CN111357498A - Transverse axial flow threshing device, control method thereof and harvester - Google Patents
Transverse axial flow threshing device, control method thereof and harvester Download PDFInfo
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- CN111357498A CN111357498A CN202010191120.XA CN202010191120A CN111357498A CN 111357498 A CN111357498 A CN 111357498A CN 202010191120 A CN202010191120 A CN 202010191120A CN 111357498 A CN111357498 A CN 111357498A
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- axial flow
- balancing device
- radial
- flow threshing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/58—Control devices; Brakes; Bearings
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Abstract
The invention provides a transverse axial flow threshing device, a control method thereof and a harvester, wherein the transverse axial flow threshing device comprises a transverse axial flow threshing cylinder, a plurality of radial balancing devices, an axial balancing device, a transverse axial flow cover plate, a gravure screen, a displacement sensor and a controller; the invention combines the working mode of the transverse axial flow threshing cylinder with the passive balance technology and the electromagnetic induction principle, and the device can realize the real-time axial and radial balance of rice in the threshing process, greatly reduces the vibration generated by threshing of the threshing cylinder, ensures that the threshing cylinder is in a relatively balanced and stable working state in the working process, thereby reducing the damage of seeds of the rice in the threshing process, and ensures the quality of the threshed rice seeds.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a transverse axial flow threshing device, a control method thereof and a harvester.
Background
The working environment of the combine harvester is severe and the working condition is complex, and the threshing cylinder is always in an unbalanced state due to the winding of rice stalks and the falling of grains in the threshing process when the threshing cylinder works. In the threshing process, the seeds are gradually separated along the concave sieve of the threshing cylinder, so that the damping between the threshing cylinder and the top cover is larger than the damping between the threshing cylinder and the concave sieve, and the threshing cylinder vibrates radially when different damping exists up and down. Meanwhile, when the rice stalks move along the axial direction in the threshing process, the threshing cylinder is subjected to time-varying uneven force in the axial direction, so that the threshing cylinder also vibrates in the axial direction. Therefore, the threshing effect is poor due to the radial vibration and the axial vibration in the rice threshing process, meanwhile, the damage to rice grains is greatly influenced, and particularly, when the threshed grains need to be used as seeds, if the threshing cylinder vibrates greatly, the inner parts of the rice grains are damaged and cannot germinate. Therefore, the balance and vibration reduction of the threshing cylinder during working are particularly important in order to reduce the vibration of the threshing cylinder during working and reduce the damage degree of rice grains.
At present, the design and the improvement of a threshing device of a combine harvester are mainly as follows: the Chinese patent with application publication number CN202889999U and name of 'cutting longitudinal flow pattern threshing cylinder power transmission structure of full-feeding combine' discloses a cutting longitudinal flow pattern threshing cylinder power transmission structure of full-feeding combine, which comprises a transverse threshing cylinder, a bevel gear transmission box and a longitudinal threshing cylinder, wherein a single-side power transmission mode is changed into a two-side transmission mode, chain transmission is adopted between the transverse threshing cylinder and the longitudinal threshing cylinder, and the transmission is completed by using a transmission shaft and a transmission joint sleeve to be matched with a bevel gear transmission box, so that the transmission stability is improved, and the vibration of the machine is reduced; the Chinese patent with application publication number CN2648798, entitled "coaxial core different speed double threshing cylinder device of combine harvester" discloses a coaxial core different speed double threshing cylinder device of combine harvester, which is composed of a front threshing cylinder and a rear threshing cylinder which are adjacent but not connected at the front end and the rear end and have the same or similar diameter, and adopts the double cylinders with different rotating speeds to thresh, thereby effectively solving the contradiction that the reaping threshing rate and the crushing rate of the combine harvester are difficult to be well considered for a long time; the application publication number is CN205336924U, the name is "prevent blocking rubbing formula threshing cylinder device" Chinese utility model discloses a prevent blocking rubbing formula threshing cylinder device, should prevent blocking rubbing formula threshing cylinder device sets up spiral deflector and centrifugation in import and export and throw and send the trend that the board can fine assurance is threshing the bar in the process of threshing, set up simultaneously and rub the board device and get rid of the hammer device and all be the formula of rubbing when threshing the bar, can rotate along with threshing cylinder body rotation centrifugal force effect down and reduced the damage to grain, the quality of grain has been improved.
