JPH032481B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automatic compost spreading device in a compost spreading vehicle.

Conventionally, in a compost spreading device in which the main beater 5 was installed in a fixed position at the rear end of the compost box a of the compost spreading vehicle A, the main beater 5 was installed on the floor of the compost box a as shown in Fig. The feed rate of the floor conveyor 1 was determined by operating the manual lever 2 before work and activating the feed speed adjustment device 3 of the floor conveyor 1. , uneven distribution is likely to occur.

As a means to eliminate this uneven distribution, as stated in German Patent Publication No. 2452035, the main beater, which is the rear wall of the transport vehicle that houses the harvested crops, is made to be able to slide back and forth, and the By linking a spring that biases the spring and connecting its back and forth movement to the control element of the drive mechanism that drives the floor conveyor via a link mechanism, the harvested crops conveyed by the floor conveyor can be Depending on the pressure applied to this main beater by
Means have been proposed to automatically control the feed rate of the floor conveyor.

However, this method is suitable when the material to be conveyed by the floor conveyor has a relatively uniform density, but when the material has a wide variety of densities and specific gravity, such as compost, the material is transferred to the main beater. As the transfer pressure increases and decreases frequently with changes in density and specific gravity, when applied as an automatic compost spreading device in a compost spreading vehicle, the movement amount of the main beater fluctuates in a pulsating state as shown in Figure 8. As a result, a problem arises in that the amount of compost applied by the main beater becomes variable.

The purpose of the present invention is to provide a new means that eliminates the problems that have arisen with conventional means and allows compost with a wide variety of properties to be automatically controlled and spread at a constant amount. That is.

Therefore, the present invention has been completed based on the knowledge obtained through various studies and experiments for the above-mentioned purpose. That is, as shown in FIG. 2, in the case where the main beater 5 installed at the rear end of the compost box a of the compost spreading vehicle A is supported on the vehicle body f so as to be slidable back and forth, the main beater 5 is By simply linking the beater 5 with a spring 9 that urges it forward, and by linking its movement to the feed speed adjustment device 3 of the drive mechanism of the floor conveyor 1, the feed amount of the floor conveyor 1 can be automatically controlled. If you try,
When the main beater 5 repeats the operation of compressing the spring 9 and moving backward as the transfer pressure of the compost conveyed by the floor conveyor 1 increases, and moving forward due to the spring pressure of the spring 9 as the transfer pressure decreases, When a lump of compost, etc. moves backward due to an increase in transfer pressure due to being transferred, it is not pushed backward until one of the intermittent scraping operations by the scraping blade of the rotating main beater 5 is performed. As a result, the spring 9 moves to be compressed to an excessive position, and from that position it is restored by the repulsive force, and
When it moves forward due to a decrease in the transfer amount or a decrease in transfer pressure due to the inflated and soft part being sent,
When the transfer pressure is suddenly released at the end of one operation of the intermittent scraping operation by the scraping blade of the rotating main beater 5, the spring 9 suddenly starts to stretch, becomes extra stretched, and is pushed back from that position. As a result, the main beater 5 moves back and forth as if vibrating, and as a result, as described above, the amount of movement of the main beater 5 changes frequently, making it difficult to keep the amount of compost spread by the main beater 5 constant. It becomes impossible to do so. However, at this time, the main beater 5, which is slidable back and forth, is combined with a spring 9 that biases it forward, as shown in FIG. 7, and a shock absorber that opposes the back and forth movement of the main beater 5. 41 and the back and forth movement of the main beater 5 is linked to the feed speed adjustment device 3 of the floor conveyor 1, the main beater 5 moves back and forth due to changes in the transfer pressure of the compost being conveyed by the floor conveyor 1. When the main beater 5 moves, the shock absorber averages the change in the transfer pressure using its damping force, so that the change over time in the amount of movement of the main beater 5, which moves due to the change in transfer pressure, is shown in Fig. 9. The main beater 5 moves back and forth in response to fluctuations in the transfer pressure of the compost being conveyed by the floor conveyor 1, and automatic control of the feed rate of the floor conveyor 1 is carried out appropriately. This is due to the fact that the amount of compost applied can be kept approximately constant.

Therefore, in the present invention, as a means to achieve the above-mentioned object, the main beater installed at the rear end of the compost box mounted on the vehicle body is supported so as to be slidable back and forth. A spring that pushes forward is connected, and a shock absorber that opposes the back and forth movement of the main beater is connected, so that the back and forth sliding movement of the main beater is continuously or A feed speed adjustment device of a drive mechanism of a floor conveyor suspended so as to rotate intermittently is connected to reduce the feed rate of the floor conveyor in accordance with an increase in the amount of rearward movement of the main beater. This paper proposes an automatic compost spreading device for a compost spreading vehicle.

Next, embodiments will be described in detail with reference to the drawings. It should be noted that the same reference numerals in the drawings as in the previous means are used for constituent members having the same effect.

Figure 2 is an overall schematic diagram of a compost spreading vehicle in which the main beater is mounted on the vehicle body so as to be movable back and forth. In the figure, A is the compost spreading vehicle, and a is mounted on the vehicle body f. The compost box 1 is a floor conveyor that is stretched over the floor of the compost box a so as to run back and forth continuously or intermittently, and its driving force is derived from the PTO shaft of the tractor T or from the wheels w. , a feed speed change adjusting device 3 is interposed therebetween. Further, 4 is the compost or manure loaded in the compost box a, 5 is a main beater that is slidable back and forth at the opening on the rear end side of the compost box a, and 6 is the compost transfer pressure that the main beater 5 receives. The sensing portion 9 is a spring that pushes the main beater 5 forward.

FIGS. 3, 4, and 5 show three different examples of the feed speed adjustment device 3 for the feed amount of the floor conveyor 1 used in the compost spreading vehicle A of the above embodiment.

In FIG. 3, 7 is a slide bearing that pivotally supports the main beater 5, 8 is a rod whose one end is connected to the slide bearing 7, and 9 is wound around the rod 8 to push the main beater 5 forward. The spring 81 that urges the spring 9 is a receiving plate at one end of the spring 9. Reference numeral 10 denotes a regulation plate, which is connected to the drive ratchet gear 11 of the floor conveyor 1.
The rod 8 is pivoted on a shaft 11a, and an outwardly projecting plate portion 10a is connected to the other end of the rod 8. Reference numeral 12 denotes a rotating arm, which is pivotally supported by the shaft 11a so that counterclockwise rotation is restricted by the regulation plate 10, and is normally biased by a spring in the counterclockwise direction. .
A cam roller 13 is pivotally supported at the tip of the rotating arm 12. Reference numeral 14 denotes a ratchet pawl, which is pivotally supported by the rotating arm 12 and configured to intermittently rotate the ratchet gear 11 clockwise by rotating the rotating arm 12 clockwise against the spring bias. It's summery. A cam 15 is provided on the side of the cam gear 16 so as to act on the cam roller 13 to swing the rotating arm 12. 17
is a pinion gear that drives the cam gear 16.

Next, to explain the operation of the feed speed adjustment device 3 of the first form shown in FIG. is in equilibrium with the biasing force of regulation plate 1.
0 does not act and is in the position indicated by the solid line, and the ratchet pawl 14 is in contact with the cam roller 13, and therefore the rotating arm 12.
The ratchet gear 11 is operated to the full stroke that can be oscillated, and the ratchet gear 11 is rotated in the maximum feed range, thereby increasing the feed speed of the floor conveyor 1.

Compost 4 is transferred to main beater 5 by floor conveyor 1
When the main beater 5 is transferred to the side and its transfer pressure F increases, the spring 9 is compressed and the slide bearing 7 is transferred to the rear side until both are balanced, so that the main beater 5
However, since the main beater 5 is rotating and constantly spreading the compost, it stops when the compost is evenly distributed. At this time, the regulation plate 10 rotates clockwise by the amount that the slide bearing 7 has moved backward (the dotted line position in Figure 3), and as a result, the impulse rolling stroke of the cam roller 13 due to the rotation of the cam 15, Therefore, the stroke of the rotation amplitude of the rotation arm 12 is reduced, and the rotation of the ratchet gear 11 by the ratchet pawl 14 is reduced.
This narrows the feeding range of the floor conveyor 1, thereby slowing down the movement of the floor conveyor 1.

Since the transfer pressure F varies depending on the type of compost and between compost and manure, the amount of spraying can be adjusted by changing the spring pressure of the spring 9.

Next, a second embodiment of the feed speed change adjusting device 3 shown in FIG. 4 will be explained.

In the same figure, 18 is a pendulum type bearing, 1
8a is a pendulum fulcrum. 19 is a rod whose one end is connected to the free end of the pendulum bearing 18;
A spring 9 is stretched between the other end of the rod 19 and the vehicle body f and urges the main beater 5 forward, and a spring 21 has an upper end connected to the rod 19 and has a fixed fulcrum 21a in the middle. It is a lever that has. 22 is a one-way clutch, and one end of a crank rod 23 is connected to the tip of a protruding arm 22a. A restrictor 23a that abuts the lower end 21b of the lever 21 is fixed in the middle of the crank rod 23, and the other end of the crank rod 23 is telescopically connected to a drive crank 24 via a crank rod 24a. There is.

The second embodiment of the feed speed change adjusting device 3 shown in FIG. 4 operates as follows.

At the beginning of the work, the transfer pressure F due to the compost 4 applied to the main beater 5 is small, so the spring 9
The rod 19 and lever 21 do not act and are in the position shown by the solid line, and the one-way clutch 22 is operated to the full stroke of the drive crank 24 via the crank rod 24a, Conveyor 1 is set to maximum feed speed.

When the compost 4 is applied to the main beater 5 and starts to be spread, the transfer pressure F gradually increases, and when it becomes unbalanced with the spring 9, the main beater 5
moves backward around the fulcrum 18a until it is balanced (position shown by the dotted line in Figure 4). At this time, rod 1
When the lever 21 connected to the lever 9 rotates clockwise, the crank lock 23 is rotated via the restrictor 23a.
In order to reduce the amount of movement of the floor conveyor 1, the movement speed of the floor conveyor 1 is slowed down. The main beater 5 is constantly rotating, and when the rotational resistance, that is, the transfer pressure F becomes small, the rod 19 and the lever 21 are restored to the solid line position (FIG. 4) due to the biasing force of the spring 9, and the floor conveyor 1 is rotated. Speed up shipping.

Next, a third embodiment of the feed speed adjustment device 3 shown in FIG. 5 will be explained.

In the figure, 25 is a regulator lever, the lower end of which is loosely fitted to an intermediate shaft 26 for continuously variable transmission.
The upper end is connected to one end of the rod 8, similar to the version shown in FIG. A speed change cam 27 is formed on one side of the shaft fitting portion 25a at the lower end of the regulator lever 25, and can abut against a fixed cam 28 provided at one end of the intermediate shaft 26 (the sixth
(see figure). Reference numeral 29 denotes a driven side variable speed pulley provided on the intermediate shaft 26, which is a split pulley as shown in FIG. A coil spring 30 is wound around a portion of the intermediate shaft 26 facing the other side and between them. A transmission belt 31 is wound between the speed change pulley 29 and a drive side speed change pulley 33 provided on the drive shaft 32. A coil spring 34 is wound around the drive shaft 32 between the movable pulley 33a and the stopper 32a (Fig. 6) to adjust the effective diameter of the speed change pulley 33. 35 is a bevel gear fixed to the intermediate shaft 26 (Fig. 6);
It meshes with a bevel gear 37 fixed to the worm shaft 36. A worm 38 meshes with a worm wheel 39 fixed to the sprocket shaft 1a of the floor conveyor 1.

The third embodiment of the feed speed change adjusting device 3 shown in FIGS. 5 and 6 operates as follows.

Similar to the first and second embodiments described above, at the beginning of the work, the transfer pressure F by the compost 4 applied to the main beater 5 is small, so it is in balance with the normal biasing force of the spring 9. The speed change pulley 33 on the driving side and the speed change pulley 29 on the driven side are rotated at a constant speed by the transmission belt 31 shown by the solid line in FIG. Because it is small, bevel gear 35,3
7. The floor conveyor 1 is running at maximum speed via the worm 38, worm wheel 39, etc.

Next, when the compost 4 is applied to the main beater 5 and its transfer pressure F increases, the spring 9 is compressed and the slide bearing 7 moves backward until both are evenly distributed, and therefore the main beater 5 also moves backward. transition,
It will stop in that balanced state. At this time, the rod 8 connected to the former slide bearing 7 is also pulled rearward, so that the regulator lever 25
rotates clockwise, and the lower end of the shaft fitting part 25a
moves in the axial direction by the action of the speed change cam 27, compresses the coil spring 30, and moves the driven side speed change pulley 29.
At the same time, the coil spring 34 is compressed to decrease the effective diameter of the drive-side speed change pulley 33 (dotted line in Figure 5). Therefore, both speed change pulleys 29, 33
The speed ratio of is reduced, and the rotation speed of the floor conveyor 1 is reduced.

Further, when the transfer pressure F becomes smaller, the restoring action of the spring 9 causes a speed change operation opposite to that described above to increase the rotation speed of the floor conveyor 1.

In this way, the feed amount of the floor conveyor 1 is determined by adjusting the feed stroke when the floor conveyor 1 is of the first and second type of intermittent feed type, and when the floor conveyor 1 is of the first and second type. In the third type of continuous feed, the feed rate is determined by adjusting the feed rate.

Next, FIG. 7 shows an automatic compost spreading device in a compost spreading vehicle according to the present invention, which is applied to the feed speed adjustment device 3 shown in FIG. 3. In the same figure, numeral 5 denotes a main beater that is slidably provided on the vehicle body f, and as shown in FIG.
A link mechanism 40 is connected to the slide bearing 7 of the slide bearing 7, and when the slide bearing 7 moves rearward (to the right in the figure), the connecting fulcrums A and B move upward as shown by the arrows in the figure. By connecting the other end of the shock absorber 41, one end of which is supported in series, to the connection fulcrum R of 40, the main beater 5 is able to maintain the transfer pressure F and the spring 9.
The shock absorber 41 is linked so as to expand and contract in opposition to the movement of sliding back and forth under spring pressure.

Therefore, when the main beater 5 is pushed rearward due to an increase in the transfer pressure F, the spring 9 is regulated by the damping force of the shock absorber 41.
It moves against the spring pressure of the shock absorber 41, and when it is pulled back forward by the spring pressure of the spring 9 due to a decrease in the transfer pressure F, it moves while being regulated by the damping force of the shock absorber 41.

As described above, the automatic compost spreading device in the compost spreading vehicle according to the present invention includes a main beater 5 installed at the rear end of the compost box a mounted on the vehicle body f.
The main beater 5
A shock absorber 41 that opposes the back and forth movement of the main beater 5 is connected to the main beater 5, and the main beater 5 is suspended so as to intermittently rotate back and forth on the floor surface of the compost box a. The main beater 5 is attached to the feed speed adjustment device 3 of the drive mechanism of the floor conveyor 1.
The main beater 5 is connected to the floor conveyor 1 so that the feed amount of the floor conveyor 1 is decreased in accordance with the increase in the amount of rearward movement of the main beater 5.
When the main beater 5 moves back and forth due to changes in the transfer pressure of the compost being conveyed, the shock absorber averages out the changes in the transfer pressure with its damping force, thereby increasing the movement of the main beater 5 that moves due to changes in the transfer pressure. The change in the amount of compost over time becomes flat as shown in FIG. The automatic control of the feed amount in step 1 is performed appropriately, and the amount of compost to be spread can be kept approximately constant.

[Brief explanation of the drawing]

Figure 1 is a side view of a conventional compost spreading vehicle in which the main beater is fixed in position and installed on the vehicle body.
The figure is an overall schematic side view of a compost spreading vehicle in which the main beater is mounted on the vehicle body so that it can move freely back and forth, and Figures 3, 4, and 5 are automatic spreading devices used in the same compost spreading vehicle. 6 is a plan view of the feed speed adjustment device shown in FIG. 5, and FIG. 7 is a side view of the automatic spraying device according to the present invention incorporated into the feed speed adjustment device shown in FIG. 8 is an explanatory diagram showing the relationship between the amount of movement of the slide bearing of the feed speed adjustment device and time in a compost spreading vehicle in which the main beater is provided on the vehicle body so as to be movable back and forth, and FIG. FIG. 3 is an explanatory diagram showing the relationship between the amount of movement of the slide bearing of the feed speed adjustment device and time in FIG. Explanation of drawing symbols, A...compost spreading vehicle, F...transfer pressure, T...tractor, a...compost box, f...vehicle body, w...wheels, 1...floor conveyor, 1a...sprocket shaft , 10...Regulation plate, 10a...Plate portion, 11...Ratchet gear, 11a...Ratchet gear shaft, 12...
Rotating arm, 13...cam roller, 14...ratchet pawl, 15...cam, 16...cam gear, 1
7... Pinion gear, 18... Pendulum type bearing, 18a... Pendulum fulcrum, 19... Rod, 2
... Lever, 21 ... Lever, 22 ... One-way clutch, 22a ... Projection arm, 23 ... Crank rod, 23a ... Regulator, 24 ... Drive crank, 24a ... Connection member, 25 ... Regulator Lever, 25a...Shaft fitting part, 26...Intermediate shaft, 27...Speed cam, 28...Fixed cam, 2
9... Driven side speed change pulley, 29a... Movable side pulley, 3... Feed speed change adjustment device, 30... Coil spring, 31... Transmission belt, 32... Drive shaft, 3
2a... Stopper, 33... Drive side speed change pulley, 33a... Movable side pulley, 34... Coil spring, 35... Bevel gear, 36... Worm, 3
7...Bevel gear, 38...Worm, 39...
Worm wheel, 4...compost or manure, 40
... Link, 41 ... Shock absorber, 5
... Main beater, 6 ... Sensing section, 7 ... Slide bearing, 8 ... Rod, 81 ... Reception plate,
9...Spring.

Claims (1)

[Claims] 1. The main beater 5 installed at the rear end of the compost box a mounted on the vehicle body f is supported so as to be slidable back and forth, and a spring 9 is connected to push the main beater 5 forward.
The main beater 5 is connected with a shock absorber 41 that opposes the back and forth movement of the main beater 5, so that the back and forth sliding movement of the main beater 5 is intermittently rotated back and forth on the floor surface of the compost box a. In the feed speed adjustment device 3 of the drive mechanism of the stretched floor conveyor 1,
An automatic compost spreading device in a compost spreading vehicle, which is connected to reduce the feed rate of the floor conveyor 1 in accordance with an increase in the rearward movement distance of the main beater 5.