JPH0868036A - Extensible arm type automatic rubbish rejecting device - Google Patents

Abstract

PURPOSE: To provide a durable and light extensible arm type automatic rubbish removing device of which height can be reduced and structure can be simplified. CONSTITUTION: This device is provided with an upper arm 52, a lower arm 53, and a rake 54 which is arranged so as to freely slide against the upper arm 52 and further provided with a first lifting means for the lower arm 53 movable with respect to the upper arm 52, and a second lifting means for the rake 54 movable with respect to the lower arm 53. The second lifting means is composed of a pair of rotors rotatably arranged at both upper and lower parts of the lower arm 53 and a transmission member extended between respective rotors and fixed to the upper arm 52 at least at one point. Since one point of transmission member is fixed to the upper arm 52, when the lower arm 53 is lifted or lowered by a specified stroke by the first lifting means, the raked-up volume by the rake 54 is two times of the stroke of the lower arm 53.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic arm type automatic dust remover used in a water channel of a sewage treatment plant or the like.

[0002]

2. Description of the Related Art Conventionally, a sand basin of a sewage treatment plant, a drainage station,
In facilities such as agricultural waterways and sand basins of water purification plants, various dust removers are installed to remove contaminants in the water. In this case, an optimum dust remover that meets the conditions of the facility is selected and installed.

The dust remover includes a pin rack type, a loop chain type, a back rake type and the like, but it is structurally difficult to run these dust removers over a plurality of water channels. Therefore, a dust remover is arranged independently for each water channel. On the other hand, in the rope type dust remover, since the rake is suspended by the rope, it is possible to travel over a plurality of water channels. However, since a structure for suspending the rake with a rope is required, not only is the height high, but the structure is complicated.

Therefore, a telescopic arm type automatic dust remover is provided. In the extendable arm type automatic dust remover, a dust removing screen is arranged so as to be inclined in a plurality of water channels, an arm extending and contracting with respect to the dust removing screen is provided, and a rake is attached to the tip of the arm. Then, the rake is moved upward to scrape off the dust collected by the dust removal screen.

Therefore, when dust removal from one water channel is completed, the arm is contracted to remove dust from the other water channel, the rake is moved in the width direction of the water channel, and the rake is passed through the partition wall that divides the water channels. You can do it (Actual Public Sho 61-31)
061). FIG. 2 is a schematic view of a conventional telescopic arm type automatic dust remover, and FIG. 3 is a perspective view of the conventional telescopic arm type automatic dust remover.

In the figure, 11 is an extendable arm type automatic dust remover, 12 is a dust removing screen arranged in a water channel, and 13 to
Reference numeral 15 is an arm that is slidably arranged. Sprockets 1 are provided on both ends of the arm 13.
6, 17 are attached, and a chain 18 is stretched around the sprockets 16, 17. Further, sprockets 20 and 21 are attached to both ends of the arm 14, and a chain 22 is stretched around the sprockets 20 and 21.

The chain 18 and the arm 14, the chain 22 and the arm 13, and the chain 22 and the arm 15 are fixed by fixing means 31 to 33, respectively. By driving the first motor 23 disposed on the top of the automatic dust remover 11 to rotate the sprocket 16, the arm 14 is housed in the arm 13 and the arm 15 is housed in the arm 14 to contract, or the arm 14 is contracted. 14 can be extended from the inside of the arm 13 and the arm 15 can be extended from the inside of the arm 14. Therefore, by driving the first motor 23, the rake 25 arranged at the tip of the arm 15 can be moved up and down along the dust removing screen 12. In this case, a counterweight 35 is fixed to the chain 18 in order to smoothly move the rake 25 up and down, and moves together with the running of the chain 18.

