CN102714979A - Hydraulic system for self-propelled dwarf tree fruit harvester - Google Patents
Hydraulic system for self-propelled dwarf tree fruit harvester Download PDFInfo
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- CN102714979A CN102714979A CN2012102020335A CN201210202033A CN102714979A CN 102714979 A CN102714979 A CN 102714979A CN 2012102020335 A CN2012102020335 A CN 2012102020335A CN 201210202033 A CN201210202033 A CN 201210202033A CN 102714979 A CN102714979 A CN 102714979A
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Abstract
The invention relates to a hydraulic system for an agricultural harvester and particularly relates to a hydraulic system for a self-propelled dwarf tree fruit harvester. The hydraulic system comprises five independent hydraulic loops which share one oil tank; and an air cooler and a return oil filter are arranged on a total oil return path. The five hydraulic loops complete the actions and functions of lifting motion of the whole harvester, walking movement of the harvester, rotation movement of a fruit cleaning and selecting centrifugal fan, movement of a fruit conveying belt, rotation of a fruit and branch separator, and turning movement. Compared with the conventional mechanical and electrical transmission system, the hydraulic system is stable in transmission, compact in structure, reliable in performance, and capable of easily realizing various complicated mechanical actions of lifting, transmission, turning, walking and the like, so that the self-propelled dwarf tree fruit harvester is equipped with an excellent power system and can complete red date harvesting operation with high quality and high efficiency.
Description
Technical field
The present invention relates to the employed hydraulic system of agricultural harvesting machinery, especially a kind of hydraulic system that is used for self-propelled dwarf trees fruit reaping machine.
Background technology
Red date nutrient enriches and jujube tree can be checked winds and fixed drifting sand, and its economic worth and the ecological value are high.Constantly to advance to defend and control sand be master's forestry ecosystem construction, be that master's the forestry industry system construction and the ecological culture system construction of rich connotation are the important directions of Xinjiang 12 forest developments with the characteristic industry of planting forest or fruit tress.At present Xinjiang red date cultivated area has broken through 6,000,000 mu, wherein downgrades dense planting red date cultivated area and has broken through 2,000,000 mu, and downgrade dense planting red date cultivated area every year with 30% speed increase, and development is swift and violent.
At present, the main manual work that relies on of red date results exists labour intensity big, and productivity ratio is low, loses problems such as big.Labor shortage, labor cost go up and become increasingly conspicuous; Be badly in need of development red date harvest operation facility; Improve results efficient and results quality, alleviate the nervous problem of present time in busy farming season labour, and the big force urges of ability is downgraded the development of the standardization of dense planting red date, large-scale planting technology.
The mechanized that the red date mechanized harvest is a complicacy, difficulty is big.Although countries such as America and Europe have just realized the mechanization that woods is really gathered in the crops the sixties in 20th century, because the red date plantation mainly concentrates on China's (only there is a small amount of commercialization plantation in Korea S), the research of external red date harvest machinery aspect does not appear in the newspapers.Domestic, Xinjiang Academy of Land Reclamation &. Cultivation had developed 4YS-24 type red date reaping machine in 2009, used with Dongfanghong 400 type tractors, and the large-scale jujube tree that is only applicable to gather in the crops trunk diameter >=10cm is inappropriate for the results of downgrading the dense planting red date.
Therefore; Develop a kind of red date reaping machine with independent intellectual property right, dependable performance, cheap, suitable Xinjiang actual production conditions and the condition of popularization; Be to realize the gather key of mechanization of red date; Reduce red date results production cost especially, liberation labour, the only way of promotion Xinjiang red date industry entire mechanization.
Chinese patent ZL201120201918.4; Disclose the self-propelled dwarf trees fruit of a kind of hydraulic-driven reaping machine, it is characterized in that on the support assembly upper lateral part, installing successively driving controlling organization assembly, engine and hydraulic pump system; On four upright beams of support assembly, install hydraulic jack respectively; On the cylinder rod termination of each hydraulic jack, be rotatably mounted hydraulic-driven road wheel assembly, engine is connected with hydraulic pump system, and oil pipe is communicated with hydraulic pump system respectively at hydraulic jack, hydraulic-driven road wheel assembly; Drive the controlling organization assembly and be connected with hydraulic pump system, so far constitute the hydraulic-driven self-propelled chassis with engine; Two exciting main shafts correspondence rotationally are installed in the middle of the support assembly on the downside position; Between four upright beams; The exciting motor is fitted on the exciting main shaft upper end; The exciting driving lever is packed on the exciting main shaft from top to bottom successively, and the exciting motor is communicated with hydraulic pump system, so far constitutes exciting device; On the support assembly downside position, be positioned at equipped relatively two fruit conveying plants in position, both sides and collection fruit plate below the exciting device, the collection fruit plate of a side overlaps with the fruit conveying plant of adjacent the same side; Equipped blower fan on the fruit conveying plant, blower fan is connected with engine respectively with the fruit conveying plant.
