JPS61242658A - Scattering apparatus for powdery granular material - Google Patents

Abstract

PURPOSE:To scatter stably a powdery granular material in a simple structure by driving a screw feeder and an agitator or the like with the motive force of a vehicle in case of running it, feeding the powdery granular material to a lower part while stirring it, rotating and scattering it. CONSTITUTION:In relation to an apparatus which is provided to a vehicle and scatters a powdery granular material such as an antifreezing agent, a screw feeder 5, an agitator 6 and a fluid pressure pump 10 are driven in proportion to the running velocity by running the vehicle and also taking out one part of the motive force with a motive force takeout device 3. Thereby while the powdery granular material incorporated in a hopper 4 is stirred by the rotation of the agitator 6, it is transferred to an outlet side by the rotation of the screw feeder 5 and reached to a metering rotor 8. The powdery granular material is sent to a lower part of a chute by a prescribed amount at a time by controlling a motor 9 with a fluid pressure pump 10 and rotating the rotor 8 and it is scattered while rotating a scattering disk 11.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a granular material dispersing device installed in a vehicle for dispersing granular material such as anti-freeze agent and aggregate onto roads and the like.

(Prior Art) Conventionally, as this type of powder scattering device, one disclosed in Japanese Patent Publication No. 53-36709, for example, is known.

This detects the vehicle's running speed and converts it into an electrical signal,
By controlling the flow rate of the electromagnetic proportional valve, the speed of the heald conveyor is adjusted via the hydraulic motor, and the electromagnetic valve is opened and closed based on electric signals depending on the type of powder, scattering width, and scattering density to control the belt. The opening area of the gate provided above the conveyor is set, and the layer thickness of the powder on the belt conveyor is adjusted to maintain the amount of spray per unit area at a predetermined value.

However, such a device had the following drawbacks.

(1) Since the running speed of the vehicle and the speed of the belt conveyor are electrically proportional, a feedback circuit and a comparison circuit are absolutely necessary, which complicates the structure and easily causes failures.

(2) By moving the gate relative to the belt conveyor, the layer thickness of the powder on the heald conveyor is adjusted and the amount of spraying is set, but since the belt of the belt conveyor is flexible, The setting accuracy of the spray amount is poor.

(3) Since a belt conveyor is installed below the outside of the hopper and the transportation route for the powder and granules from the hopper to the chute is an open type, there is a high risk that the powder and granules will scatter.

Furthermore, when the powder is raw salt or calcium chloride such as an antifreeze agent, when the inside of the hopper is cleaned, the water containing salt after cleaning is likely to accumulate on the chassis of the vehicle and cause corrosion.

(Problems to be Solved by the Invention) The present invention has been devised in view of the problem of slanting and to solve the problem, and its purpose is to simplify the structure,
It is an object of the present invention to provide a powder and granular material dispersing device which is designed to prevent breakdowns, improve the setting accuracy of the spray amount, prevent powder and granular material from scattering, and prevent corrosion.

(Means for solving the problems) The powder dispersion device of the present invention includes a vehicle equipped with a self-propelled device,
A power take-off device is installed in the middle of the vehicle's self-propelled device and takes out a part of the power, a hopper is installed in the vehicle and has an outlet, and it is connected to the output shaft of the power take-off device, which is installed inside the hopper. A screw feeder that transfers the granular material to the outlet side, an agitator that is disposed inside the hopper and connected to the output shaft of the power extraction device to agitate the granular material, and a chute that is provided to communicate with the outlet of the hopper. , =, A meter link cloak is provided in the middle of shoe 1 to send out a predetermined amount of powder and granules, and a fluid pressure motor is connected to the output shaft of the power take-off device to drive the meter link cloak. A hydraulic pump that controls the motor, a spreading plate that is rotatably installed below the unit and that spreads powder and granules, a hydraulic motor that drives the spreading plate, and a hydraulic pump that controls the hydraulic motor. It is distinctive in that it is composed of .

(Function) When the self-propelled device is started, as the vehicle travels, part of its power is extracted by the power extraction device, and the screw feeder, agitator, and fluid pressure pump operate in proportion to the traveling speed of the vehicle. Driven.

The powder in the hopper is agitated by the rotation of the agitator and is transferred to the outlet side by the rotation of the screw feeder, reaching the metering rotor in the middle of the chute.

Then, the fluid pressure motor is controlled by the drive of the fluid pressure pump, and the loaf of the metering rotor rotates, thereby discharging a predetermined amount of granular material down the chute in proportion to the traveling speed of the vehicle.

On the other hand, when the hydraulic pump is driven, the hydraulic motor is thereby controlled to rotate the spreading plate.

The powder and granules discharged from the chute fall onto the scattering disk and are then scattered by the rotation of the disk.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a longitudinal cross-sectional side view of a main part showing the structure of a powder scattering device according to an embodiment of the present invention. FIG. 2 is a partially longitudinal front view showing the structure of the meter link cloak portion. FIG. 3 is a longitudinal sectional front view showing the structure of the screw tweeter portion.

The granular material spreading device 1 includes a vehicle 2, a power extraction device 3, a hopper 4, a screw feeder 5, an agitator 6, a chute 7,
Meter link cloak 8, fluid pressure motor 9, fluid pressure pump 10, spreading plate 11, hydraulic motor 12, hydraulic pump 13c
! : The main part is composed of:

The vehicle 2 is equipped with a self-propelled device 14, and
, a front wheel (not shown), a rear wheel 16, a driver's seat (not shown), etc., excluding a so-called loading platform, is used, and the self-propelled device 14 includes an engine (not shown), It consists of an l-transmission 17, a propeller shirt l-18, a rear axle 19, etc.

The power extraction device 3 is interposed in the middle of the self-propelled device 14 of the vehicle 2 and extracts a part of the power, and is connected to the propeller shaft 1.
This includes an input shaft 20 connected to the propeller shaft 18, an output shaft 21, an appropriate number of gear groups 22 provided to connect these, and a gear group 22 interposed between these. It consists of an electromagnetic clutch 23 that connects and disconnects the power from the input shaft 20 to the output shaft 21.

The electromagnetic clutch 23 is ON/OFF controlled by a switch (not shown) on an operation panel provided in the driver's seat, and the electromagnetic clutch 23
A structure that disconnects when moving backward is used.

The hopper 4 is provided in the vehicle 2 and is equipped with an outlet 24, and has a triangular box shape and contains powder and granular material such as antifreeze agent A.
is stored, an input port 26 that is releasably closed by a lid 25 is provided at the top, and an outlet 24 is provided at the rear.
It is provided on the - side of the chassis 15 so that the rear side is inclined downward.

The screw feeder 5 is disposed in the hopper 4 and is connected to the output shaft 21 of the power extraction device 3 to transfer the powder to the outlet 24 side.
The rotary shaft 27 is arranged in the front and back direction of the lower part of the hopper 4 and is rotatably supported. At the same time, the screw 28 has a screw whose pinch gradually increases from the front to the rear in order to smoothly feed the granular material A.

A reducer 32 is provided on the front side of the output shaft 21 of the power extraction device 3 via a propeller shaft 31, and a sprocket 34 is provided on the output shaft of this via a 1-luke limit 33. and this sprocket 34
A chain 35 is stretched between the sprocket I.29 and the sprocket I.29.

Above the screw feeder 5, a partition 36 is provided, which consists of a fixed plate 37 having an inverted V-shaped cross section and a movable plate 39 attached to both sides of the fixed plate 37 by fasteners 38 so as to be able to move forward and backward.
(!:) to prevent overload from being applied to the screw feeder 5 due to the granular material A, and to adjust the opening degree with the hopper 4 by moving the movable plate 39 relative to the fixed plate 37. It is made to correspond to the type of powder or granular material A depending on.

The agitator 6 is disposed within the hopper 4 and is connected to the output shaft 21 of the power extraction device 3 to agitate the powder and granular material A.
Consisting of a rotating shaft 40 and a stirring blade 41, it is disposed above the hopper 4 in parallel with the screw feeder 5 and is rotatably supported.The front part of the rotating shaft 40 passes through the hopper 4 and has a sprocket 42 therein are wedge-attached, and the stirring blades 41 are rod-shaped rod-shaped blades that protrude at different angles at predetermined intervals from the rotating shaft 40.

A chain 43 is stretched between the sprocket 1-42 and the sprocket 30.

The chute 7 is provided to communicate with the outlet 24 of the hopper 4, and has a two-part shoe I.44 and a lower part.

The upper shoes 1 to 44 are fixed to the rear part of the hopper 4, and an openable/closeable door 46 for maintenance is provided at the upper part of the hopper 4.

The metering block 8 is provided in the middle of the shoe 1-7 to send out a predetermined amount of the granular material A, and is arranged between the upper chute 44 and the lower chute 45, and has an inlet at the upper part. It consists of a casing 47 which has an outlet at the bottom and is attached to the lower part of the upper chute 44, and a rotor 48 which is rotatably provided inside the casing 47, and the same ones are arranged symmetrically side by side.

The fluid pressure motor 9 drives the metering brake 8, and uses a constant displacement piston type pressure motor, and is connected to the rotor 48 via a reduction gear 49 and a torque cup link 50. The same ones are provided one each on the left and right in response to the make link cloak 8.

The fluid pressure pump 10 is connected to the output shaft 21 of the power extraction device 3 to control the fluid pressure motor 9, and is a tandem variable displacement 1117 type hydraulic pump connected to the rear side of the output shaft 21 of the power extraction device 3. Pumps are used, two hydraulic pumps 10 each being hydraulically coupled to a hydraulic motor 9.

The discharge amount of each fluid pressure pump 10 can be varied by changing the angle of its swash plate. (not shown), the electric cylinder 51 is controlled.

The scattering disk 11 is rotatably provided below the chute 7 to spread powder and granules, and is composed of a disk 52, its support shaft 53, and a bearing 54 that supports the disk. 4 It is attached to the lower part of an art 56 which is provided on a bracket 55 provided at the rear of the two-part chute 44 so as to be able to be lifted up and down.

A lower chute 45 is located above the disc 52, and is attached to an arm 56, with a portion thereof abutting the lower part of the casing 47 of the make link cloak 8, and the lower chute 45 is attached to the arm 56. The spreading plate 11 can be rotated upward and held as shown by the chain line in FIG.

The hydraulic motor 12 drives the spreading plate 11, and is a constant displacement piston type hydraulic motor, and is provided on the upper part of a bearing 54 so as to rotate a support shaft 53.

The hydraulic pump 13 controls the hydraulic motor 12,
A constant displacement gear type pressure pump is used, which is rotatably driven by an electric motor (DCC motor 57) and is mounted on the chassis 15.

The hydraulic pump 13 is hydraulically connected to the hydraulic motor 12.

Next, the operation will be explained based on such a configuration.

When the engine of the self-propelled device 14 is started, its power is
The transmission is transmitted from the transmission 17 to the propeller shaft 18 to the rear axle 19 to the rear axle 16, and the vehicle 2 runs. When the lance 17 is in the forward position, it moves forward, and when it is in the reverse position, it moves backward.

When the electromagnetic clutch 23 is connected by operating the switch on the operation panel of the driver's seat, part of the power from the propeller shaft 8 is transferred to the power extraction device 30 input shaft 20 - gear group 2.
2-Electromagnetic clutch 23→transmitted to output shaft 21. The electromagnetic flange 23 is in a disconnected state when the vehicle 2 is traveling backwards,
It is connected only when the vehicle 2 moves forward, and prevents reverse rotation of objects after that.

The power transmitted to the output shaft 21 is transferred to the propeller shaft 31
→ Reducer 32-1 - Lu limiter 33 → Sprocket 3
4→chain 35-1 sprocket 29→rotation shaft 27, and the screw feeder 5 is rotated.

When the screw feeder 5 rotates, the powder A in the hopper 4 is transferred toward the outlet 24 and reaches the upper chute 44.

At the same time, sprocket 30 → chain 43 → rotor 4
0 is also transmitted to rotate the agitator 6, which agitates the powder A in the hopper 4 to prevent it from sticking.

In addition, due to the power transmitted to the output shaft 21, the fluid pressure pump I
O is driven.

Then, the electric cylinder 51 is operated to control the swash plate angle of the fluid pressure pump 10 so that a predetermined discharge amount is obtained.

When each fluid pressure pump 10 is driven, each fluid pressure motor 9 fluidly connected to it is activated, and its power is
The torque is transmitted from the reducer 49 to the torque limiter coupling 50 to the rotor 48.

When the rotor 48 of the metering rotor 8 rotates, the particulate material A that had reached the negative part chute 44 is dropped down thereunder through the lower chute 45 in predetermined amounts.

When the electric motor 57 is started, the hydraulic pump 13 is driven, and the hydraulic motor 12 which is hydraulically connected thereto is operated, and the power is transmitted to the support shaft 53 and the disk 52 to drive the spreading plate 1.
1 turns.

When the scattering plate 11 rotates, the powder A that has fallen into the plate is dispersed in a predetermined range corresponding to the number of rotations thereof.

Mr. Kono, on the operation panel in the driver's seat, the spray width (e.g. 3.5, 7rn), the spray density (e.g. 20, 30rn)
, 40, 50, 70 f//nl) and the specific gravity of the powder A (for example, 0.7"lap?), and the rotational speed 2 of the setting machine 57 is automatically determined.

After that, the traveling speed of the vehicle 2 (5~ amount, that is, the rotation of the metering rotor 8) is directly proportional.

Therefore, a predetermined amount of powder A corresponding to the vehicle's 20 running speeds.
The scattering of the lines will be automatically performed.

If spreading is not to be carried out, the spreading plate 11 etc. is rotated and held at the position indicated by the chain line in FIG.

In this way, it does not get in the way and can prevent damage when driving on rough roads.

If powder A sticks inside the metering rotor 8,
At the same time as opening the door 46, the lower noyute 45 is moved to the scattering plate 11.
This can be easily removed from above and below by rotating it to one side.

Additionally, the vehicle 2, power extraction device 3, hopper 4, screw feeder 5, agitator 6, chute 7, metering rotor 8, fluid pressure motor 9, fluid pressure pump 10, and spreading plate 11
, the hydraulic motor 12, the hydraulic pump 13, etc., are not limited to those in the previous embodiment, and it goes without saying that the design can be changed as appropriate.

In particular, in the previous embodiment, the hydraulic pop-up 13 is driven by the electric motor 57 using a fixed-capacity gear type hydraulic pump, but is not limited to this, and can be driven by a variable-capacity pump, for example, similar to the fluid-pressure pump IO. It is also possible to connect it to the output shaft 21 of the power take-off device 3 using a screw-type hydraulic pump.

(Effects of the Invention) As described above, according to the present invention, the following excellent effects can be achieved.

(1) Since a part of the power of the vehicle's self-propelled device is used to drive the screw tweeter, agitator, and fluid pressure pump, there is no need to provide separate drive sources for each, which simplifies the structure. can.

Also, since it is mechanically driven, it works reliably and there is no need to worry about breakdowns.

(2) Since a metering rotor is provided to actively send out a predetermined amount of powder or granules, the accuracy of setting the amount of spraying can be greatly improved.

Of course, part of the power from the self-propelled device drives the fluid pressure pump, and the metering rotor is operated via the fluid pressure motor, so the amount of powder and granules spread is proportional to the running speed of the vehicle. You can do it.

(3) A screw feeder is installed in the hopper, and the transportation path for powder and granular materials from the hopper to the unit is closed.1. Therefore, there is no scattering of powder or granules during this process.

(4) The transportation route for powder and granules from the hopper to the chute is sealed, making it easy to clean the area and preventing water after cleaning from accumulating on the vehicle chassis and corroding them. It can be made 1.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional side view of a main part showing the structure of a powder scattering device according to an embodiment of the present invention. FIG. 2 is a partially longitudinal front view showing the structure of the metering rotor portion. FIG. 3 is a longitudinal sectional front view showing the structure of the screw feeder portion. 1...Powder spreading device 2...Vehicle 3...Power take-off device 4...Hon no size 5...
・Screw feeder 6... Digitator 7... Chute 8... Metering rotor 9... Fluid pressure motor 10... Fluid pressure pump 11... Spreading board 12... Hydraulic motor 13... Hydraulic pump

Claims (1)

[Claims] A vehicle equipped with a self-propelled device, a power extraction device interposed in the middle of the self-propelled device of the vehicle to take out a part of the power, a hopper provided in the vehicle and provided with an outlet, and a hopper provided in the hopper. a screw feeder that is connected to the output shaft of the power take-off device and transports the powder to the outlet side; an agitator that is disposed inside the hopper and connected to the output shaft of the power take-off device that stirs the powder; A chute installed to communicate with the outlet, a metering rotor installed in the middle of the chute to send out a predetermined amount of powder and granules, a fluid pressure motor that drives the metering rotor, and an output shaft of a power extraction device. A fluid pressure pump that is connected to control a fluid pressure motor, a spreading plate that is rotatably provided below the chute and that spreads powder and granules, a hydraulic motor that drives the spreading board, and a hydraulic motor that controls the hydraulic motor. A powder dispersion device characterized by comprising a hydraulic pump.