The invention can improve the working stability of the threshing cylinder of the combine harvester and reduce the breakage rate of the grains, but can not fundamentally reduce the vibration problem of the threshing device, and the problems of unbalance in the working process of the threshing device, vibration generated by the unbalance and grain damage can not be effectively solved.
Disclosure of Invention
The present invention aims to solve at least one of the above technical problems to a certain extent. The invention provides a transverse axial flow threshing device and a control method thereof, which combine the working mode of a transverse axial flow threshing cylinder with a passive balance technology and an electromagnetic induction principle, can realize the axial and radial real-time balance of rice in the threshing process, and greatly reduce the vibration of the threshing cylinder generated by threshing so as to ensure that the threshing cylinder is in a relatively balanced and stable working state in real time in the working process, thereby reducing the damage of seeds of the rice in the threshing process, ensuring the quality of the threshed rice seeds, and having good stability and strong reliability.
The invention also provides a harvester comprising the transverse axial flow threshing device.
The technical scheme of the invention is as follows: a transverse axial flow threshing device comprises a transverse axial flow threshing cylinder, a plurality of radial balancing devices, an axial balancing device, a transverse axial flow cover plate, a gravure screen, a displacement sensor and a controller;
the radial balancing device is axially arranged in the transverse axial flow threshing cylinder, the outer ring of the radial balancing device is connected with the inner wall of the transverse axial flow threshing cylinder, and the radial balancing device is used for enabling the transverse axial flow threshing cylinder to generate radial balance; the axial balancing device is arranged on an axial central line inside the transverse axial flow threshing cylinder, the transverse axial flow threshing cylinder can drive the radial balancing device to rotate around the axial balancing device, the transverse axial flow cover plate is positioned above the transverse axial flow threshing cylinder, and the gravure screen is positioned below the transverse axial flow threshing cylinder;
the radial balancing device has magnetism, the axial balancing device is electrified with current, and the radial balancing device and the axial balancing device can generate electromagnetic induction; the displacement sensor is used for detecting a displacement signal of the radial balancing device on the axial balancing device; the controller is respectively connected with the displacement sensor and the axial balancing device, and controls the current of the axial balancing device according to the displacement signal, so that the transverse axial flow threshing cylinder generates axial balance.
In the above scheme, the transverse axial flow threshing cylinder comprises a first bearing, a cylinder rotating shaft and a threshing element;
the cylinder and the cylinder rotating shaft are integrally formed, and the first bearing is connected with the cylinder rotating shaft and used for mounting the transverse axial flow threshing cylinder on the rack; the threshing elements are uniformly distributed on the outer circumference of the roller cylinder.
In the above scheme, the radial balancing device comprises a rotating disc, a steel ball and a second bearing;
the rotary disc comprises a circular ring, and the periphery of the circular ring is connected with the inner wall of the transverse axial flow threshing cylinder; a hollow ring is arranged in the periphery of the circular ring, at least two steel balls are arranged in the hollow ring, and the steel balls can roll along the inner circumference of the hollow ring;
the second bearing is arranged at the circle center of the circular ring and is positioned between the rotating disc and the supporting shaft.
Furthermore, a solid part is arranged between the circle center of the rotating disk and the hollow ring and has magnetism.
In the above scheme, the axial balancing device comprises a plurality of groups of fixed discs, an iron core, an electromagnetic coil winding, a support shaft, a third bearing and a power amplifier;
the fixed disc is arranged on the supporting shaft; each group of the fixed disks is two and symmetrically distributed on two sides of the radial balancing device; the iron cores are respectively arranged on the fixed discs, the electromagnetic coil winding is wound on the iron cores, one end of the support shaft is used for being connected with the rack, and the other end of the support shaft is connected with the rotary shaft of the roller through a third bearing;
the controller is connected with the power amplifier; the power amplifier is connected with the electromagnetic coil winding.
In the above scheme, the controller and the power amplifier are respectively mounted on the support shaft.
In the above scheme, the electrified coils on the same group of fixed disks in the axial balancing device are connected in series, and the electrified coils on different groups of fixed disks are connected in parallel.
