CN109923959B - Dual-vibration drag reduction subsoiler - Google Patents
Dual-vibration drag reduction subsoiler Download PDFInfo
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- CN109923959B CN109923959B CN201910291728.7A CN201910291728A CN109923959B CN 109923959 B CN109923959 B CN 109923959B CN 201910291728 A CN201910291728 A CN 201910291728A CN 109923959 B CN109923959 B CN 109923959B
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Abstract
The invention belongs to the technical field of agricultural machinery, and particularly relates to a double-vibration anti-drag subsoiler which comprises a main frame, a double-vibration device, a transmission device, a plurality of subsoilers and a plurality of self-excitation vibration spring mechanisms matched with the subsoilers in quantity, wherein the transmission device is arranged on the main frame and transmits power of a hydraulic system of an external machine to the double-vibration device, the double-vibration device comprises a forced vibration connecting rod, a bionic forced vibration device and a forced vibration spring mechanism, the forced vibration connecting rod is connected with the frame through the forced vibration spring mechanism, the bionic forced vibration device is fixed on the forced vibration connecting rod to generate vertical vibration, and the self-excitation vibration spring mechanisms are fixed on the forced vibration connecting rod at equal intervals and are connected with the subsoilers through end parts. The invention greatly improves the deep loosening effect, reduces the working resistance and increases the working efficiency.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a double-vibration anti-drag subsoiler.
Background
In conventional farming, the soil structure in the field can slowly change to form a plough bottom layer due to the fact that long-term farming is often subjected to multiple times of squeezing of the soil by agricultural implements and accompanied by deposition of slime in the process of precipitation. The consistency of the plough bottom layer is larger, the total porosity is small, runoff, poor water permeability, poor air permeability, difficult root system lower edge and other adverse phenomena can be caused, and the material transfer, energy transfer and root system downward extension in soil are seriously hindered. Therefore, manual measures are needed to deeply loosen the plough so as to achieve the purpose of reforming or eliminating the plough bottom layer.
The subsoilers in the current market mostly adopt rigid structures, and exert large force to utilize a subsoiler to forcedly destroy a plough bottom layer. However, the traditional subsoiling method has extremely poor soil loosening effect because the soil stirring coefficient is small and the soil loosening range is limited during the working process of agricultural implements, vertical shallow trenches can be formed after the agricultural implements work, and the working resistance is large. In addition, in the soil breaking process, the soil blocks cannot be broken frequently, and the soil blocks need to be broken through a subsequent addition operation process. Greatly reducing the farming efficiency. In order to improve the subsoiling effect and improve the subsoiling efficiency, vibratory subsoilers have been developed. The vibration type subsoiling mode converts the traditional subsoiling mode from a one-dimensional subsoiling mode to a working mode in a two-dimensional space. Effectively reduces the working resistance of deep scarification and improves the deep scarification effect. But its mode of operation also has some negative effects. The vibration type subsoiling can be divided into two categories of forced vibration subsoiling and self-excited vibration subsoiling. The self-vibration subsoiling is an excitation source with a certain pretightening force installed on a subsoiling working part, and in the working process, the continuously-changed soil resistance received by the machine tool can be correspondingly compressed and extended to make the subsoiler vibrate. However, the deep scarification has the defects that the machine structure is complex, machines and tools are easy to deviate and incline, working parts are easy to loosen and the like, so that the stretching amount of the deep scarification vibration cannot be ensured, the working stability is poor, and the tilling depth is inconsistent. The forced vibration deep-loosening excitation source is from a tractor, the tractor transmits power to a vibration mechanism in a deep-loosening machine, and the vibration mechanism drives a deep-loosening shovel to perform deep-loosening work at fixed frequency and amplitude. However, forced vibration subsoiling can have a periodic vibration to impact and compact broken soil, and the forced subsoiling easily causes fatigue damage to the subsoiler and other working parts, thereby reducing the service life of the machine.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a double-vibration anti-drag subsoiler, which can greatly improve the subsoiling effect, reduce the working resistance and increase the working efficiency. In operation, the hydraulic system of the tractor transmits power to the rear double-vibration anti-drag subsoiler. When the double-vibration drag reduction subsoiler carries out subsoiling work, the hydraulic motor drives the bionic forced vibrator to work. The bionic forced vibrator vibrates to drive the working part to break the soil with the frequency and amplitude of the biological buried. A self-excited vibration spring mechanism is arranged behind the bionic forced vibrator. When the subsoiler works under a certain amplitude frequency condition, the subsoiler can be properly compressed, stretched and adjusted according to the soil resistance of the surrounding environment, so that on one hand, the impact compaction effect on the broken soil is reduced, and on the other hand, the working resistance of the machine tool is further reduced.
