CN108935395A - Agricultural atomizer - Google Patents

Abstract

A kind of agricultural atomizer (100), including being provided with a pair of supporting members (110) and being suitable for hanging over the braced frame (105) on farm tractor, at least one liquid reserve tank (115) and hydraulic pump (125) are installed in the braced frame, the liquid reserve tank (115) is used to the liquid being pumped into multiple liquid dispensing nozzles from the liquid reserve tank (115) for spraying liquid, the hydraulic pump (125)；The liquid reserve tank (115) is mounted in the first part (130) of the braced frame (105), the hooking device (140) for hooking the farm tractor is provided on the first part (130), the pair of supporting member (110) is mounted on the second part (135) of the braced frame (105) simultaneously, the second part (135) and the first part (130) pass through transition joint (145) hingedly, and the transition joint (145) is adapted to determine that at least one hinge axes (A).

Description

Agricultural atomizer

Technical field

The present invention relates generally to a kind of agricultural atomizer suitable for by tractor-drawn, which is used for work Object sprays treatment liquid, such as herbicide or insecticide.It is more particularly related to a kind of sprayer, which can It is sprayed on crop to be processed while treatment liquid is screened in a manner of fine droplets.

Background technique

It is well known that agricultural towed sprayer generally includes the braced frame shaped like compartment or trailer substantially, the support Frame generally comprises the rudder for being provided with hanging hole and supporting member, which is used to connect the towing hook of tractor, and supporting member can With ground face contact, so as to support the moiety by weight of sprayer and sprayer is enabled to move in the braced frame.

These supporting members are generally made of the wheel that a pair is mounted on single shaft but it is also possible to be other forms, such as A pair of tracks or a pair of of two-wheel.

It is provided with the liquid reserve tank for containing treatment liquid in braced frame, is provided in one or more spray bars multiple Nozzle and hydraulic pump, such as diaphragm pump, the hydraulic pump can connect the power outlet of tractor and by treatment liquid from liquid storage Distribution nozzle is pumped into case.

The shortcomings that these agricultural towed sprayers, is to reach the terminal of a row crop on farm when tractor, and opens When beginning to leave for next row, the wheel of braced frame will walk out the path for having narrow turning radius, therefore, can trample Every back-page crops of row.

In order to overcome this disadvantage, proposes to be arranged on agricultural towed sprayer in the past and be controlled by an electronic control unit Steering wheel method, they manage the steering angle of the wheel of sprayer according to the turning radius being applied on tractor, To make it follow and be maintained on the track of dilatory wheel.

Although this solution is effective, but be considerably complicated and expensive for construction angle.In addition, its The wheel track of agricultural atomizer, i.e. the distance between two wheel shafts cannot be changed according to the line width of crop.

According to the type of crop, every row crop in farmland can actually have different width, such as the cultivated soybean is about For 45cm, cultivated maize is about 75cm, thus the distance between wheel can be adjusted sometimes be for agricultural atomizer it is necessary, It can be made to be advanced without along the arrangement of these crops and trample crop.

In order to enable wheel track to obtain the adjustment of at least one minimum level, steering wheel sprayer provide only by wheel with Corresponding wheel rim is mounted on rotine position or by the inclined selection of wheel rim.

Due to usual wheel rim about the center line of wheel be it is asymmetrical, which can be realized wheel track most The variation of small degree.

In this way, the adjustment between two discrete values can only be provided, cannot continuously and adjustably be changed Track.However, the variation of wheel track has significant impact to steering angle, which is bound to act on atomiser wheel phase For on the steering angle of the steering angle of tractor.Therefore must take into account this influence, to avoid in traveling, in sprayer and Occurs undesirable deviation between tractor.

However, in order to accomplish this point, it is necessary to which, by a series of considerably complicated, slow and non-intuitive operation carries out weight New program and/or reset control unit.

It is that braced frame is divided into two that another kind, which allows agricultural atomizer to follow by the conventional method of tractor turning track, Point, this two parts is hinged according to substantially vertical hinge axes, and wherein first part carries the rudder for being provided with hanging hole, should For hanging hole for connecting tractor, second part carries wheel.

