JP3576349B2 - Equipment with blower - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device with a blower such as a medicine sprayer for spraying a medicine on a field or a blower for discharging wind such as blow-collecting of fallen leaves, and more particularly to a device with a blower capable of adjusting the direction of the blower in the vertical and horizontal directions. It is about.
[0002]
[Prior art]
In the medicine spraying device disclosed in Japanese Patent Publication No. 4-76743, the direction of the discharge side opening of the fan case is changed in the vertical and horizontal directions while maintaining the fan and the fan case accommodating the hydraulic motor for driving the fan at a predetermined height. Make changes possible. In such a medicine spraying apparatus, a hydraulic hose is provided for supplying and discharging hydraulic pressure between a hydraulic pump and a hydraulic motor in a fan case.
[0003]
[Problems to be solved by the invention]
In the conventional medicine spraying device, piping of the hydraulic hose is not particularly considered. Since the hydraulic hose guides a high-pressure hydraulic pressure, its flexibility is reduced in order to secure strength, and if it is forcibly twisted, its durability is deteriorated.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a device with a blower which can smoothly cope with a change in the direction of a blower of a fan case and can prevent a decrease in durability of a hydraulic hose.
[0005]
[Means for Solving the Problems]
[0006]
The device (10) with a blower of the present invention has the following (a) to (e).
(A) A fan case (30) having both ends opened in the axial direction and containing a fan and a hydraulic motor for driving the fan inside
(B) an upright frame (28) that rotatably supports a fan case (30) around a horizontal line at an upper end portion;
(C) A base (22) supporting the lower end of the upright frame (28) such that the discharge-side opening (32) of the fan case (30) rotates around a vertical line between left and right.
(D) a hydraulic pump (e) mounted on the base (22), ascending along one side of the upright frame (28), connecting the hydraulic pump and the hydraulic motor, and connecting the hydraulic pump and the hydraulic motor to the discharge side of the fan case (30). A hydraulic hose (50) that is wound substantially once in one of the left and right directions of the opening (32) and is unwound in the other direction.
have.
[0007]
The fan case (30) swings up and down by rotation about an almost horizontal line at the upper end of the upright frame (28), and the upright frame (28) moves relative to the base (22) about a substantially vertical line. It swings horizontally by rotation. Since the hydraulic hose (50) connects the fan case (30) and the base (22), the hydraulic hose (50) is twisted with the relative displacement of the fan case (30) with respect to the base (22). In the one side and the other side of the left and right sides of the discharge side opening (32) of 30), the winding is in the once-wound state and the unwound state, respectively, and the twist is limited to a minimum. Thus, the hydraulic hose (50) follows the relative displacement of the fan case (30) with respect to the pedestal (22), and prevents a decrease in durability.
[0008]
According to another device with a blower (10) of the present invention, the upright frame (28) further has a transverse portion (42) extending in a transverse direction of the base portion (22) below the fan case (30). A loop hose guide (56) is attached to the cross section (42) and passes through the hydraulic hose (50).
[0009]
The loop-shaped hose guide (56) swings integrally with the upright frame (28) around a substantially vertical line, and passes through the hydraulic hose (50) below the fan case (30), so that the loop-shaped hose guide (56) passes therethrough. Is defined. Thereby, the switching between the wound state and the unwound state of the hydraulic hose (50) is facilitated.
[0010]
Another device (10) with a blower according to the present invention further comprises a base (58) fixed to the upright frame (28) and rotatably supported on the base (22) substantially around a vertical line at one end. An arm (68) pivotally supported on the base (22) so as to be rotatable about a vertical line, and rotatably mounted on the upright frame (28) and the other end of the arm (68) at one end and an intermediate portion, respectively. A link (64) is pivotally supported, and a turning cylinder (74) is rotatably supported at both ends by the other end of the link (64) and the base (22).
[0011]
The junction of the base (58), arm (68) and link (64) forms a four-bar swivel chain (86). By rotating the upright frame (28) about a vertical line using a four-bar rotating chain (86), each rotation of the upright frame (28) against the constant speed expansion and contraction of the turning cylinder (74) is performed. The rotational speed of the position can be set to an appropriate value.
