CN106857463B - Water intake device on spot in ditch of paddy field pesticide application machine - Google Patents

Water intake device on spot in ditch of paddy field pesticide application machine Download PDF

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CN106857463B
CN106857463B CN201710048890.7A CN201710048890A CN106857463B CN 106857463 B CN106857463 B CN 106857463B CN 201710048890 A CN201710048890 A CN 201710048890A CN 106857463 B CN106857463 B CN 106857463B
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water
collecting tank
shaft
water collecting
tank
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CN106857463A (en
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魏新华
沈雪金
刘晓凯
吴姝
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Jiangsu University
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Jiangsu University
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0025Mechanical sprayers
    • A01M7/0032Pressure sprayers
    • A01M7/0042Field sprayers, e.g. self-propelled, drawn or tractor-mounted

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  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
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  • Environmental Sciences (AREA)
  • Fertilizing (AREA)
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Abstract

The invention discloses a field pesticide application machine dead furrow in-situ water taking device, and belongs to the field of rice field management machinery. The device includes water catch bowl, water intaking auxiliary device, self priming pump, two three way solenoid valve, filter, check valve, water tank. The water taking auxiliary device comprises an up-and-down fluctuation mechanism, a left-and-right swinging mechanism and a servo driving system; water is pumped out of the water collecting tank by a self-sucking pump, and flows into the water tank after being filtered by the filter; in order to prevent the filter from being blocked, the electromagnetic valve is switched regularly to back flush the filter; the up-and-down fluctuation mechanism realizes the copying of the bottom of the dead furrow through the automatic up-and-down fluctuation of the water collecting tank, the left-and-right swing mechanism carries out flexible centering when the water collecting tank is transversely deviated, and the servo driving system adjusts the position of the water taking auxiliary device when the water collecting tank is transversely deviated too much. The device can obtain clean water for mixing the pesticide and reduce the volume of the pesticide box by taking water in the field dead furrow and filtering the water.

Description

Water intake device on spot in ditch of paddy field pesticide application machine
Technical Field
The invention belongs to the field of rice field plant protection machinery, and relates to a field pesticide application machine dead furrow in-situ water taking device.
Background
The current paddy field pesticide application machinery medical kit is heavy, the ground connection specific pressure is big, destroys great to paddy field mud bottom, and the operation in-process falls into the car easily. The reason is that the dead weight of the unit is too large due to the overweight of the water tank. In response to this problem, water can be taken in situ in the paddy field and forcibly filtered to obtain clean water for use, which can reduce the volume of the water tank and thus greatly reduce the weight of the applicator. However, the water layer in the rice field is thin at present, the water surface has more weeds and impurities, and the operation machinery jolts up and down in the walking process, so that water taking is very difficult.
Patent CN201245184Y discloses a multifunctional crawler tractor, which has a smaller ground pressure ratio and can be applied to various operations, but the clearance between the tractor and the ground is only 240mm, which cannot be applied to the operations in the middle and later periods of the rice field. In order to improve the working efficiency and reduce the seedling pressing and damaging rate, the working width of the pesticide applying machine is generally more than 12 meters, and the capacity of a pesticide box is more than 1500L, so the weight of the unit can be reduced by reducing the capacity of the pesticide box of the pesticide applying machine. Therefore, when the rice field is operated, the required liquid medicine is obtained by taking water on the spot, forcibly filtering and mixing the medicine on line, and further synchronous preparation and spraying of the liquid medicine are realized, so that the volume of the medicine box can be reduced to below 300L from 1500L, and the light weight of the spraying machine is realized.