In this way, agricultural atomizer turning can simply by change braced frame first part and second part it Between the angle being mutually inclined realize, such as the hydraulic cylinder that is controlled by an electronic control unit by one or two.

However, the shortcomings that this second scheme is, the liquid reserve tank suitable for storing treatment liquid is mounted on braced frame On second part, that is, this part also with the axis connection of wheel.

This means that liquid reserve tank is (since it is contained when the second part of braced frame is tilted relative to first part Treatment liquid, usually very heavy) apparent lateral displacement can be generated, so that the longitudinal axis of its deviation of gravity center tractor, thus significantly Increase the heeling moment that agricultural atomizer is born, especially on the sloped ground on can be especially unstable.

Summary of the invention

In view of the foregoing, it can overcome the object of the present invention is to provide one kind or at least significant reduce the prior art The agricultural atomizer of disadvantages mentioned above.

Another target of the invention is the above-mentioned target of scheme realization by advantages of simple, and as cost-effective as possible.

These targets realize technical characteristic described in independent claims through the invention.Appurtenance is wanted It asks and describes preferred and/or particularly advantageous aspect of the invention.

Particularly, the embodiment provides a kind of agricultural atomizers, including be provided with a pair of supporting members (such as Wheel, two-wheel, track or other) and be suitable for hanging over braced frame on farm tractor, be equipped in the braced frame to A few liquid reserve tank and hydraulic pump, liquid reserve tank are used to liquid being pumped into multiple liquid from liquid reserve tank for spraying liquid, hydraulic pump Body distributes nozzle；Sprayer is mounted in the first part of braced frame, and it is agricultural dilatory for hooking to be provided in first part The hooking device of machine, while a pair of supporting members being installed on the second part of braced frame, second part and first part are logical It is hinged to cross transition joint, transition joint can determine at least one hinge axes.

With this solution, when farm tractor is turned, the support structure that is only mounted on the second part of braced frame Part changes its direction, and the treatment liquid liquid reserve tank and its center of gravity and tractor that are mounted in the first part of braced frame are basic It is consistent, thus greatly reduces the heeling moment being applied on towed farm machinery, therefore more more stable than the prior art.

According to an aspect of the present invention, agricultural atomizer may include driving device, for driving the of braced frame A part and second part surround the hinge axes limited by transition joint and mutually rotate.

In this way, the gradient of the supporting member of towed sprayer can pass through side corresponding with the steering angle of tractor Formula suitably adjusts, such as is adjusted by electronic control unit.

For example, driving device may include at least one Linear actuator (such as hydraulic jack), opposite end point It is not hinged to first part and the second part of braced frame, for example basis is parallel to the hinge axes limited by transition joint Hinge axes are hinged.

Such driving is actually extremely simple, and the second part of braced frame can be allowed relative to first part Effectively rotation.

In this case, preferably still, driving device includes at least two Linear actuators, they and braced frame Second part it is hinged, such a driver shortening it is corresponding with the elongation of another driver, vice versa.

In this way, can control another when Linear actuator pushes the second part of braced frame to rotate along some direction A Linear actuator pulls the second part along same direction, applies so that the coordinative role of two Linear actuators can increase The whole rotating torque being added on the second part of braced frame, there is no need to powerful drivers easily to make The rotation for obtaining second part is more smooth than the rotation of first part.

According to another aspect of the present invention, each supporting member of sprayer can be connected to support by corresponding semiaxis The second part of frame.

In this way, supporting member is substantially mounted in an independent way on the second part of braced frame, to mention significantly High adjustment possibility.

Particularly, each semiaxis can be telescopic, can preferably be realized by way of telescopic system flexible.

This scalability of semiaxis, so that changing the distance between adjusting supporting member, that is, sprayer wheel track becomes It is very simple, quick and effective.