Adopt the self-propelled dwarf trees fruit reaping machine of said structure to gather; Multiple working procedures such as fruit branch separation, conveying and removal of impurities that can disposable completion red date; From improving the results efficient of reaping machine; For woods fruit reaping machine is equipped with a cover high-performance, high efficiency, stable strong dynamical system, can play important effect to the increasing both production and income of red date results.Hydraulic system is combined with self-propelled woods fruit reaping machine; Promptly use hydraulic system power to be provided as woods fruit reaping machine; The structure of woods fruit reaping machine is simplified; Reduce the processing and manufacturing cost, and can make the action of woods fruit reaping machine corresponding sensitive more, make it possess good characteristics such as controlling easy, high-power power output is stable, noise reduction.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, stability is strong, performance is good, efficient is high, with the matching used hydraulic system that is used for self-propelled dwarf trees fruit reaping machine of corresponding woods fruit reaping machine.
Hydraulic system provided by the present invention discloses the self-propelled dwarf trees of a kind of hydraulic-driven at Chinese patent ZL201120201918.4 and has really developed on the reaping machine architecture basics.
The self-propelled dwarf trees fruit of said hydraulic-driven reaping machine, concrete structure is following:
On support assembly 2 upper lateral parts, install successively and drive controlling organization assembly 1, engine 15 and hydraulic pump system 14; On four upright beams 3 of support assembly 2, install complete machine hoist cylinder 4 respectively; On the cylinder rod termination of each complete machine hoist cylinder 4, be rotatably mounted hydraulic-driven road wheel assembly 5; Engine 15 is connected with hydraulic pump system 14; Oil pipe is communicated with hydraulic pump system 14 respectively with complete machine hoist cylinder 4, hydraulic-driven road wheel assembly 5, drive controlling organization assembly 1 and be connected with hydraulic pump system 14 with engine 15, so far constitutes the hydraulic-driven self-propelled chassis; Two exciting main shafts 9 correspondence rotationally are installed in the middle of the support assembly 2 on the downside positions; Between four upright beams 3; Exciting motor 16 is fitted on exciting main shaft 9 upper ends; Vibration driving lever 10 is packed on the exciting main shaft 9 from top to bottom successively, and exciting motor 16 is communicated with hydraulic pump system 14, so far constitutes exciting device.
On the support assembly 2 downside positions, be positioned at the collection fruit plate 17 of equipped relatively two the fruit conveying plants 7 in position, both sides and collection fruit plate 17, one sides below the exciting device and fruit conveying plant 7 overlap joints of adjacent the same side.
Equipped blower fan 8 on fruit conveying plant 7, blower fan 8 is connected with engine 15 respectively with fruit conveying plant 7.Two exciting main shafts 9 are forwards stirred the amplitude of oscillation angle of woods fruit to adjacent inside portion, the rear opposite with facility direction of advance D to C when B stirs woods amplitude of oscillation angle really greater than its backswing, and two exciting main shaft 9 synchronous swaying directions are opposite.
In the work, the self-propelled dwarf trees of hydraulic-driven fruit reaping machine forwards moves, and will downgrade fruit branch and sigh in the middle of the exciting device; Vibration driving lever 10 on the exciting device inserts in the tree crown, because vibration motor 16 at the reciprocally swinging of circumferencial direction, makes fruit fall from setting to be impacted to vibrate; Drop on the collection fruit plate 17, fruit tumbles on the fruit conveying plant 7 along collection fruit plate 17, and carries the collection dress backward; In course of conveying; The blower fan 8 of conveying plant upside carries out assorted clearly, removes impurity such as leaf, accomplishes harvest operation.The flexible lift adjustment that can realize and accomplish complete machine of four complete machine hoist cylinders 4 to satisfy the woods fruit harvest operation needs different with adapting to height, guarantees operation quality and efficient.
According to the course of work of the self-propelled dwarf trees of hydraulic-driven fruit reaping machine, can conclude that to sum up action and function that the self-propelled dwarf trees fruit of hydraulic-driven reaping machine needs hydraulic system to accomplish following:
(1) elevating movement of complete machine: the up-down of complete machine hoist cylinder 4 can realize the up-down of complete machine, can regulate its height according to the fluctuating on ground, and it is up to the standard.Complete machine rises when transportation, walking, and complete machine descends during work, by 4 controls of complete machine hoist cylinder.
(2) walking movement of reaping machine: intend and adopt four wheel drive, rear-axle steering, rear wheel drive under the normal condition, but also front and back wheel drives simultaneously, is driven by walking variable displacement motor 6.
(3) fruit is cleaned rotatablely moving of centrifugal blower: during blower fan work, can be fruit and wind regime endlessly is provided separating of light foreign material, further improve and clean effect, driven by fruit cleaning fan motor 11.