Patent CN104782601A discloses a furrow water intake device of a paddy field pesticide applying machine, if the unit slightly deviates from a preset track, and the shock absorber touches the furrow wall, elastic supports at two sides of a water collecting groove can enable the water collecting groove to be kept at the center of the furrow through elastic deformation, but the elastic supports do not have enough deformation space, and the adjustment space is small. When the unit deviates from a preset track greatly, the strains sensed by the two strain sensors are different due to different deformation of the elastic supports on the two sides, the electric bridge is unbalanced, and when the output signal of the electric bridge is greater than a set threshold value, the control system receives the output signal of the electric bridge and gives an alarm to prompt a driver to adjust the advancing direction of the unit, so that the position of the water taking device cannot be automatically adjusted, and the efficiency is low. When the ditch bottom is uneven, the two hinged plates of the water collecting tank can rotate relatively to keep stable water absorption, but the ditch bottom cannot be profiled.
Patent CN104324541A discloses a rice field dynamic rapid water absorption forced filtration device, which mainly comprises a water storage tank, a water pump, a water inlet pipe, a water collecting tank, a three-stage filter and the like. The ware is divided to fixed connection on the water catch bowl curb plate for the rice on separate both sides dials the impurity on the paddy field surface of water simultaneously, but can't carry on spacingly to the position of water catch bowl in the dead furrow, and the water intaking is unstable, is difficult to guarantee the cleanliness. When the impurities filtered by each stage are cleaned, all filters and filter sheets in the water inlet pipe are required to be detached, and the bottom plate of the water collecting tank is opened, so that the labor intensity is high.
Patent CN202129176U discloses moisturizing device of self-propelled sprayer, including a medical kit, the medical kit is installed at the frame middle part, be used for storage and ratio pesticide, a moisturizing pipe, be used for water delivery in the medical kit, be equipped with a shower nozzle at the income water end of moisturizing pipe, be equipped with an air cock in the main part of this shower nozzle, the air cock passes through a hose, be connected with the pressure control valve outside the medical kit, when the moisturizing, put into the water source with the shower nozzle, the moisturizing pipe lets in the medical kit, be connected the hose in addition with the pressure control valve outside the medical kit, take out the gas in the moisturizing pipe through the pressure control valve, form the vacuum in the moisturizing pipe, under the effect of atmospheric pressure water in the medical kit is mended through the moisturizing pipe. The device can automatic water supply, but can not effectively filter aquatic impurity, and the flow is less, and the moisturizing speed is slower.
In view of the above, in order to solve the above problems, and to rapidly and stably take water in a paddy field and forcibly filter the water to obtain clean water, the present invention provides a device, which is particularly suitable for taking water in a dead furrow in a paddy field and filtering the water.
Disclosure of Invention
The invention provides a paddy field pesticide application machine dead furrow in-situ water taking device, which forcibly takes water and filters in a paddy field dead furrow, ensures that the water taking device is always positioned at the central position of the dead furrow, ensures that a water taking port does not touch the side wall and the bottom of the dead furrow, has large water taking amount, clear water quality and stable work, and can be simultaneously carried out with pesticide mixing and spraying, and the specific technical scheme is as follows:
a farmland pesticide application machine dead furrow in-situ water taking device comprises a water collecting tank, a water taking auxiliary device, a self-sucking pump, a two-position three-way electromagnetic valve A, a two-position three-way electromagnetic valve B, a filter, a one-way valve and a water tank; the water collecting tank, the self-priming pump, the two-position three-way electromagnetic valve A, the two-position three-way electromagnetic valve B, the filter, the one-way valve and the water tank are sequentially connected through a water pipe; a bent rod in the water taking auxiliary device is connected with the water collecting tank; the water taking auxiliary device comprises a left-right swinging mechanism, an up-down fluctuation mechanism and a servo driving system;