By telescopic system, wheel track can be adjusted, between minimum value and maximum value continuously substantially so as to be based on Width between the every row of crop and apart from using most suitable mode.

According to another aspect of the present invention, each semiaxis can independently of another semiaxis be cut with scissors according to a hinge axes It is connected to the second part of braced frame, the hinge axes are parallel to the hinge axes determined by another semiaxis, and perpendicular to The hinge axes determined by the transition joint of braced frame.

Such benefit is can to adjust the height and position of each supporting member independently of each other, for example can make him Can better adapt to ground bumps and it is coarse, to improve the stability of sprayer.

For this purpose, further, each semiaxis can be connected with corresponding piston cylinder assembly, opposite the two of the piston cylinder assembly End is hinged with the second part of semiaxis and braced frame respectively, such as according to the hinge axes for the hinge axes for being parallel to semiaxis.

The piston cylinder assembly can be conventional damper, optionally, can be combined with corresponding spring, realize Suspension as supporting member.

However, in other embodiments, piston cylinder assembly is also possible to hydraulic jack, hydraulic jack and suitable Hydraulic-driven circuit is connected, and is able to suppress and the vertical displacement for supporting member of decaying, and/or actively changes the height of supporting member Position is spent, for example changes supporting member to change sprayer relative to a kind of gradient (as Active suspension) on ground Height and position.

According to another aspect of the present invention, the first part of braced frame may include box like structure, in the box like structure Accommodate hydraulic pump.

In this way, hydraulic pump is accommodated and is protected in the box-like part of braced frame, without interfering other atomiser units, Such as treatment liquid liquid reserve tank.

Another aspect of the present invention, further, for hook the hooking device of farm tractor pass through it is detachable and can The attachment device of reorientation is connected with box-like structure, it can two or more positions fixed to the box-like structure, it is excellent Selection of land is position corresponding with the different height relative to ground.

The benefit of the program is that the first part of braced frame can be fixed on to the traction with ground different height On the tractor of hook, while hydraulic pump being maintained to the optimum height connecting with power outlet.

According to another aspect of the present invention, the distance between the hinge axes limited by transition joint and supporting member can be with The distance between hooking device less than the hinge axes and for hooking farm tractor.

In this way, the lateral displacement of supporting member is actually fairly small, is applied to spray to further reduce when turning to Heeling moment on day with fog.

Another aspect of the present invention, hydraulic pump can be carried by supporting element, which can be fixed on along substantially It is parallel on the different positions on the direction of the hinge axes of transition joint.

Such benefit is, thus it is possible to vary height of the hydraulic pump apart from ground, so as to be located by universal shaft In most suitable position, to be connected with the power outlet of tractor.

Detailed description of the invention

It is described by example unrestricted in attached drawing, can be illustrated more clearly that other features and advantages of the present invention.

Fig. 1 is the structure chart of towed sprayer according to an embodiment of the invention.

Fig. 2 is the side view of sprayer shown in Fig. 1.

Fig. 3 is the amplification assumption diagram of sprayer shown in Fig. 1, spray bars, wheel and some housings is not shown, to show Show various details of the invention.

Fig. 4 is the side view of component shown in Fig. 3.

Fig. 5 is the bottom view of component shown in Fig. 3.

Fig. 6 is the rearview of component shown in Fig. 3.

Fig. 7 is the front view of component shown in Fig. 3.

Fig. 8 is the enlarged schematic partial view shown in fig. 6 along the position VIII-VIII.

Fig. 9 is the rearview of component shown in Fig. 6, wherein liquid reserve tank is concealed, so that semiaxis misalignment is better shown Situation.

Figure 10 is the rearview of component shown in Fig. 9, and wherein semiaxis is minimum extended, and is aligned with midline position.

Figure 11 is the rearview of component shown in Figure 10, and wherein semiaxis is in maximum extension setting.

Specific embodiment

In above-mentioned attached drawing, appended drawing reference 100 indicates towed agricultural atomizer as a whole, i.e., agricultural for hanging over It is drawn on tractor (not shown) and is advanced on field, to spray treatment liquid to crop, such as herbicide or insecticide.

