CN103398034A - Hydraulic control system applicable to potato seeder - Google Patents
Hydraulic control system applicable to potato seeder Download PDFInfo
- Publication number
- CN103398034A CN103398034A CN2013103550649A CN201310355064A CN103398034A CN 103398034 A CN103398034 A CN 103398034A CN 2013103550649 A CN2013103550649 A CN 2013103550649A CN 201310355064 A CN201310355064 A CN 201310355064A CN 103398034 A CN103398034 A CN 103398034A
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- oil
- control
- hydraulic motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sowing (AREA)
Abstract
The invention relates to a hydraulic control system applicable to a potato seeder, which comprises a filter, a reducing valve, a sequence valve, a hydraulic motor, a safety valve, an unloading valve, a one-way cylinder, a sensor group and the like. The hydraulic motor is connected with the power output end of a sowing mechanism and the power input end of a fertilization mechanism to drive the sowing mechanism and the fertilization mechanism to move, so that the fertilizing amount and the row spacing can be adjusted in a follow-up manner when potatoes are sown and always maintain the initial set values at different moving speeds of the seeder, the uniformity of fertilization and seed sowing is ensured, the row spacing and the fertilizing amount can be adjusted infinitely, and different agricultural seeding requirements in various regions can be fully met.
Description
Technical field
The present invention relates to the Sowing machine for potatoes of agricultural mechanical field, particularly a kind of hydraulic control system that is applicable to Sowing machine for potatoes.
Background technique
Potato is the fourth-largest crop of China, and cultivated area is large, and bright potato output occupies first place in the world, and potato occupies critical role in agricultural economy, realize potato production mechanization, is as good as the development that can promote Potato Industry; A variety of potato setters are arranged in the market, and its basic structure comprises fertilizing mechanism, sowing mechanism, kind case and transmission system; Transmission system is mainly to rely on land wheel to rotate to provide power, by the effect of chain and sprocket wheel, by transmission of power to fertilizing mechanism and sowing mechanism, drive fertilizing mechanism and sowing mechanism work, because relying on mechanical structure fully, it realizes transmission of power, its complex structure, poor reliability; Potato has strict requirement for the spacing in the rows of sowing, Sowing machine for potatoes in the past, the adjusting of its spacing in the rows is mainly to rely on to change the incompatible change register ratio of chain wheel set, realize the adjusting of spacing in the rows, because the sprocket wheel quantity that configures on each machine is limited, thereby determined must be limited on several fixing parameters for the adjusting of potato spacing in the rows.There are different plantation agriculture requirements in different areas, and sometimes fixing spacing in the rows adjusting parameter just can't meet some regional planting requirement; Fertilizing mechanism is also the different sprocket wheel of configuration, by the transmission between the change sprocket wheel, recently realizes the adjusting of dose, and the adjusting of its dose is also to be limited on certain several fixed value as a same reason, can't realize step-less adjustment; Due to the pure mechanical transmission that present potato planting machinery adopts, rate of fault is high, and repairs pretty troublesome.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of hydraulic control system for Sowing machine for potatoes, by mechanical-electrical-hydraulic integration, design, utilize oil hydraulic motor to drive sowing mechanism and fertilizing mechanism motion, the rotating speed of follow-up adjustment sowing mechanism and fertilizing mechanism while realizing potato sowing, make dose and spacing in the rows under the different gait of march of sowing machine, setting value while forever keeping initial, thereby guaranteed the uniformity of fertilising and sowing, and sowing spacing in the rows and dose can step-less adjustment, can meet each sowing agriculture requirement from different places fully.In order to achieve this end, we carry out the rotating speed of Real-Time Monitoring sowing mechanism, fertilizing mechanism and ground wheel mechanism by speed probe is set, according to linear relationship, when the Sowing machine for potatoes gait of march accelerates, we guarantee the stable of spacing in the rows and dose by accelerating the rotating speed of sowing mechanism and fertilizing mechanism; On the contrary, if when the Sowing machine for potatoes gait of march slows down, we guarantee the stable of spacing in the rows and dose by reducing the rotating speed of sowing mechanism and fertilizing mechanism.