In the above scheme, the number of the groups of the fixed disks is the same as the number of the radial balancing devices.
A harvester comprises the transverse axial flow threshing device.
A method of controlling the transverse axial flow threshing apparatus according to the above, comprising the steps of:
and (3) radial balance adjustment: when the transverse axial flow threshing cylinder works, the radial balancing device can be driven to rotate around the axial balancing device, and when the working rotating speed of the transverse axial flow threshing cylinder exceeds the critical rotating speed, the transverse axial flow threshing cylinder generates radial balance through the rotation of steel balls in the radial balancing device;
axial balance adjustment: the radial balancing device is magnetic, the axial balancing device is electrified with current, the radial balancing device and the axial balancing device can generate electromagnetic induction, the displacement sensor is used for detecting a displacement signal of the radial balancing device on the axial balancing device and sending the displacement signal to the controller, and the controller controls the current of the axial balancing device according to the displacement signal, so that the electromagnetic force between the radial balancing device and the axial balancing device is adjusted, the position of the radial balancing device is further adjusted, and the transverse axial flow threshing cylinder generates axial balance.
Compared with the prior art, the invention has the beneficial effects that:
in the threshing process of the transverse axial flow threshing cylinder, the seeds continuously fall off along the circumference of the cylinder, so that the radial direction of the cylinder is unbalanced, and the vibration is large and the seeds are seriously crushed due to real-time change; the invention realizes the radial balance of the threshing cylinder by utilizing the passive balance principle of the rotary disc, the balance ring is arranged in the cylinder, when the working rotating speed of the transverse axial flow threshing cylinder exceeds a first-order critical rotating speed, the real-time balance of a rotor system is automatically realized through the rotation of the steel ball, and the working stability of the threshing cylinder is improved.
In the rice threshing process, the axial vibration of the threshing cylinder can be caused by the axial movement of the stalks along the threshing cylinder, so that the threshing cylinder has axial unbalance and bounce.
The invention realizes the real-time balance of the threshing cylinder in the working process, including the axial and radial real-time balance, can effectively reduce the vibration generated in the threshing process, reduce the seed crushing probability caused by the vibration of the threshing cylinder in the threshing process, reduce the influence on the frame and improve the working stability of the whole machine.
The invention can effectively realize the balance of the slender roller and improve the working stability of the slender roller at high rotating speed by the combined operation of the plurality of axial balancing devices and the radial balancing devices, cancels the slender rotating shaft of the transverse axial flow threshing roller and replaces the slender rotating shaft with a fixed supporting shaft, effectively prevents the problems of the deformation and the bending of the rotating shaft of the transverse axial flow threshing roller and the like at high rotating speed, improves the working stability of the device,
the invention has simple structure, lower cost, convenient installation and high reliability, effectively reduces the radial unbalance of the threshing cylinder in real time through the sphere balancing device, has rapid and accurate balancing effect and has obvious advantages compared with an active balancing device. The threshing device has good stability and high working efficiency, and can be widely applied to the existing transverse axial flow combine harvester for harvesting rice seeds on the market.
Drawings
FIG. 1 is a partial cross-sectional view of the interior of a transverse axial flow threshing cylinder according to one embodiment of the present invention;
FIG. 2 is a right side view of a transverse axial flow threshing apparatus according to one embodiment of the present invention;
FIG. 3 is a schematic view of a radial balancing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view of an axial balancing apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of axial balance control according to an embodiment of the present invention;
fig. 6 is a schematic view of the arrangement of the iron cores in the axial balancing device according to an embodiment of the present invention.
In the figure, 1, a transverse axial flow threshing cylinder, 101, a first bearing, 102, a cylinder, 103, a cylinder rotating shaft, 104, a threshing element, 2, a radial balancing device, 201, a rotating disk, 202, a steel ball, 203, a second bearing, 3, an axial balancing device, 301, a fixed disk, 302, an iron core, 303, a coil, 304, a supporting shaft, 305, a third bearing, 306, a displacement sensor, 307, a controller, 308, a power amplifier, 4, a threshing cylinder cover plate, 5, a threshing cylinder intaglio screen, 6, a frame and 7, an engine power input end.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Fig. 1 shows a preferred embodiment of the transverse-axial flow threshing device, which comprises a transverse-axial flow threshing cylinder 1, a plurality of radial balancing devices 2, an axial balancing device 3, a transverse-axial flow cover plate 4, a gravure screen 5, a displacement sensor 306 and a controller 307.