Sprayer 100 as shown in the figure includes braced frame 105, and shape is substantially similar to compartment or trailer, and fits In the rear portion for hanging over farm tractor, including a pair of of ground supports wheel 110, which is arranged so as to be opposite each other uniaxial to determine.

On bracket 150, the liquid reserve tank 115 for being suitable for storing treatment liquid is installed.One or more spray bars 120, it is excellent Foldable type spray bars are selected as, have multiple distribution nozzle (not shown) and hydraulic pump 125(referring to Fig. 3 in the spray bars), example Such as diaphragm pump, which may be coupled to the power outlet of farm tractor, and can be by treatment liquid from liquid reserve tank 115 It is pumped into distribution nozzle, treatment liquid is enabled to be injected into tiny drop and is injected directly on crop to be processed.

In some embodiments, sprayer 100 can also include ventilation unit, such as fan, the ventilation unit are also installed In braced frame 105, and high-speed flow can be generated, which sprays treatment liquid drop by cross-ventilation On crop.

As shown in figure 4, the braced frame 105 of sprayer 100 includes two sseparated parts, respectively front 130 is with after Portion 135 has been rigidly mounted liquid reserve tank 115 on middle front part 130, the wheel hub 205 of wheel 110 is equipped on rear portion 135.

The front 130 of braced frame 105 includes hook 140, can be directly hooked into it by the hooking device 140 On farm tractor.

In an illustrated embodiment, hooking device 140 is a hanging hole, which is suitable for being linked into and lockking farm tractor The towing hook at the back side.

The rear portion 135 of braced frame 105 is connected by transition joint 145, such as knuckle joint and front 130.Among this Connector can determine preset hinge axes A.

In this way, the rear portion 135 of braced frame 105 and pair of wheels 110 can be relative to front 130 and 115 turns of liquid reserve tank It moves and changes gradient.

The front 130 and rear portion 135 of braced frame 105 are substantially all and are rigid mechanical structure, can not have substantially There is shifting ground to relatively rotate around hinge axes A.

Particularly, front 130 further includes box like structure 150, such as the box like structure made of bending welding thin plate, limit Inner space is determined and has extended mainly along the longitudinal axis B orthogonal with hinge axes A.

Along longitudinal axis B, box like structure 150 has rear end and front end, transition joint 145 is provided on the rear end, Hooking device 140 is fixed on the front end.

Particularly, hooking device 140 is fixed on the front end of box like structure 150, rigid connection by conducting wire rigid-connecting device 155 Device 155 can be connected in multiple and different positions and box like structure 150, to allow the position of hook 140 can be along It is arranged essentially parallel to the direction change of hinge axes A.

In an illustrated embodiment, attachment device 155 include two support arms 160, they be orthogonal to hinge axes A Plane it is substantially coplanar, and from the front end of box like structure 150 stretch out cantilever.They gather mutually in opposite directions, thus they from It is close to each other by holding.

Hooking device 140 is arranged on these free ends of support arm 160, these hooking devices can pass through connector 165 It is connected on support arm 160, connector 165 at least allows it to generate small swing around hinge axes C, hinge axes C and vertical It is orthogonal to axis B and hinge axes A.

The opposite end of support arm 160 is removably secured on two corresponding connecting plates 170, and connecting plate 170 limits The front end of box-like structure 150 and being located at is arranged essentially parallel in the plane of hinge axes A.

In this way, support arm 160 and hooking device 140 can freely remove and along hinge axes A from connecting plate 170 Direction different positions on re-assembly.

In an illustrated embodiment, be between support arm 160 and connecting plate 170 be fastenedly connected by bolt, but It is that in other embodiments, bolt can be substituted by other clamp devices, as long as they are detachable and repositionable ?.

As shown in figure 3, two connecting plates 170 are spaced from each other, and it is limited at the front end of box like structure 150, it can Pass through the inner space of 175 connection box like structure 150 of open front.

In the inner space of box like structure 150, hydraulic pump 125 is accommodated, which can pass through universal shaft 175 connect with the power outlet of hydraulic tractor, and the universal shaft 178 is by open front 175 to outside box like structure 150 It is prominent.

Particularly, hydraulic pump 125 is carried by moveable supporting element, which can be fixed on box-like knot On multiple and different positions of structure, so as to change the position of hydraulic pump 125 on the direction with hinge axes A general parallel orientation It sets.

The benefit of the program is, in any mutual assembly, can optimize the universal shaft 178 of hydraulic pump 125 and hang Relative position between hook device 140.

In order to drive front 130 and the rear portion 135 of braced frame 105 to surround hinge axes A and mutually rotate, sprayer 100 It is provided with dedicated driving device.

In an illustrated embodiment, driving device includes a pair of of hydraulic jack 180, and preferably double acting hydraulic is very heavy Top, they can the coplanar placement in the plane orthogonal with hinge axes A.

According to the articulated shaft for being parallel to hinge axes A, the opposite end of each hydraulic jack 180 is respectively and braced frame 105 front 130 and rear portion 135 are hinged, so that the variation of 180 length of hydraulic jack is always corresponding to braced frame 105 The mutual rotation of two parts.

Particularly, the both sides opposite in mid-plane can be set in two hydraulic jacks 180, which includes hinge The longitudinal axis B of the front 130 of spindle line A and braced frame.In this way, the shortening of a jack 180 correspond to always another thousand The elongation on jin top 180, vice versa.

In this way, hydraulic jack 180 can be connected with fluid pressure supply system (not shown), fluid pressure supply system It is arranged to, by the resultant couple for doubling to be applied between the front 130 of braced frame 105 and rear portion 135, so that when one thousand When jin top 180 generates tractive force (i.e. on shortening direction), another jack 180 generates thrust (i.e. on prolonging direction), Vice versa.

It is different from front 130, the rear portion 135 of braced frame 105 set up with emphasis on the side for being parallel to hinge axes A and Implement, such as the base construction 185 by carrying transition joint 145 is arranged, the base construction 185 can and hydraulic jack Top 180 is hinged, and is realized by bolt 190 that a pair is stretched out on the base construction 185.

As shown in figure 8, each wheel hub 205 is carried by corresponding semiaxis 195A and 195B, corresponding semiaxis 195A and 195B The rear portion 135 of braced frame 105, such as hinged, knuckle joint energy by knuckle joint are hinged to by corresponding connector 200 Enough it is determined perpendicular to the hinge axes D of the hinge axes A of braced frame 105.

Preferably, hinge axes E and the co-planar for being orthogonal to hinge axes A (referring to Fig. 8).

Two semiaxis 195A and 195B are two separate and distinct entities under any circumstance, in some embodiments In, they may not be full symmetric as shown in the figure.

Two semiaxis 195A and 195B substantially originate in respective connector 200, outstanding from the rear portion of braced frame 105 135 Arm is prominent, i.e., from relative to including hinge axes A and be parallel to the opposite side of mid-plane of hinge axes D and stretch out.

The free end of each semiaxis 195A and 195B carries corresponding wheel hub 205, and the wheel rim of corresponding wheel hub 110 is fixed on the wheel On hub 205, such as it is bolted.

Particularly, each wheel hub 205 is rotationally connected with corresponding semiaxis 195A with 195B, so as to around predetermined Rotary shaft E be freely rotated, this also determines the rotation axis of corresponding wheel 110 certainly.

The pivot center E of each wheel hub 205 perpendicular to corresponding semiaxis 195A and 195B hinge axes D, and preferably It is coplanar with the pivot center E of another wheel hub 205 in the plane orthogonal with hinge axes F.

In this way, two semiaxis 195A and 195B can take up midline position (as shown in FIG. 10 and 11), wherein wheel hub 205 The pivot center E of pivot center E and wheel 110 substantially coincides with one another, and just with the hinge axes A of braced frame 105 It hands over, or is at most slightly slanted 6 degree or 12 degree.

