JPH0513569U - Self-propelled sprayer - Google Patents

Abstract

(57) [Summary] [Purpose] In order to attach the spray to the object to be sprayed such as the leaves of trees, instead of shaking the object to be sprayed with the air from the blower, the nozzle 22 is used. Rock it,
In the self-propelled spraying vehicle 10 in which the spray angle of the spray from the nozzle 22 is variously changed, a plurality of nozzles 22 distributed in a wide range in the circumferential direction of the spray discharge part 20 are used as a common front-back swing electric cylinder 36 and a common one. The electric cylinder 46 for swinging in the circumferential direction swings to simplify the structure. [Structure] A plurality of nozzles 22 are arranged in the circumferential direction of the spray discharge part 20, and an outer arc part 90 of the nozzle support frame 40 is arranged.
Attached to. The nozzle support frame 40 is rotatably supported around the vertical pin 34 and the front-rear direction pin 42, and is accompanied by periodic expansion and contraction movements of the front-back swing electric cylinder 36 and the circumferential swing electric cylinder 46. , Swing the mounting side of the nozzle 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a self-propelled spray vehicle used for spraying chemicals in a field, and more particularly to a self-propelled spray vehicle that can omit a blower.

[0002]

[Prior Art]

 In the speed sprayer that sprays chemicals in the field, the air from the blower is used to convey the spray from the nozzle, and at the same time, the leaves of the tree to be sprayed are shaken so that the chemicals adhere to the leaves as a whole. The blower is indispensable. The blower consumes a large amount of energy for operation and also serves as a noise source, and it is preferable if it can be omitted.

On the other hand, in Japanese Utility Model Publication No. 43-5576, the swing arm is attached to the nozzle at the upper end thereof, is coupled to the crank at the lower end, and the crank is rotated to perform the chemical spraying operation. , Variously changing the orientation of the nozzle. In this spraying device, it is possible to attach the drug to the leaves as a whole by changing the spraying angle of the drug in various ways without shaking the leaves of the tree by the wind from the blower.

[0004]

[Problems to be solved by the device]

 In the spraying device of Japanese Utility Model Publication No. 43-5576, it is possible to swing one nozzle or a plurality of nozzles within a narrow angular range in the circumferential direction all at once, but a large number of nozzles arranged over a wide angular range. It is difficult to move the nozzle with a common drive. Further, in this spraying device, the spraying angle of the spray cannot be changed by rotating the nozzle while maintaining the inclination angle of the center line of the nozzle with respect to a predetermined straight line, and the change of the spraying angle is small.

An object of the invention of claim 1 is to spray a spray on an object to be sprayed while omitting a blower, and to dispose a plurality of sprays arranged over a relatively wide angular range in the circumferential direction. An object of the present invention is to provide a self-propelled spreading vehicle in which the nozzles can be simultaneously swung by a common front-back drive device and a common circumferential drive device to simplify the structure. An object of the invention of claim 2 is to provide a self-propelled spreader vehicle in which the rotating motions of a plurality of nozzles can be achieved by a common rotary drive device so that the spray angles can be further varied. Is.

[0006]

[Means for Solving the Problems]

 The invention will be described using the reference numerals of the drawings corresponding to the embodiments. The self-propelled spraying vehicle (10) which is the premise of claim 1 is provided with a spray discharge part (20) opening toward the surroundings. The self-propelled spreading vehicle (10) according to claim 1 has the following components (a) to (d). (A) A nozzle disposed in the spray discharger (20) and swingably supported by the vehicle body (24) in the circumferential direction of the spray discharger (20) and in the front-back direction of the self-propelled spraying vehicle (10). Support frame (40) (b) A plurality of nozzles (22) arranged in the circumferential direction of the spray discharge part (20) and attached to the nozzle support frame (40) (c) Nozzle support frame (40) during spraying work The front-rear drive unit (36) that oscillates the nozzles in the front-back direction of the sprayer (10) (d) During the spraying operation, the nozzle support frame (40) is swayed in the circumferential direction of the spray discharge unit (20). Peripheral Drive (46)

In the self-propelled spraying vehicle (10) of claim 2, the shaft portion (78) of each nozzle (22) is supported by the nozzle support frame (40) through the universal bearing (80), and the spraying work is performed. A rotating means (58) is provided for each nozzle (22) to rotate the base end of the shaft (78) while keeping the axis of the shaft (78) tilted with respect to the center line of the free bearing (80). Has been. The rotating means (58) receives rotational power from the common rotary drive device (50) via the endless member (56).

