JP3047314U - Dust remover - Google Patents

Abstract

(57) [Summary] (With correction) [Problem] To reduce the height above a slab and increase stability and reduce the weight of a rake beam and the like. A screen (4) of a frame (10) provided in a water channel (1).
A rake beam holding frame 11 is disposed at an upper position so as to be swingable back and forth through a horizontal shaft 13.
1, the upper beam 16, the middle beam 17, and the lower beam 1, which are guided inside and move up and down by a lifting drive means.
8 are slidably combined to form a telescopic rake beam 23, the rake 24 is fixed to the lower end of the lower beam 18, and the middle beam 17 is an endless chain 39 or a rope wound around the upper beam 16 and a chain wheel. The endless chain 4 is moved up and down by an elevating drive mechanism consisting of
2 or a rope is wound around a chain wheel 32, 32 or a pulley, and the chain 42 is fixed to the lower end of the upper beam 16 and the upper end of the lower beam 18, respectively.

Description

[Detailed description of the invention]

[0001]

[Technology to which the invention belongs]

 The present invention relates to a dust remover that scrapes and removes dust and the like that have flowed to a dust screen installed at a water pump of a water supply / sewer system, a water channel of a sewage treatment plant, or an intake of a river.

[0002]

[Prior art]

 Conventionally, as this type of dust remover, a rake guide frame is disposed above a bar screen of a frame so as to be able to swing back and forth via a horizontal axis, and an elevating frame is provided inside the frame, and an upper end of the elevating frame is provided. A rake raising / lowering drive motor is provided in a section, and a rake that moves up and down along the lift frame is mounted on a lifting frame (see, for example, Japanese Utility Model Laid-Open No. 60-96430).

[0003]

[Problems to be solved by the invention]

 By the way, in the above-mentioned conventional technology, the weight of each frame including the rake is very large with respect to the amount of scraped-up dust, and the overall height is very high and unstable. There were problems such as high prices. The present invention has been made in view of the above-mentioned situation, and its purpose is to reduce the height above the slab and increase the stability, and to improve the weight, especially the frame, beam, An object of the present invention is to provide a dust remover capable of reducing the weight of a rake or the like.

[0004]

[Means for Solving the Problems]

 In the present invention, the following technical measures were taken to achieve the above object. In other words, the present invention was installed across the water channel etc. in a dust remover in which the garbage deposited on the grid-shaped dust screen provided in the water channel etc. was scraped up by a rake and carried out by a conveyor etc. A rake beam holding frame is disposed above the screen of the dust remover frame so as to be swingable in the front-rear direction with respect to the screen via a horizontal axis, and is guided inside the rake beam holding frame by the ascending and descending drive. An upper beam that moves up and down by means is provided, and the upper beam and the middle and lower beams are slidably combined to form a telescopic rake beam.A rake is attached to the lower end of the lower beam, and the middle beam is attached to the upper beam. The beam is lifted and lowered by the lifting drive mechanism provided on the beam. Wound through the pulleys, said chain or rope is characterized by being respectively fixed to the upper end of the lower end and the lower beam of the upper beam (claim 1).

[0005] According to the present invention, when the rake is lifted to scrape and remove debris, when the upper stage beam is raised by the elevation drive means, the intermediate stage beam is elevated by the elevation drive mechanism provided in the upper stage beam. Accordingly, the endless chain or rope wound around the middle beam rotates, and the middle and lower beams fixed to the endless chain or rope rise together with the rake and are deposited on the dust removal screen. At the same time, the upper beam is lifted by another driving means, and the trash on the rake is dropped on the unloading conveyor and unloaded.

When the rake reaches the ascending limit, the beam holding frame swings forward, the upper beam starts to descend, and at the same time, the middle and lower beams are pushed down by the elevation drive mechanism, so that the endless chain or rope is moved. It rotates in the opposite direction, and the rake descends with the lower beam. When the rake reaches the lower limit, the beam holding frame swings backward, the rake comes into contact with the dust-removing screen, and the beam at each stage is raised again by the lifting drive means and mechanism, and the rake resumes the scraping of debris. Is done.

