JPS6380806A - Settled grit scraper - Google Patents

Abstract

PURPOSE:To prevent settled grit scraping buckets and an endless chain from being buried in large amounts of settled grit abnormally introduced into a grit chamber by constituting lower and intermediate sprockets wherein the endless chain fitted with the settled grit scraping buckets is stretched so that the sprockets ascend or descend. CONSTITUTION:In case the amount of grit introduced into a sand reservoir is increased with rain or the like, an elevator 54 is actuated to lift a lower horizontal joining bar 41 and an intermediate horizontal joining bar 36. Then a first and a second lower sprockets 42, 43 provided to both end sides of the bar 41 are vertically moved. Thereby the amount of grit to be scraped with buckets 48 fitted to an endless chain 47 is adjusted and these are prevented from being overloaded.

Description

[Detailed Description of the Invention] [Industrial Applications] This invention relates to a sediment scraping machine for scraping up sand deposited in a settling basin, and particularly to prevent burying of buckets and chains due to an abnormally large amount of sand flowing into the settling basin. This prevents problems such as the chain coming off.

[Conventional technology]

FIG. 3 is a schematic configuration diagram showing a conventional sand settling and scraping machine. In the figure, (1) is a sand basin, which is provided at the bottom of a sand settling basin (2). The bottom surface of this sand pool (1) has an inclination on the flowing water side and the outflow side, which indicate the flow direction with arrow A. (3) is a shaft, which is rotatably supported by a bearing (4) fixed relatively below the side wall of the sand settling basin (2). (5) is a head lever fixed to the shaft (3), and a head chain 1c (6) is rotatably supported at the outer end. (7) is a head lever that is compatible with the head lever (5). It is a head operation lever fixed to a shaft (3) at an angle of , and one end of a connecting rod (8) is swingably attached to the end of the lever.(9) is a tail part. It is a chain wheel and is rotatably attached to the outside of the tail lever. 0υ is a tail operation lever, which is fixed to the shaft Q21 together with the tail lever 00) at an appropriate angle with the tail lever. ing. This shaft Q2+ is rotatably supported by a bearing (4) fixed to the side wall (2a) of the sand settling basin (2).

Further, the tail operating lever circle is swingably attached to a connecting rod (8), and its upper end is connected to the lifting device having a rod (+3a) that can freely move 11II'iA. The circle is a deflection prevention rod that is swingably attached to an appropriate position on the connecting rod (8), and synchronizes with the swing angle of the head operating lever (7) and the tail operating lever αυ. The chain wheel is installed in the machine frame aη above the settling basin (2) of TFFIFILJl. (to) is a chain wheel, and a settling pond (
2) is provided at an intermediate position. 0 spring, ■ is a chain 1) which is rotatably attached to the shafts (3) and 2 (2), respectively, and these chain wheels Q9), 121 and the chain wheel (6119) are the vertices. It is made up of a parallelogram. Qυ is an endless chain with chain wheels (6], (
91, QEQ, shout, 0 group, (suspended to 11■, and multiple buckets (sha) at appropriate intervals along the entire length
is equipped with. Number four is a conveyor.

A conventional sand scraper is constructed as described above. For example, when the chain Qυ is driven by the drive device (A) and circulated in the direction of arrow B, the bucket attached to the chain CD moves into the sand pool (1). The sand deposited in the sand basin is successively scraped up and discharged above the settling basin (2), but due to rain etc., it flows into the sand basin (1). When the amount of sand increases, the lifting device is operated manually, hydraulically, electrically, etc., and the tail operation lever OB is rotated and the shaft (3) is moved through the connecting rod (8). Rotate the head control lever (7) to the inflow side around . Due to this rotation of the lever 0υ, (7), the chain wheels (61, (91) attached to the outer ends of the tail lever α0 and the head lever (5) move upward, and the bucket 1-(
The amount of sand to be scraped is adjusted by the company, and overload is prevented. In addition, when you stop driving, please use chained cars (6
), (As shown at 91, the top surface (a) of the sand pool (1)
If the bucket I-11 is raised higher than the bucket I-11, even if sand flows into the sand pool (1) due to rain or other reasons during suspension of operation, the bucket I-11
The vehicle will not become buried, and you can immediately start driving at any time. If the sedimentation further decreases, contrary to the above, gradually lower the chain wheel (61, (9+) downward via the lifting device θ, and resume normal operation at the position shown by the solid line on the outer chain wheel. Become.

