CN105298959A - Hydraulic drive system for seedling conveying machines for paddy fields - Google Patents
Hydraulic drive system for seedling conveying machines for paddy fields Download PDFInfo
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- CN105298959A CN105298959A CN201510862825.9A CN201510862825A CN105298959A CN 105298959 A CN105298959 A CN 105298959A CN 201510862825 A CN201510862825 A CN 201510862825A CN 105298959 A CN105298959 A CN 105298959A
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Abstract
The invention discloses a hydraulic drive system for seedling conveying machines for paddy fields. The hydraulic drive system comprises an oil tank, a hydraulic pump, a control valve, a hydraulic cylinder and hydraulic motors, wherein the oil tank, the hydraulic pump, the control valve and the hydraulic motors form a hydraulic travel-driving system, and the oil tank, the hydraulic pump, the control valve and the hydraulic cylinder form a hydraulic steering system. The hydraulic steering system is internally provided with a parallel four-link structure composed of a steering tie rod, a steering axle and a pair of steering knuckle arms, and the hydraulic cylinder is connected to one steering knuckle arm. According to the hydraulic drive system, the structure of the seedling conveying machines is simplified, the weight and the size of the hydraulic systems are reduced, and the manufacturing cost is lowered.
Description
Technical field
The present invention relates to a kind of paddy field machine, be specifically related to a kind of paddy field seedling machine hydraulic driving system.
Background technique
In recent years, country improves constantly the attention degree of agricultural, more and more pays close attention to, dropped into a large amount of funds and carried out developing agricultural the development of agricultural, and the development of agricultural be unable to do without farm machinery, so the research and development of this several years farm machinery are more and more faster and use more and more frequent.Use farm machinery not only time saving and energy saving, also improve manufacturing efficiency.Transplanter produces like this, can not only save labour force, rice transplanting efficiency can also be made to increase substantially.
But for paddy planting rich and influential family, plantation paddy field area reaches more than 1000 mu, in annual one to rice transplanting season, always for rice transplanting is employed, manually to choose seedling anxious in peasant household.Because paddy field area is large, the place of some rice transplanting is from rice shoot lay down location away from, and the bad border in paddy field very muddy, workman walks very inconvenient in paddy field, and artificial transport gets up to waste time and energy.Rice transplanting busy, chooses seedling workman for 6 and is all too busy to do it for a transplanter, and often occur the phenomenon of the seedlings such as transplanter.
Agriculturally be badly in need of now having the machinery that can transport rice shoot, replace manually so devise paddy field seedling machine, can as the important tool of grain-production.Seedling transfer machine for paddy field is rational in infrastructure, simple to operate, efficiency is high, maintenance is convenient, travelling speed is fast, is a kind of fortune seedling machine of energy-saving practical.People's labour movement seedling is time-consuming, effort and cost is high, so it is inexorable trend that machine substitutes people's labour movement seedling, and machine cost is low, oil consumption is low, economic and practical, market development prospect is wealthy.
Hydraulic driven utilizes liquid to carry out the kind of drive of transferring energy and control as working medium.Its basic principle utilizes oil hydraulic pump that the mechanical energy of prime mover is converted to the pressure energy of liquid, transferring energy is carried out by the change of fluid pressure energy, through the transmission of various control valve and pipeline, by means of hydraulic actuator (oil hydraulic cylinder or motor), fluid pressure can be converted to mechanical energy, thus drive operation mechanism, realize straight reciprocating motion and rotation motion.Liquid is wherein called working medium, is generally mineral oil, and the transmission component such as band, chain and gear in its effect and mechanical transmission is similar.
Summary of the invention
Goal of the invention: the deficiency existed in order to the technology overcoming existing leveler, the invention provides a kind of paddy field seedling machine hydraulic driving system.
Technological scheme: for solving the problems of the technologies described above, paddy field seedling machine hydraulic driving system of the present invention, comprise fuel tank, oil hydraulic pump, control valve, oil hydraulic cylinder and oil hydraulic motor, wherein fuel tank, oil hydraulic pump, control valve and oil hydraulic motor form walking driving hydraulic system, fuel tank, oil hydraulic pump, control valve and oil hydraulic cylinder form steering hydraulic system, have the parallel―ordinal shift structure be made up of steering tie rod, steering axle and a pair steering knuckle arm in described steering hydraulic system, described oil hydraulic cylinder and a steering knuckle arm are connected.
Particularly, described paddy field seedling facility have two front wheels and two rear wheels, described oil hydraulic motor is and wheel four one to one, is connected with first synchronous valve between two oil hydraulic motors connected with front wheel, is connected with second synchronous valve between two oil hydraulic motors connected with rear wheel.Synchronous valve can the moment of torsion of synchronous two wheels, two-wheeled moment of torsion can be kept on the one hand under steam synchronous, avoid sideslip, even if a wheel sinkage in addition, the oil hydraulic motor of another wheel also can make car load normally roll away from, is applicable to very much the special environment in paddy field.
