JPS5810752Y2 - Powder spreader - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a spreader for spreading powder and granular materials such as lime, cement, gypsum, and fine aggregate.

Specifically, it is a powder spreader for improving soil quality by mixing the powder and granules with soil to improve various engineering properties of the soil and use it as a stable soil.

Conventionally, such powder spreading was generally performed manually.

For example, lime is applied to a land with a construction area of 20,000 m2 to a depth of 1
Spraying powder over a distance of 1,500 meters often requires about 1,500 tons, so during the work, 37,000 powder bags must be opened and then sprayed, which accounts for a large amount of labor costs.

Furthermore, during construction, not only did a temporary storage space for the powder and granular material be required, but also an unnecessarily small amount of transportation was required, and furthermore, it was extremely difficult to uniformly spread the powder over a predetermined surface.

In view of the above-mentioned circumstances, the present invention proposes a portable spreader that can uniformly and automatically spread powder and granules and has a high level of construction ability.

The gist of the present invention is a bin with a hopper that is placed on the frame of a four-wheeled vehicle body having a connecting rod at the front and contains powder and granules, and has a rotor shaft consisting of two shafts at the bottom of the hopper. A rear wheel supported at the center, with blades arranged side by side on the shaft to form a rotor, an exhaust port and an exhaust gate provided below the rotor, and a rear wheel loosely inserted into the rear wheel shaft;
A powder spreader includes a drive device that rotates a rotor shaft in cooperation with the wheels.

The structure of the present invention will be explained with reference to an embodiment shown in the accompanying drawings. FIG. 1 shows a side view of a wheeled powder spreader;
It is placed on a vehicle body frame 1 supported by four wheels 2, 2 and 3, 3, and includes a hopper 7, an inlet 8 on the upper wall of the hopper 7, and a dust collector such as a bag filter 9 on the top. A bin 6 including a vibrator 10 is fixedly installed on the inclined surface of the hopper 7.

Although the hopper 7 is shown to be inclined on both sides in FIG. 1, it can also be formed to be inclined on one side, and in that case, the vibrator 10 to be attached to the inclined surface is also necessarily provided on only one side.

The powder and granular material fed into the feed port 8 is generally fed by pressure feeding means such as air conveyance.

The bag filter 9 expands as shown in the figure by the air discharged only when the powder is being pumped, and when the pumping is stopped, the bag filter 9 is folded flat.

As shown in FIG. 2, the bin 6 has a cubic casing elongated in the direction of the wheels 3, 3, and extends downward as shown in FIG. 1 to form a hopper 7. An exit 23 is drilled.

A chute 22 is vertically installed at the discharge port 23 shown in FIG.

The two rotor shafts 12 and 12' having a length of up to 13° and 13' are inserted into the bottom of the hopper 7 and fixed in the center in the bottom of the hopper 7 in FIG. A rotor with blades 11, 11' subdivided in the direction is removably connected.

Alternatively, as shown in FIG. 3, the blades 11 may be brought into contact with the shaft 12 one by one and then secured with screws.

In this case, there is the convenience of being able to partially replace the blades.

Although not shown in the drawings, it is effective to attach a pointed cover to the pillow block 13, 13' to prevent the adhesion of powder particles.

In FIG. 1, a wheel 19 is located outside the chute 22,
A drive mechanism consisting of a pinion 20 and a rack 21 is combined with a slide gate 18 that opens and closes the opening of the chute 22, and the slide gate 18 is slidably operated.

The rotation of the sprocket (sprocket) 15.15' attached to the rear wheel 3 side is transmitted to the rotor side sprocket 16.16' by the chain wheels 17, 17', and the rotation of the sprocket 15.15' is transmitted to the rotor side sprocket 16.16' as shown in FIG.
By operating the clutches 14 and 14' installed at the rotors 2 and 12', the rotors 11 and 11' can be freely operated and stopped.

The rear wheels 3, 3 are integrally connected by wheels, but since both the side wheels are loosely inserted into the axle, the side wheels can rotate independently.

A drive shaft is integrally fixed to the wheel and protrudes from the wheel.

On the other hand, the front wheels 2, 2 are attached by link joints 5, 5 so that they can rotate freely.

Further, a connecting rod 4 is bendably protruded in front of the axle of the front wheels 2, 2, so that it can be towed manually or by a trailer or the like.

Since the present invention is constructed as described above, when handling it, first operate the vibrator 10 installed in the bottle 6, and check the discharge status of the powder and the amount of powder remaining in the bottle. .

Prior to construction, powder and granules have already been supplied from the powder and granule inlet 8 of the bin 6 using a tank truck or the like.

The spreader of the present invention is pulled by a tank truck (not shown) to control the rotation of the rear wheel 3 and the sprocket 1.
5 to the sprocket 16 via the chino 17 to rotate the coaxial rotor 11.

The powder in the hopper 7 is discharged to the discharge port 2 as the rotor 11 rotates.
3, it is more effectively led out to the chute 22 and sprayed on the ground.

At this time, the opening degree of the slide gate 18 is adjusted with respect to the opening of the chute 22, and the powder and granular material discharged is led out through the chute 22 in proportion to the opening degree.

The rotor shafts 12 and 12' are divided into two shafts approximately at the center of the bin 6, supported by pillow blocks 13 and 13', and driven separately, so that even when the vehicle curves, a large amount of powder and granules can be moved toward the outer circumference. It is possible to disperse.

The opening degree of the slide gate 18 is adjusted by moving the wheel 19 manually or by other driving means in conjunction with a coaxial pinion 20 and a rack 21 that meshes with the slide gate 1.
8 is moved horizontally.

The present invention consists of a powder spreader as described above, and since the rotor shaft is divided into two and formed into short shafts, there is less chance of generating torsional stress, and many subdivided rotors are fitted. , the rotor is easily replaced, which improves and improves operational integrity.

Furthermore, since the rotor is driven by the rear wheels and accelerated, it is possible to spray in proportion to the wheel speed, and at the same time, it is possible to spray in the direction of travel of the wheels, making construction extremely rational and efficient. shall be.

The spreader is designed so that it can be towed by a tank truck, etc., and can spread over the entire width of the hopper.The spreader also has the advantage of being able to finely adjust the powder and granule spread by adjusting the gate, allowing for wide and even spread as planned. There is.

In addition, since the rear wheels are loosely fitted onto the axle, they do not follow the front wheels, and the rotor shafts to which the rotation of the rear wheels is transmitted are also configured to rotate independently on the left and right sides. It has an extremely rational structure in which the powder is dispersed in proportion to the wheel speed.

In this way, the spreader of the present invention not only saves labor, but also has few complicated mechanical parts and does not have a power unit, so there is no mechanical trouble, so the manufacturing cost is low, and it is easy to operate. The safety of the work is guaranteed.

Furthermore, since there is no need to set a location for the powder board during construction, it is convenient for use in narrow land or road surface construction.

[Brief explanation of the drawing]

Fig. 1 is a side view of a powder spreader according to an embodiment of the present invention, Fig. 2 is a plan view taken along line A-A in Fig. 1, and Fig. 3 is an enlarged perspective view of a part of the rotor of the powder spreader of the present invention. figure. 6...Bin, 7...Hopper, 11.
11'...Rotor with blades, 12,12'...
...Rotor shaft, 13.13'...Pillow block, 14.14'...Clutch, 18.18
'...Slide gate.

Claims (1)

[Scope of utility model registration request] It is placed on the frame of a four-wheeled vehicle body with a connecting rod at the front,
A bottle with a hopper containing powder and granular material, in which a rotor shaft consisting of two shafts is supported at the center at the bottom of the hopper,
Blades are arranged side by side on the shaft to form a rotor, and below the rotor, an exhaust port is bored and an exhaust gate is provided, while a rear wheel is loosely inserted into the rear wheel shaft, and A powder spreader characterized by comprising a drive device that rotates a rotor shaft.