[Problem that the invention seeks to solve]

In the conventional sand scraping machine as described above, two pairs of bearings f4) are provided at appropriate intervals on the side wall of the sand settling basin (1).
4), t4] (4) respectively have a shaft (3) rotatably supported on the side, one shaft (3) extends toward the settling basin (1), and a head lever (5) extends upward. The head control lever (7) is fixed, and the tail part l, bar 00) extending toward the sand settling basin (1) and the tail part control lever circle extending upward are fixed to the other shaft U2, and the head lever (5) is fixed. and tail lever~(
Sprockets I-(5) and +91 are rotatably attached to the outer ends of the 101 near the bottom of the sand settling basin, and sprockets I-091 and (2) are coaxially attached to the two shafts (31, Q2), respectively. ) is rotatably attached, an endless chain QB with a plurality of buckets attached to these sprockets is suspended, and a connecting rod (8) that links the operations of these levers is connected to the head-operated lever (7). It is connected to the tail operation lever aυ, and the head lever (5) and the tail lever αω are linked and cannot be rotated by the lifting device port 3).This rotation causes the head lever (5) and the tail lever (+01 Sprocket (6) attached to the outer end.

Since (9) is intended to be raised and lowered, the head lever (
6) and the sprocket attached to the outer end of the tail lever 00) 1. (61, (91 rising height is the lifting device 03
) is small due to the stroke of the rod (13al), and when the amount of sand flowing into the settling basin (1) exceeds the planned amount due to rain etc., the surface sand flows into the settling basin (1) and settles. There was a problem in that there was a risk that the bucket, head lever (6), and part of the tail lever QOI would be buried.

In addition, the sprocket l-f located near the bottom of the sand settling basin
6) (Since the elevation of 91 is achieved by the rotation of the head lever (5) and tail lever port 0), the horizontal movement distance that occurs when these sprockets l-f6) and f91 rise is large. The problem was that the size of the settling basin (1) was required to accommodate the horizontal movement distance of the sprocket (6) and f91, which caused a lot of waste, and the arrangement of other equipment was also subject to certain restrictions.

This invention has been made to solve these problems, and includes increasing the rising height of the sprocket disposed near the bottom of the sand settling basin and reducing the horizontal movement distance.
To obtain a sand raking machine that can be operated at high efficiency at all times and can be manufactured at low cost.

[Means for solving problems]

The sand scraping machine according to the present invention includes two shafts provided at a predetermined interval above the side wall of a sand settling basin, an upper sprocket 1- rotatably attached to each of the two shafts, and an upper sprocket 1- which is rotatably attached to each of the two shafts. An upper vertical connecting rod rotatably connected to the shaft, an intermediate horizontal connecting rod whose both ends are rotatably connected to the lower ends of the upper vertical connecting rod, and both ends of the intermediate horizontal connecting rod and the lower vertical connecting rod. An intermediate sprocket rotatably attached to each connecting part at the lower end of the connecting rod, a lower vertical connecting rod rotatably connected to both ends of the intermediate horizontal connecting rod, and settling of these lower vertical connecting rods. The lower horizontal connecting rod has both ends rotatably connected to the lower end located near the bottom of the pond, and is rotatably attached to each connecting part of both ends of the lower horizontal connecting rod and the lower end of the lower vertical connecting rod. The lower sprocket is opened between the lower sprocket, the rotation direction regulating means for regulating the rotation direction of the upper vertical connecting rod in one direction, and the lower sprocket on one side and the intermediate sprocket.
A cross between the middle sprocket and the upper sprocket, a cross between the lower sprocket and the middle sprocket on the other side, a cross between the middle sprocket and the upper sprocket, and a cross between the lower sprockets! ! ! Drive the endless chain with multiple buckets) and the endless chain! The device is configured to include a driving source for moving the lower horizontal connecting rod and a lifting means for lifting and lowering the lower horizontal connecting rod.

[Effect]

In this invention, when the lower sprocket is located near the bottom of the sand settling basin, the endless chain is driven by a drive source when descending, and the bucket attached to the endless chain sequentially scrapes off the sand that is deposited in the sand basin. It ascends and discharges the sediment above the settling basin.

When a large amount of sand flows into the sand basin of the sand settling basin, by operating the lifting device to raise the descending horizontal connecting rod, the lower vertical connecting rod and the upper vertical connecting rod can be moved in one direction by the intermediate horizontal connecting rod. The lower and intermediate horizontal connecting rods move horizontally as they rotate, being regulated by the rotational direction regulating means, and the lower and intermediate horizontal connecting rods rise until adjacent to the upper sprocket 1-, and the lower and intermediate horizontal connecting rods located at both ends of the lower and intermediate horizontal connecting rods move horizontally. Sprocket and intermediate sprocket rise significantly.

〔Example〕

FIG. 1 (schematic configuration diagram showing a state in which the lower sprocket is located near the bottom of the sand settling basin in an embodiment of the present invention;
FIG. 2 is a schematic configuration diagram showing an embodiment similar to FIG. 1, with the lower sprocket positioned above the settling basin.

In the figure, (1) is a sand basin, which is installed at the bottom of the sand settling basin (2). The bottom surface of this sand pool (1) has an inclination on the flowing water side and the outflow side, which indicate the flow direction with arrow A. 131. Clυ are two shafts, and two pairs of bearings f4) (41, +
41 (4), each of which is rotatably supported. (
32) is the first upper spl'lket rotatably attached to the shaft ell on the flowing water side, and (33) is the shaft 0 on the outflow side.
'A second upper sprocket rotatably attached to IJ; (34) is a first sprocket rotatably connected to shaft I3G;
(35) is a second upper vertical connecting rod rotatably connected to the shaft Oil; (36) is an intermediate horizontal rod, both ends of which are connected to the first and second upper vertical connecting rods; Stick (34
).

(35) are rotatably connected to the lower end portions thereof. (37) is a first intermediate sprocket rotatably attached to the connecting portion between one end of the intermediate horizontal connecting rod (36) and the lower end of the first upper vertical connecting rod (34); (38) is the intermediate horizontal connecting rod; The other end of the rod (36) and the second upper vertical connecting rod (
The second intermediate sprocket is rotatably attached to the connecting part at the lower end of (35), (39) is the intermediate horizontal connecting rod (
A first lower vertical connecting rod (40) is rotatably connected to one end of the intermediate horizontal connecting rod (36), and a second lower vertical connecting rod (40) is rotatably connected to the other end of the intermediate horizontal connecting rod (36). , (41) are lower horizontal connecting rods, both ends of which are rotatably connected to the lower ends of the first and second lower vertical connecting rods (39) and (40), respectively. (42) is the lower horizontal connecting rod (
A first lower sprocket is rotatably attached to the connecting portion between one end of the lower horizontal connecting rod (41) and the lower end of the first lower vertical connecting rod (39); a second lower sprocket (4) rotatably attached to a connecting portion at the lower end of the lower vertical connecting rod (40) of
4) is a first hinge means for rotatably connecting one end of the intermediate horizontal connecting rod (36), the first upper vertical connecting rod (34), and the first lower vertical connecting rod (39) to each other; This hinge means (44) is connected to the first upper and lower vertical connecting rods (34).
) and (39) are provided with a rotation direction regulating means (not shown) for regulating the rotation direction of (39) in one direction. (45) connects the other end of the intermediate horizontal connecting rod (36) with the second upper vertical connecting rod (3
5) and the second lower vertical connecting rod (40) are rotatably connected to each other;
5) are the second upper and lower vertical connecting rods (35), (
40) is equipped with a rotation direction regulating means (not shown) for regulating the rotation direction in one direction. (47) is an endless chain, and the first upper sprocket 1. (32), first intermediate sprocket I- (37), first lower sprocket L-
(421, second lower sprocket (43), second intermediate sprocket (38), second upper sprocket 1, (
33), and a plurality of buckets (48) are attached at appropriate intervals along the entire length. The way this endless chain (47) is connected is to connect the second lower thread 11 (11) on one side (left side in the figure) that is lined up vertically.
3) and the second intermediate sprocket I-(38), and a cross between the intermediate sprocket L-(38) and the second upper sprocket +-(33) on the other side (Fig. There is a cross between the first lower sprocket (42) and the first intermediate sprocket (37) (on the right side), and the intermediate sprocket (37) and the first upper sprocket
- (32) are crossed with the first and second lower sprockets (42).