(4) motion of fruit conveyer belt: the fruit conveyer belt is driven by swiveling wheel, and fruit is transported to the top of reaping machine, has guaranteed the continuity that fruit is carried, and carries motor 13 to drive by fruit.
(5) really, the rotation of branch separator: really, the rotation of branch separator can vibrate fruit from fruit tree, become the main function components that fruit, branch separate, by fruit, 16 drivings of a branch separator vibration motor.
(6) go to action: self-propelled red date reaping machine will be accomplished the complete machine walking function, has adopted fluid-link steering, its characteristics: turn to easy and flexible, the process balance is by turning to oil cylinder 12 controls.
A kind of hydraulic system that is used for the self-propelled dwarf trees fruit of hydraulic-driven reaping machine; It is characterized in that: running gear adopts closed circuit; Its compact conformation, efficient are high, performance is good; Car load work moves and turns to go up and down to have adopted advanced load-sensitive hydraulic pressure open circuit, thereby it is best to reach the transmission energy utilization rate.
This hydraulic system is an open system, comprises five independent hydraulically controlled loops, five shared fuel tanks 18 of hydraulic circuit, and total oil return line is provided with forced air cooler 19 and return filter 20, and said five hydraulic circuits are respectively:
(1) hydraulic circuit one: comprise the axial piston variable capacity oil pump 21.1 that links to each other with fuel tank 18; Said axial piston variable capacity oil pump 21.1 links to each other with motor control reversal valve group 21.2; Said motor control reversal valve group 21.2 is made up of solenoid directional control valve 21.3, choke valve 21.4 and check valve 21.5; Each reversal valve carries motor 13, fruit cleaning fan motor 11 to be connected with fruit respectively in the said motor control reversal valve group 21.2; Between each reversal valve and said each motor, pressure measuring tie-in check valve 21.6 is housed, is used for detecting the actual working pressure of each duplexure, choke valve 21.4 is used for controlling the rotating speed of motor;
(2) hydraulic circuit two: comprise the high-pressure gear pump 22.1 that links to each other with fuel tank 18; The fuel-displaced pipeline of described high-pressure gear pump 22.1 is provided with fruit, branch separator vibration motor 16; Said fruit, branch separator vibration motor 16 connect for parallel with accumulator 22.2; The oil-out place of said high-pressure gear pump 22.1 is provided with electromagnetic relief valve 22.3, check valve 22.4; Come the initialization system MTP respectively and prevent that hydraulic oil from flowing backwards, also be provided with solenoid directional control valve 22.5, one-way throttle valve 22.6, be used for controlling the rotating speed and the frequency of motor; Said accumulator 22.2 is connected on the oil circuit with high-pressure stop valve 22.7, and said accumulator 15 is the pressure that in time replenishes on the oil circuit;
(3) hydraulic circuit three: comprise the gear pump 23.1 that links to each other with fuel tank 18; Said gear pump 23.1 links to each other with steering gear 23.2; Wherein two oil-outs of said steering gear 23.2 are connected with turning to oil cylinder 12; Wherein another oil-out is connected with fuel tank 18, and when not turning to, gear pump 23.1 directly communicates with fuel tank 18; Be provided with electromagnetic relief valve 23.3, pressure gauge 23.4, pressure gauge switch 23.5, pressure-gradient control valve 23.6 between said gear pump 23.1 and the steering gear 23.2; Said electromagnetic relief valve 23.3 is used for setting MTP, and said steering gear 23.2 is made up of check valve 23.7, solenoid directional control valve 23.8, reversing motor 23.9, overflow valve 23.10, check valve 23.11, and said two overflow valves 23.10 and two check valves 23.11 be parallel to be connected and turn to oil cylinder 12 formation loops; The oil-out of said check valve 23.11 and overflow valve 23.10 is connected with fuel tank 18, and described two overflow valves 23.10 limit the maximum pressure of system, when oil pressure is too high; This valve is opened; Fluid flows back to fuel tank, and two check valves 23.11 play a role when manual work turns to, and is convenient to oil and refluxes from fuel tank; The place can also be provided with heat exchanger and filter at said oil return opening, be used for cooling, filter hydraulic oil;
(4) hydraulic circuit four: comprise the gear pump 23.1 that links to each other with fuel tank 18; Wherein said gear pump 23.1 links to each other with complete machine hoist cylinder 4; Being provided with electromagnetic relief valve 23.3, pressure gauge 23.4, pressure gauge switch 23.5, pressure-gradient control valve 23.6, manual multi-path reversing valve 24.1, tubular type balanced valve 24.2, flow divider-combiner 24.3, tubular type hydraulic control one-way valve 24.4 between said gear pump 23.1 and the complete machine hoist cylinder 4 links to each other; Said 24.4 parallel connections and two pairs of complete machine hoist cylinder 4 formation loops of two tubular type hydraulic control one-way valves, the oil-out of said check valve 24.5 and overflow valve 24.6 is connected with fuel tank 18; Said manual multi-path reversing valve 24.1 is used for controlling the up-down of complete machine hoist cylinder 4; Still can easy motion when said tubular type balanced valve 24.2 makes oil cylinder go up and down change; Said flow divider-combiner 24.3 makes hydraulic jack under the uneven situation of load; Still can obtain about equally or proportional flow, realize being synchronized with the movement of oil cylinder, said tubular type hydraulic control one-way valve 24.4 guarantees that oil cylinder pins reliably;
(5) hydraulic circuit five: comprise the slippage pump 25.1 that links to each other with fuel tank 18; Said slippage pump 25.1 constitutes a loop with walking variable displacement motor 6; Said slippage pump 25.1 links to each other with walking variable displacement motor 6, loop, variable pump 25.3 place through speed change valve group 25.2; Accumulator 25.4 and 25.2 parallel connections of speed change valve group; On return line, be provided with oil suction filter 25.5, forced air cooler 19; Said variable pump 25.3 fuel-displaced pipelines are provided with two high-pressure overflow valves 25.6 and two check valves 25.7, and said two high-pressure overflow valves 25.6 and two 25.7 parallel connections and walking variable displacement motor 6 formation loops of check valve, said loop is connected with fuel tank 18 through flushing valve 25.8, flow divider 25.9.