The invention is thus achieved, a double vibration drag reduction subsoiler comprising:
main frame, dual vibration device, transmission, a plurality of subsoiler and with a plurality of self-excited vibration spring mechanism of the supporting quantity of subsoiler, transmission sets up on the main frame, gives dual vibration device with the hydraulic system's of external machine power transmission, dual vibration device is including forcing vibration connecting rod, bionical forced vibration device and forced vibration spring mechanism, be connected through forced vibration spring mechanism between forced vibration connecting rod and the frame, bionical forced vibration device is fixed and is produced vibration from top to bottom on forcing the vibration connecting rod, self-excited vibration spring mechanism is equidistant to be fixed force on the vibration connecting rod and through end connection subsoiler.
Furthermore, the bionic forced vibration device comprises a bionic forced vibrator shell, a driving shaft and a driven shaft are arranged in the bionic forced vibrator shell, a meshing gear is arranged between the driving shaft and the driven shaft, bionic vibration exciters are respectively installed on the driving shaft and the driven shaft, a bionic contour plate is fixed at the positions, corresponding to the positions of the two bionic vibration exciters, of the bionic forced vibrator shell and is perpendicular to the driving shaft, irregular holes with mirror symmetry are formed in the bionic contour plate and correspond to the positions of the two bionic vibration exciters respectively, and the driving shaft and the driven shaft rotate to drive the bionic vibration exciters to rotate and contact with the boundaries of the irregular holes.
Furthermore, the bionic vibration exciter comprises an inner core and a vibration exciter shell, the inner core is embedded into the vibration exciter shell in a clearance fit mode and can move up and down, and when the bionic vibration exciter rotates, the inner core is limited by the boundary of the irregular hole to be separated from the rotation center and be close to the rotation center within a certain range.
Furthermore, the curve contour of the irregular through hole is divided into an abcd connecting line and an a ' b ' c'd ' connecting line, wherein the abcd and the a ' b ' c'd are symmetrical about a central line, an abcd connecting line peripheral contour curve is composed of an a-b section curve, a b-c section curve, a c-d section curve and a d-a section curve, and rounding treatment is performed between each section of curve, so that the following conditions are met: establishing a rectangular coordinate system Y1aX1In a rectangular coordinate system Y1aX1The curve of the section a-b conforms to the following equation:
taking a as a base point, and taking a rectangular coordinate system Y1aX1Translating to a point b, and rotating 90 degrees clockwise to obtain a rectangular coordinate system Y2bX2In a rectangular coordinate system Y2bX2The curve of the section b-c conforms to the following equation:
taking b as a base point, and taking a rectangular coordinate system Y2bX2Translating to a point c, and rotating 90 degrees clockwise to obtain a rectangular coordinate system Y3cX3. In a rectangular coordinate system Y3cX3The curve of the section c-d conforms to the following equation:
taking c as a base point, and taking a rectangular coordinate system Y3cX3Translating to a point d, and rotating clockwise by 90 degrees to obtain a rectangular coordinate system Y4dX4In a rectangular coordinate system Y4dX4The curve of the section d-a conforms to the following equation:
furthermore, the peripheral outline of the inner core comprises an A-B section curve, a B-C section curve, a C-D section curve, an E-F section curve, an F-A section curve and a tail end, the tail end is embedded into the vibration exciter shell, and the curves meet the following conditions:
curve of A-B:
curve of B-C segment:
curve of C-D:
E-F section curve:
curve of segment F-A:
furthermore, the subsoiler is connected with the forced vibration connecting rod through a connecting frame, the self-excited vibration spring mechanism comprises a group of first U-shaped connecting plates fixed at one end of the connecting frame on the side of the forced vibration connecting rod, a group of second U-shaped connecting plates and the subsoiler are in clearance fit through pins to realize rotation of the subsoiler around the pins, a sleeve is fixed in the first U-shaped connecting plates through a first fixing end, a mandrel is installed in the sleeve, a second fixing end is fixed at the other end of the mandrel and then is in clearance fit with the second U-shaped connecting plates through the pins, and a compression spring is sleeved outside the sleeve.