[0012]
According to another apparatus (10) with a blower of the present invention, the base (22) further comprises a frame material (46). The hydraulic hose (50) moves up and down a range (84) between the frame member (46) and the turning cylinder (74) and not overlapping with the motion range of the motion element when the upright frame (28) turns, when viewed from above. Passing in the direction.
[0013]
On the way from the fan case (30) to the hydraulic pump, the hydraulic hose (50) passes vertically through the height of the base (58), the arm (68), the link (64), and the turning cylinder (74). There must be. When the hydraulic hose (50) passes through the range (84), the passage portion at that height is appropriately set.
[0014]
The device (10) with a blower of the present invention has the following (a) to (f).
(A) Wheeled trolley (22) connected to self-propelled vehicle (12) via three-point link (14)
(B) A hydraulic pump (c) disposed on a wheeled trolley (22) and driven by the power of a PTO shaft (20) of a self-propelled vehicle (12). Fan case (30) containing hydraulic motor to be driven
(D) At the upper end, the fan case (30) is rotatably supported around a horizontal line so that the discharge-side opening (32) of the fan case (30) rotates around a vertical line between left and right. Upright frame (28) supported at its lower end by wheeled trolley (22)
(E) Hydraulic pump (50) mounted on wheeled trolley (22) Hydraulic hose (50) ascending along one side of upright frame (28) to connect hydraulic pump and hydraulic motor
have.
[0015]
Whereas the conventional device with a blower is directly assembled to the self-propelled vehicle (12), the device with the blower (10) is connected to the self-propelled vehicle (12) such as an agricultural tractor by a three-point link (14). , The operation and the simplification of the device can be more efficiently performed as compared with the assembly type.
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 2 is a side view showing the spraying device 10 and the agricultural tractor 12 in a connected state. The agricultural tractor 12 includes three-point links 14 and 26 at the rear, and the three-point link 14 has one upper link 16 and two lower links 18. The frame base 22 of the spraying apparatus 10 has a total of four casters 24 on the front, rear, left and right, and is connected to the agricultural tractor 12 via the three-point link 14. The hydraulic pump is provided in the frame base 22 and is driven by rotational power from the PTO shaft 20. The support frame 28 stands from the frame base 22 and supports the fan case 30 at the upper end so as to be tiltable around a horizontal line. The tilt hydraulic cylinder 29 is installed on the side of the fan case 30 opposite to the hydraulic hose 50, and adjusts the tilt angle of the fan case 30 within a predetermined range with respect to a horizontal plane by expansion and contraction.
[0016]
FIG. 1 is a perspective view of a main part of the spraying device 10. The fan case 30 has both ends in the axial direction as a suction-side opening 31 and a discharge-side opening 32, and a half of the discharge-side opening 32 has a taper whose diameter gradually decreases toward the discharge-side opening 32. The area of the discharge side opening 32 is further reduced. The annular nozzle pipe 34 extends along the periphery of the discharge side opening 32, and the plurality of nozzles 36 are attached to the annular nozzle pipe 34 at equal intervals. The straight nozzle pipe 38 traverses the discharge side opening 32 along the horizontal diameter of the discharge side opening 32, and two nozzles 40 are attached to the straight nozzle pipe 38 substantially at the center of the discharge side opening 32. Have been. The fan case 30 houses a fan and a hydraulic motor (both not shown) for driving the fan.
[0017]
The support frame 28 pivots the fan case 30 around a horizontal line by rising from both ends of the horizontal frame 42 at the lower side of the fan case 30 and reaching both sides of the fan case 30 at the upper end. A vertical frame portion 44 for freely supporting. The frame base 22 has left and right side frames 46 extending in the front-rear direction, and an intermediate horizontal frame 48 connecting the two side frames 46. The hydraulic hose 50 is composed of a total of three, two for supply and discharge and one for drain, and is connected to a hydraulic motor in the fan case 30 at the upper end, and from the outside to the inside of one of the vertical frame parts 44 at the middle part. And is connected to the hydraulic pump and the oil tank in the frame base 22 at the lower end. There are two liquid hoses 52, one for the annular nozzle pipe 34 and one for the straight nozzle pipe 38. The liquid hose 52 is connected to the annular nozzle pipe 34 and the straight nozzle pipe 38 at the upper end, and the connection port 54 at the lower end is connected to one end. It is located at the lower end of the vertical frame part 44. The guide 55 rises from the horizontal frame 42 at a position slightly deviated from the center of the horizontal frame 42 toward the vertical frame 44 on the side of the hydraulic cylinder 29 for tilting, and has an annular ring 56 at the upper end. The hydraulic hose 50 is passed through a ring 56.
[0018]
FIG. 3 is a detailed view of a connecting portion between the support frame 28 and the intermediate horizontal frame 48. The hanging frame 57 hangs down from the lower surface of the central portion of the horizontal frame portion 42, and the overhanging plate 58 projects toward the middle horizontal frame 48 while being fixed to the lower end of the hanging frame 57, and is rotatable around the vertical direction. The connecting shaft 60 is supported by the intermediate horizontal frame 48. The hanging bar 62 hangs down from the lower surface of the horizontal frame portion 42, and the “U” -shaped link plate 64 is rotatably connected around the vertical line to the hanging bar 62 at one end by a connecting shaft 66. The arm 68 is connected to the intermediate portion horizontal frame 48 so as to be rotatable around a vertical line by a connecting shaft 70, and is connected to the intermediate portion of the link plate 64 so as to be rotatable around the vertical line by a connecting shaft 72. The turning hydraulic cylinder 74 is rotatably connected to a rear side frame 76 of the frame base 22 at a rear end portion so as to be rotatable around a vertical line, and is rotatable around the vertical line by a connecting shaft 78 at a front end portion. It is connected to the other end. The range 84 is a range surrounded by the side frame 46, the intermediate horizontal frame 48, and the rear horizontal frame 76 of the frame base 22 when viewed from above, and during the movement of the support frame 28 due to the expansion and contraction of the turning hydraulic cylinder 74. The range does not overlap with the range of motion of the motion elements such as the support frame 28 and the turning hydraulic cylinder 74.
[0019]
FIG. 4 is a view of the connecting portion between the support frame 28 and the intermediate portion horizontal frame 48 as seen from another angle than FIG. The notch 80 is formed in the overhang plate 58 to avoid interference between the coupling shaft 70 and the overhang plate 58. The notch 82 is formed in the hanging frame 57 to avoid interference between the hanging frame 57 and the link plate 64.
[0020]
FIG. 5 is a view of the connecting portion between the support frame 28 and the intermediate horizontal frame 48 as viewed from above. The connecting shafts 60, 66, 70, 72 form a four-bar rotating chain 86.
[0021]
The spraying device 10 rotates the support frame 28 around a vertical line by the expansion and contraction of the turning hydraulic cylinder 74, so that the discharge-side opening 32 of the fan case 30 is centered right behind and within a predetermined range on the left and right. Can be changed. The fan case 30 changes the tilt angle with respect to the horizontal plane by the expansion and contraction of the tilt hydraulic cylinder 29, whereby the direction of the discharge side opening 32 can be changed in the vertical direction within a predetermined range. The spraying device 10 is used as a chemical sprayer, an irrigation device, or a fine mist air conditioner that sprays a fine mist over the turf and cools the turf by spraying a chemical or water from the nozzles 36 and 40. In addition, the spraying of the liquid from the nozzles 36 and 40 is stopped, and only the fan in the fan case 30 is driven to blow and collect fallen leaves and the like by a wind force, and also used as a blower for blowing dead leaves.
[0022]
FIG. 6 shows the positions on the locus of the coupling shafts 72 and 78 when the coupling shaft 66 is rotated by 10 ° with respect to the coupling shaft 60. The coupling shaft 66 rotates with respect to the coupling shaft 60 due to expansion and contraction of the turning hydraulic cylinder 74, and as a result, the support frame 28 rotates around a vertical line with respect to the frame base 22. In this way, the direction of the discharge side opening 32 of the fan case 30 can be changed in the right and left ranges centering directly behind the spraying device 10. A, B, and C indicate the trajectories of the connecting shafts 66, 78, and 72, respectively, with respect to the expansion and contraction of the turning hydraulic cylinder 74. Each position of the coupling shaft 78 on B is sparse at both ends of B and dense at the center, relative to the position of the coupling shaft 66 at 10 ° intervals on A. Therefore, when the coupling shaft 78 is extended at a constant speed, the coupling shaft 66 rotates at a low speed in both end ranges of A and rotates at a high speed in the central range of A.