In order to realize function as above, the present invention realizes by the following method: a kind of hydraulic control system for Sowing machine for potatoes of the present invention comprises filter, reduction valve, sequence valve, proportional flow control valve, oil hydraulic motor, safety valve, unloading valve, throttle valve, one-way cylinder, Pilot operated check valve, solenoid directional control valve, forced air cooler, tubular type one-way valve, Direct box and sensor group; Described oil hydraulic motor comprises oil hydraulic motor M1 and oil hydraulic motor M2; Described oil hydraulic motor M1 is connected with the power intake of sowing mechanism, drives sowing mechanism and rotates; Described oil hydraulic motor M2 is connected with the power intake of fertilizing mechanism, drives fertilizing mechanism and rotates; The filler opening end of hydraulic circuit is connected with the hydraulic oil entrance of filter by node a, and hydraulic oil outlet one end of filter is provided with node b; The hydraulic oil entry end of described reduction valve is connected with node b, the hydraulic oil outlet end of reduction valve is provided with node c, the node f that arranges on unloading port's pipeline of reduction valve and the hydraulic oil circuit of hydraulic control system is connected, and reduction valve is for setting the maximum service pressure of oil hydraulic motor; The hydraulic oil entry end of described proportional flow control valve is connected with node c, and the hydraulic oil outlet end of proportional flow control valve is connected with the hydraulic oil entry end of sequence valve, and proportional flow control valve is for controlling the rotating speed of oil hydraulic motor; The hydraulic oil outlet end of described sequence valve is connected with the hydraulic oil entry end of oil hydraulic motor, the pressure size of sequence valve control end monitoring proportional flow control valve hydraulic oil outlet end, by the pressure size, control the connection of oil hydraulic motor hydraulic circuit, thereby guaranteed the lowest starting pressure of oil hydraulic motor, made oil hydraulic motor start and stop steadily; The node f that arranges on the hydraulic oil outlet end of described oil hydraulic motor and the hydraulic oil circuit of hydraulic control system is connected;
One end of described throttle valve is connected with node b, and the other end is connected with the hydraulic oil entry end node 1 of solenoid directional control valve; Node i on described solenoid directional control valve is connected with the hydraulic oil entry end of Pilot operated check valve, node j is connected with the oil circuit control of Pilot operated check valve, the node f that arranges on node f and hydraulic oil circuit is same node, the hydraulic oil outlet end of Pilot operated check valve is provided with node k, the hydraulic oil interface of one-way cylinder is connected with node k, by controlling solenoid directional control valve, can realize the switching of one-way cylinder in-line and return line; Described one-way cylinder is connected with the kind case, controls lifting and falling action of kind of case;
The node f that arranges on described hydraulic oil circuit is connected with forced air cooler hydraulic oil entry end, the hydraulic oil outlet end of described forced air cooler is connected with the hydraulic oil entry end of tubular type one-way valve, the hydraulic oil outlet end of tubular type one-way valve is connected with the return opening of hydraulic circuit, the tubular type one-way valve is arranged at the return opening place of hydraulic circuit, oil inlet pipe and return tube wrong when preventing that hydraulic control system from docking with power equipment, the tubular type one-way valve will guarantee that hydraulic circuit can't open, and hydraulic control system and forced air cooler are protected;
Described sensor group comprise the sowing speed probe, the fertilising speed probe, wheel speed sensor and position limit switch; Described sowing speed probe is arranged on sowing mechanism, for the rotating speed of Real-Time Monitoring sowing mechanism; Described fertilising speed probe is arranged on Fertilization Structure, for the rotating speed of Real-Time Monitoring fertilizing mechanism; Described ground wheel speed sensor is arranged on land wheel, the rotating speed while advancing for the Real-Time Monitoring land wheel; Sowing speed probe, fertilising speed probe, wheel speed sensor all by signal feed back to the control terminal that arranges in Direct box, control terminal is sowed signals of rotational speed sensor and land wheel signals of rotational speed sensor by contrast in real time, by the control ratio Flow valve, realize the control to oil hydraulic motor M1, finally make sowing mechanism rotation speed change and land wheel rotation speed change form closed loop control accurately, guarantee that plant is apart from the value that is stabilized in the original state setting; Control terminal is by contrasting in real time fertilising signals of rotational speed sensor and land wheel signals of rotational speed sensor, by the control ratio Flow valve, realize the control to oil hydraulic motor M2, finally make rotation speed change and the land wheel rotation speed change of fertilizing mechanism form closed loop control accurately, guarantee that dose is stabilized in the value that original state arranges; Described position limit switch is for setting the limit position that lifts and fall of mainframe, and position limit switch feeds back to control terminal by electrical signal, and control terminal, by the feedback electrical signal that receives, judges whether to control the hydraulic electric control system works; When mainframe lifts, when sowing machine was in non-sowing working state, position limit switch fed back to control terminal by feedback signal, and control terminal is after receiving the feedback signal of position limit switch, cut off the signal that all the sensors collects, make the hydraulic electric control system be in off position; When mainframe fell, sowing machine was in the sowing working state, and control terminal, according to the feedback signal of position limit switch, starts and implements to gather each sensor signal, makes the hydraulic electric control system in running order.
The hydraulic oil entry end of described safety valve is connected with node b, and the hydraulic oil outlet end of safety valve is connected with node f, be used to controlling the maximum service pressure of hydraulic control system.
The hydraulic oil entry end of described unloading valve is connected with node b, and the hydraulic oil outlet end of unloading valve is connected with node f, and when hydraulic control system was not worked, unloading valve was not in unloading condition; Hydraulic system is started working, and unloading valve is in closed condition, and system pressure is increased to working state pressure fast.
Described proportional flow control valve comprises proportional flow control valve a and proportional flow control valve b, and sequence valve comprises sequence valve a and sequence valve b; Before proportional flow control valve a and sequence valve a are arranged at oil hydraulic motor M1, be used to the rotating speed of controlling oil hydraulic motor M1 and the lowest starting pressure of oil hydraulic motor M1, guarantee oil hydraulic motor M1 smooth starting and stop; Before proportional flow control valve b and sequence valve b are arranged at oil hydraulic motor M2, be used to the rotating speed of controlling oil hydraulic motor M2 and the lowest starting pressure of oil hydraulic motor M2, guarantee oil hydraulic motor M2 smooth starting and stop.
On described Direct box, also be provided with alarm, display screen, control key and function selecting key; Direct box is singly connected with fuse box, the control circuit in Direct box and sowing speed probe, fertilising speed probe, wheel speed sensor, position limit switch, spray medicine motor, proportional flow control valve, unloading valve, solenoid directional control valve and forced air cooler form and electrically connect; Control key comprises that power switch is be used to controlling the open and close of power supply in Direct box, spray medicine switch is for controlling the open and close of spray medicine motor, the hopper switch, for controlling solenoid directional control valve work, by the job control to one-way cylinder, is realized lifting and putting down of kind of case.