[0007] Further, in the present invention, the lifting drive means includes a rack or a pin rack provided on a rear surface of the upper beam, a pinion provided on the rake beam holding frame coaxially with the horizontal axis, and a rotation of the pinion shaft. Since it is composed of a driving motor and a transmission mechanism, power transmission is performed efficiently and the structure is simplified (claim 2).

In the present invention, the lifting mechanism of the middle stage beam includes a chain wheel or a pulley provided on the upper and lower portions of the upper stage beam, and an endless chain or rope wound between the upper and lower chain wheels or the pulley. Since the chain or rope is fixed to the lower end of the holding frame and the upper end of the middle beam, respectively, the middle beam can be moved up and down following the ascending and descending of the upper beam, and the structure can be simplified and reduced in weight. (Claim 3).

Further, in the present invention, an upper beam guide roller is provided inside the rake beam holding frame, a middle beam guide roller is provided inside the upper beam, and a lower beam guide roller is provided inside the middle beam. In addition, the vertical movement of the telescopic beam is performed smoothly (claim 4). In the present invention, the horizontal shaft is rotatably attached to the dust remover frame and the rake beam holding frame, and the pinion is fixed to the horizontal shaft, so that the structure is simplified and the weight is reduced. (Claim 5).

[0010]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawing, (1) is a water channel, (2) is a water channel side wall, (3) is a slab, and (4) is a grid-shaped dust removing screen composed of a number of strip-shaped bars, which crosses between the water channel side walls (2). The slab (3) is provided so as to straddle the water channel (1) near the upper end downstream side of the screen (4). A rail (5) is laid on the top of the channel side wall (2) and the top of the slab (3) in parallel with the dust removal screen (4), and wheels (6) provided on the legs of the frame (10) can run freely. It is mounted.

In the frame (10), a front apron (7) is provided at the lower front end of the frame (10) so as to be extremely close to above the dust removing screen (4) and at the same inclination as the screen (4). A garbage receiving and unloading conveyor (8) is provided on the rear slab (3), and garbage is introduced between the upper end of the front plate (8A) and the upper end of the front apron (7) of the conveyor (8). A chute (9) is provided to constitute a relatively low frame (10).

On the frame (10), a rake beam holding frame (11) assembled in a square frame toward the front is moved forward and backward through a horizontal axis (13) parallel to the bearing (12) and the screen (4). A frame-swinging hydraulic (or electric) cylinder (14) is attached to the rear side via a pin (15) parallel to the horizontal shaft (13) so as to be able to swing forward and backward. The upper end of the rod of the cylinder (14) is pivotally attached to the rear upper end of the rear end of an arm (11A) extending from the rear upper end of the rake beam holding frame (11).

(16) is an upper stage beam, (17) is a middle stage beam, (18) is a lower stage beam, and guide rollers (19) and (20) so that these eight beams can slide on the lower stage side to the upper stage side. , (21), and (22), a telescopic beam (23) is constructed by vertically extending and contracting, and a rake (24) is attached to a lower end of the lower beam (18), and an upper beam (16) is provided. ) Are vertically movably fitted in the beam holding frame (11) via guide rollers (25) and (26) (see FIG. 4).

As shown in FIG. 5, the upper and middle beams (16) and (17) connect a pair of right and left vertical members (16A) and (17A) having a substantially U-shaped cross section to the left and right opposed inner sides. , Lower cross members (16B) and (17B), and the upper beam (16) has bearings (27) and (27), which are provided above and below the left and right vertical members (16A) and (16A). A horizontal shaft (28) is rotatably mounted on the middle beam (17), and bearings (29) provided at the upper and lower ends of the left and right vertical members (17A) and (17A) on the rear side of the middle beam (17). The horizontal shafts (30) are rotatably mounted on the shafts, and chain wheels (31) and (32) are fixed to the left and right ends of the horizontal shafts (28) and (30), respectively. .

Further, as shown in FIG. 5, the lower beam (18) connects the longitudinal members (18A) and (18A) having a rectangular cross section to the left and right inner sides and the lower horizontal member (18B). The rake (24) is fixed to the lower ends of the left and right vertical members (18A), (18A).