[0008]

According to the first aspect of the present invention, during the spraying operation, the nozzle support frame (40) is moved by the front-rear driving device (36) and the circumferential driving device (46) in the front-rear direction of the self-propelled spreading vehicle (10) and The fog discharge part (20) is swung in the circumferential direction. As a result, the plurality of nozzles (22) mounted on the common nozzle support frame (40) move together with the nozzle support frame (40), and the front-back direction of the self-propelled spreading vehicle (10). And swings in the circumferential direction of the spray discharge part (20). As a result, the spraying direction of the spray from the nozzle (22) also swings in the front-back direction of the self-propelled spraying vehicle (10) and the circumferential direction of the spray discharge part (20), and the sprayed target sprays the spray at various angles. Is sprayed from.

According to the second aspect of the present invention, the rotating means (58) receives the rotational power from the common rotary drive device (50) through the endless member (56), and the shaft portion of each nozzle (22). Rotate the base end of (78). As a result, the nozzle (22) rotates while the axis of the shaft portion (78) maintains the inclination with respect to the center line of the universal bearing (80), so that each nozzle (22) does not rotate. , The spraying angle of the spray on the object to be sprayed changes.

[0010]

【Example】

 The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 8 is a schematic side view of the self-propelled spreading vehicle 10. The self-propelled spraying vehicle 10 can be self-propelled by front, rear, left and right tires 12, has a driver's seat 14, a chemical tank 16, an engine section 18 and a spray discharge section 20 in order from the front to the rear, and has a normal speed sprayer. The blower installed in is omitted. The spray discharger 20 is open not only at the rear but also on the left and right sides and at the top, and the plurality of nozzles 22 are directed radially outward so that the spray discharger 20 is arranged in the circumferential direction. It is arranged in the spray discharge unit 20.

1 and 2 are detailed views of a left half portion and a right half portion of the spray discharge unit 20. The spray discharge part 20 has a structure that is substantially symmetrical to the left and right, and a vehicle body or a pair of main frames 24 as a vehicle body extend parallel to the front-rear direction. The cradle 26 extends in the left-right direction and is connected to the main frame 24 at both ends.

FIG. 3 is a view showing the lower part of the spray discharge part 20 from the side of the self-propelled spraying vehicle 10, and FIG. 4 is a view taken in the direction of arrow V 4 of FIG. The left and right beams 28 are fixed to the upper surface of the pedestal 26, respectively, at the rear end portion and the front end portion. The two pillars 30 extend in the vertical direction, and the bracket 32 is fixed to the lower ends thereof. The bracket 32 is connected to the front and rear ends of the left and right beams 28 via a vertical pin 34, and is rotatable about the axis of the pin 34. The forward-backward swinging electric cylinder 36 has a projecting rod 38, is arranged in a horizontal plane, and is rotatably coupled to the ends of the beams 28 on the receiving table 26 side and the bracket 32. The bracket 32 swings around the pin 34 as the amount of protrusion of the rod 38 in the front-rear swing electric cylinder 36 increases or decreases. The pair of limit switches 39 are fixed to the beam 28 on the left side, come into contact with both ends of the bracket 32 as the bracket 32 swings, and are turned on and off. That is, as the protruding amount of the rod 38 increases, the left and right brackets 32 swing in one direction, and the left bracket 32 comes into contact with one of the limit switches 39. The amount of protrusion of the rod 38 of the left and right electric cylinders 36 for swinging forward and backward is switched from increasing to decreasing, then the left and right brackets 32 swing in the other direction, and the left side bracket 32 hits the other limit switch 39. Upon contact, a control unit (not shown) switches the protrusion amount of the rod 38 of the left and right electric cylinders 36 for rocking back and forth from decrease to increase. Thus, the post 30 continues its oscillating motion about the pin 34.

1 and 2, the fan-shaped left and right nozzle support frames 40 are arranged symmetrically with respect to the left-right center line of the spray discharge part 20, and around the pin 42 in the front-rear direction at the apex part 44. It is rotatably connected to the upper end of each column 30. The plurality of nozzles 22 are attached to the nozzle support frame 40 in an array at appropriate intervals in the circumferential direction of the spray discharge unit 20. It should be noted that the nozzles 22 may be closely spaced in a range obliquely upward from the center of the spray discharge unit 20 (a range of an angle of about 45 ° downward from the pin 42 with respect to the vertical line). The electric cylinder 46 for swinging in the circumferential direction has a projecting rod 48, is arranged in the vertical plane, and is rotatably connected to the apex 44 and the lower end of the column 30 at the upper and lower ends. The support frame 40 for each nozzle swings around the pin 42 in the circumferential direction of the spray discharge portion 20 due to an increase or decrease in the amount of protrusion of the rod 48 in the electric cylinder 46 for swinging in the circumferential direction. The electric motor 50 is fixed to the lower radial portion of the support frame 40 for each nozzle, and has a drive sprocket 52 attached thereto. The driven sprocket 54 is provided corresponding to each nozzle 22, and the chain 56 is commonly mounted on one driving sprocket 52 and a plurality of driven sprockets 54, and the rotational power of the driving sprocket 52 is driven by each driven sprocket 52. Transmission to sprocket 54.

FIG. 5 is a detailed view of the nozzle 22 and its rotating means 58. In the rotating means 58, the rotating shaft 60 is integrally and rotationally coupled to the driven sprocket 54, and the ball bearing 64 is fitted in the bearing case 62 to rotatably support the rotating shaft 60 on the bearing case 62. .. The oil seal 66 is fitted into the bearing case 62 outside the ball bearing 64, and prevents the lubricant of the ball bearing 64 from leaking from the bearing case 62. The bearing case 62 is fixed to the inner arc portion 68 (FIGS. 1 and 2) of the nozzle support frame 40. The head 70 is fixed to the tip of the rotating shaft 60, and the arm 72 is fixed to the tip of the head 70 at the base end and projects in a direction perpendicular to the axis of the rotating shaft 60. The stay 74 is rotatably connected to the tip end of the arm 72 via a ball joint 76 on the base end side, and is fixed to the base end of the pipe portion 78 of the nozzle 22 on the tip end side. The center of the ball joint 76 is located at a distance L from the center line of the rotating shaft 60. The universal bearing 80 is mounted on the tip of the nozzle 22.

FIG. 6 is a vertical cross-sectional view of the universal bearing 80, and FIG. 7 is a diagram of the universal bearing 80 viewed from the tip side of the nozzle 22. The pair of hemispheres 82 are fitted into the pipe portion 78 from both sides on the inner peripheral side, and the cases 84 and 86 are fitted on the outer peripheral side. The two bolts 88 are inserted into the case 84 and then screwed into the case 86 to tighten the cases 84 and 86 to each other, whereby the pair of hemispheres 82 is appropriately pressed radially inward, and Part 78 is attached. The pair of hemispheres 82 rotate integrally with the pipe portion 78 and relatively rotate on the outer peripheral surface side with respect to the inner peripheral surfaces of the cases 84 and 86.

Returning to FIG. 6, the cases 84 and 86 of the universal bearing 80 are arranged so that the axis of the pipe portion 78 of the nozzle 22 is inclined by θ ° with respect to the center line of the universal bearing 80. It is fixed to the outer arcuate portion 90 of the 40 (Fig. 1). With the rotation of the driven sprocket 54, the rotating means 58 rotates, and the center of the ball joint 76 rotates on an arc of radius L 1 from the center line of the rotating shaft 60. Since the base end side of the pipe portion 78 is rotated by the stay 74, the nozzle 22 rotates while the axis of the pipe portion 78 maintains the inclination of θ ° with respect to the center line of the universal bearing 80.

The operation of the embodiment will be described. During the spraying work, the limit switch 39 and the like cause the forward / backward swing electric cylinder 36 and the circumferential swing electric cylinder 46 to expand and contract at a predetermined cycle. As a result, the column 30 rotates around the vertical pin 34 in accordance with the expansion and contraction movement of the front-back swing electric cylinder 36, and the nozzle support frame 40 rotates integrally with the column 30 to allow the pin 34 to rotate. Rotating around, the nozzle 22 swings in the front-back direction of the self-propelled spreading vehicle 10. Further, the nozzle support frame 40 rotates around the pin 42 in the front-rear direction as the electric cylinder 46 for swinging in the circumferential direction expands and contracts, and the nozzle 22 swings in the circumferential direction of the spray discharger 20. As a result, the spraying direction of the spray from the nozzle 22 also swings in the front-back direction of the self-propelled spraying vehicle 10 and the circumferential direction of the spray discharge part 20, and the sprayed object such as a tree leaf sprays the spray at various angles. Is sprayed from.

On the other hand, the rotational power of the electric motor 50 attached to each nozzle support frame 40 is transmitted to each driven sprocket 54 via the drive sprocket 52 and the chain 56, and each rotating means 58 is connected to the stay 74. The base end of the pipe part 78 of the nozzle 22 is rotated via the. As a result, the nozzles 22 rotate while the axis of the pipe portion 78 holds the inclination of θ ° with respect to the center line of the universal bearing 80, so that each nozzle 22 makes a neck-moving motion and the spray target The spray angle of the spray on the object changes.