(43) are strained to be open to each other.

(49) is the machine frame, (50) is the bucket! - (48) is a conveyor that discharges the sand inside, (51) and (52) are sprockets, and (53) is a driving device, which is an electric motor! rlb Iso, (54) is M motive, (55) which constitutes a part of the lifting device.
) is a lifting device (5) connected to the lower horizontal connecting rod (41).
4).

In the sand raking station configured as described above, for example, when the endless chain (47) is driven by the drive device (53) and circulated in the direction of arrow B, the endless chain (47)
The bucket attached to the sand pool (1) of the sand settling basin (2)
) The sediment that has accumulated in the sedimentation basin (
2) Continuously perform the operation of discharging the sediment above. When the amount of sand flowing into the sand pool 11 increases due to rain, etc., the lifting device (54) is operated to raise the lower horizontal connecting rod (41) and the intermediate horizontal connecting rod (36).
), the first and second lower sprockets (42) provided at both ends of the lower horizontal connecting rod (41)
) and (43) move up and down, and the risk of sand being scraped by the bucket (48) is adjusted to prevent overload.

In addition, when the operation of the ζ sand settling and scraping machine is suspended, the lifting device (
54) to raise the lower horizontal connecting rod (4) to a position adjacent to the first and second upper sprockets 1. (32) and (33), as shown in Figure 2.
The lower vertical connecting rods (39), (40) and the lower vertical connecting rods (42), (43) are connected to the first and second hinge means (
Lower sprockets (42) and (43) are provided at both ends of the lower horizontal connecting rod (41) and rotate in one direction under the control of the rotation direction regulating means of 44) and (45).
The intermediate sprockets L-(37) and (38) provided at both ends of the intermediate horizontal connecting rod (36) are fixed to the upper sprocket (32).

It rises significantly to a position adjacent to (33). At this time, the intermediate horizontal connecting rod (36) is connected to the lower vertical connecting rod (39).
.

(40) and the upper vertical connecting rods (34) and (35) are regulated by the rotation direction regulating means of the first and second Hinle means (44) and (45) and rotate in one direction. The upper surface of the sand pool (1) (a)
The amount of horizontal movement up to this point is extremely small. Therefore, the settling basin (2
) when determining the size of the lower sprocket (42).
, leave the horizontal movement distance of (43): J! There is no need to consider it. In this way, the lower Subrono r-(42)
, (43) and intermediate sprocket (37) , (
38) is the fixed upper sprocket l-(32),
(33), even if an unexpectedly large amount of sand flows into the sand pool (1) due to heavy rain during suspension of operation, the bucket (48) and the lower sprocket (42) ), (43) will no longer be buried, and operation can be started immediately at any time.

Furthermore, if the sedimentation decreases, contrary to the above, the lifting device (
54) to lower the lower horizontal connecting rod (41), connecting the lower sprockets (42) and (42) provided at both ends of the lower horizontal connecting rod (41) and the intermediate horizontal connecting rod (36). ) Intermediate slots 1 provided at both ends of
- Gradually lower (37) and (38) downward,
Just drive normally.

In addition, the lifting device (54) is operated to raise the lower horizontal connecting rod (41), and the lower vertical connecting rod (39), (
40) and the upper vertical connecting rods (34) and (35) to connect the lower sprockets (42) and (43) provided at both ends of the lower horizontal connecting rod (41) and the intermediate horizontal connecting rod. When the intermediate sprockets (37) and (38) installed at both ends of (36) are raised, the endless chain (47) suspended from these sprockets
is open between the lower sprocket (43) and the intermediate sprocket (38) on one side (left side in the figure) that are arranged vertically, and is crossed between the intermediate sprocket (38) and the upper sprocket I-(33). There is a cross between the lower sprocket L-(42) on the other side (right side in the figure) and the intermediate sprocket (37), and a cross between the intermediate sprocket I-(37) and the upper sprocket L-(32). Since the hook is turned around the cross, the endless chain (47) is difficult to come off.