the left-right swinging mechanism comprises a bent rod, a boss, a gasket, a bent spring, an outer spherical bearing with a seat, a shaft B, a guide cap and a rear plate; the boss is fixedly welded on the left side surface of the water collecting tank; the boss is provided with a shaft B; two ends of the bent rod are in threaded connection with the rear plate; the axle center of the shaft B and a semicircle formed by the bent rod are concentric, the bent rod is sleeved with a bent spring, one end of the bent spring is positioned by a gasket to prevent the bent spring from passing through a hole of the water collecting tank, the other end of the bent spring is tightly pressed on a guide cap, and the guide cap is arranged at two ends of the bent rod; the boss is in interference fit with the shaft B and limited by a shaft shoulder; the boss is provided with an insert bearing with a seat in an up-and-down symmetrical manner; the spherical outside bearing with the seat is in interference fit with the shaft B and limited by an elastic retainer ring, and the spherical outside bearing with the seat is fixed on the right side surface of the back plate through a bolt;
the up-and-down fluctuation mechanism comprises a double-end stud, a connecting block, a bearing seat, a double-end long screw, a top plate, a shaft A, an angle code, a tension spring and a ring with a hole; the bearing block is welded in the middle of the left side of the rear plate, and two connecting blocks are installed in the bearing block; one end of each connecting block is provided with a shaft A, and the shafts A are connected through threads; in the two shafts A, the outer diameter of one shaft A is provided with threads, the other shaft A is provided with internal threads, and the two shafts form threaded connection; the other end of each connecting block is provided with a hole, and the holes are provided with double-end studs; one end of the double-head long screw is arranged on the connecting block; the vertical other end of the double-end long screw is provided with a top plate; the lower surface of the top plate is provided with an angle code through a screw; the corner connector is connected with a tension spring, the other end of the tension spring is arranged on a ring with a hole, and the ring with the hole is arranged on the boss;
the servo driving system comprises an angle sensor, a coupler and a Z-shaped plate; the angle sensor shell is connected with the Z-shaped plate through a screw; the Z-shaped plate is arranged on the boss; and the coupler is fixed with the mandrel of the angle sensor.
Furthermore, a filter screen is arranged on the water collecting tank, two side plates of the water collecting tank incline towards the center, the bottom plate inclines upwards, and the distance of the upwards inclination of the bottom plate is about 5 cm-7 cm.
Further, under the action of gravity, the water collecting tank, the left-right swinging mechanism, the bearing seat and the bearing freely hang down around the shaft A to be contacted with the bottom of the ditch.
Furthermore, when the water collecting tank is subjected to upward acting force of the raised tank bottom on the water collecting tank due to the fact that the tank bottom is uneven, the water collecting tank can be pulled by the tension spring to lift upwards around the shaft A, so that the water collecting tank is ensured to be attached to the tank bottom all the time but not to be extruded, and profiling of the tank bottom and clearing of water quality are achieved.
Further, in the advancing process of the unit, due to poor straightness of the dead furrow and unstable running straightness of the pesticide applying machine, the water collecting tank deviates from a preset track, so that the water collecting tank touches ditch walls on two sides of the dead furrow of the paddy field, and the bent spring can enable the water collecting tank to rotate to the water intake to face the dead ahead along the bent rod through elastic deformation so as to obtain clear water.
Furthermore, the degree of tightness of the bent spring and the tension spring is changed by adjusting the installation positions of the guide cap and the top plate respectively.
Furthermore, the middle of the bent rod is a 180-degree circular ring taking the circle center of the shaft B as the circle center, two ends of the bent rod are threaded straight rods, and the end surface of the bent rod is parallel to the straight back plate of the water collecting tank.
Furthermore, the angle sensor is used for measuring the rotating angle of the shaft B, when the measured angle is larger than a preset value, the angle sensor signals the servo oil cylinder to control the servo oil cylinder to drive the water taking auxiliary device to reset, and the value is adjustable.
Furthermore, the measuring range of the angle sensor is 5-120 degrees.
Compared with the prior art, the invention has the following beneficial effects:
1. the water taking device can fluctuate up and down, realizes the profiling of the ditch bottom, and reduces the extrusion collision with the ditch bottom so as to obtain relatively clean water.