A rack (33) (which may be a pin rack or a chain) that constitutes a lifting drive means is attached to the rear surface of each longitudinal member (16A) of the upper beam (16). A pinion (34) fixed to the horizontal axis (13) of the rake beam holding frame (11) is engaged. The horizontal shaft (13) is rotatably supported via a bearing (12), and also serves as a pinion shaft that constitutes a lifting drive means. The horizontal shaft (13) is driven by an electric motor (or a hydraulic motor) (35) mounted on the frame (10) via chain wheels (36), (37) and a chain (38). It is designed to be driven.

An endless chain (39) is wound between the upper and lower chain wheels (31) provided on the upper beam (16), and the chain (39) is connected to the rake beam holding frame (11). It is fixed to the lower end (40) and fixed to the upper end of the middle beam (17) (41). The middle beam (17) is fixed by the horizontal axis (28), the chain wheel (31) and the chain (39). The up-and-down drive mechanism is configured so that the middle-stage beam (17) can be moved up and down following the up-and-down movement of the upper stage beam (16).

Further, an endless chain (42) is wound between the upper and lower chain wheels (32) provided on the middle stage beam (17), and the chain (42) is connected to the lower end of the upper stage beam (16). The lower beam (18) is fixed to the upper portion of the lower beam (18) and fixed to the upper end of the lower beam (18) by the horizontal shaft (30), the chain wheel (32) and the chain (42). A drive mechanism is configured so that the lower beam (18) is moved up and down following the up and down movement of the upper and middle beams (16) and (17).

In the above embodiment, when the rake (24) is raised from the rake lowering limit shown in FIGS. 1 and 2 to scrape up dust, the motor (35) is driven to move the upper beam (16). When it is raised, the middle and lower beams (17) and (18) follow the upper beam (16) at the same time via the middle beam raising and lowering drive mechanism and the lower beam lifting and lowering drive mechanism, and rise, and the rake ( 24) rises and scrapes up the refuse that has been deposited on the dust removal screen (4).

When the rake (24) debris is dropped on the conveyor (8) and the rake (24) reaches the upper limit and the dust is removed again, the hydraulic cylinder (14) is operated to hold the beam. When the frame (11) is swung forward and the motor (35) is operated to lower the upper beam (16), the middle beam (17) and the lower beam (18) are lowered together with the rake (24). I do. When the rake (24) reaches the lower limit, the hydraulic cylinder (14) is operated to swing the beam holding frame (11) backward to remove the rake (24) together with the telescopic beam (23) and the dust removing screen (4). ) Is moved backward toward the screen (4), and then the telescopic beam (23) is raised together with the rake (24) by the above-mentioned operation, so that dust can be removed repeatedly. .

The present invention is not limited to the above embodiment. For example, the lifting / lowering drive mechanism of the middle stage beam (17) can be replaced with a hydraulic cylinder device, and further, instead of the cylinder device, an electric power cylinder is used. Alternatively, a spindle type elevating device can be employed, and two pairs of telescopic beams (23) can be provided on the left and right, and the other frame carrier can be a stationary frame.

[0022]

[Effect of the invention]

 As described above, this invention is installed across a waterway etc. in a dust remover in which garbage deposited on a grid-like dust screen provided in a waterway etc. is scraped up by a rake and carried out by a conveyor etc. A rake beam holding frame is disposed above the screen of the removed dust remover frame via a horizontal axis so as to be swingable in the front-rear direction with respect to the screen, and is guided inside the rake beam holding frame to ascend. An upper beam that moves up and down by the descending drive means is provided, and the upper beam and the middle and lower beams are relatively slidably combined to form a telescopic rake beam. A rake is attached to the lower end of the lower beam, and the middle beam is It is raised and lowered by the lifting drive mechanism provided on the upper beam, and the middle beam is chained with an endless chain or rope over almost the entire length. The rake is wound by a pulley or pulley, and the chain or rope is fixed to the lower end of the upper beam and the upper end of the lower beam, respectively. The height of the slab top can be significantly reduced, and the telescopic beam reduces the weight of the telescopic beam relative to the amount of dust scraping, thus reducing the overall weight. Since it is possible to greatly reduce the number of frames and the frame, the stability of the dust remover can be increased, and the cost can be reduced (claim 1).