The radial balancing device 2 is axially arranged in the transverse axial flow threshing cylinder 1, the outer ring of the radial balancing device 2 is connected with the inner wall of the transverse axial flow threshing cylinder 1, and the radial balancing device 2 is used for enabling the transverse axial flow threshing cylinder 1 to generate radial balance; the axial balancing device 3 is arranged on an axial central line inside the transverse axial flow threshing cylinder 1, the transverse axial flow threshing cylinder 1 can drive the radial balancing device 2 to rotate around the axial balancing device 3, the transverse axial flow cover plate 4 is located above the transverse axial flow threshing cylinder 1, and the intaglio screen 5 is located below the transverse axial flow threshing cylinder 1.
The radial balance device 2 has magnetism, the axial balance device 3 is electrified with current, and the radial balance device 2 and the axial balance device 3 can generate electromagnetic induction; the displacement sensor 306 is used for detecting a displacement signal of the radial balance device 2 on the axial balance device 3; the controller 307 is respectively connected with the displacement sensor 306 and the axial balancing device 3, and the controller 307 controls the current of the axial balancing device 3 according to the displacement signal, so as to adjust the electromagnetic force between the radial balancing device 2 and the axial balancing device 3, and further adjust the position of the radial balancing device 2, and enable the transverse axial flow threshing cylinder 1 to generate axial balance.
The radial balancing device 2 can be arranged in the transverse axial flow threshing cylinder 1 in a welding mode and is connected with the axial balancing device 3 through a second bearing 203; the axial balancing device 3 extends out of the transverse axial flow threshing cylinder 1 through a supporting shaft 304 and is welded on the frame 6; according to the passive balance principle, when the transverse axial flow threshing cylinder 1 works and the rotating speed is higher than the critical rotating speed, the steel balls 202 in the radial balancing device 2 can automatically adjust the position according to the unbalance generated by the winding of the stalks and the separation of the seeds when the transverse axial flow threshing cylinder 1 works, so as to realize the integral balance of the transverse axial flow threshing cylinder in the radial direction, under the action of the guide plate and the rice stalks, the transverse axial flow threshing cylinder 1 can generate axial force to cause unbalance in the axial direction, the axial balancing device 3 detects the displacement of the magnetic rotating disc 201 on the axial balancing device 3 through the displacement sensor 306, when the difference between the axial balancing device and the reference position is found, the controller 307 adjusts the current level in the electromagnetic coil windings through the power amplifier 308, thereby generating an electromagnetic force opposing the axial force, and achieving axial balance of the entire device.
As shown in fig. 2, according to the present embodiment, the transverse axial flow threshing cylinder 1 preferably comprises a first bearing 101, a cylinder barrel 102, a cylinder shaft 103 and a threshing element 104; the drum cylinder 102 and the drum rotating shaft 103 are integrally formed, and the first bearing 101 is connected with the drum rotating shaft 103 and used for mounting the transverse axial flow threshing drum 1 on the rack 6, so that the transverse axial flow threshing drum 1 can rotate and support the whole device; the inner part of one end of the roller rotating shaft 103 is of a partially hollow structure and is used for realizing the purpose that the supporting shaft 304 extends out of the inner part so as to be connected with the rack 6, and the other end of the roller rotating shaft is of a solid structure and is used as a motive power input end 7 to realize the operation of the whole device. The drum cylinder 102 is used for mounting threshing elements 104 to realize the threshing function. The threshing elements 104 are uniformly distributed on the outer circumference of the roller cylinder 102, and the threshing elements 104 are made of high-density polyethylene and are adhered to the roller cylinder 102 by glue for a circle.
According to the present embodiment, preferably, the transverse axial flow threshing cylinder 1 is hollow for installing the radial balancing device 2 and the axial balancing device 3, and the cylinder 102 and the cylinder rotating shaft 103 are connected into a whole by welding, so as to realize the rotation of the whole device.