In oil hydraulic circuit five; The hydraulic oil that slippage pump 25.1 initially provides is in variable pump 25.3 and walking variable displacement motor 6 inner loop; Self-propelled dwarf trees fruit reaping machine is straight line moving at the uniform velocity; When changing the flow of variable pump 25.3, the also corresponding change of rotating speed of walking variable displacement motor 6, thereby the speed of control walking.Change the direction of variable pump 25.3, can change the direction of motion of walking variable displacement motor 6, make self-propelled dwarf trees fruit reaping machine reverse driving thereby change.Wherein, high-pressure overflow valve 25.6 has played buffer starting or the effect of the impulsive force when turning to.Flushing valve 25.8 reduces the oil circuit temperature and improves filter effect.
The self-propelled dwarf trees fruit of the hydraulic-driven of said structure reaping machine is in the process of carrying out the red date results; Multiple function that the fruit branch that can realize red date separates, fruit is cleaned, fruit transports, complete machine goes up and down, complete machine is walked; Improved the results efficient of red date greatly; Reduce labour cost, shortened the time of red date results greatly.Be the structure of simplification complete machine, and be convenient to control, the key operation parts on the self-propelled dwarf trees fruit of the hydraulic-driven reaping machine all rely on hydraulic motor to drive, and hydraulic system plays important effect in this reaping machine.
Compared with prior art; The hydraulic system that is used to press the self-propelled dwarf trees fruit of driving reaping machine provided by the present invention; Stable drive, dependable performance is easy to realize up-down, transmission, turns to, multiple complicated mechanical action such as walking; Make self-propelled dwarf trees fruit reaping machine have the dynamical system of function admirable, and then can accomplish the red date harvest operation high-quality, efficiently.
Description of drawings
Fig. 1 is the main TV structure sketch map of self-propelled dwarf trees fruit reaping machine in the embodiment of the invention.
Fig. 2 is the structural representation of Fig. 1 side-looking.
The structural representation that Fig. 3 overlooks for Fig. 1.
Fig. 4 is the hydraulic system oil circuit sketch map in the embodiment of the invention.
As shown in the figure: 1 for driving the controlling organization assembly, and 2 is support assembly, and 3 are upright beam, and 4 is the complete machine hoist cylinder, and 5 is the road wheel assembly; 6 are the walking variable displacement motor, and 7 is the fruit conveying plant, and 8 is blower fan, and 9 is the exciting main shaft; 10 are the vibration driving lever, and 11 is blower motor, and 12 for turning to oil cylinder, and 13 are fruit conveying motor; 14 is hydraulic pump system, and 15 is engine, and 16 are the vibration motor, and 17 are collection fruit plate;
18 is fuel tank, and 19 is forced air cooler, and 20 is return filter;
21 is that hydraulic circuit one, 21.1 is the axial piston variable capacity oil pump, and 21.2 are motor control reversal valve group, and 21.3 is that solenoid directional control valve, 21.4 is choke valve, and 21.5 is check valve, and 21.6 is the pressure measuring tie-in check valve;
22 is that hydraulic circuit two, 22.1 is a high-pressure gear pump, and 22.2 is accumulator, and 22.3 is electromagnetic relief valve, and 22.4 is check valve, and 22.5 is solenoid directional control valve, and 22.6 is one-way throttle valve, and 22.7 is high-pressure stop valve;
23 is that hydraulic circuit three, 23.1 is a gear pump, and 23.2 are steering gear, and 23.3 is electromagnetic relief valve; 23.4 be pressure gauge, 23.5 is the pressure gauge switch, 23.6 is pressure-gradient control valve, and 23.7 is check valve; 23.8 be solenoid directional control valve, 23.9 is reversing motor, 23.10 is overflow valve, and 23.11 is check valve;
24 is that hydraulic circuit four, 24.1 is a manual multi-path reversing valve, and 24.2 is the tubular type balanced valve, and 24.3 is flow divider-combiner, and 24.4 is the tubular type hydraulic control one-way valve, and 24.5 is check valve, and 24.6 is overflow valve;
25 hydraulic circuits five, 25.1 are slippage pump, and 25.2 is the speed change valve group, and 25.4 is accumulator, and 25.5 are the oil suction filter, and 25.6 is high-pressure overflow valve, and 25.7 is check valve, and 25.8 for flushing valve, 25.9 is a flow divider, and 25.10 is pilot valve;
26 is liquid level gauge, and 27 is temperature sensor, and 28 is fuel outlet valve, and 29 is air cleaner.