According to the invention as set forth in claim 2, the elevating / lowering drive means includes a rack or a pin rack provided on a rear surface of the upper beam, and a pinion provided on the rake beam holding frame coaxially with the horizontal axis. And a motor and a transmission mechanism for rotationally driving the pinion shaft, the structure of the lifting drive means can be simplified, and the rake can be easily and reliably pushed into the water. In addition, it is possible to smoothly swing the rake beam holding frame back and forth.

According to the invention described in claim 3, the mechanism for raising and lowering the middle beam is wound around a chain wheel or pulley provided on the upper and lower portions of the upper beam and between the upper and lower chain wheel or pulley. Since it is made of an endless chain or rope, and the chain or rope is fixed to the lower end of the holding frame and the upper end of the middle beam, respectively, the structure is simple, the operation is reliable, and the weight is reduced. Can be planned.

According to the invention as set forth in claim 4, an upper beam guide roller is provided inside the rake beam holding frame, a middle beam guide roller is provided inside the upper beam, and a lower beam guide roller is provided inside the middle beam. Therefore, it is possible to smoothly and reliably perform the contraction operation of the telescopic beam.

Further, according to the invention of claim 5, the horizontal axis is rotatably mounted on the dust remover frame and the rake beam holding frame, and the pinion is fixed to the horizontal axis. The structure is simple, power can be transmitted, and the front and rear swing of the rake beam holding frame can be smoothly and reliably performed, and the weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention as viewed from an upstream side.

FIG. 2 is a partially cutaway right side view of FIG.

FIG. 3 is a central vertical sectional side view showing the telescopic rake beam in the embodiment.

FIG. 4 is an enlarged view of a portion A in FIG. 2;

FIG. 5 is an enlarged cross-sectional view taken along line BB of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterway 4 Dust removal screen 8 Conveyor 10 Frame 11 Rake beam holding frame 13 Horizontal axis 16 Upper beam 17 Middle beam 18 Lower beam 19-22 Beam guide roller 23 Telescopic rake beam 24 Rake 25, 26 Beam guide roller 28, 30 Horizontal axis 31, 32 Chain car 33 Rack 34 Pinion 35 Motor 36,37 Chain car 38,39,42 Endless chain 40,41,43,44 Adhesion (part)

Claims (5)

[Utility model registration claims] 1. A dust remover which is disposed across a water passage or the like in a dust remover in which garbage deposited on a grid-shaped dust removal screen provided in a water passage or the like is scraped up by a rake and carried out by a conveyor or the like. A rake beam holding frame is disposed above the screen of the frame so as to be swingable in the front-rear direction with respect to the screen via a horizontal axis. The rake beam holding frame is guided inside the rake beam holding frame, and is vertically moved by an elevation drive means. A movable upper stage beam is provided, and the upper stage beam and the middle and lower stage beams are relatively slidably combined to form a telescopic rake beam, a rake is attached to the lower end of the lower stage beam, and the middle stage beam is mounted on the upper stage beam. It is raised and lowered by the drive mechanism, and an endless chain or rope is attached to the middle stage beam through a chain wheel or pulley for almost the entire length. The chain or the rope is fixed to the lower end of the upper beam and the upper end of the lower beam, respectively. 2. A rack or a pin rack provided on a rear surface of the upper beam, a pinion provided on the rake beam holding frame coaxially with the horizontal axis, a motor rotating the pinion shaft, and a motor. The dust remover according to claim 1, comprising a transmission mechanism. 3. The elevation drive mechanism for the middle beam comprises a chain wheel or pulley provided on the upper beam at upper and lower portions thereof, and an endless chain or rope wound around the upper and lower chain wheel or pulley. The dust remover according to claim 1, wherein a chain or a rope is fixed to a lower end of the holding frame and an upper end of the middle beam, respectively. 4. An upper beam guide roller is provided inside the rake beam holding frame, a middle beam guide roller is provided inside the upper beam, and a lower beam guide roller is provided inside the middle beam. The dust remover according to claim 1, 2 or 3. 5. The dust remover according to claim 2, wherein the horizontal shaft is rotatably attached to a dust remover frame and a rake beam holding frame, and a pinion is fixed to the horizontal shaft.