JP3554545B2 - Manure spreader - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides an airframe, on which an impeller case for storing an impeller is mounted, and a hopper in which fertilizer is charged is mounted above the impeller case, and powdery / granular fertilizer fed out from the hopper is mounted. The present invention relates to an impeller-type fertilizer spreader for spraying and dispersing by spraying an impeller rotating in an impeller case.
[0002]
[Prior art]
As shown in FIG. 1, the fertilizer spreader of the above-described embodiment is usually configured to be mounted on a towed vehicle that is connected to and pulled by a self-propelled vehicle or a towing vehicle such as a tractor. An upright central drive shaft 2 and an outer cylindrical shaft 3 fitted in an outer cylindrical shape around its outer periphery are provided on the upper surface side of the case M in a double shaft shape aligned with the same axial center line in the vertical direction. The lower end of the drive shaft 2 and the lower end of the outer cylinder shaft 3 are separately transmitted to a transmission mechanism d1 and a transmission mechanism d2 of a transmission mechanism D mounted in the transmission case M, and the upper end of the outer cylinder shaft 3 The upper side of the center drive shaft 2 which is connected to the shaft center portion of the impeller 4 housed in the impeller case C which is arranged above the transmission case M and mounted on the fuselage, and which is transmitted to the transmission mechanism d1. In the hopper H which can be arranged above the impeller case C and mounted on the fuselage. The hopper H is connected to the agitator 5 for stirring provided in the hopper H, whereby the fertilizer is charged into the hopper H, and the input shaft 1 is driven to drive the center drive shaft 2 and the When the cylinder shaft 3 is rotated, the input fertilizer is agitated by the agitator 5 rotated by the central drive shaft 2 and fed out from the outlet h provided at the bottom of the hopper H into the impeller case C. In this way, the impeller 4 is swung by the rotating impeller 4, and is discharged and scattered from a discharge port provided on the peripheral wall of the impeller case C.
[0003]
A transmission mechanism D for transmitting rotational power from the input shaft 1 to the center drive shaft 2 and the outer cylinder shaft 3 is a transmission mechanism d1 including a gear G1 and a gear G2 for rotating the center drive shaft 2 at a reduced speed with respect to the input shaft 1. And a transmission mechanism d2 composed of a gear G3 and a gear G4 for rotating the outer cylinder shaft 3 at the same speed or at an increased speed with respect to the input shaft 1, and a transmission mechanism d2 for the outer cylinder shaft 3 is provided with a clutch. By operating the lever 10, there is provided a clutch 11 that “enters” and “disengages” the transmission with the input shaft 1, and a one-way clutch 12 is provided between the center drive shaft 2 and the outer cylinder shaft 3. Is set to “enter”, the center drive shaft 2 provided with the agitator 5 rotates at a reduced speed with respect to the input shaft 1, and the outer cylinder shaft 3 provided with the impeller 4 is moved at a constant speed or an increased speed with respect to the input shaft 1. Rotate, this will sprinkle out the fertilizer The impeller 4 rotates at a high speed to adapt to spraying, and the agitator 5 for stirring fertilizer rotates at a low speed to adapt to stirring, so that the impeller 4 and the agitator 5 rotate at different rotational speeds. It comes to rotate.
[0004]
When the clutch 11 is set to “disengage”, the center drive shaft 2 provided with the agitator 5 rotates at a reduced speed, and the outer cylinder shaft 3 provided with the impeller 4 follows the center drive shaft 2 by the one-way clutch 12. It is designed to rotate at a reduced speed.
[0005]
[Problems to be solved by the invention]
The fertilizer sprayer of the above-described form, when a desired fertilizer is selected from a compound fertilizer such as a granular fertilizer or a powdery fertilizer and an organic fertilizer such as compost as a fertilizer to be sprayed, is adapted to the properties of the fertilizer. In order to change the operating state of the agitator rotating in the hopper by the center drive shaft and the rotation speed of the impeller rotating by the outer cylinder shaft, the drive shaft of the impeller of the transmission mechanism housed in the transmission case The transmission path that drives the outer cylinder shaft is provided with a clutch that performs the “ON” and “OFF” operations by operating the clutch bar, and this enables the change and adjustment to be performed. There is a problem that the volume of the mission case increases and the handling becomes inconvenient.
[0006]
Also, in order to change and adjust the operating state of the agitator and the impeller according to the properties of the fertilizer to be sprayed, keep the center shaft that is connected to the agitator and decelerates and rotates in a fixed state, and connected to the impeller The transmission clutch for the input shaft of the outer cylinder shaft to be rotated at constant speed or increased speed is turned on and off by the operation of the clutch. Since it is configured to switch to the state of following and rotating, for example, when spraying organic fertilizer such as compost, the impeller requires a sufficient centrifugal force for spraying, so that the impeller has a constant speed or relative to the input shaft. The agitator, which rotates at an increased speed and rotates in the hopper, rotates at a low speed to prevent bridges in the hopper and adapts well, but when spraying granular fertilizer or soil conditioner that is difficult to cause bridges Ku, in the case where it is desired to the rotation of the agitator is stopped to prevent the fracture of the fertilizer particle is a problem which can not adapt.
[0007]
In addition, when spraying the organic fertilizer in the case of spraying the above-mentioned granular fertilizer or soil improvement material, it is desirable that the agitator rotating in the hopper is not rotated, but the agitator facing the outlet at the bottom of the hopper is always decelerated. It is desirable to do so. However, there is a problem that it is difficult to make such a state.
[0008]
The present invention has been made in order to solve the above-mentioned problem occurring in the conventional impeller-type fertilizer spreader, and is provided with respect to a center drive shaft for driving an agitator and an outer cylinder shaft for driving an impeller. The transmission mechanism for transmitting the rotational power input from the input shaft does not include a clutch mechanism, but simplifies the configuration of the transmission mechanism between the input shaft, the center drive shaft, and the outer cylinder shaft. When the fertilizer to be sprayed is a granular fertilizer that is easily crushed while driving so that the agitator for agitation and the agitator for agitation rotate at different rotational speeds, the agitator for the agitation It is an object of the present invention to provide a new means for turning off the rotation or removing the whole from the hopper H.
[0009]
[Means for Solving the Problems]
In the present invention, as a means for achieving the above-described object, an impeller that rotates with a longitudinal axis above a transmission case M mounted on a body F that travels by self-traveling or towed. The impeller case C, which houses therein an impeller case C, and a hopper H, in which a stirring agitator 5 whose inner axis rotates with a vertical rotation shaft 20 in the inner cavity, is provided. It is mounted so as to be positioned and mounted on the body F. The transmission case M has a center drive shaft 2 on its upper surface side, the center of which is vertically aligned with the axis of the upper end which protrudes into the hopper H, and the center thereof. An outer cylinder shaft 3 fitted in an outer cylinder shape is rotatably supported on the outer periphery of the base end side of the drive shaft 2 in a rotatable manner, and rotational power input from the input shaft 1 is provided inside the transmission case M. Decelerate the central drive shaft 2 A power transmission mechanism d1 for transmitting power and a power transmission mechanism d2 for transmitting the rotational power input from the input shaft 1 to the outer cylinder shaft 3 at substantially the same speed or at an increased speed are stored therein. An extension 2a whose upper end extends toward an opening 80 on the upper surface side of the hopper H is detachably connected to the base end 2b through a shaft joint a. The rotary shaft 20 of the agitator 5 for stirring provided in the shape of a sheath is formed in a sheath cylindrical shape and is rotatably fitted. The rotary shaft 20 is “entered” “cut” into the extension 2 a of the central drive shaft 2. Power is transmitted via a free clutch K, an agitator b for feeding is provided at the base end 2b of the center drive shaft 2, and the upper end side of the outer cylinder shaft 3 is connected to the shaft core of the impeller 4. It proposes a characteristic fertilizer spreader.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The impeller-type fertilizer spreader according to the means of the present invention is provided above a mission case which can be mounted on a self-propelled body or a towed type body which is connected to a tow vehicle such as a tractor and run. An impeller case for storing an impeller rotating with a longitudinal axis and a hopper equipped with an agitator for rotating the agitator in the bore so that the hopper is located above the impeller case. A center drive shaft is mounted on the upper side of the transmission case so as to be located at the center of the impeller case and the hopper, and a double shaft outer cylinder is fitted around the center drive shaft. With the outer cylinder shaft rotating together, the center drive shaft of them is linked to the agitator for stirring in the hopper, and the outer cylinder shaft is linked to the shaft center of the impeller. , To this center drive shaft and outer cylinder shaft, The rotational power inputted from the power shaft, by transmitting to drive through a transmission mechanism D incorporated into the transmission case, so as to rotate the impeller and agitator.
[0011]
At this time, the transmission mechanism D that transmits the rotational power from the input shaft to the center drive shaft and the outer cylinder shaft includes a transmission mechanism d1 that reduces the rotational power input from the input shaft and transmits the rotational power to the center drive shaft, The transmission mechanism d2 transmits the input rotational power to the outer cylinder shaft at a constant speed or at an increased speed, and the transmission mechanism d2 uses an impeller in the impeller case and an agitator in the hopper at different rotational speeds. Drive to rotate with.
[0012]
Further, the transmission mechanism D incorporated in the transmission case is not provided with a clutch mechanism, and the configuration of the transmission mechanism D is simplified.
[0013]
Then, the impeller and the agitator are driven to rotate at different rotational speeds, and the clutch for turning on / off the drive of the agitator is rotated to the upper end side protruding into the hopper of the center drive shaft. By freely fitting a shaft cylinder, attaching an agitator for stirring to the shaft cylinder, and providing a clutch for transmitting and disconnecting the rotational power between the shaft cylinder and the central drive shaft, thereby providing a clutch. The drive of the agitator is turned off by operating the clutch.
[0014]
FIG. 2 shows an example of an embodiment of the fertilizer spreader A according to the means of the present invention. In the drawings, the same reference numerals are used for components having the same effects as those of the conventional means.
[0015]
In the drawing, M is a transmission case also serving as an assembling machine frame for the fuselage, C is an impeller case mounted and mounted on the upper surface side thereof, and H is an assembly and mounting device arranged above the impeller case C. 2 shows a mounted hopper.
[0016]
The fertilizer spreader A of this embodiment is configured such that its body is connected to and mounted on the rear side of the body of the tractor via a three-point link hitch and is of a towed type that travels by the tractor. As shown in FIGS. 3 to 5, the transmission case M has a connecting hitch 60 connected to a lower link and a top link of a three-point link hitch provided at the front end side on the rear side of the body of the tractor. An assembling seat 62 is provided on the body F of the fertilizer spreader A provided with 61, and the assembling seat 62 is assembled and mounted.
[0017]
The hopper H is mounted on a mounting base 63 provided on the fuselage F, and the impeller case C has a top plate 70 provided around the bottom of the hopper H with a cover support 71 Is mounted on the fuselage F by being suspended and supported, and a spray port 72 is formed on the rear side.
[0018]
In FIG. 6, reference numeral 2 denotes a center drive shaft provided upright on the upper surface side of the transmission case M and supported by the transmission case M. The input shaft 1 is supported by the transmission case M, the small-diameter gear G1 and the large-diameter gear G1. The power is transmitted by a transmission mechanism d1 including a gear G2 having a diameter, and the rotation is reduced with respect to the input shaft 1.
[0019]
Referring again to FIG. 2, reference numeral 2a denotes an upper extension projecting into the hopper H on the upper end side of the center drive shaft 2, and a base end located at the lower end side of the center drive shaft 2 and at the bottom in the hopper H. 2b is separated and formed separately, and is detachably connected to a base end 2b of the center drive shaft 2 via a shaft joint a.
[0020]
The upper extension 2a of the center drive shaft 2 has its upper end supported by a bearing support member 81 bridged in a bridge shape as shown in FIG. The hopper H is rotatably and detachably supported on the bearing 82, the lower end is removed from the base end 2b by the above-described shaft joint a, and the upper end is pulled out from the bearing 82. It can be taken out from inside.
[0021]
Reference numeral 20 denotes a rotating shaft of the agitator 5, which is formed as a sheath cylindrical shaft tube rotatably fitted to the outer periphery of the upper extension 2a of the center drive shaft 2 via bushes 21. The upper end 200 thereof is vertically separated from the main body 201, joined by joining flanges 22, 23 provided at their detached ends, and these joining flanges 22, 23 are closed and connected by shear pins 24. Are connected together.
[0022]
In the separated upper end 200, a clutch pin k constituting the clutch K is freely inserted into and removed from the upper end of the upper extension 2a of the center drive shaft 2. By the insertion, the transmission between the rotary shaft 20 and the upper extension 2a of the center drive shaft 2 is in the "in" state, and the removal of the clutch pin k causes the transmission to be in the "off" state.
[0023]
In addition, agitating agitators 5.5 that rotate along the inner wall surface of the hopper H are attached to the outer periphery of the main body 201 of the rotating shaft 20 via stays 25, and this is attached to the main body 201. The rotation operation is controlled to be on / off by turning on / off the rotation power by inserting and removing the clutch pin k.
[0024]
Reference character b denotes an agitator for feeding fertilizer provided so as to rotate on an upper surface side of a feeding outlet h of the fertilizer provided at the bottom of the hopper H, and a base end portion 2b located below the shaft joint a of the central drive shaft 2. It is attached to.
[0025]
Reference numeral 3 denotes an outer cylinder shaft which is supported upright on the upper surface side of the transmission case M so as to rotate the outer periphery of the center drive shaft 2 in an outer cylinder shape, and a large-diameter gear G3 provided on the input shaft 1; And a gear G4 provided at the lower end of the outer cylinder shaft 3 and having a diameter substantially the same as that of the input shaft 1. The transmission mechanism d2 rotates at a constant or increased speed with respect to the input shaft 1.
[0026]
The upper end side of the outer cylindrical shaft 3 is connected via a flange 30 to a shaft core portion of the impeller 4 housed in the impeller case C.