Embodiment
Embodiment:
With reference to accompanying drawing 1-accompanying drawing 4, following with the concrete structure of the supporting processing tomato combined harvester of present embodiment:
On support assembly 2 upper lateral parts, install successively and drive controlling organization assembly 1, engine 15 and hydraulic pump system 14; On four upright beams 3 of support assembly 2, install complete machine hoist cylinder 4 respectively; On the cylinder rod termination of each complete machine hoist cylinder 4, be rotatably mounted hydraulic-driven road wheel assembly 5; Engine 15 is connected with hydraulic pump system 14; Oil pipe is communicated with hydraulic pump system 14 respectively with complete machine hoist cylinder 4, hydraulic-driven road wheel assembly 5, drive controlling organization assembly 1 and be connected with hydraulic pump system 14 with engine 15, so far constitutes the hydraulic-driven self-propelled chassis; Two exciting main shafts 9 correspondence rotationally are installed in the middle of the support assembly 2 on the downside positions; Between four upright beams 3; Exciting motor 16 is fitted on exciting main shaft 9 upper ends; Vibration driving lever 10 is packed on the exciting main shaft 9 from top to bottom successively, and exciting motor 16 is communicated with hydraulic pump system 14, so far constitutes exciting device.
On the support assembly 2 downside positions, be positioned at the collection fruit plate 17 of equipped relatively two the fruit conveying plants 7 in position, both sides and collection fruit plate 17, one sides below the exciting device and fruit conveying plant 7 overlap joints of adjacent the same side.
Equipped blower fan 8 on fruit conveying plant 7, blower fan 8 is connected with engine 15 respectively with fruit conveying plant 7.Two exciting main shafts 9 are forwards stirred the amplitude of oscillation angle of woods fruit to adjacent inside portion, the rear opposite with facility direction of advance D to C when B stirs woods amplitude of oscillation angle really greater than its backswing, and two exciting main shaft 9 synchronous swaying directions are opposite.
In the work, the self-propelled dwarf trees of hydraulic-driven fruit reaping machine forwards moves, and will downgrade fruit branch and sigh in the middle of the exciting device; Vibration driving lever 10 on the exciting device inserts in the tree crown, because vibration motor 16 at the reciprocally swinging of circumferencial direction, makes fruit fall from setting to be impacted to vibrate; Drop on the collection fruit plate 17, fruit tumbles on the fruit conveying plant 7 along collection fruit plate 17, and carries the collection dress backward; In course of conveying; The blower fan 8 of conveying plant upside carries out assorted clearly, removes impurity such as leaf, accomplishes harvest operation.The flexible lift adjustment that can realize and accomplish complete machine of four complete machine hoist cylinders 4 to satisfy the woods fruit harvest operation needs different with adapting to height, guarantees operation quality and efficient.
According to the course of work of the self-propelled dwarf trees of hydraulic-driven fruit reaping machine, can conclude that to sum up action and function that the self-propelled dwarf trees fruit of hydraulic-driven reaping machine needs hydraulic system to accomplish following:
(1) elevating movement of complete machine: the up-down of complete machine hoist cylinder 4 can realize the up-down of complete machine, can regulate its height according to the fluctuating on ground, and it is up to the standard.Complete machine rises when transportation, walking, and complete machine descends during work, by 4 controls of complete machine hoist cylinder.
(2) walking movement of reaping machine: intend and adopt four wheel drive, rear-axle steering, rear wheel drive under the normal condition, but also front and back wheel drives simultaneously, is driven by walking variable displacement motor 6.
(3) fruit is cleaned rotatablely moving of centrifugal blower: during blower fan work, can be fruit and wind regime endlessly is provided separating of light foreign material, further improve and clean effect, driven by fruit cleaning fan motor 11.
(4) motion of fruit conveyer belt: the fruit conveyer belt is driven by swiveling wheel, and fruit is transported to the top of reaping machine, has guaranteed the continuity that fruit is carried, and carries motor 13 to drive by fruit.
(5) really, the rotation of branch separator: really, the rotation of branch separator can vibrate fruit from fruit tree, become the main function components that fruit, branch separate, by fruit, 16 drivings of a branch separator vibration motor.
(6) go to action: self-propelled red date reaping machine will be accomplished automatic walking function, must realize fluid-link steering, by turning to oil cylinder 12 controls.
A kind of hydraulic system that is used for above-mentioned self-propelled dwarf trees fruit reaping machine; This hydraulic system is an open system, comprises five independent hydraulically controlled loops, five shared fuel tanks 18 of hydraulic circuit; Total oil return line is provided with forced air cooler 19 and return filter 20, and said five hydraulic circuits are respectively:
(1) hydraulic circuit one: comprise the axial piston variable capacity oil pump 21.1 that links to each other with fuel tank 18; Said axial piston variable capacity oil pump 21.1 links to each other with motor control reversal valve group 21.2; Said motor control reversal valve group 21.2 is made up of solenoid directional control valve 21.3, choke valve 21.4 and check valve 21.5; Each reversal valve carries motor 13, fruit cleaning fan motor 11 to be connected with fruit respectively in the said motor control reversal valve group 21.2; Between each reversal valve and said each motor, pressure measuring tie-in check valve 21.6 is housed, is used for detecting the actual working pressure of each duplexure, choke valve 21.4 is used for controlling the rotating speed of motor;
(2) hydraulic circuit two: comprise the high-pressure gear pump 22.1 that links to each other with fuel tank 18; The fuel-displaced pipeline of described high-pressure gear pump 22.1 is provided with fruit, branch separator vibration motor 16; Said fruit, branch separator vibration motor 16 connect for parallel with accumulator 22.2; The oil-out place of said high-pressure gear pump 22.1 is provided with electromagnetic relief valve 22.3, check valve 22.4; Come the initialization system MTP respectively and prevent that hydraulic oil from flowing backwards, also be provided with solenoid directional control valve 22.5, one-way throttle valve 22.6, be used for controlling the rotating speed and the frequency of motor; Said accumulator 22.2 is connected on the oil circuit with high-pressure stop valve 22.7, and said accumulator 15 is the pressure that in time replenishes on the oil circuit;
(3) hydraulic circuit three: comprise the gear pump 23.1 that links to each other with fuel tank 18; Said gear pump 23.1 links to each other with steering gear 23.2; Wherein two oil-outs of said steering gear 23.2 are connected with turning to oil cylinder 12; Wherein another oil-out is connected with fuel tank 18, and when not turning to, gear pump 23.1 directly communicates with fuel tank 18; Be provided with electromagnetic relief valve 23.3, pressure gauge 23.4, pressure gauge switch 23.5, pressure-gradient control valve 23.6 between said gear pump 23.1 and the steering gear 23.2; Said electromagnetic relief valve 23.3 is used for setting MTP, and said steering gear 23.2 is made up of check valve 23.7, solenoid directional control valve 23.8, reversing motor 23.9, overflow valve 23.10, check valve 23.11, and said two overflow valves 23.10 and two check valves 23.11 be parallel to be connected and turn to oil cylinder 12 formation loops; The oil-out of said check valve 23.11 and overflow valve 23.10 is connected with fuel tank 18, and described two overflow valves 23.10 limit the maximum pressure of system, when oil pressure is too high; This valve is opened; Fluid flows back to fuel tank, and two check valves 23.11 play a role when manual work turns to, and is convenient to oil and refluxes from fuel tank; The place can also be provided with heat exchanger and filter at said oil return opening, be used for cooling, filter hydraulic oil;
(4) hydraulic circuit four: comprise the gear pump 23.1 that links to each other with fuel tank 18; Wherein said gear pump 23.1 links to each other with complete machine hoist cylinder 4; Being provided with electromagnetic relief valve 23.3, pressure gauge 23.4, pressure gauge switch 23.5, pressure-gradient control valve 23.6, manual multi-path reversing valve 24.1, tubular type balanced valve 24.2, flow divider-combiner 24.3, tubular type hydraulic control one-way valve 24.4 between said gear pump 23.1 and the complete machine hoist cylinder 4 links to each other; Said 24.4 parallel connections and two pairs of complete machine hoist cylinder 4 formation loops of two tubular type hydraulic control one-way valves, the oil-out of said check valve 24.5 and overflow valve 24.6 is connected with fuel tank 18; Said manual multi-path reversing valve 24.1 is used for controlling the up-down of complete machine hoist cylinder 4; Still can easy motion when said tubular type balanced valve 24.2 makes oil cylinder go up and down change; Said flow divider-combiner 24.3 makes hydraulic jack under the uneven situation of load; Still can obtain about equally or proportional flow, realize being synchronized with the movement of oil cylinder, said tubular type hydraulic control one-way valve 24.4 guarantees that oil cylinder pins reliably;
(5) hydraulic circuit five: comprise the slippage pump 25.1 that links to each other with fuel tank 18; Said slippage pump 25.1 constitutes a loop with walking variable displacement motor 6; Said slippage pump 25.1 links to each other with walking variable displacement motor 6, loop, variable pump 25.3 place through speed change valve group 25.2; Accumulator 25.4 and 25.2 parallel connections of speed change valve group; On return line, be provided with oil suction filter 25.5, forced air cooler 19; Said variable pump 25.3 fuel-displaced pipelines are provided with two high-pressure overflow valves 25.6 and two check valves 25.7, and said two high-pressure overflow valves 25.6 and two 25.7 parallel connections and walking variable displacement motor 6 formation loops of check valve, said loop is connected with fuel tank 18 through flushing valve 25.8, flow divider 25.9.
In oil hydraulic circuit five; The hydraulic oil that slippage pump 25.1 initially provides is in variable pump 25.3 and walking variable displacement motor 6 inner loop; Self-propelled dwarf trees fruit reaping machine is straight line moving at the uniform velocity; When changing the flow of variable pump 25.3, the also corresponding change of rotating speed of walking variable displacement motor 6, thereby the speed of control walking.Change the direction of variable pump 25.3, can change the direction of motion of walking variable displacement motor 6, make self-propelled dwarf trees fruit reaping machine reverse driving thereby change.Wherein, high-pressure overflow valve 25.6 has played buffer starting or the effect of the impulsive force when turning to.Flushing valve 25.8 reduces the oil circuit temperature and improves filter effect.
The self-propelled dwarf trees fruit of the hydraulic-driven of said structure reaping machine is in the process of carrying out the red date results; Multiple function that the fruit branch that can realize red date separates, fruit is cleaned, fruit transports, complete machine goes up and down, complete machine is walked; Improved the results efficient of red date greatly; Reduce labour cost, shortened the time of red date results greatly.Be the structure of simplification complete machine, and be convenient to control, the key operation parts on the self-propelled dwarf trees fruit of the hydraulic-driven reaping machine all rely on hydraulic motor to drive, and hydraulic system plays important effect in this reaping machine.
Claims (2)
1. one kind is used for the really hydraulic system of reaping machine of self-propelled dwarf trees; It is characterized in that this hydraulic system comprises five independent hydraulically controlled loops; Five shared fuel tanks of hydraulic circuit (18), total oil return line is provided with forced air cooler (19) and return filter (20), and said five hydraulic circuits are respectively:
(1) hydraulic circuit one: comprise the axial piston variable capacity oil pump (21.1) that links to each other with fuel tank (18); Said axial piston variable capacity oil pump (21.1) links to each other with motor control reversal valve group (21.2); Said motor control reversal valve group (21.2) is made up of solenoid directional control valve (21.3), choke valve (21.4) and check valve (21.5); Each reversal valve carries motor (13), fruit cleaning fan motor (11) to be connected with fruit respectively in the said motor control reversal valve group (21.2), between each reversal valve and said each motor, pressure measuring tie-in check valve (21.6) is housed;
(2) hydraulic circuit two: comprise the high-pressure gear pump (22.1) that links to each other with fuel tank (18); The fuel-displaced pipeline of described high-pressure gear pump (22.1) is provided with fruit, branch separator vibration motor (16); Said fruit, branch separator vibration motor (16) connect for parallel with accumulator (22.2); The oil-out place of said high-pressure gear pump (22.1) is provided with electromagnetic relief valve (22.3), check valve (22.4), solenoid directional control valve (22.5), one-way throttle valve (22.6), and said accumulator (22.2) is connected on the oil circuit with high-pressure stop valve (22.7)
(3) hydraulic circuit three: comprise the gear pump (23.1) that links to each other with fuel tank (18); Said gear pump (23.1) links to each other with steering gear (23.2); Wherein two oil-outs of said steering gear (23.2) are connected with turning to oil cylinder (12); Wherein another oil-out is connected with fuel tank (18); Be provided with electromagnetic relief valve (23.3), pressure gauge (23.4), pressure gauge switch (23.5), pressure-gradient control valve (23.6) between said gear pump (23.1) and the steering gear (23.2); Said steering gear (23.2) is made up of check valve (23.7), solenoid directional control valve (23.8), reversing motor (23.9), overflow valve (23.10), check valve (23.11), and parallel the connection with turning to oil cylinder (12) of said two overflow valves (23.10) and two check valves (23.11) constitutes the loop;
(4) hydraulic circuit four: comprise the gear pump (23.1) that links to each other with fuel tank (18); Wherein said gear pump (23.1) links to each other with complete machine hoist cylinder (4); Being provided with electromagnetic relief valve (23.3), pressure gauge (23.4), pressure gauge switch (23.5), pressure-gradient control valve (23.6), manual multi-path reversing valve (24.1), tubular type balanced valve (24.2), flow divider-combiner (24.3), tubular type hydraulic control one-way valve (24.4) between said gear pump (23.1) and the complete machine hoist cylinder (4) links to each other; The parallel connection with two pairs of complete machine hoist cylinders (4) of said two tubular type hydraulic control one-way valves (24.4) constitutes the loop, and the oil-out of said check valve (24.5) and overflow valve (24.6) is connected with fuel tank (18);
(5) hydraulic circuit five: comprise the slippage pump (25.1) that links to each other with fuel tank (18); Said slippage pump (25.1) constitutes a loop with walking variable displacement motor (6); Said slippage pump (25.1) links to each other with walking variable displacement motor (6), loop, variable pump (25.3) place through speed change valve group (25.2); Accumulator (25.4) is connected with speed change valve group (25.2) is parallel; On return line, be provided with oil suction filter (25.5), forced air cooler (19); The fuel-displaced pipeline of said variable pump (25.3) is provided with two high-pressure overflow valves (25.6) and two check valves (25.7), and parallel the connection with walking variable displacement motor (6) of said two high-pressure overflow valves (25.6) and two check valves (25.7) constitutes the loop, and said loop is connected with fuel tank (18) through flushing valve (25.8), flow divider (25.9).
2. the hydraulic system that is used for self-propelled dwarf trees fruit reaping machine as claimed in claim 1 is characterized in that being equipped with on the described fuel tank liquid level gauge (26), temperature sensor (27), fuel outlet valve (28) and air cleaner (29).
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| CN201210202033.5A CN102714979B (en) | 2012-06-19 | 2012-06-19 | Hydraulic system for self-propelled dwarf tree fruit harvester |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210202033.5A CN102714979B (en) | 2012-06-19 | 2012-06-19 | Hydraulic system for self-propelled dwarf tree fruit harvester |
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| CN102714979A true CN102714979A (en) | 2012-10-10 |
| CN102714979B CN102714979B (en) | 2014-03-26 |
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| CN201210202033.5A Expired - Fee Related CN102714979B (en) | 2012-06-19 | 2012-06-19 | Hydraulic system for self-propelled dwarf tree fruit harvester |
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| CN102966611A (en) * | 2012-11-13 | 2013-03-13 | 上海汇益控制系统股份有限公司 | Hydraulic fixing device for shipped wind power tower |
| CN103295453A (en) * | 2013-06-03 | 2013-09-11 | 哈尔滨工程大学 | Full hydraulic engineering machinery travelling system experimental device based on four variables |
| CN103843531A (en) * | 2014-03-28 | 2014-06-11 | 石河子大学 | Fruit picking system |
| CN104235085A (en) * | 2013-06-13 | 2014-12-24 | 苏州安柏高科农业装备研发有限公司 | Hydraulic power system of high-speed combined harvesting and planting management machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104235085A (en) * | 2013-06-13 | 2014-12-24 | 苏州安柏高科农业装备研发有限公司 | Hydraulic power system of high-speed combined harvesting and planting management machine |
| CN103843531A (en) * | 2014-03-28 | 2014-06-11 | 石河子大学 | Fruit picking system |
| CN105284287A (en) * | 2015-11-12 | 2016-02-03 | 南京林业大学 | Harvesting machine for caragana microphylla seeds |
| CN108124588A (en) * | 2016-11-30 | 2018-06-08 | 佳木斯市华成机械制造有限公司 | Self-propelled large-ridge double-row full automatic high efficiency fruit harvester |
| CN108978772A (en) * | 2018-07-20 | 2018-12-11 | 广西柳工机械股份有限公司 | Load-sensitive steering hydraulic system and loading machine |
| CN108978772B (en) * | 2018-07-20 | 2020-11-20 | 广西柳工机械股份有限公司 | Load-sensitive steering hydraulic system and loader |
| CN109328630A (en) * | 2018-11-19 | 2019-02-15 | 北京德邦大为科技股份有限公司 | A kind of hydraulic-driven cereal ceding of Taiwan and its application method |
| CN109515177A (en) * | 2018-11-23 | 2019-03-26 | 烟台杰瑞石油装备技术有限公司 | A kind of hydraulic system of orchard picking equipment |
| CN110663362A (en) * | 2019-11-19 | 2020-01-10 | 山东交通学院 | Excitation type winter jujube harvester |
| CN111357464A (en) * | 2020-02-24 | 2020-07-03 | 山东省农业机械科学研究院 | Green Chinese onion combine harvester hydraulic system and green Chinese onion combine harvester |
| CN111357464B (en) * | 2020-02-24 | 2021-05-25 | 山东省农业机械科学研究院 | Green Chinese onion combine harvester hydraulic system and green Chinese onion combine harvester |
| CN111637105A (en) * | 2020-06-04 | 2020-09-08 | 扬州大学 | Hydraulic control system and control method for ground clearance and wheel track variable walking platform |
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