A kind of controlling method that is applicable to the hydraulic control system of Sowing machine for potatoes, it mainly comprises following control step:
1) according to agriculture requirement, the dose that the spacing in the rows of potato planting and when sowing need is set, thereby determine the linear corresponding relation of sowing mechanism rotational velocity and land wheel rotational velocity, determine the linear corresponding relation of fertilizing mechanism rotational velocity and land wheel rotational velocity;
2) by safety valve setting, control the maximum service pressure of hydraulic control system, by reduction valve, set the maximum service pressure of oil hydraulic motor, by sequence valve, set the lowest starting pressure of oil hydraulic motor;
3) open hydraulic control system, unloading valve is in closed condition, and pressure oil enters hydraulic control system by filter, and hydraulic control system pressure is increased to working state pressure fast; Sowing machine advances, land wheel rotates, control terminal is sowed signals of rotational speed sensor and land wheel signals of rotational speed sensor by contrast in real time, and a realizes the control to oil hydraulic motor M1 by the control ratio Flow valve, finally makes sowing mechanism rotation speed change and land wheel rotation speed change form closed loop control accurately; Control terminal is by contrasting in real time fertilising signals of rotational speed sensor and land wheel signals of rotational speed sensor, b realizes the control to oil hydraulic motor M2 by the control ratio Flow valve, finally makes the rotation speed change of fertilizing mechanism and land wheel rotation speed change form closed loop control accurately;
4) open the hopper switch, the control solenoid directional control valve is in to one-way cylinder and supplies oil condition, and the hydraulic oil entry end of Pilot operated check valve is communicated with pressure oil, and the oil circuit control of Pilot operated check valve is communicated with oil circuit, Pilot operated check valve is in unidirectional oil-feed state, and one-way cylinder will be planted case and be lifted gradually; Plant case and lift while putting in place, control solenoid directional control valve and be in the oil-break line state, the hydraulic oil pipeline sealing of one-way cylinder, thus the bonding action oil cylinder remains on current position state; In the time will putting down kind of case, control solenoid directional control valve and be in the oil return state, the oil circuit control of Pilot operated check valve is communicated with pressure oil, Pilot operated check valve is opened, the hydraulic oil entry end of Pilot operated check valve is communicated with oil circuit, in one-way cylinder, hydraulic oil flows out oil cylinder by Pilot operated check valve, plants case and puts down gradually;
5) when hydraulic control system only is in sowing and does not apply fertilizer state, control system will be closed proportional flow control valve b, make oil hydraulic motor M2 be in off working state, and sowing machine advances in process and only has oil hydraulic motor M1 work, completes seeding operation;
6) when hydraulic control system only is in fertilising and does not sow state, control system will be closed proportional flow control valve a, make oil hydraulic motor M1 be in off working state, and sowing machine advances in process and only has oil hydraulic motor M2 work, completes the fertilising operation;
7) when hydraulic control system is in the discharging state, sowing machine halts, the ground wheel speed is zero, control terminal will abandon implementing to gather the land wheel signals of rotational speed sensor, and be fixed value by land wheel signals of rotational speed sensor setting parameter, control terminal is sowed signals of rotational speed sensor and land wheel signals of rotational speed sensor by contrast, by control ratio Flow valve a, controls oil hydraulic motor M1 work, realizes that sowing mechanism unloads kind of an operation; Control terminal, by contrast apply fertilizer signals of rotational speed sensor and land wheel signals of rotational speed sensor, is controlled oil hydraulic motor M2 work by control ratio Flow valve b, realizes that fertilizing mechanism unloads fertile operation.
The accompanying drawing explanation
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of hydraulic control device of the present invention
Fig. 2 is the structural drawing of the sowing mechanism that the present invention relates to
Fig. 3 is the structural drawing of the fertilizing mechanism that the present invention relates to
Fig. 4 is the structural drawing of the fertilising chain harrow that the present invention relates to
Fig. 5 is the schematic diagram of electric controller of the present invention
In the figure, a filter, 2 valve, 3 sequence valve, A4 seeding mechanism 5 hydraulic motor M1, 6 proportional flow control valve, A7 safety valve, 8 sequence valve b9 fertilization institutions, 10 hydraulic motor M2, 11 proportional flow control valve, b12 unloading valve 13 throttle, 14, single-acting cylinders, 15 check valve, 16 solenoid valve 17 air cooler, 18 check valve, 19 seed tube guide, 20 wheels 21 kinds Cup , 22 small seed box, 23 sowing shaft, 24 fertilizer box, 25 fertilization fertilization unit 26 drive shaft, 27 guide fat pipe, 28 fertilize chain harrow, 29 control box 30 alarm, 31 screen, 32 control keys, 33 features selection key 34 the fuse box, 35 spraying motor, 36 hoppers switch, 37 sowing fertilization speed sensor speed sensor 38, 39 ground wheel speed sensor, 40 limit switch
Embodiment
Be illustrated in figure 2 the structural drawing of the sowing mechanism (4) that the present invention relates to, sowing mechanism (4) mainly comprises grain conductor (19), driving wheel (20), kind cup (21), microspecies case (22) and sowing live axle (23); Sowing live axle (23) is fixedly connected with driving wheel (20), can drive driving wheel (20) and rotate; Planting staggered being fixedly connected on of cup (21) sows on belt, the sowing belt sleeve is connected on the follower of driving wheel (20) and grain conductor (19) lower end, rely on driving wheel (20) to rotate and drive the rotation of sowing belt, thereby be fixedly connected on the kind cup (21) of sowing on belt from microspecies case (22), obtaining potato seed, and follow the sowing belt move upward, in the position that is positioned at grain conductor (19) top, the potato seed of planting in cup (21) will fall in the seed furrow of holding successfully by grain conductor (19), namely complete the process of getting kind of sowing; Whole sowing machine also comprises a larger kind case, its be hinged with frame on, by the promotion of one-way cylinder (14), can rotate around the hinge contact, thereby the potato seed in the macrospecies case is poured in microspecies case (22); In seeding process, in order to guarantee under different gait of march, the spacing in the rows of potato sowing keeps a definite value, just need to be when gait of march accelerates, the rotating speed of sowing live axle (23) accelerates thereupon, namely gets kind of speed and also accelerates, after potato seed falls into the speed quickening in seed furrow, can adapt to gait of march faster, guarantee that spacing in the rows is even.