2. The horizontal direction of the water taking device is flexibly adjusted by the pressure spring, and when the water collecting tank slightly deviates from a correct channel, the water collecting tank can be reset, so that the water taking port faces to the right front to obtain cleaner water.
3. The servo driving system can move the whole water taking auxiliary device when the deflection of the water collecting tank exceeds a certain range, so that the whole water taking auxiliary device is always positioned at the central position of the dead furrow, and a water taking port is prevented from touching the bottom or the wall of the dead furrow, so that the water absorption stability and cleanness are kept.
Drawings
FIG. 1 is a schematic view of a water absorption filter device for absorbing water;
FIG. 2 is a schematic view showing the back flushing operation of the water absorption filter device;
FIG. 3 is a schematic view of the auxiliary device for water intake in situ in the dead furrow of a paddy field;
FIG. 4 is a schematic view of a side-to-side swinging mechanism in the apparatus of FIG. 3;
fig. 5 is a schematic view of the heave mechanism in the apparatus of fig. 3.
The reference numbers are as follows:
1. a water collection tank; 2. a water intake auxiliary device; 3. a self-priming pump; 4. a two-position three-way electromagnetic valve A; 5. a two-position three-way electromagnetic valve B; 6. a filter; 7. a one-way valve; 8. a water tank; 9. bending a rod; 10. a boss; 11. a gasket; 12. bending a spring; 13. an outer spherical bearing with a seat; 14. a shaft B; 15. a guide cap; 16. a back plate; 17. an angle sensor; 18. a coupling; a Z-shaped plate; 20. a stud; 21. connecting blocks; 22. a bearing seat; 23. a double-ended long screw; 24. a top plate; 25. a bearing; 26. a circlip; 27. an axis A; 28. corner connectors; 29. a tension spring; 30. a perforated ring.
The specific implementation mode is as follows:
the present solution is further described in detail below with reference to the accompanying drawings.
With reference to the schematic drawing of the water absorption and filtration device shown in fig. 1, the water absorption and filtration device of the present invention includes a water collection tank 1, a water intake auxiliary device 2, a self-priming pump 3, a two-position three-way electromagnetic valve a4, a two-position three-way electromagnetic valve B5, a filter 6, a check valve 7 and a water tank 8; the water collecting tank 1, the self-priming pump 3, the two-position three-way electromagnetic valve A4, the two-position three-way electromagnetic valve B5, the filter 6, the one-way valve 7 and the water tank 8 are connected through a water pipe; water is taken out from water catch bowl 1 by self priming pump 3, flows through two position three way solenoid valve A4, two position three way solenoid valve B5 in proper order, flows into water tank 8 through check valve 7 after being filtered by filter 6 again.
With reference to the schematic diagram of the back-flushing operation of the water absorption filter device of the present invention shown in fig. 2, in order to prevent the filter 6 from being clogged, the timing switching of the electromagnetic valve is programmed to back-flush the filter 6; water is pumped out from water collection tank 1 by self-priming pump 3, flows through two-position three-way solenoid valve A4, filter 6, realizes the back flush to filter 6, flows into water collection tank 1 through two-position three-way solenoid valve B5 again.
With reference to the schematic structural views of the water collecting tank 1 and the auxiliary device for taking water in situ from the dead furrow of the paddy field 2 shown in the attached drawings 3, 4 and 5, a filter screen is arranged outside the water collecting tank 1 to primarily filter impurities such as sand, water plants and the like, and a water inlet pipe extends into the water collecting tank 1 from a hole formed in the filter screen; the water taking auxiliary device 2 comprises an up-and-down mechanism, a left-and-right swinging mechanism and a servo driving system;
the up-down fluctuation mechanism comprises a stud 20, a connecting block 21, a bearing seat 22, a long stud screw 23, a top plate 24, a bearing 25, an elastic retainer ring 26, a shaft A27, an angle code 28, a tension spring 29 and a perforated ring 30, wherein the connecting block 21 is welded with the shaft A27, and the connecting block 21 is in threaded connection with the stud 20, the long stud screw 23 and the top plate 24; the top plate 24 is connected with the corner connector 28 through screws; the bearing 25 is in interference fit with the bearing seat 22 and the shaft A27 and limited by the elastic retainer ring 26, wherein the shaft A27 is formed by connecting two short shaft threads; the two ends of the tension spring 29 respectively hook the corner brace 28 and the ring with the hole 30;
the left-right swinging mechanism comprises a bent rod 9, a boss 10, a gasket 11, a bent spring 12, a spherical outside bearing 13 with a seat, a shaft B14, a guide cap 15 and a rear plate 16, wherein the bent rod 9 is concentric with the shaft B14, and two ends of the bent rod are in threaded connection with the rear plate 16; the bent spring 12 is sleeved on the bent rod 9, one end of the bent spring is in contact with the gasket 11 to prevent the bent spring from penetrating through the hole of the water collecting tank 1, and the other end of the bent spring is tightly pressed on the guide cap 15 through an elastic pad, a flat pad, a nut and a screw and then is connected to the two ends of the bent rod 9; the boss 10 is in interference fit with the shaft B14 and limited by a shaft shoulder; the two spherical outside bearings 13 with seats are symmetrical about the boss 10, are in interference fit with the shaft B14 and are limited by the elastic retainer ring 26, and the spherical outside bearings 13 with seats are fixed in the middle of the back plate 16 through bolts;
the servo driving system comprises an angle sensor 17, a coupler 18, a Z-shaped plate 19 and a servo oil cylinder 31, wherein the shell of the angle sensor 17 is connected with the Z-shaped plate 19 through a screw; the shaft coupling 18 is fixed with the mandrel of the angle sensor 17;
the bent rod 9 of the left-right swinging mechanism penetrates through the hole of the water collecting tank 1 but is not contacted with the hole, the boss 10 of the left-right swinging mechanism is welded with the straight back plate of the water collecting tank 1, and the back plate 16 is parallel to the straight back plate of the water collecting tank 1; the bearing seat 22 of the up-and-down fluctuation mechanism is welded at the center of the back plate 16 of the left-and-right swing mechanism, and the lower surface of the outer spherical bearing 13 with a seat positioned on the upper part in the left-and-right swing mechanism is welded with the perforated ring 30 of the up-and-down fluctuation mechanism; the shaft B14 of the left-right swinging mechanism is fixed with the coupler 18 of the servo driving system, and the upper surface of the spherical outside bearing 13 with a seat in the left-right swinging mechanism is connected with the Z-shaped plate 19 of the servo driving system through a screw; the stud 20 and the top plate 24 of the up-and-down fluctuation mechanism are arranged on a moving frame of the pesticide applying machine, and the moving frame is connected with a fixed frame of the pesticide applying machine and can slide along a guide rail of the fixed frame; two ends of a servo oil cylinder 31 of the servo driving system are respectively fixed on a moving frame and a fixing frame of the paddy field pesticide application machine, when the machine set deviates from a preset track to be larger, the angle sensor 17 sends a signal to the servo oil cylinder 31 to control the servo oil cylinder 31 to move the water taking auxiliary device 2 to a correct channel, and the stable advance and water absorption of the machine set are ensured.
The two side plates of the water collecting tank 1 incline towards the center, the bottom plate inclines upwards, and the tilting distance is about 5 cm-7 cm. Curb plate and bottom plate front end all are circular-arc, avoid the intake to touch paddy field soil moisture ditch bottom and ditch wall, silt immixing volume when reducing to absorb water makes things convenient for rivers to get into simultaneously.
In order to meet the requirement of pesticide application amount, a paddy field pesticide application machine with the average speed of 1m/s is selected, and the maximum flux is 4m3H self-priming pump 3, so the cross-sectional area of the water intake of the water collecting tank 1 is not less than 12cm2To obtain sufficient water.
Under the action of gravity, the water collection tank 1, the left-right swinging mechanism, the bearing seat 22 and the bearing 25 freely hang down to be in contact with the bottom of the ditch around the shaft A27.
When the water collecting tank 1 is subjected to upward acting force of the raised tank bottom on the water collecting tank 1 due to the uneven tank bottom, the tension spring 28 can pull the water collecting tank 1 to lift upwards around the shaft A27 so as to ensure that the water collecting tank 1 is always attached to the tank bottom but not extruded, and the profiling of the tank bottom and the clear water quality are realized.
In the advancing process of the machine set, due to the fact that the straightness of the dead furrow is poor and the driving straightness of the pesticide applying machine is unstable, the water collecting tank 1 deviates from a preset track, the water collecting tank 1 is caused to touch ditch walls on two sides of the dead furrow of the paddy field, and the bent springs 12 can enable the water collecting tank 1 to rotate to the water taking port to face the dead ahead along the bent rods 9 through elastic deformation, so that clear water is obtained.
The degree of tightness of the bent spring 12 and the tension spring 29 can be changed by adjusting the installation positions of the guide cap 15 and the top plate 24 respectively, so as to meet different movement requirements.
The middle of the bent rod 9 is a 180-degree circular ring taking the circle center of the shaft B29 as the circle center, two ends of the bent rod are threaded straight rods, and the end face of the bent rod is parallel to the straight back plate of the water collecting tank 1.
The angle sensor 16 measures the angle rotated by the shaft B14, and when the measured angle is greater than a preset value, the angle sensor signals the servo oil cylinder 31 to control the servo oil cylinder 31 to drive the water taking auxiliary device 2 to realize resetting, and the value is adjustable. The selected angle sensor 16 is small range, about 15-120 deg., to measure more accurate data.
Furrows with the depth of 30cm and the width of 50cm are dug at certain intervals in the paddy field, which is equivalent to the specification of the furrows for the fish and rice co-culture.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims (9)

1. The utility model provides a farmland quick-witted dead furrow water intaking device on spot, includes water catch bowl (1), self priming pump (3), filter (6) and water tank (8), its characterized in that: the water taking auxiliary device (2), the two-position three-way electromagnetic valve A (4), the two-position three-way electromagnetic valve B (5) and the one-way valve (7) are further included; the water collecting tank (1), the self-sucking pump (3), the two-position three-way electromagnetic valve A (4), the two-position three-way electromagnetic valve B (5), the filter (6), the one-way valve (7) and the water tank (8) are sequentially connected through a water pipe; a bent rod (9) in the water taking auxiliary device (2) is connected with the water collecting tank (1); the water taking auxiliary device (2) comprises a left-right swinging mechanism, an up-down fluctuation mechanism and a servo driving system;
the left-right swinging mechanism comprises a bent rod (9), a boss (10), a gasket (11), a bent spring (12), a spherical outside bearing (13) with a seat, a shaft B (14), a guide cap (15) and a rear plate (16); the boss (10) is fixedly welded on the left side surface of the water collecting tank (1); a shaft B (14) is arranged on the boss (10); two ends of the bent rod (9) are in threaded connection with the rear plate (16); the axis of the shaft B (14) and a semicircle formed by the bent rod (9) are concentric, the bent rod (9) is sleeved with a bent spring (12), one end of the bent spring (12) is positioned through a gasket (11) to prevent the bent spring (12) from penetrating through a hole of the water collecting tank (1), the other end of the bent spring (12) is tightly pressed on a guide cap (15), and the guide cap (15) is arranged at two ends of the bent rod (9); the boss (10) is in interference fit with the shaft B (14) and limited by a shaft shoulder; the boss (10) is provided with spherical outside bearings (13) with seats in an up-down symmetrical manner, the spherical outside bearings (13) with seats are in interference fit with the shaft B (14) and limited by an elastic retainer ring (26), and the spherical outside bearings (13) with seats are fixed on the right side surface of the back plate (16) through bolts;
