown in figure 3, material 6 is after entering threshing cylinder I1, threshing cylinder II2 and threshing cylinder III3, in threshing
In company with threshing cylinder, high speed rotation, the centrifugal force of material will lead to threshing cylinder and generates eccentric vibrating Cheng Zhonghui together.
As shown in figure 4, the resultant force threshing cylinder I1 suffered in threshing course are as follows:
Wherein, n1For the theoretical rotational speed of threshing cylinder I1；
m1For the quality of material on threshing cylinder I1；
R1It is material with the radius of turn of threshing cylinder I1；
WithActive force of the respectively cogged V-belt I501 and cogged V-belt III503 to threshing cylinder I1；
The resultant force threshing cylinder II2 suffered in threshing course are as follows:
Wherein, n2For the theoretical rotational speed of threshing cylinder II2；
m2For the quality of material on threshing cylinder II2；
R2It is material with the radius of turn of threshing cylinder II2；
WithActive force of the respectively cogged V-belt I501 and cogged V-belt II502 to threshing cylinder II2；
The resultant force threshing cylinder III3 suffered in threshing course are as follows:
Wherein, n3For the theoretical rotational speed of threshing cylinder III3；
m3For the quality of material on threshing cylinder III3；
R3It is material with the radius of turn of threshing cylinder III3；
WithActive force of the respectively cogged V-belt II502 and cogged V-belt IV504 to threshing cylinder III3.
The transmission ratio of the cogged V-belt I501 is 1, cuts the eccentric force on threshing cylinder I1 and threshing cylinder II2 mutually
Subtract；The transmission ratio of the cogged V-belt II502 is 1, cuts down the eccentric force on threshing cylinder II2 and threshing cylinder III3 mutually；
The cogged V-belt V505 gives the power transmission of engine 4 to timing gears IV509；The cogged V-belt III503 and cogged V-belt
The transmission ratio of IV504 is identical, and threshing cylinder I1 and threshing cylinder III3 is driven to rotate synchronously, and cuts by the pulling force of cogged V-belt
Subtract the centrifugal force that do not cancel out each other on threshing cylinder I1 and threshing cylinder III3.
Since seed constantly falls off in threshing course, into threshing cylinder I1, threshing cylinder II2 and threshing cylinder III3
In quality of material successively reduce, the relationship between quality of material is m1>m2>m3；To guarantee F1=F2=F3, the radius pass of threshing cylinder
System should meet:
I=1,2
Wherein, R1It is material with the radius of turn of threshing cylinder I1；
RiIt is material with the radius of turn of threshing cylinder i；
m1For the quality of material on threshing cylinder I1；
miFor the quality of material on threshing cylinder i.
As shown in figure 5, the rotation speed relation of the threshing cylinder I1, threshing cylinder II2 and threshing cylinder III3 should meet n1
=n2=n3；
The spacing of the threshing cylinder I1 and threshing cylinder II2 is L1, the spacing of threshing cylinder II2 and threshing cylinder III3
For L2, to guarantee that the angle in each threshing cylinder between the centrifugal force of material high-speed rotation generation is 360 °/3=120 °, material
Answer in L1 with the time that L2 of section move it is equal, and be just equal to threshing cylinder turn over 120 ° used in the time, therefore L1 and L2
Length should meet:
I=1,2
Wherein, RiIt is material with the radius of turn of threshing cylinder i；
LiFor the spacing of threshing cylinder i and threshing cylinder i+1；
π is pi.
As shown in fig. 6, the centrifugal force that material generates on the threshing cylinder I1, threshing cylinder II2 and threshing cylinder III3
Respectively F1、F2And F3, F1、F2And F3Always in etc. big and mutual angle be 120 ° in the form of exist, Vector modulation be it is equilateral
Triangle, N is the quantity of threshing cylinder, therefore F1、F2And F3It can cancel out each other completely in the ideal situation.
As shown in fig. 7, the revolving speed meeting of the threshing cylinder I1, threshing cylinder II2, threshing cylinder III3 and engine 4
There is small fluctuation, quality of material also will appear a small amount of deviation, when the revolving speed of quality of material or threshing cylinder fluctuates,
F1、F2And F3The equilateral triangle to be formed that joins end to end is destroyed, and cogged V-belt III503 and cogged V-belt IV504 is provided at this time
Pulling force F15And F35The centrifugal force not being cancelled can be cut down, the eccentric vibrating of threshing cylinder is avoided.