Be as shown in Figure 3, Figure 4 the structural drawing of the fertilizing mechanism that the present invention relates to, fertilizing mechanism (9) mainly comprises fertile case (24), fertilising unit (25), fertilising live axle (26) and fertilizer guiding tube (27), the lower end of fertile case (24) is provided with fertile mouthful, and the Fei Kou position that falls is fixedly connected with fertilising unit (25); On fertilising unit (25), be provided with driving sprocket wheel, driving sprocket wheel is fixedly connected with fertilising live axle (26), on driving sprocket wheel, is socketed with fertilising chain harrow (28); Fertilising live axle (26) rotates and will drive the driving sprocket wheel rotation, thereby the fertilising chain harrow (28) that is socketed on driving sprocket wheel also rotates thereupon, fertilizer in fertile case (24) is fallen on fertilising chain harrow (28) by the fertile mouth that falls, and follow the fertilising chain harrow (28) travel forward, be positioned at fertilising chain harrow (28) position foremost, fertilising chain harrow (28) turns round with driving sprocket wheel, and fertilizer will fall into field by fertilizer guiding tube (27).In seeding process, in order to guarantee under different gait of march, dose keeps a definite value, just need to be when gait of march accelerates, the rotating speed of fertilising live axle (26) accelerates thereupon, namely carries fertile speed to accelerate, and fertilizer is also accelerated by the speed that fertilizer guiding tube (27) falls into field, thereby adapt to gait of march faster, guarantee the even of dose.
As shown in Figure 1, a kind of hydraulic control system for Sowing machine for potatoes of the present invention comprises filter (1), reduction valve (2), sequence valve, proportional flow control valve, oil hydraulic motor, safety valve (7), unloading valve (12), throttle valve (13), one-way cylinder (14), Pilot operated check valve (15), solenoid directional control valve (16), forced air cooler (17), tubular type one-way valve (18), Direct box (29) and sensor group; Described oil hydraulic motor comprises oil hydraulic motor M1 (5) and oil hydraulic motor M2 (10); Described oil hydraulic motor M1 (5) is connected with the sowing live axle (23) of sowing mechanism (4), drives sowing mechanism (4) and rotates; Described oil hydraulic motor M2 (10) is connected with the fertilising live axle (26) of fertilizing mechanism (9), drives fertilizing mechanism (9) and rotates; The filler opening end of hydraulic circuit is connected with the hydraulic oil entrance of filter (1) by node a, and hydraulic oil outlet one end of filter (1) is provided with node b; The hydraulic oil entry end of described reduction valve (2) is connected with node b, the hydraulic oil outlet end of reduction valve (2) is provided with node c, the node f that arranges on unloading port's pipeline of reduction valve (2) and the hydraulic oil circuit of hydraulic control system is connected, and reduction valve (2) is be used to setting the maximum service pressure of oil hydraulic motor.
Described proportional flow control valve comprises proportional flow control valve a (6) and proportional flow control valve b (11), and sequence valve comprises sequence valve a (3) and sequence valve b (8); Proportional flow control valve a (6) and sequence valve a (3) are arranged at oil hydraulic motor M1 (5) before, the hydraulic oil entry end of proportional flow control valve a (6) is connected with node c, the hydraulic oil outlet end of proportional flow control valve a (6) is connected with the hydraulic oil entry end of sequence valve a (3), the hydraulic oil outlet end of sequence valve a (3) is connected with the hydraulic oil entry end of oil hydraulic motor M1 (5), proportional flow control valve a (6) and sequence valve a (3) are mainly used in controlling the rotating speed of oil hydraulic motor M1 (5) and the lowest starting pressure of oil hydraulic motor M1 (5), guarantee oil hydraulic motor M1 (5) smooth starting and stop; proportional flow control valve b (11) and sequence valve b (8) are arranged at oil hydraulic motor M2 (10) before, the hydraulic oil entry end of proportional flow control valve b (11) is connected with node c, the hydraulic oil outlet end of proportional flow control valve b (11) is connected with the hydraulic oil entry end of sequence valve b (8), the hydraulic oil outlet end of sequence valve b (8) is connected with the hydraulic oil entry end of oil hydraulic motor M2 (10), proportional flow control valve b (11) and sequence valve b (8) are mainly used in controlling the rotating speed of oil hydraulic motor M2 (10) and the lowest starting pressure of oil hydraulic motor M2 (10), guarantee oil hydraulic motor M2 (10) smooth starting and stop, the node f that arranges on the hydraulic oil outlet end of described oil hydraulic motor M1 (5) and oil hydraulic motor M2 (10) and the hydraulic oil circuit of hydraulic control system is connected.
One end of described throttle valve (13) is connected with node b, and the other end is connected with the hydraulic oil entry end node 1 of solenoid directional control valve (16); Node i on described solenoid directional control valve (16) is connected with the hydraulic oil entry end of Pilot operated check valve (15), node j is connected with the oil circuit control of Pilot operated check valve (15), the node f that arranges on node f and hydraulic oil circuit is same node, the hydraulic oil outlet end of Pilot operated check valve (15) is provided with node k, the hydraulic oil interface of one-way cylinder (14) is connected with node k, by controlling solenoid directional control valve (16), can realize the switching of one-way cylinder (14) in-line and return line; Described one-way cylinder (14) is connected with the kind case, controls lifting and falling action of kind of case.
The node f that arranges on described hydraulic oil circuit is connected with forced air cooler (17) hydraulic oil entry end; the hydraulic oil outlet end of described forced air cooler (17) is connected with the hydraulic oil entry end of tubular type one-way valve (18); the hydraulic oil outlet end of tubular type one-way valve (18) is connected with the return opening of hydraulic circuit; tubular type one-way valve (18) is arranged at the return opening place of hydraulic circuit; oil inlet pipe and return tube wrong when preventing that hydraulic control system from docking with power equipment; tubular type one-way valve (18) will guarantee that hydraulic circuit can't open, and hydraulic control system is protected.
The hydraulic oil entry end of described safety valve (7) is connected with node b, and the hydraulic oil outlet end of safety valve (7) is connected with node f, be used to controlling the maximum service pressure of hydraulic control system.
The hydraulic oil entry end of described unloading valve (12) is connected with node b, and the hydraulic oil outlet end of unloading valve (12) is connected with node f, and unloading valve when hydraulic control system is not worked (12) is in unloading condition; Hydraulic system is started working, and unloading valve (12) is in closed condition, and system pressure is increased to working state pressure fast.
As shown in Figure 5, described sensor group comprise the sowing speed probe (37), the fertilising speed probe (38), wheel speed sensor (39) and position limit switch (40); It is upper that described sowing speed probe (37) is arranged at sowing mechanism (4), for the rotating speed of Real-Time Monitoring sowing mechanism (4); It is upper that described fertilising speed probe (38) is arranged at Fertilization Structure (9), for the rotating speed of Real-Time Monitoring fertilizing mechanism (9); Described ground wheel speed sensor (39) is arranged on land wheel, the rotating speed while advancing for the Real-Time Monitoring land wheel; Sowing speed probe (37), fertilising speed probe (38), wheel speed sensor (39) all by signal feed back to the control terminal that arranges in Direct box (29), control terminal is by the speed probe (37) of contrast sowing in real time signal and ground wheel speed sensor (39) signal, by the control ratio Flow valve, realize the control to oil hydraulic motor M1 (5), finally make sowing mechanism (4) rotation speed change and land wheel rotation speed change form closed loop control accurately, guarantee that plant is apart from the value that is stabilized in the original state setting; Control terminal is by contrasting in real time fertilising speed probe (38) signal and land wheel signals of rotational speed sensor, by the control ratio Flow valve, realize the control to oil hydraulic motor M2 (10), finally make rotation speed change and the land wheel rotation speed change of fertilizing mechanism (9) form closed loop control accurately, guarantee that dose is stabilized in the value that original state arranges; Described position limit switch (40) is be used to setting the limit position that lifts and fall of mainframe, and position limit switch (40) feeds back to control terminal by electrical signal, and control terminal, by the feedback electrical signal that receives, judges whether to control the hydraulic electric control system works; When mainframe lifts, when sowing machine is in non-sowing working state, position limit switch (40) feeds back to control terminal by feedback signal, control terminal is after the feedback signal that receives position limit switch (40), cut off the signal that all the sensors collects, make the hydraulic electric control system be in off position; When mainframe fell, sowing machine was in the sowing working state, and control terminal, according to the feedback signal of position limit switch (40), starts and implements to gather each sensor signal, makes the hydraulic electric control system in running order.
As shown in Figure 5, on described Direct box (29), also be provided with alarm (30), display screen (31), control key (32) and function selecting key (33); Direct box (29) is singly connected with fuse box (34), the control circuit in Direct box (29) and sowing speed probe (37), fertilising speed probe (38), wheel speed sensor (39), position limit switch (40), spray medicine motor (35), proportional flow control valve, unloading valve (12), solenoid directional control valve (16) and forced air cooler (17) formation electrically connect; Control key (32) comprises that power switch is be used to controlling the open and close of power supply in Direct box, spray medicine switch is for controlling the open and close of spray medicine motor, the hopper switch, for controlling solenoid directional control valve work, by the job control to one-way cylinder, is realized lifting and putting down of kind of case.
Claims (7)
1. the hydraulic control system for Sowing machine for potatoes, is characterized in that: comprise filter, reduction valve, sequence valve, proportional flow control valve, oil hydraulic motor, safety valve, unloading valve, throttle valve, one-way cylinder, Pilot operated check valve, solenoid directional control valve, forced air cooler, tubular type one-way valve, Direct box and sensor group; Described oil hydraulic motor comprises oil hydraulic motor M1 and oil hydraulic motor M2; Described oil hydraulic motor M1 is connected with the power intake of sowing mechanism, drives sowing mechanism and rotates; Described oil hydraulic motor M2 is connected with the power intake of fertilizing mechanism, drives fertilizing mechanism and rotates; The filler opening end of hydraulic circuit is connected with the hydraulic oil entrance of filter by node a, and hydraulic oil outlet one end of filter is provided with node b; The hydraulic oil entry end of described reduction valve is connected with node b, the hydraulic oil outlet end of reduction valve is provided with node c, the node f that arranges on unloading port's pipeline of reduction valve and the hydraulic oil circuit of hydraulic control system is connected, and reduction valve is for setting the maximum service pressure of oil hydraulic motor; The hydraulic oil entry end of described proportional flow control valve is connected with node c, and the hydraulic oil outlet end of proportional flow control valve is connected with the hydraulic oil entry end of sequence valve, and proportional flow control valve is for controlling the rotating speed of oil hydraulic motor; The hydraulic oil outlet end of described sequence valve is connected with the hydraulic oil entry end of oil hydraulic motor, the pressure size of sequence valve control end monitoring proportional flow control valve hydraulic oil outlet end, by the pressure size, control the connection of oil hydraulic motor hydraulic circuit, thereby guaranteed the lowest starting pressure of oil hydraulic motor, made oil hydraulic motor start and stop steadily; The node f that arranges on the hydraulic oil outlet end of described oil hydraulic motor and the hydraulic oil circuit of hydraulic control system is connected;
One end of described throttle valve is connected with node b, and the other end is connected with the hydraulic oil entry end node 1 of solenoid directional control valve; Node i on described solenoid directional control valve is connected with the hydraulic oil entry end of Pilot operated check valve, node j is connected with the oil circuit control of Pilot operated check valve, the node f that arranges on node f and hydraulic oil circuit is same node, the hydraulic oil outlet end of Pilot operated check valve is provided with node k, the hydraulic oil interface of one-way cylinder is connected with node k, by controlling solenoid directional control valve, can realize the switching of one-way cylinder in-line and return line; Described one-way cylinder is connected with the kind case, controls lifting and falling action of kind of case;
The node f that arranges on described hydraulic oil circuit is connected with forced air cooler hydraulic oil entry end; the hydraulic oil outlet end of described forced air cooler is connected with the hydraulic oil entry end of tubular type one-way valve; the hydraulic oil outlet end of tubular type one-way valve is connected with the return opening of hydraulic circuit; the tubular type one-way valve is arranged at the return opening place of hydraulic circuit; oil inlet pipe and return tube wrong when preventing that hydraulic control system from docking with power equipment; the tubular type one-way valve will guarantee that hydraulic circuit can't open, and hydraulic control system and forced air cooler are protected.