Furthermore, the forced vibration connecting rods are arranged on the rack in parallel, and the subsoiler is connected to the backward forced vibration connecting rod according to the movement direction during working.
Furthermore, the number of the double vibration devices is two, the central symmetry is arranged on two sides of the main frame, a transmission device is arranged in the center of the main frame and comprises a hydraulic motor, a bevel gear transmission box and a universal shaft, the input end of the hydraulic motor is connected with a hydraulic system, the output end of the hydraulic motor is connected with the input end of the bevel gear transmission box through a transmission shaft, the two output ends of the bevel gear transmission box are connected with the universal shaft, and the other end of the universal shaft is connected with the double vibration devices.
Compared with the prior art, the invention has the beneficial effects that:
the invention transmits power to a rear double-vibration anti-drag subsoiler through a hydraulic system of a tractor. When the double-vibration drag reduction subsoiler carries out subsoiling work, the hydraulic motor drives the bionic forced vibrator to work. The bionic forced vibrator vibrates to drive the working part to break the soil with the frequency and amplitude of the biological buried. A self-excited vibration spring mechanism is arranged behind the bionic forced vibrator. When the subsoiler works under a certain amplitude frequency condition, the subsoiler can be properly compressed, stretched and adjusted according to the soil resistance of the surrounding environment, so that on one hand, the impact compaction effect on the broken soil is reduced, and on the other hand, the working resistance of the machine tool is further reduced.
Drawings
FIG. 1 is a perspective view of a double-vibration drag reduction subsoiler;
FIG. 2 is a front view of a dual vibratory drag reducing subsoiler;
FIG. 3 is a top view of the bionic forced vibration device;
FIG. 4 is a front view of a self-exciting vibration spring unit;
FIG. 5 is a left side view of the self-exciting vibration spring apparatus;
FIG. 6 is a bottom view of the self-oscillating spring unit;
FIG. 7 is a front view of a biomimetic contoured plate;
FIG. 8 is a front view of a bionic exciter;
wherein: 1 machine frame, 2 traction frame, 3 main machine frame, 4 depth limiting device, 5 support frame, 6 depth limiting wheel, 7 depth limiting wheel connecting support, 8 double-vibration device, 9 bionic forced vibration device, 10 bionic forced vibrator shell, 11 meshing gear, 12 tapered roller bearing, 13 driven shaft, 14 bionic vibration exciter, 15 bionic contour plate, 16 shaft sleeve, 17 bearing cover, 18 skeleton oil seal, 19 driving shaft, 20 first forced vibration connecting rod, 21 forced vibration spring mechanism, 22 self-excited vibration spring mechanism, 23 second forced vibration connecting rod, 24-1 first U-shaped connecting plate, 24-2 second U-shaped connecting plate, 25 compression spring, 26 positioning pin, 27-1 first large pin, 27-2 second large pin, 28-1 first fixed end, 28-2 second fixed end, 29 sleeve, 30 mandrel, 31 transmission device, 32 hydraulic motors, 33 bevel gear gearboxes, 34 universal shafts, 35 subsoilers, 36 subsoiler handles, 37 subsoiler tips, 38 subsoiler wings, 39 connecting frames, 40 front vertical beams, 41 rear vertical beams, 42 small vertical beams, 43 small cross beams, 44 vertical beams, 45 front cross beams, 46 middle cross beams, 47 rear cross beams, 48 bionic exciter cores and 49 exciter shells.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, the double-vibration drag reduction subsoiler of the present invention comprises a frame 1, a double-vibration device 8, a transmission device 31 and a subsoiler 35; the depth limiting device is characterized in that the frame 1 consists of a traction frame 2, a main frame 3, a depth limiting device 4 and a support frame 5, the traction frame 2 is welded in the center of the front side of the main frame 3, the depth limiting device 4 and the support frame 5 are respectively welded on two sides of the main frame 3, and the support frame is welded on the rear side of the depth limiting device 3; the main frame 3 includes two vertical beams 44, a front beam 45, a middle beam 46, and a rear beam 47. Two vertical beams 44 are respectively welded on two sides of the cross beam 45, and three cross beams are respectively welded between the two vertical beams 44 according to the front, middle and rear uniform distribution, so that a 'Chinese character ri' arrangement mode is formed. The traction frame 2 is welded to the front side center of the front cross beam 45. Two front vertical beams 40 are welded at the central symmetrical positions above the front cross beam 45, and a small cross beam 43 is welded above the two front vertical beams. The rear sides of two ends of the small cross beam 43 are respectively welded with a small vertical beam 42. A rear vertical beam 41 is arranged at the lower side of each small vertical beam. The lower ends of the rear uprights are welded to the middle cross member 46. The depth limiting device 4 consists of a depth limiting wheel 6 and a depth limiting wheel connecting bracket 7. The depth wheel connecting bracket 7 is respectively welded on the outer center lines of the two vertical beams 44. The depth wheel connecting bracket 7 is positioned by a bolt to adjust the height and is connected with the depth wheel 4 by the bolt; the transmission 31 comprises a hydraulic motor 32, a bevel gear box 33 and a cardan shaft 34. The input end of the hydraulic motor 32 is connected with a tractor hydraulic system. The output end of the hydraulic motor 32 is connected with the input end of a bevel gear gearbox 33 through a transmission shaft, the bevel gear gearbox 33 is fixed above a middle cross beam 46 through bolt connection, two output ends of the bevel gear gearbox 33 are connected with a universal shaft 34, the other end of the universal shaft 34 is connected with a double-vibration device 8, the double-vibration device comprises two forced vibration connecting rods, a bionic forced vibration device and a forced vibration spring mechanism, and the other end of the universal shaft 34 is connected with the bionic forced vibration device of the double-vibration device 8.
The middle cross beam and the rear cross beam are respectively connected with a first forced vibration connecting rod 20 and a second forced vibration connecting rod 23 through four forced vibration spring mechanism connections, each double vibration device is fixed on the first forced vibration connecting rod and the second forced vibration connecting rod, the first forced vibration connecting rod 20 is driven when the double vibration device vibrates up and down, the second forced vibration connecting rod 23 is matched with the forced vibration spring mechanism to vibrate, the forced vibration connecting rods are respectively fixed at the front and the rear parts below the bionic forced vibration device 9 through bolts, the forced vibration spring mechanisms 21 are respectively installed at the left and the right sides below the forced vibration connecting rods (20, 23), the forced vibration spring mechanisms can enable working parts at the upper ends of the machines to be in a vibration state, and the main frame at the lower ends of the forced vibration spring mechanisms keeps still, so that the whole machine is prevented from vibrating in the working process, causing damage to the main frame to tractor connection. 4 self-excited vibration spring mechanisms 23 are uniformly distributed behind the second forced vibration connecting rod 23 by using bolts. A subsoiler 35 is arranged below the self-excited vibration spring mechanism 22; the subsoiler 35 is composed of a subsoiler handle 36, a subsoiler tip 37, a subsoiler wing 38 and a subsoiler connecting frame 39; the self-excited vibration spring mechanism 22 is connected with a subsoiler handle connecting frame 39 through bolts. A subsoiler handle 36 is arranged below one end of the subsoiler handle connecting frame through a bolt. The subsoiler handle is characterized in that a subsoiler tip 37 is arranged at the tail end of the subsoiler handle, and a subsoiler wing 38 is connected and arranged on the rear upper side of the subsoiler tip 37 through a bolt.
Referring to fig. 3, the bionic forced vibration device 9 comprises a bionic forced vibrator shell 10, a meshing gear 11, a tapered roller bearing 12, a driven shaft 13, a bionic vibration exciter 14, a shaft sleeve 16, a bearing cover 17, a framework oil seal 18 and a driving shaft 19. The bionic forced vibrator shell 10 has a circular through hole on the surface into which the driving shaft 19 is inserted. The bionic forced vibrator shell 10 is internally welded with a bionic contour plate 15 which is perpendicular to a driving shaft or a driven shaft, the bionic contour plate 15 is provided with two irregular holes which are symmetrically arranged on a mirror surface and respectively pass through the driving shaft and the driven shaft, a pair of meshing gears 11 is installed in the driving shaft 19, the driven shaft 13 is installed in another gear in the meshing gears 11, the driving shaft 19 and the driven shaft 13 are arranged at the same side of the meshing gears 11, a bionic vibration exciter 14 is installed at the position of the irregular holes of the bionic contour plate, and the driving shaft and the driven shaft drive the bionic vibration exciter 14 to rotate along the boundary of the irregular holes of the bionic contour plate.
Referring to fig. 8, the bionic exciter comprises a bionic exciter core 48 and an exciter housing 49, the bionic exciter core is embedded in the exciter housing and is in clearance fit with the exciter housing and can move up and down, and when the bionic exciter rotates, the bionic exciter core is limited by the boundary of the irregular hole within a certain range to be separated from and close to the rotation center. The bionic vibration exciter 14 is limited through the boundary of the irregular hole of the bionic contour plate. When the bionic vibration exciter rotates around the shaft, the inner core of the vibration exciter is in clearance fit with the outer shell of the vibration exciter, and the inner core of the vibration exciter can be pulled out of the outer shell of the vibration exciter. And in the working process, the top end of the inner core of the vibration exciter is in contact with the boundary of the irregular hole in the bionic contour plate, so that the inner core is prevented from being separated from the shell. The vibration exciter shell and the vibration exciter inner core of the invention play the role of an eccentric block. The inner core of the vibration exciter is prone to being separated from the rotation center under the action of centrifugal force in the rotation process, but due to the limitation of the irregular holes, when the inner core of the vibration exciter is separated from the rotation center, the inner core is close to the rotation center, so that the gravity center of the inner core is close to the rotation center, and the gravity center of the eccentric block is close to the rotation center. The bionic contour curve is formed according to the back contour shape of the soil-entering insect, so that the vibration frequency and the vibration mode of the vibration exciter are more consistent with the soil-entering and soil-breaking. The working efficiency is improved, and the working resistance is reduced.
Referring to fig. 7, the curve contour of the irregular through hole on the bionic contour plate built in the forced vibrator housing 10 at the installation position of the bionic exciter 14 is divided into an abcd connecting line and a ' b ' c'd ' connecting line, wherein the abcd and the a ' b ' c'd are symmetrical about the central line. The abcd connecting line peripheral outline curve is composed of a-b section curve, a b-c section curve, a c-d section curve and a d-a section curve, and rounding treatment is performed between every two sections of curves. The curve meets the following conditions: establishing a rectangular coordinate system Y1aX1In a rectangular coordinate system Y1aX1The curve of the section a-b conforms to the following equation:
taking a as a base point, and taking a rectangular coordinate system Y1aX1Translating to a point b, and rotating 90 degrees clockwise to obtain a rectangular coordinate system Y2bX2. In a rectangular coordinate system Y2bX2The curve of the section b-c conforms to the following equation:
taking b as a base point, and taking a rectangular coordinate system Y2bX2Translating to a point c, and rotating 90 degrees clockwise to obtain a rectangular coordinate system Y3cX3. In a rectangular coordinate system Y3cX3The curve of the section c-d conforms to the following equation:
taking c as a base point, and taking a rectangular coordinate system Y3cX3Translating to a point d, and rotating clockwise by 90 degrees to obtain a rectangular coordinate system Y4dX4. In a rectangular coordinate system Y4dX4Middle, d-a segment curvilinearsThe following equations are combined:
referring to fig. 8, the bionic exciter 14 is composed of an exciter shell 49 and a bionic exciter core 48, and the peripheral contour of the bionic exciter core 48 is composed of an a-B section curve, a B-C section curve, a C-D section curve, an E-F section curve, an F-a curve and a tail end. The tail end is embedded in the vibration exciter shell 49, and the two are in clearance fit and can freely move up and down. Wherein: curve of A-B:
curve of B-C segment:
curve of C-D:
E-F section curve:
curve of segment F-A:
the shape of the top end of the vibration exciter inner core is designed according to the shape of the wild pig head soil-contacting part, so that the part of the vibration exciter inner core, which is contacted with the bionic contour plate in the working process, has good resistance reduction and friction performance.
Referring to fig. 4 and fig. 5 and fig. 6, the subsoiler is connected with the forced vibration connecting rod 23 through a connecting frame 39, the self-excited vibration spring mechanism comprises a group of first U-shaped connecting plates 24-1 fixed at one end of the connecting frame 39 at the side of the forced vibration connecting rod, a group of second U-shaped connecting plates 24-2 and the subsoiler are in clearance fit through pins to realize rotation of the subsoiler around the pins, a sleeve 29 is fixed in the first U-shaped connecting plates through a first fixing end 28-1, a mandrel 30 is installed in the sleeve 29, the second fixing end 28-2 is fixed at the other end of the mandrel 30 and then is in clearance fit with the second U-shaped connecting plates through a first large pin 27-1, and a compression spring 25 is sleeved outside the sleeve. The two ends of the compression spring 25 are both limited by fixing ends, a positioning pin 26 is arranged at the center of the mandrel 30 and the sleeve 29 for positioning, the positioning pin 26 is in interference fit with the mandrel 30 and the sleeve 29, the connecting frame 39 is in clearance fit with the subsoiler 35 through a second large pin 27-2, and the subsoiler 35 can rotate.
The principle of the invention is as follows: when the double-vibration drag reduction subsoiler works, a tractor hydraulic system drives a bevel gear gearbox to work through a hydraulic motor, and the bevel gear gearbox drives a bionic forced vibration device to work through a universal shaft. The soil-penetrating working part performs soil breaking work in two vibration modes of forced vibration of the bionic forced vibration device and self-excited vibration of the self-excited vibration spring device on the working condition.
When the double-vibration drag reduction subsoiler moves forward to work, a hydraulic system of the tractor inputs power to the hydraulic motor, and the hydraulic motor starts to work. The hydraulic motor transmits power to a bevel gear gearbox, and the bevel gear gearbox transmits the power to the bionic forced vibration devices on two sides through universal shafts on two ends of an output shaft. The bionic forced vibration device comprises a driving shaft and a driven shaft, the driving shaft and the driven shaft transmit power through a meshing gear, and the driving shaft and the driven shaft are respectively provided with a bionic vibration exciter. The driving shaft and the driven shaft rotate to drive the bionic vibration exciter to rotate. The bionic vibration exciter rotates to cause the whole bionic forced vibration device to vibrate, so that the self-excited vibration spring device and the soil-entering working part are driven to move at a certain frequency and amplitude, the bionic vibration exciter drives the forced vibration device to vibrate up and down according to the back outline of the insect, the back of the forced vibration device is connected with the self-excited vibration device and the subsoiler, and the self-excited vibration device and the subsoiler also vibrate up and down according to the back outline of the insect. The working resistance in operation is different at every moment, and the self-excited vibration is extended and compressed to different degrees according to the working resistance instantaneously received in operation and the compression spring 25, so that the front and the back of the self-excited vibration vibrate deeply. The two vibrations are superimposed to form the final vibration.
The distance between the gravity center and the rotation center of the bionic vibration exciter is controlled according to the irregular holes of the bionic contour plate and the centrifugal force of the inner core of the bionic vibration exciter, so that the vibration frequency and the vibration amplitude of the forced vibration device are controlled. And the compression spring controls the frequency and amplitude of the self-excited vibration device. In the process of the working part moving with a certain frequency and amplitude, the resistance of the surrounding soil is constantly changed, and the change of the resistance of the soil causes the compression springs in the self-excited vibration spring device to extend and compress in different degrees, so that the working part generates secondary vibration adapting to the working condition of the working part, and the vibration deep loosening is assisted.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A dual vibration drag reduction subsoiler, characterized in that it comprises:
the double-vibration device comprises a forced vibration connecting rod, a bionic forced vibration device and a forced vibration spring mechanism, wherein the forced vibration connecting rod is connected with the frame through the forced vibration spring mechanism, the bionic forced vibration device is fixed on the forced vibration connecting rod to generate vertical vibration, and the self-excitation vibration spring mechanisms are fixed on the forced vibration connecting rod at equal intervals and are connected with the subsoiler through the end parts;
the bionic forced vibration device comprises a bionic forced vibrator shell, a driving shaft and a driven shaft which are arranged in the bionic forced vibrator shell, a meshing gear is arranged between the driving shaft and the driven shaft, bionic vibration exciters are respectively installed on the driving shaft and the driven shaft, a bionic contour plate is fixed at the positions, corresponding to the positions of the two bionic vibration exciters, of the bionic forced vibrator shell and is perpendicular to the driving shaft, irregular holes with mirror symmetry are formed in the bionic contour plate and correspond to the positions of the two bionic vibration exciters respectively, and the driving shaft and the driven shaft rotate to drive the bionic vibration exciters to rotate and contact with the boundaries of the irregular holes.