〔Effect of the invention〕

As explained above, the present invention operates the lifting device to raise the lower horizontal connecting rod when the lower sprocket is located near the bottom of the sand settling basin and is in an operating state when the lower sprocket is lowered to suspend operation. and an upper vertical connecting rod rotatably connected between the two shafts to which the upper sprocket is attached and the intermediate horizontal connecting rod, and a rotatable connecting rod between the intermediate horizontal connecting rod and the upper vertical connecting rod. The lower vertical connecting rod, which is movably connected, rotates while being regulated by a rotation direction regulating means so that the intermediate horizontal connecting rod moves horizontally in one direction.
The lower and intermediate horizontal connecting rods rise until they are adjacent to the upper sprocket, and the lower sprocket and intermediate sprocket located at both ends of the lower and intermediate horizontal connecting rods rise significantly. This has the effect of preventing the bucket and lower sprocket from being buried due to a larger amount of sand than expected flowing in and depositing.

Also, when the intermediate horizontal connecting rod moves horizontally in one direction and rises, the amount of horizontal movement to the top of the sand basin is extremely small, so when determining the size of the settling basin, the amount of horizontal movement of the lower sprocket should be This has the effect that it can be designed without any consideration, and the placement of other equipment is not subject to any restrictions.

Furthermore, the endless chains suspended from the upper sprocket, middle sprocket I, and lower sprocket are not all ovens, but some of them are turned crosswise, so they are difficult to come off when the lower and middle sprockets rise. There is an effect.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing one embodiment of the present invention in which the lower sprocket is located near the bottom of the sand settling basin;
The figure is a schematic configuration diagram showing an embodiment similar to that of FIG. 1, with the lower sprocket positioned above the sand settling basin, and FIG. 3 is a schematic configuration diagram showing a conventional sand settling and scraping machine. (1) is a sand pool, (2) is a sand basin, on, C11l
is the axis, (32). (33) is the upper sprocket, (34), (35)
is the upper vertical connecting rod, (36) is the middle horizontal connecting rod, (37
), (38) is the intermediate sprocket, (39),
(40) is the lower vertical connecting rod, (4]) is the lower horizontal connecting rod, (42), (43) are the lower sprocket, (44)
) is the first hinge means, (45) is the second hinge means,
(471 is an endless chain, (48) is a bucket, (53
) is a drive device (drive source), (54) is an electric motor (elevating device), and (55) is a cable (elevating device).

Claims (2)

[Claims] (1) Two shafts installed at a predetermined distance above the side wall of the sand settling basin, an upper sprocket rotatably attached to each of the two shafts, and a sprocket rotatably connected to each of these shafts. an upper vertical connecting rod, an intermediate horizontal connecting rod whose both ends are rotatably connected to the lower ends of these upper vertical connecting rods, and each connection between both ends of the intermediate horizontal connecting rod and the lower end of the upper vertical connecting rod. An intermediate sprocket rotatably attached to each part, a lower vertical connecting rod rotatably connected to both ends of the intermediate horizontal connecting rod, and lower ends of these lower vertical rods located near the bottom of the settling basin. a lower horizontal connecting rod whose both ends are rotatably connected to the lower horizontal connecting rod; a lower sprocket rotatably attached to each connecting portion of both ends of the lower horizontal connecting rod and the lower end of the lower vertical connecting rod;
A rotation direction regulating means for regulating the rotation direction of the upper vertical connecting rod and the lower vertical connecting rod in one direction, and an open space between the lower sprocket and the intermediate sprocket on the side that are arranged in the vertical direction; There is a cross between the sprocket, a cross between the lower sprocket and the middle sprocket on the other side, a cross between the middle sprocket and the upper sprocket, and the lower sprockets are suspended in the open. What is claimed is: 1. A sand-settling and scraping machine characterized by comprising: an endless chain to which is attached, a drive source for driving the endless chain, and an elevating means for elevating and lowering a lower horizontal connecting rod. (2) The lifting means includes a cable connected to the lower horizontal connecting rod;
2. A sand-settling and scraping machine according to claim 1, comprising an electric motor capable of freely winding up a cable.