2. a kind of hydraulic control system for Sowing machine for potatoes according to claim 1 is characterized in that: described sensor group comprise sowing speed probe, fertilising speed probe, wheel speed sensor and position limit switch; Described sowing speed probe is arranged on sowing mechanism, for the rotating speed of Real-Time Monitoring sowing mechanism; Described fertilising speed probe is arranged on Fertilization Structure, for the rotating speed of Real-Time Monitoring fertilizing mechanism; Described ground wheel speed sensor is arranged on land wheel, the rotating speed while advancing for the Real-Time Monitoring land wheel; Sowing speed probe, fertilising speed probe, wheel speed sensor all by signal feed back to the control terminal that arranges in Direct box, control terminal is sowed signals of rotational speed sensor and land wheel signals of rotational speed sensor by contrast in real time, by the control ratio Flow valve, realize the control to oil hydraulic motor M1, finally make sowing mechanism rotation speed change and land wheel rotation speed change form closed loop control accurately, guarantee that plant is apart from the value that is stabilized in the original state setting; Control terminal is by contrasting in real time fertilising signals of rotational speed sensor and land wheel signals of rotational speed sensor, by the control ratio Flow valve, realize the control to oil hydraulic motor M2, finally make rotation speed change and the land wheel rotation speed change of fertilizing mechanism form closed loop control accurately, guarantee that dose is stabilized in the value that original state arranges; Described position limit switch is for setting the limit position that lifts and fall of mainframe, and position limit switch feeds back to control terminal by electrical signal, and control terminal, by the feedback electrical signal that receives, judges whether to control the hydraulic electric control system works; When mainframe lifts, when sowing machine was in non-sowing working state, position limit switch fed back to control terminal by feedback signal, and control terminal is after receiving the feedback signal of position limit switch, cut off the signal that all the sensors collects, make the hydraulic electric control system be in off position; When mainframe fell, sowing machine was in the sowing working state, and control terminal, according to the feedback signal of position limit switch, starts and implements to gather each sensor signal, makes the hydraulic electric control system in running order.
3. a kind of hydraulic control system for Sowing machine for potatoes according to claim 1, it is characterized in that: the hydraulic oil entry end of described safety valve is connected with node b, the hydraulic oil outlet end of safety valve is connected with node f, be used to controlling the maximum service pressure of hydraulic control system.
4. a kind of hydraulic control system for Sowing machine for potatoes according to claim 1, it is characterized in that: the hydraulic oil entry end of described unloading valve is connected with node b, the hydraulic oil outlet end of unloading valve is connected with node f, and when hydraulic control system was not worked, unloading valve was not in unloading condition; Hydraulic system is started working, and unloading valve is in closed condition, and system pressure is increased to working state pressure fast.
5. a kind of hydraulic control system for Sowing machine for potatoes according to claim 1, it is characterized in that: described proportional flow control valve comprises proportional flow control valve a and proportional flow control valve b, sequence valve comprises sequence valve a and sequence valve b; Before proportional flow control valve a and sequence valve a are arranged at oil hydraulic motor M1, be used to the rotating speed of controlling oil hydraulic motor M1 and the lowest starting pressure of oil hydraulic motor M1, guarantee oil hydraulic motor M1 smooth starting and stop; Before proportional flow control valve b and sequence valve b are arranged at oil hydraulic motor M2, be used to the rotating speed of controlling oil hydraulic motor M2 and the lowest starting pressure of oil hydraulic motor M2, guarantee oil hydraulic motor M2 smooth starting and stop.
6. a kind of hydraulic control system for Sowing machine for potatoes according to claim 1, is characterized in that: on described Direct box, also be provided with alarm, display screen, control key and function selecting key; Direct box is singly connected with fuse box, the control circuit in Direct box and sowing speed probe, fertilising speed probe, wheel speed sensor, position limit switch, spray medicine motor, proportional flow control valve, unloading valve, solenoid directional control valve and forced air cooler form and electrically connect; Control key comprises that power switch is be used to controlling the open and close of power supply in Direct box, spray medicine switch is for controlling the open and close of spray medicine motor, the hopper switch, for controlling solenoid directional control valve work, by the job control to one-way cylinder, is realized lifting and putting down of kind of case.
