JPS5934588Y2 - Rake rotation lifting device for telescopic pipe type dust remover - Google Patents

Description

[Detailed description of the invention] This invention is based on the rotation of the rake in a telescopic pipe type dust remover, which removes dust from the screen surface by attaching a rake to the lower end of the telescopic pipe in which multiple unit pipes are telescopically connected. This relates to a lifting device.

Conventionally, a dust remover is known in which a rake that is rotated by a hydraulic cylinder is attached to the lower end of a telescoping tube that is expanded and contracted by a hydraulic cylinder, but the hydraulic hose of each hydraulic cylinder must be hoisted or paid out in accordance with the expansion and contraction of the telescoping tube. Therefore, the structure is complicated, the winding adjustment of the hose is not easy, and a hydraulic cylinder and a hose are required, resulting in an increase in cost.

In order to solve the above-mentioned conventional problems, this invention proposes a rational device in which the expansion and contraction of the telescoping pipe is performed by a lifting cable, and the rotation of the rake is also performed by the operation of the same lifting cable. It is something.

Hereinafter, an embodiment of this invention shown in the drawings will be described.A telescopic pipe 3, which is a main pillar 2 installed on a floor slab 1, has a plurality of unit pipes 3 connected in a telescopic manner, and is swingable back and forth by a pivot 4. A swing cylinder 5 is connected between the telescopic tube 3 and the column 2.

A rake 6 is rotatably attached to the lower end of the telescopic pipe 3, that is, the lower end of the lower unit pipe 3.

A bracket 7 fixed to the center of the rear end of the rake 6 is pivotally mounted to a rotation shaft 8, and a worm wheel 9 is attached to the rotation shaft 8.

The worm wheel 9 meshes with a worm 11 provided on a rotary drive shaft 10 supported horizontally within the lower end of the lower unit tube 3.

A sprocket 12 is provided on the rotary drive shaft 10, and a chain 13 is wound around the sprocket 12.

Lifting cables 14.14' made of wire ropes or chains are connected to both ends of the chain 13, and each lifting cable 14.14' is connected to a performance drum 16.16' rotated by a separate prime mover 15°15'. It is wrapped.

Naturally, by appropriately modifying the structure of the hoisting drum section, the lifting cable can be constructed of a link chain or a roller chain over its entire length.

In the figure, 17 is a screen, and 18 is a discharge section having a discharge conveyor.

In the above configuration, when extending and contracting the telescopic tube 3 in order to raise and lower the rake 6 along the screen 17, the hoisting drum 1
6.16' are rotated forward or reverse in the same direction and at the same speed to let out or wind up the left and right lifting cables 14 and 14' at the same time.

In this case, the chain 13 to which the lifting cables 14 and 14' are connected to move up and down at the same time does not move relative to the rotary drive shaft 10, and the sprocket 12 does not rotate, but the rake 6 ascends and descends while maintaining the same posture.

Next, when rotating the rake 6, the sojo drum 16.1
6' in opposite directions and rotate the left and right lifting cables 14.14
By letting out one side and winding up the other side, the chain 13 rotates the spinning sprocket 12 and the rotary drive shaft 10, and thereby the worm 11 moves to the worm wheel 9.
and rotates the rotation shaft 8 to rotate the rake 6.

Then, as shown in FIG. 1, the telescopic tube 3 is extended and the rake 6
When lowering the rake horizontally, or when discharging the garbage scooped up by the rake 6 into the discharge section 18, rotate the rake 6 downward, and rake up the garbage while pulling the rake 6 along the screen 17. If so, rotate the rake 6 upward.

As described above, according to this invention, a sprocket is fixed to a rotary shaft that is rotatably supported horizontally at the lower end of the telescopic tube, a chain is wound around the lower half of the sprocket, and the left and right ends are connected from the upper end of the telescopic tube to the rotating shaft. It is connected to a pair of lifting cables that are suspended inside and can be raised and lowered by separate elevators, so each lifting cable is raised and lowered at the same speed and in the same direction by each elevator, allowing the telescoping tube to expand and contract. The rake can be raised and lowered, and the rotary drive shaft is linked via a rotational force transmission mechanism to the rotation shaft of the rake, which is rotatably attached to the lower end of the telescopic pipe, so each of the above-mentioned lifting ropes can be moved up and down by each elevator. By raising and lowering the rake in opposite directions at the same time, the chain is made to run once, rotating the rotational drive shaft together with the sprocket, and the rotational force is transmitted to the rotational shaft of the rake through the rotational force transmission mechanism, thereby rotating the rake. Can be done.

Therefore, according to this invention, both the raising and lowering and rotating operations of the rake can be easily performed by raising and lowering the pair of lifting cables, and it is extremely rational, simple in structure, and economical.

Particularly in the case of a deep screen, it is necessary to adapt the entire length of the telescopic tube to the depth, so the telescopic tube must be made by polymerizing many unit tubes. , the effects of the present invention are further enhanced.

[Brief explanation of the drawing]

FIG. 1 is a side view of the dust remover according to this invention, FIG. 2 is a front view of the same, FIG. 3 is a vertical side view of the lower end of the telescopic tube, and FIG. 4 is a vertical front view of the same. 3... Telescopic pipe, 3'... Unit pipe, 6.
... Rake, 8 ... Rotation axis, 9 ...
・Worm wheel, 10...Rotation drive shaft, 1
1...Worm, 12...Sprocket, 13...Chain, 14.14'...
... Lifting cable, 15.15'... Prime mover, 16°16'... Hoisting drum.

Claims (1)

[Scope of utility model registration request] A sprocket is fixed to a rotary drive shaft supported horizontally and rotatably at the lower end of the telescopic pipe, and the rotary drive shaft and the rotating wheel of the rake rotatably attached to the lower end of the telescopic pipe are connected via a rotational force transmission mechanism. A chain is wound around the lower half of the sprocket, and the left and right ends of the chain are respectively connected to a pair of lifting cables that are suspended from the upper end of the telescopic tube and can be raised and lowered by separate elevators. A rake rotation elevating device for a telescoping tube type dust remover, characterized by: