JPS6016529B2 - Water gate screen dust removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust removal device for a sluice gate screen, and more particularly to a dust removal device in which a common wire rope is used to raise and lower the dust remover along the screen and to operate the sweeper.

The conventional dust removal device that raises and lowers the dust remover along the water gate screen uses two types of wire ropes, one for raising and lowering and one for opening and closing the screen.As a result, the drive structure is complicated and it is inconvenient to operate. The disadvantages include that it is troublesome to adjust the tension.

SUMMARY OF THE INVENTION An object of the present invention is to provide a water gate screen dust removal device that eliminates the above-mentioned drawbacks of the conventional technology.

To explain the illustrated embodiment below, the dust remover 1 has front and rear wheels 3, 4 on a pair of left and right frames 2, 2, respectively.
Both frames 2, 2 support both ends of the horizontal rotating shaft 5, and the shaft 5 maintains a constant spacing between the frames 2, 2, and the wheels 3, 4 are rotated along the vertical village 7 of the water gate screen 6. It rolls.

The shaft 5 is located further away from the screen 6 than the center of the wheel 4. A rake 8 is fixed to the shaft 5 between the frames 2, 2, and a hoisting wire rope 10 is tied to arms 9 fixed at both ends of the rake 8, and the tension thereof causes the shaft 5 to generate a torque in the counterclockwise direction in FIG. give. Sector gear 1 on shaft 5
1 is fixed and meshed with a drive gear 12 fixed to a wheel 4, and the rotation range of the sector gear 11 is limited by stoppers 13 and 14 fixed to a frame 2.

When the sector gear 11 comes into contact with the stoppers 13 and 14, it is disengaged from the gear 12. As shown in FIG. 4, a pin 15 is located behind the last clockwise gear 11a of the sector gear 11.
On the other hand, an engaging claw 16 is pivotally connected to the gear 12 with a pin 17, and a spring (not shown) moves the engaging claw 16 to the stopper 1.
Leave it in contact with 8. The tip of the engaging claw 16 can engage with the pin 15 in the corresponding position. When the wire rope 10 is hoisted almost parallel to the screen 6 at the hoisting rock 19 (Fig. 2), the sector gear 11' rotates counterclockwise due to the rotation of the wheel 4 and hits the stopper 13, and the gear 12 and The mesh becomes disengaged.

At the same time, the rake 8 assumes the upper layer (open position) where the tip 8a is inserted between the screen vertical members 7, and scrapes up floating dust adhering to the screen 6. Even if the engaging claw 16 hits the pin 15 during winding, there is no problem because it will fall backward. Next, when the wire rope 10 is lowered, the bonito remover 1 descends due to its own weight, and as the wheel 4 rotates counterclockwise, the engaging pawl 16 engages the pin 15 and rotates the sector gear 11 clockwise. move.

As a result, the sector gear 11 meshes with the gear 12 again, and when it hits the stopper 14, the mesh is disengaged. At this time, the rake 8 is in an open position where the tip 8a is substantially parallel to the screen 6, and the arm 9 is stopped at an angular position slightly before the dead center. Therefore, a counterclockwise torque due to the tension of the wire rope 10 and a clockwise torque due to the wheels 4 act on the lowering center shaft 5. However, wheel 4 where the latter torque is greater
After determining the adhesion characteristics between the dust remover 1 and the screen 6, the gear ratio, the length of the arm 9, etc., the dust remover 1 is lowered while holding the screen 8 in the open position. Therefore, when descending, the rake 8 moves laterally while repeatedly raising and lowering more than it can handle, and scrapes up and removes the dust adhering to the screen.

The present invention has the above-mentioned structure, and since a common wire rope is used to raise and lower the bonito remover and to open and close the key, the drive mechanism is simple and easy to operate, and since the bonito remover is supported by four wheels, the bonito remover can be removed easily. The effect is that the upper action can be performed stably and there is no noise.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention, with the first being an elevational view and the second being an elevational view.
The figure is a cross-sectional view taken along the line A--A in FIG. 1 when the gear is ascending, FIG. 3 is a cross-sectional view when the gear is descending, and FIG. 4 is a partial elevational view showing the gear meshing device. 1... Dust remover, 2... Frame, 3, 4.
...Wheel, 5...Rotating shaft, 6...
・Screen, 8...・Letter key, 9...Arm, 10...Wire rope, 11...Sector gear, 12
... Drive gear, 15 ... Pin, 16.
...Engagement pawl, 18...Stopper. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A pair of frames with front and rear wheels that roll on a screen support both ends of a rotating shaft with a rake fixed to the center, and a sector gear fixed to the rotating shaft meshes with a drive gear fixed to the wheel. At the same time, a wire rope for hoisting is tied to an arm fixed to the rotating shaft, and during hoisting and unwinding, the rotation of the wheel causes the fan-shaped gear to rotate and stop at the position where the mesh is released, and the rake is rotated during hoisting. The fan-shaped gear is provided with an engaging pawl that rotates and stops at the non-raking position when lowering to the upper position, and whose base end is pivotally supported by the drive gear and whose rotation in one direction is stopped by a stopper when lowering is started. A dust removal device for a water gate screen characterized by engaging a pin to rotate a sector gear to a position where it meshes with a drive gear.