JPH03407Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a spreading plate for a spreading machine that spreads cut stone, gravel, road antifreeze agent, etc. (hereinafter referred to as a spreading agent).

(Conventional configuration and its problems) Conventionally, this type of spreader has a structure in which multiple blades of appropriate length are attached to the top surface of a disc, and the width of the spraying agent can be adjusted by adjusting the spray width. A means of changing the number of rotations of the disk was provided. Increasing the rotation speed of the spreading plate increases the amount and width of spreading, but
Since the flying speed of the spraying agent also increases, the spraying agent is subject to greater air resistance as it flies, and as a result, it is more likely to be scattered in the air, making it difficult to obtain a homogeneous distribution on the road surface. Therefore, there is a practical limit to the number of rotations of the spreading plate. In order to widen the spreading width at a constant rotation speed, it is possible to install the spreader at a higher position above the road surface, but there are various factors such as the height of the chassis from the road surface, the configuration of the spreader itself, and the configuration of the rotation mechanism of the spreader. The height is limited by.

(Purpose of the invention) Under the above-mentioned circumstances, the present invention aims to reduce the spreading width by using a spreading plate with a conventional configuration at the rotational speed of the spreading plate that does not cause scattering when the spraying agent, etc. flies. It is an object of the present invention to provide a spreading plate for a spreading machine that is larger than its width and can spray densely and uniformly on a road surface.

(Structure of the invention) In order to achieve the above object, the spreading plate in the spreading machine of the present invention has an inverted conical shape, an appropriate number of vanes are attached to the inner surface of the side wall, and the center of the bottom of the spreading plate is connected to the center of the spreading plate. It is fixed to a rotating shaft that hangs from the frame so that it can be rotated. The configuration and mode of use will be explained below with reference to the drawings. FIG. 1 shows a dispersion plate according to the present invention, in which 1 is an inverted conical side wall, 2 is a blade plate attached to the inner surface of the side wall, and 3 is a rotating shaft hole formed at the top of the cone. According to experiments, it is appropriate that the angle between the side wall of the truncated cone and the axis is between 70° and 80°. FIGS. 2 and 3 show an example of a spreader shown to explain how to use the spreader according to the present invention, and 01 is a hopper placed on a machine frame 02;
3 is a belt conveyor located below the hopper 01 and driven by a chain mechanism from a hydraulic motor 04 via a reducer 05; 06 is a chute whose upper end opening faces the conveyance end (rear end) of the belt conveyor 02; , 07 is a discharge tube provided on the lower end side of the chute 06, 08 is a scattering disk according to the present invention provided below the discharge tube, and 09 is a rotation shaft of the distribution disk. In the spreader having such a configuration, the spreading agent fed into the hopper 01 is transferred to the belt conveyor 0.
3, and is sent by the belt conveyor 03, passes through the chute 06 and the discharge cylinder 07, and falls onto a part of the rotating spreading plate 08. Spreading board 08
The upper spreading agent is guided by the vane plate 2, reaches the vicinity of the spreading plate due to centrifugal force, and leaves the spreading plate. The speed of the spraying agent when it leaves the spreading plate is given by the vector sum of the relative velocity to the spreading plate and the peripheral speed of the spreading plate, and its direction is upward from the horizontal direction. still,
The relative speed of the spreader plate is affected by the shape of the blades on the spreader plate, the installation angle, etc.
For example, as shown in FIG.
s is pivoted and the angle at which the second blade plate 2s is attached to the spreading plate can be changed, it is possible to adjust the speed of the spraying agent when leaving the spreading plate, the direction, and the upward angle from the horizontal plane. It can be done.

(Effect) As described above, according to the spreading plate of the present invention, the spraying agent leaves the periphery of the spreading plate at an upward speed from the horizontal. The spreading width can be made larger than that of a spreading plate. In other words, the spreading disk according to the present invention can reduce the speed at which the spraying agent leaves the spreading disk in order to achieve the desired spreading width, compared to the known disc-shaped spreading disk. Therefore, the air resistance that the spraying agent receives during flight is small, and as a result, homogeneous spraying on the road surface can be achieved. In addition, when it is possible to change the installation angle of the blade plate, the spraying agent has a velocity component upward from the horizontal, and the spraying situation can be adjusted over a wide range. This significantly improves the workability of the spreader.

[Brief explanation of the drawing]

FIG. 1 shows a first embodiment of a spreading plate according to the present invention.
FIG. 2 is a front view of a spreader using the spreader plate according to the present invention. FIG. 3 is a side view seen from the direction of arrow A-A in FIG. 2. FIG. 4 shows a second embodiment of the spreading plate according to the present invention. DESCRIPTION OF SYMBOLS 1...Side wall, 2...Blade plate, 3...Scatter plate rotation shaft hole, 01...Hopper, 03...Belt conveyor, 04...Hydraulic motor, 06...Chute, 07...Discharge tube, 08... ...A spreading plate according to the present invention.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An aggregate characterized in that the shape of the spreading plate is an inverted cone, an appropriate number of vanes are attached to the inner surface of the side wall, and a rotating shaft hole is formed in the center of the side wall. Spreading plate in a spreading machine such as. (2) A spreading plate for an aggregate, etc., spreading machine as described in item 1 of the scope of utility model registration, in which the blade plate is fixed to the spreading plate. (3) A spreading plate for a spreading machine for aggregate, etc. as set forth in claim 1 of the utility model registration claim, which allows changing the angle at which the blade plate is attached to the spreading plate.