As shown in figure 9, each semiaxis 195A and 195B can also surround corresponding hinge axes since the midline position D rotation, and swung independently of another semiaxis 195A and 195B.

Particularly, each semiaxis 195A and 195B can be swung between -10 ° and+5 ° relative to midline position.

From the viewpoint of construction, each semiaxis 195A and 195B is designed to the pivot center E in corresponding wheel hub 205 Direction on it is scalable, to change the distance between wheel 110, the i.e. wheel track of sprayer 100.

In order to allow this adjusting, each semiaxis 195A and 195B is rotation axis E's in embodiment shown in the present invention It is scalable on direction.It and further include the first arm 210 and the second arm 215 in the implementation, which is tubulose, and passes through connector 200 and braced frame 105 rear portion it is hinged.Second arm 215 is slideably taken in into the first arm 210, and in its free end Place carrying wheel hub 205(is referring to Fig. 8).

Preferably, the first arm 210 and the second arm 215 have prismatic sections, thus realize prism-coupled, the prism-coupled It can be realized and lock first arm 210 and the second arm 215 by mutually rotating.

In this way, the length of each semiaxis 195A and 195B can substantially continuously adjust between minimum value and maximum value, For example, minimum value, which corresponds to the second arm 215 maximum inserted value (referring to Figure 10), maximum value in the first arm 210, corresponds to second Maximum elongation value of the arm 215 relative to the first arm 210 (referring to Figure 11).

Particularly, the stroke between minimum length setting is arranged substantially in maximum length in each semiaxis 195A and 195B 18cm, namely allow the wheel track of sprayer 100 that can change to 186 centimetres of maximum value from 150 centimetres of minimum value.

After each adjustment of wheel track, the length of each semiaxis 195A and 195B can be filled eventually by special locking It sets (not shown) to fix, such as allows the second arm 215 relative to 210 axial lock of the first arm.

Further, each semiaxis 195A and 195B is connected with corresponding piston cylinder assembly 220, the piston cylinder assembly 200 opposite end is respectively according to the hinge axes and semiaxis 195A, 195B and support frame for being parallel to respective hinge axes D The rear portion 135 of frame 105 is hinged, and it is hinged to neutralize semiaxis 195A and 195B, such as can be with the first arm 210 hingedly, and support The rear portion 135 of frame 105 is hinged, e.g. hinged with the stud 190 near it.

In this case, semiaxis 195A and 195B always corresponds to piston-cylinder group around the swing of respective hinge axes D The variation of the length of part 220.

In some embodiments, piston cylinder assembly 220 can be conventional damper, optionally, can with it is respective Corresponding spring is connected, to substantially carry out the independent suspension of two wheels 110 of sprayer 100.

However, in other embodiments, each piston cylinder assembly 220 can be hydraulic jack, it is suitable to be connected to Hydraulic-driven circuit can initiatively change the height and position of corresponding wheel 110, such as opposite in order to change sprayer 100 In ground gradient and change the height and position of wheel 110.

In embodiment below, or above-mentioned fluid power system provides other suitable systems, such as hydraulic Accumulator allows piston cylinder assembly 220 to absorb and inhibit the vertical displacement of corresponding wheel 110, it is also possible to make suspension.

In use, sprayer 100 is hung on tractor by hooking device 140, is incorporated in especially by by hanging hole In the draw hook of tractor, wheel 110 is enabled to keep on the ground in this way, and support at least part of sprayer 100 Total weight, the sprayer 100 include braced frame 105, liquid reserve tank 115, hydraulic pump 125 and spray bars 120.

In the position, the hinge axes A limited by transition joint 145 be substantially it is vertical, i.e., substantially with ground level just It hands over；And the rotation axis E(of wheel 110 is at least when semiaxis 195A and 195B are in midline position) substantially horizontal, i.e. base Ground level is parallel on this.