[0023]
FIG. 7 is a view of the state of the hydraulic hose 50 when the fan case 30 turns the discharge side opening 32 to the right as viewed from the right side of the frame base 22, and FIG. 8 shows the fan case 30 with the suction side opening 31 turned to the right. FIG. 5 is a diagram of the state of the hydraulic hose 50 when viewed from the right side of the frame base 22 when the discharge side opening 32 is turned to the left (= when the discharge side opening 32 is turned to the left). When the fan case 30 directs the discharge side opening 32 to the right, the hydraulic hose 50 is in a one-turn state. When the fan case 30 directs the discharge side opening 32 to the left, the hydraulic hose 50 is It is in a state where it is unwound and extended. Thereby, the torsion of the hydraulic hose 50 due to the left and right rotation of the support frame 28 is suppressed, and a decrease in the durability of the hydraulic hose 50 can be prevented.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part of a spraying device.
FIG. 2 is a side view showing the spraying device and the agricultural tractor in a connected state.
FIG. 3 is a detailed view of a connecting portion between a support frame and an intermediate horizontal frame.
FIG. 4 is a view of the connecting portion between the support frame and the intermediate horizontal frame viewed from a different angle from FIG. 3;
FIG. 5 is a view of a connecting portion between the support frame and the intermediate portion horizontal frame as viewed from above.
FIG. 6 is a diagram showing positions on the trajectory of each coupling axis when the coupling axis is rotated by 10 ° with respect to the coupling axis.
FIG. 7 is a view of the state of the hydraulic hose when the fan case turns the discharge side opening to the right, as viewed from the right side of the frame base.
FIG. 8 is a view of the state of the hydraulic hose when the fan case turns the suction side opening to the right as viewed from the right side of the frame base.
[Explanation of symbols]
10 Spraying device (device with blower)
12 Agricultural tractor (wheeled trolley)
14 Three-point link 20 PTO shaft 22 Frame base (trolley with wheels, base)
28 Support frame (standing frame)
30 Fan case 32 Discharge side opening 42 Horizontal frame (transverse part)
46 Side frame 50 Hydraulic hose 56 Ring (loop hose guide)
58 Overhang board (base)
64 link plate (link)
68 Arm 74 Hydraulic cylinder for rotation (cylinder for rotation)
84 Range 86 Four-bar rotation chain

Claims (4)

(A) a fan case (30) having both ends opened in the axial direction and containing a fan and a hydraulic motor for driving the fan inside;
(B) an upright frame (28) rotatably supporting the fan case (30) around a horizontal line at an upper end portion;
(C) a base supporting the lower end of the upright frame (28) such that the discharge side opening (32) of the fan case (30) rotates around a vertical line between left and right. twenty two),
(D) a hydraulic pump mounted on the base (22), and (e) a fan that rises along one side of the upright frame (28) to connect the hydraulic pump and the hydraulic motor, and A hydraulic hose (50) that is wound almost once in one of the left and right directions of the discharge side opening (32) of the case (30) and is unwound in the other direction,
A device with a blower, characterized by having: The upright frame (28) has a transverse section (42) extending in a transverse direction of the base section (22) below the fan case (30), and the loop-shaped hose guide (56) is provided with the transverse section (42). The device with a blower according to claim 1, wherein the device is attached to the hydraulic hose (50) and passes through the hydraulic hose (50). A base (58) fixed to the upright frame (28) and rotatably supported on the base (22) so as to be rotatable about a vertical line, and the base part being rotatable about a vertical line at one end side. An arm (68) pivotally supported by (22), a link (64) rotatably supported by the upright frame (28) and the other end of the arm (68) at one end and an intermediate portion, respectively; And a turning cylinder (74) rotatably supported at both ends thereof on the other end side of the link (64) and the base (22), respectively. 2. The device with a blower according to 2. The base part (22) is made of a frame material (46), and the hydraulic hose (50) is located between the frame material (46) and the turning cylinder (74) and the upright frame (28 The device with a blower according to claim 3, characterized in that it passes vertically through a range (84) that does not overlap with the range of motion of the motion element at the time of turning.

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