the up-and-down fluctuation mechanism comprises a double-end stud (20), a connecting block (21), a bearing seat (22), a double-end long screw rod (23), a top plate (24), a shaft A (27), an angle code (28), a tension spring (29) and a ring with a hole (30); the bearing seat (22) is welded in the middle of the left side of the rear plate (16), and two connecting blocks (21) are installed in the bearing seat (22); one end of each connecting block (21) is provided with a shaft A (27), and the shafts A (27) are connected through threads; in the two shafts A (27), the outer diameter of one shaft A (27) is provided with threads, the other shaft A (27) is provided with internal threads, and the two shafts form threaded connection; the other end of each connecting block (21) is provided with a hole, and the hole is provided with a double-end stud (20); one end of the double-head long screw rod (23) is arranged on the connecting block (21); the vertical other end of the double-end long screw rod (23) is provided with a top plate (24); an angle code (28) is arranged on the lower surface of the top plate (24) through a screw; a tension spring (29) is connected to the corner connector (28), the other end of the tension spring (29) is arranged on a ring with a hole (30), and the ring with the hole (30) is arranged on the boss (10);
the servo driving system comprises an angle sensor (17), a coupler (18) and a Z-shaped plate (19); the shell of the angle sensor (17) is connected with the Z-shaped plate (19) through a screw; the Z-shaped plate (19) is arranged on the boss (10); the shaft coupling (18) is fixed with a mandrel of the angle sensor (17).
2. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: the filter screen is arranged on the water collecting tank (1), two side plates of the water collecting tank (1) incline towards the center, the bottom plate inclines upwards, and the distance of the upwards inclination of the bottom plate is about 5 cm-7 cm.
3. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: under the action of gravity, the water collecting tank (1), the left-right swinging mechanism, the bearing seat (22) and the bearing (25) freely hang down around the shaft A (27) to be contacted with the bottom of the ditch.
4. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: when the water collecting tank (1) is subjected to upward acting force of the raised tank bottom on the water collecting tank (1) due to the uneven tank bottom, the tension spring (28) can pull the water collecting tank (1) to lift upwards around the shaft A (27), so that the water collecting tank (1) is ensured to be always attached to the tank bottom but not extruded, and the profiling of the tank bottom and the clear water quality are realized.
5. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: in the advancing process of the unit, due to poor straightness of the dead furrow and unstable running straightness of the pesticide applying machine, the water collecting tank (1) deviates from a preset track, so that the water collecting tank (1) touches the ditch walls on two sides of the dead furrow of the paddy field, and the bent spring (12) can enable the water collecting tank (1) to rotate to the water taking port to face the front along the bent rod (9) through elastic deformation so as to obtain clear water.
6. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: the degree of tightness of the bent spring (12) and the tension spring (29) is changed by adjusting the installation positions of the guide cap (15) and the top plate (24) respectively.
7. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: the middle of the bent rod (9) is a 180-degree circular ring taking the circle center of the shaft B (29) as the circle center, two ends of the bent rod are threaded straight rods, and the end surface of the bent rod is parallel to a straight back plate of the water collecting tank (1).
8. The field applicator dead furrow in situ water intake apparatus of claim 1, wherein: the angle sensor (16) is used for measuring the rotating angle of the shaft B (14), when the measured angle is larger than a preset value, a signal is sent to the servo oil cylinder, the servo oil cylinder is controlled to drive the water taking auxiliary device (2) to realize resetting, and the value is adjustable.
9. A field applicator dead furrow in situ water intake apparatus according to claim 8, wherein: the measuring range of the angle sensor (16) is 5-120 degrees.
CN201710048890.7A 2017-01-21 2017-01-21 Water intake device on spot in ditch of paddy field pesticide application machine Active CN106857463B (en)

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