JPH0510581Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an unloading and quantitative device for a grass transport vehicle that transports grass, compost, etc.

[Prior Art] As shown in FIG. 1, as a conventional grass transport vehicle W of this type for transporting grass, compost, etc., a grass box 3 is mounted on a vehicle body 2 that runs on running wheels 1. The pasture box 3 is equipped with a floor conveyor 5 on its floor for transporting the loaded material 4 such as pasture grass, etc., and the rear end side of the floor conveyor 5 is equipped with a floor conveyor 5 for conveying the loaded material 4 such as pasture. Some models are equipped with an elevator device 6 that releases the fuel to the rear.

[Problem to be solved by the invention] In the above-mentioned conventional grass transport vehicle W, the elevator device 6 lifts the loads 4 that are successively conveyed on the floor conveyor 5 as they are, regardless of the amount. Since the amount of grass, etc. released from the elevator device 6 varies, whether it is large or small, and the work after processing the released grass, etc. requires equalization, There is a problem that leveling work is hard work.

For example, as shown in Figure 2, when grass is blown up into a tall silo 7 like a tower silo using a blower 8, the grass is transported by air, so if the amount of grass fluctuates greatly, the In some cases, the pipe 9 becomes clogged with grass.

Currently, in order to prevent this clogging, one or two workers are assigned near the blower conveyor to level the grass that is unloaded onto the blower conveyor 10, and the amount of grass that is unloaded is controlled. The fluctuations are adjusted manually.

In other words, when the amount of grass to be unloaded is large,
The grass is quickly taken out from the blower conveyor 10, and on the other hand, when the amount of unloaded grass is small, the taken out grass is returned to the blower conveyor 10 for leveling adjustment.

However, as mentioned above, this leveling work is hard labor and involves danger.

[Purpose of the invention] The present invention was made in order to solve the problems of the conventional technology as described above. A new method of unloading in a new grass transport vehicle that maintains a constant unloading amount by supporting the support so that it can be displaced by pressing force, and controlling the feed speed of the floor conveyor by operating the displacement of the beater. The purpose is to provide equipment.

[Means for Solving the Problems] The present invention was completed based on findings obtained through various studies in order to achieve this purpose. That is, a beater, which has a shape similar to the beater of a conventionally known mania spreader and rotates on a horizontal axis, is installed on the floor in front of the elevator device 6 provided at the rear end of the conventional grass transport vehicle W (FIG. 1). The floor conveyor 5 is arranged at a height position corresponding to the upper layer of the loaded object 4 that is being transported later by the conveyor 5, and is driven and rotated in a direction in which the lower peripheral surface side faces forward.
The load 4 is supported so as to be displaced by the pressure of the loaded object 4 being rearwardly conveyed by the beater, and the feed speed of the floor conveyor 5 is automatically controlled by the operation of the displacement movement of the beater. When the amount of loaded material such as grass fed to the elevator device 6 is large and the amount of movement of the beater moved by the loaded material 4 becomes large,
The feed rate of the floor conveyor decreases, which acts to equalize the amount of loaded material supplied to the elevator device 6, and thereafter, the loading of grass, etc., which is lifted by the elevator device 6 and released to the rear. This is based on the result that the amount of cargo such as grass unloaded from a grass transport vehicle can be quantified.

Therefore, in the present invention, as a means to achieve the above-mentioned object, a grass box is mounted on a car body that runs on running wheels, and inside the grass box, a loaded object is placed along the floor surface of the car. A pasture grass transport vehicle is equipped with a floor conveyor for transporting pasture grass, and an elevator device is installed on the rear end side of the floor conveyor for discharging the loaded materials such as grass to the rear upper part. Above the rear end of the floor conveyor at the front of the device, at a height corresponding to the upper layer of the loaded material being transported, there is provided a beater that is driven and rotated by a horizontal shaft in a direction in which the lower peripheral surface side faces forward. The beater is arranged so that it is supported so as to be displaced according to the transfer amount of the loaded object by the pressing force of the loaded object that is later conveyed by the floor conveyor, and the movement of the displacement of the beater is controlled by the feed speed of the floor conveyor. The present invention proposes an unloading and metering device for a grass transport vehicle, which is connected to the control means so as to reduce the feed speed of the floor conveyor by increasing the travel distance of the beater.

[Example] Next, an example will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the conventional means are used for constituent members having the same effect.

Fig. 3 is a longitudinal side view of the pasture transport vehicle W in which the present invention can be implemented, in a state in which unloading work is being carried out. , 4 indicates the grass, compost, etc. loaded in the grass box 3, 5 indicates a floor conveyor, 6 indicates an elevator device, and A indicates an unloading and quantitative device.

This pasture transport vehicle W is similar to the conventional one shown in FIG. A floor conveyor 5 is installed to transport the cargo later, and an elevator device 6 is installed on the rear end side of the floor conveyor 5 to lift the loaded material 4 that is being transported later and discharge it to the rear. .

Then, in the unloading/quantification device A, there is placed a horizontal position above the rear end of the floor conveyor 5 in front of the elevator device 6 at a height corresponding to the upper part of the loaded material 4 being sent later. A beater 12 that rotates on a shaft 11 is disposed, and is configured such that its lower circumferential surface side is driven to rotate in a rotation direction 13 facing forward.

The horizontal shaft 12 of the beater 12 is supported so as to be displaced in the front-rear direction or the vertical direction, which is the conveyance direction of the floor conveyor 5 mentioned above.

That is, when the amount of the loaded material 4 such as pasture grass being conveyed later by the floor conveyor 5 increases, the horizontal axis 11 of this beater 12 is displaced backward or upward by the loaded material 4 such as grass etc. When the amount of grass that is moved and then transported becomes less, the beater 12 returns to its original position due to its own weight,
By repeating this operation, the displacement will move, but in order to compensate for the return due to its own weight, the restoring spring 14
are often provided in conjunction with each other (see Figures 4 to 8).
figure).

Figures 4 and 5 show pendulum type sensing beaters.

In FIG. 4, the horizontal shaft 11 of the beater 12 is supported on the tip of a pendulum plate 15 that swings back and forth around a fulcrum shaft 15a, and the tip, which is the rotating end of the pendulum plate 15, moves forward with a spring 14. and the beater 1
2 is configured to swing substantially back and forth according to a swing angle θ in the front and back direction.

Therefore, when the load 4 such as pasture that is being conveyed later by the floor conveyor 5 comes into contact with the beater 12 and is pressed, the pendulum plate 15 is centered on the fulcrum shaft 15a.
swings and rotates rearward, displacing and moving the beater 12 rearward. The amount of movement of the beater 12 at this time varies as the swing angle θ of the pendulum plate 15 changes depending on the magnitude of the pressing force pushing out the beater 12 by the load 4 such as grass.

Then, by utilizing the variation in the amount of movement of the beater 12, the feed speeds of the various floor conveyors 5 are automatically controlled.

FIG. 9 shows a main part of an example of an automatic control device in a quantification device that quantifies the feed amount of the floor conveyor 5 by linking the movement operation of the beater 12 back and forth with the feed operation of the floor conveyor 5. FIG. In the figure, 12 is a beater that rotates in a rotational direction 13 around a horizontal axis 11, and 15 is a fulcrum shaft 1.
5a is a pendulum plate that swings around the center, 14 is a pendulum plate 1
5 is a spring that urges it forward; 16 is a wire whose one end is connected to the pendulum plate 15; 17 is the wire 1;
Outer wire that slidably guides 6, 1
9 is the drive shaft of the floor conveyor 5, 21 is its drive shaft 1
A ratchet wheel 9 is attached to the ratchet wheel 9, a ratchet arm 25 pivots on a ratchet pawl 20 that meshes with the ratchet gear 21, and reciprocates back and forth around the drive shaft 19; A crank arm 24 is a crank rod that connects the crank arm 23 and the above-mentioned ratchet arm 25, and 18 is a crank arm that moves the starting position of the ratchet arm 25 when the ratchet arm 25 is reciprocated by the reciprocating operation of the crank rod 24. 25 shows a feed speed control means for changing and controlling the feed speed of the intermittent rotation of the ratchet gear 21 by expanding or contracting the reciprocating range of the ratchet gear 25. The other end of the wire 16 described above is connected to this feed rate control means 18.

In FIG. 9, there is a large amount of grass etc. that is transported by the floor conveyor 5, which causes the beater 12 to
When the pressing force that presses the pendulum plate 1 exceeds the bias of the spring 14, the beater 12 is pushed backwards and the pendulum plate 1
5 rotates rearward about the fulcrum shaft 15a as shown by the chain line in the figure.

At this time, the wire 16 attached to the pendulum plate 15
is pulled, passes through the outer wire 17, and rotates the feed rate control plate 18 clockwise around the floor conveyor drive shaft 19.

When the feed speed control plate 18 rotates in the above direction, the cam mechanism on its shaft pushes up the ratchet 20, and the ratchet gear 21 moves the ratchet 20 to its meshing start position with respect to the ratchet gear 21.
Displace it in the direction of rotation.

Therefore, the range of reciprocating movement of the ratchet pawl 20 becomes narrower, the rotation angle of the intermittent operation of the ratchet gear 21 decreases, and therefore the feed amount of the floor conveyor 5 decreases, and its feed speed decreases. .

In this way, when the feeding speed of the floor conveyor 5 decreases, the moving speed of grass etc. decreases, and thus,
The amount of pasture supplied to the elevator device 6 by the beater 12 is reduced. As a result, the pressing force of the grass pushing the beater 12 also decreases.
When the amount of grass 4 pushing the beater 12 decreases,
The beater 12 returns to its original position.

When the beater 12 returns to its original position, a control action opposite to that described above operates to increase the speed of the floor conveyor 5. Automatic control is performed by repeating this forward and reverse action, thereby quantifying the unloading of grass.

Note that for automatic control of the feed rate of the floor conveyor 5, other control mechanisms that provide similar effects can be selected at any time.

In FIG. 5, a pendulum plate 15 on which the horizontal shaft 11 of the beater 12 is supported is supported so as to protrude backward and downward from a fulcrum shaft 15a, and the tip of the pendulum plate 15 is connected to a spring 14 that pulls it downward. As a result, the beater 12 swings substantially up and down according to the swing angle θ in the vertical direction. Then, the change in the amount of vertical movement of the beater 12 is used to automatically control the speed of the floor conveyor 5 as described above.

Figures 6-8 show a sliding sensing beater.

In FIG. 6, the horizontal shaft 11 of the beater 12 is pivotally supported by a bearing frame 26 provided so as to be slidable back and forth, and a spring 14 for pulling forward is connected to the bearing frame 26.

Therefore, when the amount of loaded material 4 such as grass being transported by the floor conveyor 5 increases and the beater 12 is pushed by the loaded material 4, the bearing frame 26 resists the bias of the spring 14. Slide backward to displace the beater 12 backward.

By utilizing the change in the amount of movement of the beater 12 at this time, the speeds of the various floor conveyors 5 can be automatically controlled as described above.

In this case, when the feed speed of the floor conveyor 5 becomes slow and the moving speed of the grass etc. to the rear elevator device 6 becomes slow, the force that presses the beater 12 backward becomes weaker, and the urging force of the spring 14 causes the bearing frame 2 slides forward and the beater 12 returns to the front.

This automatic control makes it possible to further improve the quantitative nature of unloading than in the case of the pendulum-type sensing beater described above.

In FIG. 7, the moving direction of the beater 12 is diagonally rearward and upward, thereby giving the beater 12 a return effect due to its own weight.

In FIG. 8, the moving direction of the beater 12 is made vertical, further enhancing the return effect of the beater 12 due to its own weight.

[Effect of the invention] As described above, in the present invention, the amount of the loaded material 4 that is transported later by the floor conveyor 5 increases, and therefore, the amount of the loaded material 4 that is transported later by the floor conveyor 5 increases, and therefore the amount of the loaded material 4 is As the supply amount increases, the beater 12 disposed at the front of the elevator device 6 will be displaced greatly due to the pressing force of the loaded material 4 being sent later, and the operation of this displacement movement will be Then, the feed speed control means 18 that controls the feed speed of the floor conveyor 5 is operated in conjunction with the feed rate control means 18 to reduce the transfer speed of the loaded object 4 by the floor conveyor 5, thereby reducing the speed of the loaded object 4 to the elevator device 6.
The feed rate of the beater 12 is automatically reduced, and the moving amount of the beater 12 is changed in accordance with fluctuations in the amount of loaded material 4 transferred by the floor conveyor 5, and the feed speed of the floor conveyor 5 is automatically controlled. become. Therefore, the discharge amount per hour of the loaded material 4 that is transported later by the floor conveyor 5 and discharged by the elevator device 6 is made constant, and the loaded material 4 such as grass released by the elevator device 6 is evenly distributed. The work of leveling is no longer necessary, and the heavy labor required for this leveling work is relieved.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional side view of the main parts of a conventional grass transport vehicle during unloading work, and Figure 2 is the above grass transport vehicle performing unloading work to pack grass into a tower silo. Fig. 3 is a longitudinal cross-sectional side view of the unloading/quantification device part of the pasture transport vehicle of the present invention, and Figs.
The figures are side views of a pendulum-type sensing beater of the embodiment of the same unloading and quantitative device, of which Figure 4 is a side view of the beater part that swings back and forth, and Figure 5 is a side view of the beater part that swings up and down. FIGS. 6 to 8 are side views of a sliding type sensing beater of the embodiment of the unloading and quantitative device, in which FIG. 6 shows a beater portion that slides in the front-rear direction. Figure 7 is a side view of the beater part that slides diagonally, Figure 8 is a side view of the beater part that slides vertically, and Figure 9 shows the amount of movement of the beater as a function of the rotational speed of the floor conveyor. FIG. 2 is a schematic diagram of an automatic control mechanism used to control the system. Explanation of drawing symbols, A... Unloading quantitative device, W...
... Grass transport vehicle, θ ... Swing angle, 1 ... Running wheel,
10...Blower conveyor, 11...Horizontal axis, 12...
...beater, 13...rotation direction, 14...spring,
15... Pendulum plate, 15a... Fulcrum shaft, 16... Wire, 17... Outer wire, 18... Feeding speed control means, 19... Floor conveyor drive shaft, 2
...Vehicle body, 20...Ratchet, 21...Ratchet gear 2, 2...Crankshaft, 23...
Crank arm, 24... Crank rod, 25
... Ratchet arm, 26 ... Bearing frame, 3 ...
Grass box, 4... Load (grass), 5... Floor conveyor, 6... Elevator device, 7... Tower silo, 8... Blower, 9... Conveying pipe.

Claims (1)

[Scope of utility model claims] A grass box 3 is mounted on a car body 2 that runs on running wheels 1, and a floor conveyor 5 is installed inside the grass box 3 to transport the loaded material along the floor surface of the grass box 3. In a pasture transport vehicle, which is equipped with an elevator device 6 on the rear end side for discharging loaded materials 4 such as pastures to the rear upper part, the rear end portion of the floor conveyor 5 in front of the elevator device 6 Above the floor conveyor, a Peter 12 which is driven and rotated by a horizontal shaft 11 in a direction in which the lower peripheral surface side faces forward is arranged at a height position corresponding to the upper layer of the loaded material 4 that is being transported later. The feed speed control means 18 of the floor conveyor 5 controls the movement of the displacement of the Peter 12 by the pressing force of the loaded object 4 being rearwardly conveyed by the conveyor 5 according to the amount of transferred object 4. and an unloading and metering device for a pasture transport vehicle, which is connected to reduce the feed speed of the floor conveyor 5 by increasing the amount of movement of the peter 12.