Meanwhile hydraulic pump 125 is connected with the power outlet of farm tractor, for example is connected by universal shaft 178, to incite somebody to action Treatment liquid is pumped into the distribution nozzle being mounted in spray bars 120 from liquid reserve tank 115.

Thus, it should be noted that different due to that can be mounted on hooking device 140 along the direction of hinge axes Position, so such benefit is sprayer 100 can be fixed on the tractor with different height draw hook, simultaneously Ensure that hydraulic pump 125 is maintained at the optimum height that connection is inserted with power supply.

A possibility that by changing height of the hydraulic pump 125 apart from ground, and changing the installation site of hydraulic pump 125, Further improve this degree of freedom in location.

When hydraulic pump 125 is run, sprayer 100 can be drawn by farm tractor, be moved on the ground, and by treatment fluid Body is sprinkled upon on crop to be processed, for example these crops can be arranged in parallel.

It, can be according to the width between crop and apart from suitably change in advance in order to not tread on crop during advance The length of semiaxis 195A and 195B come the wheel track of adjustable spraying device 100, i.e. the distance between wheel 110.

Certainly, during advance, semiaxis 195A and 195B can be swung independently of one another, so as to allow two wheels 110 height and position variation, so as to adapt to the coarse of ground.

These swings, if being realized in the form of hydraulic jack, wheel are inhibited by piston cylinder assembly 220 110 height and position also can initiatively change, for example, if if sprayer 100 above advances on the sloped ground.

When farm tractor turns to, such as the row that shrinks back, the rear portion 135 of the braced frame 105 of sprayer 100 can be with It is rotated around hinge axes, to change the direction of the wheel 110 on ground, generates a steering angle.

The rotation at the rear portion 135 of braced frame 105 can be by 180 active drive of hydraulic jack, and operating can be by electricity Sub-control unit control, electronic control unit can establish the vehicle of sprayer 100 based on the steering angle of farm tractor steering wheel The steering angle of wheel, such as in this case, the wheel 110 of sprayer 100 will be always in the tracks of tractor wheels.

Rigidity rotation due to steering angle by two wheels 110 around rotation axis A determines, so its angle value is independently of two The distance between wheel 110, i.e., from the wheel trajectories of sprayer, therefore electronic control unit can effectively pass through a kind of mould Formula programs and adapts to all possible configuration.

It should be noted that when the rear portion of braced frame 105 135 rotates the steering angle to assign wheel 110, integrally It is mounted on the liquid reserve tank 115 and hydraulic pump 125 of the treatment liquid on the front 130 of braced frame 105, basic and tractor is kept Alignment, to considerably reduce the heeling moment for being applied to sprayer 100, therefore keeps its highly stable.

The spray bars 120 being mounted on the rear portion 135 of braced frame 105 are integrally moved with wheel 110, so as to excellent Change sprinkling work, especially in the region of the every row end of crop.

Above-mentioned steering system allows more permanent parallel of wheel 110 and the holding of every row crop, and can allow spray bars 120 It is maintained at correct operating position, until the end in farmland, thus substantially can be to work in the whole length of every row crop Object realizes uniform treatment.

In order to further decrease heeling moment, reduce the hinge axes A of braced frame 105 and the rotation axis E of wheel 110 The distance between it is also critically important, the distance between rotation axis E of hinge axes A of braced frame 105 and wheel 110 needs more It is small, much smaller than the distance between hinge axes A in the present embodiment and the hooking device 140 for tangling tractor (for example, being less than 1/10th), because of this, the lateral displacement of wheel 110 will be very small when turning to.

In conclusion it is emphasized that although above description always indicates pair of wheels 110, in other embodiments In, this is substitutable for a pair of tracks to wheel 110, and a pair of of two-wheel or other a pair of any supporting members, the supporting member are suitable for It shelves on the ground at least part weight to support agricultural atomizer 100 and allows its movement.

If using track or similar Slidable support component, the rotation axis of track will be with track or quite It is vertical in the plane that the supporting member of track is slided.