As shown in fig. 3, according to the present embodiment, preferably, the radial balancing device 2 includes a rotating disk 201, a steel ball 202, and a second bearing 203; the rotating disc 201 comprises a circular ring, the outer ring of the circular ring is welded on the inner wall of the roller cylinder 102 and is integrally formed with the transverse axial flow threshing roller 1, and the periphery of the circular ring is connected with the inner wall of the transverse axial flow threshing roller 1; a hollow ring is arranged in the periphery of the circular ring, at least two steel balls 202 are arranged in the hollow ring, and the steel balls 202 can roll along the inner circumference of the hollow ring; the second bearing 203 is installed at the center of the circular ring, and the second bearing 203 is located between the rotating disc 201 and the support shaft 304, so as to realize the relative rotation between the two.
The center of the rotating disc 201 and the hollow ring are solid and have magnetism, the magnetic force can be generated by interaction with the magnetic poles of the axial balancing device 3, the inner part of the outer ring of the rotating disc is of a hollow structure, the steel balls 202 can freely rotate around the outline of the outer ring freely in the inner part of the outer ring, and the sliding groove for the rolling of the steel balls 202 in the inner part is smooth and has no defects.
The transverse axial flow threshing cylinder 1 has the advantages that in the threshing process, due to the fact that grains continuously fall off along the circumference of the cylinder, unbalance exists in the radial direction, and real-time change is achieved, so that vibration is large and grains are broken seriously; the invention realizes the radial balance of the threshing cylinder by utilizing the passive balance principle of the rotary disc, the balance ring is arranged in the cylinder, when the working rotating speed of the transverse axial flow threshing cylinder exceeds a first-order critical rotating speed, the real-time balance of a rotor system is automatically realized through the rotation of the steel ball, and the working stability of the threshing cylinder is improved.
As shown in fig. 4, 5 and 6, according to the present embodiment, preferably, the axial balancing device 3 includes several sets of fixed disks 301, an iron core 302, an electromagnetic coil winding 303, a support shaft 304, a third bearing 305 and a power amplifier 308; the fixed disc 301 is mounted on a support shaft 304; each group of the fixed disks 301 is provided with two fixed disks, and the two fixed disks are symmetrically distributed on two sides of the radial balancing device 2; the iron cores 302 are respectively arranged on the fixed disc 301, the electromagnetic coil winding 303 is wound on the iron cores 302, the electromagnetic coil winding 303 is electrified, one end of the support shaft 304 is used for being connected with the rack 6, and the other end of the support shaft is connected with the rotary drum shaft 103 through a third bearing 305, so that relative rotation between the support shaft and the rotary drum shaft is realized; the controller 307 is connected with the power amplifier 308; the power amplifier 308 is connected to the solenoid winding 303. The displacement sensor 306 may be mounted on the fixed disk 301 for monitoring the displacement of the rotating disk 201, and when the displacement occurs, a signal is transmitted to the controller 307, and the controller 307 adjusts the current in the electromagnetic coil winding through the power amplifier 308, so as to generate an electromagnetic force opposite to the axial force, thereby achieving the axial balance of the whole device.
In the rice threshing process, the axial vibration of the threshing cylinder can be caused by the axial movement of the stalks along the threshing cylinder, so that the threshing cylinder is unbalanced and jumped in the axial direction, the axial balancing device is arranged in the threshing cylinder by utilizing the electromagnetic induction principle, the balance of the axial force is realized by the plurality of radial balancing devices and the axial balancing devices, the real-time feedback and adjustment are realized by the controller 307, the stability of the balance of the threshing cylinder in the axial direction is ensured, the long and thin rotating shaft of the transverse axial flow threshing cylinder is cancelled, and the fixed mounting of the immovable supporting shaft 304 is replaced, so that the problems of deformation and bending of the rotating shaft of the transverse axial flow threshing cylinder 1 at high rotating speed are effectively prevented, and the working stability of the device is improved. The invention realizes the real-time balance of the threshing cylinder in the working process, including the axial and radial real-time balance, can effectively reduce the vibration generated in the threshing process, and reduces the probability of seed crushing caused by the vibration of the threshing cylinder in the threshing process.