The specific implementation process of the present embodiment are as follows: engine 4 delivers power to timing gears by cogged V-belt V505
IV509, cogged V-belt III503 and cogged V-belt IV504 drive threshing cylinder I1 and threshing cylinder III3 using identical transmission ratio
Rotation, cogged V-belt I501 and cogged V-belt II502 cooperation timing gears I506, timing gears II507 and timing gears III508,
Drive threshing cylinder II2 synchronous rotary, cogged V-belt I501 and cogged V-belt together with threshing cylinder I1 and threshing cylinder III3
The transmission ratio of II502 is 1.Material is moved from threshing cylinder I1 to threshing cylinder III3 in threshing course.In material from threshing roll
During cylinder I1 move to threshing cylinder II2, the angle of threshing cylinder rotation is 120 °, similarly in material from threshing cylinder
During II2 is moved to threshing cylinder III3, the angle of threshing cylinder rotation is 120 °, material and rotation center in each roller
The angle that line is formed is always 120 °.In ideal conditions, the centrifugal force of material passes through cogged V-belt in three threshing cylinders
The transmitting of I501 and cogged V-belt II502 acts on, and joins end to end to form an equilateral triangle, so as to cancel out each other.When de-
When the factors such as the revolving speed or quality of material of grain roller fluctuate, if without the auxiliary of other external force, on three threshing cylinders
Centrifugal force cannot be completely counterbalanced by, so that eccentric vibrating occur.Cogged V-belt III503 and cogged V-belt IV504 is respectively to de- at this time
Grain roller provides the pulling force that lower right and lower left are directed toward in direction, and the size real-time change of pulling force, it is ensured that it is remaining from
Mental and physical efforts are offset in real time, avoid the eccentric vibrating of threshing cylinder.
Embodiment 3
A kind of combine harvester, the timing including the vibration of inhibition multiple-roll threshing described in embodiment 1 or embodiment 2 pass
Dynamic system, therefore there is beneficial effect described in Examples 1 and 2, details are not described herein again.
Although not each embodiment only includes one it should be appreciated that this specification describes according to various embodiments
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiments of understanding.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope that they are not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change
It should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of timing driving system for inhibiting multiple-roll threshing vibration, which is characterized in that including
At least two coaxial mounted threshing cylinders；
Engine (4)；
With timing drive mechanism (5), the timing drive mechanism (5) connects the rotation axis of each threshing cylinder and engine (4)
It connects, the power of engine (4) is transmitted to the rotation axis of each threshing cylinder by timing drive mechanism (5), makes all threshing rolls
Cylinder rotates synchronously.
2. the timing driving system according to claim 1 for inhibiting multiple-roll threshing vibration, which is characterized in that the timing
Transmission mechanism (5) includes several cogged V-belts and timing gears；
The rotation axis of each threshing cylinder is connect by the cogged V-belt by timing gears with engine (4).
3. the timing driving system according to claim 2 for inhibiting multiple-roll threshing vibration, which is characterized in that
The rotation speed relation of the threshing cylinder meets n1=n2=n3... .=ni；The relationship between quality of material in the threshing cylinder
For m1>m2>m3…>mi；In order to guarantee that the centrifugal force relationship that material generates in each threshing cylinder is F1=F2=F3...=
Fi, the radius relationship satisfaction of the threshing cylinder:
I=1,2,3 ... N, N are integer
Wherein, R1It is material with the radius of turn of the 1st threshing cylinder；
RiIt is material with the radius of turn of threshing cylinder i；
m1For the quality of material on the 1st threshing cylinder；
miFor the quality of material on i-th of threshing cylinder.
4. the timing driving system according to claim 3 for inhibiting multiple-roll threshing vibration, which is characterized in that
As i=2, the centrifugal force of the 1st threshing cylinder is F1, the centrifugal force of the 2nd threshing cylinder be F2, F1 and F2 etc. it is big and
It is contrary；
As i > 2, shape that the big and mutual angles such as centrifugal force F1, F2, F3...Fi of threshing cylinder are in always are 360 °/N
Formula exists, and Vector modulation is the equilateral side N shape.
5. the timing driving system according to claim 4 for inhibiting multiple-roll threshing vibration, which is characterized in that
The spacing of 1st threshing cylinder and the 2nd threshing cylinder is L1, between the 2nd threshing cylinder and the 3rd threshing cylinder
It is Li away from the spacing for the i-th threshing cylinder of L2 ... and i+1 threshing cylinder, to guarantee material high-speed rotation in each threshing cylinder
Angle between the centrifugal force of generation is 360 °/N, and the time for .Li movement that material is in L1, L2 ... is equal, and is equal to threshing cylinder
The time used in 360 °/N is turned over, therefore the length of L1, L2 ... Li meet:
I=1,2,3...N, N are integer
Wherein, RiIt is material with the radius of turn of i-th of threshing cylinder；
LiFor the spacing of threshing cylinder i and threshing cylinder i+1；
π is pi.