Opposite rotation although shall also be noted that in the foregoing description, between the front 130 and rear portion 135 of braced frame 105 Turn to be to obtain by hydraulic jack 180, but in other embodiments, these hydraulic jacks can be replaced by other linear Driver, such as pneumatically or electrically driver.

Certainly, under the range for not departing from the claims in the present invention, those skilled in the art can be to above-mentioned sprayer 100 Carry out several technology deformations.

Claims (12)

1. a kind of agricultural atomizer (100), including be provided with a pair of supporting members (110) and be suitable for hanging on farm tractor Braced frame (105), at least one liquid reserve tank (115) and hydraulic pump (125), the liquid storage are installed in the braced frame Case (115) is used to for the liquid being pumped into from the liquid reserve tank (115) multiple for spraying liquid, the hydraulic pump (125) Liquid dispensing nozzle；It is characterized in that, the liquid reserve tank (115) is mounted on the first part (130) of the braced frame (105) On, the hooking device (140) for hooking the farm tractor, while described one are provided on the first part (130) Supporting member (110) is mounted on the second part (135) of the braced frame (105), the second part (135) and institute It states first part (130) and passes through intermediate connector (145) hingedly, the transition joint (145) is adapted to determine that at least one is hinged Axis (A).

2. agricultural atomizer (100) according to claim 1, which is characterized in that it further include driving device (180), it is described Driving device (180) is used to drive the first part (130) and the second part (135) of the braced frame (105) It is mutually rotated around the hinge axes (A) determined by the transition joint (145).

3. agricultural atomizer (100) according to claim 2, which is characterized in that the driving device includes at least one Two opposite ends of Linear actuator (180), the Linear actuator (180) are described with the braced frame (105) respectively First part (130) and second part (135) are hinged.

4. agricultural atomizer (100) according to claim 3, which is characterized in that the driving device includes at least two The second part (135) of the Linear actuator (180), the Linear actuator and the braced frame (105) hingedly, So that the shortening of a Linear actuator corresponds to the elongation of another Linear actuator, vice versa.

5. agricultural atomizer (100) according to any one of claims 1 to 4, which is characterized in that each support structure Part (110) passes through semiaxis (195A, 195B) and the connection of the second part (135) of the braced frame (105) respectively.

6. agricultural atomizer (100) according to claim 5, which is characterized in that each semiaxis (195A, 195B) is It is telescopic.

7. agricultural atomizer (100) according to claim 5 or 6, which is characterized in that each semiaxis (195A, 195B) braced frame (105) are hinged to independently of another semiaxis (195A, 195B) according to a hinge axes (D) Second part (135), the hinge axes (D) are parallel to the hinge axes determined by another semiaxis (195A, 195B) (D), and perpendicular to the hinge axes (A) determined by the transition joint (145) of the braced frame (105).

8. agricultural atomizer (100) according to claim 7, which is characterized in that each semiaxis (195A, 195B) point Be not connected with its respective piston cylinder assembly (220), two opposite ends of the piston cylinder assembly (220) respectively with it is described Semiaxis (195A, 195B) and the second part of the braced frame (105) are hinged.

9. according to claim 1 to agricultural atomizer described in 8 any one (100), which is characterized in that the braced frame (105) first part (130) includes box like structure (150), and box like structure (150) inner containment has the hydraulic pump (125).

10. agricultural atomizer (100) according to claim 9, which is characterized in that for hooking the farm tractor The hooking device (140) passes through detachable and relocatable attachment device (155) and the box like structure (150) connection.

11. according to claim 1 to agricultural atomizer described in 10 any one (100), which is characterized in that by described indirectly The distance between the determining hinge axes (A) of head (145) and the supporting member (110) are less than the hinge axes (A) With the distance between the hooking device (140) for hooking the farm tractor.

12. according to claim 1 to agricultural atomizer described in 11 any one (100), which is characterized in that the hydraulic pump (125) it is carried by supporting element, the support member can be along the hinge axes for being arranged essentially parallel to the transition joint (145) (A) direction is fixed on different positions.