Further, 26 is a support shaft for swingably supporting the arm 13, 27 is the telescopic arm type automatic dust remover 11
Is an extrusion device that swings the rake 25 to engage and disengage the rake 25 with respect to the dust removal screen 12, and is driven by a second motor. In this case, in order to smoothly swing the telescopic arm type automatic dust remover 11, a counterweight 36 is fixed to the opposite side of the arm 13 about the support shaft 26, and the telescopic arm type automatic dust remover 11 swings. It moves with the movement.

[0009]

However, in the above-mentioned conventional telescopic arm type automatic dust remover, the chains 18 and 22 may stretch during use, the durability is low, and the counterweights 35 and 36 are provided. Because I need
The weight of the telescopic arm type automatic dust remover 11 is increased.

The present invention can solve the problems of the conventional automatic telescopic arm type dust remover and lower the height.
It is an object of the present invention to provide a telescopic arm type automatic dust remover that has a simple structure, high durability, and a small weight.

[0011]

To this end, in the telescopic arm type automatic dust remover of the present invention, an upper arm that is inclined and arranged on the main body frame and a slidable arrangement with respect to the upper arm are provided. And a rake slidably arranged with respect to the lower arm. Further, it has first elevating means for elevating the lower arm with respect to the upper arm, and second elevating means for elevating the rake with respect to the lower arm.

The second elevating means includes a pair of rotating bodies rotatably disposed on the upper and lower portions of the lower arm,
It comprises a transmission member which is stretched between the rotating bodies and at least one point of which is fixed to the upper arm. In another telescopic arm type automatic dust remover of the present invention, the first elevating means is a pin rack type elevating means.

In still another telescopic arm type automatic dust remover of the present invention, the second elevating means is a wire rope type elevating means. In still another telescopic arm type automatic dust remover of the present invention, a rake opening / closing device for swinging the upper arm, a direction changing member disposed at an upper end of the upper arm, and a raising / lowering unit behind the direction changing member. And a counterweight that is freely arranged.

One end is fixed to the lower arm,
The power transmission member extends along the upper arm, has its direction changed by the direction changing member and extends rearward, and has the other end fixed to the counterweight.

[0015]

According to the present invention, in the telescopic arm type automatic dust remover, the upper arm slantedly arranged on the main body frame, and the lower arm slidably arranged with respect to the upper arm, And a rake slidably arranged with respect to the lower arm. Further, it has first elevating means for elevating the lower arm with respect to the upper arm, and second elevating means for elevating the rake with respect to the lower arm.

The second raising / lowering means includes a pair of rotating bodies rotatably arranged on the upper and lower portions of the lower arm,
It comprises a transmission member which is stretched between the rotating bodies and at least one point of which is fixed to the upper arm. In this case, since one point of the transmission member is fixed to the upper arm, when the lower arm is moved up and down by a predetermined stroke by the first elevating means, the rake is moved up and down by the same stroke with respect to the lower arm. The amount of elevation of the rake with respect to the dust removal screen is equal to the stroke of the lower arm plus the stroke of the rake with respect to the lower arm.

In another telescopic arm type automatic dust remover of the present invention, the first elevating means is a pin rack type elevating means. In this case, since the pin rack and the pinion mesh with each other, the lower arm can be moved up and down by rotating the pinion. In still another telescopic arm type automatic dust remover of the present invention, the second elevating means is a wire rope type elevating means. In this case, a pair of rotating bodies is rotatably arranged on the upper and lower portions of the lower arm, a wire rope is stretched between the rotating bodies, and at least one point of the wire rope is fixed to the upper arm.

In still another telescopic arm type automatic dust remover of the present invention, a rake opening / closing device for swinging the upper arm, a direction changing member provided at an upper end of the upper arm, and a direction changing member of the direction changing member. And a counterweight arranged so as to be able to move up and down. Also, the transmission member has one end fixed to the lower arm, extending along the upper arm, the direction being changed by the direction changing member and extending rearward, and the other end being fixed to the counterweight.

In this case, by raising and lowering the counter weight, the lower arm can be raised and lowered along the upper arm and the upper arm can be swung.

[0020]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a side view of a telescopic arm type automatic dust remover according to an embodiment of the present invention, FIG. 4 is a front view of an telescopic arm type automatic dust remover according to an embodiment of the present invention, and FIG. 5 is a wire rope of an embodiment of the present invention. FIG.

In the figure, 40 is a water channel, 41 is the water channel 4.
0, a dust-removing screen, 43 and 44 are rails installed over a plurality of water channels 40, and 45 is a main body frame movably arranged on the rails 43 and 44,
Reference numeral 46 is a dust remover main body disposed on the main body frame 45, and 47 is the dust remover main body 46.
1 is a conveyor that carries out the residue removed from 1.

Next, the dust remover body 46 will be described.
In this case, the dust remover main body 46 includes an upper arm 52, a lower arm 53, a rake 54, a telescopic drive device 55, a pin rack 57, a wire rope 58, a counter weight 60, a rake opening / closing device 62, and the like. The rake 54 is moved by the first pin rack type lifting means.
Is moved up and down by the wire rope type second elevating means. The extension / contraction drive device 55 is composed of a motor, a speed reducer, etc., which are not shown.

The upper arm 52 has a "U" -shaped cross section, and is arranged with two left and right slanting members. The lower arm 53 is slidably arranged inside the upper arm 52. . The sliding surface between the upper arm 52 and the lower arm 53 is coated with a nylon (trade name) resin material in order to improve sliding. The lower arm 53 also has a U-shaped cross section, and a rake 54 is slidably disposed inside the lower arm 53. A pin rack 57 is attached to each lower arm 53 over the entire length so that the pin rack 57 and the pinion 65 mesh with each other. On the other hand, the extension drive device 55 is connected to the pinion 65 via a roller chain 66, and by driving the extension drive device 55, the pinion 65 can be rotated and the lower arm 53 can be moved up and down.

By the way, the rake 54 can be raised and lowered via a wire rope 58. The wire ropes 58 are disposed one on each side of the dust remover main body 46, and each wire rope 58 has an upper rope member 58.
a and a lower rope member 58b. Further, a horizontal bar 68 is installed between the left and right upper arms 52, and a horizontal bar 69 is installed between the left and right rakes 54, and an upper rope vehicle 7 as a rotating body is mounted on the upper and lower ends of the lower arm 53.
1 and the lower rope wheel 72 are rotatably arranged.

One end of the upper rope member 58a is fixed to the horizontal bar 68 and the other end thereof is fixed to the horizontal bar 69, and one end of the lower rope member 58b is fixed to the horizontal bar 68 and the other end thereof is fixed to the horizontal bar 68. It becomes endless by being fixed to the direction bar 69, and the upper rope wheel 71 and the lower rope wheel 72
It is stretched between and to form a transmission member. Therefore,
Since one ends of the upper rope member 58a and the lower rope member 58b are fixed to the lateral bar 68, when the lower arm 53 is moved up and down by the stroke S by driving the telescopic drive device 55, the rake 54 moves to the lower arm. 5
It is moved up and down by the same stroke S with respect to 3. In this case, the amount of raising and lowering of the rake 54 with respect to the dust removing screen 41, that is, the amount of scraping (scraping) is determined by the lower arm 5.
The stroke S of 3 is added to the stroke S of the rake 54 with respect to the lower arm 53, that is, twice the stroke S.

Therefore, the height of the telescopic arm type automatic dust remover can be lowered correspondingly, and the structure can be simplified. It should be noted that a roller chain type lifting means can also be used as the second lifting means. Also in this case, the amount of lifting can be doubled of the stroke S of the lower arm 53. When the first elevating means is a pin rack type elevating means and the second elevating means is a wire rope type elevating means, the pin rack 57 does not extend in the first pin rack type elevating means and In the second rope type elevating means, when the wire rope 58 extends, the extension can be eliminated by tightening a tightening screw (not shown), so that the durability of the telescopic arm type automatic dust remover can be improved. .

A guide roller 75 is arranged at the tip of the rake 54. Therefore, at the time of scooping, the tip of the rake 54 is applied to the dust removing screen 41 by the guide roller 75, so that scooping performance can be improved. By the way, the upper arm 52 has a substantially central portion supported by the main body frame 45 via the pin hinge portion 76, and the dust remover main body 46 can be swung with respect to the main body frame 45. for that reason,
The upper end of the upper arm 52 and the rake opening / closing device 62 are connected by a rope 77, and by operating the rake opening / closing device 62, the rope 77 can be wound or unwound.

Therefore, when the rake 54 is lifted up and lifted, the rake opening / closing device 62 is operated to rewind the rope 77 and the dust remover main body 46 is rotated counterclockwise in the figure, and the tip of the rake 54 is rotated. Can be applied to the dust removal screen 41. On the other hand, when lowering the rake 54, the rope 77 is wound by operating the rake opening / closing device 62, and the dust remover main body 46 is rotated clockwise in the drawing.
The tip of the rake 54 and the guide roller 75 can be separated from the dust removing screen 41.

Further, the expansion / contraction driving device 55 and the rake opening / closing device 6 are opposed to the weights of the lower arm 53 and the rake 54.
In order to reduce the driving force of 2, the counter weight 60
Is arranged. Then, a rope 79 as a transmission member is arranged, one end of the rope 79 is fixed to the upper end of the lower arm 53, and the other end is fixed to the counterweight 60. In this case, the rope 79 extends along the upper arm 52, extends rearward (to the right in the drawing) via the rope wheel 80 as a direction changing member, and extends downward through the rope wheel 81 as a direction changing member. Therefore, as the lower arm 53 is moved up and down along the upper arm 52,
Further, as the dust remover body 46 is swung, the counterweight 60 moves up and down.

A weight guide 82 is provided for preventing the counterweight 60 from swinging and for preventing danger, and the counterweight 60 moves up and down in the weight guide 82. As described above, since only one counter weight 60 needs to be provided in order to reduce the driving force of the telescopic drive device 55 and the rake opening / closing device 62, the weight of the telescopic arm type automatic dust remover can be reduced.

An apron 85 is arranged at the upper end of the dust removing screen 41, and the residue scraped up by the rake 54 is discharged to the conveyor 47 via the apron 85. Next, the operation of the telescopic arm type automatic dust remover having the above configuration will be described. First, when the extension / contraction drive device 55 is driven and the pinion 65 is rotated via the roller chain 66, the lower arm 53 is moved up and down by the engagement of the pinion 65 and the pin rack 57. At this time, since one ends of the upper rope member 58a and the lower rope member 58b of the wire rope 58 are attached to the lateral bar 68, the rake 54 moves up and down with respect to the lower arm 53.

In this case, when the lower arm 53 is moved up and down by the stroke S, the rake 54 moves to the lower arm 5.
3 is moved up and down by the same stroke S, and the amount of the rake 54 lifted is twice the stroke S.
Further, the ascending / descending speed of the rake 54 with respect to the dust removing screen 41 is twice the ascending / descending speed of the lower arm 53.

At the time of scooping, the main body 46 of the dust remover is rotated clockwise by the rake opening / closing device 62, and the rake 54 is removed by the dust removing screen 4.
Move along 1. Further, when the rake 54 descends, the dust remover main body 46 is rotated counterclockwise in the figure by the rake opening / closing device 62, and the rake 54
Moves away from the dust screen 41. Note that these series of operations are performed sequentially.

In this way, when dust removal from one water channel 40 is completed, the tip of the rake 54 is moved above the pond surface of the facility to remove dust from the other water channel 40, and the main body frame 45 is moved to the rail 43. , 44.
The present invention is not limited to the above embodiment,
Various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

[0035]

As described above in detail, according to the present invention, in the telescopic arm type automatic dust remover, the upper arm slantedly arranged on the main body frame and the sliding operation with respect to the upper arm. It has a lower arm freely arranged and a rake slidably arranged with respect to the lower arm.

Further, it has first elevating means for elevating the lower arm with respect to the upper arm and second elevating means for elevating the rake with respect to the lower arm. The second elevating means is a transmission member that is stretched between a pair of rotating bodies rotatably arranged on the upper and lower portions of the lower arm and between the rotating bodies, and at least one point is fixed to the upper arm. It consists of and.

In this case, since one point of the transmission member is fixed to the upper arm, when the lower arm is moved up and down by a predetermined stroke by the first elevating means, the amount of the rake lifted will be equal to the stroke of the lower arm. Doubles.
Therefore, the height of the telescopic arm type automatic dust remover can be lowered correspondingly, and the structure can be simplified.

In another telescopic arm type automatic dust remover of the present invention, the first elevating means is a pin rack type elevating means. In this case, since the pin rack and the pinion are engaged with each other, the pin rack does not extend. Therefore, the durability of the telescopic arm type automatic dust remover can be improved. In still another telescopic arm type automatic dust remover of the present invention, the second elevating means is a wire rope type elevating means. In this case, when the wire rope extends, the extension can be eliminated by tightening the tightening screw. Therefore, the durability of the telescopic arm type automatic dust remover can be improved.

[0039] In still another telescopic arm type automatic dust remover of the present invention, a rake opening / closing device for swinging the upper arm, a direction changing member disposed at an upper end of the upper arm, and a direction changing member of the direction changing member. And a counterweight arranged so as to be able to move up and down. Also, the transmission member has one end fixed to the lower arm, extending along the upper arm, the direction being changed by the direction changing member and extending rearward, and the other end being fixed to the counterweight.

In this case, by raising and lowering the counter weight, the lower arm can be raised and lowered along the upper arm and the upper arm can be swung. Therefore, since only one counter weight is required to reduce the driving force of the first elevating means and the rake opening / closing device, the weight of the telescopic arm type automatic dust remover can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a telescopic arm type automatic dust remover according to an embodiment of the present invention.

FIG. 2 is a schematic view of a conventional telescopic arm type automatic dust remover.

FIG. 3 is a perspective view of a conventional telescopic arm type automatic dust remover.

FIG. 4 is a front view of the telescopic arm type automatic dust remover in the embodiment of the present invention.

FIG. 5 is an explanatory diagram of a wire rope according to an embodiment of the present invention.

[Explanation of symbols]

 45 body frame 52 upper arm 53 lower arm 54 rake 58a upper rope member 58b lower rope member 60 counter weight 62 rake opening / closing device 71 upper rope vehicle 72 lower rope vehicle 79 rope 80, 81 rope vehicle

Claims (4)

[Claims] 1. An (a) upper arm that is inclined and arranged on a main body frame, (b) a lower arm that is slidably arranged on the upper arm, and (c) a lower arm. A rake slidably disposed with respect to the rake; (d) first elevating means for elevating the lower arm with respect to the upper arm; and (e) second elevating the rake with respect to the lower arm. (F) The second elevating means has a pair of rotating bodies rotatably arranged on the upper and lower portions of the lower arm, and is stretched between the rotating bodies, and at least one point is provided. An expandable telescopic arm type dust remover comprising a transmission member fixed to an upper arm. 2. The telescopic arm type automatic dust remover according to claim 1, wherein the first elevating means is a pin rack type elevating means. 3. The telescopic arm type automatic dust remover according to claim 1, wherein the second elevating means is a wire rope type elevating means. 4. A rake opening / closing device for swinging the upper arm, (b) a direction changing member disposed at an upper end of the upper arm, and (c) being movable up and down behind the direction changing member. And (d) one end is fixed to the lower arm and extends along the upper arm, the direction is changed by the direction changing member to extend rearward, and the other end is the counter weight. The telescopic arm type automatic dust remover according to claim 1, further comprising a transmission member fixed to the.