[0019]

[Effect of the device]

 According to the invention of claim 1, a plurality of nozzles are mounted in a circumferential array on a nozzle support frame that is oscillating in the front-back direction of the self-propelled sprayer and in the circumferential direction of the spray discharge part. Oscillates in the front-back direction of the self-propelled spray vehicle and in the circumferential direction of the spray discharge part by the front-rear direction drive device and the circumferential direction drive device. It can be swung back and forth, up and down, and left and right by a common front-rear driving device and a common circumferential driving device. Therefore, it is possible to simplify the drive structure for swinging the plurality of nozzles all at once, and the objects to be sprayed such as the leaves of the tree are not shaken by the wind from the blower, and various Since the spray can be sprayed from the direction, it is possible to omit the blower from the self-propelled spreading vehicle.

According to the second aspect of the invention, in each nozzle, the base end portion of the shaft portion is rotated by the rotating means while the axis line of the shaft portion maintains the inclination with respect to the center line of the universal bearing for supporting the shaft portion, Perform a neck movement. Therefore, the spray angle can be further varied, and the adhesiveness of the spray to the entire object to be sprayed is improved. Further, since each rotating means receives the rotary power from the common rotary drive device through the endless member, the drive structure for the nozzle turning movement is simplified.

[Submission date] March 5, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

Returning to FIG. 5 , the cases 84 and 86 of the universal bearing 80 are supported by the nozzles so that the axis of the pipe portion 78 of the nozzle 22 is inclined by θ ° with respect to the center line of the universal bearing 80. It is fixed to the outer arc portion 90 (FIG. 1) of the holding frame 40. With the rotation of the driven sprocket 54, the rotating means 58 rotates, and the center of the ball joint 76 rotates on an arc of radius L from the center line of the rotating shaft 60. Since the base end side of the pipe portion 78 is rotated by the stay 74, the nozzle 22 rotates while the axis of the pipe portion 78 holds the inclination of θ ° with respect to the center line of the universal bearing 80.

[Brief description of drawings]

FIG. 1 is a detailed view of a left half portion of a spray discharge unit.

FIG. 2 is a detailed view of the right half of the spray discharge unit.

FIG. 3 is a view showing the lower part of the spray discharge unit from the side of the self-propelled spraying vehicle.

FIG. 4 is a view on arrow V4 in FIG.

FIG. 5 is a detailed view of a nozzle and its rotating means.

FIG. 6 is a vertical sectional view of a universal bearing.

FIG. 7 is a view of the universal bearing as seen from the tip side of the nozzle.

FIG. 8 is a schematic side view of the self-propelled spreading vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Self-propelled spreading vehicle 20 Spray discharge part 22 Nozzle 36 Electric cylinder for front-back swing (front-back direction drive device) 40 Support frame for nozzle 46 Electric cylinder (circumferential drive device) for circumferential swing 50 Motor (rotary drive device) 56 Chain (Endless member) 58 Rotating means 78 Pipe part 80 Universal bearing

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 26, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Explanation of code

[Correction method] Change

[Correction content]

[Explanation of Codes] 10 Self-propelled Spraying Vehicle 20 Spray Discharge Unit 22 Nozzle 36 Electric Cylinder for Front-Back Swing (Front-Back Direction Drive Device) 40 Support Frame for Nozzle (Nozzle Support Frame) 46 Electric Cylinder for Circumferential Swing (Circular Direction Drive Device) ) 50 electric motor (rotary drive device) 56 chain (endless member) 58 rotating means 78 pipe part 80 universal bearing

Claims (2)

[Scope of utility model registration request] 1. A spray discharge part (20) opening toward the periphery.
In the self-propelled spreading vehicle (10), the spray discharge part (20)
A nozzle support frame (40) that is disposed inside and is supported by the vehicle body (24) so as to be swingable in the front-back direction of the self-propelled spraying vehicle (10) and in the circumferential direction of the spray discharge part (20); A plurality of nozzles (22) arranged in the circumferential direction of the spray discharge part (20) and attached to the nozzle support frame (40), and during the spraying work, the nozzle support frame (40) is attached to the self-propelled spray vehicle ( (10) front-back direction drive device (36) for swinging in the front-back direction, and a circumferential drive device (46) for swinging the nozzle support frame (40) in the circumferential direction of the spray discharge part (20) during the spraying work. ) And a self-propelled spraying vehicle. 2. A shaft bearing (78) of each nozzle (22) is a universal bearing.
(80) is supported by the nozzle support frame (40),
During the spraying operation, the rotating means (58) for rotating the base end portion of the shaft portion (78) while maintaining the inclination of the shaft portion (78) with respect to the center line of the universal bearing (80) includes the nozzles. (22) is provided for each, the rotating means (58) is a common rotary drive device (50)
The self-propelled spreading vehicle according to claim 1, characterized in that it receives rotational power from the endless member (56).