6. the timing driving system according to claim 2 for inhibiting multiple-roll threshing vibration, which is characterized in that the threshing
The quantity of roller is 3, including threshing cylinder I (1), threshing cylinder II (2) and threshing cylinder III (3)；
The timing driving system (5) includes cogged V-belt I (501), cogged V-belt II (502), cogged V-belt III (503), tooth form V
Band IV (504), cogged V-belt V (505), timing gears I (506), timing gears II (507), timing gears III (508) and timing
Gear IV (509)；
The timing gears I (506), timing gears II (507), timing gears III (508) are separately mounted to threshing cylinder I
(1), in the rotation axis of threshing cylinder II (2) and threshing cylinder III (3)；The timing gears I (506), timing gears II
(507), timing gears III (508) is on same axis, under the timing gears IV (509) is located at threshing cylinder II (2) just
Side；The line of centres of the timing gears I (506), timing gears III (508) and timing gears IV (509) forms equilateral triangle
Shape；
Cogged V-belt I (501) connection timing gears I (506) and timing gears II (507)；The cogged V-belt II (502) is even
Connect timing gears II (507) and timing gears III (508)；The cogged V-belt III (503) connection timing gears I (506) with just
When gear IV (509)；Cogged V-belt IV (504) connection timing gears III (508) and timing gears IV (509)；The tooth
Shape V band V (505) connection engine (4) and timing gears IV (509).
7. the timing driving system according to claim 6 for inhibiting multiple-roll threshing vibration, which is characterized in that the threshing
Resultant force roller I (1) suffered in threshing course are as follows:
Wherein, n1For the theoretical rotational speed of (1) threshing cylinder I；
m1For the quality of material on threshing cylinder I (1)；
R1It is material with the radius of turn of (1) threshing cylinder I；
WithActive force of the respectively cogged V-belt I (501) and cogged V-belt III (503) to (1) threshing cylinder I；
The threshing cylinder II (2) resultant force suffered in threshing course are as follows:
Wherein, n2For the theoretical rotational speed of (2) threshing cylinder II；
m2For the quality of material on threshing cylinder II (2)；
R2It is material with the radius of turn of (2) threshing cylinder II；
WithActive force of the respectively cogged V-belt I (501) and cogged V-belt II (502) to (2) threshing cylinder II；
The threshing cylinder III (3) resultant force suffered in threshing course are as follows:
Wherein, n3For the theoretical rotational speed of (3) threshing cylinder III；
m3For the quality of material on threshing cylinder III (3)；
R3It is material with the radius of turn of (3) threshing cylinder III；
WithActive force of the respectively cogged V-belt II (502) and cogged V-belt IV (504) to (3) threshing cylinder III.
8. the timing driving system according to claim 6 for inhibiting multiple-roll threshing vibration, which is characterized in that
The transmission ratio of the cogged V-belt I (501) is 1；
The transmission ratio of the cogged V-belt II (502) is 1；
The cogged V-belt V (505) gives the power transmission of engine (4) to timing gears IV (509)；
The cogged V-belt III (503) is identical with the transmission ratio of cogged V-belt IV (504), drives threshing cylinder I (1) and threshing roll
Cylinder III (3) is rotated synchronously.
9. the timing driving system according to claim 6 for inhibiting multiple-roll threshing vibration, which is characterized in that the threshing
The centrifugal force that material generates on roller I (1), threshing cylinder II (2) and threshing cylinder III (3) is respectively F1、F2And F3, F1、F2With
F3Always in etc. big and mutual angle be 360 °/N in the form of exist, Vector modulation is equilateral triangle.
10. a kind of combine harvester, which is characterized in that including inhibition multiple-roll threshing described in any one of claim 1-9
The timing driving system of vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910103084.4A CN109937682B (en) | 2019-02-01 | 2019-02-01 | Timing transmission system for inhibiting multi-roller threshing vibration and grain combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910103084.4A CN109937682B (en) | 2019-02-01 | 2019-02-01 | Timing transmission system for inhibiting multi-roller threshing vibration and grain combine harvester |
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| CN109937682B CN109937682B (en) | 2021-08-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100105338A (en) * | 2009-03-17 | 2010-09-29 | 이세키노우키가부시키가이샤 | Combine |
| KR20110103293A (en) * | 2010-03-12 | 2011-09-20 | 이세키노우키가부시키가이샤 | Combine |
| CN204180555U (en) * | 2014-09-02 | 2015-03-04 | 江苏大学 | Large feed quantity crawler type cuts crossing current multiple-roll combine |
| CN105519304A (en) * | 2016-01-14 | 2016-04-27 | 金华职业技术学院 | Power transmission device for combine harvester |
-
2019
- 2019-02-01 CN CN201910103084.4A patent/CN109937682B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100105338A (en) * | 2009-03-17 | 2010-09-29 | 이세키노우키가부시키가이샤 | Combine |
| KR20110103293A (en) * | 2010-03-12 | 2011-09-20 | 이세키노우키가부시키가이샤 | Combine |
| CN204180555U (en) * | 2014-09-02 | 2015-03-04 | 江苏大学 | Large feed quantity crawler type cuts crossing current multiple-roll combine |
| CN105519304A (en) * | 2016-01-14 | 2016-04-27 | 金华职业技术学院 | Power transmission device for combine harvester |
Non-Patent Citations (3)
| Title |
|---|
| 刘元林: "《机械设计》", 31 August 2017, 华中科技大学出版社 * |
| 卢小锐: "《发动机曲轴及正时带系统的多体动力学研究》", 《发动机曲轴及正时带系统的多体动力学研究》 * |
| 柯列斯尼克: "《动平衡与静平衡》", 31 October 1958, 机械工业出版社 * |
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