[0027]
【The invention's effect】
As described above, the fertilizer spreader according to the present invention is configured such that the impeller case C for storing the impeller 4 by arranging it above the transmission case M mounted on the body traveling by self-propulsion or towing is provided. And a hopper H equipped with an agitator 5 for agitation in the inner cavity are mounted one above the other, and the rotating shaft 20 of the agitator 5 for agitation is formed in a sheath shaft shape, and the upper end side is the upper surface side of the hopper H The center drive shaft 2 is rotatably fitted to the outer periphery of an extension shaft 2a which is removably connected to the upper end side of the center drive shaft 2 via a shaft joint a so as to extend toward the opening 80 of the center drive shaft 2. An outer cylinder which is provided with a clutch K which can be "entered" and "disengaged" therebetween, and which is fitted on the outer periphery of the lower end side of the center drive shaft 2 with the shaft core portion of the impeller 4 to be mounted on the body F. Each of which is connected to the shaft 3 and the central drive shaft 2 and the outer cylinder shaft 3 are provided in the transmission case M Since the impeller 4 and the agitator 5 are driven to rotate at different rotational speeds by transmitting to the input shaft 1 via the transmission mechanisms d1 and d2, the center drive shaft 2 and the outer cylinder shaft 3 are connected to the input shaft. 1 while dispersing the granular fertilizer which is susceptible to crushing by the operation of the agitator 5 for stirring, while keeping the transmission mechanism for transmitting to 1 simple, the transmission mechanisms d1 and d2 for the center drive shaft 2 and the outer cylinder shaft 3 are left as they are, In addition, the rotation of the agitator 5 for stirring can be easily turned off or removed from the hopper H while the agitator b for feeding is left.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a conventional fertilizer spreader.
FIG. 2 is a longitudinal side view of a fertilizer spreader implementing the means of the present invention.
FIG. 3 is a plan view of the fertilizer spreader according to the first embodiment.
FIG. 4 is a side view of the fertilizer spreader according to the first embodiment.
FIG. 5 is a front view of the fertilizer spreader according to the first embodiment.
FIG. 6 is an enlarged vertical sectional side view of a main part of the fertilizer spreader according to the first embodiment.
[Explanation of symbols]
A: Fertilizer spreader, C: Impeller case, D: Transmission mechanism, F: Airframe, H: Hopper, K: Clutch, M: Transmission case, G1, G2, G3, G4: Gear, a: Shaft joint, b ... Agitator for feeding out, d1 and d2 ... Transmission mechanism, h ... Outlet, k ... Clutch pin, 1 ... Input shaft, 10 ... Clutch lever, 11 ... Clutch, 12 ... One-way clutch, 2 ... Center drive shaft, 2a ... Upper extension, 2b Base end, 20 Rotation shaft, 21 Bush, 200 Upper end, 201 Main body, 22/23 Joining flange, 24 Shear pin, 25 Stay, 3 Outer cylinder shaft, Reference numeral 30: flange, 4: impeller, 5: agitator, 60/61: connecting hitch, 62: mounting seat, 63: mounting base, 70: top plate, 71: cover support bracket, 72: spray port, 80: open Mouth, 81: bearing support member, 82: bearing

Claims (1)

An impeller case C for storing an impeller 4 that rotates with a longitudinal axis above a transmission case M mounted on a body F that travels by self-propelled or towed, and an axial center line in the bore. And a hopper H provided with a stirrer agitator 5 that rotates with the rotating shaft 20 of the above, is mounted on the fuselage F with the hopper H positioned above the impeller case C, and mounted on the transmission case M. A central drive shaft 2 having an upper end portion projecting into the hopper H on its upper surface side and having an axial center line extending in a vertical direction, and an outer cylindrical shape fitted to an outer periphery of a base end side of the central drive shaft 2 in an outer cylindrical shape. A transmission mechanism d1 for rotatably supporting the cylindrical shaft 3 and a transmission mechanism d1 for reducing the rotational power input from the input shaft 1 and transmitting the rotational power to the central drive shaft 2 inside the transmission case M; The rotational power input from 1 is almost constant speed A transmission mechanism d2 for transmitting the outer cylinder shaft 3 at the highest speed is stored, and the center drive shaft 2 has its base end 2b extending toward its upper end toward the opening 80 on the upper surface side of the hopper H. The extending portion 2a to be ejected is detachably connected via a shaft joint a, and the rotating shaft 20 of the agitator 5 for stirring provided in the hopper H is formed on the outer periphery of the extending portion 2a in a sheath cylindrical shape. The rotation shaft 20 is transmitted to the extension 2a of the center drive shaft 2 via a clutch K which can be "entered" and "disengaged" freely. A fertilizer spreader comprising a feed agitator (b) and an upper end side of an outer cylindrical shaft (3) connected to a shaft core of the impeller (4).

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