Particularly, in described walking driving hydraulic system, filter, one-way valve and series flow control valve are also installed.
Particularly, described control valve selects manually operated type three position four-way directional control valve.
Particularly, also relief valve is installed in described walking driving hydraulic system and/or steering hydraulic system
During use; mechanical energy is supplied to oil hydraulic pump by diesel engine; oil hydraulic pump converts the mechanical energy provided by diesel engine to hydraulic energy; filter carries out filtration protection hydraulic system to hydraulic oil and can run well; relief valve carrys out protective system by the pressure limiting system; manually operated type three position four-way directional control valve manually bar control spool thus the rotating forward of hydraulic control motor, reversion, braking and hydraulic cylinder piston rod flexible, thus fluid motor-driven wheel turns and oil hydraulic cylinder control front-wheel deflection controls the walking of paddy field seedling machine and turn to
Walking driving hydraulic system can make paddy field seedling machine advance, retreats and brake, and can reach designed F-Zero.Its driving mode is: Diesel Driven oil hydraulic pump, is converted the sense of rotation of oil hydraulic motor by reversing control valve, drives paddy field seedling wheel by oil hydraulic motor.
Beneficial effect: the walking driving hydraulic system in paddy field seedling machine hydraulic driving system of the present invention and steering hydraulic system design the difference except executive component, and other hydraulic element are identical.So both can be united two into one, form a hydraulic system, simplify the structure of fortune seedling machine, the weight and volume of hydraulic system can be reduced, also reduce manufacture cost.For the running environment that paddy-field-working is special like this, the compactedness of whole system and reliability are particularly important, the present invention is by hydraulic transmission and each wheel independently oil hydraulic motor, eliminate mechanical transmission, even if whole hydraulic system long period of soaking also can normally work in water and silt, hydraulic system can be arranged in can fortune seedling and platform waterline below, for more than waterline reserving more load space or paddy-field-working installation space.
Except technical problem, the technical characteristics forming technological scheme and the advantage brought by the technical characteristics of these technological schemes that the present invention recited above solves, the advantage that the other technologies feature comprised in the other technologies problem that paddy field seedling machine hydraulic driving system of the present invention can solve, technological scheme and these technical characteristicss bring, will be described in more detail by reference to the accompanying drawings.
Accompanying drawing explanation
The schematic diagram of walking driving hydraulic system in Fig. 1 embodiment of the present invention one;
Fig. 2 is the schematic diagram of steering hydraulic system;
Fig. 3 is hydraulic system principle figure;
Fig. 4 is the hydraulic system principle figure of the embodiment of the present invention two;
Fig. 5 is steering box composition;
In figure: fuel tank 1, oil hydraulic pump 2, relief valve 3, manually operated type three position four-way directional control valve 4, first-hand dynamic formula three position four-way directional control valve 4-1, second-hand's dynamic formula three position four-way directional control valve 4-2, synchronous valve 5, oil hydraulic motor 6, oil hydraulic cylinder 7, filter 8, two outlet-rod hydraulic cylinder 9, one-way valve 10, deflecting roller 11, steering axle 12, steering knuckle arm 13, steering tie rod 14, series flow control valve 15.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1
As shown in Figure 1, walking driving hydraulic system comprises fuel tank 1, oil hydraulic pump 2, relief valve 3, manually operated type three position four-way directional control valve 4, synchronous valve 5 and oil hydraulic motor 6.Mechanical energy is supplied to oil hydraulic pump 2 by diesel engine; oil hydraulic pump 2 converts the mechanical energy provided by diesel engine to hydraulic energy; the pressure protective system of system is limited by relief valve 3; manually operated type three position four-way directional control valve 4 manually bar controls spool and carrys out the flow direction of hydraulic control oil thus the rotating forward of hydraulic control motor 6, reversion and braking, thus oil hydraulic motor 6 wheels rotates the walking controlling paddy field seedling machine.Four oil hydraulic motors 6 are used to be because bad border, paddy field is poor here, comparison of resistance is large, larger torque is needed to overcome resistance, four oil hydraulic motors 6 can make full use of mechanical whole energy and carry out increasing traction, improve passing ability, export larger moment of torsion to overcome resistance simultaneously, make paddy field seedling machine more be convenient to walking.Synchronous valve 5 is synchronous for the output of synchronous four wheels, comprises two points of synchronous valve be connected with front-wheel, trailing wheel respectively, and the total synchronous valve be connected with point synchronous valve.
As shown in Figure 2, steering hydraulic system comprises fuel tank 1, oil hydraulic pump 2, relief valve 3, manually operated type three position four-way directional control valve 4 and oil hydraulic cylinder 7.Mechanical energy is supplied to oil hydraulic pump 2 by diesel engine; the mechanical energy that diesel engine provides by oil hydraulic pump 2 converts hydraulic energy to; the pressure protective system of system is limited by relief valve 3; manually operated type three position four-way directional control valve 4 manually bar controls spool and carrys out the flow direction of hydraulic control oil thus the elongation of hydraulic control cylinder 7 piston rod and contraction, thus controls front-wheel deflection direction by oil hydraulic cylinder 7 and control turning to of paddy field seedling machine.
As shown in Figure 3, the hydraulic driving system of the present embodiment is united two into one at walking driving hydraulic system and steering hydraulic system, using same set of fuel tank 1, oil hydraulic pump 2 and relief valve 3, being connected with the oil hydraulic cylinder 7 for turning to and for the synchronous valve 5 of walking and oil hydraulic motor 6 respectively by first-hand dynamic formula three position four-way directional control valve 4-1 and second-hand's dynamic formula three position four-way directional control valve 4-2.
Embodiment 2
The present embodiment is the improvement on embodiment 1 basis, adds filter 8, one-way valve 10 and two series flow control valves 15, as shown in Figure 4 in hydraulic system.Mainly consider when designing hydraulic system principle figure the machinery moved in paddy field, the contaminated affirmative of hydraulic oil is comparatively serious, in order to the transmission ensureing that hydraulic system can be efficient, safe, so with the addition of filter 8 to carry out filtration, purification to hydraulic oil.One-way valve 10 is arranged on delivery side of pump place, mainly damages oil hydraulic pump 2 in order to the unexpected rising of the pressure of anti-locking system, only play a part back.Two outlet-rod hydraulic cylinder 9, mainly in order to ensure left and right turn speed same stable, ensures the stable of paddy field seedling machine.When designing above, I considers and can will turn to walking driving hydraulic system and become a hydraulic system, but because the parameter of oil hydraulic pump 2 is not also determined, so respectively add a series flow control valve 15 in steering hydraulic system He in walking driving hydraulic system, be used for regulating the flow of steering system and walking driving hydraulic system, limit the maximum speed of oil hydraulic motor and control the top speed of two outlet-rod hydraulic cylinder 9 piston rod movement, and can also ensure that the flow of throttling does not change with the change of load, make system keep stablizing fuel feeding.
As shown in Figure 5, steering equipment is primarily of deflecting roller 11, steering axle 12, steering knuckle arm (tie rod arm) 13, steering tie rod 14 with turn to two outlet-rod hydraulic cylinder 9 to form.Promote steering knuckle arm 13 by the piston rod of two outlet-rod hydraulic cylinder 9, by steering tie rod 14, the piston rod ouput force of two outlet-rod hydraulic cylinder 9 is delivered to left steering wheel simultaneously, left and right steering front wheel so just can be made simultaneously to deflect.Steering axle 12 is mainly as supporting and fixing effect.
Working principle:
The element of hydraulic system comprises standard component and professional component.Under the prerequisite meeting system performance requirements, the hydraulic element of existing standard should be selected, unless there are can designed, designed hydraulic element during particular/special requirement as far as possible.Select generally should consider with several aspect during hydraulic element.
(1) application aspect: as the type (as industry equipment, running mechanism etc.) of main frame, the characteristic of prime mover, mounting type, bad border situation (as temperature, humidity, dust etc.), source of goods situation and maintenance requirement etc.
(2) system requirements: the kind, cycle period, impact shock situation etc. of the size of working pressure and flow, maneuvering and control mode, working medium.
(3) economy problems: use amount, cost, source of goods situation and product history, quality and prestige etc.
(4) other: standardization, generalization and the good element of source of goods condition should be adopted as far as possible, and shorten the manufacturing cycle, be conducive to exchange and safeguard.
The paddy field seedling machine designing requirement of the present embodiment is as follows
(1) machine weighs 1 ton, load-carrying 0.5 ton;
(2) steering mode is that front-wheel turns to;
(3) maximum speed is 40km/h;
The establishing method of basic parameter is as follows
The major parameter of hydraulic system comprises pressure, flow and power.Usually, the first working pressure of selecting system, then according to speed (or rotating speed) requirement to executive component, determines its flow.Pressure and flow, once determining, can determine its power, and make the working condition chart of hydraulic system.
(1) certainty annuity working pressure
The working pressure of hydraulic system is determined by equipment, magnitude of load, structural requirement and technical merit, also will consider the restriction of the assembly space of executive component, economic condition and supply situation etc.
In general, for the equipment that fixing dimensional changes is not too limited, pressure can select smaller, and for heave-load devices such as picture running mechanisms, it is higher that pressure will select.System working pressure is high, material saving, and compact structure is lightweight, is the developing direction of hydraulic system, but will note dealing carefully with of the problems such as leakage, Noise measarement and reliability.