According to the present embodiment, preferably, the displacement sensor 306 and the controller 307 may be connected by a wire, the controller 307 and the power amplifier 308 may be connected by a control line, the power amplifier 308 is connected with the electromagnetic coil winding 303, and the controller 307 and the power amplifier 308 are mounted on the support shaft 304 for controlling the current magnitude in real time.
According to the present embodiment, preferably, in the axial balancing device 3, the energized coils 303 on the same set of fixed disks 301 are connected in series, the electromagnetic coil windings 303 on different sets of fixed disks 301 are connected in parallel, and the coil windings on different sets of fixed disks 301 adjust the magnitude of the current according to the magnitude of the displacement of the rotating disk 201, so as to balance the axial force.
According to this embodiment, the number of groups of fixed disks 301 preferably corresponds to the number of radial balancing devices 2. The number of the iron cores 302 can be 4, and the iron cores are uniformly distributed on one circle of the fixed disk 301, and are wound with electromagnetic coil windings 303 for balancing axial force in interaction with the rotating disk 201.
The invention has simple structure, lower cost, convenient installation and high reliability, effectively reduces the radial unbalance of the threshing cylinder in real time through the sphere balancing device, has rapid and accurate balancing effect and has obvious advantages compared with an active balancing device. The threshing device has good stability and high working efficiency, and can be widely applied to the existing transverse axial flow combine harvester for harvesting rice seeds on the market.
Example 2
A harvester comprising the transverse axial flow threshing device of embodiment 1, thus having the advantages of embodiment 1, and will not be described herein.
Example 3
A method of controlling the transverse axial flow threshing apparatus according to embodiment 1, comprising the steps of:
and (3) radial balance adjustment: when the transverse axial flow threshing cylinder 1 works, the radial balancing device 2 can be driven to rotate around the axial balancing device 3, and when the working rotating speed of the transverse axial flow threshing cylinder 1 exceeds a first-order critical rotating speed, the transverse axial flow threshing cylinder 1 generates radial balance through the rotation of the steel balls 202 in the radial balancing device 2;
axial balance adjustment: the radial balance device 2 has magnetism, the axial balance device 3 is electrified with current, the radial balance device 2 and the axial balance device 3 can generate electromagnetic induction, the displacement sensor 306 is used for detecting a displacement signal of the radial balance device 2 on the axial balance device 3 and sending the displacement signal to the controller 307, the controller 307 compares the detected displacement signal with a preset displacement signal, and when a difference occurs, the controller 307 controls the current of the axial balance device 3, so that the electromagnetic force between the radial balance device 2 and the axial balance device 3 is adjusted, the position of the radial balance device 2 is further adjusted, and the transverse axial flow threshing cylinder 1 generates axial balance.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A transverse axial flow threshing device is characterized by comprising a transverse axial flow threshing cylinder (1), a plurality of radial balancing devices (2), an axial balancing device (3), a transverse axial flow cover plate (4), a concave screen (5), a displacement sensor (306) and a controller (307);
the radial balancing device (2) is axially arranged in the transverse axial flow threshing cylinder (1), the outer ring of the radial balancing device (2) is connected with the inner wall of the transverse axial flow threshing cylinder (1), and the radial balancing device (2) is used for enabling the transverse axial flow threshing cylinder (1) to generate radial balance; the axial balancing device (3) is arranged on an axial central line inside the transverse axial flow threshing cylinder (1), the transverse axial flow threshing cylinder (1) can drive the radial balancing device (2) to rotate around the axial balancing device (3), the transverse axial flow cover plate (4) is positioned above the transverse axial flow threshing cylinder (1), and the intaglio screen (5) is positioned below the transverse axial flow threshing cylinder (1);
the radial balance device (2) is magnetic, the axial balance device (3) is electrified with current, and the radial balance device (2) and the axial balance device (3) can generate electromagnetic induction; the displacement sensor (306) is used for detecting a displacement signal of the radial balance device (2) on the axial balance device (3); the controller (307) is respectively connected with the displacement sensor (306) and the axial balancing device (3), and the controller (307) controls the current of the axial balancing device (3) according to the displacement signal, so that the transverse axial flow threshing cylinder (1) generates axial balance.