7. controlling method that is applicable to the hydraulic control system of Sowing machine for potatoes is characterized in that: comprise following control step:
1) according to agriculture requirement, the dose that the spacing in the rows of potato planting and when sowing need is set, thereby determine the linear corresponding relation of sowing mechanism rotational velocity and land wheel rotational velocity, determine the linear corresponding relation of fertilizing mechanism rotational velocity and land wheel rotational velocity;
2) by safety valve setting, control the maximum service pressure of hydraulic control system, by reduction valve, set the maximum service pressure of oil hydraulic motor, by sequence valve, set the lowest starting pressure of oil hydraulic motor;
3) open hydraulic control system, unloading valve is in closed condition, and pressure oil enters hydraulic control system by filter, and hydraulic control system pressure is increased to working state pressure fast; Sowing machine advances, land wheel rotates, control terminal is sowed signals of rotational speed sensor and land wheel signals of rotational speed sensor by contrast in real time, and a realizes the control to oil hydraulic motor M1 by the control ratio Flow valve, finally makes sowing mechanism rotation speed change and land wheel rotation speed change form closed loop control accurately; Control terminal is by contrasting in real time fertilising signals of rotational speed sensor and land wheel signals of rotational speed sensor, b realizes the control to oil hydraulic motor M2 by the control ratio Flow valve, finally makes the rotation speed change of fertilizing mechanism and land wheel rotation speed change form closed loop control accurately;
4) open the hopper switch, the control solenoid directional control valve is in to one-way cylinder and supplies oil condition, and the hydraulic oil entry end of Pilot operated check valve is communicated with pressure oil, and the oil circuit control of Pilot operated check valve is communicated with oil circuit, Pilot operated check valve is in unidirectional oil-feed state, and one-way cylinder will be planted case and be lifted gradually; Plant case and lift while putting in place, control solenoid directional control valve and be in the oil-break line state, the hydraulic oil pipeline sealing of one-way cylinder, thus the bonding action oil cylinder remains on current position state; In the time will putting down kind of case, control solenoid directional control valve and be in the oil return state, the oil circuit control of Pilot operated check valve is communicated with pressure oil, Pilot operated check valve is opened, the hydraulic oil entry end of Pilot operated check valve is communicated with oil circuit, in one-way cylinder, hydraulic oil flows out oil cylinder by Pilot operated check valve, plants case and puts down gradually;
5) when hydraulic control system only is in sowing and does not apply fertilizer state, control system will be closed proportional flow control valve b, make oil hydraulic motor M2 be in off working state, and sowing machine advances in process and only has oil hydraulic motor M1 work, completes seeding operation;
6) when hydraulic control system only is in fertilising and does not sow state, control system will be closed proportional flow control valve a, make oil hydraulic motor M1 be in off working state, and sowing machine advances in process and only has oil hydraulic motor M2 work, completes the fertilising operation;
7) when hydraulic control system is in the discharging state, sowing machine halts, the ground wheel speed is zero, control terminal will abandon implementing to gather the land wheel signals of rotational speed sensor, and be fixed value by land wheel signals of rotational speed sensor setting parameter, control terminal is sowed signals of rotational speed sensor and land wheel signals of rotational speed sensor by contrast, by control ratio Flow valve a, controls oil hydraulic motor M1 work, realizes that sowing mechanism unloads kind of an operation; Control terminal, by contrast apply fertilizer signals of rotational speed sensor and land wheel signals of rotational speed sensor, is controlled oil hydraulic motor M2 work by control ratio Flow valve b, realizes that fertilizing mechanism unloads fertile operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355064.9A CN103398034B (en) | 2013-08-15 | 2013-08-15 | A kind of hydraulic control system for Sowing machine for potatoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310355064.9A CN103398034B (en) | 2013-08-15 | 2013-08-15 | A kind of hydraulic control system for Sowing machine for potatoes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103398034A true CN103398034A (en) | 2013-11-20 |
| CN103398034B CN103398034B (en) | 2015-08-26 |
Family
ID=49561725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310355064.9A Active CN103398034B (en) | 2013-08-15 | 2013-08-15 | A kind of hydraulic control system for Sowing machine for potatoes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398034B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104106331A (en) * | 2014-07-10 | 2014-10-22 | 河北农哈哈机械集团有限公司 | Hydraulic driving device for draught fan of pneumatic type seeding machine |
| CN104564508A (en) * | 2015-01-12 | 2015-04-29 | 郑涵文 | Tidal power generation device |
| CN106342465A (en) * | 2016-11-03 | 2017-01-25 | 塔里木大学 | Hydraulic circuit of fertilizer applicator |
| CN107046818A (en) * | 2017-05-05 | 2017-08-18 | 华中农业大学 | A kind of speed drives rotary cultivator than controlled hydraulic |
| CN107950103A (en) * | 2017-12-26 | 2018-04-24 | 山东农业大学 | A kind of intelligence control hydraulic-driven aspirated-air type winter wheat broadcasting device |
| CN109488658A (en) * | 2019-01-15 | 2019-03-19 | 岭南师范学院 | A kind of hydraulic control system for dynamic seeding apparatus test-bed |
| CN109892053A (en) * | 2019-04-24 | 2019-06-18 | 广西双高农机有限公司 | A kind of simple bud section sugarcane planting machine |