Selecting system working pressure is 16Mpa;
(2) continue to use the pawl wheel that transplanter uses, the wheel of selected paddy field seedling machine is pawl wheel.Pawl wheel diameter is 1m, takes turns wide 180mm;
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a paddy field seedling machine hydraulic driving system, comprise fuel tank, oil hydraulic pump, control valve, oil hydraulic cylinder and oil hydraulic motor, it is characterized in that: wherein fuel tank, oil hydraulic pump, control valve and oil hydraulic motor form walking driving hydraulic system, fuel tank, oil hydraulic pump, control valve and oil hydraulic cylinder form steering hydraulic system, also have the parallel―ordinal shift structure be made up of steering tie rod, steering axle and a pair steering knuckle arm in described steering hydraulic system, described oil hydraulic cylinder and a steering knuckle arm are connected.
2. paddy field seedling machine hydraulic driving system according to claim 1, it is characterized in that: described paddy field seedling facility have two front wheels and two rear wheels, described oil hydraulic motor is and wheel four one to one, be connected with the first synchronous valve between two oil hydraulic motors connected with front wheel, between two oil hydraulic motors connected with rear wheel, be connected with the second synchronous valve.
3. paddy field seedling machine hydraulic driving system according to claim 1, is characterized in that: be also provided with filter, one-way valve and series flow control valve in described walking driving hydraulic system and/or steering hydraulic system.
4. paddy field seedling machine hydraulic driving system according to claim 1, is characterized in that: be also provided with relief valve in described walking driving hydraulic system and/or steering hydraulic system.
5. paddy field seedling machine hydraulic driving system according to claim 1, is characterized in that: described control valve selects manually operated type three position four-way directional control valve.
6. paddy field seedling machine hydraulic driving system according to claim 1, is characterized in that: described oil hydraulic cylinder is two outlet-rod hydraulic cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510862825.9A CN105298959A (en) | 2015-12-01 | 2015-12-01 | Hydraulic drive system for seedling conveying machines for paddy fields |
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| CN201510862825.9A CN105298959A (en) | 2015-12-01 | 2015-12-01 | Hydraulic drive system for seedling conveying machines for paddy fields |
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| CN105298959A true CN105298959A (en) | 2016-02-03 |
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| CN201510862825.9A Pending CN105298959A (en) | 2015-12-01 | 2015-12-01 | Hydraulic drive system for seedling conveying machines for paddy fields |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438530A (en) * | 2016-11-07 | 2017-02-22 | 西北农林科技大学 | Orchard straw mulching machine hydraulic system |
| CN108843636A (en) * | 2018-08-23 | 2018-11-20 | 大连理工大学 | A kind of three-phase alternating current hydraulic motor high-precision frequency changing regulating speed control apparatus |
| CN108869459A (en) * | 2018-08-23 | 2018-11-23 | 大连理工大学 | AC hydraulic multi-motor high-precise synchronization control device for pivoting |
| 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 |
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| CN102511231A (en) * | 2011-12-26 | 2012-06-27 | 覃志明 | Hydraulic driving system of full-hydraulic four-wheel-drive rice seedling transplanting machine |
| CN104842785A (en) * | 2013-11-25 | 2015-08-19 | 上海华丰工业控制技术工程有限公司 | Four-wheel drive travelling machine driven by four hydraulic motors |
| CN205154783U (en) * | 2015-12-01 | 2016-04-13 | 淮阴工学院 | Paddy field fortune seedling machine hydraulic drive system |
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Patent Citations (3)
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| CN102511231A (en) * | 2011-12-26 | 2012-06-27 | 覃志明 | Hydraulic driving system of full-hydraulic four-wheel-drive rice seedling transplanting machine |
| CN104842785A (en) * | 2013-11-25 | 2015-08-19 | 上海华丰工业控制技术工程有限公司 | Four-wheel drive travelling machine driven by four hydraulic motors |
| CN205154783U (en) * | 2015-12-01 | 2016-04-13 | 淮阴工学院 | Paddy field fortune seedling machine hydraulic drive system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438530A (en) * | 2016-11-07 | 2017-02-22 | 西北农林科技大学 | Orchard straw mulching machine hydraulic system |
| CN106438530B (en) * | 2016-11-07 | 2018-05-22 | 西北农林科技大学 | A kind of orchard improving straw mulching machine hydraulic system |
| CN108843636A (en) * | 2018-08-23 | 2018-11-20 | 大连理工大学 | A kind of three-phase alternating current hydraulic motor high-precision frequency changing regulating speed control apparatus |
| CN108869459A (en) * | 2018-08-23 | 2018-11-23 | 大连理工大学 | AC hydraulic multi-motor high-precise synchronization control device for pivoting |
| 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 |
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Application publication date: 20160203 |