2. A subsoiler according to claim 1, wherein said biomimetic exciter comprises a core and an exciter housing, said core being embedded in the exciter housing, being in clearance fit with the exciter housing, and being movable up and down, said boundary of said irregular aperture limiting said core to a certain extent for movement away from or towards the centre of rotation when the biomimetic exciter is rotated.
3. The subsoiler of claim 1 or 2, wherein said irregular holes have curved contours divided into a line connecting abcd and a ' b ' c'd ', wherein abcd and a ' b ' c'd are symmetrical about a central line, and wherein the peripheral contour curve of the abcd connecting line is composed of a-b segment curve, b-c segment curve, c-d segment curve and d-a segment curve, and rounding treatment is performed between each segment of curve, according to the following condition: establishing a rectangular coordinate system Y1aX1In a rectangular coordinate system Y1aX1The curve of the section a-b conforms to the following equation:
taking a as a base point, and taking a rectangular coordinate system Y1aX1Translating to a point b, and rotating 90 degrees clockwise to obtain a rectangular coordinate system Y2bX2In a rectangular coordinate system Y2bX2Middle, b-c section curve is fit forThe following equation:
taking b as a base point, and taking a rectangular coordinate system Y2bX2Translating to a point c, and rotating 90 degrees clockwise to obtain a rectangular coordinate system Y3cX3In a rectangular coordinate system Y3cX3The curve of the section c-d conforms to the following equation:
taking c as a base point, and taking a rectangular coordinate system Y3cX3Translating to a point d, and rotating clockwise by 90 degrees to obtain a rectangular coordinate system Y4dX4In a rectangular coordinate system Y4dX4The curve of the section d-a conforms to the following equation:
4. subsoiler according to claim 2, characterized in that the peripheral profile of the inner core comprises a section a-B, a section B-C, a section C-D, a section E-F and a section F-a, and a tail end, which is embedded inside the exciter housing, wherein the curves satisfy:
curve of A-B:
curve of B-C segment:
curve of C-D:
E-F section curve:
curve of segment F-A:
5. the subsoiler of claim 1, wherein said subsoiler is connected to the forced vibration link by a link, said self-excited vibration spring mechanism includes a set of first U-shaped connecting plates fixed to one end of the link on the side of the forced vibration link, a set of second U-shaped connecting plates clearance-fitted with the subsoiler to effect rotation of the subsoiler about the pin, a sleeve fixed to the first U-shaped connecting plates by a first fixing end, a mandrel mounted in the sleeve, a second fixing end fixed to the other end of the mandrel clearance-fitted with the second U-shaped connecting plates by the pin, and a compression spring externally fitted to said sleeve.
6. A subsoiler in accordance with claim 1, characterised in that two of said forced oscillation links are arranged in parallel on the frame, the rear forced oscillation link being connected to the subsoiler in accordance with the direction of movement during operation.
7. The subsoiler of claim 1, wherein the dual vibratory means are two, the central symmetry being disposed on both sides of the main frame, and a transmission means being disposed in the center of said main frame, said transmission means comprising a hydraulic motor, a bevel gear box and a cardan shaft, the hydraulic motor having an input connected to a hydraulic system, the hydraulic motor having an output connected to the input of the bevel gear box via a drive shaft, the cardan shaft being connected via two outputs of the bevel gear box, the other end of the cardan shaft being connected to the dual vibratory means.
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| CN109923959A (en) | 2019-06-25 |
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