| CN115625471A (en) * | 2022-10-31 | 2023-01-20 | 陕西风润智能制造研究院有限公司 | Device for realizing lifting and overturning of large-sized workpiece by utilizing gear rack |
| CN117158175A (en) * | 2023-10-24 | 2023-12-05 | 北京市农林科学院 | Fertilizing control method and device, electronic equipment and medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394697A (en) * | 1992-03-09 | 1995-03-07 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system |
| US6748884B1 (en) * | 2003-06-03 | 2004-06-15 | Case, Llc | Automatic liquid fertilizer rate system |
| US20040244659A1 (en) * | 2003-06-03 | 2004-12-09 | Dean Mayerle | Variable rate meter drive system |
| WO2005075833A1 (en) * | 2004-02-05 | 2005-08-18 | Hydac Fluidtechnik Gmbh | Circuit arrangement |
| JP2009249875A (en) * | 2008-04-03 | 2009-10-29 | Yanmar Co Ltd | Working machine |
| CN102167266A (en) * | 2011-01-24 | 2011-08-31 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN202172575U (en) * | 2011-08-01 | 2012-03-28 | 中机美诺科技股份有限公司 | Seeding, fertilizing and mulching combine for wide-ridge and double-row planting of potatoes |
| CN102748335A (en) * | 2012-07-02 | 2012-10-24 | 三一重型装备有限公司 | Hydraulic system and heading machine |
| CN203374542U (en) * | 2013-08-15 | 2014-01-01 | 中机美诺科技股份有限公司 | Hydraulic control system for potato seeder |
-
2013
- 2013-08-15 CN CN201310355064.9A patent/CN103398034B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394697A (en) * | 1992-03-09 | 1995-03-07 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system |
| US6748884B1 (en) * | 2003-06-03 | 2004-06-15 | Case, Llc | Automatic liquid fertilizer rate system |
| US20040244659A1 (en) * | 2003-06-03 | 2004-12-09 | Dean Mayerle | Variable rate meter drive system |
| WO2005075833A1 (en) * | 2004-02-05 | 2005-08-18 | Hydac Fluidtechnik Gmbh | Circuit arrangement |
| JP2009249875A (en) * | 2008-04-03 | 2009-10-29 | Yanmar Co Ltd | Working machine |
| CN102167266A (en) * | 2011-01-24 | 2011-08-31 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN202172575U (en) * | 2011-08-01 | 2012-03-28 | 中机美诺科技股份有限公司 | Seeding, fertilizing and mulching combine for wide-ridge and double-row planting of potatoes |
| CN102748335A (en) * | 2012-07-02 | 2012-10-24 | 三一重型装备有限公司 | Hydraulic system and heading machine |
| CN203374542U (en) * | 2013-08-15 | 2014-01-01 | 中机美诺科技股份有限公司 | Hydraulic control system for potato seeder |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104106331A (en) * | 2014-07-10 | 2014-10-22 | 河北农哈哈机械集团有限公司 | Hydraulic driving device for draught fan of pneumatic type seeding machine |
| CN104564508A (en) * | 2015-01-12 | 2015-04-29 | 郑涵文 | Tidal power generation device |
| CN106342465A (en) * | 2016-11-03 | 2017-01-25 | 塔里木大学 | Hydraulic circuit of fertilizer applicator |
| CN107046818A (en) * | 2017-05-05 | 2017-08-18 | 华中农业大学 | A kind of speed drives rotary cultivator than controlled hydraulic |
| CN107950103A (en) * | 2017-12-26 | 2018-04-24 | 山东农业大学 | A kind of intelligence control hydraulic-driven aspirated-air type winter wheat broadcasting device |
| CN109488658A (en) * | 2019-01-15 | 2019-03-19 | 岭南师范学院 | A kind of hydraulic control system for dynamic seeding apparatus test-bed |
| CN109488658B (en) * | 2019-01-15 | 2023-08-25 | 岭南师范学院 | Hydraulic control system for dynamic seed metering device test bed |
| CN109892053A (en) * | 2019-04-24 | 2019-06-18 | 广西双高农机有限公司 | A kind of simple bud section sugarcane planting machine |
| CN115625471A (en) * | 2022-10-31 | 2023-01-20 | 陕西风润智能制造研究院有限公司 | Device for realizing lifting and overturning of large-sized workpiece by utilizing gear rack |
| CN115625471B (en) * | 2022-10-31 | 2024-05-28 | 陕西风润智能制造研究院有限公司 | Device for realizing lifting and overturning of large-sized workpiece by utilizing gear rack |
| CN117158175A (en) * | 2023-10-24 | 2023-12-05 | 北京市农林科学院 | Fertilizing control method and device, electronic equipment and medium |
| CN117158175B (en) * | 2023-10-24 | 2024-02-20 | 北京市农林科学院 | Fertilizing control method and device, electronic equipment and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103398034B (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103398034A (en) | Hydraulic control system applicable to potato seeder | |
| CN103782695B (en) | Pneumatic type vegetable essence amount remote control sower | |
| CN105815006B (en) | Centrifugal small particle seed precision planter and its sowing amount control method | |
| CN106961890A (en) | Electric control air-blowing type precision seed sowing device | |
| CN107710986A (en) | A kind of robot type of seeding | |
| CN105302013A (en) | Adaptive seeding control method of multi-crop drill seeder | |
| CN106444507A (en) | Programmability-based non-tillage rotary seeding machine control system and method | |
| CN103749041A (en) | Seeding transplanter | |
| CN106489382A (en) | A kind of cell, land for growing field crops automation Universal seeder and its control method | |
| CN207626029U (en) | A kind of hillside Chinese medicine combined seed and fertilizer drill | |
| CN103636334A (en) | Fertilizer fixed-point adding device as well as fertilizer and seed fixed-point adding device and method | |
| CN108990485B (en) | Seeding uniformity control system and method for seeder | |
| CN103766048B (en) | Radar control precision planter | |
| CN104170565B (en) | Pneumatic seeder | |
| CN203374542U (en) | Hydraulic control system for potato seeder | |
| CN2925033Y (en) | Laminated deep-fertilizing precisive seeder | |
| CN209017426U (en) | seeding device | |
| CN203723034U (en) | Seeding and transplanting machine | |
| CN202857269U (en) | Radar measurement and control precision seeder | |
| CN204031783U (en) | A kind of tulip Mechanization sowing machine | |
| CN203167554U (en) | Seeding machine | |
| CN109729788A (en) | One inter-species kind seeder | |
| CN104285562A (en) | Plot experiment seeding machine | |
| CN204721836U (en) | No-till maize fertilization pesticide spraying all-in-one | |
| CN209489125U (en) | A kind of wet field block intelligence rotary tillage fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |