JPH0144005Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to an automatic spray amount adjustment device for a manure spreader that can always make uniform the amount of sprayed material spread by the beater part of the manure spreader. .

(b) Conventional technology Conventionally, a manual conveyance device that sends the material accumulated on the loading platform to a beater section and a beater section that spreads and spreads the materials are each equipped with a speed change mechanism, but these are not mutually effective. It does not perform a linked function. For example, Utsukai Showa 54-53036
As seen in the above publication, when the amount of hay conveyed becomes excessive, the feed speed of the conveyor conveying the hay is reduced or stopped to reduce the load on the next process.

(c) Problems to be solved by the invention However, when spraying material is to be spread using a manual spreader, it is first loaded onto the loading platform using a front loader or small wheel loader mounted on a tractor. In order to lengthen the time required for each spraying operation, spraying was started by loading the powder in a mountain shape that was higher than the height of the side plate of the loading platform.

For this reason, simply slowing down the feed speed of the conveyor when the amount of conveyance becomes excessive cannot prevent the bulky parts stacked in a mountain shape from being conveyed all at once to the beater section, so the speed decreases. Even if it was possible to reduce the load caused by the spraying, the problem remained that it was not possible to eliminate the unevenness of spraying caused by the sudden rush of spraying materials.

Therefore, the present invention has been improved so that the sensor that automatically adjusts the conveyor movement speed of the manure conveyance section also has the function of evenly feeding the material to be spread to the beater section, thereby reducing overload without complicating the structure. This allows for uniform spraying.

(d) Means for solving the problem In other words, the automatic spray amount adjustment device of the present invention separates from the rotation locus of the beater blades in the front upper part of the beater section and is biased toward the starting end of the manure conveying section rather than the terminal end. In the manual spreader, a sensor is disposed at a position where the sensor is displaced by contact with the material to be sprayed, and the sensor and the conveyor speed change mechanism are linked so that the conveyor moving speed is slowed down depending on the amount of displacement of the sensor with respect to the reference position. The manure transport section is characterized in that it is formed with a member positioned across between the side plates of the loading platform disposed at the bottom.

(E) Effect Now, when a pile of materials is sent by the conveyor and comes into contact with the sensor, the sensor swings backward from its reference position.

When the sensor swings backwards, the conveyor speed change mechanism automatically slows down the conveyor moving speed based on the amount of sensor displacement to prevent overload on the beater (engine, etc.) or the rear load of the traveling vehicle. You can prevent this and work more efficiently.

(f) Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

First, the structure of a general self-propelled manual spreader will be explained.

The front part of the chassis 1 is partitioned into a steering part 2, the rear part is a loading platform part 3, and the lower part of the chassis 1 is a traveling part 4.

The control section 2 is equipped with an engine 5 and a seat 6 facing the normal direction of travel, and is also provided with various operating levers.

The loading platform section 3 includes a floor 7, a manure conveying section 8 installed on the floor 7, a beater section 9 provided behind the manure conveying section 8, and the like.

The floor 7 is a place where the material to be spread 10 is loaded, the manure transport section 8 is a device for sending the material to be spread to the beater section 9 at the rear, and the beater section 9 is a device for spreading and spreading the material to be spread using a rotating beater shaft 11. be.

The running section 4 is usually made up of a plurality of wheels 13, 13 tracked by a crawler 12, and supports and runs the aircraft body.

Note that the power from the engine 5 is transmitted to these parts so that they can be turned on or off.

Furthermore, if the manure conveyance part 8 and the beater part 9 are explained in detail, the manure conveyance part 8 is connected to the floor 7.
Two chains 14, 14 are stretched on both sides by two chain foils 15, 15 at the front and back, respectively, and a transfer body 16 is installed between the chains 14, 14.
...are strung together at appropriate intervals to form a conveyor.

Power from the engine 5 is transmitted to the rear transmission 18 etc. by a drive shaft 17 extending rearward through the underside of the chassis 1.
Inside, the power is transmitted to the conveyor shaft 20 via a continuously variable transmission mechanism 19 using a V-belt or the like, while the power, which has been appropriately changed in speed within the rear transmission 18, is also transmitted to the beater shaft 11.

Note that these operations are performed using respective operating levers provided near the seat 6.

Next, in the front upper part of the beater section 9, it moves away from the rotation trajectory K of the beater blade B, and the manure conveyance section 8
A wide sensing part 23 (usually spanned across the side plate of the loading platform 3) is formed below and continuous with the arm 24 at a position that is biased towards the starting end of the conveyor from the terminal end.

In addition, the arm 24 is always urged forward by a spring 25 or the like, but the arm 24 is pushed forward by a suitable regulating body 26.
This prevents it from rotating forward of the center.

On the other hand, this sensor 21 and the continuously variable transmission mechanism 19 of the conveyor are interlocked and connected. That is, in the case of a continuously variable transmission mechanism 19 using a V-belt, for example, it is linked to an arm 29 that supports a speed change pulley through a suitable wire 27 or the like.

Next, the usage condition when spraying the spray material 10 will be explained.

First, the material 10 to be distributed is loaded onto the loading platform 3 using a front loader or the like.
Load it into the field and enter the field from the edge of the field (headland).
A distance of about 6 meters from the aircraft side is maintained, and the aircraft is gradually started (spreading) by turning the traveling clutch ``on'', the manure transfer section ``on'', and the beater section ``on'' to move the aircraft forward. However, when the spraying material 10 at this time reaches a height such that it touches the sensor 21, the sensor 21 swings backward, and at that time, the sensor 21 and the stepless Arm 29 of transmission mechanism 19
The roller 28 that is in contact with the V-belt at its tip moves toward the slack side of the V-belt, and the material 1 to be spread onto the beater section 9 is
The moving speed of the conveyor that conveys 0 is operated to become slower. Further, when the amount of displacement of the sensor 21 is small (the amount of the spread material contacting the sensor is small), the degree of contact between the roller 28 and the V-belt changes, causing the moving speed of the conveyor to change relative to the reference position of the sensor 21. The speed changes steplessly depending on the amount.

(g) Effects of the invention Since the present invention is configured as explained above, it produces the effects described below.

A sensor 21 is provided in the front upper part of the beater section 9, away from the rotation trajectory K of the beater blade B, and at a position biased towards the starting end side of the manure conveying section 8 rather than the terminal end section, and is disposed in contact with the material to be spread 10 and displaced. In the manure spreader in which the sensor 21 and the conveyor speed change mechanism are interlocked, the sensor is formed with a member 23 positioned across between side plates of a loading platform with a manure conveyance section disposed at the bottom. Since the apparatus is configured to automatically adjust the amount of spread in a manual spreader, when the pile of spread material 10 is conveyed at a certain speed and comes into contact with the sensor 21, the conveyor moving speed is changed by the conveyor speed change mechanism. This prevents the spread material from being suddenly conveyed to the beater section 9 due to the operation of the
In addition to preventing this, the material to be dispersed from the beater blade B is always spread evenly (the rotation of the beater blade does not change in any way), and there is no need for post-work as with conventional systems, making it a highly efficient system. Management work is possible.

In addition, if the pile of scattered material becomes smaller or disappears, the swing angle of the sensor 21 (with respect to the reference position) becomes smaller or returns to the reference position, so even in this case, the amount of scattered material does not change.

Then, a large amount of material 10 is sprinkled on the beater section 9 at once.
This prevents the rear part of the vehicle from becoming a trailing load (even if a large amount of sprayed material is transported to the beater section, which is a heavy object, it will come into contact with the sensor). Although the speed of the conveyor is slowing down, the rotation of the beater blades remains unchanged, so the spread of the material is always constant, and the top of the pile of material is located across the space between the side plates of the loading platform. fastened by a member that
Since the lower part of the material is supplied to the beater section in a fixed layer, compared to the conventional method where the entire pile is supplied to the beater section at once), the material to be spread 1
Since the conveyor speed is adjusted to keep the amount of spraying constant regardless of whether Since it is automatic, it does not impose any burden on the operator.

In addition, in the case of a device that spreads a material 10 such as compost rather than a device that adjusts the beater rotation speed,
Varying the feeding amount will improve the spreading condition.

Furthermore, since the spray amount is constant, the peak horsepower consumption does not increase and overloading of the engine 5 can be prevented, which is advantageous in terms of the service life of the entire aircraft.

[Brief explanation of the drawing]

The diagram shows an example of the present invention, and is the first example.
The figure is an overall side view of the manual spreader with a part cut away, FIG. 2 is an overall plan view, and FIG. 3 is an explanatory view of the operation of the sensor and transmission mechanism. 3... Loading platform, 8... Manure conveyance section, 9... Beater section, 10... Sprinkling material, 21... Sensor, 2
3... Member, B... Beater blade, K... Rotation locus.

Claims (1)

[Scope of utility model registration request] A sensor 21 is provided in the upper front of the beater section 9 at a position away from the rotation locus K of the beater blades B and biased toward the starting end from the terminal end of the manure conveying section 8, and is displaced by contacting the material to be spread 10. In a manure spreader, the sensor 21 and a conveyor speed change mechanism are linked so that the conveyor moving speed is slowed down depending on the amount of displacement with respect to the reference position of the sensor 21. 1. An automatic spray amount adjustment device for a manure spreader, characterized in that it is formed by a member 23 positioned across from the side plates of the manure sprayer.