2. The transverse axial flow threshing device according to claim 1, characterized in that the transverse axial flow threshing cylinder (1) comprises a first bearing (101), a cylinder (102), a cylinder shaft (103) and a threshing element (104);
the cylinder (102) and the cylinder rotating shaft (103) are integrally formed, and the first bearing (101) is connected with the cylinder rotating shaft (103) and used for mounting the transverse axial flow threshing cylinder (1) on a rack; the threshing elements (104) are evenly distributed on the outer circumference of the roller cylinder (102).
3. Transverse axial flow threshing device according to claim 1, characterised in that the radial balancing device (2) comprises a rotating disc (201), steel balls (202) and a second bearing (203);
the rotating disc (201) comprises a circular ring, and the periphery of the circular ring is connected with the inner wall of the transverse axial flow threshing cylinder (1); a hollow ring is arranged in the periphery of the circular ring, at least two steel balls (202) are arranged in the hollow ring, and the steel balls (202) can roll along the inner circumference of the hollow ring;
the second bearing (203) is arranged at the center of the circular ring, and the second bearing (203) is positioned between the rotating disc (201) and the support shaft (304).
4. The transverse axial flow threshing device according to claim 3, characterized in that the center of the rotating disc (201) and the hollow ring are solid and magnetic.
5. Transverse axial flow threshing apparatus according to claim 1, characterised in that the axial balancing means (3) comprises several groups of fixed discs (301), iron cores (302), electromagnetic coil windings (303), support shafts (304), third bearings (305) and power amplifiers (308);
the fixed disc (301) is arranged on the supporting shaft (304); each group of the fixed discs (301) is two and are symmetrically distributed on two sides of the radial balancing device (2); the iron cores (302) are respectively arranged on the fixed discs (301), the electromagnetic coil windings (303) are wound on the iron cores (302), one end of the support shaft (304) is used for being connected with the rack, and the other end of the support shaft is connected with the rotary drum shaft (103) through a third bearing (305);
the controller (307) is connected with a power amplifier (308); the power amplifier (308) is connected to the electromagnetic coil winding (303).
6. The transversal axial flow threshing apparatus according to claim 1, wherein the controller (307) and the power amplifier (308) are mounted on the support shaft (304), respectively.
7. Transverse axial flow threshing apparatus according to claim 1, characterised in that the live coils (303) on the same set of fixed discs (301) in the axial balancing device (3) are connected in series, and the live coils (303) on different sets of fixed discs (301) are connected in parallel.
8. Transverse axial flow threshing device according to claim 1, characterised in that the number of groups of fixed discs (301) corresponds to the number of radial balancing devices (2).
9. A harvester comprising a transverse axial flow threshing device according to any of claims 1 to 8.
10. A method of controlling a transverse axial flow threshing apparatus according to any of claims 1 to 8, characterised by the steps of:
and (3) radial balance adjustment: when the transverse axial flow threshing cylinder (1) works, the radial balancing device (2) can be driven to rotate around the axial balancing device (3), and when the working rotating speed of the transverse axial flow threshing cylinder (1) exceeds the critical rotating speed, the transverse axial flow threshing cylinder (1) generates radial balance through the rotation of steel balls (202) in the radial balancing device (2);
axial balance adjustment: the radial balancing device (2) is magnetic, the axial balancing device (3) is electrified with current, the radial balancing device (2) and the axial balancing device (3) can generate electromagnetic induction, the displacement sensor (306) is used for detecting a displacement signal of the radial balancing device (2) on the axial balancing device (3) and sending the displacement signal to the controller (307), and the controller (307) controls the current of the axial balancing device (3) according to the displacement signal, so that the electromagnetic force between the radial balancing device (2) and the axial balancing device (3) is adjusted, the position of the radial balancing device (2) is further adjusted, and the transverse axial flow threshing cylinder (1) generates axial balance.
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| CN112913482A (en) * | 2021-01-22 | 2021-06-08 | 江苏大学 | Threshing device with single-action adjustable toothed bar and dynamic balance adjusting method thereof |
| WO2023151002A1 (en) * | 2022-02-08 | 2023-08-17 | 江苏大学 | Self-adaptive balancing device suitable for threshing cylinder of combine harvester and control strategy thereof |
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