JPH06896Y2 - Feeding device in fertilizer spreader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of a feeding device in a fertilizer spreader for spraying compost or granular fertilizer.

(Prior Art) In the case of a fertilizer spreader of the type in which a conveyor is arranged below the hopper, the bottom of the hopper is opened, and the conveyor provided on this opening has a wide endless belt that rotates back and forth. It was wrapped around to run.

(Problems to be solved by the invention) The fertilizer stored and accumulated in the hopper is transported from the fertilizer on the contact surface of the transport conveyor toward the delivery port, and the fertilizer above it is dropped into the cavity after transport. To do. Then, the fallen fertilizer is also conveyed by the conveyer conveyor, such an operation is continuously performed, and the upper ones are sequentially conveyed and fed out. However, when the conveyance action by the conveyor conveys due to the opening height of the delivery port, the layer that extends is to the upper layer, in other words, when the delivery amount is set to be larger than the delivery amount, (for the delivery allowable amount, Therefore, it is not necessary to consider it here because the reduction of the transport amount is a defect in the machine performance.) Fertilizers that are transported in the layer higher than the opening of the feeding port are pumped toward the feeding port side. Will be done. This pumped fertilizer is compacted like a nodule in the space between the wall surface above the feeding port on the front side of the hopper and the left and right wall surfaces, and is strongly adhered to these wall surfaces.
In such a state, a cavity is formed above the conveyor, and if the fertilizer above does not drop smoothly and the fertilizer spraying state varies, a so-called bridging phenomenon that does not drop at all occurs and the fertilizer spraying is interrupted.

As for the relationship between work efficiency and fertilizer transfer / feeding performance, the work efficiency can be increased by increasing the capacity of the hopper and reducing the opportunity to replenish the fertilizer. Since the fertilizer width is determined by the above, there is a limit to the increase of the hopper width, and it becomes necessary to lengthen the hopper length and the conveyor length. However, when the length of the conveyor is increased, the consumption horsepower increases and the fertilizer agglomeration or the bridge phenomenon occurs more frequently. On the other hand, if the hopper capacity is reduced, the length of the conveyer may be shortened, so that the horsepower consumption is small and the fertilizer is not agglomerated, which has the effect of preventing the bridge phenomenon. The decline of is inevitable.

(Means for Solving the Problem) The present invention provides a conveyance conveyor that winds a wide endless belt around a bottom opening of a rectangular hopper that forms a feeding port on the lower side of a front side wall so as to rotate back and forth. In the disposed fertilizer spreader, the transfer conveyor is divided into parts in the front-rear transfer direction, the transmission system paths to the transfer conveyors that can be divided are separated from each other, and when the front transfer conveyor is rotated, It is characterized in that the side transfer conveyor can be stopped.

(Function) A required amount of fertilizer is put into the inner cavity of the hopper. Then, in the fertilizer spraying work, fertilizer spraying is started at the same time as the machine progresses, but not the dividing conveyors are rotated at the same time, only the front conveyors located on the delivery side are rotated. . By the traveling of the transport conveyor, the fertilizer on the front conveyor among the fertilizers in the hopper is sequentially delivered from the lower side toward the delivery port. The fertilizer reaching the end of the transport on the front transport conveyor drops downward from the feeding port and is scattered on the field. Then, when the transport and feeding by the front transport conveyor progresses, and the fertilizer above the transport conveyor is almost exhausted, next, the front transport conveyor is set in the rotating state and the rear transport conveyor is also rotated. Manipulate. By the start of the rounding of the rear side conveyor, the fertilizer on this conveyor is conveyed toward the front side of the front side conveyor. Fertilizer is delivered at the inheritance part of the conveyor before and after it can be run together, and the fertilizer on the front conveyor is delivered toward the delivery port in the same manner as described above and sprayed on the field.

Then, the spraying work is continued until the fertilizer on the rear side conveyor is exhausted, and the fertilizer is replenished in the hopper again to repeat the work.

(Example) A is a self-propelled fertilizer spreader for implementing the present invention, and 1 is a frame of the spreader A. A rubber crawler type traveling device 2 is mounted on the lower portion of the frame 1, and a fertilizer spraying device a is mounted on the upper portion thereof.

3 is a hopper for storing the fertilizer of the fertilizer spraying device a,
The hopper 3 is in the form of a rectangular box frame that can open both upper and lower surfaces. The lower part of the front wall of the hopper 3 is opened relatively large to form a feeding port 3a. Below the hopper 3, a transfer conveyor 4 is stretched substantially horizontally so that the transfer direction thereof runs in the front-rear direction toward the delivery port 3a.

In the present invention, the transfer conveyor 4 is divided into front and rear parts to be composed of a plurality of conveyors 4a and 4b. The width of each of the conveyors 4a and 4b which can be divided is set such that an endless rubber belt with a protrusion having a width slightly wider than the width of the lower portion of the hopper 3 is wound around a driving roller and a floating roller so as to rotate. Then, the front end of the transport conveyor 4a and the rear end of the rear transport conveyor 4b are arranged so as to have a minimum separation distance. In front of the transfer end of the transfer conveyor 4a, there is some gap above the transfer end 3a of the hopper 3.
The feeding roll 5 is horizontally installed so as to close the central part of the.
The feeding roll 5 has a large number of protrusions 5a, 5b on the circumferential surface of the cylindrical body.
... is planted, and its width is made to substantially correspond to the width of the feeding port 3a. Next, a power transmission system path to each operating portion of the fertilizer spraying device a will be described. Reference numeral 6 denotes an engine mounted on the rear portion of the frame 1. The output rotation of the engine 6 is transmitted by being wound around a power transmission shaft 8 to the fertilizer spraying device a via an intermediate shaft 7. The rotational power of the power transmission shaft 8 separates the transmission paths from the front and rear conveyors 4a and 4b. That is, the power transmission shaft 8 and the drive shaft 4a1 of the front conveyor 4a are wound and transmitted, and the power transmission shaft 8 and the drive shaft 4b1 of the rear conveyor 4b are separately wound and transmitted. To do. Then, a tension clutch device 9 is provided in the winding transmission section between the latter power transmission shaft 8 and the drive shaft 4b1 of the rear side conveyor 4b. When the tension clutch device 9 is turned on and off, the rear conveyor 4b1 is rotated and stopped when the front conveyor 4a is rotated.

On the other hand, a transmission shaft 10 is provided in a winding transmission portion between the power transmission shaft 8 and the drive shaft 4a1 of the front-side conveyor 4a, and the transmission shaft 10 is adapted to be wound and transmitted to the delivery roll 5. . The feeding roll 5 is rotated in a counterclockwise direction in FIG. Reference numeral 11 denotes a tension interrupting device that interrupts the winding transmission between the intermediate shaft 7 and the power transmission shaft 8. When the tension interrupting device 11 is disconnected and operated to stop each operating portion of the fertilizer spraying device a. To use. Again 1
Reference numeral 2 denotes a shutter which is slid up and down to adjust the opening degree of the delivery port 3a. The feeding roll 5 plays a role of reversing the upper layer of the fertilizer conveyed by the front side conveyor 4a to dissolve the fertilizer, and 13 is a guide for discharging the decomposed fertilizer downward. . Reference numeral 14 is a cover that covers the entire circumference of the machine body.

(Effect of the Invention) In the present invention, the transport conveyor is divided into a plurality of front and rear parts with respect to a single hopper, and the rear transport conveyor can be stopped when the front transport conveyor rotates. It is not necessary to rotate the transport conveyors that can be split at the same time, only the transport conveyor on the front side is rotated according to the storage state of the fertilizer in the hopper, and the fertilizer on the upper part is fed first, and then the transport conveyor on the rear side. The fertilizer on the rear side of the hopper can be fed out by rotating also, and the horsepower consumption is small, and the total amount of fertilizer accumulated in the hopper by the rotating conveyor belt can be reduced. , The state in which the fertilizer is compacted is alleviated and the fertilizer is less likely to be agglomerated, which has the effect of preventing the bridge phenomenon.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a side sectional view of a self-propelled fertilizer sprayer, and Fig. 2 is a side sectional view of the same main part showing a state of feeding the fertilizer. Description of main symbols in the drawings 3 ... Hopper, 3a ... Feeding port, 4a ... Front conveyor, 4b ... Rear conveyor,

Claims (1)

[Scope of utility model registration request] 1. A fertilizer spreader in which a conveying conveyor for winding a wide endless belt to wind forward and backward is arranged in a bottom opening of a rectangular hopper having a feeding port formed below a front side wall surface. The transport conveyor is configured to be divided in the front and rear transport directions, the transmission system paths to the transport conveyors to be split can be separated from each other, and the rear transport conveyor can be stopped when the front transport conveyor is running. A feeding device in a fertilizer spreader, characterized in that